JP2006320900A - Absorbent, and sheet, feces treatment agent, or plant pot comprising the absorbent - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an absorbent, a sheet, a feces treatment agent, or a plant pot prepared by using a material recovered from a sanitary article and/or a material constituting a sanitary article sanitized by disinfecting or sterilizing colon bacilli and various bacteria sticking to the recovered filthy sanitary article. <P>SOLUTION: The absorbent, sheet, feces treatment agent, and plant pot are characterized in that a water absorbing layer of mixed materials comprising a pulp, a water absorbing resin and paper powder each containing dead colon bacilli and a substance having a bactericidal action and each having a water content of less than 10% by weight, recovered from a sterilized sanitary article contaminated with filth is disposed between a first and a second water absorbing paper layer. The filth sticking to the materials constituting the sanitary article is subjected to drying and disinfection treatment, which materials are thereafter separated from the article and used for preparing the absorbent, sheet, feces treatment agent or plant pot, and thereby the recovered materials useful for a sanitary article can be effectively utilized. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a method for recovering raw materials from soiled sanitary products, and in particular, from sanitary products soiled at the time of manufacture and used sanitary products, such as pulp materials, water-absorbing resins and paper powders used in the sanitary products. The present invention relates to a method for recovering a material from a dirty sanitary article for recovering the material reusably. The present invention also relates to a method for recovering a sanitary product material for recovering a reusable sanitary product material from a dirty sanitary product, and in particular, recovering a sanitary sanitary product material from a used dirty sanitary product. Regarding the method. Furthermore, this invention relates to the absorber, the sheet, the excrement disposal material, or the flowerpot manufactured using the raw material for sanitary goods collect | recovered from the sanitary sanitary goods reusably.

Sanitary goods such as disposable diapers, milk pads, urine pads and sanitary napkins are manufactured to be disposable. Such a disposable sanitary article is provided with a water-absorbing layer portion formed of a pulp material containing a highly water-absorbent resin between the layers formed of two water-absorbing papers, and below one water-absorbing paper layer. An impermeable plastic film is provided, and a non-woven fabric is provided on the other water absorbent paper.
Since this disposable hygiene product is not used repeatedly, it is not necessary to be cleaned by washing and can be disposed of after use, so it is convenient and used in hospitals and homes.

Even such disposable sanitary goods are required to be hygienic for the purpose of use, and are discarded and incinerated simply by being contaminated in the manufacturing process. Even if the amount is a small percentage as a whole, the amount of incineration treatment is not negligible and is problematic because the total amount is large. Since such hygiene products are required to be hygienic, it is difficult to regenerate them, and so far, even regenerating has not been discussed. In particular, so-called used diapers after use are dirty with stool and urine, and the treatment is exclusively by incineration. The amount of used paper diapers is enormous, and the disposal cost of used paper diapers is, for example, 100 to 160 yen per kg. In addition, the incineration process is a problem because it requires a large amount of fuel and a large amount of manpower.
The object of the present invention is to solve the problems associated with the recycling process of such dirty sanitary goods.

In order to solve the above problems, an object of the present invention is to disinfect or sterilize Escherichia coli and other germs adhering to a dirty sanitary product and recover a sanitary material.
The present inventor, in a substantially sealed space, dries sanitary goods soiled by hot air, dries and disinfects the dirt adhering to the sanitary goods material, and the dirt can be treated in a sanitary manner. As a result, the present invention has been discovered.

  That is, the present invention was recovered from a sanitary article having dirt adhered thereto, containing dead Escherichia coli and a bactericidal substance between the first and second absorbent paper layers and having a moisture content of 10% by weight or less. The absorbent body is characterized in that a water-absorbing mixed layer portion containing pulp material, water-absorbing resin, and paper powder is disposed, and the present invention provides a dead layer between the first and second water-absorbing paper layers. Water-absorbing material containing pulp material, water-absorbing resin, paper powder and plastic material collected from sanitary goods with soil attached, with a water content of 10% by weight or less. An absorbent body comprising a mixed layer portion.

  The present invention also includes an upper water-permeable layer part, a bottom-side water-impermeable film layer part, a first water-absorbent paper layer part disposed under the water-permeable layer part, and the bottom-side water-impermeable film layer part. A water-absorbing paper layer disposed between the first and second water-absorbing paper layers, comprising dead Escherichia coli and a substance having a bactericidal action, and having a water content of 10% by weight or less. And a sheet comprising a water-absorbing mixed layer containing a pulp material recovered from a sanitary article on which dirt is adhered, a water-absorbing resin, and paper powder, and the present invention further comprises an upper water-permeable layer. Part, bottom water-impermeable film layer part, first water-absorbing paper layer part disposed below the water-permeable layer part, and second water-absorbing paper disposed on the bottom-side water-impermeable film layer part Comprising a layer, including dead Escherichia coli and a substance having a bactericidal action, between the first and second water-absorbent paper layer portions, Of 10 wt% or less, in sheets, characterized in that it comprises pulp material recovered from hygiene articles dirt is adhered, the water-absorbing resin, a water absorbing mixture layer portion containing paper powder and a plastic material.

  Further, the present invention provides a pulp material, a water absorbent resin and paper powder which are turned from a sanitary article to which dirt is attached, containing dead Escherichia coli and a substance having a bactericidal action and having a water content of 10% by weight or less. The present invention provides an excrement disposal material characterized in that it is formed in a granular form, and the present invention includes dead Escherichia coli and a substance having a bactericidal action, and a moisture content of 10% by weight or less is attached to the soil. The present invention relates to an excrement disposal material characterized in that it comprises a pulp material, a water absorbent resin, a paper powder and a plastic material collected from a sanitary product, and is formed into a granular shape. A core formed of granules containing pulp material, water-absorbent resin and paper powder, which is made from hygienic articles with dirt, containing Escherichia coli and a substance having a bactericidal action and having a water content of 10% by weight or less Part and the core A waste treatment material comprising a mixture of paper powder and a water-absorbent resin, and the present invention further includes dead E. coli and a substance having a bactericidal action, and a moisture content 10% by weight or less of a pulp material, water absorbent resin, paper powder, and plastic material collected from sanitary goods on which dirt is adhered, and a core portion formed into a granular shape, and covering the core material An excrement disposal material comprising a covering portion containing a mixture of paper powder and a water absorbent resin.

  In addition to these, the present invention includes a first water-absorbing paper layer portion that forms an inner surface and a second water-absorbing paper layer portion that forms an outer surface, and further includes the first and second water-absorbing paper layer portions. A plate comprising a water-absorbing mixed layer portion mainly containing a plastic material recovered from sanitary goods with dirt, including dead Escherichia coli and a substance having a bactericidal action, and having a moisture content of 10% by weight or less The present invention provides a flower pot characterized in that a side part and a bottom part are formed by members, and the present invention relates to a first water absorbent paper layer part forming an inner surface and a second water absorbent paper layer forming an outer surface. And a sanitary article in which dirt is attached between the first and second water-absorbent paper layers, including dead Escherichia coli and a substance having a bactericidal action, and having a water content of 10% by weight or less. Mainly containing plastic material recovered from Side and bottom parts are formed by a plate member with a pulp material recovered from sanitary goods to which dirt is attached, a water-absorbent mixed layer portion containing water-absorbent resin and paper powder, with a content less than the plastic material. Further, the present invention provides a first water-absorbing paper layer portion that forms an inner surface, a water-impermeable thin layer portion that forms an outer surface and has air permeability, and A second water-absorbing paper layer disposed in contact with the water-permeable thin layer portion, and further comprising dead Escherichia coli and a substance having a bactericidal action between the first and second water-absorbing paper layer portions. The side portion and the bottom portion are formed by a plate member having a water content of 10% by weight or less and a water-absorbing mixed layer portion mainly containing a plastic material recovered from a sanitary article on which dirt is attached. In a flowerpot characterized by The present invention provides a first water-absorbing paper layer portion that forms an inner surface, an impermeable thin layer portion that forms an outer surface and has air permeability, and a second disposed in contact with the impermeable thin layer portion. In addition, between the first and second water-absorbing paper layer portions, the dead water-containing paper layer contains dead Escherichia coli and a substance having a bactericidal action, and has a moisture content of 10% by weight or less. Water absorption containing pulp material, water-absorbent resin, and paper powder collected mainly from sanitary goods that are contaminated with a content less than that of the plastic material. A side wall and a bottom portion are formed by a plate member having a water-soluble mixed layer portion, and in addition, a water-permeable thin layer portion that forms an inner surface, and an outer surface that is not formed. The water-permeable thin layer part and the water-permeable thin layer part A first water-absorbing paper layer portion disposed on the back side of the paper and a second water-absorbing paper layer disposed on the back side in contact with the water-impermeable thin layer portion, the first and second water-absorbing paper layers. Water-absorbing material mainly containing plastic material recovered from sanitary goods with dirt contained and containing 10% by weight or less of dead Escherichia coli and bactericidal substances, disposed between the functional paper layers A side wall and a bottom portion are formed by a plate member having a mixed layer portion. In addition to these, the present invention further includes a water-permeable thin layer portion forming an inner surface, and an outer surface. Forming a water-impermeable thin layer portion, a first water-absorbing paper layer portion disposed in contact with the water-permeable thin layer portion, and a back side thereof in contact with the water-impermeable thin layer portion A second water-absorbing paper layer disposed between the first and second water-absorbing paper layer portions. , Mainly containing a plastic material recovered from sanitary goods having a water content of 10% by weight or less, containing dead E. coli and a substance having a bactericidal action, and having a content less than the plastic material. A plate material that is collected from a sanitary article to which dirt is attached, a water-absorbent mixed layer portion containing water-absorbent resin and paper dust, and is formed by integrally forming a plate member to form a side portion. And a flower pot characterized by having a bottom formed.

  In the present invention, the sanitary article to which dirt is attached is heated to a temperature of 80 ° C. or more, and the sanitary article to which the dirt is attached is dried to easily separate the dirt, and thus dried. The sanitary product is sieved under forced vibration, a part of the dried soil is separated from the sanitary product, the material is disinfected from the sanitary product to which the soil adheres, and the product is cleaned and cleaned. The sanitary article material is recovered and can be used effectively, thereby including dead Escherichia coli and a substance having a bactericidal action between the first and second absorbent paper layers, and a water content of 10 Using an absorbent body characterized in that a water-absorbing mixed layer portion containing pulp material, water-absorbing resin and paper powder collected from sanitary goods with dirt attached is disposed in weight% or less. , Sheets, excrement disposal materials or flower pots Come, the past, the hygiene articles dirty that had been exclusively waste, can be effectively used as a raw material for hygiene products and horticulture and agricultural supplies. In addition, conventionally, it is possible to reduce costs by exclusively utilizing costs required for disposal for the production of effective raw materials, and it is possible to effectively use resources and avoid waste of resources as much as possible.

  In the present invention, the term dirty sanitary ware refers to sanitary ware that has been soiled in the manufacturing process, transportation process, and display process of sanitary ware, as well as used sanitary ware. In the present invention, a dirty sanitary article means a dirty paper diaper, a dirty milk pad, a dirty urine pad, a dirty sheet, a dirty gauze, a dirty bandage or a dirty absorbent cotton, or a combination of two or more of these hygiene articles. To do.

  Hygiene products, in particular paper diapers, milk pads, urine pads or sheets, have a water-absorbing layer formed of pulp material and water-absorbing resin between the layers of water-absorbing paper, and under the water-absorbing paper layer at the bottom An impermeable plastic material film is provided on the side, and a non-woven fabric of the water permeable plastic material is provided on the upper side of the upper absorbent paper layer. In the case of used sanitary goods, such as used paper diapers, dirt due to excretion, especially stool, adheres mainly to a part of non-woven fabric made of plastic material, and dirt caused by body fluids such as urine is made of plastic material. It adheres to a part of a nonwoven fabric, a water absorbing layer, and a plastic material film. In the case of used urine pads and dairy pads, dirt from body fluids such as sweat and urine is mainly found on some non-woven fabrics made of plastic materials, some water-absorbing layers, and some thin layers made of plastic materials. Adhere to.

  In the present invention, soiled sanitary goods are attached with bodily fluids such as excrement, sweat and urine, and in order to kill Escherichia coli and other various bacteria present there, a temperature of 80 ° C. or higher, preferably 100 ° C. Heat drying is performed with the above temperature, more preferably hot air having a temperature of 110 ° C. or higher. This kills the bacteria attached to the hygiene product and significantly reduces the number of viable bacteria. Further, by drying in this manner, dirt, particularly solid excrement, is easily crushed, easily peeled off, and easily separated. In the case of paper diapers and sheets, since a polyethylene film is used for the water-impermeable thin layer portion, it is preferable to dry with hot air at a temperature as high as possible at a temperature equal to or lower than the welding temperature. This hot air drying can be performed, for example, on a porous material such as a relatively large pore size or open wire mesh or a perforated plate while applying a forced vibration. Can be done. In particular, it is preferable to dry the paper diaper while floating it on a wire mesh or in a drying chamber with hot air, because the knot of the paper diaper is broken, and the filth wrapped in the paper diaper is dropped and separated from the paper diaper. After drying or at the time of drying, unwrapping or opening the wrapped paper diaper by scratching it with a stick or plate so that the paper diaper is not broken, and separating the flakes by peeling off. Can do. Odors generated during drying or sieving are discharged collectively or individually after deodorization.

  The dried sanitary goods are sieved under forced vibration, for example, with a 30 mm sieve. The solid waste adhering to the sanitary ware is partially separated from the sanitary ware by sieving by drying, and the solid excreta still adhering to the sanitary ware becomes brittle and can be easily broken or crushed by the impact. It is wiped off and sieved and removed. The solid excrement removed here is sent to the sludge treatment step for processing. In the present invention, in the drying process, a sanitary article that is not completely melted, for example, a paper diaper, is completely unwound, and a scraper is erected on the rotating body to scrape off adhering solid excrement. A scratching step comprising a rotary scratching device that rotates the scraping bar with rotation can be provided next to the drying step. Sanitary goods such as paper diapers that have been disposed of and can be wiped off by disposing of the sanitary goods that have been disposed of are sent to the separation process by forced vibration to remove the filth. be able to.

In the drying process, or in the drying process and the scratching process, a part of the dirt is separated, and the dried dirty sanitary ware is sent to a crushing process equipped with a cutting machine or a crushing machine, and the cutting machine or crushing machine It is crushed to a particle size of 50 mm or less, preferably 30 mm or less. In this way, when sanitary goods such as paper diapers are crushed to a particle size of 50 mm or less, preferably 30 mm or less, the water-permeable thin layer part, the water-impermeable thin layer part, the water-absorbing paper and the water-absorbing layer part of the sanitary goods are respectively cut or It is crushed.
Most of the solid content is retained in the water-permeable thin layer in the sanitary hygiene product, and some of the liquid content such as sweat and urine adheres to the water-permeable thin layer in the soil. Since the water-absorbing paper, pulp material, and water-absorbing resin are absorbed by the water-absorbing layer, the dirt is crushed together with the material to which the dirt adheres, for example, by a crushing process using a crusher, and some of the dirt is fine. It becomes a crushed material. Therefore, in the present invention, in the crushing step, the crushed material that has been crushed to a particle size of, for example, 50 mm or less, preferably 30 mm or less is separated by a sieve. Separation by this sieve. That is, the sieving can be performed by a sieving apparatus provided with a plurality of stages. However, for example, according to the crushing particle size, the upper stage is provided with a sieve with an opening of 50 to 30 mm, the middle stage is provided with a sieve with an opening of 15 mm, preferably a sieve with an opening of 10 mm, and the lower stage is provided with a 5 mm opening. This is preferably carried out using a sieving apparatus provided with a sieve having three openings, ie, an upper stage, a middle stage and a lower stage. In this case, the part of the upper sieve on the sieve can be returned to the cutter or crusher and crushed again, and the middle sieve on the sieve can be compared with the pulp material and the superabsorbent resin. It is a part rich in plastic material, and it is separated by a dry and wet classification device such as air classification or cyclone, so that the part rich in pulp material and superabsorbent resin is separated and the part rich in plastic material is recovered. can do. Furthermore, the upper sieve portion of the lower sieve is a portion rich in pulp material and water-absorbing resin as compared with the plastic material, and the portion rich in plastic material is separated by dry and wet classification treatment. The portion rich in the pulp material and the water-absorbing resin can be recovered. The lower sieving portion of the lower sieving portion is a portion containing the solid content of the soil in the form of powder, and is sent to the sludge treatment step for processing.

  Each of the classified products obtained by the dry classification treatment is washed with a liquid containing a disinfectant since each of the classified products is attached with a small amount of dirt. The washed classified products can be rinsed with water, dehydrated and dried to be recycled materials. However, in each classification product obtained by the wet classification process, the dirt is separated in the classification process. In any case, the number of bacteria remaining on the material of the sanitary product to be recovered is significantly reduced by finally sterilizing and rinsing with the disinfectant-containing liquid.

  In the present invention, the recovered sanitary article material includes a pulp material and a superabsorbent resin which are more or less contained, and therefore, the superabsorbent contained by washing with a solution containing a disinfectant and rinsing with water. The resin absorbs water and becomes a gel-like substance. In order to separate and remove the water contained in the gel-like highly water-absorbent resin, the recovered sanitary article material is a dryer, For example, it is dried by a blow dryer.

  In the present invention, the substance having a bactericidal action is used for killing microorganisms adhering to dirty sanitary goods, and ozone, chlorine, sodium hypochlorite, calcium hypochlorite, hypochlorous acid, and the like. There are disinfectants and disinfectants such as lithium chlorate, chlorine dioxide, chlorine bromide, chlorinated isocyanuric acid, chloramine B or chloramine T. However, in addition to these disinfectants and disinfectants, disinfectants or disinfectants that are generally used for killing microorganisms can be used. In the case of using a disinfectant solution as a means for sterilizing bacteria and other microorganisms in sanitary goods, the concentration of the disinfectant solution is increased when the treatment time is shortened. However, if the treatment time is 30 minutes or more, the disinfectant can be used at a concentration that is normally used. For example, in the case of a sodium hypochlorite solution, it is used in an amount of 0.05 to 3% by weight. However, the results of disinfection can be examined, and the amount can be appropriately increased or decreased each time.

  In the present invention, the cleaning of classified products of classified sanitary products with a liquid containing a disinfectant is continuously performed by spraying a liquid containing a disinfectant in order to effectively use the time required for disinfection. Can do. However, in the present invention, the classified product of the sanitary product is sterilized by immersing the classified product in a disinfectant-containing liquid with stirring, and this sterilization treatment achieves the desired disinfecting effect. In the meantime, it is necessary to continue the disinfection by staying in the disinfection treatment tank, so that it can be carried out by batch operation or continuous operation.

  When cleaning classified products in water with disinfectant, chlorine gas, liquid chlorine, sodium hypochlorite, bleaching powder, advanced bleaching powder (calcium hypochlorite), calcium hypochlorite, lithium hypochlorite, organic Chlorinating agents, chlorine dioxide or ozone can be used. Ozone has a high decomposition rate, has a high sterilizing power, and can be sterilized in a short time. Chlorine is less sterilizing than ozone and requires a long time for sterilization. However, since the chlorine disinfectant has a longer sterilizing power than the ozone disinfectant, it is preferable to use liquid chlorine, sodium hypochlorite or calcium hypochlorite in the present invention. Regarding the concentration of the disinfectant solution, it is preferable to set the concentration of the disinfectant solution used according to the type of soiled sanitary products, the state of soiling, and the processing time.

As described above, in the present invention, dirty sanitary ware heat disinfection and disinfection with a disinfectant are performed, so that E. coli adhering to the collected sanitary ware material can be made negative. In general, the number of bacteria before sterilization of disposable medical products, for example, a 10 ⁶ to 10 ^7/1 g raw cotton is absorbent cotton at 10 ² to 10 ^4/1 g, at 10 ² to 10 ^4/1 g with a gauze However, in the present invention, at least the number of bacteria in the sanitary product material to be collected can be equal to or less than the number of bacteria before sterilization of the exemplified disposable medical product. In the present invention, Escherichia coli is killed and formed into a body, and it is rarely left, so it is not a sanitary problem.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. However, the present invention is not limited to the following description and examples.
FIG. 1 is a process diagram showing an outline of a process for treating a dirty paper diaper according to an embodiment of the present invention. FIG. 2 is a schematic process diagram of the diaper rinsing process in the process of the paper diaper according to one embodiment of the present invention. FIG. 3 is a process diagram showing an outline of the processing steps of a dirty paper diaper according to another embodiment of the present invention different from the embodiment of FIG. Drawing 4 is an explanatory view showing the outline of a wet classification process about the processing product in the processing process of a paper diaper. In FIG. 1 to FIG.

  In this example, sodium hypochlorite is used as a disinfectant, and sodium hypochlorite is dissolved in water and used in a 0.2 wt% solution. The hot air dryer 1 for dirty paper diapers is provided with a dirty paper diaper supply port 3 on one side of the upper part 2 and an exhaust port 4 on the other side, and hot air is introduced on one side of the lower part 5. A port 6 is provided, and a dry matter discharge port 7 is provided on the other side. In this example, a plurality of stages of net conveyors 8 are provided inside the hot air dryer 1, and dirty paper diapers are introduced into the dryer 1 from the supply port 3 and transferred to the net conveyor 8. Then, it is heated to a temperature of 80 ° C. or higher with hot air and dried. While a part of the dried paper diaper is heated by hot air passing through the mesh of the net conveyor 8, the knot breaks and the solid excrement wrapped in the paper diaper falls out of the paper diaper, and the net conveyor Separated through the mesh.

  The dried product discharged from the bottom discharge port 7 of the dryer 1 is introduced into the sieving device 9 from the introduction path 10 of the sieving device 9 connected to the bottom discharge port 7. In this example, the sieving device 9 is provided with a vibration sieve 11 connected to vibration transmission means (not shown) of the forced vibration device, and the bottom part has a discharge port 12 and a sieve upper part. A discharge port 13 is provided. In this example, the dried paper diaper is introduced into the sieving device 9 and is forcibly subjected to vibration and impact while moving the vibrating screen 11, so that the knots in the paper diaper are still undissolved. The solid excrement wrapped in the paper diaper is separated through the sieve of the vibrating sieve 11. In this way, most of the solid excrement wrapped in the paper diaper is separated from the paper diaper and discharged from the discharge port 12 in the under-sieving portion. In this example, the discharge port 13 in the upper portion of the paper diaper sieving device 9 is connected to the crushing device 14, and the upper portion of the diaper sieving device 9 is connected to the crushing device 14 from the discharge port 13 in the upper portion of the diaper. And then crushed. In this example, the crushed material outlet 15 of the crushing device 14 is connected to a sieving device 16, and the crushed paper diaper crushed material is introduced into the sieving device 16 and divided according to particle size.

  In this example, the sieving device 16 has a sieve 17 with an opening of 30 mm in the uppermost stage, a sieve 18 with an opening of 10 mm in the lower stage, and an eye in the lowermost stage. A sieve 19 having an opening of 5 mm is arranged. In this example, among the crushed particles screened by the sieving device 16, the crushed particles 20 having a particle size of 30 mm or more on the sieve having a mesh size of 30 mm are fed from the top sieving outlet 21 to the crushing device 14. It is returned to and is crushed again. The crushed particles 22 having a particle size of 30 to 10 mm, which are sieved between the sieve 17 having a mesh size of 30 mm and the sieve 18 having a mesh size of 10 mm, are crushed material rich in plastic material compared to pulp material and water absorbent resin. Particles, introduced from a middle-stage sieving outlet 23 to a classifier (not shown) connected to the intermediate-stage sieving outlet 23, crushed particles rich in plastic material, pulp material and water absorption It is divided into crushed material particles rich in functional resin. The crushed particles 24 having a particle size of 10 to 5 mm, which are sieved between a sieve 18 having a mesh size of 10 mm and a sieve 9 having a mesh size of 5 mm, are crushed richer in pulp material and water-absorbing resin than plastic materials. Crushed particles rich in pulp material and water-absorbent resin, introduced into a classifier 27 connected to an inlet 26 from the lowermost sieving outlet 25 to the lowermost sieving outlet 25; It is divided into crushed particles rich in plastic materials. The crushed particles 28 having a particle size of 5 mm or less sieved under the sieve 19 having a sieve mesh of 5 mm are crushed particles rich in solid excreta, and the bottom outlet 29 is connected to the bottom outlet 29 of the sieving device 16. The sludge is introduced into a sludge treatment apparatus (not shown) connected to the sewage and sludge treated.

  In this example, the crushed particles discharged from the intermediate stage outlet 23 and the lowermost stage outlet 25 are both sent to their respective classifiers, and are crushed particles rich in pulp material and water absorbent resin, and rich in plastic material. Classified into crushed particles. In FIG. 1, only the classifier 27 connected to the lowermost outlet 25 is shown, and the classifier connected to the intermediate outlet 23 has the same structure as the classifier 27, but is omitted in FIG. Not shown.

  In this example, the classifier 27 is a dry horizontal flow type air classifier, and the plastic material particles have a higher specific gravity and a higher settling speed than the pulp material particles and the water-absorbent resin particles. Since the particle dropping position is close to the introduction port 26, a first sorting chamber 29 for sorting the crushed particles 28 rich in plastic material is provided at a location close to the introduction port 26. The second sorting chamber 31 for sorting the crushed particles 30 rich in the pulp material and the water-absorbing resin 30 is provided at a location far from the center. By this classification treatment, the crushed particles 28 rich in plastic material classified and collected in the first sorting chamber 29, the crushed particles 30 rich in pulp material and water absorbent resin classified and collected in the second sorting chamber 31, In any case, for example, liquid excreta is attached in a dried state, so that the crushed particles 28 rich in the classified plastic material and the crushed particles 30 rich in the pulp material and the water absorbent resin are sent to the rinsing step 32. It is done.

  FIG. 2 shows a rinsing step 32. In this example, the initial rinsing solution can contain a disinfectant. As a disinfectant, sodium hypochlorite can be used. In this case, sodium hypochlorite is dissolved in water and used in a 0.2% by weight solution. A hopper 33 for supplying crushed particles of the dried and classified paper diaper material is provided above the belt conveyor device 34. The crushed particles of the disposable diaper material are supplied from the discharge side end 35 of the belt conveyor device 34 to the first rinsing washing tank 36 provided below the end as shown by an arrow 37. The first rinsing washing tank 36 is provided with a porous plate 38 at the bottom and a rinsing liquid supply pipe 39 at the side.

  In this example, a stirrer 40 for disturbing the rinsing liquid is provided below the perforated plate 38 at the bottom of the first rinsing washing tank 36, and a rinsing liquid discharge port 41 is provided. On the perforated plate 38 at the bottom of the first rinsing and washing tank 36, the first paper diaper material is scraped to move the crushed particles of the paper diaper material rinsed and washed from the perforated plate 38 toward the top of the first rinsing and washing tank 36. A device 42 is provided. A partition plate 43 is provided in the first rinsing / cleaning tank 36 of the present example above the first paper diaper material scraping device 42. In this example, the paper diaper material crushed particles washed in the first rinsing washing tank 36 are transferred to the second rinsing washing tank 44 and rinsed again. In this example, the second rinsing / cleaning tank 44 is formed in the same structure as the first rinsing / cleaning tank 36.

  Below the discharge side end 45 of the scraping device 42 of the first rinsing washing tank 36, a hopper 46 for supplying crushed particles of the washed paper diaper material to the second rinsing washing tank 44 is provided. Below the hopper 46, a belt conveyor device 47 for supplying crushed particles of a paper diaper material is provided. As shown by the arrow 49, the diaper material crushed particles rinsed and washed in the first rinsing washing tank 36 are passed from the discharge side end 48 of the belt conveyor device 47 to the second rinsing washing tank 44 provided therebelow. Supplied. Similar to the first rinsing / cleaning tank 36, the second rinsing / cleaning tank 44 is provided with a porous plate 50 at the bottom and a rinsing liquid supply pipe 51 at the side. In this example, a stirrer 52 for disturbing the rinsing liquid is provided below the perforated plate 50 at the bottom of the second rinsing washing tank 44, and a rinsing liquid discharge port 53 is provided. On the perforated plate 50 at the bottom of the second rinsing / cleaning tank 44, the second paper diaper material crushed material that moves the crushed paper diaper material crushed particles from the perforated plate 50 toward the upper portion of the second rinsing / cleaning tank 44 is moved. A particle scraping device 54 is provided. In the second rinsing / cleaning tank 44 of this example, a partition plate 55 is provided above the second paper diaper material crushed material particle collecting device 52 as in the first rinsing / cleaning tank 36. In this example, the disposable diaper material crushed particles washed in the second rinsing washing tank 44 are sent to the centrifugal dehydrator 56 and dehydrated.

  Under the discharge side end 57 of the second paper diaper material crushed material particle collecting device 54 in the second rinsing and washing tank 44, the paper diaper material crushed material that supplies the rinsed and washed paper diaper material crushed material particles to the centrifugal dehydrator 56. A hopper 58 for supplying material particles is provided, and a belt conveyor device 59 for supplying crushed paper diaper material particles is provided below the hopper 58. The diaper material crushed particles that have been rinsed and washed in the second rinsing and washing tank 44 are indicated by arrows 62 from the discharge side end portion 60 of the belt conveyor device 57 to the supply port 61 of the centrifugal dewatering device 56 provided therebelow. Supplied as The separated waste water discharge pipe 63 is connected to the lower side portion of the centrifugal dehydrator 56, and the waste water separated by the centrifugal separation method is discharged from the discharge pipe 63.

  In addition, a conveyor device 64 is provided at the bottom of the centrifugal dewatering device 56 for transporting dewatered paper diaper material crushed particles. The transporting conveyor device 64 is connected to an inlet 66 of the blower drying device 65. The dehydrated paper diaper material crushed particles are sent to the blower drying device 65 by the conveying conveyor device 64 and dried. The dried diaper material crushed particles 67 are taken out from the dried product outlet 68.

  In this example, the rinsing liquid discharge pipes 69 and 70 are connected to the rinsing liquid discharge ports 41 and 53 of the first and second rinsing washing tanks 36 and 44, and are discharged from the rinsing liquid discharge ports 41 and 53. The rinsing waste liquid is discharged to the rinsing waste liquid discharge line 71 via the rinse liquid discharge lines 69 and 70, respectively. The rinsing waste liquid discharged to the rinsing waste liquid discharge pipe 71 contains filth and the like separated from the dirty paper diaper. In order to separate these dirt, the rinsing waste liquid is sent to the inclined vibrating screen device 72. Thus, for example, a solid substance having a particle size of 0.5 mm or more is separated by the vibrating sieve 73 having a sieve opening of 0.5 mm. The separated solid matter having a particle size of 0.5 mm or more is sent to the centrifugal dehydrator 75 by the vertical conveyor 74 and dehydrated. The dehydrated solid matter having a particle size of 0.5 mm or more is sent from the centrifugal dewatering device 75 to the blower drying device 77 by the belt conveyor device 76 and dried. The dried solid matter having a particle size of 0.5 mm or more mainly containing pulp material and water-absorbing resin is recovered as recycled paper diaper material crushed particles from the outlet 78 of the blower dryer 77.

  In this example, when the rinsing liquid contains a disinfectant, the rinsing waste liquid containing the filth from which the solid matter having a particle size of 0.5 mm or more has been separated by the vibrating sieve 73 is passed from the rinsing waste liquid line 79 to the settling tank 80. The waste liquid which has been sent and allowed to stand for a certain period of time to reduce its disinfecting action and whose disinfecting action has decreased is discharged from the pipe 81 to the activated carbon adsorbing device 82 to adsorb and remove the disinfectant. The waste liquid from which the disinfectant has been removed is sent from the pipe 83 to the activated sludge treatment device 84, treated and purified by the activated sludge method, and the purified treated water 85 is discharged.

  In this example, the rinsing waste liquid pipe 87 from the discharge pipe 86 of the centrifugal dehydrator 75 and the rinse waste liquid pipe 88 from the discharge pipe 63 of the centrifugal dehydrator 56 are 0.5 mm or less from the vibration sieve device 72. The rinse liquid waste liquid from which the solid matter having a particle size of 0.5 mm or less from the discharge pipe 79 is separated and removed is connected to the discharge pipe 79 of the rinse liquid waste liquid from which the solids of the particle size are separated and removed. The waste water pipes 87 from the discharge pipes 63 and 86 of the dehydrators 56 and 75 are merged, sent to the activated carbon treatment tank, treated with activated carbon, and then sent to the activated sludge treatment tank to be treated with activated sludge. . In this example, when the rinsing liquid waste liquid or the disinfectant is not contained, the activated sludge can be sent to the activated sludge treatment tank without being subjected to the activated carbon treatment.

  In this example, the blower dryers 65 and 77 are dried with hot air having a temperature of 100 to 120 ° C., for example. The crushed material rich in the collected plastic material is carried out from the blower dryer 65 by the carry-out conveyor device 67, and the recovered fluff pulp having a particle size of 0.5 mm or less is taken out from the blower dryer 77 by the carry-out conveyor device 78. It is carried out. In this example, the blast dryers 1, 65 and 77 all dry waste paper diaper material or crushed paper diaper material particles with high-temperature hot air, so that the resulting dried product is sterilized with hot air, Is.

  In this example, the device denoted by reference numeral 82 is an activated carbon adsorption device, and the device denoted by reference numeral 84 is an activated sludge treatment device. However, both the devices denoted by reference numerals 82 and 84 may be activated carbon adsorption devices. In addition, both the devices 82 and 84 can be activated sludge treatment devices. In addition, if a sewage route containing a disinfectant and a sewage route having a low disinfectant content are formed separately, a sewage route having a low disinfectant content is compared to a route having a high disinfectant content. Since the disinfecting power is reduced, a water mixing tank containing a disinfectant may be mixed separately.

  Compared with the embodiment shown in FIG. 1, the embodiment shown in FIG. 3 is used to remove the discarded paper diaper between the dryer 1 and the sieving device 9 and scrape the solid excreta adhering to the nonwoven fabric. The difference is that a scraping device for dropping is provided and a wet classifier is connected to the dry classifier, and the other points are substantially the same.

  Also in this example, as in the embodiment of FIG. 1, the hot air dryer 1 is provided with a plurality of stages of net conveyors 8, and dirty paper diapers are introduced into the dryer 1 from the supply port 3. While being transported through the net conveyor 8, it is heated to a temperature of 80 ° C. or higher by hot air and dried. While a portion of the dried paper diaper is heated by hot air passing through the mesh of the net conveyor 8, the knot is broken and the solid excrement wrapped in the paper diaper is separated from the paper diaper and separated. They are separated through the mesh of the conveyor 8.

  From the bottom part discharge port 7 of the dryer 1, the dried material of a paper diaper is discharged | emitted with a solid excrement. The solid excrement discharged from the bottom discharge port 7 of the dryer 1 and the dried material of the paper diaper are discharged from the introduction pipe line 90 of the paper diaper opening device 89 connected to the bottom discharge port 7 of the dryer. To be introduced. In this example, the paper diaper opening device 89 is provided with a paper diaper scraping device 94 including a cylindrical member 91, a paper diaper scraping bar member 92, and a cylindrical net member 93. The cylindrical member is rotatably provided in the disposable diaper opening device 89 by a rotation device (none of which is shown). Inside the cylindrical member 91, a paper diaper scratching bar member 92 having a round end is erected so as to scratch both ends of the paper diaper without breaking the paper diaper. In this example, a cylindrical mesh member 93 having a mesh size of 10 mm is stretched inside the cylindrical member so as to separate solid excrement separated from the disposable diaper and scratch only the disposable diaper. Has been. In this example, the dried paper diaper is connected to the bottom discharge port 7 of the dryer and the introduction pipe line 90 of the opening device 89 of the paper diaper that has a lower end forming a tapered chute at the upper end. It is introduced into a paper diaper scraping device 94. The dried and used dirty paper diaper introduced into the paper diaper scraping device 94 is forcibly scratched by the scraping bar member 92 while being conveyed while rolling in the cylindrical net member 93. The paper diaper which is unwound or unknotted is separated from the paper diaper when the surface is scratched, the solid excrement wrapped or attached to the paper diaper is peeled off and separated from the paper diaper. It is discharged from the scratching device 94. In this example, solid excrement is separated and the paper diaper discharged from the paper diaper scraping device 94 is discharged together with the solid excrement under the net of the cylindrical net member 93 and the discharge port of the paper diaper opening device 89. The sieving device 9 is introduced into the sieving device 9 from the introduction pipe 10 of the sieving device 9 connected to 95.

  In this example, similarly to the embodiment shown in FIG. 1, the sieving device 9 is provided with a vibration sieve 11 connected to vibration transmission means (not shown) of the forced vibration device, and a sieve is provided at the bottom. A lower portion discharge port 12 and a sieve upper portion discharge port 13 are provided. In this example, the dried paper diaper with the knots and connection parts unwound is introduced into the sieving device 9 in an open state, and is forcibly subjected to vibration and impact while moving the vibration sieve 11. Then, the solid excrement wrapped in the paper diaper is separated through the mesh of the vibrating sieve 11. In this way, most of the solid excrement wrapped in the paper diaper is detached from the paper diaper and discharged from the discharge pipe 12 in the under-sieving portion. In this example, the discharge port 13 in the upper portion of the paper diaper sieving device 9 is connected to the crushing device 14, and the upper portion of the diaper sieving device 9 is connected to the crushing device 14 from the discharge port 13 in the upper portion of the diaper. And then crushed. In this example, the crushed material outlet 15 of the crushing device 14 is connected to a sieving device 16, and the crushed paper diaper crushed material is introduced into the sieving device 16 and divided according to particle size.

  In this example, the sieving device 16 has a sieve 17 with an opening of 30 mm in the uppermost stage, a sieve 18 with an opening of 10 mm in the lower stage, and an eye in the lowermost stage. A sieve 19 having an opening of 5 mm is arranged. In this example, among the crushed particles screened by the sieving device 16, the crushed particles 20 having a particle size of 30 mm or more on the sieve having a sieve screen of 30 mm are fed from the uppermost sieving outlet 21 to the crushed device. 14 is returned to the crushing process again. The crushed particles 22 having a particle size of 20 to 10 mm, which are sieved between the sieve 17 having a mesh size of 30 mm and the sieve 18 having a mesh size of 10 mm, are crushed material rich in plastic material compared to pulp material and water absorbent resin. Particles, introduced from a middle stage sieving outlet 23 into a classifier (not shown) connected to the middle stage sieving outlet 23, and crushed particles rich in plastic material, pulp material and water absorption It is divided into crushed material particles rich in functional resin. The crushed particles 24 having a particle size of 10 to 5 mm, which are sieved between a sieve 18 having a mesh size of 10 mm and a sieve 9 having a mesh size of 5 mm, are crushed richer in pulp material and water-absorbing resin than plastic materials. Crushed particles rich in pulp material and water-absorbing resin, introduced into a classifier 27 connected to an inlet 26 from the lowermost sieving outlet 25 to the lowermost sieving outlet 25; It is divided into crushed particles rich in plastic materials. The crushed particles 28 having a particle size of 5 mm or less, which are sieved under the sieve 19 having a sieve size of 5 mm, are crushed particles rich in solid excreta. From the bottom outlet 29 of the sieving device 16, the bottom outlet The sludge is introduced into a sludge treatment apparatus (not shown) connected to the sewage and sludge treated.

  Also in this example, as in the embodiment of FIG. 1, the crushed particles discharged from the intermediate stage outlet 23 and the lowermost stage outlet 25 are all sent to the respective classifiers to be used as pulp material and water absorbent resin. Classification into rich crushed particles and crushed particles rich in plastic materials. Also in FIG. 3 of this example, only the classification device 27 connected to the lowermost stage outlet 25 is shown, and the classification device connected to the intermediate stage outlet 23 has the same structure as the classification device 27, but in FIG. Are also omitted and not shown.

  In this example, the classifier 27 is a dry horizontal flow type air classifier, and the plastic material particles have a higher specific gravity and a higher settling speed than the pulp material particles and the water-absorbent resin particles. Since the particle drop position is close to the introduction port 26, a first sorting chamber 29 for sorting the crushed particles 28 rich in plastic material is provided in a place near the introduction port 26. In this example, since the water-absorbing resin absorbs water and has a large specific gravity, the second sorting chamber 97 for sorting the crushed particles 96 rich in the water-absorbing resin at a location close to the inlet 26 next to the plastic material. And separate it from the pulp material. Since the pulverized material particles 98 rich in pulp material have a relatively small specific gravity, a third sorting chamber 99 for sorting the crushed material particles 98 rich in pulp material is provided at a place where the dropping point is farthest from the inlet 26. Also in this example, by this classification process, the crushed particles 28 rich in plastic material classified in the first sorting chamber 29, the crushed particles 96 rich in water-absorbing resin classified in the second sorting chamber 97, and any of them are, for example, Since liquid excreta is attached in a dry state, the crushed particles 28 rich in plastic material classified in the first sorting chamber and the crushed particles rich in water-absorbing resin classified in the second sorting chamber 97 98 and the crushed particles 30 rich in pulp material classified into the third sorting chamber 99 are sent to the wet classifier 100, respectively.

  In this example, a cyclone type separator was used as the wet classifier 100. In the wet classifier 100, an overflow portion 102 is formed around the upper end of the inverted conical main body 101, in which particles having a low specific gravity are selected, and particles having a high specific gravity are selected at the lower end of the main body 101. A sedimentation portion 103 is formed. The crushed particles 99 rich in the classified plastic material are suspended in water and supplied from the mixing device 105 through the supply pipe 106 into the supply guide pipe 104 in the upper central portion, and are centrifuged by the upward flow. It is separated into each material by action. The mixing device 105 is provided with an inlet 107 for the crushed particles 99 rich in the plastic material classified at the upper part, and a water supply pipe 108 is connected to one of them. The crushed particles 99 rich in the classified plastic material are supplied to the mixing device 105 from the introduction port 107 and are mixed with the water 109 introduced from the water supply pipe 108 in the mixing device 105 to be suspended. A liquid mixture is formed, introduced into the main body through the supply pipe 106, and classified. Suspended water 110 mainly containing pulp material flows out from the upper end overflow port 102 of the cyclone main body 101, and suspended water 111 mainly containing water-absorbing resin flows from the outlet 103 at the lower end of the cyclone main body 101 to the valve 112. Open and discharged.

The crushed particles rich in the classified pulp material are separated from the pulverized particles richer in the pulp material by the wet classification, the plastic material and the solid excrement are separated, and washed with water to obtain a clean pulp material. can get. According to this example, an appropriate wet classifier can be selected according to the particle size, separation with high separation accuracy can be performed, and solid excrement and other excrement can be separated.
The crushed particles rich in plastic material obtained in this example can be formed into pellets and used for gardening articles such as cat sand, solid fuel or piles, flower pots, etc., as in the embodiment of FIG. Placed between and molded into a sheet, or as a sheet, or between a plastic film and a non-woven fabric made of plastic material, the molded sheet is placed into a sheet and molded into a sheet, for example, a water absorbent sheet, a pet Sheets, plywood, cushioning materials, roofing sheets, waste sheets, building sheets, pallet materials, and oil absorbing sheets can be used. The crushed particles rich in classified pulp material can be, for example, water-absorbing sheets, pet sheets, wastes, oil-absorbing sheets, toilet paper, and toilet seat sheets, as in the embodiment of FIG. Can be used for soil and water retention for agriculture and horticulture, and for cultivation soil for seedling and horticulture, and the material rich in high water-absorbent resin is placed between water-absorbent paper and formed into a sheet. And it can be used as a water-absorbing sheet for raising seedlings.

Example 1
The used paper diaper was dried in a hot air dryer. 72 g of disposable diapers before use was 353 g after use and 151 g after drying. 1000 sheets of dried paper diapers (approx. 150 kg) after use are boiled in a rotary scraper, spread the paper diapers after use, and screened with a 30 mm mesh vibrating screen while removing the wrapped solid excrement. It was. The portion on the sieve was pulverized to a particle size of 10 mm by a coarse pulverizer. The pulverized product was sieved with a vibration sieve having a mesh size of 5 mm. This sieved portion is classified by an air classifier, and (1) crushed particles rich in plastic materials (so-called polycas: mainly containing polypropylene resin, polyethylene resin and polyethylene terephthalate resin, and in addition to these, powdered pulp It was divided into fluff pulp of powdered pulp material containing high water-absorbing resin as a contaminating component (containing fluff, high water-absorbing resin and water-absorbing paper). These were each separately wet-classified, divided into raw fluff pulp, superabsorbent resin and polycus, and each was dried to a moisture content of 10% by weight or less. Cat sand was produced using the recovered dried material. There was no problem and there was no hindrance to use as cat sand.
Example 2

Manufacture of cat sand from recovered material In the core part, 77 parts by weight of recovered crushed polycus particles with a particle size of 3 mm or less and 3 parts by weight of recovered superabsorbent resin are mixed. Extrusion granulation was performed with a die hole diameter of 4 mm using a disk pelleter manufactured by Co., Ltd. Water is sprayed on the surface of the obtained granulated material, the coating material mixture is sprayed on the surface of the granulated material, the coating material mixture is adhered to the surface of the granulated material, and the moisture content is then reduced by a dryer. It dried until it became 10 weight% or less, and formed the coating layer of the coating material mixture on the granulated surface. The dried coated granular material is sieved by a circular sieving apparatus in which a circular sieve having an opening of 10 mm is arranged in the upper stage and a circular sieve having an opening of 4 mm is arranged in the lower stage, and the coated granules having a particle size on a 10 mm sieve. The coated granule having a particle size of 4 mm under the sieve was removed to adjust the product particle size of the coated granule. This coated granular material had no problem with odor, had no hindrance in indoor use, and cats could be used without problems as cat sand.
In this example, the coating material mixture is composed of 12 parts by weight of the recovered fluff pulp particles having a particle size of 3 mm or less, 3 parts by weight of the recovered superabsorbent resin having a particle size of 30 μm or less, and 30 μm or less. A superabsorbent resin (Himosub 1100: trade name, manufactured by Himosub Co., Ltd.) was mixed to prepare 5 parts by weight.

Example 3
The used paper diaper was dried in a hot air dryer. 72 g of disposable diapers before use was 349 g after use and 146 g after drying. 1000 sheets of dried paper diapers (about 145kg) after use are boiled in a rotary scraper, spread the paper diapers after use, and screened with a 30mm mesh vibrating sieve while removing the wrapped solid excrement It was. The portion on the sieve was pulverized to a particle size of 10 mm by a coarse pulverizer. The pulverized product was sieved with a vibration sieve having a mesh size of 5 mm. This sieved portion is classified by an air classifier, and (1) crushed particles rich in plastic materials (so-called polycas: mainly containing polypropylene resin, polyethylene resin and polyethylene terephthalate resin, and in addition to these, powdered pulp It was divided into fluff pulp of powdered pulp material containing high water-absorbing resin as a contaminating component (containing fluff, high water-absorbing resin and water-absorbing paper). These were each separately wet-classified, divided into raw fluff pulp, superabsorbent resin and polycus, and each was dried to a moisture content of 10% by weight or less. The recovered dry material was used to produce animal sheets, with regard to water absorption capacity and odor. There was no problem and there was no hindrance to use as a pet sheet.

Example 4
Manufacture of animal sheets In order to form a water-absorbing layer on the water-absorbing paper 16 g / m ² , 20 g of recovered fluff pulp crushed particles having a particle size of 3 mm or less were recovered and high water-absorbing capacity. A mixture with 3 g of resin was placed, and color paper 16 g / m ² was placed thereon, and then integrally molded by pressure to form an absorber. This absorber is placed on a polyethylene film with a thickness of 20 μm on a width of 300 mm and a length of 450 mm, and a polypropylene film with a width of 300 mm and a length of 450 mm is placed on the absorber, and the periphery of the polyethylene film and the polypropylene film is melt-melted. By bonding, a sheet of animal sheets, ie, a pet sheet, 300 mm wide and 450 mm long was manufactured.
This animal sheet had no problem with odor, had no problem for indoor use, and was tested for use in dogs.

In the present invention, the sanitary article to which dirt is attached is heated to a temperature of 80 ° C. or more, and the sanitary article to which the dirt is attached is dried to facilitate separation of the dirt. The sanitary product is sieved under forced vibration, a part of the dried soil is separated from the sanitary product, the material is disinfected from the sanitary product to which the soil adheres, and the product is cleaned and cleaned. The sanitary goods are collected and used effectively, and dirty sanitary goods that have been disposed of in the past can be effectively used as raw materials for sanitary goods, horticulture and agricultural supplies. In addition, conventionally, it is possible to reduce costs by exclusively utilizing costs required for disposal for the production of effective raw materials, and it is possible to effectively use resources and avoid waste of resources as much as possible.
Moreover, the present invention hygienically collects a huge amount of used sanitary articles such as used diapers, and the amount of processing is enormous, enabling the creation of new industries and contributing greatly to society. To do.

It is process drawing which shows the outline of the process of a dirty paper diaper of one Example of this invention. It is a general | schematic process drawing of the rinse process of the paper diaper raw material in the process of the paper diaper of one Example of this invention. It is process drawing which shows the outline of the process of the dirty paper diaper of other one Example of this invention different from the Example of FIG. It is explanatory drawing which shows the outline of a wet classification process about the processing product in the processing process of a paper diaper.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Hot-air dryer 2 Upper part of hot-air dryer 1 3 Supply port of hot-air dryer 1 4 Exhaust port of hot-air dryer 1 5 Lower part of hot-air dryer 1 6 Hot-air inlet of hot-air dryer 1 7 Drying of hot-air dryer 1 Material discharge port 8 Net conveyor 9 Sieving device 10 Introducing path 11 of the sieving device 9 Vibrating sieve 12 of the sieving device 9 Discharge port 13 of the sieving device 9 Discharge port 14 above the sieving device 9 Device 15 Crushed material outlet 16 of crushing device 14 Sieving device 17 Sieve 18 of sieving device 16 having 30 mm sieve opening 19 Sieve of sieving device 16 having 10 mm sieve opening 19 Screen of sieving device 16 A sieve 20 having an opening of 5 mm A crushed particle 21 having a particle size of 30 mm or more of the sieving device 16 A sieving outlet 22 at the uppermost stage of the sieving device 16 A crushed particle 23 having a particle size of 30 to 10 mm of the sieving device 16 The sieving outlet 24 of the intermediate stage of the device 16 The crushed particles 25 having a particle size of 10 to 5 mm or more of the sieving device 16 The sieving outlet 26 of the lowermost stage of the sieving device 16 The inlet 27 of the classifying device 27 The classifying device 28 Plastic material Crushed particles 29 rich in plastic material First sorting chamber 30 for sorting crushed particles 28 rich in plastic material crushed particles 31 rich in pulp material Second sorting chamber 32 for sorting crushed particles 30 rich in pulp material Rinsing step 33 Supply Hoppers 34, 47 and 59 Belt conveyor device 35 Discharge end 36 of belt conveyor device 34 First rinse baths 37 and 49 Arrows 38 and 50 Perforated plates 39 and 51 Rinsing liquid suppliers 40 and 52 Stirrers 41 and 53 Rinsing Liquid discharge port 42 First paper diaper material crushed material particle scraping device 43 and 55 Partition plate 44 Second rinse washing tank 45 Discharge side End part 46 Hopper 48 for supplying crushed particles to the second rinsing washing tank 44 Discharge end 54 Second diaper material crushed particle collecting device 56 and 75 Centrifugal dehydrator 57 Second paper diaper material crushed particle collecting device 54 Discharge-side end 58 Dispersion of disposable diaper material particles to centrifugal dewatering device 56 Discharge-side end 61 of belt conveyor device 59 Supply port 62 of centrifugal dewatering device 56 Arrow 63 Drain pipe 64 of separated waste water Dehydrated Belt conveyor device 65 for conveying diaper material crushed particles 65 Blower dryer 66 Entrance portion 67 of blast dryer 65 Dried diaper material crushed particles 68 Dry matter outlets 69 and 70 of blast dryer 65 Rinsing liquid discharge pipe 71 Rinsing waste liquid discharge line 72 Vibrating sieve device 73 0.5 mm vibrating sieve 74 Vertical conveyor device 76 Belt conveyor device 7 Blowing and drying device 78 Outlet 79 Rinse waste liquid pipe 80 Sedimentation tanks 81 and 83 Pipe 82 Activated carbon adsorption device 84 Activated sludge treatment device 85 Treated water 86 Discharge pipes 87 and 87 Rinse waste liquid pipe 89 Paper diaper opening device 90 Introduction path 91 to the paper diaper opening device 89 Cylindrical member 92 Paper diaper scratching bar member 93 Cylindrical net member 94 Paper diaper scratching device 95 Discharge port 96 of the paper diaper scratching device 94 Crushed material rich in water-absorbing resin 97 Crushing rich in water-absorbing resin The second sorting chamber 98 for sorting the product particles 96 The crushed particles rich in the pulp material 99 The third sorting chamber 100 for sorting the crushed particles 98 rich in the pulp material Wet classifier 101 The main part of the inverted conical part of the wet classifier 100 102 Overflow part 103 of wet classifier 100 Settling part 104 of wet classifier 100 Wet classifier 00 upper central portion mainly water suspension 112 valve containing water suspension 111 water-absorbent resin introduction port 108 the water supply pipe 109 of water 110 pulp material of the guide tube 105 mixing device 106 supplying pipe 107 mixing device 105 mainly containing the

Claims (20)

The sanitary product with dirt was heated to a temperature of 80 ° C. or higher, the sanitary product with dirt was dried, and the dried sanitary product was sieved under forced vibration and dried. A method for recovering a sanitary product, wherein a part of the dirt is separated from the sanitary product, and the part of the soil is removed from the sanitary product to which the dirt is attached. The dried sanitary ware is scratched, and the sanitary ware is unsealed and sieved with a sieve under forced vibration. Material recovery method. 2. The method for recovering a material from a sanitary article with dirt according to claim 1, wherein the sanitary article to which the dried dirt is attached has a water content of 10% by weight or less. The dirty sanitary product is a dirty paper diaper, a dirty milk pad, a dirty urine pad, a dirty sheet, a dirty gauze, a dirty bandage or dirty absorbent cotton, or two or more dirty hygiene items A method for recovering the material from the sanitary product to which dirt is attached according to claim 1. The sanitary goods to which dirt is attached are used paper diapers, used milk pads, used urine pads, used sheets, used gauze, used bandages or used absorbent cotton, or two or more used sanitary goods. The method for recovering a material from sanitary goods to which dirt is attached according to claim 1. 2. The sanitary article recovered from the sanitary article to which dirt is attached has dead E. coli attached thereto. Collection method. Pulp material and water-absorbing resin collected from sanitary goods with dirt attached, including dead Escherichia coli and a bactericidal substance between the first and second absorbent paper layers and having a moisture content of 10% by weight or less And a water-absorbing mixed layer portion containing paper dust. Pulp material recovered from sanitary goods with dirt adhered to the first and second absorbent paper layers, with dead E. coli and a bactericidal substance attached, and a moisture content of 10% by weight or less, water absorption An absorbent body comprising a water-absorbing mixed layer portion containing resin, paper powder, and plastic material. The upper water-permeable layer portion, the bottom-side water-impermeable membrane layer portion, the first water-absorbent paper layer portion disposed below the water-permeable layer portion, and the bottom-side impermeable membrane layer portion. Two water-absorbing paper layers are provided, and between the first and second water-absorbing paper layer portions, containing dead Escherichia coli and a substance having a bactericidal action and having a moisture content of 10% by weight or less, dirt is adhered. A sheet comprising a water-absorbing mixed layer containing pulp material, water-absorbing resin and paper powder collected from sanitary goods. The upper water-permeable layer portion, the bottom-side water-impermeable membrane layer portion, the first water-absorbent paper layer portion disposed below the water-permeable layer portion, and the bottom-side impermeable membrane layer portion. Two water-absorbing paper layers are provided, and between the first and second water-absorbing paper layer portions, containing dead Escherichia coli and a substance having a bactericidal action and having a moisture content of 10% by weight or less, dirt is adhered. A sheet comprising a water-absorbing mixed layer containing pulp material, water-absorbing resin, paper powder, and plastic material collected from a sanitary product. Contains pulp material, water-absorbing resin, and paper powder that are turned from sanitary goods with dirt, containing dead E. coli and bactericidal substances, and having a moisture content of 10% by weight or less. The excrement disposal material characterized by being. Contains pulp material, water-absorbent resin, paper powder and plastic material collected from sanitary goods with dirt, containing dead E. coli and bactericidal substances, and having a moisture content of 10% by weight or less An excrement disposal material characterized by being formed. Contains pulp material, water-absorbing resin, and paper powder that are turned from sanitary goods with dirt, containing dead E. coli and bactericidal substances, and having a moisture content of 10% by weight or less. An excrement treatment material comprising: a core portion comprising a core portion, and a covering portion including a mixture of paper powder and a water-absorbing resin covering the core material. Contains pulp material, water-absorbent resin, paper powder and plastic material collected from sanitary goods with dirt, containing dead E. coli and bactericidal substances, and having a moisture content of 10% by weight or less An excrement treatment material comprising: a formed core portion; and a covering portion including a mixture of paper powder and a water-absorbing resin that covers the core material. A first water-absorbing paper layer part forming an inner surface and a second water-absorbing paper layer part forming an outer surface, and further, killed Escherichia coli and bactericidal action between the first and second water-absorbing paper layer parts A side part and a bottom part are formed by a plate member comprising a water-absorbing mixed layer part mainly containing a plastic material recovered from sanitary goods with dirt attached and having a moisture content of 10% by weight or less. A flowerpot characterized by being made. A first water-absorbing paper layer part forming an inner surface and a second water-absorbing paper layer part forming an outer surface, and further, killed Escherichia coli and bactericidal action between the first and second water-absorbing paper layer parts Mainly containing a plastic material collected from sanitary goods to which dirt is attached, having a moisture content of 10% by weight or less, and dirt is attached at a lower content than the plastic material. A flower pot, wherein a side part and a bottom part are formed by a plate member comprising a pulp material collected from a sanitary product, a water absorbent resin and a water absorbent mixed layer part containing paper powder. A first water-absorbing paper layer portion forming an inner surface, a water-impermeable thin layer portion forming an outer surface and having air permeability, and a second water-absorbing paper layer disposed in contact with the water-impermeable thin layer portion And a sanitary article in which dirt is attached between the first and second water-absorbent paper layers, including dead Escherichia coli and a substance having a bactericidal action, and having a water content of 10% by weight or less. A flower pot, wherein a side part and a bottom part are formed by a plate member provided with a water-absorbing mixed layer part mainly containing a plastic material recovered from. A first water-absorbing paper layer portion forming an inner surface, a water-impermeable thin layer portion forming an outer surface and having air permeability, and a second water-absorbing paper layer disposed in contact with the water-impermeable thin layer portion And a sanitary article in which dirt is attached between the first and second water-absorbent paper layers, including dead Escherichia coli and a substance having a bactericidal action, and having a water content of 10% by weight or less. Water-absorbing mixed layer part containing pulp material, water-absorbing resin and paper powder collected mainly from sanitary goods with a content less than that of the plastic material, and with a smaller content than the plastic material. The flower pot characterized by the side part and the bottom part being formed of the plate member provided with. A water-permeable thin layer portion that forms the inner surface, a water-impermeable thin layer portion that forms the outer surface, a first water-absorbent paper layer portion disposed on the back side in contact with the water-permeable thin layer portion, A second water-absorbing paper layer disposed on the back side in contact with the water-impermeable thin layer portion, disposed between the first and second water-absorbing paper layer portions, killed Escherichia coli and bactericidal action A side part and a bottom part are formed by a plate member comprising a water-absorbing mixed layer part mainly containing a plastic material recovered from sanitary goods having a moisture content of 10% by weight or less and containing dirt. A flowerpot characterized by being made. A water-permeable thin layer portion that forms the inner surface, a water-impermeable thin layer portion that forms the outer surface, a first water-absorbent paper layer portion disposed on the back side in contact with the water-permeable thin layer portion, A second water-absorbing paper layer disposed on the back side in contact with the water-impermeable thin layer portion, disposed between the first and second water-absorbing paper layer portions, killed Escherichia coli and bactericidal action It contains mainly a plastic material recovered from sanitary goods with a moisture content of 10% by weight or less and a dirt attached, and the dirt is attached at a lower content than the plastic material. The side part and the bottom part are formed by a plate member that is integrally formed with a pulp material, a water absorbent resin and a water absorbent mixed layer part containing paper dust collected from sanitary goods, and is formed as a whole. A flowerpot characterized by that.

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