CN115228894A - Device and method for treating medical waste by using microwaves and high-pressure ethanol - Google Patents
Device and method for treating medical waste by using microwaves and high-pressure ethanol Download PDFInfo
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- CN115228894A CN115228894A CN202210652220.7A CN202210652220A CN115228894A CN 115228894 A CN115228894 A CN 115228894A CN 202210652220 A CN202210652220 A CN 202210652220A CN 115228894 A CN115228894 A CN 115228894A
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- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 title claims abstract description 330
- 239000002906 medical waste Substances 0.000 title claims abstract description 69
- 238000000034 method Methods 0.000 title claims abstract description 23
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 32
- 238000011084 recovery Methods 0.000 claims abstract description 14
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 13
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 12
- 230000009471 action Effects 0.000 claims abstract description 9
- 239000012530 fluid Substances 0.000 claims description 49
- 239000000463 material Substances 0.000 claims description 16
- 238000003756 stirring Methods 0.000 claims description 14
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 230000005484 gravity Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 12
- 230000008569 process Effects 0.000 abstract description 8
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 abstract description 3
- 231100000331 toxic Toxicity 0.000 abstract description 3
- 230000002588 toxic effect Effects 0.000 abstract description 3
- 239000002131 composite material Substances 0.000 abstract description 2
- 239000007789 gas Substances 0.000 abstract description 2
- 239000000126 substance Substances 0.000 description 5
- 238000007599 discharging Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 2
- 244000052616 bacterial pathogen Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010000 carbonizing Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 230000002458 infectious effect Effects 0.000 description 1
- 230000005541 medical transmission Effects 0.000 description 1
- 244000000010 microbial pathogen Species 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000009715 pressure infiltration Methods 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/30—Destroying solid waste or transforming solid waste into something useful or harmless involving mechanical treatment
- B09B3/35—Shredding, crushing or cutting
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L11/00—Methods specially adapted for refuse
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
- A61L2/08—Radiation
- A61L2/12—Microwaves
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/16—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
- A61L2/18—Liquid substances or solutions comprising solids or dissolved gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B2101/00—Type of solid waste
- B09B2101/65—Medical waste
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- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
Abstract
The invention discloses a device and a method for treating medical wastes by microwave and high-pressure ethanol, which comprises a storage bin, a crushing machine, a microwave bin, a high-pressure ethanol bin, an ethanol pump, a nitrogen tank, an ethanol storage tank and an ethanol recovery tank, wherein the storage bin, the crushing machine, the microwave bin and the high-pressure ethanol bin are sequentially arranged from top to bottom, the nitrogen tank is arranged on one side of the high-pressure ethanol bin, the ethanol storage tank and the ethanol recovery tank are arranged on the other side of the high-pressure ethanol bin, and pipelines are respectively arranged between the high-pressure ethanol bin and the nitrogen tank, between the high-pressure ethanol bin and the ethanol storage tank, and between the high-pressure ethanol bin and the ethanol recovery tank. Has the advantages that: the invention has more stable disinfection effect through the composite action of the microwave and the high-pressure ethanol; the disinfection time is shortened by more than 50%, and the disinfection efficiency is improved by times; meanwhile, as the ethanol can be recycled and combined with the microwave effect in a shorter time, the energy-saving effect is more obvious; meanwhile, toxic and harmful gases such as dioxin and the like are not generated in the disposal process, so that the environment-friendly effect is remarkable.
Description
Technical Field
The invention relates to the technical field of medical waste treatment, in particular to a device and a method for treating medical waste by using microwave and high-pressure ethanol.
Background
Medical waste refers to waste products of direct or indirect infectious, toxic, and other hazardous nature that are generated by health care facilities in medical, preventive, health care, and other related activities. Medical waste may contain a large amount of pathogenic microorganisms and harmful chemical substances, even radioactive and damaging substances, and thus, if the medical waste is not treated properly, sanitary and environmental problems such as disease transmission, water pollution and the like may be caused. Therefore, china promulgates 'medical waste management regulations' to carry out definite standardized management on the collection, classification, storage, transportation, disposal and supervision of medical waste. Regulations specifically stipulate that medical waste is collected and classified by medical institutions, and that centralized treatment centers are established from various places to transport and centrally treat the medical waste.
The treatment technologies adopted by various medical waste treatment centers at present are mainly an incineration method (accounting for 50%) and a high-temperature steam method (accounting for 44%). The incineration method is a process of decomposing and carbonizing medical waste by using a high-temperature oxidation method. The incineration method can reduce the volume of medical wastes to a great extent, has high treatment efficiency and is widely adopted by various centralized treatment centers. However, because the medical waste has complicated components, the existing incineration process directly incinerates the crushed medical waste particles, harmful substances are easily generated in the incineration process due to insufficient incineration or the characteristics of the medical waste, and the harmful substances are discharged into the air along with the waste gas to generate secondary pollution to the surrounding environment, such as dioxin and the like.
In recent years, high-temperature steam treatment of medical wastes is gradually popularized and applied. The high-temperature steam method is a process for sterilizing medical wastes at high temperature by using high-temperature steam, and the sterilized medical wastes are treated as household garbage. Although the high-temperature steam process can treat medical wastes in batches, the process generates more complex chemical substances and odor emission, and has great influence on the surrounding environment.
Some microwave treatment stations have also been applied, the microwave disinfection is to make the microorganism in the medical waste produce variation by the combined action of microwave thermal effect and non-thermal effect, so the growth and development of the microorganism is delayed and death is caused, and the disinfection purpose is achieved, because the general disinfection temperature of the microwave is 75-105 ℃, the effect can be achieved, and the energy consumption is relatively less. However, because microwave heating is selective, even in the same microwave field, different medical waste materials have temperature rise difference, and high temperature and long enough time (generally more than 45 minutes) are still required for killing germs, which is not particularly ideal in the aspects of working efficiency, energy conservation and environmental protection.
An effective solution to the problems in the related art has not been proposed yet.
Disclosure of Invention
The present invention has been made in an effort to solve the above-mentioned problems occurring in the background art, and an object of the present invention is to provide an apparatus and method for treating medical waste with microwave and high pressure ethanol.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a device of microwave and high pressure ethanol processing medical waste, includes feed bin, crushing machine, microwave storehouse, high pressure ethanol storehouse, alcohol pump, nitrogen gas jar, alcohol storage tank and alcohol recovery tank, feed bin, crushing machine, microwave storehouse and high pressure ethanol storehouse from the top down set gradually, the nitrogen gas jar sets up in high pressure ethanol storehouse one side, alcohol storage tank and alcohol recovery tank set up at high pressure ethanol storehouse opposite side, all be provided with the pipeline between high pressure ethanol storehouse and the nitrogen gas jar, between high pressure ethanol storehouse and the alcohol storage tank, install the alcohol pump on the pipeline between high pressure ethanol storehouse and the alcohol storage tank.
Further, feed bin bottom and crushing machinery intercommunication, crushing machinery bottom is connected with broken funnel, broken funnel is connected with the microwave storehouse through the first airtight valve that sets up.
The microwave drying device is characterized in that the bottom of the microwave bin is connected with the high-pressure ethanol bin through a second closed valve, a third closed valve is arranged at the bottom of the high-pressure ethanol bin, and a discharge hole is connected to the bottom of the third closed valve.
Further, the microwave bin is characterized in that microwave generators are fixed on two sides outside the microwave bin through bolts, and a first stirring rod and a second stirring rod are mounted on the microwave bin and the high-pressure ethanol bin in the oblique directions through bolts respectively.
Further, the device is characterized in that an emptying valve, a pressure gauge and a first fluid valve are sequentially arranged on a pipeline between the high-pressure ethanol bin and the nitrogen tank from right to left.
Furthermore, a second fluid valve and a third fluid valve are respectively arranged on pipelines positioned between the high-pressure ethanol bin and the ethanol storage tank and positioned on two sides of the ethanol pump.
Further, a fourth fluid valve is arranged on a pipeline between the high-pressure ethanol bin and the ethanol recovery tank.
According to another aspect of the present invention, a method of microwave and high pressure ethanol treatment of medical waste comprises the steps of:
(a) The medical waste materials enter the storage bin, then enter the crushing machine by virtue of gravity, are cut into medical waste crushed materials with the maximum size not exceeding 50mm in the crushing machine, and after the medical waste crushed materials fall into the crushed material hopper, the first sealing valve is opened, the second sealing valve is closed, and the medical waste crushed materials continue to fall into the microwave bin;
(b) After the microwave bin is filled with the medical waste crushed aggregates, closing the first airtight valve, starting the microwave generator, performing microwave disinfection treatment on the medical waste crushed aggregates in the microwave bin, stopping the microwave generator after 10 minutes, closing the third airtight valve, opening the second airtight valve, closing the first fluid valve, the second fluid valve, the third fluid valve and the fourth fluid valve, and allowing the medical waste crushed aggregates in the microwave bin to fall into the ethanol bin under the auxiliary action of the first stirring rod;
(c) After the ethanol bin is filled with the medical waste crushed aggregates, closing the second closed valve, opening the vent valve, the second fluid valve and the third fluid valve, starting an ethanol pump, conveying the ethanol in the ethanol storage tank to the ethanol bin, after the ethanol bin is filled with the ethanol, stopping the ethanol pump, closing the vent valve, the second fluid valve and the third fluid valve, opening the first fluid valve, filling high-pressure nitrogen into the ethanol bin, and observing the pressure value of the pressure gauge;
(d) And when the pressure in the ethanol bin reaches 0.3MPa, closing the first fluid valve, performing high-pressure infiltration on the medical waste crushed aggregates in the ethanol bin by using ethanol, opening the fourth fluid valve after 10 minutes, enabling the ethanol in the ethanol bin to flow into the ethanol recovery tank, discharging the ethanol in the ethanol bin, opening the third closed valve, and discharging the medical waste crushed aggregates at the discharge port under the auxiliary action of the second stirring rod.
Compared with the prior art, the invention has the following beneficial effects: the invention has more stable disinfection effect through the composite action of the microwave and the high-pressure ethanol; the disinfection time is shortened by more than 50%, and the disinfection efficiency is improved by times; meanwhile, as the ethanol can be recycled and combined with the microwave effect in a shorter time, the energy-saving effect is more obvious; meanwhile, toxic and harmful gases such as dioxin and the like are not generated in the disposal process, so that the environment-friendly effect is remarkable.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic diagram of an apparatus for microwave and high pressure ethanol treatment of medical waste according to an embodiment of the present invention;
FIG. 2 is a schematic flow diagram of a method for microwave and high pressure ethanol treatment of medical waste, according to an embodiment of the present invention.
Reference numerals are as follows:
1. a storage bin; 2. a crushing machine; 3. a crushed aggregate hopper; 4. a first airtight valve; 5. a microwave bin; 6. a microwave generator; 7. a second airtight valve; 8. an atmospheric valve; 9. a pressure gauge; 10. a first fluid valve; 11. a high-pressure ethanol bin; 12. a third airtight valve; 13. a discharge port; 14. a first stirring rod; 15. a second stirring rod; 16. a second fluid valve; 17. an ethanol pump; 18. a third fluid valve; 19. a fourth fluid valve; 101. a nitrogen tank; 102. an ethanol storage tank; 103. an ethanol recovery tank.
Detailed Description
The invention is further described with reference to the following drawings and detailed description:
referring to fig. 1, the device for processing medical waste by using microwave and high-pressure ethanol according to the embodiment of the invention comprises a storage bin 1, a crushing machine 2, a microwave bin 5, a high-pressure ethanol bin 11, an ethanol pump 17, a nitrogen tank 101, an ethanol storage tank 102 and an ethanol recovery tank 103, wherein the storage bin 1, the crushing machine 2, the microwave bin 5 and the high-pressure ethanol bin 11 are sequentially arranged from top to bottom, the nitrogen tank 101 is arranged on one side of the high-pressure ethanol bin 11, the ethanol storage tank 102 and the ethanol recovery tank 103 are arranged on the other side of the high-pressure ethanol bin 11, pipelines are arranged between the high-pressure ethanol bin 11 and the nitrogen tank 101, between the high-pressure ethanol bin 11 and the ethanol storage tank 102, and the ethanol pump 17 is arranged on the pipeline between the high-pressure ethanol bin 11 and the ethanol storage tank 102.
According to the scheme of the invention, the bottom of the storage bin 1 is communicated with the crushing machine 2, the bottom of the crushing machine 2 is connected with the crushing funnel 3, the crushing funnel 3 is connected with the microwave bin 5 through the arranged first airtight valve 4, the bottom of the microwave bin 5 is connected with the high-pressure ethanol bin 11 through the arranged second airtight valve 7, the bottom of the high-pressure ethanol bin 11 is provided with the third airtight valve 12, the bottom of the third airtight valve 12 is connected with the discharge port 13, the two outer sides of the microwave bin 5 are both fixed with the microwave generator 6 through bolts, the first stirring rod 14 and the second stirring rod 15 are respectively installed on the microwave bin 5 and the high-pressure ethanol bin 11 through bolts in the oblique direction, the vent valve 8, the pressure gauge 9 and the first fluid valve 10 are sequentially arranged on the pipeline between the high-pressure ethanol bin 11 and the nitrogen tank 101 from right to left, the second fluid valve 16 and the third fluid valve 18 are respectively arranged on the pipeline between the high-pressure ethanol bin 11 and the ethanol storage tank 102 and on the two sides of the ethanol pump 17, and the fourth fluid valve 19 is arranged on the pipeline between the high-pressure ethanol bin 11 and the ethanol recovery tank 103.
Referring to fig. 2, according to another aspect of the present invention, a method for microwave and high pressure ethanol treatment of medical waste comprises the steps of:
(a) The medical waste material enters the storage bin 1, then enters the crushing machine 2 by virtue of gravity, is crushed into medical waste crushed materials with the maximum size not exceeding 50mm in the crushing machine 2, and after the medical waste crushed materials fall into the crushed material hopper 3, the first sealed valve 4 is opened, the second sealed valve 7 is closed, and the medical waste crushed materials continue to fall into the microwave bin 5;
(b) After the microwave bin 5 is filled with the medical waste crushed aggregates, closing the first airtight valve 4, starting the microwave generator 6, performing microwave sterilization treatment on the medical waste crushed aggregates in the microwave bin 5, stopping the microwave generator 6 after 10 minutes, closing the third airtight valve 12, opening the second airtight valve 7, closing the first fluid valve 10, the second fluid valve 16, the third fluid valve 18 and the fourth fluid valve 19, and allowing the medical waste crushed aggregates in the microwave bin 5 to fall into the ethanol bin 11 under the auxiliary action of the first stirring rod 14;
(c) After the ethanol bin 11 is filled with the medical waste crushed aggregates, closing the second airtight valve 7, opening the emptying valve 8, the second fluid valve 16 and the third fluid valve 18, starting the ethanol pump 17, conveying the ethanol in the ethanol storage tank 102 to the ethanol bin 11, stopping the ethanol pump 17 after the ethanol bin 11 is filled with the ethanol, closing the emptying valve 8, the second fluid valve 16 and the third fluid valve 18, opening the first fluid valve 10, filling high-pressure nitrogen into the ethanol bin 11, and observing the pressure value of the pressure gauge 6;
(d) When the pressure in the ethanol bin 11 reaches 0.3MPa, closing the first fluid valve 10, soaking medical waste crushed aggregates in the ethanol bin 11 at high pressure by using ethanol, opening the fourth fluid valve 19 after 10 minutes, enabling the ethanol in the ethanol bin 11 to flow into the ethanol recovery tank 103, discharging the ethanol in the ethanol bin 11, opening the third closed valve 12, and discharging the medical waste crushed aggregates at the discharge hole 13 under the auxiliary action of the second stirring rod 15.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described above, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a device of microwave and high pressure ethanol processing medical waste, its characterized in that, includes feed bin (1), broken machinery (2), microwave storehouse (5), high pressure ethanol storehouse (11), ethanol pump (17), nitrogen gas jar (101), ethanol storage tank (102) and ethanol accumulator (103), feed bin (1), broken machinery (2), microwave storehouse (5) and high pressure ethanol storehouse (11) from the top down set gradually, nitrogen gas jar (101) set up in high pressure ethanol storehouse (11) one side, ethanol storage tank (102) and ethanol accumulator (103) set up at high pressure ethanol storehouse (11) opposite side, between high pressure ethanol storehouse (11) and nitrogen gas jar (101), between high pressure ethanol storehouse (11) and ethanol storage tank (102), all be provided with the pipeline between high pressure ethanol storehouse (11) and the ethanol accumulator (103), install ethanol pump (17) on the pipeline between high pressure ethanol storehouse (11) and the ethanol storage tank (102).
2. The device for microwave and high-pressure ethanol treatment of medical waste according to claim 1, characterized in that the bottom of the silo (1) is communicated with a crushing machine (2), the bottom of the crushing machine (2) is connected with a crushing funnel (3), and the crushing funnel (3) is connected with a microwave silo (5) through a first sealing valve (4).
3. The device for microwave and high-pressure ethanol treatment of medical waste according to claim 2, wherein the bottom of the microwave bin (5) is connected with the high-pressure ethanol bin (11) through a second sealing valve (7), a third sealing valve (12) is arranged at the bottom of the high-pressure ethanol bin (11), and a discharge hole (13) is connected at the bottom of the third sealing valve (12).
4. The device for microwave and high-pressure ethanol treatment of medical waste according to claim 3, wherein the microwave generator (6) is fixed on both sides of the microwave bin (5) through bolts, and the first stirring rod (14) and the second stirring rod (15) are respectively installed on the microwave bin (5) and the high-pressure ethanol bin (11) through bolts in the oblique direction.
5. The apparatus for microwave and high-pressure ethanol treatment of medical waste according to claim 1, wherein a blow valve (8), a pressure gauge (9) and a first fluid valve (10) are sequentially arranged on the pipeline between the high-pressure ethanol bin (11) and the nitrogen tank (101) from right to left.
6. The apparatus for microwave and high-pressure ethanol treatment of medical waste according to claim 1, wherein the second fluid valve (16) and the third fluid valve (18) are respectively arranged on the pipelines between the high-pressure ethanol bin (11) and the ethanol storage tank (102) and positioned at two sides of the ethanol pump (17).
7. The apparatus for microwave and high-pressure ethanol treatment of medical waste according to claim 1, wherein a fourth fluid valve (19) is arranged on a pipeline between the high-pressure ethanol bin (11) and the ethanol recovery tank (103).
8. A method of microwave and high pressure ethanol treatment of medical waste, comprising the steps of:
(a) The medical waste material enters the storage bin (1), then enters the crushing machine (2) by virtue of gravity, is cut into medical waste crushed materials with the maximum size not exceeding 50mm in the crushing machine (2), and after the medical waste crushed materials fall into the crushed material hopper (3), the first sealed valve (4) is opened, the second sealed valve (7) is closed, and the medical waste crushed materials continue to fall into the microwave bin (5);
(b) After the microwave bin (5) is filled with medical waste crushed aggregates, the first airtight valve (4) is closed, the microwave generator (6) is started, microwave disinfection treatment is carried out on the medical waste crushed aggregates in the microwave bin (5), after 10 minutes, the microwave generator (6) stops running, the third airtight valve (12) is closed, the second airtight valve (7) is opened, the first fluid valve (10), the second fluid valve (16), the third fluid valve (18) and the fourth fluid valve (19) are closed, and the medical waste crushed aggregates in the microwave bin (5) fall into the ethanol bin (11) under the auxiliary action of the first stirring rod (14);
(c) After the ethanol bin (11) is filled with the medical waste crushed aggregates, closing the second sealed valve (7), opening the emptying valve (8), the second fluid valve (16) and the third fluid valve (18), starting the ethanol pump (17), sending the ethanol in the ethanol storage tank (102) to the ethanol bin (11), after the ethanol bin (11) is filled with the ethanol, stopping the ethanol pump (17), closing the emptying valve (8), the second fluid valve (16) and the third fluid valve (18), opening the first fluid valve (10), filling high-pressure nitrogen into the ethanol bin (11), and observing the pressure value of the pressure gauge (6);
(d) When the pressure in the ethanol bin (11) reaches 0.3MPa, the first fluid valve (10) is closed, the medical waste crushed aggregates in the ethanol bin (11) are soaked at high pressure by ethanol at the moment, after 10 minutes, the fourth fluid valve (19) is opened, the ethanol in the ethanol bin (11) flows into the ethanol recovery tank (103), after the ethanol in the ethanol bin (11) is completely discharged, the third sealed valve (12) is opened, and the medical waste crushed aggregates are discharged at the discharge port (13) under the auxiliary action of the second stirring rod (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210652220.7A CN115228894A (en) | 2022-06-10 | 2022-06-10 | Device and method for treating medical waste by using microwaves and high-pressure ethanol |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210652220.7A CN115228894A (en) | 2022-06-10 | 2022-06-10 | Device and method for treating medical waste by using microwaves and high-pressure ethanol |
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| CN115228894A true CN115228894A (en) | 2022-10-25 |
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