JP2006231178A - Wastes treatment apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wastes treatment apparatus consists of a multi-tank type treatment tanks by a partition plate wherein a deformation of the treatment tank does not occur even if a cheap and light plate type material is used, and cost lowering and weight diminishing can be carried out. <P>SOLUTION: The wastes treatment apparatus has a wastes treatment tank wherein the partition plate 11a, 11b is made to connect to the plate type material 36, 37, 38 with the section of nearly U shape forming the tank and the inside of the treatment tank is divided by the partition plate to form a plurality of tanks, and a stirring means is structured by arranging a plurality of stirring rods at a stirring shaft penetrating a plurality of tanks, respectively, wherein the plate type material with the section of nearly U shape and the partition plate have a locking part 36a, b, 37a, b, 38a, b which is locking each other at these joints, and the plurality of tanks are structured such that the plate type material with the section of nearly U shape is locked to fixed to the partition plate at the locking part. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a waste treatment apparatus, and more particularly to a waste treatment apparatus in which a multi-tank type treatment tank is configured by a partition plate.

In a conventional waste treatment apparatus, for example, as disclosed in Patent Document 1, the inside of a treatment tank is partitioned into a plurality of compartments by a partition plate, and organic waste that has been put into the compartment on the upstream side of the treatment tank The waste is overflowed to the downstream section and sequentially transferred, and the organic waste is fermented by aerobic bacteria under heating with stirring and heating means provided in the treatment tank, and composted. A device has been proposed.
JP-A-9-57235

However, the waste disposal apparatus of Patent Document 1 as the above-described conventional example has the following problems.
In this apparatus, a plurality of tanks are formed by joining a partition plate to a plate-shaped member having a substantially U-shaped cross section in the processing tank and partitioning the inside of the processing tank with the partition plate, A plurality of stirring rods are provided on the stirring shaft passing through the plurality of tanks. Under such a configuration, the U-shaped plate constituting the treatment tank is subjected to pressure in the circumferential direction of the stirring shaft as the processed product is stirred, so the side plate and the partition plate are connected to the U-shaped plate. There was a problem that the welded portion joined to the load was damaged, and in the worst case, the welded portion was damaged. In order to avoid these problems, if the plate thickness is increased in order to increase the strength of the side plate, the partition plate, and the U-shaped plate, there arises a problem that the cost increases or the product weight increases.

  Therefore, in view of the above problems, the present invention is a waste treatment apparatus in which a multi-tank processing tank is configured by a partition plate. Even if an inexpensive and lightweight plate-like member is used, the processing tank is not deformed and the cost is reduced. An object of the present invention is to provide a waste treatment apparatus that can reduce the weight.

In order to achieve the above object, the present invention provides a waste treatment apparatus configured as follows.
That is, the waste treatment apparatus of the present invention has a plurality of tanks by joining a partition plate to a plate-like member having a substantially U-shaped cross section constituting the treatment tank and partitioning the inside of the treatment tank with the partition plate. A waste treatment apparatus comprising: a waste treatment tank in which a plurality of stirring rods are provided on a stirring shaft that passes through each of the plurality of tanks; The plate-shaped member in the shape of a letter and the partition plate are provided with locking portions that lock each other at their joints, and the plurality of tanks have the plate-shaped member having a substantially U-shaped cross section as the locking portion. It is characterized by being configured to be locked and fixed to the partition plate.

  According to the present invention, in a waste treatment apparatus in which a multi-tank processing tank is configured by a partition plate, there is no deformation of the processing tank even if an inexpensive and lightweight plate-like member is used, thereby reducing costs and reducing weight. It is possible to realize a waste treatment apparatus that can be achieved.

With the above configuration, the object of the present invention can be achieved. However, in the embodiment of the present invention, the configuration of the treatment tank in the waste treatment apparatus can be specifically configured as follows.
The processing tank of the waste processing apparatus is partitioned by a partition plate formed of a metal material, and the inside of the processing tank formed of a U-shaped sheet metal having an arc portion having a substantially semicircular cross section is partitioned. It is configured to overflow from a plurality of upstream sides to downstream compartments. In addition, a plurality of stirring rods are provided on a stirring shaft that passes through each of the plurality of tanks and is rotatably mounted horizontally. Then, as a joining structure of the sheet metal having a substantially U-shaped cross section and the partition plate, a tongue-like convex portion is formed at a joint portion of the sheet metal having a substantially U-shaped cross section with the partition plate. A plate-like convex portion is inserted into and locked in a hole formed in the partition plate, and the latched portion is welded to fix the substantially U-shaped sheet metal to the partition plate metal. Configure.
In that case, the some tank divided by the said partition plate can be comprised with a thing with a curvature with a small curvature as the curvature of the said substantially U-shaped plate-shaped member goes downstream from an upstream.
Further, a stirring blade bent into a V shape may be disposed at the tip of a plurality of stirring rods provided on the stirring shaft, and the tip of the stirring blade bent into a V shape may be formed into a triangular shape. it can.
Further, it is possible to adopt a configuration in which a stirring blade bent in a mountain shape and having a substantially triangular shape is disposed at the tip of the stirring rod adjacent to the partition plate.

Examples of the present invention will be described below.
In this embodiment, the present invention is applied to configure a waste treatment apparatus including a multi-tank processing tank using a partition plate. However, the dimensions, materials, shapes, and relative arrangements of the following components described in this embodiment should be changed as appropriate according to the configuration of the apparatus to which the invention is applied and various conditions. It is not limited at all by the examples.

FIG. 1 shows a schematic perspective view of the configuration of the waste disposal apparatus of this embodiment.
FIG. 2 is a schematic cross-sectional view of the waste treatment apparatus as viewed from A in FIG. 1, and FIG. 3 is a schematic cross-sectional view of the waste treatment apparatus as viewed from B in FIG.
FIG. 4 shows a schematic perspective view of the waste disposal apparatus of this embodiment when the exterior cover is mounted.
FIG. 5 shows a cross-sectional view of the positions of the side plate and the partition plate of the waste disposal apparatus of this embodiment.
FIG. 6 shows a cross-sectional view of positions of the stirring shaft, the side plate, the partition plate, the stirring rod, and the stirring blade of the waste treatment apparatus of this embodiment.
FIG. 7 shows a schematic diagram of a treatment tank composed of a side plate, a partition plate and a U-shaped plate of the waste treatment apparatus of this embodiment.

In FIG. 1 to FIG. 7, reference numeral 1 denotes a drive motor that rotates forward and backward of a power source, 2 denotes a small sprocket fixed to the tip of the output shaft of the drive motor 1, and 3 denotes a chain that meshes with the small sprocket 2.
4 is a large sprocket that meshes with the chain 3, 5 is a stirring rod that stirs the waste, 6 is a stirring shaft that rotates the stirring rod 5, and 7 a and 7 b are bearings that support the stirring shaft 6. Is constituted by these members.
Reference numeral 8 denotes an exterior part as a frame covering the waste treatment apparatus, and 10 is a (waste) treatment tank provided in the exterior part 8 for treating waste. This processing tank 10 includes a processing tank side plate right 14 and a processing tank side plate left 15 as a pair of side walls provided opposite to each other, and U-shaped plates 36, 37, 38 horizontally disposed between the pair of side walls. And partition plates 11a and 11b for partitioning the processing tank 10 into a plurality of tanks.
A planar heater 9 as a heating means for heating the processing tank 10 is provided at the lower part of the processing tank 10. Reference numeral 12 is a base material for decomposing waste, and 13 is a moisture content sensor for detecting the state of decomposition treatment by the moisture content of the substrate.

16 is an exhaust fan that exhausts moisture and carbon dioxide generated by supplying oxygen and decomposing oxygen to microorganisms, 17 is an intake port for taking outside air into the treatment tank 10, and 18 is moisture and carbon dioxide generated in the treatment tank 10. This is an exhaust port for exhausting gas.
Reference numeral 19 denotes a magnet attached to the input lid 21 of the processing tank 10, reference numeral 20 denotes an input lid detection sensor for detecting a magnet attached to the input lid 21, reference numeral 21 denotes an input lid, and reference numeral 22 denotes an input port for introducing waste.
23 is a control unit for controlling the whole, 24 is a vent, 25 is a dust removing filter for removing dust generated from the inside of the processing tank 10, and 26 (26 a, 26 b, 26 c) communicates the exhaust port in the processing tank 10 with the outside air. It is an exhaust duct.
Reference numeral 27 denotes a deodorizing unit as deodorizing means for heating the odorous air generated from the treatment tank 10 by the catalyst heater 27a and deodorizing using the oxidation catalyst 27b, and 28 is a temperature sensor for detecting the outlet temperature of the deodorizing unit 27. is there.
Further, 29 is an outside air intake as an outside air intake provided on the side surface of the exterior portion 8, and 30 is disposed outside the exhaust duct 26 a provided in the treatment tank 10 and is used as a gas circulation passage in the treatment tank 10. It is the circulation duct which comprises.
31 is a gas suction port for sucking the odorous air in the treatment tank 10 into the circulation duct 30, 32 is a circulation fan for circulating the gas in the treatment tank 10, and 33 is a decomposition after the waste is treated in the treatment tank 10. This is an outlet for discharging the residue.
Reference numeral 34 denotes a V-shaped stirring blade attached to the tip of the stirring rod 5, and 35 denotes a chevron stirring blade attached to the tip of the stirring rod 5 adjacent to the side plates 14 and 15 and the partition plates 11a and 11b. .

Next, the operation and operation of the waste disposal apparatus configured as described above will be described.
The treatment tank 10 has a stirring shaft 6 that rotates forward and backward in the center, and a base material 12 is contained therein. The base material 12 is composed mainly of sawdust, which is hardly biodegradable, and each grain is porous, has water absorption and voids, has a complicated particle shape, and large voids are formed between the particles. Yes. Since the oxygen can be supplied to the treatment organism through the voids, the efficiency of the waste decomposition treatment is improved. In addition, the treatment organisms that decompose the waste in the mixture at this time are aerobic microorganisms and fungi.

Moreover, even if the base material 12 in the processing tank 10 is buckwheat husk other than sawdust, rice bran, etc., it can maintain a space | gap and can supply oxygen to a processing organism, Therefore It is suitable as the base material 12. .
Moreover, although the base material 12 uses the fiber sawdust which is hard to be biodegraded in the present embodiment, it may be a ceramic having a function capable of supplying oxygen to the treated organism while maintaining a void. Alternatively, even when the base material 12 using a processed product obtained by treating only garbage with a waste processing apparatus as a seed base material is used, the base organism 12 is already living or dormant in the active state. It is suitable as.

When the input lid 21 of the waste disposal apparatus in operation is opened, the input lid open / close detection sensor 20 that has detected the magnet 19 of the input lid 21 determines that the input lid 21 has been opened, and is driven in the stirring state. Motor 1 stops.
Here, the closing lid opening / closing detection means including the magnet 19 attached to the closing lid 21 and the closing lid opening / closing detection sensor 20 is composed of a magnetic sensor that reacts to magnetism attached to the processing tank 10. Protruding portions may be provided on the surface and the protruding portions may be detected by an optical sensor attached to the processing tank 10 side.
The closing lid opening / closing detection sensor 20 uses a non-contact magnetic detection sensor in this embodiment, but may be a mechanical micro switch.
Further, the loading lid open / close detection sensor 20 can be attached by attaching a detection sensor to the loading lid 21 side, the processing tank 10 side, the charging lid 21 or the processing tank 10 and a detection member to the other. is there.

Next, the stirring operation after throwing in the waste will be described.
In the stirring operation by the drive motor 1 after throwing in the waste, for example, the forward and reverse stirring is usually performed for 5 minutes in a cycle of 30 minutes, but immediately after the waste is thrown in, the stirring is started immediately, for example, 30 By performing forward and reverse stirring for 10 minutes during the minute period, the input waste can be finely crushed and mixed with the base material 12 evenly.
Further, the forward / reverse rotation also has an effect of preventing the thrown-in waste from being entangled with the stirring rod 5 and the stirring shaft 6.
Furthermore, in addition to the effect of mixing the base material 12 and the waste, the stirring stabilizes the temperature of the treated product 12a (mixture of the base material 12 and the waste), and moisture contained in the treated product 12a. It is possible to positively fly to the outside of the treated product 12a, and there is also an effect of adjusting the moisture content of the treated product 12a.

In addition, since most of the charged waste can be decomposed within 24 hours, if the waste is not charged for more than 24 hours, the stirring cycle is stopped for 5 minutes and the stirring is stopped for 55 minutes. The power supply to the drive motor 1 can be reduced, and power saving can be achieved.
In the present embodiment, the stirring rod 5 has a rod-shaped cross section and is configured to be attached to the stirring shaft 6 at a predetermined interval. It is possible to attach at intervals. In addition, a plurality of stirring rods having a triangular cross section may be attached to the stirring shaft 6 at predetermined intervals.

  Here, as shown in FIGS. 1 and 2, the cross-sectional shape of the treatment tank 10 is substantially U-shaped having an arc portion of almost a semicircle or more so that the entire treatment object 12a is uniformly stirred by a light action. It has become. A stirring shaft 6 is provided in the horizontal direction so as to coincide with the center of the arc of the arc portion. A plurality of stirring rods 5 are fixed to the stirring shaft 6 at predetermined intervals. In the present embodiment, the agitation shaft 6 is horizontally mounted on the treatment tank 10, but the treatment tank may be substantially cylindrical and the agitation shaft 6 may be provided in the treatment tank 10 in the vertical direction.

Further, at this time, since water and carbon dioxide gas are generated by stirring more than when stirring is stopped, the exhaust flow rate of the exhaust fan 16 is increased, and at the same time as supply of oxygen from the intake port 17, By discharging the gas to the outside of the processing tank 10, it is possible to prevent the processed product in the processing tank 10 from becoming damp and to adjust the moisture content of the processed product 12a.
Further, in this embodiment, the exhaust fan 16 is attached to the exhaust duct 26 in the exhaust duct 26 after passing through the deodorizing portion 27 communicating with the exhaust outlet 18. The same effect can be obtained even if a fan is attached to and sucked in.

The fan attached to the air inlet 17 may be a hot air fan capable of sending air heated from about 40 ° C. to about 70 ° C. into the processing tank 10.
By attaching a hot air fan to the intake port 17, the temperature of the gas in the treatment tank 10 can be raised.
Since the amount of saturated moisture contained in the gas increases as the temperature of the gas in the treatment tank 10 rises, if the aeration flow rate per hour is the same, the treatment tank 12 can have more moisture in the treatment object 12a in a short time. 10 can go out.
The attachment of the hot air fan to the intake port 17 is effective as a means for adjusting the moisture content of the processed object 12a when the processed object 12a becomes damp.
Further, the same effect as described above can be obtained by providing the exhaust fan 16 in the exhaust duct 26 communicating with the exhaust port 18 and providing the hot air fan in the intake port 17.

In this way, the waste introduced into the treatment tank 10a and the treatment product 12a are mixed evenly and the decomposition process starts.
When the processed material 12a decomposed in the processing tank 10a increases, it overflows from the partition plates 11a and 11b provided in the processing tank 10, and the processed material 12a moves to the processing tank 10b and further 10c.
And if the processed material 12a is accumulate | stored in the processing tank 10c, the processed material 12a can be collect | recovered from the discharge port 33. FIG. In this embodiment, the processing tank 10 is divided into three tanks by the partition plate 11, but may be divided into two tanks or four or more tanks.

Furthermore, it is possible to control the stirring operation time according to the result measured by the moisture content sensor 13. For example, the intermittent operation time of stirring is usually sufficient for sufficient stirring time even if stirring for 5 minutes during the 30-minute cycle, and when stirring for 2 minutes during the 30-minute cycle when the substrate state is dry Therefore, depending on the state of the base material, the base material 12 can be prevented from being crushed due to excessive stirring, and the life of the base material 12 can be extended.
Moreover, it becomes possible to adjust the moisture content of the processed material 12a by adjusting the stirring cycle and the exhaust gas flow rate according to the result measured by the moisture content sensor 13. When the treated product 12a becomes moist, anaerobic bacteria grow, hydrogen sulfide, etc. are generated, and the odor state becomes a bad odor. Therefore, the moisture content of the treated product 12a is adjusted within the range of 20% to 60%. It is desirable to do.

In addition, when the amount of moisture increases, the torque required for stirring increases, and the motive power is unsatisfactory, or when the treated product 12a is pulverized, if it contains moisture, it tends to be clayy. If the processed material 12a becomes clay-like, the decomposition efficiency becomes extremely low. In such a case, it is necessary to replace the entire processed material 12a or more than half of the processed material 12a.
Moreover, the moisture content sensor 13 which is the moisture content measuring means of the base material at this time directly contacts the treatment object 12a in the treatment tank 10 with a pair of electrodes, and applies a voltage between the pair of electrodes, Although it is a resistance method that measures the current flowing between the treatment objects 12a and measures the moisture content of the treatment object 12a, it may be a heat capacity method that combines a heater and a thermistor.

In addition, since the treated product 12a changes to weak alkalinity or weak acidity depending on the type of garbage that is waste, the material constituting the electrode in direct contact with the treated product 12a in the resistance method is acid resistant, It is preferable to use a metal material having excellent alkali resistance. In this embodiment, stainless steel screws that are versatile and inexpensive are used as electrodes.
Further, the moisture content measuring means of the substrate may be a heat capacity method combining a heater and a thermistor.
Alternatively, the moisture content measuring means of the base material is composed of a planar heater 9 as a heating means for heating the treatment tank 10 and a temperature detection sensor (not shown) for measuring the temperature of the planar heater 9 for controlling the treatment tank heating. A configuration in which what is used may be used as it is. When the moisture content of the processed material 12a is large, the thermal conductivity decreases. When the temperature in the treatment tank 10 is controlled in a state where the thermal conductivity is lowered, the required time becomes long. Therefore, after the temperature of the planar heater 9 reaches a preset temperature threshold, the planar heater From the change in the output of the temperature detection sensor when 9 is activated or when the operation is stopped, the moisture content of the treated product 12a can be measured. By combining treatment tank heating control and substrate moisture content measurement means, it is not necessary to install a separate substrate moisture content measurement device, which was previously provided in conventional devices, reducing the cost of the device and saving space. Can be planned.

Next, when waste input is interrupted or the input amount decreases, the processed material 12a may be dried too much by stirring or the like. At this time, the microorganisms in the treated product 12a are not only activated and dried, but the processing efficiency is lowered, and when the treated product 12a is pulverized, the microorganisms are scattered and the surroundings are contaminated. In addition, since microorganisms and fungi mixed in the fine powder are scattered at this time, it is not preferable for safety and health.
In such a case, the above-mentioned disadvantage can be compensated by preventing the fine powder from being discharged to the outside by the dust filter 25 provided at the exhaust port 18.

Further, the dust removal filter 25 is mechanically engaged with the exhaust port 18 or fixed with a thumbscrew or a snap lock so that it can be removed manually without using an instrument. By removing the dust filter 25, it is possible to easily clean the fine powder of the processed product 12a attached to the dust filter 25.
Further, the odorous air generated from the treatment tank 10 is heated by the catalyst heater 27a in the deodorization unit 27, deodorized using the oxidation catalyst 27b, and exhausted to the outside of the processing machine through the exhaust duct 26.

In the waste treatment apparatus of the present embodiment as described above, a method for joining the U-shaped plates 36, 37, and 38, the partition plate 11, and the side plates 14 and 15, which is a characteristic configuration, will be described.
In the present embodiment, as shown in FIG. 7, in the wastewater treatment apparatus having a three-tank structure, a plurality of tongue-shaped protrusions 36 a and 36 b are formed on both sides of the U-shaped plate 36 of the first tank 10 a. The convex portion 36a on one side is inserted into a plurality of square holes formed in the side plate 14 of the first tank.
The other convex portion 36b is inserted into a plurality of square holes opened in the first partition plate 11a. The convex portions 36a and 36b of the U-shaped plate are welded on the outside penetrating the square holes of the side plate 14 and the partition plate 11a (hatched portions indicated by arrows 36a and 36b in FIG. 7).
At this time, a plurality of square holes in the side plate 14 and the partition plate 11a are opened in accordance with the U-shaped bending curvature r (r = 270 mm in this embodiment) of the U-shaped plate 36. The U-shaped plate 36, the side plate 14, and the partition plate 11 a can be positioned naturally by inserting the projections 36 a and 36 b of the character-shaped plate 36 into close contact and welding, and can be accurately manufactured to a predetermined size.

  Next, the second tank 10b formed with a slightly smaller curvature r than the first tank (in this embodiment, a case where the slightly smaller curvature r = 265 mm is described, but a slightly larger curvature r, for example, r = 275 mm may be used). The U-shaped plate 37 is placed on the first tank partition plate 11a to which the first U-shaped plate 36 formed at r = 270 mm is welded (in advance along the curvature of r = 265 mm apart from r = 270 mm). The projection 37a of the U-shaped plate 37 of the second tank is inserted and welded (where a plurality of holes are made). Further, the partition plate 11b of the second tank is inserted into and closely welded to the convex portion 37b on the opposite side.

  Similarly, the U of the third tank formed with a curvature r smaller than the second tank (in this embodiment, a case where a slightly smaller curvature r = 260 mm is described, but a slightly larger curvature r, for example, r = 270 mm may be used). The square plate 38 is applied to the second partition plate 11b to which the second U-shaped plate 37 formed at r = 265 mm is welded (in advance, along the curvature of r = 260 mm apart from r = 265 mm). The projection 38a of the U-shaped plate 38 in the third tank is inserted and welded (where a plurality of are opened). Further, the side plate 15 of the third tank (a plurality of square holes are made in advance along a curvature of r = 260 mm) is inserted into the convex portion 38b on the opposite side, and is welded.

In this way, a plurality of square holes connected in advance with a predetermined curvature r are made in each of the side plates 14 and 15 and the partition plates 11a and 11b, and the convex portions 36a of the U-shaped plates 36, 37 and 38 are formed in the square holes. , 36b, 37a, 37b, 38a, 38b can be inserted and welded to manufacture a treatment tank with good dimensional accuracy.
In general, it is possible to bend a thin plate (1.2 mm to 1.5 mm) steel plate with a relatively large curvature r (r = 270 mm), but it may be deformed by its own weight, etc. It is difficult to process (weld).
However, in the present embodiment, the lateral distance dimensions (stirring axis direction) of the tongue-shaped convex portions 36a to 38b formed on both sides of each U-shaped plate 36, 37, 38 can provide dimensional accuracy relatively easily. In addition, the convex portion of the U-shaped plate is inserted into the square holes formed in the side plates 14 and 15 and the partition plates 11a and 11b, and is welded in close contact, thereby easily satisfying the highly accurate curvature r and width dimension. A processing tank can be manufactured.

In addition, waste such as garbage is agitated and crushed from the first tank 10a into which the waste is introduced, and the decomposition of the waste and the discharge of moisture start. When the waste is continuously charged, the treated product 12a (mixture of waste and base material 12) in the first tank 10a gradually overflows and moves to the second tank 10b, and further decomposition and water discharge progress. Then, it overflows and moves to 10c in the third tank. Even in the third tank 10c, the decomposition and moisture discharge are further progressed, and the processed product 12a is cut into a high-density processed product 12a.
Here, the width of the treatment tank (in the direction of the stirring axis) is wide in the first tank 10a into which waste such as garbage is introduced (397 mm in the present embodiment), and the second and third tanks are narrow (this In the embodiment, both are set to 150 mm). The first tank into which a predetermined amount of waste is to be charged must secure a predetermined treatment tank volume, but the second and third treatment tank volumes can be saved by reducing the width of the waste treatment apparatus. To make the installation space, the width must be narrowed. However, in the second and third tanks in which the lateral width is narrowed and the tank volume is reduced, the load for stirring the processed material 12a whose fragmentation has progressed and the density has increased tends to be large.

Here, the curvature r of the U-shaped plate of each processing tank is r = 270 mm for the U-shaped plate 36 of the first tank 10a and r = 265 mm for the U-shaped board 37 of the second tank 10b in the present embodiment. The U-shaped plate 38 is gradually reduced to r = 260 mm, but the length of the stirring blade that rotates in each of these tanks to stir the processed material (the length protruding from the stirring shaft 6 toward the U-shaped plate) Also, the curvature r of the U-shaped plate is shortened as the curvature gradually decreases.
It is effective to shorten the length of the stirring blade in order to prevent the tendency that the lateral width of the two tanks, the three tanks, and the processing tank is reduced, the tank volume is reduced, and the stirring load is increased. That is, sequentially reducing the curvature r of the U-shaped plate is a good method for reducing the stirring load.

In the present embodiment, the three-tank structure has been described. However, the same can be applied to a four-tank structure, a five-tank structure, and a multi-tank structure having more than that, thereby easily satisfying a highly accurate curvature r and width. Multi-tank processing tanks can be manufactured.
Further, in the present embodiment, the case where the curvature r of the U-shaped plate is sequentially reduced has been described. However, the present invention is not limited to this, and even if it is sequentially increased (the effect of reducing the stirring load is lost, but the volume of the tank increases. Effect can be obtained), and may be alternately increased or decreased.
Moreover, since the insertion welding parts 36a-38b are inserted in the direction which receives the pressure applied from the inner side to the outer side of the treatment tank generated during the stirring at a right angle, the load applied to the welding part is small and the welding strength is small. Therefore, a thin steel plate can be used, and the weight and cost can be reduced.

  Moreover, since the welding point welds the front-end | tip part of the tongue-shaped convex parts 36a-38b inserted in the square hole of each side plate 14 and 15 and each partition plate 11a and 11b, 37a and 38a shown in FIG. In four places of tongue-shaped convex parts 36a, 36b, 37b, 38b other than two places, it becomes possible to place a welded part outside the tank of each processing tank 10a, 10b, 10c, and the welding trace is in each processing tank. Corrosion of the welded portion without contact with the processed object 12a (in this embodiment, the material of the treatment tank is a stainless steel plate, but in the case of stainless steel, intergranular corrosion occurs at a place where the temperature is increased by welding. (Easily generated)

  When the processed material 12a in the tank of the first tank 10a increases, it overflows from the first tank partition plate 11a, and the processed object 12a moves to the second tank processing tank 10b. Similarly, when the processing object 12a increases in the second tank processing tank 10b, it overflows from the second tank partition plate 11b and moves to the third tank processing tank 10c. Then, the processed product 12a is accumulated in the third processing tank 10c. During this time, the treated material 12a is stirred and crushed by the stirring rod 5 planted in the stirring shaft 6 penetrating each tank, and the waste is decomposed and the water is discharged, and the weight is reduced and the volume is reduced. The processed product 12a which has become is collected from the discharge port 33.

  Here, as shown in FIGS. 2 and 3, stirring blades 34a and 34b bent in a V shape are attached to the tips of two stirring rods 5 arranged at the center of the first tank 10a. The V-shaped blade is bent at an opening angle of about 110 °, and its tip protrudes in a triangular shape as shown in FIG. By adopting such a shape, the stirring blades 34a and 34b cut into the processed product 12a in a wedge shape even in both forward and reverse rotations of the stirring shaft, and an effect of reducing the stirring load can be obtained. In addition, the shape of the V-shaped blade is used even when a solid material such as a spoon or pork bone is caught in the gap between the tip of the stirring blades 34a and 34b and the U-shaped plate 36 as a solid waste. As a result, scooping is performed, and biting of foreign matter can be avoided.

  Further, the side plate 14 adjacent to the stirring bar 5 in which the V-shaped blades 34a and 34b of the first tank 10a are arranged and the tip of the stirring bar 5 adjacent to the partition plate 11a are bent into a chevron and the direction of the stirring axis and Stirring blades 35f and 35e having a substantially triangular shape when projected in the circumferential direction of the stirring shaft are provided. By using the blade having such a shape, the processed product 12a is cut into a wedge shape as described above in relation to the side plate 14 adjacent to the stirring blade 35f and the stirring blade 35e and the partition plate 11a and the U-shaped plate 36. Therefore, the stirring load can be reduced and foreign matter can be prevented from being caught. Similarly, a stirring blade having a substantially triangular shape when bent in a mountain shape and projected in the direction of the stirring axis is also arranged at the tip of the stirring rod 5 of the second tank 10b and the third tank 10c.

  In addition, the wedge-shaped cut and scooping action also has a scraping action of the processed material 12a sticking to the side plates 14, 15 and the partition plates 11a, 11b and the U-shaped plates 36, 37, 38. Moreover, since the risk of foreign matter biting can be avoided, the side plates 14, 15 and the partition plates 11a, 11b and the U-shaped plates 36, 37, 38 constituting the treatment tank 10 can be made of a thin steel plate, and the stirring load In combination with the reduction of the device, the weight of the apparatus and the manufacturing cost can be reduced.

It is a schematic perspective view which shows the structure of the waste disposal apparatus in the Example of this invention. It is a schematic sectional drawing of the waste disposal apparatus seen from A view of FIG. It is a schematic sectional drawing of the waste disposal apparatus seen from B view of FIG. It is a schematic perspective view at the time of the exterior cover mounting | wearing of the waste disposal apparatus in the Example of this invention. It is sectional drawing which shows the position of the side board and partition plate of a waste disposal apparatus in the Example of this invention. It is sectional drawing which shows the position of the stirring shaft of the waste disposal apparatus in the Example of this invention, a side plate, a partition plate, a stirring rod, and a stirring blade. It is a schematic diagram which shows the welding of a tongue-shaped convex part, a side plate, and a partition plate from the U-shaped board of the waste disposal apparatus in the Example of this invention.

Explanation of symbols

1: Drive motor 2: Small sprocket 3: Chain 4: Large sprocket 5: Stirring rod 6: Stirring shaft 7: Bearing 8 supporting the stirring shaft 8: Exterior portion (frame)
9: Surface heater (overheating means)
10: Treatment tanks 10a, 10b, 10c: Each tank section partitioned by a partition plate 11: Partition plate 12: Base material 12a: Processed material (mixture of waste and base material 12)
13: Moisture content sensor 14: Treatment tank side plate right (side plate)
15: Processing tank side plate left (side plate)
16: Exhaust fan 17: Intake port 18: Exhaust port 19: Magnet 20 attached to the input lid: Input lid open / close detection sensor 21: Input lid 22: Input port 23: Control unit 24: Vent 25: Dust removal filters 26, 26a , 26b, 26c: Exhaust duct (pipe)
27: Deodorization part (deodorization means)
27a: catalyst heater 27b: oxidation catalyst 28: temperature sensor 29: outside air intake 30: circulation duct 31: gas suction port 32: circulation fan 33: discharge port 34: V-shaped stirring blade 35: mountain-shaped stirring blades 36, 37 38: U-shaped plate 39: discharge door

Claims (7)

A waste treatment tank in which a plurality of tanks are formed by joining a partition plate to a plate-shaped member having a substantially U-shaped cross section constituting the treatment tank and partitioning the inside of the treatment tank with the partition plate, A waste treatment apparatus having a stirring means configured by providing a plurality of stirring rods on a stirring shaft penetrating each of the plurality of tanks,
The plate-like member having a substantially U-shaped cross section and the partition plate are provided with locking portions that are locked to each other at their joints, and the plurality of tanks have a plate-like member having a substantially U-shaped cross section. The waste treatment apparatus is configured to be fixed to the partition plate by the locking portion.   The locking portions that lock each other include a tongue-shaped convex portion formed at a joint portion with the partition plate in the plate-shaped member having a substantially U-shaped cross section, and the partition plate. The waste disposal apparatus according to claim 1, wherein the waste disposal apparatus includes a hole portion into which a tongue-like convex portion of the plate-like member is inserted.   The plate-like member and the partition plate are formed of stainless steel, and a tongue-like convex portion formed on the partition plate is inserted into a hole formed in the partition plate, and the tongue-shaped convex portion is the hole portion. The waste disposal apparatus according to claim 2, wherein the plate-like member is fixed to the partition plate by welding on the outer side penetrating the plate.   The plurality of tanks partitioned by the partition plate are configured to overflow waste from the upstream side to the downstream side of the partitioned tank, and the curvature of the substantially U-shaped plate member is from the upstream side to the downstream side. The waste disposal apparatus according to any one of claims 1 to 3, wherein the waste disposal apparatus is formed so as to become smaller.   The waste treatment apparatus according to any one of claims 1 to 4, wherein a stirring blade bent in a V shape is disposed at the tip of a plurality of stirring rods provided on the stirring shaft. .   6. The waste treatment apparatus according to claim 5, wherein the tip of the stirring blade bent into a V shape is formed in a triangular shape.   The waste treatment apparatus according to any one of claims 1 to 6, wherein a stirring blade bent in a mountain shape and having a substantially triangular shape is disposed at a tip of the stirring rod adjacent to the partition plate. .

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