JPH0751654A - Garbage treating device - Google Patents

Abstract

PURPOSE:To provide a garbage treating device which rapidly takes garbage into a treating medium and prevents the generation of putrefaction smells without lowering the treating capacity. CONSTITUTION:An agitating shaft 70 is pivotally supported at approximately the center in a treating vessel 1. This agitating shaft 70 is circumferentially provided with an agitating shaft rod 7 formed by spirally curving a wire apart a spacing formed around the agitating shaft 70 and is positioned in the prescribed upper range housed in the treating vessel 1. The treating vessel 1 has a gliding plate 30 from approximately the central part toward one side in its upper part. The garbage introduced from a garbage charge port 31 at the front end of the gliding plate 30 is charged to the rotating circumferential side of the agitating rod 7 by the effect of the agitating rod 7 and is rapidly mixed with the treating medium 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a garbage disposal device for decomposing garbage (garbage) generated in a kitchen by the action of microorganisms.

[0002]

2. Description of the Related Art As a method for treating kitchen waste that is generated every day in kitchens such as general households and restaurants, there is a method utilizing microbial decomposition. This method is useful for reducing the amount of waste, can contribute to the reduction of the processing load at the waste incinerator and the sewage treatment plant, and is attracting attention as being desirable from the viewpoint of environmental protection.

A compost container has heretofore been known as this type of garbage processing device. This is a cylindrical container with a lid plate on the opening on one side, and is used by embedding it in the soil for a suitable length with the opening on the other side facing downward, opening the lid plate and throwing garbage into the inside, After that, the lid plate is left in a closed state, and the input garbage is decomposed by the activity of microorganisms that propagate in the soil to be composted.

However, the compost container is premised on the use of the soil for the embedding, and
Disassembly of the kitchen waste occurs slowly inside, and a large-capacity container is required to increase the amount of processing, and the offensive odor generated due to the decomposition may leak to the surroundings, making it suitable for use in collective housing. There is a problem that it is not suitable, and there is also a problem that it is difficult to handle the compost produced by decomposition when used in urban areas.

[0005] A garbage disposal device which solves these problems and utilizes decomposition by microorganisms and can also be used in urban areas is disclosed in Japanese Utility Model Publication No. 2-1291 (B09B 3/00) and the like. ing. This is because a processing medium suitable for culturing microorganisms such as wood debris such as sawdust, chaff, rice bran, soil, etc. is stored inside a hollow container (treatment tank) having an appropriate inner volume, and the treatment is performed. This is a device having a simple configuration in which a kitchen throw-in port is provided at the top of the tank and a drain port is provided at the bottom.

The inside of the treatment tank is maintained in an environment (temperature, humidity, etc.) suitable for the propagation of microorganisms, and a mixing means is arranged inside the treatment tank. This mixing means performs an operation of rotating and driving the stirring blade embedded in the processing medium around the horizontal axis, for example, to mix the garbage thrown from the garbage feeding port into the processing medium.

Further, for example, Japanese Patent Laid-Open No. 4-4084 (B09B
5/00) proposes a garbage disposal device equipped with a mixing means that is driven to rotate about the vertical axis. The mixing means includes a stirring means in which a stirring blade in which a stirring plate is bent in a spiral shape is rotationally driven around a rotation axis of a vertical axis, and a revolution shaft for further rotating the stirring means in a rotational manner around the center of the processing tank. The operation is to mix the kitchen waste that is thrown in through the kitchen throw-in port provided on the upper side surface of the tank with the processing medium. The kitchen waste thus mixed is decomposed by the action of various microorganisms that propagate in the treatment medium kept in a good environment.

Furthermore, the applicant of the present invention, as a treatment medium to be stored in the treatment tank, is a microorganism culture substrate disclosed in Japanese Examined Patent Publication No. 34679/1990, “Method for treating microorganisms of sludge with wood particles”, that is, It has been proposed to use wood chips that have been made porous by a specified treatment in order to obtain sufficient air permeability and water retention, and by adopting such a treatment medium, the treatment amount per unit volume can be minimized. In addition, the kitchen waste in the treatment medium can be added to water (H ₂ O) that can be discarded into sewage and carbon dioxide (CO ₂ ) that can be released to the atmosphere beyond the stage of composting. It will be decomposed into, and there will be no trouble in disposing of the product.

[0009]

Now, by verifying the mechanism for disassembling the kitchen waste in the kitchen processing apparatus as described above,
Microorganisms that propagate in the treatment medium are roughly divided into worms such as rotifers, nematodes and protozoa, and fungi such as cocci and bacilli, and the garbage thrown into the treatment tank is mainly an aerobic environment. It is decomposed by the predatory action of the worms that act underneath, and the intermediate products such as saccharides, amino acids, and organic acids produced by this decomposition are acted upon by the fungi that mainly act in an anaerobic environment to produce the final product. It has been clarified that it is decomposed into water and carbon dioxide.

It is the predatory ability of insects that affects the processing ability of this decomposition. Decomposition of the garbage thrown into the garbage treatment device is promoted by being taken in and mixed in the treatment medium in which the insects propagate. In the kitchen waste treatment apparatus proposed in the above-mentioned JP-A-4-4084, the kitchen waste is mixed with the processing medium by the rotation and revolution of the stirring means. In particular, when the stirring means is one in which a spiral stirring blade is fixed to the peripheral surface of the rotating shaft, the rotation of the spiral stirring blade causes a vertical flow in the processing medium, and the kitchen waste is processed near the stirring blade. It can be incorporated into the medium.

However, since the stirring blade is also rotating around the revolution axis, the kitchen waste is left on the processing medium when it is rotating at a position separated from immediately below the kitchen input port. Since the agitating blade revolves around its own axis, there is a limit to increase its orbital speed, which makes it difficult to quickly take the kitchen waste left on the processing medium into the processing medium. Further, depending on the capacity of the garbage, there is a possibility that the garbage may be left on the processing medium for a long period of time.

As described above, when the garbage thrown into the apparatus is left on the treating medium without being mixed with the treating medium, the garbage is not eaten by the reptiles and decomposes for a long time. Requires. This has a problem of reducing the processing capacity of garbage. In addition, there is a problem in that the kitchen garbage decomposes to give off a bad smell.

The present invention has been made in view of the above circumstances, and the mixing means is provided with a spiral stirring member having a hollow near the axial center, and the kitchen garbage is introduced at a position near the vertical axis. An object of the present invention is to provide a kitchen waste processing apparatus that promptly takes garbage into the processing medium, does not reduce the processing capacity, and suppresses the generation of putrid odor.

[0014]

The kitchen garbage processing apparatus according to the present invention has a mixing means which rotates around a vertical axis inside a processing tank for containing a processing medium, and an inlet provided at the upper part of the processing layer. From the garbage introduced into the treatment medium from the, by mixing the treatment medium by the operation of the mixing means, in the garbage treatment apparatus for decomposing by the activity of microorganisms propagated in the treatment medium, the mixing means, A spiral stirrer having a cavity near the axis is provided, and the introduction port is opened at a position near the axis.

[0015]

In the present invention, the treatment medium is caused to flow in the vertical direction by the rotation of the spiral stirring body about the vertical axis. When the mixing means is rotated in a direction to move the treatment medium upward to take in air into the treatment medium, the treatment medium moves downward in at least the hollow portion formed near the axial center of the stirring body. . Since the kitchen waste is introduced onto the processing medium in the vicinity of the shaft center from an inlet opening at a position in the vicinity of the shaft center of the stirring body, it is quickly taken into the processing medium moving downward and mixed, It is not left on the processing medium. As a result, the processing capacity is not reduced and the generation of an offensive odor is prevented.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings showing the embodiments. FIG. 1 is a side sectional view of a garbage processing device according to the present invention (hereinafter referred to as the device of the present invention), and FIG.
It is an upper part sectional view by the II line.

As shown in the figure, in the apparatus of the present invention, a processing medium 2 is housed inside a processing tank 1 which is a hollow container made of a corrosion resistant material such as synthetic resin or stainless steel, and a top plate is attached above and below the processing tank 1, respectively. The exterior plate 5 is erected between 3 and the leg member 4,
The front and rear and left and right sides of the processing tank 1 are covered.

The top plate 3 which is an integrally molded product made of synthetic resin
Is attached in such a manner as to cover the upper portion of the processing tank 1 which is opened over substantially the entire surface, and is provided with a sliding plate 30 which is inclined downward from one side (front side) of the processing tank 1 toward a substantially central portion.
An opening (garbage input port 31) that faces the inside of the processing tank 1 is formed at the tip of the sliding plate 30.

A lid plate 33 is attached to the top plate 3 so as to cover the entire upper side of the sliding plate 30. In this installation, one edge of the lid plate 33 is aligned with the front edge of the top plate 3, and
The other edge of 33 is pivotally supported about the central portion of the top plate 3 around the horizontal axis, and by swinging the lid plate 33 around this pivot axis, the upper part of the sliding plate 30 can be opened and closed from the front side of the lid plate 33. Has been done.

A storage chamber surrounded by a cover plate 60 attached to the top plate 3 is formed on the rear side of the pivot portion of the cover plate 33, and a motor box 80 is provided inside the storage chamber. The drive motor 8 is housed inside the motor box 80. On the upper part of the cover plate 60, an operation panel (not shown) including switches for driving operation, a display section for displaying the driving state, and the like is provided.

A stirring shaft 70 is rotatably supported at a substantially central portion of the processing tank 1 so as to be rotatable about a substantially vertical axis. This stirring shaft
A stirring rod 7 formed by bending a wire into a spiral shape is coaxially provided around the stirring shaft 70 around the stirring rod 70.
Is located in a predetermined area above the processing medium 2 contained in the processing tank 1. FIG. 3 is a perspective view showing the shape of the stirring rod 7 described above. Then, as shown in FIG. 1, the upper end of the stirring shaft 70 protruding from the processing tank 1 into the storage chamber is connected to the output end of the drive motor 8 via a drive chain 81, and the stirring shaft 70 When the liquid is rotationally driven by the motor 8, the processing medium 2 stored in the processing tank 1 is treated by the stirring shaft 70.
By the action of the stirring rod 7 that rotates together, the mixing is performed in the axial direction and the circumferential direction (vertical direction and lateral direction).

A drainage portion 10 is formed in the lower inner portion of the processing tank 1 by surrounding it with a partition plate 11. This drainage 10
Is connected to the outside by a drainage port 12 penetrating the peripheral wall of the treatment tank 1, and is connected to a discharge pipe for sewage by a drainage pipe (not shown) connected to the drainage port 12 via a joint 13.

The treatment medium 2 inside the treatment tank 1 is made porous by a predetermined treatment, as disclosed in Japanese Patent Publication No. 34679/1990, and is made of wood which ensures good air permeability and water retention. As shown in the figure, the processing medium 2 is a strip and is accommodated in an area above the processing tank 1 with a space of a predetermined height excluding the drainage portion 10 below the processing tank 1. The partition plate 11 that surrounds the periphery of the drainage section 10 is made of a perforated metal plate such as punching metal, which allows water generated in the processing medium 2 to pass through in the process of kitchen waste treatment described later and at the same time. While preventing the medium 2 from falling off, the weight of the processing medium 2 containing water can be supported.

As described above, the stirring rod 7 is located in a predetermined range above the storage area of the processing medium 2, and the storage area of the processing medium 2 is agitated with the upper area where stirring is performed by the stirring rod 7. It is divided into a lower area that is not closed.

In the operation of the apparatus of the present invention constructed as described above, the lid plate 33 covering the upper front side of the top plate 3 is opened, and the garbage is put on the sliding plate 30, and then the cover plate 60 on the rear side thereof is placed. The operation is performed by the procedure of turning on the operation switch (not shown) arranged in the.

The drive motor 8 is rotationally driven in response to the operation switch being turned on. As described above, the driving force of the drive motor 8 is transmitted to the stirring shaft 70 via the drive chain 81, the stirring rod 7 rotates inside the processing tank 1, and the processing medium 2 is stirred. On the other hand, the garbage thrown on the slide plate 30 slides along the slide plate 30, passes through the kitchen feed port 31, and is stirred.
Is introduced to the center side of. With the rotation of the stirring rod 7, the garbage moves in the rotational direction and the axial direction of the stirring rod 7 in accordance with the movement of the processing medium 2, but the processing medium 2 moves downward on the rotation center side, and the garbage is It is immediately taken into the processing medium 2 and mixed. It should be noted that, by pouring water over the sliding plate 30 after the garbage is put in, it is possible to surely introduce the garbage into the processing tank 1.

The stop of the operation as described above is performed according to the operation of turning off the operation switch, which is carried out by the user's judgment at the time when the introduction of the garbage into the garbage introduction port 31 is completed. After that,
The device of the present invention is kept in a standby state until the next kitchen waste is introduced, during which the kitchen waste is disassembled. As described above, the treatment medium 2 stored in the treatment tank 1 is a microbial culture base material that forms an environment that opposes the growth of microorganisms. After breeding, the kitchen waste is decomposed by the activity of these microorganisms during the waiting state. Further, since the garbage in the processing medium 2 is crushed by the rotation of the stirring rod 7 after being charged, the decomposition treatment is performed in a relatively short time.

Microorganisms that propagate in the treatment medium 2 are roundworms,
Nematodes, protozoa, and other worms, and cocci, bacilli, and other fungi are roughly classified. The kitchen waste in the treatment medium 2 is a saccharide that is first eaten by the worms that act in an aerobic environment. , It is decomposed into intermediate products such as amino acids and organic acids, and then decomposed into water and carbon dioxide which are the final products by the activity of the fungi under an anaerobic environment.

A part of the produced water is taken into the treatment medium 2 and has a function of keeping the humidity against the growth of microorganisms, and most of the remaining water flows down in the treatment medium 2 to form the partition plate 11.
Permeate the water and collect in the drainage part 10, drainage port 12, joint 13
And it is discharged to the sewage through a drainage pipe (not shown). On the other hand, the generated carbon dioxide gas rises in the processing medium 2, flows out to the upper space of the processing tank 1, and is discharged to the atmosphere through an exhaust port (not shown) provided in parallel in the storage space on the rear side of the top plate 3. To be done.
Further, heat generated by the activities of insects and fungi keeps the inside of the treatment medium 2 at a temperature suitable for the propagation of microorganisms. In addition, when the garbage is not put into this device for a long period of time, or when this device is used in an area with severe cold, for example, a heater tube having a heater is provided in the processing medium 2 or a hollow shaft is used. A heater may be built in the hollow portion by using a certain stirring shaft, and the processing medium 2 around the heater may be kept warm by heating by the heater.

As described above, in the apparatus of the present invention, the storage area of the processing medium 2 inside the processing tank 1 is divided into an upper region and a lower region, and in the upper region, the treatment accompanying the rotation of the stirring rod 7 is performed. While the air is taken in at any time by stirring the medium 2, the aerobic environment is maintained, whereas in the lower region, the air is hardly taken in and the anaerobic environment is maintained. That is, in the inside of the treatment tank 1, the upper region is mainly the active region of insects, and the lower region is mainly the active region of fungi.
The kitchen waste dispersed in the upper region is decomposed by the activity of the insects by the rotation of the stirring rod 7, the intermediate product generated by this decomposition is settled in the lower region, and water and carbon dioxide are generated by the activity of the fungi in the lower region. A rational decomposition process of decomposition into gas is performed.

In the apparatus of the present invention, a sliding plate 30 serving as a guide plate when the kitchen waste is thrown into the processing tank 1 is provided from one side (front side) of the processing tank 1 toward the substantially central portion. The kitchen waste that slides along the sliding plate 30 and is introduced to the center side of the rotation of the stirring rod 7 is taken into the processing medium 2 that moves downward, is quickly mixed, and suppresses the generation of putrid odor, Prompt and complete decomposition.

Next, a second embodiment of the present invention will be specifically described with reference to the drawings showing the second embodiment. FIG. 4 is a side sectional view of the garbage processing device of the second embodiment. This kitchen garbage processing apparatus stores a processing medium 2 inside a processing tank 1 which is a hollow container made of a corrosion-resistant material such as synthetic resin or stainless steel, and has a substantially vertical axis around the center of the processing tank 1. A stirring shaft 70 is rotatably supported by the shaft. The stirring shaft 70 includes a stirring rod 7 formed by bending a wire rod in a spiral shape, and an auxiliary stirring rod having a diameter smaller than that of the stirring rod 7 in which the wire rod is bent in a spiral shape opposite to the stirring rod 7. 71 and the stirring rod 7 and the auxiliary stirring rod 71 are located in a predetermined range above the processing medium 2 contained in the processing tank 1. The other parts are the same as those in the first embodiment described above, and the same parts are designated by the same reference numerals and the description thereof is omitted.

In the kitchen waste processing apparatus having such a structure, when the stirring shaft 70 is rotationally driven by the motor 8, the processing tank 1
The processing medium 2 housed inside is stirred more strongly by the action of the stirring rod 7 which rotates together with the stirring shaft 70, and is mixed with kitchen waste, so that the processing capacity can be improved.

Next, a third embodiment of the present invention will be specifically described with reference to the drawings showing the same. FIG. 5 is a side cross-sectional view of the garbage processing device of the third embodiment. This kitchen garbage processing apparatus stores a processing medium 2 inside a processing tank 1 which is a hollow container made of a corrosion-resistant material such as synthetic resin or stainless steel, and has a substantially vertical axis around the center of the processing tank 1. A stirring shaft 70 is rotatably supported by the shaft. The stirring shaft 70 includes a stirring rod 7 formed by bending a wire rod in a spiral shape, and an auxiliary stirring rod 72 in which the wire rod is bent in a spiral shape in a direction opposite to the stirring rod 7 and has the same diameter as the stirring rod 7. And are coaxially installed, and the auxiliary stirring rod
72 is located in the upper area of the stirring rod 7. The other parts are the same as those in the first embodiment described above, and the same parts are designated by the same reference numerals and the description thereof is omitted.

In the kitchen waste processing apparatus having such a structure, when the stirring shaft 70 is rotationally driven by the motor 8, the processing tank 1
By the action of the stirring rod 7 that rotates together with the stirring shaft 70, the surface side of the processing medium 2 stored inside is more strongly diffused and mixed with the garbage, so that the processing capacity can be improved.

Next, a fourth embodiment of the present invention will be specifically described with reference to the drawings showing the same. FIG. 6 is a side cross-sectional view of the kitchen waste disposal apparatus of the fourth embodiment. This kitchen garbage processing apparatus stores a processing medium 2 inside a processing tank 1 which is a hollow container made of a corrosion-resistant material such as synthetic resin or stainless steel, and has a substantially vertical axis around the center of the processing tank 1. A stirring shaft 70 is rotatably supported by the shaft. A transfer screw 73 that rotates coaxially is attached to the upper portion of the stirring shaft 70. A stirring rod 7 formed by bending a wire into a spiral shape is provided around the stirring shaft 70 below the transfer screw 73. The stirring rod 7 is an upper portion of the processing medium 2 contained in the processing tank 1. It is located within a predetermined range.

On the upper part of the processing tank 1, there is provided a sliding plate 32 which is inclined downward from the entire peripheral side of the processing tank 1 toward the substantially central portion. The tip of the sliding plate 32 extends in a substantially vertical direction and is formed into a cylindrical shape with a proper distance from the transfer screw 73,
A kitchen waste introduction port 31 that faces the inside of the processing tank 1 is formed.
The other parts are the same as those in the first embodiment described above, and the same parts are designated by the same reference numerals and the description thereof is omitted.

The kitchen waste treating apparatus having the above-described structure is provided with a sliding plate when the stirring shaft 70 is rotationally driven by the motor 8.
The garbage slid along 32 is transferred to the garbage introducing port 31 by the rotation of the transfer screw 73. At that time, it is crushed between the tip of the sliding plate 32 and the transfer screw 73, and is surely introduced from the garbage introduction port 31 to the rotation center side of the stirring rod 7. Then, the kitchen waste is taken into the processing medium 2 which moves downward, is quickly mixed, suppresses the generation of a putrid odor, and is promptly completely decomposed.

In the present embodiment, a wire rod is used as the agitating member, which is bent in a spiral shape. However, the stirring member is not limited to this. It may be a spirally bent one. Further, in this embodiment, the spiral stirring body is provided around the stirring shaft, but the stirring shaft may be provided only at the end of the spiral stirring body.

[0040]

As described in detail above, the apparatus of the present invention is provided with a mixing means having a spiral stirrer having a cavity near the axial center thereof, and the garbage introduction port is near the rotating shaft of the mixing means. Since it is opened at the position, the garbage is introduced to the rotation center side of the mixing means, taken into the processing medium that moves downward, and is quickly mixed and decomposed to prevent the generation of rotten odor. However, the present invention has excellent effects such as suppressing a reduction in processing capacity.

[Brief description of drawings]

FIG. 1 is a side sectional view of a device of the present invention.

FIG. 2 is a top sectional view taken along line II-II of FIG.

FIG. 3 is a perspective view showing the shape of a stirring rod.

FIG. 4 is a side cross-sectional view of a garbage disposal according to a second embodiment of the present invention.

FIG. 5 is a side cross-sectional view of a garbage disposal according to a third embodiment of the present invention.

FIG. 6 is a side sectional view of a garbage processing device according to a fourth embodiment of the present invention.

[Explanation of symbols]

 1 Processing Tank 2 Processing Medium 3 Top Plate 7 Stirring Bar 8 Drive Motor 10 Drainage Section 31 Kitchen Waste Inlet 30,32 Sliding Plate 33 Lid Plate 70 Stirring Shaft 71,72 Auxiliary Stirring Bar 73 Transfer Screw

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Norimasa Sakamoto 2-18, Keihanhondori, Moriguchi City, Osaka Sanyo Electric Co., Ltd. (72) Yoshihisa Onishi 2-18th, Keihanhondori, Moriguchi City, Osaka Sanyo Denki Incorporated (72) Inventor Ichiho Takama 2-18 Keihan Hondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (72) Inventor Hiroyuki Sasakura 2-18 Keihan-hondori, Moriguchi, Osaka Sanyo Electric Co., Ltd.

Claims (1)

[Claims] 1. A treating means for accommodating a treatment medium is provided with a mixing means which rotates about a vertical axis, and the kitchen waste introduced into the treatment medium through an inlet provided in the upper part of the treatment layer is In the kitchen waste processing apparatus that mixes with the processing medium by the operation of the mixing means and decomposes by the activity of microorganisms that propagate in the processing medium, the mixing means is a spiral stirrer having a cavity in the vicinity of its axial center portion. The kitchen waste processing device, wherein the introduction port is opened at a position near the axial center portion.