JPH0751655A - Garbage treating device - Google Patents

Abstract

PURPOSE:To prevent the degradation in the garbage treating capacity according to environmental degradation by well maintaining the environment of a region where mingling by a mixing means is executed. CONSTITUTION:The constitution to mingle the garbage charged from a garbage charge port 31 into a treating vessel 1 with a treating medium 2 in this treating vessel 1 by mixing vanes 7, 7... rotating around their horizontal axes is provided with agitating vanes 8, 8... including the boundary part between an upper region A where this mingling is executed and a lower region B where the mingling is not executed in their rotating area in this boundary part. A solidified layer C generated when the treating medium 2 is pushed to be solidified on the rotating circumferences of the mixing vanes 7, 7 is destroyed by rotation of these agitating vanes 8, 8 to prevent the environmental degradation of the upper region A generated by stagnation of water with this solidified layer C as a pseudo bottom.

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 is widely known as a garbage disposal device according to this method. 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
Disintegration of kitchen waste occurs slowly inside, a large volume container is required to increase the throughput, and there is a possibility that a strange odor generated due to decomposition will leak to the surroundings.
It has a problem that it is not suitable for use in urban areas where there are many apartment houses and the like, and there is also a problem in handling compost produced by decomposition when it is used in urban areas.

[0005] A kitchen waste disposal device has been put into practical use, which solves these problems, utilizes decomposition by microorganisms, and can be used in urban areas. FIG. 10 is a front sectional view showing a typical configuration of this type of garbage processing device, and FIG. 11 is a side sectional view of the same.

[0006] As shown in the figure, this kitchen waste treatment apparatus has a treatment tank 1 which is a hollow container made of a corrosion resistant material, and a treatment medium suitable for culturing microorganisms such as wood chips such as sawdust, rice husks, rice bran and soil. In addition to accommodating 2, the top plate 3 which covers the upper part of the processing tank 1 is provided with a lid plate 30 for opening and closing a kitchen waste inlet 31, and the inner bottom part of the processing tank 1 is surrounded by a partition plate 11. A drainage part 10 is formed surrounding the drainage part 10, and a drainage port 12 opening to the drainage part 10 is connected to a drain pipe to sewage (not shown) by a drainage pipe 14 connected via a joint 13. .

Mixing blades 7, 7 ... Are embedded in the processing medium 2 inside the processing tank 1. These mixing blades 7,7
Is projectingly provided on a mixing shaft 70 horizontally extending inside the processing tank 1 and is rotatably driven by a mixing motor M ₁ disposed on the upper inside of the processing tank 1 to stir the processing medium 2. The garbage that is thrown into the treatment tank 1 from the garbage feeding port 31 has an effect of mixing the treatment medium 2 substantially evenly, and the garbage that is mixed in this way is decomposed by the activity of the microorganisms that propagate in the treatment medium 2. To be done.

The applicant of the present invention, as the treatment medium 2 to be stored in the treatment tank 1, is a microorganism culture substrate disclosed in Japanese Patent Publication No. 34679/1990, "Method for treating sludge with microorganisms of wood," that is, It has been proposed to use wood chips that have been made porous by a predetermined treatment in order to obtain good air permeability and water retention. When this type of treatment medium 2 is adopted, the activity of microorganisms in the treatment medium 2 is promoted, and the kitchen waste mixed in the treatment medium 2 is treated with water (H ₂ O) without being composted.
And come to be decomposed into carbon dioxide (CO _2), while discharged into the sewage through the drainage portion 10 of the former, by releasing the latter to the atmosphere, it is possible to completely eliminate the garbage.

Microorganisms that propagate in the treatment medium 2 include worms such as ringworms, nematodes and protozoa that mainly act in an aerobic environment, and cocci and bacilli that mainly act in an anaerobic environment. It has been clarified that the processing medium 2 is roughly divided into fungi, and the mixing of the processing medium 2 by the mixing blades 7, 7 ... Disperses the garbage thrown into the processing tank 1 in a wide range, and It is necessary to take in air and obtain an aerobic environment suitable for the activity of the reptile.

That is, the garbage put into the treatment tank 1 is decomposed by the predation action of the insects living in the upper region A where the mixing blades 7, 7, ... Are mixed, and the sugars produced by this decomposition. While the intermediate products such as amino acids and organic acids reach the drainage section 10 at the bottom of the treatment tank 1, they are decomposed into water and carbon dioxide as final products by the action of the fungi living in the lower area B. .

[0011]

However, in the garbage treating apparatus as described above, the mixing of the processing media 2 by the rotation of the mixing blades 7, 7 ... Is performed while pushing the processing media 2 outward in the radial direction. As shown by the broken line in FIG. 11, a coagulation layer C formed by pressing the treatment medium 2 is formed slightly outside the rotation range of the mixing blades 7, 7, ... When the clogging occurs due to a substance having low water permeability such as starch and gluten, the intermediate product is clogged with the intermediate product, and water generated along with the garbage in the treatment tank 1 and decomposition of the garbage are generated. As a result of the accumulated water accumulating with the coagulation layer C as a pseudo bottom, the habitat of microorganisms in the upper side of the coagulation layer C, that is, the upper region A where the mixing blades 7, 7 ... Processing On force can not be obtained, garbage unprocessed disadvantageously generate malodors rot.

The present invention has been made in view of such circumstances, and it is possible to favorably maintain the environment in the area where the mixing is performed by the mixing means, and the deterioration of the processing capacity and the occurrence of decay due to this can be prevented. It is an object of the present invention to provide a garbage disposal device that can prevent this.

[0013]

The kitchen garbage processing apparatus according to the present invention comprises a mixing means which rotates about a horizontal axis inside a processing tank for containing a processing medium, and the mixing tank operates so that the upper part of the processing tank is above the processing tank. In the kitchen waste processing apparatus that mixes the garbage thrown in from the above with the treatment medium and decomposes it by the activity of the microorganisms propagating in the treatment medium, it is provided with a stirring means for stirring the boundary portion of the region where the mixing is performed. It is characterized by

Further, it is characterized in that it further comprises an operating means which is mechanically connected to the agitating means and extends outside the processing tank, and which causes the agitating means to perform an agitating operation by its operation.

Further, a water level sensor equipped with a motor for driving the agitating means, for detecting the water level of the water staying in the region where the mixing is performed, and / or an odor disposed inside the processing tank is provided. It is characterized by comprising a sensor and a control means for driving the motor based on the detection results of these sensors to cause the stirring means to perform the stirring operation.

Furthermore, a motor for driving the stirring means, an accumulating means for accumulating the operating time of the mixing means directly or indirectly, and a motor for driving the motor according to the cumulative time of the accumulating means. And a control means for causing the stirring means to perform a stirring operation.

[0017]

In the present invention, the stirring means is arranged at the boundary portion of the region where the mixing is performed by the mixing means, and the solidification layer of the processing medium formed at the boundary portion is destroyed by the operation of the stirring means, The retention of water using this coagulation layer as a pseudo bottom is eliminated, and deterioration of the habitat of the microorganisms in the mixing area and deterioration of the processing capacity due to this are prevented.

Further, an operating means mechanically connected to the agitating means is extended to the outside of the processing tank, and the agitating means is operated by an artificial operation of the extended end to appropriately destroy the solidified layer. Let it be done. Further, a motor for driving the stirring means is provided, and a decrease in the processing capacity due to the formation of the solidified layer is provided inside the water level sensor that detects the accumulated water level in the area where the mixing is performed and / or inside the processing tank. The determination is made based on the detected result of the odor sensor, and the motor is driven according to the determination to operate the stirring means so that the solidified layer is surely destroyed when necessary. Furthermore, the formation of a solidified layer at the boundary portion is predicted by the cumulative operating time of the mixing means,
By driving the motor to operate the stirring means, the solidified layer is destroyed in advance.

[0019]

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 front sectional view of a kitchen waste processing apparatus according to the present invention (hereinafter referred to as an apparatus of the present invention), and FIG. 2 is a side sectional view of the same.

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. An exterior plate 5 is installed between the base plate 3 and the leg member 4 to cover the front and rear and left and right sides of the processing tank 1.

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 part of the processing tank 1 which is opened over substantially the entire surface, and as shown in FIG. 2, is provided with a sliding plate 30 which is inclined downward from one side of the processing tank 1 toward the center. . 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, and the garbage input port 31 is a shutter mounted so as to be swingable around a pivot along the upper edge thereof. It is adapted to be opened and closed by the plate 32. The shutter plate
32 is a garbage throwing port 31 by the urging of an urging means (not shown).
Is weakly pressed from the inside of the processing tank 1 to the periphery of
It is adapted to be opened by pressing from the sliding plate 30 side.

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 about the horizontal axis, and the upper part of the sliding plate 30 is opened and closed from the front side (the left side in FIG. 2) by the swinging of the lid plate 33 about this pivot axis. It is made possible.

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 microprocessor is used in the storage chamber. The operation control unit 6 is stored. The operation control unit 60
The peripheral circuit thereof and the peripheral circuit thereof are integrally covered with a resin mold such as urethane resin, and prevent corrosion caused by gas generated inside the processing tank 1 due to decomposition of kitchen waste described later and moisture inside the processing tank 1. I'm trying. On the upper part of the cover plate 60, an operation panel (not shown) including a switch for driving operation, a display section for displaying the driving state, and the like is provided.

As shown in FIG. 2, a drainage portion 10 is formed in the lower part of the inside of the processing tank 1 by surrounding it with a partition plate 11. This drainage part 10 is a drainage port that penetrates the peripheral wall of the processing tank 1.
A drain pipe 14 is connected to the outside by 12 and is connected to the drain port 12 via a joint 13, and is connected to an unillustrated sewage discharge pipe.

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 it is a wood material which secures 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.

Inside the processing tank 1, a mixing shaft 70 is placed above the storage area of the processing medium 2 and rotatably around a substantially horizontal shaft center. A plurality of mixing blades 7, 7 ... Are radially outwardly provided at appropriate intervals in the axial direction.
Is projected. On the other hand, a motor box is provided on the upper inside of the processing tank 1, and the mixing motor M ₁ is housed inside the motor box. The output shaft of the mixing motor M ₁ and the mixing shaft 70 penetrate one side wall of the processing tank 1 and project to the outside on the same side, and are connected by a drive chain 15 wound between them. is there. With the configuration described above, the mixing blades 7, 7 ... Protrudingly provided on the mixing shaft 70 are rotated by receiving the driving force of the mixing motor M ₁ through the drive chain 15 and processing the garbage thrown in as described later. It operates as a mixing means for mixing in the medium 2.

As described above, the mixing blades 7, 7 ... Are located above the storage area of the processing medium 2, and the storage area of the processing medium 2 is an upper area where mixing is performed by the mixing blades 7, 7. A and a lower region B in which no mixing is performed are divided. Each of the mixing blades 7, 7 ... Has a shape curved toward one side in the circumferential direction as shown in FIG. 2, and has a chevron cross section in which the inside of the curved circle is sharpened as shown in FIG. The rotation of the mixing blades 7, 7, ... Due to the transmission from the mixing motor M _{1 is first on} the inside of the curved circle, that is, on the ridge line side of each of the mixing blades 7, 7, ..., As shown by the arrow in FIG. It mainly occurs in a different direction. With this configuration, the mixing by the rotation of the mixing blades 7, 7 ... Is efficiently performed, and this mixing can be performed with a small resistance, and the power load of the mixing motor M ₁ can be reduced.

Further, inside the processing tank 1, mixing blades 7, 7 are provided.
The stirring shaft 80 is laterally laid on the lower side so as to be rotatable about a substantially horizontal shaft center, and the stirring shaft 80 is similar to the mixing blades 7, 7 in the mixing shaft 70 in the axial direction. Is provided with a plurality of stirring blades 8 protruding outward in the radial direction at appropriate intervals. On the other hand, a motor box is provided in the lower inside of the processing tank 1, and the stirring motor M ₂ is housed inside the motor box. The output shaft of the stirring motor M ₂ and the stirring shaft 80 penetrate one side wall of the processing tank 1 and project to the outside on the same side, and are connected by a drive chain 16 wound between them. is there.

With the above construction, the stirring blades 8, 8 ... Protrudingly provided on the stirring shaft 80 are rotated by being transmitted with the driving force of the stirring motor M ₂ via the drive chain 16, and processing in this rotation range is performed. The operation of stirring the medium 2 is performed. As shown in FIG. 1, the projecting positions of the stirring blades 8, 8 ... Are set between the mixing blades 7, 7 ,. , 7 ... Have a suitable length to penetrate into the rotation range. Thus, the stirring by the rotation of the stirring blades 8, 8 ... Does not cause interference with the mixing blades 7, 7 ... And the upper region A where the mixing is performed by these rotations.
And the lower area B where this mixing is not performed occurs.

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, the garbage is put on the sliding plate 30, the lid plate 33 is closed, and then the lid plate 33 is closed. The procedure is performed by turning on an operation switch (not shown) arranged on the rear cover plate 60.

In response to the ON operation of the operation switch, the operation control section 6 issues a drive command for a predetermined time to the mixing motor M ₁ ,
The mixing motor M ₁ is rotationally driven. As described above, the driving force of the mixing motor M ₁ is supplied to the mixing shaft 70 via the drive chain 15.
To the mixing blades 7, 7 ...
Rotates. On the other hand, the garbage thrown on the slide plate 30 slides along the slide plate 30, pushes the shutter plate 32 at the front end open, and is introduced into the processing tank 1 through the garbage feed port 31, and the mixing blade 7 , 7 ... are mixed with the processing medium 2 which is being stirred. 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 mixing blades 7, 7 ... Rotate in the forward direction for a predetermined time (rotation in the direction indicated by the arrow in FIG. 2) in response to a drive command from the operation control unit 6 and then for a short time thereafter. Repeat inversion multiple times. The mixing blades 7, 7 ... Have a curved shape as described above, and the kitchen waste that is introduced into the processing tank 1 and drops onto the processing medium 2 is drawn inward in the radial direction at the time of forward rotation, and at the time of reverse rotation. While being extruded outwardly, they are mixed, and during this time, they are gradually crushed by the collision with the mixing blades 7, 7 ... And the inner wall of the processing tank 1 to become fine crushed particles, which are substantially evenly dispersed in the entire upper region A. Further, this mixing is mainly performed by the normal rotation of the mixing blades 7, 7, ... Having a small stirring resistance, so that the driving load of the mixing motor M ₁ can be kept small.

The operation control unit 6 keeps the standby state until the next time the garbage is thrown in after the above-mentioned operation when the garbage is thrown in, and the garbage mixed in the processing medium 2 is kept in this standby state. Is decomposed into. During this time, the operation control unit 6
In order to take in air into the processing medium 2, a drive command is issued to the mixing motor M ₁ every predetermined time, and the operation of stirring the processing medium 2 by the rotation of the mixing blades 7, 7 ...

As described above, the treatment medium 2 in the treatment tank 1 is a microbial culture substrate that forms an environment suitable for the growth of microorganisms, and the temperature in the treatment medium 2 depends on the activity of the microorganisms. Is maintained at a temperature suitable for breeding. Therefore, in the processing medium 2 inside the processing tank 1,
Various kinds of microorganisms brought in with the garbage propagate, and the garbage 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 mixing blades 7, 7, ... After being charged, the decomposition processing is performed in a relatively short time.

Microorganisms that propagate in the treatment medium 2 are roundworms,
Nematodes, protozoa, and other worms are roughly divided into fungi, such as cocci and bacilli, and the garbage in the treatment medium 2 is aerobic due to the rotation of the mixing blades 7, 7 during the garbage throwing and during the standby return. Final decomposition due to the action of the fungi active in the lower region B maintained in an anaerobic environment. It is decomposed into water and carbon dioxide.

A part of the water generated in this way is taken into the treatment medium 2 to maintain a humidity suitable for the growth of microorganisms, and most of the rest flows down into the treatment medium 2 to form a compartment. After passing through the plate 11, it is collected in the drainage section 10 and discharged to the sewage through the drainage port 12, the joint 13 and the drainage pipe 14. On the other hand, the generated carbon dioxide gas ascends in the processing medium 2 and flows out into the upper space of the processing tank 1, and an exhaust port (not shown) provided side by side in the storage space of the operation control unit 6 behind the top plate 3. And then released into the atmosphere.

In the apparatus of the present invention which operates as described above, the mixing blades 7, 7, ... Are mixed with the processing medium 2 by the rotation of the mixing blades 7, 7 ,.
A solidified layer C formed by compacting the treatment medium 2 is formed on the outer side of the rotation region of the above, and the water that is input together with the garbage from the garbage input port 31 and the water that is generated by the decomposition of the garbage are the solidified layer C. It stays as a pseudo bottom, and the processing capacity may be reduced due to the deterioration of the internal environment of the upper region A.

However, the formation position of the solidified layer C is a boundary between an upper region A in which the processing medium 2 is mixed by the rotation of the mixing blades 7, 7 ... And a lower region B in which this mixing is not performed. In the device of the present invention,
The rotation range of the stirring blades 8 arranged as described above includes the boundary between the upper region A and the lower region B, that is, the formation position of the solidified layer C, and rotationally drives the stirring motor M _2. By rotating the stirring blades 8, 8 ...
Part of the water can be destroyed, the retention of water using the coagulation layer C as a pseudo bottom is eliminated, and deterioration of the habitat of microorganisms in the mixing area and the resulting reduction in processing capacity are prevented. can do.

The stirring motor M ₂ is driven by the cover plate 60.
The operation switch (not shown) may be operated in response to an ON operation, but as in the case of the mixing motor M ₁ , it is automatically operated in response to a drive command from the operation control unit 6. desirable.

As described above, the stirring of the processing medium 2 by the rotation of the stirring blades 8 is intended to destroy the solidified layer C, and the drive command from the operation control unit 6 is the stirring blade 8. It is sufficient to make one rotation or several rotations of 8 ... Further, the drive command may be issued every time a predetermined time elapses, but it is desirable to be issued in response to the formation of the solidified layer C. In order to make this possible, the device of the present invention includes a water level sensor S ₁ and an odor sensor S ₂
And are provided.

When the solidified layer C is formed, this solidified layer C
The water stays in the upper region A with the pseudo bottom. The water level sensor S ₁ detects the water level of such accumulated water, and the solidification layer C
Of the mixing blades 7, 7, ..., As shown in FIG.
It is located slightly above the boundary between the upper region A and the lower region B, and is attached to the outside of the side wall on one side of the processing tank 1.

FIG. 3 is an enlarged sectional view of the water level sensor S ₁ . As shown in the figure, the water level sensor S ₁ has a low specific gravity inside the communication pipe 17 which is installed in a manner that its base end is communicated with the inside of the treatment tank 1 and rises substantially vertically along the side wall of the treatment tank 1. While the spherical floating body 18 is accommodated, the upper end of the communication pipe 17 is closed except for a small-diameter vent hole, and the microswitch 19 is fixedly installed inside the closed end.

The connecting position of the communicating pipe 17 is such that the communicating position with the processing tank 1 is the boundary between the upper region A and the lower region B, that is,
The height is set to be slightly higher than the height position where the solidified layer C is formed. Therefore, when the solidified layer C is formed in the treatment tank 1, the stagnant water having the solidified layer C as a pseudo bottom enters the communication pipe 17 and floats as the water level inside the treatment tank 1 rises. I will push up 18, and this floating body 18
When the microswitch 19 is turned on in response to the contact with the solidified layer C
Formation can be detected indirectly.

On the other hand, when the solidified layer C is formed, part of the kitchen waste dispersed in the upper area A is rotted due to deterioration of the internal environment of the upper area A due to the retention of water as described above. And a foul odor is generated. The odor sensor S ₂ is intended to indirectly detect the formation of the coagulation layer C using such a bad odor as a medium, and is attached to the upper inner wall of the processing tank 1 as shown in FIG. As this odor sensor S ₂ ,
Since the malodor generated by decay is a reducing gas having a specific functional group, a gas sensor using a metal oxide semiconductor capable of detecting this type of gas can be used. In addition to this, various odor sensors that have been put into practical use, such as an odor sensor using a synthetic bilayer film-covered crystal oscillator, can be used.

The detection results of the water level sensor S ₁ and the odor sensor S ₂ are given to the operation control unit 6, and the operation control unit 6
Performs an operation of issuing a drive command to the stirring motor M ₂ based on the detection results of both sensors S ₁ and S ₂ to rotate the stirring blades 8, 8 ... According to this configuration, when the solidified layer C is formed, the stirring operation of the stirring blades 8, 8 ... Is surely performed, while unnecessary driving of the stirring motor M ₂ can be avoided. It should be noted that only _{one of} the water level sensor S ₁ and the odor sensor S ₂ needs to be provided, but when both are provided as shown in this embodiment, as a means for complementing the other failure by the detection of each. Can be used.

Since the solidified layer C is formed due to the mixing by the mixing blades 7, 7, ..., The operation time of the mixing blades 7, 7, .. The drive command may be issued to the agitating motor M ₂ when the accumulated time reaches a predetermined time so that the agitating blades 8, 8 ... In this case, the accumulated time is used for predicting the formation of the solidified layer C, and not only the direct operation time of the mixing blades 7, 7 ... For mixing the processing medium 2 and the garbage, For example, the waiting time after this is multiplied by an appropriate weight and fed into the mixing blade 7,
A cumulative time that indirectly includes the operation times of 7 may be adopted.

FIG. 4 is a front sectional view showing another embodiment of the device of the present invention, and FIG. 5 is a side sectional view of the same. In this embodiment, below the protruding portion of the agitation shaft 80 to the outside of the processing tank 1, the operation shaft 90 extends horizontally between the side wall of the processing tank 1 and the exterior plate 5. Yes, the protruding end of the stirring shaft 80 is connected to the drive chain of the one-way clutch 9 mounted midway on the operation shaft 90.
It is connected through 91. The operating shaft 90 is the exterior plate 5
The operation pedal P is fitted to the extended end of the operation pedal P, and the rotation of the operation shaft 90 by the depression operation of the operation pedal P downward is performed via the one-way clutch 9 and the drive chain 91. Operation means is provided for transmitting to the stirring shaft 80 and performing stirring operation of the stirring blades 8, 8.

6 and 7 are explanatory views of the operation of the operating means. As shown in these figures, the one-way clutch 9 is
A claw wheel 9b coaxially fitted to the operation shaft 90 is relatively rotatably provided inside the outer cylinder 9a that also serves as a winding sprocket of the drive chain 91, and the base end is pivotally supported on the side surface of the outer cylinder 9a. The pressing springs 9e are respectively interposed between the plurality of locking pieces 9c and the separate pressing pieces 9d fixedly provided on the side surface of the outer cylinder 9a, and the spring force of the pressing springs 9e causes the locking pieces 9c to move. The tip end side is biased toward the outer circumference of the ratchet wheel 9b.

As shown in the figure, a plurality of locking claws each having a step portion on the same side in the circumferential direction are formed on the outer circumference of the ratchet wheel 9b, and the operation pedal P is not attached to the operation shaft 90. The rotation of the operating shaft 90 caused by the downward pressing operation of the operating pedal P (the pressing operation in the direction indicated by the white arrow in FIG. 6) is the outer circumference of the ratchet wheel 9b that rotates integrally with the operating shaft 90. It is set so that the stepped part is pressed against the locking piece 9c.

Further, the operation pedal P has the operation shaft 90
7 is urged upward by a tension spring 92 interposed between the intermediate part of the connecting rod connected to the bracket 50 and the bracket 50 fixed to the exterior plate 5, and the operation pedal P after the pedaling operation is shown in FIG. The tensile force of the tension spring 92 acting in the direction indicated by the hollow arrow causes the restoring operation, and the operation shaft 90 is caused to rotate in the direction opposite to the rotation due to the pedaling operation.

Thus, the rotation of the ratchet wheel 9b due to the depression of the operation pedal P causes the one-way clutch 9 to rotate through the locking piece 9c.
Of the outer cylinder 9a, as shown by the arrow in FIG.
A rotational force is applied to the stirring shaft 80, which is connected to the stirring shaft 80 via a drive chain 91, and the stirring blades 8, 8 ... Rotate by a predetermined angle to stir the processing medium 2 while the operation pedal P is returned. As shown in FIG. 7, the rotation of the ratchet wheel 9b is only used for pushing up the locking piece 9c and is not transmitted to the outer cylinder 9a and the stirring shaft 80.

As shown in FIG. 5, the operation pedal P is provided at a position where it is easy for the user to insert the garbage from the front side (the left side in the drawing) to easily step on the operation pedal.
For example, it is possible to prevent the formation of the solidified layer C inside the processing tank 1 by performing the stirring operation of the stirring blades 8, 8 ... You can In the present embodiment, the operation pedal P operated by the foot is used as the operation means for causing the stirring blades 8, 8 ... To perform the stirring operation, but other operations such as a handle operation by a hand or a lever operation are adopted. It goes without saying that means can be adopted.

FIG. 8 is a front sectional view showing still another embodiment of the device of the present invention, and FIG. 9 is a side sectional view of the same. In this embodiment, the structure of stirring means for stirring the boundary portion between the upper region A and the lower region B is different, and this stirring means is located below the mixing blades 7, 7, ... And a pair of stirring shafts 20 and 20 rotatably mounted horizontally about a substantially horizontal shaft center, with a plurality of stirring bars at appropriate intervals in the axial direction.
21, 21 ... are projected upward, and the stirring shafts 20, 20
Is connected to a stirring motor M ₃ which is fixed to the lower inside of the processing tank 1 and is capable of forward and reverse rotation.

As shown in FIG. 9, the agitation shafts 20 and 20 and the agitation motor M ₃ are connected to each other so that one ends of the agitation shafts 20 and 20 project to one side of the processing tank 1 and one of the projecting ends has a large and small size. The stepped sprockets 24 and the sprocket 25 at the other protruding end are respectively fitted, and the connecting chain 23 is wound between the small diameter portion of the sprocket 24 and the sprocket 25, while the large diameter portion of the sprocket 24 and the stirring Drive chain between the output end of the motor M ₃
It is made by winding 22.

As shown in FIG. 8, the projecting positions of the stirring rods 21, 21 ... Are set between the mixing blades 7, 7 ... And the stirring rods 21, 21 ... As shown in FIG. It has such a length that it can reach the solidification layer C formed on the rotating circumference of the mixing blades 7, 7. The stirring motor M ₃ is driven in accordance with a drive command given from the operation control unit 6 similarly to the stirring motor M ₁ in FIGS. 1 and 2, but this driving is repeated in a short cycle in which forward and reverse rotations are repeated. Performed such a stirring motor M
By driving ₃ , the stirring shafts 20, 20 and the plurality of stirring rods 21, 21 ... Protrudingly provided on these shafts respectively perform a swinging motion of a predetermined angle, and the solidified layer C is destroyed by this swinging. .

The stirring means characteristic of the present invention is the stirring blades 8, 8 ... Or the stirring rods 21, 21 ..
Not limited to this, any configuration may be used as long as it can act to stir the boundary portion of the region where the mixing is performed by the mixing blades 7, 7.

[0057]

As described in detail above, in the apparatus of the present invention, the stirring means is arranged at the boundary portion of the region where the mixing is performed by the mixing means, and the boundary portion is stirred by the operation of the stirring means. Therefore, the coagulation layer of the processing medium formed at the boundary portion can be appropriately destroyed by the mixing operation of the mixing means, the habitat environment of the microorganisms in the processing medium is always kept good, and the garbage processing capability is reduced. The present invention has excellent effects such as the prevention of the above.

[Brief description of drawings]

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

FIG. 2 is a side sectional view of the device of the present invention.

FIG. 3 is an enlarged cross-sectional view of a water level sensor.

FIG. 4 is a front sectional view showing another embodiment of the device of the present invention.

FIG. 5 is a side sectional view showing another embodiment of the device of the present invention.

FIG. 6 is an operation explanatory view of operation means for causing the stirring means to perform a stirring operation.

FIG. 7 is an operation explanatory view of the operating means for causing the stirring means to perform the stirring operation.

FIG. 8 is a front sectional view showing another embodiment of the device of the present invention.

FIG. 9 is a side sectional view showing another embodiment of the device of the present invention.

FIG. 10 is a front cross-sectional view of a conventional kitchen waste processing apparatus.

FIG. 11 is a side sectional view of a conventional garbage processing device.

[Explanation of symbols]

1 Processing Tank 2 Processing Medium 6 Operation Control Section 7 Mixing Blade 8 Stirring Blade 9 One-way Clutch 10 Draining Section 20 Stirring Shaft 21 Stirring Bar 31 Kitchen Waste Port 33 Lid Plate 70 Mixing Shaft 80 Stirring Shaft A Upper Area B Lower Area C Coagulation Layer M ₁ Mixing motor M ₂ Stirring motor M ₃ Stirring motor P Operation pedal S ₁ Water level sensor S ₂ Odor sensor

 ─────────────────────────────────────────────────── ─── 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 (5)

[Claims] 1. A processing tank containing a processing medium is provided with a mixing means that rotates about a horizontal axis, and the garbage that is thrown into the processing tank from above by the operation of the mixing means is mixed with the processing medium. A garbage treating apparatus for decomposing treatment by the activity of microorganisms propagated in the treating medium, comprising a stirring means for stirring the boundary portion of the region where the mixing is performed. 2. The kitchen waste processing apparatus according to claim 1, further comprising operation means mechanically connected to the stirring means and extending outside the processing tank, the operation means causing the stirring means to perform a stirring operation. 3. A motor for driving the stirring means, a water level sensor for detecting a water level of water retained in the region where the mixing is performed, and the motor is driven based on a detection result of the water level sensor, The kitchen waste processing apparatus according to claim 1, further comprising a control unit that causes the stirring unit to perform a stirring operation. 4. A motor for driving the stirring means, an odor sensor disposed inside the processing tank, and the motor is driven based on the detection result of the odor sensor to cause the stirring means to perform a stirring operation. The kitchen waste processing apparatus according to claim 1, further comprising: a control unit configured to perform the operation. 5. A motor for driving the stirring means, an accumulating means for accumulating the operating time of the mixing means directly or indirectly, and driving the motor according to the cumulative time of the accumulating means. The kitchen waste processing apparatus according to claim 1, further comprising a control unit that causes the stirring unit to perform a stirring operation.