JPH06296947A - Garbage disposal device - Google Patents

Abstract

PURPOSE:To enhance the decomposition disposed efficiency of garbage and to improve purification performance by housing treating media for culturing bacteria to decompose the garbage in a treating vessel provided with a garbage charge port in the upper part and disposing agitating vanes in the upper part in this treating vessel and a heating means in the lower part, respectively. CONSTITUTION:The treating media, such as fine wooden pieces including saw dust, chaff and rice bran, for culturing the bacteria to decompose the garbage are housed in the treating vessel 1 provided with the garbage charge port 30 closed by a cap body 45 in the upper part. The treating vessel 1 is internally provided horizontally with the agitating vanes 11 rotated by a motor in a treating section 3 in the upper part of the vessel to generate bacilli and cocci by mixing the garbage charged into the vessel 1 with the treating media. The garbage is decayed by the bacilli and is decomposed to water and carbon dioxide by the cocci to dissipate the garbage. The water generated by decomposition of the garbage is drained together with the water supplied to the treating vessel 1 through a purifying section 4 from a drain section 21. The purifying section 4 is provided with the heating means 18 and is kept at a temp. at which the bacteria are activated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a garbage disposal device for decomposing garbage.

[0002]

2. Description of the Related Art Conventionally, a so-called composter has been widely used as this type of garbage processing device. The composter is
It is composed of a tubular body and a lid covering the top opening of the tubular body,
The lower surface opening of the tubular body is placed on the ground surface, and the garbage thrown into the tubular body through the upper surface opening is composted by soil fungi, but the composting speed is slow and there is a problem in processing capacity.

[0003] Further, there is one in which kitchen waste is crushed and dehydrated, and it is automatically dumped in a garbage bag or the like, for example, Japanese Patent Laid-Open No. 4-15.
6959 (B02C 21/00) and the like. However, in this method, it is necessary to dispose of the kitchen waste stored in a garbage bag or the like, which requires a lot of time and labor for disposal, and poses a problem regarding environmental protection.

In order to solve these problems, there is a kitchen waste disposal apparatus which disposes kitchen waste in a processing tank containing a processing medium for culturing bacteria and decomposes the kitchen waste by the bacteria in Japanese Utility Model Publication No. 2-1291 (B09B 3). / 00), Japanese Utility Model Publication No. 2-125942 (C05F 9/02)
Etc. These kitchen waste treatment devices discharge the water supplied together with the kitchen waste and the water generated by the decomposition of the kitchen waste as they are, so that the BOD value of the waste water is high and there is a big problem for environmental protection.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned drawbacks, and an object of the present invention is to provide a garbage disposal device capable of decomposing garbage and treating wastewater.

[0006]

The first means of the present invention is to:
A treatment tank having a garbage throwing port formed in an upper portion, a treatment medium housed in the treatment tank, for culturing a bacterium for decomposing and treating the garbage supplied to the treatment tank, and an electric motor disposed in the treatment tank And a stirring blade that mixes the processing medium with the kitchen waste by rotating the processing medium, the stirring blade is disposed in the upper portion of the processing medium, and the stirring blade is located above the processing medium, and the stirring blade is located below the processing medium. And a heating means for heating the processing medium are arranged in the cleaning section.

The second means of the present invention is a treatment tank having a garbage throwing port formed in an upper portion thereof, and a treatment medium for culturing a bacterium which is housed in the treatment tank and decomposes the garbage supplied to the treatment tank. And a stirring blade that is disposed in the processing tank and is driven to rotate by an electric motor to mix the processing medium and the garbage, the stirring blade is disposed in an upper portion of the processing medium, and the stirring blade is disposed above the processing medium. Is formed, and a purifying unit in which a stirring blade is not positioned is formed below the treatment medium, and heating means for heating the treatment medium is arranged above the purifying unit.

[0008]

According to the above construction, the garbage thrown into the treatment tank through the garbage feeding port is mixed with the treatment medium of the treatment section by the rotation of the stirring blade and decomposed by the bacteria generated in the treatment medium of the treatment section. It Water produced by decomposing kitchen waste contains components such as acetaldehyde, lower fatty acids, sulfur compounds and nitrogen compounds that are produced during the process of decomposing kitchen waste into water and carbon dioxide gas. Is decomposed by bacteria generated in the treatment medium of the purification section and purified water is discharged.

Air is supplied to the processing medium of the processing unit by the rotation of the stirring blades to activate aerobic bacteria, and the rotation of the stirring blades gradually activates the anaerobic bacteria. By alternately activating aerobic and anaerobic bacteria, the efficiency of kitchen waste decomposition treatment is improved.

When the aerobic bacteria are activated, heat is generated due to the decomposition action of the aerobic bacteria, and the temperature of the treatment section rises. However, almost no heat is generated due to the decomposition action of the anaerobic bacteria.
The temperature of the purification unit becomes lower than that of the treatment unit, and when the temperature is low, the ability of the purification unit to decompose bacteria decreases. By arranging the heating means in the purifying section, the temperature of the purifying section is particularly raised to activate the bacteria in the purifying section to improve the purifying ability.

Further, by disposing the heating means in the upper part of the purifying section, the heating means is located near the center of the treatment medium, and the heat of the heating means not only the temperature of the purifying section but also the temperature of the treating section. It raises the temperature and activates the bacteria in the treatment section and the purification section to improve the decomposition ability and the purification ability.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail with reference to FIGS.

Reference numeral 1 denotes a processing tank made of synthetic resin having an open top surface, in which a processing medium 2 is stored. The treatment medium 2 is made of wood chips such as sawdust, husks, rice bran, and soil for culturing microorganisms. In this embodiment, Japanese Patent Publication No. 2-34679 (C02F).
11/02) The microbial culture substrate shown in "Method for treating microorganisms in sludge with wood chips" is used. This processing medium 2
When kitchen waste is mixed with bacilli, bacilli and cocci are generated, the bacilli corrode the kitchen bacilli, and the cocci are decomposed into water and carbon dioxide gas to eliminate the kitchen waste. The upper part of the processing medium 2 in the processing tank 1 is a processing part 3 where a stirring blade 11 described later is located, and the lower part thereof where the stirring blade 11 is not located is a purification part 4.

Reference numeral 5 denotes an electric motor housing portion which is recessed in the upper part of the processing tank 1 and is provided substantially above the processing medium 2 to prevent the amount of the processing medium 2 housed in the processing tank 1 from decreasing. There is. 6 is a first reinforcing plate fixed to one side surface of the processing tank 1, 7 is a second reinforcing plate fixed to the other side surface facing the one side surface of the processing tank 1 to which the first reinforcing plate 6 is fixed, First
Bearings 8 that support later-described stirring blades 11 are fixed to the reinforcing plate 6 and the second reinforcing plate 7, respectively. A forward / reverse reversible electric motor 9 housed in the electric motor housing portion 5 is fixed to the first reinforcing plate 6, and a reinforcing rib 10 is formed substantially parallel to an imaginary line connecting the electric motor 9 and the bearing 8. The deformation of the processing tank 1 when the stirring blade 11 is rotated by driving 9 is further reduced.

Reference numeral 11 denotes a stirring blade arranged in the processing section 3 above the processing medium 2, a rotating shaft 12 rotatably supported by the bearing 8 and a plurality of stirring blades fixed to the rotating shaft 12. The rotary shaft 12 and the stirring blade 13 are made of stainless steel. The stirring blade 13 is formed in a substantially V-shaped cross section, is curved toward the ridge side thereof, and is fixed to the rotating shaft 12 by welding in a spiral shape. Reference numeral 14 denotes a sprocket that is fixed to the rotation shaft 12 by a detent, and a chain 16 is installed between the sprocket 15 that is fixed to a drive shaft of the electric motor 9 and is agitated by the drive of the electric motor 9 through the chain 16. It is designed to rotate the wings 11. A pressing member 17 is swingably supported by the first reinforcing plate 6 and is biased toward the chain 16 to prevent the chain 16 from loosening.

Reference numeral 18 denotes a heating means arranged in the processing tank 1, a stainless steel pipe 20 fixed to the side surface of the processing tank 1 via a heat insulating material 19, and a heater 21 arranged in the pipe 20.
It consists of and. The heating means 18 is the purification unit 4
By locating the upper part of the treatment medium 2 in the substantially central portion of the whole treatment medium 2, the temperature at which the rods and cocci generated in the treatment medium 2 are activated, in this embodiment, about 30 ° C to 50 ° C.
It is designed to be maintained at ℃.

Reference numeral 21 denotes a drainage section defined by a metal partition plate 22 having a large number of small holes so that the processing medium 2 does not leak in the lower portion of the processing tank 1, and has a drainage tube 23. Reference numeral 24 is a cap that is detachably mounted by being screwed into the drain tube 23, and has a drain port 25 to which a drain hose (not shown) is connected.

Reference numeral 26 denotes a substantially T-shaped metal lower reinforcing plate fixed to both sides of the drainage portion 21 on the lower surface of the processing tank 1, and having a rising piece 27 bent along the side surface of the processing tank 1. . Reference numeral 28 is a cylindrical metal side wall plate that covers the periphery of the processing tank 1, and is mounted on the rising piece 27 of the lower reinforcing plate 26 and fixed by screws.

29 is placed on the side wall plate 28,
A top plate made of synthetic resin, which is screw-fixed to, has a kitchen throwing port 30 formed from one side surface in the longitudinal direction toward the other side surface facing the side surface. An inclined surface 31 is formed below the garbage input port 30 and gradually inclines downward toward the other side surface, and the lower end of the inclined surface 31 is opened 32 to communicate the garbage input port 30 with the inside of the processing tank 1. is doing. Reference numeral 33 denotes a shutter swingably supported by the top plate 29, which maintains a state in which the opening 32 is closed by its own weight, and swings by the kitchen waste that is thrown in from the garbage throwing port 30 and slides down the inclined surface 31 to open 33. Is open. 34 is an annular rib that is formed so as to hang down from the top plate 29.
Is brought into contact with the peripheral edge of the opening on the upper surface of the processing tank 1 through
The inside air is prevented from leaking between the processing tank 1 and the side wall plate 28 through the opening on the upper surface of the processing tank 1.

Reference numeral 36 denotes a board housing portion provided between the kitchen throw-in port 30 of the top plate 29 and the other side surface, and houses a board 37 on which switches and circuit components are mounted. 38 is the substrate storage section
A large number of exhaust holes 40 are formed in the exhaust portion formed adjacent to the substrate 36 and separated from the substrate housing portion 36 by the ribs 39.
The inside of the processing tank 1 and the exhaust part 38 are communicated with each other through the ribs, and the rib 39 prevents the air in the processing tank 1 from leaking to the substrate storage part 36. Reference numeral 41 is a cover that covers the board housing section 36 and the exhaust section 38 and is fixed to the top plate 29. The cover 41 has an operation section 42 for operating switches mounted on the board 37,
A hanging piece 43 hanging downward is formed on the other side surface of 29, and a space is formed between the cover 41 and the exhaust portion 38 and between the other side surface of the top plate 29 and the hanging piece 43 of the cover 41. As a result, an exhaust passage 44 is formed that allows the inside of the processing tank 1 to communicate with the outside air via the exhaust hole 40. Since the hanging piece 43 extends below the upper surface of the exhaust portion 38, the exhaust portion 38 cannot be seen and the exhaust passage
By bending 44, it is possible to prevent insects from entering.

Reference numeral 45 denotes a lid body which is swingably supported by the top plate 29 and covers the garbage throwing port 30, and the opening of the lid body 45 is detected by a detecting means such as a micro switch (not shown). .

Next, the circuit will be described with reference to FIG. 46
Is a switch circuit having a switch mounted on the substrate 37, 47 is a detection means such as a micro switch for detecting the opening of the lid 45, 48 is a temperature sensor for detecting the outside air temperature, 49 is the switch circuit 46, and detection means A control circuit including a microcomputer for inputting signals from the 47 and the temperature sensor 48, and a motor drive unit 50 for controlling the drive of the electric motor 9 and a heater.
The heater control unit 51 that controls the energization of the heater 21 is controlled.

When the kitchen waste is processed, the lid 45 is opened, the kitchen waste is dropped from the kitchen input port 30 to the inclined surface 31, and the kitchen waste is poured into the processing tank 1 together with water. At this time, the lid 45 is opened so as to cover the operation portion 42 as shown in FIG.
The operation unit 42 will not be accidentally operated with the lid body 45 opened. Further, even if the operation section 42 is operated with the lid 45 opened, the detection means 47 detects the opening of the lid 45, and the control circuit
Since 49 stops the energization of the electric motor 9, the stirring blade 11 does not rotate with the lid 45 opened.

When the garbage is thrown in, the lid 45 is closed and the operating portion 42 is operated. In this state, the control circuit 49
Receives a signal from the detecting means 47 indicating the closure of the lid 45, operates the operating section 42 to rotate the electric motor 9 in the forward direction, and rotates the stirring blade 11 in the direction of the solid arrow shown in FIG. Stirring blade 11
Rotates toward the V-shaped ridgeline side of the stirring blade 13, so that the garbage and the processing medium 2 are easily pushed in the axial direction and rotate with a relatively small load. Further, since the stirring blade 13 is curved toward the ridge line side, the kitchen waste located on the processing medium 2 is efficiently drawn into the processing medium 2 and is efficiently mixed with the processing medium 2 in a short period of time. Further, since the stirring blades 13 are arranged in a spiral shape, the kitchen waste and the processing medium 2 are moved not only in the rotation direction but also in the axial direction to stir,
The stirring efficiency is further improved.

The control circuit 49 stops the operation when the electric motor 9 is normally rotated for 20 seconds in the present embodiment for a fixed time, and after a predetermined time until the electric motor 9 is completely stopped, 3 seconds elapses in the present embodiment. After that, the electric motor 9 is rotated in the reverse direction, and the stirring blade 11 is rotated in the direction of the broken line arrow shown in FIG. Since the control circuit 49 reversely rotates the electric motor 9 after the electric motor 9 is completely stopped, the electric motor 9
The back electromotive force does not occur at the time of starting, and the durability of the electric motor 9 can be improved. In the reverse rotation state of the electric motor 9, the stirring blade 13 stirs the garbage and the treatment medium 2 while pushing them to the outer periphery, and crushes the garbage between the side wall of the treatment tank 1. This rotation direction has a larger load than the rotation in the normal rotation direction, but the crushing ability is improved.

The control circuit 49 reverses the electric motor 9 for a certain period of time, 20 seconds in this embodiment, and causes the electric motor 9 to normally rotate again after a predetermined time until the electric motor 9 is completely stopped. The normal rotation and the reverse rotation are alternately repeated, and the operation is stopped when a total of 20 minutes has passed.

Further, the control circuit 49 inputs a signal from the temperature sensor 48, and when the outside air temperature is lower than 20 ° C., the heater 21 is energized to heat the processing medium 2. The temperature inside the treatment tank 1 is higher than the outside air temperature due to the heat generated when the bacteria decompose the garbage, and if the outside air temperature is 20 ° C or higher, the inside of the treatment tank 1 will reach a temperature at which the bacteria are activated. Has been maintained.

The garbage in the treatment tank 1 is decomposed into water and carbon dioxide gas by the naturally occurring bacilli and cocci in the treatment medium 2 and disappears. By rotating the stirring blade 11, air is supplied to the processing medium 2 of the processing unit 3, and the activity of aerobic bacteria generated in the processing medium 2 is activated. When the rotation of the stirring blade 11 is stopped, the supply of air to the treatment medium 2 is stopped, so that the activity of the anaerobic bacteria generated in the treatment medium 2 is gradually activated, and by repeating this alternately, the kitchen waste can be efficiently recycled. Disassemble and extinguish. Since the garbage supplied to the processing tank 1 is crushed between the stirring blade 11 and the side wall of the processing tank 1, the kitchen waste decomposes and disappears in a relatively short time. Further, since the treatment medium 2 is maintained at the temperature at which the bacteria are activated by the heating means 18, the activities of the bacilli and cocci are activated, and the decomposition and extinction efficiency of the garbage is further improved.

The water supplied to the treatment tank 1 together with the garbage is
The water generated by decomposing the kitchen waste passes through the purification unit 4 and is drained to the drainage unit 21. This water contains components that are produced in the process until the garbage is completely decomposed, that is, lower fatty acids such as acetic acid and propionic acid, sulfur compounds such as hydrogen sulfide and methyl sulfide, nitrogen compounds such as ammonia, and acetaldehyde. However, this component is purified by the purification unit 4
It is decomposed by the bacteria that propagate in the treatment medium 2, purified, and discharged to the drainage section 21. Almost no air is supplied to the purifying unit 4, and anaerobic bacteria are generated in the treatment medium 2 of the purifying unit 4. However, heat generation is small due to the decomposition action of the anaerobic bacteria,
The temperature of the purification unit 4 becomes lower than the temperature of the processing unit 3. In the present embodiment, since the heating means 18 is provided in the purifying unit 4, the temperature of the purifying unit 4 can be raised to activate the activity of the bacteria in the purifying unit 4 and improve the purifying action. You can

The water drained to the drain section 21 is drained from the drain pipe through the drain port 25. When the partition plate 22 or the drain port 25 that partitions the drainage part 21 is clogged, the cap 24 is removed from the drain tube 23, and a brush or the like is inserted into the drainage part 21 through the drain tube 23 to clean the partition plate 22. Then, clean the drain port 25.

When repairing damage to the electric motor 9 and the chain 16, the top plate 29 is removed from the side wall plate 28 and the lower reinforcing plate 26
By removing the screw fixing of the side wall plate 28 and pulling out the side wall plate 28 upward, the electric motor 9 and the chain 16 can be easily exposed, and the repair workability can be improved.

[0032]

As described above, according to the constitution of claim 1 of the present invention, the garbage can be decomposed in the treatment section, and the components contained in the waste water from the treatment section are purified in the purification section. Can be purified and drained. In addition, by heating the purifying unit at a temperature relatively lower than that of the treatment unit, it is possible to activate the bacteria in the purifying unit, and it is possible to improve the purifying ability.

According to the second aspect of the present invention, the garbage can be decomposed in the treatment section, and the components contained in the wastewater from the treatment section are purified in the purification section before being discharged. You can Further, by disposing the heating means on the upper part of the purifying section, the heating means can be arranged at a position close to the center of the treatment medium, and the entire treatment medium is heated to improve the garbage decomposing ability and the wastewater purifying ability. There are effects such as being able to.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention.

FIG. 2 is a cross-sectional view seen from the other direction.

FIG. 3 is a cross-sectional view showing an open state of the lid body.

FIG. 4 is a side view in which the side wall plate is cut away.

FIG. 5 is a top view of the same.

FIG. 6 is an enlarged cross-sectional view of the relevant part.

FIG. 7 is a circuit diagram of the same.

[Explanation of Codes] 1 processing tank 2 processing medium 3 processing section 4 purification section 9 electric motor 11 stirring blade 18 heating means 30 kitchen waste inlet

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masahiko Asada 2-18 Keihanhondori, Moriguchi City, Osaka Sanyo Electric Co., Ltd. (72) Itoyo Takama 2-18th Keihanhondori, Moriguchi City, Osaka Sanyo Electric Co., Ltd.

Claims (2)

[Claims] 1. A treatment tank having a kitchen waste inlet formed at the top,
A treatment medium, which is housed in the treatment tank and is supplied to the treatment tank, for culturing bacteria for decomposing and treating garbage, and a treatment medium disposed in the treatment tank and rotationally driven by an electric motor to mix the treatment medium and the garbage A stirring blade is provided, the stirring blade is disposed in an upper portion of the processing medium, and a processing unit in which the stirring blade is positioned above the processing medium and a purifying unit in which the stirring blade is not positioned below the processing medium are formed. A garbage treatment device, wherein heating means for heating a treatment medium is arranged in the purifying section. 2. A treatment tank having a kitchen throwing port formed in the upper part,
A treatment medium, which is housed in the treatment tank and is supplied to the treatment tank, for culturing bacteria for decomposing and treating garbage, and a treatment medium disposed in the treatment tank and rotationally driven by an electric motor to mix the treatment medium and the garbage A stirring blade is provided, the stirring blade is disposed in an upper portion of the processing medium, and a processing unit in which the stirring blade is positioned above the processing medium and a purifying unit in which the stirring blade is not positioned below the processing medium are formed. A kitchen treatment apparatus, wherein a heating means for heating the treatment medium is arranged above the purifying unit.