JP3229702B2 - Garbage processing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a garbage processing apparatus for decomposing kitchen garbage.

[0002]

2. Description of the Related Art Conventionally, a so-called composter has been widely used as this kind of kitchen waste disposal apparatus. Composter
It is composed of a tubular body and a lid that covers the upper surface opening of the tubular body,
The lower surface opening of the cylindrical body is placed on the ground surface, and the garbage put into the cylindrical body from the upper surface opening is composted with soil bacteria. However, the composting speed is slow and there is a problem in the processing capacity.

[0003] Further, there is a method in which garbage is crushed and dehydrated, and the garbage is automatically dumped in a trash bag.
No. 6959 (B02C 21/00). However, in this method, it is necessary to dispose of the garbage stored in the garbage bag or the like, which requires time and effort for disposal treatment and also poses a problem in terms of environmental conservation.

[0004] To solve these problems, a garbage disposal apparatus for disposing of garbage in a treatment tank containing a treatment medium for culturing bacteria and decomposing the garbage with bacteria is disclosed in Japanese Utility Model Laid-Open No. 2-1291 (B09B3). / 00), Japanese Utility Model Laid-Open No. 2-125942 (C05F 9/02)
And so on. Since these kitchen waste treatment devices drain the water supplied together with the kitchen waste and the water generated by the decomposition of the kitchen waste as it is, the BOD value of the waste water is high, and this has a serious problem for environmental conservation.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned drawbacks, and has as its object to provide a kitchen waste treatment apparatus capable of decomposing kitchen waste and purifying waste water.

[0006]

A first means of the present invention is as follows.
A processing tank having a kitchen refuse inlet formed at an upper portion thereof, a processing medium accommodated in the processing tank, and a culture medium for culturing bacteria for decomposing the garbage supplied to the processing tank, and an electric motor disposed in the processing tank. A stirring blade that is driven to rotate to mix the processing medium and the garbage, the stirring blade is disposed in the upper portion of the processing medium, and the processing blade has the stirring blade positioned above the processing medium; and the stirring blade is positioned below the processing medium. And a heating unit for heating the processing medium is disposed in the purification unit.

[0007] A second means of the present invention is a processing tank having an upper portion formed with a garbage charging port, and a processing medium for culturing bacteria which are housed in the processing tank and which decompose the garbage supplied to the processing tank. And a stirring blade that is disposed in the processing tank and that is rotated and driven 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 a stirring blade is provided in an upper portion of the processing medium. And a purifying section in which no stirring blade is located below the processing medium, and a heating means for heating the processing medium is disposed above the purifying section.

[0008]

According to the above construction, the garbage introduced into the processing tank from the garbage charging port is mixed with the processing medium of the processing section by the rotation of the stirring blade, and is decomposed by bacteria generated in the processing medium of the processing section. You. Water generated by decomposing garbage contains components such as acetaldehyde, lower fatty acids, sulfur compounds, and nitrogen compounds that are generated on the way to decomposing garbage into water and carbon dioxide. Is decomposed by bacteria generated in the processing medium of the purification section to be purified water, and is discharged.

[0009] Air is supplied to the processing medium of the processing section by the rotation of the stirring blade, whereby aerobic bacteria are activated, and by stopping rotation of the stirring blade, anaerobic bacteria are gradually activated. By alternately activating the aerobic and anaerobic bacteria, the efficiency of decomposing garbage is improved.

[0010] When the aerobic bacteria are activated, heat is generated by the decomposition thereof, and the temperature of the treatment section is increased. However, heat is hardly generated by the decomposition of the anaerobic bacteria.
The temperature of the purifying unit is lower than that of the processing unit. When the temperature is low, the ability of the purifying unit to decompose bacteria is reduced. By arranging the heating means in the purifying section, the temperature of the purifying section is particularly increased, and the bacteria in the purifying section are activated to improve the purifying ability.

Further, by disposing the heating means above the purifying section, the heating means is located near the center of the processing medium, and the heat generated by the heating means causes not only the temperature of the purifying section but also the temperature of the processing section. As a result, the bacteria in the treatment section and the purification section are activated to improve the decomposition ability and the purification ability.

[0012]

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

Reference numeral 1 denotes a processing tank made of a synthetic resin having an open upper surface, in which a processing medium 2 is accommodated. The processing medium 2 is composed of a microbial culture substrate such as wood chips such as sawdust, rice husk, rice bran, and soil. In this embodiment, Japanese Patent Publication No. 2-34679 (C02F
11/02) The microorganism culture substrate shown in "Method of treating sludge with microorganisms of wood" is used. This processing medium 2
When garbage is mixed, bacilli and cocci are generated, the bacilli corrode the garbage, and the cocci are decomposed into water and carbon dioxide, and the garbage is extinguished. The upper part of the processing medium 2 in the processing tank 1 is the processing part 3 where the stirring blades 11 described below are located, and the part where the lower stirring blades 11 are not located is the purifying part 4.

Reference numeral 5 denotes an electric motor housing recessed in the upper part of the processing tank 1, which is provided substantially above the processing medium 2 to prevent the amount of the processing medium 2 stored in the processing tank 1 from decreasing. I have. Reference numeral 6 denotes a first reinforcing plate fixed to one side of the processing tank 1, 7 denotes a second reinforcing plate fixed to the other side of the processing tank 1 opposite to the side to which the first reinforcing plate 6 is fixed, First
To the reinforcing plate 6 and the second reinforcing plate 7, a bearing 8 that supports a stirring blade 11 described later is fixed, respectively. The first reinforcing plate 6 is fixed with a forward / reverse rotating motor 9 housed in the motor housing 5, and has a reinforcing rib 10 formed substantially parallel to an imaginary line connecting the motor 9 and the bearing 8. 9 is driven to further reduce the deformation of the processing tank 1 when the stirring blade 11 is rotated.

Numeral 11 denotes a stirring blade disposed in the processing section 3 in the upper portion of 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. 13, and the rotating shaft 12 and the stirring blade 13 are formed of stainless steel. The stirring blade 13 has a substantially V-shaped cross section, is curved toward the ridge line side, and is helically fixed to the rotating shaft 12 by welding. Reference numeral 14 denotes a sprocket fixed to the rotation shaft 12 to prevent rotation. A sprocket 15 fixed to the rotation shaft of the electric motor 9 is provided with a chain 16 therebetween. The sprocket is stirred by the driving of the electric motor 9 via the chain 16. The wing 11 is rotated. A pressing member 17 is swingably supported by the first reinforcing plate 6 and is urged toward the chain 16 to prevent the chain 16 from loosening.

Numeral 18 denotes a heating means provided 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 provided in the pipe 20.
It is composed of The heating means 18 is provided in the purifying section 4.
Of the processing medium 2 at a temperature at which bacilli and cocci generated in the processing medium 2 are activated. In this embodiment, the temperature is about 30 ° C. to 50 ° C.
℃.

Reference numeral 21 denotes a drainage section defined by a metal partitioning plate 22 having a large number of small holes formed in the lower part of the processing tank 1 so that the processing medium 2 does not leak. Reference numeral 24 denotes a cap which is detachably mounted by being screwed to the drainage cylinder 23, and has a drainage port 25 to which a drainage 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 has a rising piece 27 bent along the side of the processing tank 1. . Reference numeral 28 denotes a cylindrical metal side wall plate which 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.

The reference numeral 29 denotes a plate mounted on the side wall plate 28,
The garbage input port 30 is formed from one side surface in the longitudinal direction to the opposite side surface with a synthetic resin top plate fixed with screws. Below the garbage inlet 30, an inclined surface 31 is formed which is gradually inclined downward toward the other side surface, and the lower end of the inclined surface 31 is opened 32 to communicate the garbage inlet 30 with the inside of the treatment tank 1. are doing. Reference numeral 33 denotes a shutter swingably supported by the top plate 29, which maintains the state of closing the opening 32 by its own weight, and swings by the garbage that is thrown from the garbage insertion opening 30 and slides down the inclined surface 31 to open the opening 33. Is to be released. Numeral 34 denotes an annular rib formed by hanging from the top plate 29.
Abuts on the peripheral edge of the opening on the upper surface of the processing tank 1
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 substrate storage portion provided between the kitchen waste inlet 30 of the top plate 29 and the other side surface, and stores a substrate 37 on which switches and circuit components are mounted. 38 is the board storage section
A plurality of exhaust holes 40 are formed in the exhaust unit formed adjacent to the substrate 36 and separated from the substrate storage unit 36 by the ribs 39.
The inside of the processing tank 1 and the exhaust unit 38 are communicated with each other through the ribs 39, and the air in the processing tank 1 is prevented from leaking to the substrate storage unit 36 by the rib 39. Reference numeral 41 denotes a cover that covers the substrate storage unit 36 and the exhaust unit 38 and is fixed to the top plate 29. The cover 41 includes an operation unit 42 for operating a switch mounted on the substrate 37, and a top plate.
A hanging piece 43 hanging downward is formed on the other side surface of the cover 29, and a gap 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. Thus, an exhaust path 44 for communicating the inside of the processing tank 1 with the outside air through an exhaust hole 40 is formed. Since the hanging piece 43 extends below the upper surface of the exhaust part 38, the exhaust part 38 is not visible, and
The 44 can be bent to prevent the invasion of insects and the like.

Reference numeral 45 denotes a cover which is swingably supported by the top plate 29 and covers the garbage insertion opening 30. The opening of the cover 45 is detected by detecting means (not shown) such as a microswitch. .

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 detecting 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 detecting means. A motor drive unit 50 for controlling the driving of the motor 9 and a heater
The heater control unit 51 that controls the energization of the heater 21 is controlled.

When processing the garbage, the lid 45 is opened, the garbage is dropped from the garbage inlet 30 onto the inclined surface 31, and the garbage is poured into the processing tank 1 together with water. At this time, the lid 45 is opened so as to cover the operation unit 42 as shown in FIG.
There is no possibility that the operation unit 42 is operated accidentally with the lid 45 opened. Further, even if the operation unit 42 is operated with the lid 45 opened, the detecting means 47 detects the opening of the lid 45, and the control circuit
Since the power supply 49 to the electric motor 9 is stopped, the stirring blade 11 does not rotate with the lid 45 opened.

When the input of the kitchen waste is completed, the cover 45 is closed, and the operation unit 42 is operated. In this state, the control circuit 49
Receives a signal indicating that the lid 45 is closed from the detection means 47, rotates the electric motor 9 forward by operating the operation section 42, and rotates the stirring blade 11 in the direction of the solid arrow shown in FIG. Stirrer blade 11
Is rotated toward the V-shaped bent ridge of the stirring blade 13, so that the kitchen waste and the processing medium 2 are easily pushed in the axial direction and rotated with a relatively small load. Further, since the stirring blade 13 is curved toward the ridge line, the garbage located on the processing medium 2 is efficiently drawn into the processing medium 2 and efficiently mixed with the processing medium 2 in a short time. Further, since the stirring blades 13 are arranged in a spiral shape, the kitchen waste and the processing medium 2 are not only rotated in the rotation direction but also moved in the axial direction and stirred.
The stirring efficiency is further improved.

The control circuit 49 stops the operation when the motor 9 is rotated forward for a predetermined time, for example, 20 seconds in this embodiment, and after a predetermined time until the motor 9 is completely stopped, 3 seconds elapse in this embodiment. Thereafter, the electric motor 9 is rotated in the reverse direction, and the stirring blade 11 is rotated in the direction of the dashed arrow shown in FIG. The control circuit 49 reversely rotates the motor 9 after the motor 9 is completely stopped.
No back electromotive force is generated at the start of the motor 9, 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 processing medium 2 while forcing the garbage and the processing medium 2 to the outer periphery, and crushes the garbage between the processing tank 1 and the side wall. In this rotation direction, the load is larger than in the rotation in the normal rotation direction, but the crushing ability is improved.

When the control circuit 49 reversely rotates the motor 9 for a certain period of time, in this embodiment, for 20 seconds, it rotates forward again after a predetermined time until the motor 9 is completely stopped. The normal rotation and the reverse rotation are alternately repeated, and the operation is stopped after a lapse of a total of 20 minutes.

The control circuit 49 receives a signal from the temperature sensor 48, and if the outside air temperature is lower than 20 ° C., energizes the heater 21 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. If the outside air temperature is 20 ° C. or higher, the inside of the treatment tank 1 will reach the temperature at which the bacteria are activated. Has been maintained.

The garbage in the treatment tank 1 is decomposed into water and carbon dioxide by bacilli and cocci naturally occurring 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 processing medium 2 is stopped, so that the activity of anaerobic bacteria generated in the processing medium 2 is gradually activated. Decompose 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, it is eliminated in a relatively short time. In addition, since the treatment medium 2 is maintained at a temperature at which the bacteria are activated by the heating means 18, the activities of the bacilli and cocci are activated, and the efficiency of eliminating garbage is further improved.

The water supplied to the treatment tank 1 together with the garbage is
The garbage passes through the purification unit 4 together with the water generated by decomposing the garbage, and is discharged to the drain unit 21. This water contains components generated 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. Although this component has been
Is decomposed by bacteria propagating in the processing medium 2, purified, and drained to the drain section 21. Almost no air is supplied to the purifying section 4 and anaerobic bacteria are generated in the processing medium 2 of the purifying section 4. However, the decomposition action by the anaerobic bacteria generates little heat,
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 purification unit 4, the temperature of the purification unit 4 can be increased to activate the activity of the bacteria in the purification unit 4, thereby improving the purification action. Can be.

The water discharged to the drain 21 is drained from a drain pipe through a drain 25. If the partition plate 22 or the drain port 25 that partitions the drainage section 21 is clogged, remove the cap 24 from the drainage pipe 23 and insert a brush or the like into the drainage section 21 through the drainage pipe 23 to clean the partition plate 22. Then, the drain 25 is cleaned.

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 unscrewing the side wall plate 28 and removing 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 first aspect of the present invention, kitchen garbage can be decomposed in the processing section, and components contained in wastewater from the processing section can be purified in the purification section. It can be purified and drained. In addition, by heating the purifying unit, which is at a relatively low temperature from the processing unit, it is possible to activate the bacteria in the purifying unit, and it is possible to improve the purifying ability.

According to the configuration of claim 2 of the present invention, the kitchen waste can be decomposed in the processing section, and the components contained in the wastewater from the processing section can be purified and discharged in the purification section. Can be. In addition, by arranging the heating means at the upper part of the purification section, the heating means can be arranged at a location near the center of the processing medium, thereby heating the entire processing medium to improve the ability to decompose kitchen garbage and purify wastewater. And the like.

[Brief description of the drawings]

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

FIG. 2 is a cross-sectional view as viewed from another direction.

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

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

FIG. 5 is a top view of the same.

FIG. 6 is an enlarged sectional view of the main part.

FIG. 7 is the same circuit diagram.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Processing tank 2 Processing medium 3 Processing part 4 Purification part 9 Motor 11 Stirrer blade 18 Heating means 30 Garbage inlet

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Masahiko Asada 2-18-18 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (72) Inventor Kazutomo Takama 2--18 Keihanhondori, Moriguchi-shi, Osaka Within Sanyo Electric Co., Ltd. (56) References JP-U 3-99738 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) B09B 3/00 C02F 11/02

Claims (2)

(57) [Claims] 1. A treatment tank having a kitchen refuse inlet formed at an upper part thereof,
A processing medium that is housed in the processing tank and cultures bacteria that decomposes garbage supplied to the processing tank, and a processing medium that is disposed in the processing tank and is rotated and driven by an electric motor to mix the processing medium and the garbage. A stirring blade is provided, and the stirring blade is disposed in an upper portion of the processing medium, and a processing section in which the stirring blade is located in the upper portion of the processing medium, and a purification section in which the stirring blade is not located in the lower portion of the processing medium are formed, A kitchen waste treatment apparatus, wherein a heating means for heating a processing medium is disposed in the purification unit. 2. A processing tank having a kitchen refuse inlet formed at an upper part thereof,
A processing medium that is housed in the processing tank and cultures bacteria that decomposes garbage supplied to the processing tank, and a processing medium that is disposed in the processing tank and is rotated and driven by an electric motor to mix the processing medium and the garbage. A stirring blade is provided, and the stirring blade is disposed in an upper portion of the processing medium, and a processing section in which the stirring blade is located in the upper portion of the processing medium, and a purification section in which the stirring blade is not located in the lower portion of the processing medium are formed, A kitchen waste treatment apparatus, wherein a heating means for heating a processing medium is arranged above the purification unit.