JP2002307043A - Apparatus for treating garbage - Google Patents

Abstract

PROBLEM TO BE SOLVED: To widen the range of selection of deodorization methods for exhaust gas and heighten the effect of a deodorization method by reducing the temperature of an exhaust gas exhausted from an apparatus for treating garbage. SOLUTION: The exhaust gas exhausted from a treating vessel 2 is introduced to the inside of an exhaust pipe 8 and a city water W supplied through a water supply pipe 12 is sprinkled in a mist form in the inside of the exhaust pipe 8 using a number of nozzles 13, and thereby when the sprinkled city water W drops in the inside of the exhaust pipe 8, it is brought into contact with the exhaust gas G rising in the inside of the exhaust pipe 8 and cools the exhaust gas G. Since this can reduce the temperature of the exhaust gas G exhausted from the exhaust pipe 8, the deodorizing efficiency can be enhanced by improving the functions of nitrate bacteria and nitrite bacteria in a microbial deodorization method and by preventing the dew condensation on the surface of an adsorbent in a physical deodorization method.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention fermentes and decomposes garbage and food waste (hereinafter referred to as garbage) from a food store or a food processing plant generated in a cafeteria, a food service center, or the like by a microorganism. More specifically, the present invention relates to a technique for lowering the temperature of high-temperature exhaust gas discharged from this garbage processing apparatus to enhance the deodorizing effect of the deodorizing apparatus.

[0002]

2. Description of the Related Art Conventionally, a garbage disposal apparatus that decomposes garbage such as kitchen garbage and food waste by using microorganisms has been used. It contains odor components such as ammonia and lower fatty acids generated and a large amount of water. Therefore, it is necessary to introduce the exhaust gas from the processing device into the deodorizing device, remove the odor component, and then release the odor component into the atmosphere.

As a deodorizing method for removing odor components contained in exhaust gas from a garbage disposal apparatus, there are biological deodorizing represented by microbial deodorizing, physical deodorizing by adsorbing on activated carbon or zeolite, and chemical deodorizing by washing with a chemical solution. There is, and sensory deodorization. Each of these deodorization methods has advantages and disadvantages, and which deodorization method is most appropriate depends on the type and amount of garbage to be treated, the environment in which the treatment equipment is installed, the cost that can be applied to the deodorization equipment, the usage situation, etc. Each is different.

[0004]

By the way, in the above-mentioned garbage processing apparatus, when the garbage introduced into the processing tank in which the microorganism culture substrate and the microorganisms are present is decomposed aerobically. Since a large amount of decomposition heat is generated, the temperature of the exhaust gas may be as high as 70 ° C. or more when exhausting gas or the like generated in the processing tank from the processing tank.

Thus, if the high-temperature exhaust gas from the garbage disposal apparatus is directly introduced into the deodorizing apparatus, for example, in the microbial deodorizing method, nitric bacteria and nitrites involved in the decomposition of odor components do not function well, or physical deodorization occurs. In the method, dew condensation occurs due to a decrease in exhaust temperature on the surface of the adsorbent, and the deodorizing efficiency is reduced. Therefore, not only is it difficult to freely select a deodorizing device suitable for the usage status of the garbage disposal device, but also problems such as insufficient effects of the deodorizing device are caused.

Accordingly, an object of the present invention is to solve the above-mentioned problems of the prior art, reduce the temperature of exhaust gas discharged from a garbage disposal apparatus, expand the range of choice of deodorizing methods, and deodorize. It is an object of the present invention to provide a garbage disposal apparatus capable of sufficiently obtaining the effect of the apparatus.

[0007]

According to a first aspect of the present invention, there is provided a garbage processing apparatus for processing a garbage, wherein the garbage is disposed in a processing tank and an exhaust path through which exhaust gas discharged from the processing tank passes. And a sprinkling mechanism that sprinkles water for cooling the exhaust gas with the filler, the filler being filled into the space and passing through the gap between them.

That is, in the garbage disposal apparatus according to the first aspect, since high-temperature exhaust gas such as gas generated in the processing tank is cooled by spraying water for cooling and then discharged, the exhaust gas is discharged. Not only can the range of selection of the method of the deodorizing device for deodorizing treatment be expanded, but also the deodorizing ability of the deodorizing device can be maximized. At this time, the exhaust gas passes through a gap, such as a filler, preferably fine-grained zeolite, which is sprinkled and whose surface is wet with water. Thereby, the contact area between the exhaust gas and the water can be made sufficiently large, so that the exhaust gas can be efficiently cooled and the amount of water sprinkled can be reduced. In addition, gases such as dust and ammonia contained in exhaust gas can be captured by the wet surface of a large number of fillers.

The means according to a second aspect is the garbage disposal apparatus according to the first aspect, wherein an exhaust gas temperature detecting means for detecting a temperature of the exhaust gas and a first control means for controlling an operation of the water spray mechanism. And further comprising: The first control means controls watering by the watering mechanism in accordance with the temperature of the exhaust gas detected by the exhaust gas temperature detecting means.

[0010] That is, according to the garbage disposal apparatus of the second aspect, since the watering by the watering mechanism can be controlled in accordance with the temperature of the exhaust gas discharged from the processing tank, the watering mechanism is used when the temperature of the exhaust gas is high. The operating cost of the garbage disposal can be reduced by increasing the cooling effect by increasing the amount of water sprinkled from the garbage disposal system, or by reducing the amount of water sprinkled from the sprinkling mechanism when the temperature of the exhaust gas is low. it can. Also,
It may be configured such that water is sprayed on the exhaust gas only when the temperature of the exhaust gas exceeds a predetermined value.

According to a third aspect of the present invention, there is provided the garbage disposal apparatus according to the first aspect, further comprising an ammonia concentration detecting means for detecting a concentration of ammonia contained in the exhaust gas. The first control means controls watering by the watering mechanism in accordance with the concentration of ammonia contained in the exhaust gas detected by the ammonia concentration detecting means.

That is, when the concentration of ammonia contained in the exhaust gas discharged from the treatment tank is high, the ammonia odor of the exhaust gas discharged from the garbage disposal device becomes strong. At this time,
According to the garbage disposal device of the third aspect, when the concentration of ammonia contained in the exhaust gas is high, the amount of water sprinkled from the water spray mechanism can be increased, and the ammonia contained in the exhaust gas can be dissolved in water and absorbed. . On the other hand, when the concentration of ammonia contained in the exhaust gas is low, the amount of water sprinkled from the sprinkling mechanism can be reduced, and the operating cost can be reduced. When the concentration of ammonia contained in the exhaust gas is equal to or lower than a predetermined value, watering by the watering mechanism can be stopped.

According to a fourth aspect of the present invention, in the garbage disposal apparatus of the first aspect, the apparatus further comprises a pressure detecting means for detecting a pressure in the exhaust path downstream of the filler. The first control means controls the amount of the water sprinkled from the water sprinkling mechanism in accordance with the pressure in the exhaust path detected by the pressure detection means.

That is, if the exhaust gas discharged from the processing tank contains a large amount of fine dust, the filler filled in the exhaust path is clogged, and the exhaust gas does not flow in the exhaust path. At this time, in the garbage disposal apparatus according to the fourth aspect, clogging of the filler can be detected by detecting the pressure of the exhaust gas in the exhaust path. When the filler is clogged, the clogging of the filler can be eliminated by increasing the amount of water sprinkled from the water sprinkling mechanism to wash out dust adhering to the filler.

[0015] The means described in claim 5 is the first to fourth aspects.
In the garbage disposal apparatus according to any of the above, the water spray mechanism is a water storage tank that receives the water sprinkled on the exhaust gas, and a water storage recirculation unit that returns the water in the water storage tank to the water spray mechanism. .

That is, according to the garbage disposal apparatus of the fifth aspect, the water spray mechanism receives the water sprinkled with respect to the exhaust gas in the water storage tank, and the water in the water storage tank using the water recirculation means. Therefore, the amount of fresh water such as tap water used for cooling the exhaust gas can be reduced, and the operating cost can be reduced.

According to a sixth aspect of the present invention, in the garbage disposal apparatus according to the fifth aspect, a drainage control valve that controls drainage of water in the water storage tank, and controls water supply to the water storage tank. The apparatus further includes a water supply control valve, and second control means for controlling operations of the drainage control valve and the water supply control valve.
Then, the second control means operates the drainage control valve and the water supply control valve based on a predetermined schedule to replace at least a part of the water in the water storage tank.

That is, in the garbage disposal apparatus according to the fifth aspect, the water sprayed on the exhaust gas is reused.
As the water in the water storage tank is repeatedly used to cool the exhaust gas, the water used to cool the exhaust gas gradually becomes dirty. At this time, according to the garbage disposal apparatus of the sixth aspect, the second control means operates the drainage control valve and the water supply control valve based on a predetermined schedule, and at least one of the water in the water storage tank is operated. Since the part is replaced, contamination of water used for cooling the exhaust gas can be prevented. In addition, the water supplied to the water storage tank via the water supply control valve may be tap water sprinkled with respect to exhaust gas.

According to a seventh aspect of the present invention, in the garbage disposal apparatus according to the fifth aspect, a drainage control valve that controls drainage of water in the water storage tank, and controls water supply to the water storage tank. The water supply control valve further includes third control means for controlling operations of the drainage control valve and the water supply control valve, and pH value detection means for detecting a pH value of water in the water storage tank. The second control unit is configured to, when the pH value detected by the pH value detection unit exceeds a predetermined value, replace the water in the water storage tank with at least a part of the drainage control valve and the water supply. The control valve is operated.

That is, in the garbage disposal apparatus according to the fifth aspect, the water sprinkled with respect to the exhaust gas is reused. Therefore, while the water in the water storage tank is repeatedly used to cool the exhaust gas, the exhaust gas is discharged. The content of ammonia contained in the water in the water storage tank used for cooling the water gradually increases, and the exhaust gas after cooling has an ammonia odor. At this time,
According to the garbage disposal device of claim 7, when the pH value detecting means detects that the pH value of the water in the water storage tank has exceeded the predetermined value, the third control means sets the drainage control valve and the water supply control. By operating the valve to replace at least a part of the water in the water storage tank, the ammonia content of the water used for cooling the exhaust gas can be reduced, and the cooled exhaust gas is reliably prevented from containing ammonia odor. can do.

According to an eighth aspect of the present invention, in the garbage disposal apparatus according to the fifth aspect, a drainage control valve for controlling drainage of water in the water storage tank and controlling water supply to the water storage tank. The water supply control valve further includes second control means for controlling the operation of the drainage control valve and the water supply control valve, and water storage temperature detection means for detecting the temperature of water in the water storage tank. The second control means is configured to replace at least a part of the water in the water storage tank when the temperature of the water in the water storage tank detected by the water storage temperature detection means exceeds a predetermined value. The drainage control valve and the water supply control valve are operated.

That is, in the garbage disposal apparatus according to the fifth aspect, the water sprayed on the exhaust gas is reused.
As the water in the water storage tank is repeatedly used to cool the exhaust gas, the temperature of the water in the water storage tank gradually increases, and the cooling efficiency of the exhaust gas gradually decreases. At this time, according to the garbage disposal apparatus of claim 8, when the water storage temperature detection means detects that the temperature of the water in the water storage tank has exceeded a predetermined value, the second
Control means operates the drainage control valve and the water supply control valve to replace at least a part of the water in the water storage tank, so that the temperature of water used for cooling the exhaust gas can be lowered and the cooling efficiency of the exhaust gas can be increased. .

Further, as a means for cooling the exhaust gas, a bubble discharging mechanism for discharging the exhaust gas as bubbles into the water in the water storage tank may be used. That is, since the exhaust gas is cooled by contacting the exhaust gas with the water by discharging the exhaust gas into the water as bubbles, there is no need to move water used for cooling the exhaust gas, and the operation is performed by reducing the energy required for cooling the exhaust gas. Cost can be reduced. Note that by making the bubbles released into the water as small as possible, the contact area between the exhaust gas and the water can be increased, and the cooling efficiency of the exhaust gas can be increased.

Further, as a means for cooling the exhaust gas, a heat exchanger for exchanging heat between the refrigerant and the exhaust gas can be used. At this time, as the refrigerant used for the heat exchanger, for example, low-temperature water such as tap water, outside air, or a refrigerant circulating with a refrigeration cycle can be used.

Further, as a means for cooling the exhaust gas, an external air supply mechanism for supplying the external air into an exhaust path for discharging the exhaust gas and mixing it with the exhaust gas can be used. That is, since the exhaust gas is cooled by directly mixing the exhaust gas discharged from the processing tank with the outside air having a lower temperature than the exhaust gas, the structure of the exhaust gas cooling means can be made extremely simple. At this time, when the temperature of the outside air is high, a large amount of outside air is supplied into the exhaust path, and when the temperature of the outside air is low, a small amount of outside air is supplied into the exhaust path, so that the cooling level of the exhaust can be freely adjusted. Can be controlled.

[0026]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of a garbage disposal apparatus according to the present invention will be described with reference to FIGS. In the following description, the same portions are denoted by the same reference numerals.

First Embodiment First, a garbage processing apparatus according to a first embodiment will be described with reference to FIG.

In the garbage processing apparatus 10 according to the first embodiment shown in FIG. 1, the garbage 3 introduced into the processing tank 2 from the charging port 1 is driven by a motor 4 and rotates around a horizontal axis. It is dispersed and subdivided by the device 5 and is decomposed by the base material in the treatment tank 2 and the microorganisms (hereinafter, referred to as a medium) 6 living therein. At this time, an air supply fan (not shown) supplies fresh air A into the processing tank 2 via the air supply pipe 7 in order to promote the decomposition reaction by the microorganisms 6.

When the garbage 3 is decomposed aerobically by the microorganisms 6, carbon dioxide,
Odorous substances such as moisture and ammonia are generated. Then, the air in the processing tank 2 is sucked by the exhaust fan 9 provided at the upper end of the exhaust pipe 8, and the sucked exhaust gas G is supplied to a deodorizing device (not shown) to perform the deodorizing process.

At this time, the exhaust gas G discharged from the processing tank 2
Since the temperature of the exhaust gas may be as high as 70 ° C. or more, exhaust cooling means 11 for cooling the exhaust gas G is provided inside the exhaust pipe 8.

The exhaust cooling means 11 supplies tap water W supplied by a water supply pipe 12 to a plurality of nozzles (water spray mechanism) 1.
3 is used to spray water into the exhaust pipe 8 in a mist state. As shown by the downward dotted arrow in FIG.
The tap water W sprayed in the form of a mist contacts the exhaust gas G rising inside the exhaust pipe 8 when it falls inside the exhaust pipe 8, and lowers the temperature of the exhaust G. The water in the water storage tank 8a used for cooling the exhaust gas G is discharged to the outside of the garbage disposal device 10 through a drain pipe 14 provided at a lower end of the exhaust pipe 8,
It is supplied to a deodorizing device and processed.

Using this exhaust cooling means 11, the exhaust gas G
An example of the effect of cooling the exhaust gas will be described with reference to FIG. 2. When the exhaust gas G is discharged without operating the exhaust cooling unit 11 when the temperature in the processing tank 2 is 65 ° C.
The temperature of the exhaust G was 52 ° C. On the other hand, water temperature 2
When the exhaust cooling means 11 is operated by supplying the tap water W of about 8 ° C., the temperature of the exhaust gas G decreases as the amount of the tap water W to be sprinkled increases, and the tap water of 1.74 liters per minute By spraying the water W, the temperature of the exhaust gas G could be reduced to 33 ° C. If the tap water W supplied to the exhaust cooling means 11 is cooled to further lower the water temperature, the cooling effect of the exhaust gas G can be further enhanced.

A water supply control valve is provided in the middle of the water supply pipe 12, a temperature sensor for detecting the temperature of the exhaust gas G is disposed inside the processing tank 2 or the exhaust pipe 8, and the operation of the water supply control valve is controlled. It controls using means (1st control means). Then, by controlling the operation of the water supply control valve in accordance with the detected temperature of the exhaust gas G, for example, when the temperature of the exhaust gas G exceeds a predetermined value, water spraying by the nozzle 13 is started, or in accordance with the temperature of the exhaust gas G. Thus, the amount of water sprinkled from the nozzle 13 can be controlled.

Second Embodiment Next, a garbage processing apparatus according to a second embodiment will be described with reference to FIG.

The garbage processing apparatus 20 of the second embodiment shown in FIG. 2 is different from the garbage processing apparatus 10 of the first embodiment described above.
Is a further improvement of the exhaust cooling means 11 in the above, and the other parts are the same.

That is, the exhaust cooling means 21 of the garbage disposal apparatus 20 according to the second embodiment is provided, for example, in a portion where the tap water W is sprayed from the nozzle 13 inside the exhaust pipe (exhaust passage) 8. Alternatively, it is filled with a large number of zeolite-based fillers 22. Thereby, the surface of these fillers 22 is always wet by the tap water W sprinkled.

The exhaust pipe 9 is sucked by the exhaust fan 9
Exhaust G that rises inside the space comes in contact with tap water W adhering to the surface of the filler 22 when passing through the gap between the fillers 22. At this time, since the total surface area of the large number of fillers 22 is much larger than the total surface area of the particles of the tap water W sprayed from the nozzle 13 in a mist, the contact area between the tap water W and the exhaust gas G is reduced. It can be large enough.

Therefore, in the exhaust cooling means 21 of the second embodiment, the exhaust gas G is reduced by the amount of tap water W smaller than the amount of tap water W sprinkled from the nozzle 13 in the exhaust cooling means 11 of the first embodiment. Can be cooled to the same temperature level. Further, the tap water W sprinkled from the nozzle 13 in the exhaust cooling means 11 of the first embodiment.
When the same amount of tap water W is sprayed from the nozzle 13 as the amount of water, the exhaust gas G rising inside the exhaust pipe 8 can be more efficiently cooled.

On the other hand, fine dust such as a medium contained in the exhaust gas G is discharged from the tap water W adhering to the surface of the filler material 22 when the exhaust gas G passes through the gap between the filler materials 22. Is contacted and captured. That is, the exhaust cooling means 21 of the garbage disposal device 20 of the second embodiment has a function of removing dust contained in the exhaust G in addition to a function of cooling the exhaust G.

At this time, if a large amount of dust adheres to the surface of the filler 22, the gap between the fillers 22 is clogged. Then, the flow rate of the exhaust gas G exhausted from the exhaust pipe 8 by the exhaust fan 9 decreases, and the flow rate of the fresh air A supplied into the processing tank 2 decreases, so that the garbage 3 is fermented in the processing tank 2. Degradation ability.

Therefore, a water supply control valve is provided in the middle of the water supply pipe 12, and the operation of the water supply control valve is controlled using control means (first control means), whereby the nozzle 1 is controlled.
The amount of tap water W sprinkled from 3 is increased, and the dust adhering to the filler 12 is washed away. The work of washing out the dust adhering to the filler 12 can be performed periodically at a pace such as once a week. Further, water spraying by the nozzle 13 can be controlled in accordance with the output of a sensor for measuring the flow rate of the exhaust gas G or the fresh air A or the output of a pressure sensor for measuring the pressure inside the exhaust pipe 8.

On the other hand, when the decomposition of the garbage 3 in the processing tank 2 progresses favorably and the temperature in the processing tank 2 becomes considerably high, the exhaust gas G contains a large amount of ammonia. At this time, ammonia has the property of being very easily dissolved in water,
The ammonia contained in the exhaust gas G can be removed by bringing the exhaust gas G into contact with the tap water W. Therefore, a sensor for detecting the concentration of ammonia contained in the exhaust gas G is provided inside the processing tank 2 or the exhaust pipe 8, and the operation of a water supply control valve provided in the middle of the water supply pipe 12 is controlled using control means. Then, watering by the nozzle 13 is controlled according to the detected concentration of ammonia. Then, by spraying a larger amount of tap water W than is necessary for lowering the temperature of the exhaust G, the concentration of ammonia contained in the exhaust G can be significantly reduced.

That is, according to the exhaust cooling means 21 of the garbage processing apparatus 20 of the second embodiment, the concentration of ammonia contained in the exhaust gas G can be sufficiently reduced. This eliminates the need to remove ammonia with a deodorizing device for deodorizing the exhaust gas G, which is extremely advantageous in terms of cost and installation space.

Third Embodiment Next, a garbage processing apparatus according to a third embodiment will be described with reference to FIG.

The garbage processing apparatus 30 of the third embodiment shown in FIG. 4 is different from the garbage processing apparatus 20 of the second embodiment described above.
Are further improved from the exhaust cooling means 21, and the other parts are the same.

A predetermined amount of garbage 3 is not always supplied to the processing tank 2 of the garbage processing apparatus. Depending on the user, there is a case where only the garbage 3 which is less than half of the rated amount is always thrown in, or a day when the garbage 3 is not thrown in continues for several days. In this case, the dried medium enters the exhaust cooling unit 31 together with the exhaust gas G, and clogs the filler 22.

Therefore, in the garbage disposal device 30 of the third embodiment, the filter 3 is provided upstream of the exhaust cooling means 31.
By providing 2, fine dust such as a medium contained in the exhaust gas G is captured. The filter 3
2 may be provided on the upstream side of the exhaust cooling means 31 and may be provided in the processing tank 2 or may be provided at the opening of the inlet of the exhaust pipe 8.

Fourth Embodiment Next, a garbage processing apparatus according to a fourth embodiment will be described with reference to FIG.

The garbage processing apparatus 40 of the fourth embodiment shown in FIG. 5 is different from the garbage processing apparatus 30 of the third embodiment described above.
Are further improved from the exhaust cooling means 31, and the other parts are the same.

The garbage processing apparatus 3 according to the third embodiment described above.
In the exhaust gas cooling means 31 at 0, the tap water W used for cooling the exhaust gas G is discharged to the outside from the drain pipe 14 as the waste water D. On the other hand, in the exhaust cooling means 31 in the garbage disposal device 30 of the fourth embodiment, the wastewater D is reused for cooling the exhaust G.

For this reason, at the lower end of the exhaust pipe 8, a water storage tank 8a is provided.
Is disposed to temporarily store the water sprinkled to cool the exhaust gas G. The water stored in the water storage tank 8a can be returned to the water supply pipe 12 by the water pump (water storage reflux means) 42 and the water pipe 43. At this time, a first solenoid valve (drainage control valve) 44 is provided at a location where the drainage pipe 14 and the pumping pipe 43 are branched, and a second solenoid valve is provided at a location where the water supply pipe 12 and the pumping pipe 43 join. (Water supply control valve) 45 is disposed. Further, control means (second control means) 46 is provided for controlling the operation of the first and second solenoid valves 44 and 45.

When the water stored in the water storage tank 8a is used for cooling the exhaust gas G, the switching direction of the first solenoid valve 44 and the second solenoid valve 45 is changed by the control means 46, and the pumping pump is used. 42 is operated to return water to the water supply pipe 12. When the tap water W is used to cool the exhaust gas G, the control unit 46 changes the switching direction of the second solenoid valve 45 to supply the tap water W to the water supply pipe 12.

Thus, the water stored in the water storage tank 8a can be supplied to the nozzle 13 and reused to cool the exhaust gas G. Therefore, the amount of tap water W used can be reduced and the exhaust cooling means 3 can be used.
1 can reduce the operating cost. Whether to use the tap water W or the stored water to cool the exhaust gas G
The control means 46 can be programmed in advance so that it can be changed in accordance with the usage status of the garbage disposal device 40 or the difference in the temperature of the exhaust gas G.

When the water in the water storage tank 8a is discharged to the outside, the switching direction of the first solenoid valve 44 is changed by the control means 46, and the water is drained through the drain pipe 14. Tap water W is supplied from the water supply pipe 12 by the amount of water discharged from the water storage tank 8a to the outside.
Can be supplied and sprinkled. Since the filter 32 is provided upstream of the exhaust pipe 8, the amount of fine dust contained in the water in the water storage tank 8a is very small, and the water pump 42 and the first and second solenoid valves are not provided. No damage to 44, 45.

Fifth Embodiment Next, a garbage processing apparatus according to a fifth embodiment will be described with reference to FIG.

The garbage processing apparatus 50 of the fifth embodiment shown in FIG. 6 is different from the garbage processing apparatus 40 of the fourth embodiment described above.
Is a further improvement of the exhaust cooling means 41, and the other parts are the same.

When the water in the water storage tank 8a is circulated and reused to cool the exhaust gas G, the ammonia contained in the exhaust gas G gradually dissolves in the circulated water. When the concentration of ammonia contained in the circulated water increases, the exhaust gas G exhausted to the outside of the exhaust cooling unit 41 is increased.
Since the concentration of ammonia contained therein becomes high, a bad smell drifts around the garbage disposal device 40, and in severe cases, the ammonia odor cannot be deodorized by a deodorization device connected downstream of the garbage disposal device 40.

Therefore, in the exhaust cooling means 51 of the garbage processing apparatus 50 of the fifth embodiment, the water storage tank 8a
Of water in the water storage tank 8a by the pH sensor 52 provided at
The control unit 46 periodically detects the H value and determines whether to reuse the water in the water storage tank 8a or use the tap water W according to the pH value detected by the pH sensor 52.

When the pH value is, for example, 7 or less, the water tank 8
Since the concentration of ammonia contained in the water in the tank a is low, the control means 46 uses the first and second solenoid valves 44 and 45 to recirculate the water in the water tank 8a to the water supply pipe 12 and cool the exhaust gas G. Reuse to do. On the other hand, when the pH value is 7 or more, since the concentration of ammonia contained in the water in the water storage tank 8a is high, the control means 46 drains the water in the water storage tank 8a using the first solenoid valve 44. The water is discharged through the pipe 14 and the tap water W is supplied to the water supply pipe 12 using the second solenoid valve 45.
And used for cooling the exhaust gas G. If the amount of water in the water storage tank 8a in the water storage tank 8a decreases, the water supply pipe 12
The tap water W can be replenished through the nozzle 13 and the tap water W, or the tap water W can be directly supplied to the water storage tank 8a by a pipe (not shown).

That is, according to the exhaust gas cooling means 51 in the food waste treatment apparatus 50 of the fifth embodiment, the ammonia contained in the exhaust gas G discharged from the food waste treatment apparatus 50 causes a bad smell to drift around the waste A deodorizing device connected downstream of the processing device 50 does not prevent the ammonia odor from being deodorized.

Sixth Embodiment Next, a garbage processing apparatus according to a sixth embodiment will be described with reference to FIG.

The garbage processing apparatus 60 according to the sixth embodiment shown in FIG. 7 is different from the garbage processing apparatus 50 according to the fifth embodiment described above.
Is a further improvement of the exhaust cooling means 51, and the other parts are the same.

When the decomposition and fermentation of the garbage 3 in the processing tank 2 becomes active, a large amount of decomposition heat is generated, so that the temperature of the exhaust gas G discharged from the processing tank 2 also increases. Therefore, when the exhaust cooling device 51 circulates and reuses the water in the water storage tank 8a, the temperature of the water in the water storage tank 8a increases, and the function of cooling the exhaust gas G decreases.

Therefore, in the exhaust cooling means 61 of the garbage processing apparatus 60 of the sixth embodiment, the water storage tank 8a
The temperature of the water in the water storage tank 8a is periodically detected by the water temperature sensor 62 provided in the storage tank 8a, and the water in the water storage tank 8a is reused according to the temperature of the water in the water storage tank 8a detected by the water temperature sensor 62. The control means 46 determines whether to use the tap water W.

When the temperature of the water in the water storage tank 8a is, for example, 35 ° C. or less, the exhaust gas G can be sufficiently cooled by the water in the water storage tank 8a, and the control means 46 controls the first and second solenoid valves 44, The water in the water storage tank 8a is returned to the water supply pipe 12 by using 45, and the water in the water storage tank 8a is reused to cool the exhaust gas G. On the other hand, when the temperature of the water in the water storage tank 8a is 3
When the temperature is 5 ° C. or higher, the cooling effect of the exhaust gas G by the water in the water storage tank 8 a is low, and the control means 46 discharges the water in the water storage tank 8 a through the drain pipe 14 using the first solenoid valve 44. At the same time, the tap water W is supplied to the water supply pipe 12 using the second solenoid valve 45 and used for cooling the exhaust gas G.

That is, according to the exhaust cooling means 61 of the garbage processing apparatus 60 of the sixth embodiment, the water storage tank 8a
When the temperature of the internal water is low, the water in the water storage tank 8a is reused to cool the exhaust gas G, so that the usage fee for the tap water W can be reduced and the operating cost can be reduced. It should be noted that the water temperature sensor 62 is provided with a water pump 43 instead of the water storage tank 8a.
Can also be provided.

Seventh Embodiment Next, a garbage processing apparatus according to a seventh embodiment will be described with reference to FIG.

The garbage processing apparatus 70 according to the seventh embodiment shown in FIG. 8 is different from the garbage processing apparatus 60 according to the sixth embodiment described above.
Are further improved from the exhaust cooling means 61, and the other parts are the same.

In each of the above-described embodiments, the tap water W or the water in the water storage tank 8a is sprayed when the exhaust gas G is discharged. On the other hand, only when the temperature of the exhaust gas G discharged from the processing tank 2 is high, the tap water W or the water tank 8
If the water in a is sprinkled, the operating cost of the apparatus can be further reduced.

Therefore, in the exhaust cooling means 71 of the garbage processing apparatus 70 according to the seventh embodiment, the temperature of the exhaust G discharged from the processing tank 2 is periodically measured by a temperature sensor 72 provided at an upstream portion of the exhaust pipe 8. As well as
In accordance with the temperature value of the exhaust gas G transmitted from the temperature sensor 72, the control means 46 determines whether or not to spray the tap water W or the water in the water storage tank 8a.

When the temperature of the exhaust gas G is, for example, 35 ° C. or less, there is no need to cool the exhaust gas G. Therefore, the control means 46 closes the second solenoid valve 45 to open the tap water W or the water tank for the water supply pipe 12. The supply of water in 8a is stopped. On the other hand, when the temperature of the exhaust gas G is 35 ° C. or more,
Since the exhaust gas G needs to be cooled, the control means 46
By opening the electromagnetic valve 45, the tap water W or the water in the water storage tank 8a is supplied to the water supply pipe 12 and water is sprayed from the nozzle 13 to cool the exhaust gas G.

That is, according to the exhaust cooling means 71 in the garbage processing apparatus 70 of the seventh embodiment, only when the temperature of the exhaust gas G discharged from the processing tank 2 is high, the tap water W or the water in the water storage tank 8a is discharged. Since water is sprinkled, the operation cost of the apparatus can be further reduced. The temperature sensor 72 is not limited to the inlet portion of the exhaust pipe 8 and may be provided in the processing tank 2. Further, since the temperature of the exhaust gas G has a correlation with the medium temperature in the processing tank 2, a temperature sensor such as a thermocouple is attached to the outer wall of the processing tank 2, for example, if the temperature of the processing tank 2 is 40 ° C. or more. For example, the exhaust cooling unit 71 can be controlled to spray the tap water W or the water in the water storage tank 8a.

Eighth Embodiment Next, a garbage processing apparatus according to an eighth embodiment will be described with reference to FIG.

The garbage processing apparatus 80 of the eighth embodiment shown in FIG. 9 is different from the garbage processing apparatus 50 of the fifth embodiment described above.
Is a further improvement of the exhaust cooling means 51, and the other parts are the same.

The garbage processing apparatus 5 according to the fifth embodiment described above.
At 0, the exhaust gas G discharged from the processing tank 2 was allowed to flow into the exhaust pipe 8 as it was. In contrast, this book
In the exhaust cooling means 81 of the garbage processing apparatus 80 of the embodiment, after the fine dust contained in the exhaust G is removed by the filter 82 provided in the processing tank 2, the exhaust blower 83
The exhaust gas G is pressure-fed, and is supplied to the bubble releasing means 84 disposed below the exhaust pipe 8.

On the other hand, a first solenoid valve 85 is provided in the drain pipe 14 communicating with the lower part in the exhaust pipe 8, and its opening and closing can be controlled by the control means 46. Also,
A second solenoid valve 86 is provided in the middle of the water supply pipe 12 communicating with the upper part of the exhaust pipe 8, and the opening and closing operation thereof can be controlled by the control means 46. As a result, the first electromagnetic valve 85 is closed to stop the drainage of the water in the water storage tank 8a, and the second electromagnetic valve 86 is opened to open the tap water W in the exhaust pipe 8.
Is supplied, a water storage tank 87 storing a large amount of water can be formed inside the exhaust pipe 8.

As a result, the exhaust gas G in the processing tank 2 becomes fine bubbles through the bubble discharging means 84 and is ejected into the exhaust processing water in the water storage tank 87. Ammonia and the like are also removed. Then, the exhaust gas G that has moved from the surface of the exhausted treated water in the water storage tank 87 to the internal space of the exhaust pipe 8 is further processed by the tap water W sprayed in a mist form from the nozzle 13, and then the exhaust pipe 8
Exit.

On the other hand, the water storage tank 87 is provided with a pH sensor 52, and periodically measures the pH value of the exhaust water in the water storage tank 87. Then, when the measured pH value exceeds a predetermined value, the control means 46 opens the first solenoid valve 85 to drain the exhausted water, and opens the second solenoid valve 86 to supply water to the water storage tank 87. Supply water W.

That is, in the exhaust cooling means 81 of the garbage processing apparatus 80 according to the eighth embodiment, the exhaust gas G discharged from the processing tank 2 is blown out as bubbles into the exhaust water, and the exhaust gas G is discharged from the exhaust water. Since the structure is such that tap water W is further sprayed on the discharged exhaust gas in a mist state, the temperature of the exhaust gas G can be more surely lowered, and the exhaust gas G can be reduced.
, Etc., contained in the water can be more reliably removed. In addition, watering of the tap water W via the nozzle 13 can be stopped, or water from the nozzle 13 can be sprayed by circulating the exhausted water in the water storage tank 87.

Ninth Embodiment Next, a garbage processing apparatus according to a ninth embodiment will be described with reference to FIG.

Each of the garbage disposal apparatuses of the above-described embodiments has a structure in which the exhaust gas G discharged from the processing tank 2 is cooled by directly contacting the tap water W or the like. On the other hand, in the garbage processing apparatus of the ninth embodiment, the exhaust gas G is cooled without contacting the tap water W or the like.

That is, in the exhaust cooling means 91 of the garbage processing apparatus 90 of the ninth embodiment, the fine dust contained in the exhaust G discharged from the processing tank 2 is removed by using the filter 32, and then the exhaust cooling is performed. G is supplied into the exhaust pipe 8. On the other hand, the refrigerant C is supplied to the heat exchanger 92 provided in the exhaust pipe 8 from a refrigeration cycle (not shown) via a supply pipe 93. The degree of opening of the solenoid valve 94 provided in the middle of the supply pipe 93 depends on the temperature of the exhaust gas G supplied into the exhaust pipe 8 detected by the temperature sensor 95.
Controls.

As a result, the exhaust gas G supplied into the exhaust pipe 8 is cooled when it rises in the exhaust pipe 8 and passes through the heat exchanger 92, and is thereafter discharged to the outside of the exhaust pipe 8. Condensed water generated when the exhaust gas G passes through the heat exchanger 92 is discharged from the lower part of the exhaust pipe 8 to the floor via the drain pipe 14.

Therefore, in the exhaust gas cooling means 91 of the garbage disposal apparatus 90 of the ninth embodiment, the exhaust gas G discharged from the processing tank 2 is cooled without directly contacting the liquid such as tap water. can do. In particular, if outside air having a low temperature is used as the refrigerant C to be supplied to the heat exchanger 92, the exhaust gas G can be cooled without supplying the tap water W or the like to the garbage disposal device 90.

Tenth Embodiment Next, a garbage processing apparatus according to a tenth embodiment will be described with reference to FIG.

The garbage disposal device 80 of the tenth embodiment shown in FIG. 11 is a further improvement of the exhaust cooling means 91 of the garbage disposal device 90 of the ninth embodiment described above. Are identical.

The garbage processing apparatus 100 of the tenth embodiment
The exhaust cooling means 101 removes fine dust contained in the exhaust G by the filter 32 of the processing tank 2, and then sucks the exhaust G by the exhaust fan 9 and supplies the exhaust G into the exhaust pipe 8.

On the other hand, the heat exchanger 1 provided in the exhaust pipe 8
Fresh air A is pumped inside 02 by a supply air blower 104 provided upstream of the supply pipe 103. Thereby, the fresh air A passing through the inside of the heat exchanger 102 is
After the temperature is increased by heat exchange with the high-temperature exhaust gas G in the exhaust pipe 8, the temperature is supplied to the inside of the processing tank 2 through the air supply pipe 7.

That is, according to the exhaust cooling means 101 of the garbage processing apparatus 100 of the tenth embodiment, the temperature of fresh air supplied into the processing tank 2 can be increased without using an air supply heater or the like. Therefore, there is no need to supply energy such as electric power to the air supply heater.
00 can be reduced. In addition, the fermentation decomposition action of the garbage 3 inside the treatment tank 2 is 60 to 7 times.
If the temperature is 0 ° C. or less, the higher the temperature is, the more the temperature is increased. Therefore, by supplying the heated fresh air, the processing capacity of the garbage 3 can be further increased.

Eleventh Embodiment Next, a garbage processing apparatus according to an eleventh embodiment will be described with reference to FIG.

The exhaust cooling means 111 of the garbage disposal apparatus 110 according to the eleventh embodiment shown in FIG. 12 introduces outside air having a lower temperature than the exhaust G into the exhaust pipe 8 and mixes it with the exhaust G. This is for cooling the exhaust gas G.

Therefore, a large exhaust blower 112 is provided above the exhaust pipe 8 and an outside air supply pipe 113 communicating with the upper part of the exhaust pipe 8 is provided. Further, a first damper 114 for controlling the flow rate of cooling outside air supplied into the exhaust pipe 8 via the outside air supply pipe 113 is provided in the middle of the outside air supply pipe 113. Similarly, in the middle of the air supply pipe 7 that supplies fresh outside air into the processing tank 2,
A second damper 115 for controlling the amount of outside air supplied into the processing tank 2 through the air supply pipe 7 is provided. Thereby, the flow rate of the high-temperature exhaust gas G flowing into the exhaust pipe 8 is controlled by controlling the opening degree of the second damper 115,
By controlling the opening degree of the first damper 114, it is possible to control the flow rate of the outside air for cooling supplied into the exhaust pipe 8.

Further, a first temperature sensor 116 for measuring the temperature of the exhaust gas G in the exhaust pipe 8 and a second temperature sensor for measuring the temperature of the outside air supplied into the exhaust pipe 8 via the outside air supply pipe 113 117 are connected to the control means 46, respectively.

When the exhaust blower 112 is operated, high-temperature exhaust gas G flows into the exhaust pipe 8 from the processing tank 2 because external air is supplied into the processing tank 2 through the air supply pipe 7. at the same time,
Cooling outside air flows into the exhaust pipe 8 via the outside air supply pipe 113. As a result, the high-temperature and high-humidity exhaust gas G is mixed with the relatively low-temperature outside air in the exhaust pipe 8 and cooled, and the temperature thereof is reduced. Condensation generated in the exhaust pipe 8 due to cooling of the high-temperature and high-humidity exhaust gas G is drained to the outside through the drain pipe 14.

On the other hand, the control means 46 determines whether the temperature of the high-temperature exhaust gas G flowing into the exhaust pipe 8 measured by the first temperature sensor 116 and the temperature of the exhaust gas 8 measured by the second temperature sensor 117 The opening degree of the first and second dampers 114 and 115 is controlled by comparing the temperature of the supplied outside air for cooling. For example, when the temperature of the outside air for cooling supplied to the exhaust pipe 8 is sufficiently lower than the temperature of the exhaust gas G, the opening degree of the first damper 114 is reduced and the opening degree of the second damper 115 is reduced. Increase the degree. On the other hand, the temperature of the outside air for cooling supplied to the exhaust pipe 8 is changed to the exhaust G
If the temperature is not so low as compared with the temperature of the first damper 114, the opening degree of the first damper 114 is increased and the second damper 1 is opened.
15 is made smaller.

Therefore, according to the exhaust cooling means 111 of the garbage processing apparatus 110 of the eleventh embodiment, the processing tank 2
The exhaust gas G can be cooled without directly contacting the exhaust gas G discharged from the tank with a liquid such as tap water. In addition, a cooling fan is provided instead of the first and second dampers 114 and 115, and the cooling level of the exhaust gas G can be controlled by controlling the operation of the cooling fan.

Although the respective embodiments of the garbage disposal apparatus according to the present invention have been described in detail above, it is needless to say that the present invention is not limited to the above-described embodiments, and that various modifications are possible. For example, in each of the above-described embodiments, each cooling unit is used individually, but each cooling unit may be used in combination.

[0098]

As is apparent from the above description, according to the garbage processing apparatus of the present invention, high-temperature exhaust gas such as gas generated in the processing tank is discharged after being cooled by the exhaust cooling means. Not only can the range of choice of a deodorizing device for deodorizing exhaust gas be expanded, but also the deodorizing capability of the deodorizing device can be maximized. Further, the garbage disposal apparatus of the present invention cools the exhaust gas using water such as tap water, so that the structure of the exhaust cooling means can be simplified. In addition, the garbage disposal apparatus of the present invention can spray the filler filled in the exhaust path to wet the surface of the filler and contact the exhaust with the wet filler, so that the exhaust can be efficiently cooled. Not only gas such as dust and ammonia contained in exhaust gas can be captured. Further, since the garbage disposal apparatus of the present invention controls water spraying by the water spray mechanism according to the temperature of the exhaust gas discharged from the treatment tank, it is possible to efficiently cool the exhaust gas and reduce the operating cost of the garbage processing apparatus. Further, since the garbage disposal apparatus of the present invention controls watering by the watering mechanism according to the concentration of ammonia contained in the exhaust gas, it is possible to efficiently remove the ammonia contained in the exhaust gas and reduce the operating cost of the garbage disposal apparatus. it can. In addition, since the garbage disposal apparatus of the present invention controls watering by the watering mechanism according to the pressure in the exhaust path, it is possible to eliminate clogging of the filler by washing out dust adhering to the filler.
In addition, the garbage disposal apparatus of the present invention recycles water used for cooling exhaust gas to the water spray mechanism and reuses it. The operation cost of the device can be reduced. In addition, since the garbage disposal apparatus of the present invention cools the exhaust gas by discharging the exhaust gas into the water as bubbles, there is no need to move water used for cooling the exhaust gas, thereby reducing the operating cost of the garbage disposal apparatus. be able to. In addition, since the garbage disposal apparatus of the present invention periodically exchanges a part of the water that is recirculated and used to cool the exhaust gas, it is possible to prevent contamination of the water used for the exhaust gas. In addition, the garbage disposal apparatus of the present invention exchanges water to be recirculated and used to cool the exhaust gas according to its pH value, so that the cooled exhaust gas can be prevented from containing ammonia odor. Further, since the garbage disposal apparatus of the present invention exchanges the water used for recirculation to cool the exhaust gas according to the water temperature, the temperature of the water used for cooling the exhaust gas is lowered to reduce the cooling efficiency of the exhaust gas. Can be increased. Further, the garbage disposal apparatus of the present invention cools the exhaust gas by heat exchange with the refrigerant in the heat exchanger, so that the high-temperature exhaust gas can be more effectively cooled. In addition, the garbage disposal apparatus of the present invention cools the exhaust gas by heat exchange with fresh air supplied into the processing tank, so that the temperature of the fresh air supplied into the processing tank can be increased. Not only can increase the activity of microorganisms in the garbage to improve the processing capacity of garbage, but also eliminate the need for electrical energy, etc., necessary to raise the temperature of fresh air supplied into the processing tank Can be. Further, the garbage disposal apparatus of the present invention cools the exhaust gas by directly mixing the high-temperature exhaust gas discharged from the treatment tank with the low-temperature outside air, so that the structure of the exhaust cooling means can be simplified. Further, since the garbage disposal apparatus of the present invention has dust removing means such as a filter for removing dust contained in exhaust gas, it is possible to reliably prevent the exhaust cooling means from being clogged by dust.

[Brief description of the drawings]

FIG. 1 is a diagram schematically showing a structure of a garbage processing apparatus according to a first embodiment of the present invention.

FIG. 2 is a bar graph showing the effect of the garbage processing apparatus of the first embodiment shown in FIG.

FIG. 3 is a diagram schematically showing a structure of a garbage processing apparatus according to a second embodiment of the present invention.

FIG. 4 is a diagram schematically showing a structure of a garbage processing apparatus according to a third embodiment of the present invention.

FIG. 5 is a diagram schematically showing a structure of a garbage processing apparatus according to a fourth embodiment of the present invention.

FIG. 6 is a diagram schematically showing a structure of a garbage disposal apparatus according to a fifth embodiment of the present invention.

FIG. 7 is a diagram schematically showing a structure of a garbage processing apparatus according to a sixth embodiment of the present invention.

FIG. 8 is a diagram schematically showing a structure of a garbage processing apparatus according to a seventh embodiment of the present invention.

FIG. 9 is a diagram schematically showing a structure of a garbage processing apparatus according to an eighth embodiment of the present invention.

FIG. 10 is a view schematically showing a structure of a garbage processing apparatus according to a ninth embodiment of the present invention.

FIG. 11 is a diagram schematically showing a structure of a garbage processing apparatus according to a tenth embodiment of the present invention.

FIG. 12 is a view schematically showing a structure of a garbage processing apparatus according to an eleventh embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Input port 2 Processing tank 3 Garbage 4 Motor 5 Stirrer 6 Microorganism 7 Air supply pipe 8 Exhaust pipe 8a Water storage tank 9 Exhaust fan 10 Garbage processing apparatus of the first embodiment 11 Exhaust cooling means 12 Water supply pipe 13 Nozzle 14 Drain pipe Reference Signs List 20 Garbage disposal device of second embodiment 21 Exhaust cooling unit 22 Filler 30 Garbage disposal device of third embodiment 31 Exhaust cooling unit 32 Filter 40 Garbage disposal device of fourth embodiment 41 Exhaust cooling unit 42 Pumping pump 43 pumping pipe 44 first electromagnetic valve 45 second electromagnetic valve 46 control means 50 garbage processing apparatus 51 of the fifth embodiment 51 exhaust cooling means 52 pH sensor 60 garbage processing apparatus of the sixth embodiment 61 exhaust cooling means 62 Water temperature sensor 70 Garbage disposal device of the seventh embodiment 71 Exhaust cooling means 72 Temperature sensor 80 Garbage disposal device of the eighth embodiment 81 Exhaust Cooling Means 82 Filter 83 Exhaust Blower 84 Bubble Ejecting Means 85 First Solenoid Valve 86 Second Solenoid Valve 87 Water Storage Tank 90 Garbage Disposal Device of Ninth Embodiment 91 Exhaust Cooling Means 92 Heat Exchanger 93 Supply Pipe 94 Solenoid valve 95 Temperature sensor 100 Garbage disposal apparatus of the tenth embodiment 101 Exhaust cooling means 102 Heat exchanger 103 Supply pipe 104 Air supply blower 110 Garbage disposal apparatus of the eleventh embodiment 111 Exhaust cooling means 112 Exhaust blower 113 Outside air supply Tube 114 first damper 115 second damper 116 first temperature sensor 117 second temperature sensor

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) F28C 1/02 B09B 3/00 ZABD F28F 27/00 501 B01D 53/34 131 F-term (Reference) 4C080 AA03 BB02 CC08 CC15 HH03 KK06 MM01 QQ11 4D002 AA13 AB02 AC10 BA02 BA13 BA14 CA01 CA07 DA35 EA01 GA02 GB02 4D004 AA03 AC04 CA15 CA19 CA21 CA32 CA47 CA48 CB04 CB28 CB31 CB36 CC03 DA01 DA02 DA06 DA07 DA20 4D032 AB09 AC01

Claims (8)

[Claims] 1. A processing tank for processing garbage, a filler filled in an exhaust path through which exhaust gas discharged from the processing tank passes, and the exhaust gas passing through a gap therebetween, and the exhaust gas And a sprinkling mechanism for sprinkling water for cooling the filler with the filler. 2. An exhaust gas temperature detecting means for detecting a temperature of the exhaust gas, and a first control means for controlling an operation of the water spray mechanism, wherein the first control means comprises an exhaust gas temperature detecting means. The garbage disposal apparatus according to claim 1, wherein watering by the watering mechanism is controlled according to the temperature of the exhaust gas detected by the apparatus. 3. An apparatus for detecting the concentration of ammonia contained in the exhaust gas, comprising: ammonia concentration detecting means for detecting the concentration of ammonia contained in the exhaust gas; and first control means for controlling the operation of the water spray mechanism. The garbage disposal apparatus according to claim 1, wherein watering by the watering mechanism is controlled in accordance with the concentration of ammonia contained in the exhaust gas detected by the ammonia concentration detecting means. 4. The apparatus according to claim 1, further comprising: a pressure detection unit configured to detect a pressure of exhaust gas in the exhaust path; and a first control unit configured to control an operation of the water sprinkling mechanism. 2. The garbage disposal apparatus according to claim 1, wherein water spraying by the water spray mechanism is controlled according to a pressure of exhaust gas in the exhaust path detected by a detection unit. 3. 5. The water spray mechanism further comprises: a water storage tank for receiving the water sprinkled on the exhaust gas; and a water storage recirculation means for returning the water in the water storage tank to the water spray mechanism. Claim 1
A garbage disposal apparatus according to any one of claims 1 to 4. 6. A drainage control valve for controlling drainage of water in the water storage tank, a water supply control valve for controlling water supply to the water storage tank, and controlling operations of the drainage control valve and the water supply control valve. And a second control unit, wherein the second control unit exchanges at least a part of water in the water storage tank based on a predetermined schedule. The garbage disposal device according to claim 5, wherein the control valve is operated. 7. A drainage control valve for controlling drainage of water in the water storage tank, a water supply control valve for controlling water supply to the water storage tank, and controlling operation of the drainage control valve and the water supply control valve. A second control unit; and a pH value detection unit that detects a pH value of water in the water storage tank, wherein the second control unit sets the pH value detected by the pH value detection unit to a predetermined value. The garbage disposal apparatus according to claim 5, wherein when the water flow rate exceeds the threshold, the drainage control valve and the water supply control valve are operated to replace at least a part of water in the water storage tank. 8. A drainage control valve for controlling drainage of water in the water storage tank, a water supply control valve for controlling water supply to the water storage tank, and controlling operation of the drainage control valve and the water supply control valve. A second control unit; and a water storage temperature detection unit configured to detect a temperature of water in the water storage tank. The second control unit is configured to detect a temperature of the water in the water storage tank detected by the water storage temperature detection unit. The water discharge control valve and the water supply control valve are operated to replace at least a part of the water in the water storage tank when the temperature of the water exceeds a predetermined value. Waste treatment equipment.