JP2000279930A - Garbage treating machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a crude refuse treating machine which is capable of improving the dehumidification rate of moist air in a heat exchanger. SOLUTION: This crude refuse treating machine includes the heat exchanger 25 which cools the atmosphere in a treating vessel 21 by executing a heat exchange of the atmosphere in the treating vessel and outdoor air, a fan 26 which blows the outdoor air to the heat exchanger 25 and a drain pipe 34 which discharges the drains condensed and separated from the atmosphere in the treating vessel 21 cooled by the heat exchanger 25. Further, the machine has an air permeable pad 23 through which the outdoor air blown to the heat exchanger 25 can pass and piping 32 which supplies liquid to the pad 23. The temperature of the outdoor air is lowered by the evaporation heat of the liquid by supplying the liquid via the pad 23 to the outdoor air blown to the heat exchanger 25, by which the sufficient dehumidification in the heat exchanger may be executed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a garbage processing machine for processing garbage discharged from a kitchen at home, a kitchen at a restaurant or the like. In particular, the present invention relates to a garbage disposer capable of improving the amount of dehumidification of moist air in a heat exchanger.

[0002]

2. Description of the Related Art Garbage is a general term for leftovers and the like (specifically, vegetable scraps, fish heads and bones, fruit skins, and the like) generated by cooking food at home and restaurants. at present,
Most of these garbage are incinerated in refuse incinerators,
It is being reclaimed at a landfill. However, the amount of waste generated has rapidly increased with the increase in the processing capacity of the waste incinerator, and it is necessary to add a waste incinerator. However, as is well known, it is not easy to add a waste incinerator. It is also difficult to secure landfills for processing garbage. Therefore, disposal of the rapidly increasing garbage is a major problem.

[0003] In order to solve such a problem, a garbage disposer that can be easily used in homes, restaurants and the like has been developed. FIG. 4 is a conceptual system diagram showing a conventional general garbage processing machine. As shown in FIG.
A processing tank 101 into which garbage is put is provided. The processing tank 101 has a stirrer 101a inside. At the bottom of the processing tank 101, a heating means 101b such as an electric heater, a gas burner or a hot water pipe is provided. The inlet side of the heat exchanger 102 is connected to the upper part of the processing tank 101 via an air extraction pipe 107. The heat exchanger 102 is provided with a fan 103. Fan 1
At 03, the heat exchanger 102 is air-cooled.

[0004] At the outlet side of the heat exchanger 102, a drain tube 1 is provided.
09 is connected. The drain dewed and separated from the atmosphere in the processing bath 101 cooled by the heat exchanger 102 is discharged through the drain tube 109. On the other hand, heat exchanger 1
02 is an air return pipe 10 reaching the processing tank body 101.
Connected to 8. In the middle of the air return pipe 108,
A blower 104 is incorporated. The air in the processing tank 101 is sucked into the heat exchanger 102 through the air extraction pipe 107 by the blower 104.

Further, as a conventional example of a garbage disposal machine, there can be mentioned, for example, one disclosed in JP-A-10-137729. As shown in FIG. 5, in the garbage disposer disclosed in the above publication, a deodorizing device 106 is connected to a drain pipe 109. Dehumidified water generated by condensation by the heat exchanger 102 is introduced into the deodorizing device 106. These drain tube 109 and deodorizing device 106 include:
Coolers 105a and 105b are incorporated. The dehumidified water discharged from the heat exchanger 102 is cooled by the coolers 105a and 105b.

Further, the air return pipe 108 has a blower 1
There is provided a communication pipe 110 that branches off from between the heat exchanger 04 and the heat exchanger 102 and is connected to the deodorizing device 106. Part of the air sucked by the blower 104 is introduced into the deodorizing device 106 through the communication pipe 110, and the remaining air is supplied to the air return pipe 10
8 and returned to the processing tank 101.

The operation of the garbage disposer shown in FIG. 5 will be described. Immediately after being discharged, garbage usually produces humid air with foul odors. When this garbage is put into the processing tank 101, the highly humid air in the processing tank 101 is taken out to the heat exchanger 102 via the air extraction pipe 107. In this heat exchanger 102, the high-humidity air condenses into water,
The water is introduced into the deodorizing device 106 through the drain pipe 109.
On the other hand, the dehumidified water at the time of condensation is cooled by the drain pipe 109 and the coolers 105 a and 105 b of the deodorizing device 106.
By this cooling, adsorption of the malodorous substance of the dehumidifying water is promoted.

In this state, all or a part of the air (with odor) sucked by the operation of the blower 104 is introduced into the deodorizing device 106 through the communication pipe 110. The air comes into contact with the dehumidified water cooled in the deodorizing device 106, whereby the odor is removed and the air is exhausted. At this time, the dehumidified water in which the molecules causing the offensive odor are dissolved is discharged from a drain pipe attached to the deodorizing device 106.

[0009]

However, the garbage disposer of each of the above cases has a small difference between the temperature of the humid air sucked from the processing tank 101 (that is, the temperature of the original garbage) and the outside air temperature. On the other hand, sufficient dehumidification could not be performed in the heat exchanger 102. Therefore, the processing tank 101
In some cases, the water in the inside becomes unsuitable for aerobic fermentation, resulting in poor decomposition. When the decomposition failure occurs, the processing tank 101
There is a problem that sludge is generated in the inside.

[0010] The present invention has been made to solve this problem, and an object of the present invention is to provide a garbage disposer capable of improving the amount of humid air dehumidified in a heat exchanger.

[0011]

Means for Solving the Problems To solve the above problems, a garbage disposer according to the present invention comprises a treatment tank for fermenting and decomposing or drying garbage; A heat exchanger that cools the atmosphere inside the processing tank by blowing air to the heat exchanger; and a drain pipe that discharges a drain that is dew-condensed and separated from the atmosphere inside the processing tank cooled by the heat exchanger. A garbage disposer comprising: an outside air temperature reduction device for supplying a liquid to the outside air blown to the heat exchanger and lowering the temperature of the outside air by the heat of evaporation of the liquid. And

The temperature of the outside air blown to the heat exchanger can be reduced by the outside air temperature reducing device. Therefore, the temperature difference between the atmosphere in the processing tank and the outside air can be increased, and sufficient dehumidification can be performed in the heat exchanger. Therefore, the atmosphere in the treatment tank is adjusted to a humidity suitable for aerobic fermentation, and the decomposition of garbage is promoted.

[0013] In the present invention, the outside air temperature lowering device includes: a gas permeable pad through which outside air blown to the heat exchanger can pass; and a means for supplying a liquid to the pad;
It is preferable to have Further, a spray nozzle or a dripping nozzle can also be used as the outside air temperature lowering device.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 (A) is a conceptual system diagram of the garbage processing machine according to the present invention, and FIG. 1 (B) is a conceptual side view of an outside air temperature reducing device of the garbage processing machine. As shown in this figure, the garbage processing machine includes a processing tank 21 into which garbage is put. The processing tank 21 is provided with a stirrer 21a inside. At the bottom of the processing tank 21, a heating means 21b such as an electric heater, a gas burner or a hot water pipe is provided. The garbage put into the treatment tank 21
While being stirred by the stirrer 21a, it is uniformly heated by the heating means 21b.

The inlet side of the heat exchanger 25 is connected to the processing tank 21 via an air extraction pipe 31. The heat exchanger 25 is provided with a pad 23 and a fan 26. The pad 23 is used as an accessory of a cooling device for a greenhouse (for example, CELdek manufactured by Munters).
Etc.), which are made of a material (porous material, plastic fiber, cellulose, etc.) that retains moisture and has air permeability.

As shown in FIG. 1B, a header 22 is arranged on the pad 23. The header 22 is connected to a water tank (not shown) via a pipe 32. An electromagnetic valve 24 is incorporated in the pipe 32, and the supply amount of water from the water tank is adjusted by the electromagnetic valve 24. The throttle amount of the solenoid valve 24 is automatically controlled by a control device (not shown). Further, a drain receiving tray 37 is provided below the pad 23.

When the fan 26 is operated, outside air is blown to the heat exchanger 25 via the pad 23. At this time, the temperature of the outside air blown by the heat of evaporation of the water held by the pad 23 decreases. For this reason, the temperature difference between the atmosphere introduced from inside the processing tank 21 and the outside air can be increased, and the heat exchanger 25 can be sufficiently dehumidified.

Here, a numerical example of the supply amount of water from the header 22 to the pad 23 will be described. When the outside air temperature is 35 ° C. and the humidity is 70%, the air volume of the fan 26 is 600 m ³ / h.
The amount of water supplied from the header 22 is 1.5 to
About 2.5 l / h is optimal. Such a water supply amount is automatically controlled by the control device.

Further, a drain pipe 34 is connected to the outlet side of the heat exchanger 25. From the drain tube 34, a drain that is dew-condensed and separated from the atmosphere in the processing tank cooled by the heat exchanger 25 is discharged. Further, separately from the drain tube 34, the outlet side of the heat exchanger 25 and the processing tank 21
They are connected by an air return pipe 35. This air return pipe 3
In the middle of 5, a blower 27 is incorporated. The air in the processing tank 21 is removed by the blower 27 by the blower 27.
1 and is sucked into the heat exchanger 25.

The operation of the garbage processing machine will be described. Fresh garbage immediately after being discharged produces humid air. When the garbage is put into the processing tank 21, the humid air in the processing tank 21 is taken out to the heat exchanger 25 via the air extraction pipe 31.

The outside air is blown to the heat exchanger 25 via the pad 23 by the operation of the fan 26. The pad 23 is supplied with water in a water tank from the header 22 and is held therein. Therefore, the temperature of the outside air blown to the heat exchanger 25 decreases due to the heat of evaporation of the water contained in the pad 23. Therefore, the humid air introduced into the heat exchanger 25 from inside the processing tank 21 and the heat exchanger 25
Since the temperature difference from the outside air blown to the air can be increased, the heat exchanger 25 can sufficiently dehumidify the high-humidity air.

In this state, by operating the blower 27, the air in the processing tank 21 is sucked into the heat exchanger 25 via the air extraction pipe 31. On the other hand, the drain dew-condensed and separated from the atmosphere in the processing tank cooled by the heat exchanger 25 is discharged from the drain pipe 34 to the outside.

In the above case, the pad 23 is attached to the heat exchanger 25, and water is supplied to the pad 23 from the header 22. For example, as shown in FIG. The nozzle 30 may be provided so that the pad is not provided. In this case, since the water in the water tank is sprayed from the spray nozzle 30, sufficient dehumidification can be performed as described above.

Further, as shown in FIG. 3, a dripping nozzle 40 may be provided instead of the header and the spray nozzle. In this case, the dripping nozzle 40 is installed above the heat exchanger 25 so that water is dropped directly on the heat exchanger 25. Also in this case, sufficient dehumidification can be performed as described above.

A comparison of the amount of dehumidification in the heat exchangers of the garbage disposer of the present invention and the conventional garbage disposer is as follows. In the following comparative values, the relative humidity was 70% in each case, and the atmosphere introduced into the heat exchanger was 45 ° C. saturated air. The dehumidification amount is a relative value when the dehumidification amount at a temperature of 30 ° C. in the conventional example is 100, and the dehumidification amount is defined by the following equation. Dehumidification amount = (absolute temperature of atmosphere in processing tank) − (absolute temperature of heat exchanger outlet air) (1) When the outside air temperature is 30 ° C., the conventional example has a dehumidification amount of 100
On the other hand, in the present invention, the dehumidification amount was 127. (2) When the outside air temperature is 35 ° C., the dehumidification amount is 115 in the present invention, while the dehumidification amount is 75 in the conventional example. (3) When the outside air temperature is 40 ° C., the dehumidification amount is 99 in the present invention, while the dehumidification amount is 43 in the conventional example.

[0026]

As is apparent from the above description, according to the present invention, since the temperature of the outside air blown to the heat exchanger by the outside air temperature reducing device can be reduced, the atmosphere in the processing tank and the outside air can be reduced. Temperature difference can be increased,
Sufficient dehumidification can be performed in the heat exchanger. Therefore, there is an effect that the atmosphere in the treatment tank can be aerobically fermented to promote the decomposition.

[Brief description of the drawings]

FIG. 1 (A) is a conceptual system diagram of a garbage disposal machine according to the present invention, and FIG. 1 (B) is a conceptual side view of an outside temperature lowering device of the garbage disposal device.

FIG. 2 (A) is a conceptual system diagram of a garbage processing machine according to the present invention, and FIG. 1 (B) is a conceptual diagram of another outside temperature reducing device of the garbage processing machine.

FIG. 3 is a conceptual diagram of another outside air temperature reducing device according to the present invention.

FIG. 4 is a conceptual system diagram of a conventional general garbage processing machine.

FIG. 5 is a conceptual configuration diagram showing another example of a conventional garbage processing machine.

[Explanation of symbols]

 21 processing tank 22 header 23 pad 25 heat exchanger 26 fan 30 spray nozzle 40 dripping nozzle

 ──────────────────────────────────────────────────の Continued on the front page F term (reference) 3L113 AA06 AA07 AB02 AB05 AC04 AC08 AC16 AC21 AC25 AC45 AC46 AC48 AC52 AC54 AC58 AC63 AC65 AC67 AC74 AC79 BA01 CA09 CB03 CB05 CB13 CB17 CB24 CB25 CB34 DA02 DA30 4D004 AA03 CA15 CA19 CA48 CB02 CB28 CB37 DA02 DA06 DA09

Claims (4)

[Claims] 1. A treatment tank for fermenting and decomposing or drying garbage, a heat exchanger for exchanging heat between the atmosphere in the treatment tank and the outside air to cool the atmosphere in the treatment tank, and an outside air for the heat exchanger. A garbage disposer comprising: a blower fan; and a drain pipe configured to discharge a drain dew-condensed from the atmosphere in the processing bath cooled by the heat exchanger. A garbage disposer characterized by being provided with an outside air temperature reducing device for supplying the air and reducing the temperature of the outside air by the heat of evaporation of the liquid. 2. The outside air temperature lowering device comprises: a permeable pad through which outside air blown to the heat exchanger can pass; and means for supplying a liquid to the pad. Garbage processing machine. 3. The garbage disposal machine according to claim 2, wherein said outside air temperature lowering device has a spray nozzle. 4. The garbage disposal machine according to claim 2, wherein said outside air temperature lowering device has a drip nozzle for supplying a liquid to said heat exchanger.