JPH09215969A - Garbage disposer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a garbage disposer capable of securely preventing the diffusion of an offensive smell to the atmosphere by the back flow thereof. SOLUTION: Stirring blades 14 are arranged in a garbage disposal tank 12 and a charging port 16 and a condensing plate 18 are provided to the garbage disposal tank 12 and a discharge port 20 is provided to the bottom part thereof. Air passing through an air filter 28 is introduced into an air passing inlet 24 through piping 36 having a valve 30, a flow rate adjusting valve 32 and an air heater 34. The exhaust gas from an air passing outlet 26 is introduced into a deodorizing device 50 through piping 44 having a suction blower 42 and piping 48 having a valve 46. The control of the opening degree of the flow rate adjusting valve 32 and the control of the sucking air amt. of the suction blower 42 are performed so that the humidity in the disposal tank 12 detected by a humidity sensor 70 becomes a predetermined range. When the suction blower 42 is stopped, the flow rate adjusting valve 32 is fully closed and the air heater 34 is stopped.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a food waste disposer for decomposing food waste by microorganisms, and more particularly to a food waste disposer having a deodorizer for deodorizing exhaust gas from a food waste disposal tank.

[0002]

2. Description of the Related Art A garbage disposing machine which puts garbage into a garbage disposal tank and decomposes the garbage by microorganisms is becoming widespread. A processing medium such as sawdust is stored in the raw garbage processing tank, and the raw garbage introduced into the processing tank is stirred and mixed with the processing medium by a stirring blade.
By maintaining the temperature and humidity inside the garbage processing tank at an appropriate temperature, microorganisms gradually decompose the garbage.

It is known that a heater is provided in the processing bath in order to maintain the temperature in the bath at a required temperature, and the amount of air blown from an air pump for supplying air is controlled in order to bring the humidity in the bath to a predetermined humidity. (JP-A-5-221765). It is also known that the exhaust gas from the tank is passed through a deodorizer for deodorization (the same publication). It is also known to exhaust gas from the tank by an exhaust device (Japanese Patent Laid-Open No. 7-32).
No. 8589).

[0004]

In the conventional garbage disposal with a deodorizer for deodorizing exhaust gas, the gas in the tank is sucked when the air supply to the tank or the exhaust from the tank is stopped. There was a risk that it would flow back through the mouth and into the atmosphere, causing odor to spread around the garbage processing equipment.

It is an object of the present invention to provide a food waste disposer capable of reliably preventing the backflow of odor into the atmosphere.

[0006]

The garbage processing machine of the present invention comprises a garbage disposal tank provided with a stirring blade for stirring the introduced garbage and a heater for heating the garbage. In a food waste processing machine having an air supply means for supplying air into the food waste processing tank and a deodorizer into which exhaust gas from the food waste processing tank is introduced through exhaust means, the exhaust means is stopped. It is characterized in that a backflow prevention means for preventing the gas in the garbage processing tank from flowing back into the atmosphere through the air supply means is provided.

In such a garbage disposal, while the exhaust means is operating, the gas in the garbage disposal tank is discharged outside the tank through the deodorizer, and the air supply means is supplied to the inside of the garbage disposal tank. Air flows in through. Therefore, the odor is prevented from flowing out of the tank by backflowing the air supply means.

As the backflow preventing means, a valve that is closed when the exhaust means is stopped is suitable. This valve may also serve as a flow rate control valve that controls the amount of air introduced into the garbage processing tank.

It is preferable to provide an air heater for heating the air introduced into the garbage processing tank. In this case, in order to prevent overheating of the air heater, it is preferable to stop the operation of the air heater when stopping the exhaust means that stops the inflow of air into the air heater.

In the present invention, by returning a part of the exhaust gas from the exhaust means to the garbage processing tank, the load on the deodorizer can be reduced, the life of the deodorant can be extended, and energy saving of the heat source can be achieved. You can also

In this case, a condenser may be provided in the exhaust circulation channel to remove water from the circulating gas.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION A garbage disposal 10 according to an embodiment will be described with reference to FIG. A stirring blade 14 is disposed inside the raw garbage processing tank 12 of the raw garbage processing machine 10. The stirring blade 14 is rotationally driven by the motor 14m.

An input port 16 is provided in the upper part of the garbage processing tank 12.
A condenser plate 18 is provided, and a discharge port 20 is provided at the bottom. The input port 12 is provided with an opening / closing lid, and the input port 12 is provided with a cutter and a crusher (not shown) for shredding raw garbage. A gutter 22 is provided on the inner surface of the condensing plate 18, and a drainage drain pipe (not shown) is connected to the gutter 22. The discharge port 20 is provided with an openable lid.

At the upper part of the garbage disposal tank 12, there is a ventilation inlet 2.
4 and a ventilation outlet 26 are provided.

The air filter 2 is connected to the ventilation input port 24.
The air that has passed through 8 is introduced through a pipe 36 having a valve 30, a flow rate adjusting valve 32, and an air heater 34. An air temperature sensor 38 is provided downstream of the air heater 34. The detection signal of this sensor 38 is sent to the air heater controller 4
0 is input, and the energization of the heater 34 is controlled so that the temperature detected by the sensor 38 reaches a predetermined temperature.

Exhaust air from the ventilation outlet 26 is sucked by the suction blower 4.
2 is introduced into the deodorizer 50 through a pipe 44 having a valve 2 and a pipe 48 having a valve 46. Reference numeral 50a denotes a seal water supply pipe into the deodorizer 50. The drain outlet of the deodorizer 50 and the suction blower 42 is connected to the drain tank 52.

A pipe 54 for exhaust circulation is branched from the pipe 44, and the pipe 54 communicates with the upstream side of the flow rate adjusting valve 32. A water-cooled condenser 56 and a valve 58 are provided in the middle of the pipe 54.

A heater 60 is provided in the garbage processing tank 12. Temperature sensors 62 and 64 are provided so as to detect the temperature inside the garbage disposal tank 12 and the temperature of the heater 60, and the detection signals of these sensors 62 and 64 are input to the heater controller 66 to treat the garbage. Energization of the heater 60 is controlled so that the temperature in the tank 12 reaches the target temperature (and the overheat of the heater 60 is prevented).

A humidity sensor 70 is provided so as to detect the humidity in the garbage processing tank 12, and the detection signal is input to the humidity controller 72. The opening control of the flow rate adjusting valve 32 and the suction air volume control of the suction blower 42 are performed so that the humidity detected by the humidity sensor 70 falls within a predetermined range.

When the suction blower 42 is stopped, the flow rate adjusting valve 32 is fully closed. The air heater controller 4
The operation signal of the suction blower 42 is also input to 0,
When the blower 42 is stopped, the power supply to the air heater 34 is stopped.

A processing medium is stored in the garbage processing tank 12. This processing medium is sawdust, chaff, rice bran,
Various materials such as coconut husk chips, zeolite, wood chips, and okara are used.

In order to dispose of raw garbage with the raw garbage processing machine 10, the lid of the inlet 16 is opened, the raw garbage is put into the inlet 16, and then the lid is closed. Then, the raw garbage is cut by a cutter (not shown), crushed by a crusher (not shown), and then dropped into the raw trash processing tank 12.

The garbage thus finely crushed is stirred and mixed with the processing medium by the stirring blade 14. In addition, the warm air that has passed through the air heater 34 is fed from the ventilation inlet 24 to the garbage processing tank 1
The gas is discharged from the ventilation outlet 26 to the outside of the garbage processing tank 12 while being introduced into the inside 2.

In a normal case, the amount of ventilation exhausted from the ventilation outlet 26 to the outside of the raw trash processing tank 12 and the stirring of the raw dust and the processing medium by the stirring blades 14 are determined by the temperature sensor 62. The temperature of the mixed layer of dust and the processing medium is controlled to fall within an appropriate range, and the humidity of the mixed layer detected by the humidity sensor 70 is controlled to fall within an appropriate range.

The air containing moisture that has risen in the garbage disposal tank 12 comes into contact with the condenser plate 18 to condense the moisture. These water droplets travel along the condensing plate 18 and immediately fall into the gutter 22,
It is discharged to the drain tank 52 via the drain pipe.
The condensing plate 18 may be provided with cooling means such as water cooling until it is air-cooled by the outside air.

A part of the exhaust gas from the blower 42 flows from the pipe 44 to the pipe 54 and is returned to the upstream side of the flow rate adjusting valve 32 via the condenser 56. The rest of the exhaust gas from the blower 42 flows from the pipe 44 to the pipe 48, is deodorized by the deodorizer 50, and is then released to the atmosphere. The gas released to the atmosphere is
It is deodorized by the deodorizer 50, and no odor is emitted into the atmosphere.

By adjusting the openings of the valves 46 and 58, the amount of circulated air can be adjusted. By circulating a part of the hot exhaust gas from the garbage disposal tank 12 in this way,
The heat generation amount of the air heater 34 and the heater 60 can be suppressed, and the energy saving of these heaters 34 and 60 can be achieved. Further, the load on the deodorizer 50 can be reduced and the life of the deodorant can be extended.

When stopping the suction blower 42, the flow rate adjusting valve 32 is closed. As a result, the odorous gas does not flow backward from the garbage processing tank 12 to the outside of the tank through the pipe 36, and the odor is prevented from being released into the atmosphere. In addition,
Since the odor diffused from the garbage processing tank 10 to the pipe 48 side is deodorized by the deodorizer 50, the odor is not released into the atmosphere. In order to prevent the odor diffused from the pipe 44 to the pipe 54 side from flowing out to the air filter 28 side, the valve 58 (or the valve 30) is stopped when the blower 42 is stopped.
Is preferably closed. When closing the valve 30, it is not necessary to close the flow rate adjusting valve 32, but it may be closed.

Since the energization of the air heater 34 is stopped when the suction blower 42 is stopped, overheating of the air heater 34 can be reliably prevented.

[0030]

As described above, according to the garbage disposal of the present invention, there is no emission of odor into the atmosphere due to the backflow from the garbage disposal tank, and the environment around the garbage disposal is improved. You can

According to the garbage disposal of claim 3, the number of valves can be reduced. According to the garbage disposal of claim 4, overheating of the air heater is reliably prevented.
According to the garbage processing machine of the fifth aspect, it is possible to save energy when processing the garbage. According to the garbage disposal of claim 6, excess water can be removed efficiently.

[Brief description of drawings]

FIG. 1 is a system diagram of a garbage disposal according to an embodiment.

[Explanation of symbols]

 10 Garbage Disposer 12 Garbage Disposal Tank 14 Stirring Blade 16 Input Port 18 Condensing Plate 20 Discharge Port 22 Gutter 24 Ventilation Inlet 26 Ventilation Outlet 32 Flow Rate Control Valve 34 Air Heater 42 Suction Blower 50 Deodorizer 56 Condenser

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Yoshikazu Aoe 1925-3 Shimoishi Togami, Kitamoto City, Saitama Prefecture

Claims (6)

[Claims] 1. A raw garbage processing tank provided with a stirring blade for stirring the introduced raw garbage and a heater for heating the raw garbage, and an air supply for supplying air into the raw garbage processing tank. And a deodorizer into which exhaust gas from the garbage disposal tank is introduced through an exhaust means, wherein the gas in the garbage disposal tank is supplied with the air when the exhaust means is stopped. An apparatus for treating garbage according to claim 1, further comprising a backflow prevention means for preventing backflow into the atmosphere through the means. 2. The garbage processing machine, wherein the backflow prevention means is a valve that is closed when the exhaust means is stopped. 3. The garbage processing machine according to claim 2, wherein the valve also serves as a flow rate control valve for adjusting the amount of air introduced into the garbage processing tank. 4. The air heater according to claim 2 or 3, wherein an air heater is provided in an air flow passage between the valve and the garbage processing tank, and the air heater is stopped when the exhaust means is stopped. A garbage disposal machine characterized by being present. 5. The garbage processing according to any one of claims 1 to 4, further comprising a circulation means for returning a part of the exhaust gas from the exhaust means into the garbage disposal tank. Machine. 6. The garbage disposal according to claim 5, wherein the circulation means includes a condenser that cools the circulated exhaust gas to condense water.