JPH10235325A - Garbage treatment apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely sterilize food poisoning bacteria and at the same time to prevent deterioration of garbage treatment efficiency by installing a sterilization operation mode in which the quantity of airflow of a fan to discharge a gas in the inside of a garbage treatment tank is lowered as compared with that at the time of normal gas discharge and the inside of the garbage treatment tank is heated to a specified temperature. SOLUTION: When a sterilization operation mode is selected, a fan 34 is so controlled as to lower the quantity of airflow as compared with that at the time of deodorization-off operation (normal gas discharge operation) and, at the same time, a panel heater 51 and an auxiliary heater 30 are so controlled by control part as to heat the inside of the garbage treatment tank 1 to about 60-70 deg.C. In this case, the object garbage to be treated with which the inside of the garbage treatment tank 1 is filled is heated by the panel heater 51 and, on the other hand, the gas in the space part which is an upper part of the garbage treatment tank 1 and is not filled with the object garbage to be treated is heated by the auxiliary heater 30. Consequently, even if food poisoning bacteria such as Escherichia coil, Salmonella bacteria, etc., exist in the inside of the garbage treatment tank 1, these bacteria are sterilized because all of these bacterial are weak to heat and sterilized at about 60-70 deg.C.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a garbage disposal apparatus for decomposing garbage using the power of microorganisms.

[0002]

2. Description of the Related Art Conventionally, sludge containing organic matter and water has been decomposed (fermented) using microorganisms so as not to affect the environment. Are known. In this garbage processing apparatus, a wood trash called a biochip is filled in a garbage processing tank as a garbage processing material. Raw garbage is thrown into the garbage disposal tank through the input port provided in the garbage disposal tank, and the garbage processing material is stirred by the stirring means rotatably provided in the garbage disposal tank, thereby producing garbage. The garbage is dispersed in the garbage processing material, and the garbage is fermented and decomposed by the action of microorganisms living in the garbage processing material.

[0003] However, food poisoning bacteria such as Escherichia coli, Salmonella, Vibrio parahaemolyticus and the like may be proliferating in the garbage, and when these food poisoning bacteria proliferate, the growth of bacteria contributing to the original garbage disposal is inhibited. In addition, it is not preferable in terms of hygiene that the food waste disposal efficiency is reduced and that food poisoning bacteria proliferate.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and is capable of reliably sterilizing food poisoning bacteria in a garbage disposal tank. It is an object of the present invention to provide a garbage processing apparatus that does not lower the processing efficiency.

[0005]

In order to solve the above problems, a garbage disposal apparatus of the present invention is a garbage disposal apparatus for decomposing garbage with a garbage disposal material put in a garbage disposal tank 1. At 13, a sterilization operation mode is provided for lowering the air volume of the fan 34 for exhausting the garbage disposal tank 1 compared to the time of normal exhaustion and for heating the garbage disposal tank 1 to about 60 ° C. to 70 ° C. It is characterized by comprising. With such a configuration, by setting the sterilization operation mode, the air volume of the fan 34 is reduced as compared with the time of normal exhaustion, and the garbage processing tank 1 is heated to about 60 ° C to 70 ° C,
Food poisoning bacteria such as Escherichia coli, Salmonella, Vibrio parahaemolyticus and the like that inhabit the garbage in the garbage processing tank 1 are sterilized.

Further, a surface heater 51 for heating the garbage processing material filled in the garbage processing tank 1 is provided at a lower portion of the outer surface of the side wall 5 of the garbage processing tank 1. The auxiliary heater 30 for heating the space in the upper part of the side wall 5 where there is no garbage disposal material in the garbage processing tank 1 is provided, and is heated by the surface heater 51 and the auxiliary heater 30 in the sterilization operation mode. Is also preferred. With such a configuration, it is possible to heat the portion of the garbage disposal tank 1 filled with the garbage disposal material 10 and the space portion not filled with the garbage disposal material 10 to the target sterilization temperature. Become.

An outside air temperature detecting element 38 for detecting the outside air temperature is provided, and the air volume of the fan 34 and the heating means in the sterilizing operation mode are controlled in accordance with the detected temperature detected by the outside air temperature detecting element 38. It is also preferable to be characterized in that With such a configuration, it is possible to efficiently control the sterilization operation mode corresponding to the outside air temperature.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on embodiments shown in the accompanying drawings. FIG. 1 shows a garbage processing apparatus 1
3 is a perspective view showing the entirety of FIG. Garbage disposal device 1
A garbage disposal tank 1 having an upper opening is provided inside a case 22 having an upper opening, and a stirring means 16 is rotatably provided in the garbage processing tank 1.

The stirring means 16 comprises a stirring shaft 16a having a hollow pipe shape and stirring blades 16b provided thereon. The stirring shaft 16a is rotatable on bearing portions 23 provided on both side walls 5 of the garbage processing tank 1. It is pivotally supported. Here, at least one end of the stirring shaft 16a protrudes outside the side wall 5 of the garbage processing tank 1, and the sprocket 24 is provided on the protruding portion of the stirring shaft 16a outside as shown in FIG. The sprocket connection shaft 25 having a short length is fitted and attached by a connecting means such as a bolt 50. By doing this,
The stirring shaft 16a provided with the stirring blade 16b is connected to the sprocket 24.
The sprocket 24 can be attached to the end of the stirring shaft 16a projecting outside the garbage processing tank 1 from the inside of the garbage processing tank 1 without being disturbed by the sprocket 24. A stirring shaft 16a is provided in the processing tank 1.
Only the agitating shaft 16a and sprocket connecting shaft 2
5 is not located in the garbage processing tank 1, so that only the stirring shaft 16a provided with the stirring blades 16b located in the garbage processing tank 1 need only be formed of a corrosion-resistant material, Sprocket connection shaft 2 provided with 24
Reference numeral 5 does not necessarily need to be formed of a corrosion-resistant material. Of course, in the present invention, the sprocket connecting shaft 25 may be formed of a corrosion-resistant material.

A motor 17 is mounted on a bottom plate 22a of the case 22, and a chain 26 is wound around a sprocket provided on an output shaft of the motor 17 and a sprocket 24 provided on the stirring means 16, so that the motor 17 is mounted. The forward rotation rotates the stirring means 16 forward, and the reverse rotation of the motor 17 reverses the stirring means 17. The rotation of the stirring means 16 causes the garbage processing material 10 in the garbage processing tank 1 to rotate. Stir and supply air evenly to each part in the garbage processing tank 1 and evenly disperse and mix the garbage thrown into the garbage processing material 10 filled with the garbage in the garbage processing tank 1. Has become. The control of the rotation of the stirring means 16 is controlled by the control unit 21.

A surface heater 51 is attached to an outer surface of a lower portion of the garbage disposal tank 1. The surface heater 51 is for heating the garbage processing material filled in the garbage processing tank 1, and is heated by the surface heater 51 when the temperature of the garbage processing material is low. The surface heater 51 is controlled by a signal from the control unit 21. In the garbage processing tank 1, a garbage processing material 10 made of a carrier such as sawdust-like woody chips called a biochip in which microorganisms have inhabited is placed. As the garbage disposal material 10, for example, a conventionally known woody strip (eg, Japanese Patent Publication No. 2-30)
760 etc.) can be used.

In the garbage processing tank 1, a water content sensor 1 is provided.
8 are provided. In the embodiment, the moisture content sensor 1
Numeral 8 is attached to the inner surface of the side wall 5 of the garbage disposal tank 1. The water content sensor 18 includes a heater (not shown) and temperature detecting means (not shown) composed of a thermistor for detecting the temperature before and after the heater is energized. An output signal of the rate detection sensor 18 is input to the control unit 21. Then, the temperature of the water content detection sensor 18 before the heater is turned on and the temperature in a state where the heater is turned on are detected by the temperature detecting means,
The water content of the garbage disposal material is determined from the data of the temperature change by the temperature detecting means. The water content detection sensor 18 obtains the water content of the garbage processing material 10 in the garbage processing tank 1 so that the control unit 21 controls the operation of the fan 34, the surface heater 51, and the stirring means 16 described later. is there.

Further, an auxiliary heater 30 for heating the air in the garbage processing tank 1 is provided above the garbage processing tank 1, and the auxiliary heater 30 provides a space above the garbage processing tank 1. The inside air is heated.
The opening of the upper cover 22b which forms the upper part of the case 22 is an input port 14, into which the garbage can be freely opened and closed by turning around a shaft attachment portion at the rear end. Cover 27 is provided.

At the upper end of the side wall 5 of the garbage disposal tank 1, an inlet 6 and an outlet 7 and a return outlet to be described later are provided.
As shown in FIGS. 1, 2 and 6, a hanging piece 3 is provided inside the upper end of the side wall 5 of the garbage processing tank 1 via a small gap 4. Side wall 5 of waste treatment tank 1
Conceal the intake port 6 and the exhaust port 7 provided at the upper end portion of the.
Here, the return outlet may also be hidden by the hanging piece 3. A small gap 4 formed between the side wall 5 and the hanging piece 3 of the garbage processing tank 1 is open downward and communicates with the garbage processing tank 1. Here, the hanging piece 3 is formed by bending the upper end portion of the garbage disposal tank 1 into a substantially inverted L-shape, or for putting the garbage formed on the upper cover 22b constituting the upper part of the case 22. It may be hung from the opening edge of the charging port 14 integrally.

As described above, the inlet 6, the outlet 7, and the return outlet are provided at the upper end of the side wall 5 of the garbage processing tank 1, and the small gap 4 is provided between the upper end of the side wall 5 and the hanging piece 3. Is formed in the upper cover 22b as compared with the conventional case where the intake port 6 and the exhaust port 7 are formed so as to open downward in the upper part of the garbage processing tank 1. Mouth 1
4 has a large opening area.

An intake path 28 is provided between the case 22 and the garbage processing tank 1. One end of the intake passage 28 communicates with an outside air intake 43 provided in the bottom plate 22 a of the case 22, and the other end of the intake passage 28 is provided at an upper end of the side wall 5 of the garbage processing tank 1. Is in communication with Furthermore,
An exhaust passage 40 is formed between the case 22 and the garbage processing tank 1. One end of a duct 44 constituting the exhaust passage 40 is connected to an exhaust port 7 provided at the upper end of the garbage processing tank 1, and the duct 44 on the side connected to the exhaust port 7 is connected to the exhaust port 7.
Is provided with a fan 34 at one end side. As shown in FIG. 4, the deodorizing device 2 is provided in the middle of a duct 44 provided with a fan 34 at one end, and a dilution chamber 36 is connected to the other end of the duct 44.

An exhaust port 7 provided at the upper end of the garbage disposal tank 1
At the inlet of the filter (upstream of the fan 34), the filter mounting portion 8
Is provided. An access port 9 communicating with the filter mounting portion 8 is provided at an upper portion of the case 22.
The filter 11 is attached to the filter attaching portion 8 so as to be freely inserted and removed. A refuse processing material return opening 12 for discharging garbage processing material 10 accumulated in the filter mounting portion 8 into the garbage processing tank 1 at the lower end of the filter mounting portion 8.
Is provided.

As shown in FIG. 3, a return inlet 45 of a return branch passage is communicated with a branch between the fan 34 of the duct 44 and the deodorizing device 2, and the return branch passage is a side wall of the garbage processing tank 1. 5, and a part of the exhaust gas sent from the fan 34 to the duct 44 is returned to the garbage processing tank 1 through the return branch channel. By returning a part of the exhaust gas to the garbage disposal tank 1 through the return branch path in this way, a part of the warm exhaust gas is returned to the garbage disposal tank 1 again, and the garbage disposal tank is returned. 1 can be agitated, and the air in the garbage disposal tank 1 does not become cold when exhausted by operating the fan 34, so that effective garbage disposal can be performed.

The deodorizing device 2 has a substantially U-shaped heater 32 disposed in an upper part of a deodorizing case 47, and a flow dividing means 39 provided in the substantially U-shaped heater 32. The gas supplied from the inlet above the 47 is diverted to both sides by the diverting means 39, and the gas substantially uniformly hits the entire U-shaped heater 32, so that the gas is uniformly heated as a whole. ing. The catalyst 31 is arranged below the heater 32. The catalyst 31 forms a honeycomb body 31a with ceramic, and the honeycomb body 31a
Is formed by evaporating platinum as the catalyst 31 on the surface of the substrate. That is, when the gas containing the odor heated by the heater 32 passes through the honeycomb body 31a, the gas is deodorized by the heated catalyst 31 made of platinum.

A dilution fan 35 is provided in the dilution chamber 36, and an outside air inlet 50 for sucking outside air is provided on a lower surface of a rear portion of the dilution chamber 36. The outside air inlet 50 is provided on the bottom plate 22 a of the case 22. In the embodiment, the lower surface of the dilution chamber 36 is constituted by the bottom plate 22a, so that the bottom plate 22a is provided with an outside air inlet 50. Bottom plate 2
2a is provided with a leg 22b on the lower surface thereof,
The outside air can be taken in from the outside air inlet 50 provided at a. Further, an outlet 42 is provided at the front of the dilution chamber 36. Then, by operating the dilution fan 35, the outside air is taken in from the outside air inlet 50, the high-temperature gas passing through the catalyst 31 is diluted in the dilution chamber 36, the temperature is reduced, and the air is exhausted to the outside from the outlet 42. Has become. Deodorizing device 2 consists of garbage treatment tank 1 and case 2
2, the dilution chamber 36 provided in communication with the lower part of the deodorizing device 2 is provided close to the side surface of the case 22, so that the outside air inlet 50 is also connected to the bottom plate 22 a of the case 22. In the vicinity of the outside end of the. When the outside air inlet 50 opens near the outer end of the bottom plate 22a, rainwater or the like may enter. For this reason, as shown in FIG. 5, a water intrusion prevention piece 50a having a substantially U-shaped horizontal cross section is vertically provided on the side of the outside air inlet 50.

A temperature detecting element 37 for detecting the temperature of the catalyst is provided slightly below the lower catalyst 31 in the deodorizing case 47. The controller 21 controls the heater 32 based on the temperature detected by the temperature detecting element 37. Is performed so as to control the temperature of the catalyst 31 to a design value. Further, when an abnormal temperature is detected by the temperature detecting element 37, an error is notified by the notifying means, and the heater 32 and the fan 34 are controlled to be turned off. Here, if the abnormal temperature is detected, the heater 32 or the fan 34 is not turned off immediately, but the air volume of the fan 34 is increased. If the temperature detecting element 37 still detects the abnormal temperature, the heater 32 or the fan 34 is turned off. It is to be. A temperature fuse 49 is provided in the heater 32 in the deodorizing case 47, and the fan 34 is used during the deodorizing operation.
Is stopped, or when the output of the heater 32 is abnormal, the thermal fuse 49 is blown.
Is cut at, for example, 390 ° C. Further, before or after the dilution fan 35 in the dilution chamber 36, an outside air temperature detecting element 38 is provided to detect the temperature of the outside air sucked from the outside air inlet 50, and when the outside air temperature is low, Control the auxiliary heater 30 (turn on the auxiliary heater 30 when the outside air temperature is low, or increase the heating temperature of the auxiliary heater 30), or control the air flow of the fan 34 (decrease the air flow when the outside air temperature is low). If there is an abnormal temperature rise in the temperature detection by the outside air temperature detecting element 38, the diluting fan 35 stops for some reason or the blowout port 42 is closed in the deodorizing operation. The deodorizing operation is controlled so as to be regarded as being performed.

The exhaust passage 40 provided with the deodorizing device 2 is disposed between the case 22 and the garbage disposal tank 1 as described above.
Is disposed so as to be located in the middle of the intake path 28 described above. In other words, the outer peripheral portion of the deodorizing device 2 is covered with a part of the intake passage 28, and heat radiation from the deodorizing device 2 is dissipated. (It is a collection unit 29)
And the outside air supplied from the outside air intake port 43 and flowing through the intake path 28 is heated by the heat radiation from the deodorizing device 2 and the outside air supplied from the intake port 6 into the garbage treatment tank 1 is heated. It is supplied by. Here, the intake path 28 may be the whole of the gap between the side wall 5 of the garbage disposal tank 1 and the case 22 as the intake path 28,
Alternatively, the gap between the side wall 5 of the garbage disposal tank 1 and the case 22 may be partitioned by a partition to form the intake path 28 extending from the outside air intake 43 to the intake port 6. The intake port 6 may be connected to the intake port 6 by a separate duct, which may be used as an intake path 28. In any case, at least the outer peripheral portion of the deodorizing device 2 is covered by an exhaust heat recovery section 29 provided in the intake path 28. Thus, the heat radiation from the deodorizing device 2 is recovered to heat the outside air. Note that a heat insulating material 52 is attached to the outer peripheral portion of the deodorizing case 47 of the deodorizing device 2 so as to reduce heat loss. However, even if the heat insulating material 52 is provided, heat is still radiated (for example, about 20% of heat is radiated). This is effectively recovered by the exhaust heat recovery unit 29.

In the garbage processing apparatus 13 configured as described above, when garbage is put into the garbage processing tank 1, the stirring means 16 rotates to mix the garbage with the garbage processing material. Then, the garbage is decomposed by the action of microorganisms living in the garbage disposal material. By operating the fan 34, exhaust such as moisture and gas generated by the garbage processing in the garbage processing tank 1 is exhausted to the outside through the exhaust passage 40, and at the same time, the fan 34 is operated and exhausted. At the same time, the outside air passes through the intake path 28 and
Is supplied into the garbage processing tank 1, whereby fresh oxygen is supplied to the garbage processing material, thereby activating the action of microorganisms. At this time, by heating the surface heater 51, the garbage disposal material 10 in the garbage disposal tank 1 is heated.
Is controlled so that the temperature of the garbage becomes the optimum garbage disposal temperature.

On the other hand, the operation of the fan 34 includes both a deodorizing operation and a deodorizing operation. When the deodorizing operation by the deodorizing device 2 is performed, the fan 34, the heater 32, the dilution fan 35, and the auxiliary heater 30 are turned on to perform the deodorizing operation. Is sent to the exhaust passage 40. Thereby, outside air is sucked into the garbage disposal tank 1 from the intake port 6. Then, a part of the exhaust gas containing the odor sent to the exhaust passage 40 (in the embodiment, half of the exhaust gas sent to the exhaust passage 40) is returned to the garbage processing tank 1 again through the return branch passage. The gas in the upper space in the garbage processing tank 1 is agitated, so that the outside air flowing into the upper space in the garbage processing tank 1 from the intake port 6 does not short-pass to the exhaust port 7, A part of the exhaust gas having a relatively high temperature is returned, mixed and agitated, and air is supplied to the garbage processing material 10 filled in the garbage processing tank 1.
On the other hand, in the exhaust containing the odor sent to the exhaust passage 40, the other exhaust (in the embodiment, half of the exhaust sent to the exhaust passage 40) excluding a part flowing to the return branch passage is a deodorizing device. 2 and is diverted by the diverter 39 to approximately U
The exhaust hits the heater 32 in the shape of a letter substantially uniformly, and the exhaust gas is heated uniformly as a whole. Then, the heated exhaust gas passes through the honeycomb body 31a and comes into contact with the catalyst 31 made of platinum deposited on the surface of the honeycomb body 31a. Here, the catalyst 31 made of platinum is heated, and the odor in the exhaust gas is deodorized. Then, the high-temperature exhaust gas that has been deodorized by the catalyst flows into the dilution chamber 36, and is diluted to have a low temperature, and
The temperature is reduced to a low temperature and exhausted to the outside.

The heater 32 has a catalyst temperature of 150 ° C.
And 250 ° C., and is usually operated in a normal deodorizing mode in which the catalyst temperature is controlled to 150 ° C. If necessary, the catalyst temperature is set to 250 ° C. It is operated in the strong deodorizing mode controlled to be as follows. In the case of a platinum catalyst, in an operation in a normal deodorization mode at 150 ° C., about 90% of sulfur contained in exhaust gas is deodorized, and about 30% of ammonia is deodorized. In the operation in the 250 ° C. strong deodorizing mode, about 90% of the sulfur-based is deodorized, and about 90% of the ammonia is deodorized. When operating in the strong deodorizing mode, control is performed so that the deodorizing operation is automatically turned off after a certain time (for example, 48 hours) has elapsed.

When the amount of garbage per day is 1 kg, 800 kg to 900 g of water is contained in 1 kg of garbage, and it is necessary to discharge this water in one day. Therefore, in the related art, it is necessary to exhaust at a rate of 100 liters / minute to 200 liters / minute. However, in the present embodiment, it is necessary to operate the fan 34 at a normal air volume of 20 liters / minute during the deodorizing operation. Is used to discharge 800 g to 900 g of water for one day.
Therefore, in the present invention, the garbage processing material 10 in the garbage processing tank 1 is heated by the surface heater 51 during the garbage processing operation and stirred by the stirring means 16 to decompose the garbage. By generating steam,
By heating the upper part of the garbage processing tank 1 by the auxiliary heater 30 arranged above the portion of the garbage processing tank 1 in which the garbage processing material 10 is put, the generated steam is generated in the upper part of the garbage processing tank 1 No condensation on the side wall 5 of
By heating the gas in the upper space in the garbage processing tank 1 and thus heating the gas in the garbage processing tank 1, the relative humidity in the garbage processing tank 1 is reduced. Even if the amount of exhaust air from the fan 34 is reduced by lowering the relative humidity (20 liters / minute in the embodiment) compared to the related art, the amount of water vapor contained in the reduced amount of exhaust air is increased. By the way, as described above, since the heater 32 of the deodorizing device 2 is heated in the deodorizing operation, the heat radiation from the deodorizing device 2 is recovered by the exhaust heat recovery unit 29 of the intake path 28 and heated. Since the outside air is supplied from the intake port 6 into the garbage processing tank 1, the outside air is supplied in a pre-heated state, and the temperature of the gas in the upper part of the garbage processing tank 1 does not easily decrease. In this respect, the relative humidity inside the garbage disposal tank 1 can be reduced also in this regard.

As described above, during the deodorizing operation, the fan 34 operates at 20 liters / minute, and the duty of the fan 34 is controlled in the range of 20 liters / minute to 100 liters / minute in consideration of the control design. It has become. When the high-temperature exhaust gas deodorized by the catalyst flows into the dilution chamber 36 at, for example, 20 liters / minute and 250 ° C., when the outside air sucked from the outside air inlet 50 by the dilution fan 35 is 30 ° C. and 200 liters / minute, It is diluted by a dilution fan 35 in a dilution chamber 36 and blown out from a blowout port 42 at 50 ° C. and 220 liters / minute.

On the other hand, in the case of the deodorizing operation, the air flow of the fan 34 is controlled so as to be 100 liter / min, and the power supply to the heater 32 of the deodorizing device 2 is turned off. The power supply to 30 is also turned off. In addition, in the case of the deodorization cutoff operation, the dilution fan 35 may be operated or not. By operating the dilution fan 35 at the time of the deodorization cutoff operation, the exhaust containing the odor and the moisture is diluted in the dilution chamber 36 and exhausted to the outside, thereby reducing the odor.

At the time of this deodorizing cutoff operation, the deodorizing device 2
If the temperature of the exhaust gas is low, the moisture contained in the exhaust gas may condense and clog the inside of the honeycomb body 31a with the dew condensation water and the amount of air blow may change. Even in the case of the above, when the outside air temperature is equal to or lower than a certain temperature or when the temperature of the garbage processing material 10 in the garbage processing tank 1 is equal to or lower than a certain temperature, the heater 32 is energized to control the duty of the heater 32, and the condensation is formed. It is controlled so as not to occur.

Next, in the sterilizing operation mode, the fan 34 is controlled so as to reduce the exhaust air volume as compared with the deodorizing operation (ie, the normal exhaust operation).
A surface heater 51 so as to heat the inside to about 60 ° C. to 70 ° C.,
The auxiliary heater 30 is controlled by the control unit 21. Here, the garbage processing material 10 filled in the garbage processing tank 1 is heated by the surface heater 51 and the auxiliary heater 3 is heated.
0 heats the gas in the space in the upper part of the garbage processing tank 1 where the garbage processing material 10 is not filled. Then, the garbage processing material filled in the garbage processing tank 1 and the gas in the upper space of the garbage processing tank 1 are reduced by about 60%.
By heating the food waste to 1 to 70 ° C., even if food poisoning bacteria such as Escherichia coli, Salmonella, Vibrio parahaemolyticus, etc. are present in the garbage disposal tank 1, these food poisoning bacteria are sterilized. That is, Escherichia coli, Salmonella, Vibrio parahaemolyticus, and the like, which are typical food poisoning bacteria, are all weak to heat and die at about 60 ° C to 70 ° C. At this time, the bacteria that inhabit the garbage processing material 10 and degrade the garbage are not sterilized at 60 ° C. to 70 ° C. and continue to survive. It must not be.

In the sterilizing operation mode, the garbage disposal tank 1 is controlled by controlling the fan 34 so as to reduce the exhaust air volume as compared with the deodorizing operation (ie, the normal exhaust operation).
The inside is effectively reduced to about 6 by the surface heater 51 and the auxiliary heater 30.
It can be heated to 0 ° C to 70 ° C. Further, in the sterilizing operation mode, when the inside of the food waste treatment tank 1 is heated to about 60 ° C. to 70 ° C. by the surface heater 51 and the auxiliary heater 30 to sterilize food poisoning bacteria such as Escherichia coli, Salmonella, Vibrio parahaemolyticus, etc., the outside air temperature is detected. The outside air temperature is detected by the element 38, and the control unit 21 responds to the outside air temperature.
By controlling the air volume of the fan 34 and the outputs of the surface heater 51 and the auxiliary heater 30 in the sterilization operation mode, the inside of the garbage processing tank 1 is maintained at about 60 ° C. to 70 ° C. in the sterilization operation mode. This ensures that only food poisoning bacteria such as Escherichia coli, Salmonella, Vibrio parahaemolyticus and the like are sterilized regardless of the outside air temperature, and bacteria for decomposing garbage are not sterilized.

FIG. 8 is a control block diagram of the present invention.
6. The surface heater 51, the auxiliary heater 30, the fan 34, the heater 32, and the dilution fan 35 are respectively controlled to switch between the deodorization cutoff operation mode and the deodorization operation mode, and the strong deodorization operation mode and the weak deodorization operation in the deodorization operation mode. Mode and the sterilization operation mode can be selected.

[0033]

According to the invention of claim 1 of the present invention, as described above, in a garbage processing apparatus for decomposing garbage by a garbage processing material put in a garbage processing tank, Reduce the air volume of the fan for exhausting the garbage disposal tank compared to normal exhausting and keep the inside of the garbage disposal tank at about 60 ° C.
Since a sterilization mode for heating to ~ 70 ° C is provided, by setting the sterilization operation mode, the inside of the garbage disposal tank is heated to about 60 ° C to 70 ° C,
Food poisoning bacteria such as Salmonella and Vibrio parahaemolyticus can be sterilized, and food poisoning bacteria do not propagate in the garbage treatment tank, which is sanitary.
When heating to 70 ° C to 70 ° C, the air volume of the fan is reduced as compared to the normal exhaust time.
In heating to ~ 70 ° C, the inside of the garbage disposal tank can be effectively heated and sterilized while preventing the heat in the garbage disposal tank from escaping due to the exhaust gas as much as possible.

According to the second aspect of the present invention, in addition to the effects of the first aspect of the present invention, in addition to the effects of the first aspect of the present invention, the raw garbage disposal tank is filled in the lower part of the outer surface of the side wall of the garbage disposal tank. A surface heater for heating the garbage disposal material is provided, and an auxiliary heater for heating the space in the upper part of the garbage disposal tank where there is no garbage treatment material is provided above the outer surface of the side wall of the garbage disposal tank. In the sterilization mode, heating is performed by the surface heater and the auxiliary heater, so that the portion of the garbage disposal tank filled with garbage disposal material and the space portion not filled with garbage disposal material are heated to the target sterilization temperature. You can do it.

According to a third aspect of the present invention, in addition to the effects of the first or second aspect, an outside air temperature detecting element for detecting an outside air temperature is provided. Since the fan air volume and the heating means in the sterilization operation mode are controlled according to the detection temperature detected by the detection element, the sterilization operation mode can be controlled efficiently according to the outside air temperature, and the change in the outside air temperature can be controlled. Irrespective of this, it is possible to surely sterilize only food poisoning bacteria and not to sterilize bacteria for decomposing garbage.

[Brief description of the drawings]

FIG. 1 is a partially omitted schematic perspective view of an embodiment of the present invention.

FIG. 2 is a front sectional view of the same.

FIG. 3 is a side sectional view of the same.

FIG. 4 is a schematic configuration diagram of the deodorizing device of the above.

FIG. 5 is a bottom view of the same.

FIG. 6 is an enlarged sectional view of a suction port portion of the above.

FIG. 7 is a rear view showing the outlet portion of the same.

FIG. 8 is a control block diagram of the above.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Garbage processing tank 5 Side wall 10 Garbage processing material 13 Garbage processing apparatus 30 Auxiliary heater 34 Fan 38 Outside temperature detection element 51 Surface heater

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kazumasa Rokushima 1048 Kadoma Kadoma, Osaka Prefecture Matsushita Electric Works Co., Ltd. (72) Inventor Hideo Fujimoto 1048 Kadoma Kadoma, Kadoma City, Osaka Prefecture Inside Matsushita Electric Works Co., Ltd. (72) Inventor Takashi Hyodo 1048 Kadoma Odoma, Kadoma City, Osaka Pref. 1048, Okadoma, Kadoma, Fumonma-shi Matsushita Electric Works Co., Ltd. (72) Inventor Tomoaki Fujii 1048, Okadoma, Kadoma-shi, Osaka Pref. Matsushita Electric Works, Ltd.

Claims (3)

[Claims] In a garbage disposal apparatus for decomposing garbage with a garbage disposal material placed in a garbage disposal tank, the air volume of a fan for exhausting the garbage disposal tank is smaller than that of a normal exhaust. About 60 ℃ ～ 70
A garbage disposal apparatus comprising a sterilization mode for heating to ℃. 2. A surface heater for heating the garbage disposal material filled in the garbage disposal tank is provided at a lower portion of an outer surface of a side wall of the garbage disposal tank, and at an upper portion of an outer surface of the side wall of the garbage disposal tank. 2. The garbage according to claim 1, wherein an auxiliary heater for heating an upper space in the garbage disposal tank where there is no garbage disposal material is provided, and the garbage is heated by a surface heater and an auxiliary heater in a sterilization mode. Processing equipment. 3. An outside air temperature detecting element for detecting an outside air temperature is provided, and the air volume of the fan and the heating means in the sterilization operation mode are controlled in accordance with the detected temperature detected by the outside air temperature detecting element. The garbage disposal apparatus according to claim 1 or 2, wherein