JPH07139878A - Raw refuse treating apparatus - Google Patents

Abstract

PURPOSE:To effectively discharge drain and to eliminate unsanitary periphery and interior. CONSTITUTION:An exhaust port 2 is formed at a treating tank 1 for decomposing raw refuse, and heating means 3 for applying heat to the tank 1 is provided. Exhaust means 4 for discharging vapor generated by heating from the port 2 is provided at the tank 1. Drain generated by the decomposition of the refuse is converted to vapor by heating, and can be discharged from the port 2, and hence it is not necessary to provide a drain port at the tank 1. A noxious insect generated at a periphery or an interior of the tank 1 can be killed by the heat by heating the tank 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a food waste processing device for decomposing food waste.

[0002]

2. Description of the Related Art Conventionally, it has been practiced to decompose sludge containing organic substances and water by using microorganisms (fermentation) to the extent that it does not affect the environment, and dispose of it. An example of the processing device is shown in FIG. Reference numeral 1 denotes a processing tank, which is provided with an input port 12 for inputting raw garbage on the upper surface, and the input port 12 can be opened and closed by an opening / closing lid 13. A drain port (drain port) 14 that opens inside and outside the processing tank 1 is formed in the lower portion of the processing tank 1. Inside the treatment tank 1, a stirring device 17 formed by attaching a stirring blade 16 around the rotating shaft 15 is provided, and a wood strip 18 is filled as a garbage processing material in which microorganisms parasitize.

In this food waste processing apparatus, food waste is put into the processing tank 1 through the input port 12, and the food waste and the wood chips 18 are mixed by the agitator 17 so that the food waste is made into the wood chips 18. It was decomposed by parasitic microorganisms, and the wastewater generated by this decomposition treatment was discharged from the drain port 14 to sewage or the like.

[0004]

However, in the above-mentioned food waste treating apparatus, since the wastewater produced by the decomposition treatment contains a high concentration of microorganisms, the wastewater is discharged from the drain port 14.
Contact with air in the vicinity causes a microbial film to be generated, and the microbial film may clog the drainage port 14 so that the drainage cannot be reliably discharged. Further, harmful insects such as flies may be generated in the vicinity of the drainage port 14 and the surroundings and inside of the treatment tank 1 may become unsanitary.

The present invention has been made in view of the above points, and an object of the present invention is to provide a food waste processing apparatus which can reliably discharge waste water and does not cause unsanitary surroundings and inside. It is what

[0006]

A food waste processing apparatus according to the present invention has an exhaust port 2 formed in a processing tank 1 in which food waste is decomposed, and a heating means 3 for applying heat to the processing tank 1. The treatment tank 1 is equipped with an exhaust unit 4 for exhausting steam generated by heating from an exhaust port 2.

In the present invention, the heating means 3 can be provided below the processing tank 1. Further, in the food waste processing apparatus according to the present invention, the processing tank 1 is formed in a double structure with the inner tank 1a and the outer tank 1b, and the exhaust passage portion 6 is provided between the side walls 5a and 5b of the inner tank 1a and the outer tank 1b. And an intake passage portion 7 are provided, a first exhaust port 8 communicating with the inside of the inner tank 1b and the exhaust passage portion 6 is formed on one side wall 5a of the inner tank 1b, and the one side wall 5 of the outer tank 1b is formed.
A second exhaust port 9 for communicating the exhaust passage portion 6 to the outside is provided in b, and a first intake port 10 that communicates with the inside of the inner tank 1a and the intake passage portion 7 is formed on the other side wall 5a of the inner tank 1a. At the same time, a second intake port 11 for communicating the intake passage portion 7 to the outside is provided on the other side wall 5b of the outer tank 1b, and at least the intake passage portion 7 is provided.
It is characterized in that the heating means 3 is provided therein.

[0008]

Operation: The exhaust port 2 is formed in the processing tank 1 for decomposing food waste, and the heating means 3 for applying heat to the processing tank 1 is provided, and the exhaust means 4 for discharging the steam generated by the heating from the exhaust port 2 is processed. Since it is provided in the tank 1, the waste water generated in the decomposition treatment of food waste can be converted into steam by heating and discharged from the exhaust port 2, and it is not necessary to provide a drain port in the processing tank 1. Further, by heating the treatment tank 1, it is possible to kill the harmful insects which are generated around or inside the treatment tank 1 by heat.

[0009]

EXAMPLES The present invention will be described in detail below with reference to examples. Figure 1
One example is shown in FIG. 1, and 1 is a processing tank whose upper surface is opened as an input port 12, and the input port 12 can be opened and closed by a lid 23. An exhaust port 2 is formed in the upper part of one side wall 5 of the processing tank 1 by a plurality of through holes 35 opening in and out of the processing tank 1, and in the upper part of the other side wall 5 inside and outside the processing tank 1. The intake port 19 is formed by the plurality of through holes 36 that open.
And a fan 20 is attached as an exhaust means 4 inside the exhaust port 2. Inside the processing tank 1, a stirring device 17 formed by mounting a stirring blade 16 around the rotating shaft 15 is provided. The stirring device 17 is a device that is manually operated or rotated by a motor drive device to perform stirring. The processing tank 1 is filled with wood chips 18 as a food waste treatment material in which microorganisms parasitize. A heater 22 is provided as a heating means 3 in contact with the outside of the bottom surface 21 of the processing tank 1. The temperature of the heater 22 can be adjusted by a controller or the like. As the heating means 3, warm air may be blown onto the bottom surface 21 of the processing tank 1. In this way, the garbage processing device is formed.

Next, the operation of the food waste processing apparatus will be described in detail. First, the lid 23 is opened and raw garbage is put into the processing tank 1 through the feeding port 12. At this time, normal domestic wastewater may be added together with the garbage. Next, the lid 23 is closed and the processing tank 1
The inside is hermetically closed, and the stirring device 17 is driven to uniformly disperse and mix the raw garbage and the wood chips 18 with the stirring blade 16, and the heater 22 is energized to heat the treatment tank 1. In this way, the treatment tank 1 is kept at about 50 ° C. to 80 ° C., preferably 60 ° C.
It is heated and kept warm for a minute, and this heating kills and sterilizes insects so that harmful insects (maggots and the like) are not generated in the treatment tank 1. At the same time, the food waste is decomposed by the microorganisms that parasitize the wood chips 18, and the moisture and domestic wastewater generated by this decomposition process are changed into steam in the treatment tank 1 by heating. Next, the fan 20 is rotated to discharge the vapor in the processing tank 1 to the outside from the exhaust port 2 and take in fresh air from the intake port 19. The temperature of the mixture of the food waste and the wood strips 18 in the treatment tank 1 is 50 ° C. to 80 ° C. by the sensor provided in the treatment tank 1 after this.
Stirrer 17 so that the water content may be 60% to 70%.
The heater 22 and the fan 20 are controlled to decompose food waste.

In the case of the above-mentioned food waste processing apparatus, the heater 22 is provided in the processing tank 1.
By heating the above, the temperature of the mixture of the food waste and the wood chips 18 in the treatment tank 1 can be set to an optimum temperature for decomposing the food waste, and the decomposition treatment becomes efficient. Then, by utilizing this heat, the moisture generated in the decomposition process is converted into steam, and the fan 20 can be rotated to discharge the steam in the processing tank 1 from the exhaust port 2 to the outside. No longer need. Further, since the treatment tank 1 is heated and kept at 50 ° C. to 80 ° C., preferably 60 ° C. for about 10 minutes, insects and sterilization can be carried out so that harmful insects (maggots etc.) are not generated by this heat. Then, the temperature of the processing tank 1 is about 20 to 40 ° C.). Further, the rotation of the fan 20 allows fresh air to be taken into the processing tank 1 through the intake port 19, and it is possible to prevent degradation of decomposition processing and generation of bad odor due to insufficient air.

FIG. 2 shows another embodiment. At one end of the upper surface of the processing tank 1, a cylindrical portion 30 protruding upward in a cylindrical shape is formed.
Is provided and the upper end opening of the tubular portion 30 is the inlet 1.
It is formed as 2. At the other end of the upper surface of the processing tank 1, an exhaust tube portion 31 which is cylindrical and bent in an L-shape is provided to project, and an end opening of the exhaust tube portion 31 is formed as an exhaust port 2. A fan 20 is attached as an exhaust unit 4 to the exhaust pipe 31 at a substantially central portion thereof. In this embodiment, the charging port 12 is formed as an intake port 19.

FIG. 3 shows still another embodiment.
The treatment tank 1 is formed in a double structure by fitting the inner tank 1a into the outer tank 1b, and the exhaust passage portion 6 extending vertically between the side wall 5a of the inner tank 1a and the side wall 5b of the outer tank 1b. And the intake passage portion 7 are formed. A first exhaust port 8 is formed on one side wall 5a of the inner tank 1a by a plurality of through holes 35 communicating with the upper portion of the exhaust passage portion 6 and the inside of the inner tank 1a, and the outer surface of the side wall 5a is formed. A second exhaust port 9 is formed on the side wall 5b of the covering outer tank 1b by a plurality of through holes 37 communicating the lower part of the exhaust passage portion 6 to the outside. Fan 20 that is the exhaust means 4
Is attached inside the first exhaust port 8. Also the inner tank 1a
On the other side wall 5a, a first intake port 10 is formed by a plurality of through holes 36 that communicate with the upper part of the intake passage portion 7 and the inside of the processing tank 1, and the outer tank covering the outer surface of this side wall 5 is formed. A second intake port 11 is formed in the side wall 5b of 1b by a plurality of through holes 38 that communicate the lower part of the intake passage portion 7 to the outside. A heater 22 serving as a heating means 3 is provided between the exhaust passage portion 6, the intake passage portion 7, and the bottom surface of the inner tank 1a and the bottom surface of the outer tank 1b.
Is arranged in contact with the outer surface of the. A heat insulating material may be attached so as to cover the heater 22.

In this food waste processing apparatus, by rotating the fan 20, the steam in the inner tank 1a of the processing tank 1 is passed from the first exhaust port 8 into the exhaust passage portion 6 and discharged from the second exhaust port 9 to the outside. At the same time, fresh air is sucked from the second intake port 11 and taken into the inner tank 1a of the processing tank 1 from the first intake port 10 through the intake passage portion 7. Since the heater 22 is provided in the exhaust passage portion 6, the steam is heated by the heater 22 when passing through the exhaust passage portion 6, and it is possible to prevent the steam from being condensed to become water. Further, since the heater 22 is provided in the intake passage portion 7, the air sucked from the outside is heated by the heater 22 when passing through the inside of the intake passage portion 7, and the temperature in the inner tank 1a does not drop due to the intake of air. Therefore, it is possible to prevent degradation of the decomposition process. That is, the heater 2 that heats the processing tank 1
2 can be used to warm the steam discharged and the air taken in.

[0015]

As described above, according to the present invention, an exhaust port is formed in the processing tank in which food waste is decomposed and a heating means for applying heat to the processing tank is provided, and steam generated by heating is discharged from the exhaust port. Equipped with an exhaust means in the treatment tank, the wastewater generated by the decomposition processing of food waste can be converted to steam by heating and discharged from the exhaust port, eliminating the need to provide a drainage port in the processing tank and reliably discharging the wastewater. Is what you can do. Further, by heating the treatment tank, it is possible to kill the harmful insects generated around and inside the treatment tank by heat, so that the periphery and the inside do not become unsanitary.

Since the heating means is provided below the processing tank, the entire processing tank can be efficiently heated. Further, the treatment tank is formed in a double structure with an inner tank and an outer tank, an exhaust passage portion and an intake passage portion are provided between the side walls of the inner tank and the outer tank, and one side wall of the inner tank is connected to the inside of the inner tank. A first exhaust port communicating with the exhaust passage is formed, a second exhaust port is provided on one side wall of the outer tank for communicating the exhaust passage to the outside, and the other side wall of the inner tank is connected to the inside of the inner tank and the intake air. The first intake port communicating with the passage part is formed, and the second intake port for communicating the intake passage part to the outside is provided on the other side wall of the outer tank, and at least the heating means is provided in the intake passage part. By installing a heater inside the part, the air sucked from the outside will be warmed by the heater when passing through the intake passage part, and it is possible to prevent the temperature inside the processing tank from falling due to the intake of air, and the decomposition of raw garbage It can prevent a decrease in processing capacity It is.

[Brief description of drawings]

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

FIG. 2 is a sectional view showing another embodiment of the above.

FIG. 3 is a sectional view showing still another embodiment of the same.

FIG. 4 is a sectional view of a conventional example.

[Explanation of symbols]

 1 Treatment Tank 1a Inner Tank 1b Outer Tank 2 Exhaust Port 3 Heating Means 4 Exhaust Means 5 Side Wall 5a Side Wall 5b Side Wall 6 Exhaust Passage Portion 7 Intake Passage Portion 8 First Exhaust Port 9 Second Exhaust Port 10 First Intake Port 11 Second Intake

Continuation of the front page (51) Int.Cl. ⁶ Identification number In-house reference number FI Technology display location F24H 3/06 (72) Inventor Yukio Ozawa 1048 Daiji Kadoma, Kadoma-shi, Osaka Prefecture Matsushita Electric Works Co., Ltd. (72) Inventor Shigeyuki Yamaguchi 1048, Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Works Co., Ltd.

Claims (3)

[Claims] 1. An exhaust port is formed in a treatment tank in which food waste is decomposed and a heating means for applying heat to the treatment tank is provided.
An apparatus for treating food waste, characterized in that the treatment tank is equipped with an exhaust means for exhausting steam generated by heating from an exhaust port. 2. The food waste processing apparatus according to claim 1, wherein the heating means is provided below the processing tank. 3. A treatment tank is formed in a double structure with an inner tank and an outer tank, and an exhaust passage portion and an intake passage portion are provided between the side walls of the inner tank and the outer tank, and the inner tank is provided on one side wall of the inner tank. A first exhaust port that communicates with the inside of the tank and the exhaust passage is formed, and a second exhaust port that communicates the exhaust passage with the outside is provided on one side wall of the outer tank, and the inner tank is provided on the other side wall of the inner tank. A second intake port is formed on the other side wall of the outer tank to communicate the outside with the intake passage part, and a heating means is provided at least in the intake passage part. The food waste processing device according to claim 1 or 2, wherein