JP2003245640A - Garbage processor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a stable garbage treatment without deteriorating the microbial decomposition capacity of a garbage in a garbage processor. <P>SOLUTION: A constitution is so made that the garbage processor is provided with a dry treatment section 13 where the garbage is dried by sending a fresh air thereto, a first blower 18 which supplies the fresh air to the section 13, a microbial decomposition treatment section 14 and a stirring section 21 which stirs the garbage in the section 13 and the section 14. This allows an energy to be saved by drying the garbage to remove a water content by an atmospheric heat caused by a ventilation, the deterioration of a decomposition performance can be prevented by suppressing the rise of a humidity in the section 14 and further, the generation of an offensive odor is simultaneously suppressed. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for treating food waste, which mainly reduces and reduces the amount of food waste produced at home.

[0002]

2. Description of the Related Art In a conventional garbage treatment apparatus for reducing or reducing the amount of raw garbage, as shown in FIG. 4, microorganisms containing a microbial carrier 1 such as sawdust serving as a habitat of microorganisms Decomposition tank 2, charged garbage 3 and microbial carrier 1
It has a rotary stirring rod 4 and a driving device 5 for mixing and stirring and, and the input garbage 3 is finally decomposed into carbon dioxide and water by microorganisms to reduce the volume of the garbage 3. A heating means 6 for maintaining an appropriate temperature in the microbial decomposition tank 2, a blower 7 for supplying oxygen (air),
A so-called bio-based food waste treatment device that includes control means (not shown) that controls them and decomposes and reduces the amount of food waste by the action of microorganisms, and a heating device 8 and a blower device 9 as shown in FIG. The raw garbage 3 is put in a heating container 12 equipped with a stirring blade 11 which is rotated by a driving device 10 at the bottom, and hot air is applied to the garbage 3 while stirring the raw garbage 3 with the stirring blade 11 to dry the garbage. A so-called heat-drying type food waste processing device is generally known.

[0003]

However, in such a conventional food waste disposal device, in the case of the bio-based food waste disposal device, since the microorganisms decompose the food waste,
It is necessary to create an environment for inhabiting this microorganism and maintaining its activation. Therefore, one needs a place where many microorganisms can live and multiply. As the material, a microbial carrier such as a wood chip chip such as sawdust, a porous plastic chip, or the like is used.

However, when these are used for a long time,
The microbial carrier is abraded by frictional force due to agitation, and the microbial carrier is miniaturized, so that air permeability between the microbial carriers is deteriorated, and it becomes impossible to supply oxygen, which is the second condition required for microbial decomposition. Therefore, replacement with a new microbial carrier is indispensable.

As the third habitat for microorganisms,
It requires moderate humidity, and microorganisms cannot survive in the excessively dry state, and the ability to decompose is reduced even in the high-moisture state. Then, the introduced microorganism carriers also play a role of appropriately adjusting the humidity in the treatment tank.

As described above, in the bio-based food waste processing apparatus,
Since this is a volume reduction method that uses a natural phenomenon of being decomposed by microorganisms, it takes a considerable amount of time to reduce the volume, and when a material with a high water content is contained, the water content cannot be adjusted even with such a microbial carrier and the microorganisms work well. In some cases, it cannot be decomposed and a foul-smelling substance is generated. For that reason, in general, there is a problem that the microbial carrier is regularly replaced and the amount of the input material is limited, which deteriorates usability.

On the other hand, in the case of the heat-drying type food waste processing apparatus, the time required for the weight reduction is much larger than that of the bio-type because the water content of the food waste is evaporated by using a heating means such as a heater or a blower. Can be shortened to, but much energy is consumed accordingly. In other words, since basically the water content of food waste is only evaporated, it is not possible to reduce more than a predetermined amount (water content of garbage), and there is a limit to the weight reduction. There was a problem that many were needed.

The present invention solves the above-mentioned problems of the prior art, does not require too much time for weight reduction, has no inconvenience such as frequent replacement of microbial carriers, and is an energy source for evaporating water. The purpose is to provide an easy-to-use food waste treatment device that does not require much.

[0009]

In order to solve the above-mentioned problems of the prior art, a raw garbage processing apparatus of the present invention supplies a drying processing unit for drying raw garbage by blowing the outside air and an outside air to the drying processing unit. The first blower, the microbial decomposition processing unit, and the stirring unit that stirs the garbage in the drying processing unit and the microbial decomposition processing unit.

As a result, it does not require too much time for weight reduction, has no inconvenience such as frequent replacement of the microorganism carrier, and does not require much energy for evaporating water, and is easy to use. A processing device can be provided.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION The invention according to claim 1 is a drying processing section for drying raw garbage by blowing outside air, a first blower for supplying outside air to the drying processing section, and a microbial decomposition processing section. And a stirring unit that stirs the garbage in the drying processing unit and the microbial decomposition processing unit.

[0012] Therefore, it is possible to prevent deterioration of the decomposition performance by drying some of the water content of the garbage by the atmospheric heat generated by blowing air to save energy and to suppress the increase in humidity of the microbial decomposition treatment section. At the same time, the generation of foul odor can be suppressed.

According to a second aspect of the present invention, a drying processing section for drying raw garbage by blowing the outside air, a first blower for supplying the outside air to the drying processing section, a microbial decomposition processing section, and the drying processing. The first stirring unit that stirs the raw garbage in the unit and the second stirring unit that stirs the raw garbage in the microbial decomposition processing unit are provided.

Therefore, energy can be saved by drying a certain amount of the water content of the garbage by the atmospheric heat generated by the air blow, and the deterioration of the decomposition performance can be prevented by suppressing the increase in the humidity of the microbial decomposition treatment section. At the same time, the generation of foul odor can be suppressed.

The invention as defined in claim 3 is particularly defined by claim 1.
Alternatively, the outside air supplied to the drying treatment unit described in 2 is configured to pass through the microbial decomposition treatment unit.

Therefore, in the drying processing section, the moisture of the raw garbage is evaporated and the humidity of the outside air blown rises. This high-humidity air passes through the microbial decomposition processing section and supplies oxygen necessary for the microorganisms. Therefore, even if the outside air is extremely dry, such as the input of dry raw garbage with a low moisture content, winter, etc., it is possible to secure the water content of the microbial decomposition processing section, and to improve the decomposition performance in the microbial decomposition processing section. It can be maintained.

The invention as defined in claim 4 is particularly characterized by claim 1.
Alternatively, in addition to the invention described in 2, the outside air provided with the deodorizing section and supplied to the drying processing section, after passing through the microbial decomposition processing section,
It was configured to pass through the deodorizing section.

Therefore, since all the air exhausted from the garbage processing device is deodorized, it is possible to completely prevent the discomfort caused by the generation of the offensive odor.

The invention as defined in claim 5 is particularly defined by claim 1.
Alternatively, the second air blower that allows the outside air supplied to the drying treatment unit described in 2 to pass through the microbial decomposition treatment unit is provided.

Therefore, in the drying processing section, the moisture of the raw garbage is evaporated and the humidity of the blown outside air is increased. This high-humidity air passes through the microbial decomposition treatment section and supplies oxygen required for the microorganisms by the second blower. Therefore, even if the outside air is extremely dry, such as the input of dry raw garbage with a low moisture content, winter, etc., it is possible to secure the water content of the microbial decomposition processing section, and to improve the decomposition performance in the microbial decomposition processing section. It can be maintained.

The invention described in claim 6 is particularly characterized by claim 5.
In addition to the invention described in (1) above, a deodorizing blower is provided which has a deodorizing section and allows the outside air that has passed through the microbial decomposition processing section to pass through the deodorizing section.

Therefore, since all the air before being discharged from the garbage processing device passes through the deodorizing section by the deodorization blower, all the air before being discharged from the garbage processing device can be deodorized, and a completely offensive odor is generated. It is possible to prevent discomfort caused by.

The invention as defined in claim 7 is particularly defined by claim 1.
The drying treatment unit according to any one of items 1 to 6 is provided with a circulating blower that circulates air.

By applying the air blown by the circulation blower to the garbage, the drying of the garbage can be promoted and the processing time can be shortened.

Further, it is possible to reduce the air blown to the drying section, improve the deodorizing performance, and make the apparatus compact.

The invention as defined in claim 8 is particularly defined by claim 1.
The heat exchanger part for exchanging heat between the outside air that has passed through the microbial decomposition treatment part according to any one of 1 to 7 and the outside air supplied to the drying treatment part.

Therefore, the air supplied to the drying processing section can be heated by the air that is heated to a high temperature due to the heat generated during the microbial decomposition, and the drying processing time can be shortened. Further, even if the outside air is at a low temperature, the garbage can be dried. It can be completed in a short time.

The invention as defined in claim 9 is particularly characterized by claim 1.
9. A transport for transporting raw garbage from the drying treatment unit to the microbial decomposition treatment unit by the output of the moisture sensor, which has a moisture sensor for detecting the moisture content of the raw dust in the drying treatment unit according to any one of 8 to 8 It is configured to include means.

Therefore, the water content of the garbage introduced into the microbial decomposition section becomes constant, and the water content in the microbial decomposition section can be kept optimal for the activity of microorganisms, and the decomposition performance in the microbial decomposition section deteriorates. It is possible to prevent that.

[0030]

(Embodiment 1) A first embodiment of the present invention will be described below with reference to the block diagram of FIG. In the figure, 13 is a drying processing section, 14 is a microbial decomposition processing section, and 15 is a deodorizing section. The drying processing section 13 and the microbial decomposition processing section 14 are adjacent to each other.

The drying processing section 13 includes a garbage input port 16 and
Garbage discharge outlet 17, first blower 18, outside air inlet 1
9, an auxiliary heater 20 as a heating device provided in the vicinity of the outside air inlet 19, an agitator 21, and operation control means (not shown) for these, and the like. The stirring unit 21 has a configuration in which the stirring motor 22, the blades 23 provided in the drying processing unit 13 and the blades 24 provided in the microbial decomposition processing unit 14 are connected by a stirring shaft 25 and integrally rotated. , The first and second stirring units are separately provided,
Alternatively, the stirring shaft 25 may be individually configured and connected by a belt, a gear, or the like.

The microbial decomposition processing section 14 is provided with the garbage discharge port 1.
7, the second blower 26 at the outlet and the deodorizing unit 15
The exhaust port 27 opened to the inside and the blade 2 of the stirring section 21 inside
4 and their operation control means (not shown) and the like.

The deodorizing section 15 has a passage outside from the exhaust port 27 through the heater 28, the deodorizing catalyst 29, and the deodorizing blower 30.

Further, the microbial decomposition processing section 14 is provided with a residual outlet 31 for discharging the residual substances after the raw garbage is decomposed by microorganisms, and the residual outlet 28 is a fertilizer for temporarily holding the residual substances. It is connected to the reservoir 32.

Further, in a normal state, the temperature inside the microbial decomposition processing section 14 becomes high due to the decomposition heat of the microorganisms and the temperature control is not required, but a heater (not shown) and a temperature control means for heating to assist the initial stage of microbial decomposition etc. May be provided.

Then, in such a configuration, first,
The garbage 3 is introduced from the garbage introduction port 16 of the drying processing unit 13 and is stirred by the blades 23 of the stirring unit 21, while the air from the outside air inlet 19 promotes evaporation of water. When the humidity of the outside air is very high, the auxiliary heater 20 is energized. After the water content of the garbage has evaporated to about 50%,
It is scraped up by the rotation of 3, and moved from the garbage discharge port 17 to the microbial decomposition processing section 14. Microbial decomposition processing section 1
The garbage in 4 is the microorganism carrier 1 by stirring the blades 24.
It is mixed with and decomposed by microorganisms to become carbon dioxide and water. Then, the residual substance that cannot be completely decomposed into raw garbage moves from the residual outlet 31 to the fertilizer reservoir 32 to temporarily hold the residual substance and take it out as appropriate and use it as fertilizer.

When the introduced garbage 3 or the microbial decomposition processing section 14 has a strong odor, the deodorizing blower 30 is operated.
The odorous air of the drying processing section 13 or the microbial decomposition processing section 14 is heated by the heater 28 through the garbage discharge port 17 and the exhaust port 27 to reach a high temperature, and the odorous components are decomposed by the deodorization catalyst 29 to deodorize. The air is discharged from the blower 30 to the outside.

As described above, the drying processing section 13 and the microbial decomposition processing section 14 are arranged adjacent to each other, and a certain amount of water in the garbage is dried by the atmospheric heat generated by the blown air to save energy.

That is, the heat of the electric heater has conventionally been used for the heat of evaporation of water from the garbage, but air is passed through the garbage and the heat of evaporation is taken from the air to be vaporized. For this reason, the temperature of raw garbage and air decreases, and the amount of evaporation decreases. On the other hand, in the microbial decomposition processing unit 14, heat is generated and the temperature becomes high when microorganisms decompose the garbage. Therefore, by bringing the drying treatment section 13 and the microorganism decomposition treatment section 14 into close contact with each other, the drying treatment section 13 can be heated by the heat of decomposition of the microorganisms and used to evaporate the water content of garbage. As described above, most of the energy during the drying process of the garbage is the atmospheric heat and the heat of microbial decomposition, and only the electricity of the blower for blowing air is used, and the power consumption can be greatly reduced.

Further, it is possible to suppress an increase in the humidity of the microbial decomposition portion 14 and prevent deterioration of the decomposition performance,
At the same time, the generation of foul odor can be suppressed.

That is, the water content of raw garbage is typically 8
It is stable at about 0%, but when it remains mixed with liquid soup, the water content may be remarkably high. When a high-moisture material is contained, microorganisms do not work well and cannot be decomposed, and a malodorous substance is generated. For that reason, generally, the microbial carrier is regularly replaced or the input is limited. However, in the embodiment, after the moisture is removed to some extent in advance by the drying treatment unit 13, the microorganisms are removed. By introducing it into the decomposition processing unit 14, the garbage entering the microbial decomposition processing unit 14 always enters with a constant water content regardless of the state, so that a good environment for microorganisms can be realized. The decomposition treatment by microorganisms can always be performed in a stable state. This eliminates the generation of foul odors.

(Embodiment 2) Next, a second embodiment of the present invention will be described with reference to the configuration diagram of FIG. FIG. 2 shows the overall configuration of a food waste processing device according to a second embodiment of the present invention.

The difference from the first embodiment is that the drying processing unit 1
A circulating fan 33 for circulating air is provided in the air conditioning unit 3, and the air in the drying processing unit 13 is circulated by the circulating fan 33. By applying the air blown by the circulation fan 33 to the garbage, the drying of the garbage can be promoted and the processing time can be shortened. That is, the moisture of raw garbage is evaporated by the air entering from the outside air inlet 19, but the vapor pressure of the air is increased and the evaporation rate is slowed down by the amount of the evaporated moisture staying around the raw garbage. Therefore, the air blown by the circulation blower 33 is applied to the garbage to scavenge the water vapor to lower the water vapor pressure of the air surrounding the garbage and accelerate the evaporation of water.

Further, the air blown to the drying processing section 13 can be reduced, the deodorizing performance can be improved, and the equipment can be made compact.

In addition, after the outside air is introduced into the drying treatment section 13 by the second blower 26 and discharged through the microbial decomposition treatment section 14, the moisture of the raw garbage is evaporated and blown in the drying treatment section 13. The humidity of the outside air rises. This high-humidity air passes through the microbial decomposition processing section 14 and supplies oxygen necessary for the microorganisms, and then discharges it to the outside. Therefore, it is possible to ensure the water content of the microbial decomposition processing unit 14 even when the dry garbage having a low water content is input or the outside air is extremely dry such as in the winter season. The decomposition performance can be maintained.

In addition, after the outside air is introduced into the drying processing section 13 by suction of the deodorizing blower 30, it passes through the microbial decomposition processing section 14, is further guided to the deodorizing section 15, and is then discharged. Since all the air that comes out of the room is deodorized, it is possible to completely prevent the discomfort caused by the generation of an offensive odor.

Further, the first blower 18 for introducing the outside air into the drying processing section 13 and then discharging it, or the second blower 26 for introducing the outside air into the drying processing section 13 and discharging it through the microbial decomposition processing section 14, and the outside air. A deodorizing blower 30 is provided, which is introduced into the drying processing section 14, passes through the microbial decomposition processing section 14, further leads to the deodorizing section 15, and is then discharged. As a result, it is possible to switch the flow path of the outside air according to the level of the smell of raw garbage, which suppresses the generation of the smell to the outside, and enables short-time processing and energy saving. That is, when the odor of vegetables, fruits, etc. input to the drying processing unit 13 is relatively small, a large amount of air is directly discharged by the first blower 18 or the second blower 26 to perform the drying treatment in a short time. To complete.

When the garbage has a strong odor, such as rotten food, the deodorant blower 30 deodorizes all the air discharged from the garbage processor, so that the unpleasant odor caused by the offensive odor can be completely prevented. .

(Third Embodiment) Next, a third embodiment of the present invention will be described with reference to the block diagram of FIG. FIG. 3 shows the overall configuration of a food waste processing device according to a third embodiment of the present invention.

The difference from the first embodiment is that the second blower 26, which is an air outlet for discharging from the microbial decomposition processing section 14, is used.
And the outside air inlet 19 which is an air inlet for supplying to the drying processing unit 13 are configured to form a heat exchanger unit 34.

That is, by constructing the heat exchanger section 34 for exchanging heat between the air discharged from the microbial decomposition processing section 14 and the air supplied to the drying processing section 13, the microbial decomposition processing section 14 at the time of microbial decomposition is constituted. It is possible to heat the air supplied to the drying processing unit 13 by using the air that becomes high temperature due to heat generation and is discharged, so that the drying processing time can be shortened, and the drying processing of the garbage can be completed in a short time even when the outside air has a low temperature.

Further, a moisture sensor 18 for detecting the moisture content of the garbage in the drying processing section 13 is provided.
Output from the drying processing unit 13 to the microbial decomposition processing unit 14
Due to the configuration having the transporting means for transporting the raw garbage, the water content of the raw garbage introduced into the microbial decomposition processing section 14 becomes constant, and the water content in the microbial decomposition section 14 can be kept optimal for the activity of the microorganism. In addition, it is possible to prevent deterioration of the decomposition performance in the microbial decomposition part, and it is possible to carry out the decomposition treatment by microorganisms in a stable state at all times and to eliminate the generation of foul odors.

[0053]

As described above, according to the invention described in claims 1 to 9, energy can be saved by drying a certain amount of water content of raw garbage by atmospheric heat by blowing air, and humidity of the microbial decomposition treatment section can be improved. It is possible to provide a garbage processing device that can prevent degradation of decomposition performance and suppress generation of foul odor at the same time by suppressing the increase in the amount of odor.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a garbage disposal according to a first embodiment of the present invention.

FIG. 2 is a configuration diagram of a garbage disposal according to a second embodiment of the present invention.

FIG. 3 is a block diagram of a garbage disposal according to a third embodiment of the present invention.

FIG. 4 is a vertical sectional view of a conventional garbage processing machine.

FIG. 5 is a vertical sectional view of another conventional food waste processing machine.

[Explanation of symbols]

13 Drying processing section 14 Microbial decomposition section 15 Deodorizing part 18 First Blower 21 Stirrer 26 Second blower 30 deodorant blower 33 Circulation blower 34 Heat Exchanger Section 35 Moisture sensor

Continued front page    (72) Inventor Tsuyoshi Hatano             1006 Kadoma, Kadoma-shi, Osaka Matsushita Electric             Sangyo Co., Ltd. (72) Inventor Masanobu Kawai             1006 Kadoma, Kadoma-shi, Osaka Matsushita Electric             Sangyo Co., Ltd. (72) Inventor Hiroshi Nishida             1006 Kadoma, Kadoma-shi, Osaka Matsushita Electric             Sangyo Co., Ltd. F term (reference) 3L113 AA07 AB06 AC08 AC58 AC87                       CA02 DA02 DA10                 4D004 AA03 CA15 CA19 CA22 CA42                       CA48 CB04 CB28 CB31 CB32                       CB44 CB45 CC08 CC09 DA01                       DA02 DA09                 4D048 AA22 CC32 CC38

Claims (9)

[Claims] 1. A drying processing unit for drying raw garbage by blowing outside air, a first blower for supplying outside air to the drying processing unit, a microbial decomposition processing unit, and inside the drying processing unit and inside the microbial decomposition processing unit. An apparatus for treating food waste, which is provided with a stirrer for stirring the food waste. 2. A drying processing unit for drying raw garbage by blowing the outside air, a first blower for supplying the outside air to the drying processing unit, a microbial decomposition treatment unit, and stirring the raw garbage in the drying processing unit. A raw garbage processing device comprising a first agitating section and a second agitating section for agitating the raw garbage in the microbial decomposition processing section. 3. The garbage treatment device according to claim 1, wherein the outside air supplied to the drying processing section is configured to pass through the microbial decomposition processing section. 4. The garbage processing device according to claim 1, further comprising a deodorizing unit, wherein the outside air supplied to the drying processing unit passes through the microbial decomposition processing unit and then passes through the deodorizing unit. 5. A second blower for allowing the outside air supplied to the drying processing section to pass through the microbial decomposition processing section.
Alternatively, the garbage disposal according to item 2. 6. The garbage processing device according to claim 5, further comprising a deodorizing blower that has a deodorizing section and that allows the outside air that has passed through the microbial decomposition processing section to pass through the deodorizing section. 7. The garbage treatment device according to claim 1, wherein the drying treatment section is provided with a circulation blower for circulating air. 8. The raw garbage treatment according to claim 1, further comprising a heat exchanger section for exchanging heat between the outside air that has passed through the microbial decomposition processing section and the outside air that is supplied to the drying processing section. apparatus. 9. A moisture sensor for detecting the moisture content of raw garbage in the drying processing section, and a transporting means for transporting the raw garbage from the drying processing section to the microbial decomposition processing section according to the output of the moisture sensor. 9. The garbage treatment device according to any one of 1 to 8.