JP3453795B2 - Garbage processing machine - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a kitchen waste processing machine for processing kitchen garbage, that is, kitchen garbage, which is used for general households and businesses.

[0002]

2. Description of the Related Art Kitchen waste generated in the kitchen has conventionally been disposed of by using a disposer that is crushed and flowed as it is to sewage, a garbage processor that is crushed and dehydrated, and a heating means such as a microwave, a heater or steam. Was completely incinerated or dried using a garbage disposal machine for recovery.

[0003]

These conventional kitchen garbage processing machines have the following problems.

Disposers have a remarkably high BOD (biochemical oxygen demand) of treated effluent, which imposes a burden on the sewage treatment plant. Considering the current low sewerage penetration rate in Japan, it cannot be said to be a preferable treatment method.

[0005] In the garbage dewatering device, since the crushed kitchen waste collected is not treated, it is easily decomposed, which may cause an offensive odor or cause harmful insects and pathogenic bacteria.

[0006] The garbage treatment machine using heating means is detoxified, deodorized, and reduced in weight by incineration or drying, and there is no problem of the above-mentioned decay, but it is very difficult to install it indoors. The problem remains. Firstly, in the case of incineration treatment, the equipment must have a structure capable of withstanding high temperatures in order to perform this treatment, extremely high durability and safety are required, and there is a risk of being installed indoors. Secondly,
Even when it is dried without being incinerated, a large amount of steam is temporarily generated from the kitchen garbage along with odor during the heat treatment, and deodorizing treatment under such high humidity is more difficult than usual. This is because a foul odor may be generated.

As described above, the garbage disposal using the heating means is unlikely to be installed outdoors, and the garbage generated in the kitchen or the like has to be transported outdoors, even if it is installed indoors. Exhaust equipment becomes indispensable, resulting in large-scale equipment and equipment, resulting in high cost and extremely poor usability.

[0008] The present invention is intended to solve the problems of such a conventional garbage treatment machine, and to provide a convenient garbage treatment machine that can be installed indoors without generating a bad odor during processing. The purpose of 1. A second object is to provide a kitchen garbage processor with high reliability. Further, it is a third object to provide a kitchen waste processing machine that further reduces the odor of the treated waste and the odor in the waste container.

[0009]

[Means for Solving the Problems] A first means for solving the above problems is a waste container, a heating means for heating the waste or the waste container, and a heat exchange section for exchanging heat with exhaust gas and condensing water. And a garbage container that is provided downstream of the heat exchange section and that stores a condensed water and an exhaust gas that overflows and that is contractible and does not allow gas to pass therethrough.

The second means is a waste container, a heating means for heating the waste or the waste container, a heat exchange section for exchanging heat with the exhaust gas to condense moisture, and condensed water overflowing to the downstream side of the heat exchange section. The garbage disposal is provided with a storage container that stores exhaust gas and is impermeable to gas, and a drive device that expands and contracts the storage container.

[0011] Furthermore, the third means is a kitchen waste processing machine provided with a circulation path for circulating the air in the storage container and a deodorizing device in the circulation path.

[0012]

The odor generated when food waste is heated and dried is extremely unpleasant and intense. But,
The generated amount is extremely small when expressed in terms of volume, and is extremely small compared to the amount of expansion of the surrounding air during the drying of dust and the amount of generated water vapor. Therefore, if the moisture and the air during the drying can be stored, the food waste can be dried in a closed system, so that no odor is emitted outside.

Therefore, in the first means of the present invention, the generated steam is heat-exchanged, cooled and stored as water. In addition, the condensate storage container is elastic so that it does not allow odors to pass through, and the expanding air and odor are stored together with the condensate so that raw garbage can be processed without producing a bad odor outside. is there.

Further, since a little force is required for the storage container to expand and contract, the expansion slows down and the pressure of the entire system rises, and if a badly airtight place occurs, a foul odor may leak from it. obtain. Therefore, as in the case of the second means, the expansion and contraction are assisted by driving the motor or the like, so that the bad odor can be completely prevented.

Since the gas volatilized from the exhaust gas and the condensed water contains a large amount of malodorous components, there is a bad smell when the condensed water is thrown away after the waste treatment is completed or when the garbage is thrown away. Therefore, like the third means, the air in the storage container is circulated through the deodorizing device to deodorize, thereby suppressing the diffusion of the bad odor. In addition, since the odor concentration in the processing device can be reduced, the odor of the waste itself can be reduced.

[0016]

【Example】

(Embodiment 1) Hereinafter, a first embodiment of the present invention will be described with reference to FIG.
Will be described with reference to.

In FIG. 1, 1 is a garbage container, 2 is garbage,
3 is a rotary blade that stirs the garbage 2. 4 is a heat exchange section 6
It is an insulating container that prevents the diffusion of heat to the inside. An outer container 5 is cooled by being exposed to the outside air by a cooling fan 14.
Reference numeral 7 is a heater as a heating means, and here a corrosion-resistant sheathed heater is used. 8 is a hot air fan for sending heat to the garbage 2, and 9 is its motor. Reference numeral 10 is a radiant heat reflection plate of the heater 7, and 11 is a lid. 12 is a packing for preventing odors and the like from escaping from the gap between the lid and the main body, and 13 is a lock between the lid and the main body. Reference numeral 15 is a motor for rotating the rotary blade 3 with the drive shaft 16, and 17 is a storage container for storing the water 18 cooled and condensed by the heat exchange section 6, a part of which is made of a stretchable resin.
It is composed of 9. The bellows tube 19 is made of a gas impermeable polyester or fluororesin. 21 is a fixing plate for fixed connection with the bottom of the bellows tube 19, 24 is a drive motor,
The bellows tube 19 is expanded and contracted via the gear 23 and the rack 22. The drive motor 24, the gear 23, and the rack 22
And constitute the drive unit. 20 is a packing for preventing the odor from being released from the storage container 17. In this embodiment, the garbage container 1 is about 6 liters and can store about 1 kg of garbage. The volume of the storage container 17 is about 11 liters when it is fully inflated.

Next, the operation of this embodiment will be described. Approximately 1 kg of food waste 2, which is a mixture of fish, meat, vegetables, fruit skins and seasonings, is put into the garbage processing machine, the lid 11 is closed, and the cooling fan 14, the rotary blade 3 and the hot air fan 8 start operating. After that, the heater 7 is energized. Here, the temperature of the hot air is controlled to about 130 ° C. at the upper part of the dust container 1. When hot air is sent, the air in the waste container 1 expands and overflows from the container. Then, it is exhausted through the heat exchange section 6. While passing through the heat exchange section 6, the water is cooled and condensed by the cooling fan 14 and falls into the storage container 17. Exhaust gas containing odor also inflates the bellows tube bag 19 of the storage container 17 and stays there. The expansion of the air in the waste container 1 raises the temperature by about 10
The amount of exhaust that takes place in a minute is about 8.2 liters.
When the temperature in the waste container 1 rises and stabilizes, the amount of exhaust gas is only vaporized water vapor and odorous components, and is small. The drying is finished when 95% or more of the water content of the waste is dried, but the amount of water discharged during this period is about 750 g. When the drying is completed, the heating is stopped, and the cooling is started, the air in the waste container starts to contract, so that the air in the storage container 17 is drawn toward the waste container 1. In this embodiment, the heater 7
Before heating the food waste 2 in step 2, the drive motor 24 is operated in advance to fully inflate the bellows tube 19 and prepare for heated air and condensed water. After the processing is completed, the joint 20 and the fixing plate 21 of the storage container 17 are removed, and the storage container 17 is ejected to the drainage port of the sink and attached to the original place. Then, the bellows tube 19 is pushed back to the original contracted state by the drive motor 24 again to prepare for the next process.

In this way, it is possible to prevent the odor during processing from being emitted without attaching a special deodorizing device. Further, by assisting the expansion and contraction by driving the motor or the like, even if a place where airtightness is bad occurs, a bad smell does not leak from the place, and it is possible to prevent the bad smell from occurring completely.

(Embodiment 2) A circulation path 25 is provided in the head space portion of the storage container 17 of the embodiment 1, and the circulation path 25.
The deodorizing device 26 is provided in the embodiment shown in FIG. The odor in the head space portion of the storage container 17 is removed from a part of the storage container 17 through the circulation path 25 to remove the deodorizing device 2
It is sent to 6 for deodorization cleaning, and is returned to the storage container 17 from the other part of the storage container 17 through the circulation path 25 again. The deodorizing device 26 includes a suction fan or a pump and a deodorizing element. As the deodorizing element, a physical adsorbent such as activated carbon or a disposable one such as a chemical reaction agent, an ozone generator and a catalyst, an ultraviolet ray source and a catalyst, and a heating means are used. Any long-life catalyst deodorizing element such as a catalyst may be used. The circulation path 25 is made of stainless steel, fluorine resin, or the like that is impermeable to gas.

The difference between this operation and the first embodiment is that the heater 7
At the same time, the food waste 2 is heated to generate air and condensed water, and at the same time, the deodorizing device 26 is operated to suck and circulate the odor in the head space portion of the storage container 17. This circulation is continued until the waste treatment is completed. By this operation, the high-concentration malodorous component contained in the gas volatilized from the exhaust gas and the condensed water is deodorized by the deodorizing device 26.
It is possible to suppress the diffusion of the bad odor during the work such as discarding the condensed water after the waste treatment or discarding the waste by circulating it to deodorize it, and it is also possible to reduce the odor concentration in the processing equipment. The odor of the garbage itself can be reduced.

[0022]

As is apparent from the above embodiments, according to the present invention, the entire apparatus is a closed system, excess water in the dry exhaust gas is condensed in the heat exchange section, and the apparatus is expandable and contractible. By providing a storage container with an extremely low temperature, the expanded air, odor and water vapor in the waste container are cooled and condensed and fall into the storage container, and the exhaust gas containing the remaining odor inflates the storage container. Can be retained. Therefore,
Drying garbage reduces the amount of waste and suppresses spoilage so that the garbage can be stored and transported without discomfort. It can be dried without leaking.

Further, since a little force is required for the storage container to expand and contract, if the expansion slows down and the pressure of the entire system rises and a place with poor airtightness occurs, a foul odor may leak from there. However, by supporting expansion and contraction by driving a motor, etc., it is possible to fully prevent the generation of offensive odors.

Further, a deodorizing device is provided in a part of the storage container,
By circulating the odor in the headspace, it is possible to deodorize the high-concentration malodorous components contained in the gas that evaporates from the exhaust gas and the condensed water. Since it is possible to suppress the diffusion of malodors and to reduce the odor concentration in the processing device, it is possible to reduce the odor of the garbage itself.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of an embodiment of a kitchen garbage processor of the present invention.

FIG. 2 is a cross-sectional view of another embodiment of the garbage disposal of the present invention.

[Explanation of symbols]

1 garbage container 2 garbage 6 heat exchange section 7 heater 17 Storage container 19 bellows tube 24 drive motor 25 circulation routes 26 Deodorizer

Claims (3)

(57) [Claims] 1. A waste container, a heating means for heating the waste or the waste container, a heat exchange section for exchanging heat with the exhaust gas to condense water, and a condensed water overflow exhaust gas is stored downstream of the heat exchange section. A kitchen waste disposal machine equipped with a storage container that is contractible and impermeable to gas. 2. A waste container, a heating means for heating the waste or the waste container, a heat exchange section for exchanging heat with the exhaust gas to condense moisture, and a condensed water overflow exhaust gas is stored downstream of the heat exchange section. A garbage disposal machine provided with a storage container that is contractible and does not allow gas to permeate, and a drive device that expands and contracts the storage container. 3. The kitchen waste disposal machine according to claim 1, further comprising a circulation path for circulating the air in the storage container, and a deodorizing device in the circulation path.