JP2001314837A - Water absorbing material housing body for treating garbage and garbage treatment apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent such a phenomenon that water generated at the time of decomposition of garbage by bacterial cells and garbage are mixed in a stirring tank in which garbage is charged to become a sludge like state to reduce the load applied to rotary blades for stirring garbage. SOLUTION: In a garbage treatment apparatus for decomposing garbage into water and carbon dioxide by bacterial cells, a water absorbing material housing body 1, wherein a water absorbing material for absorbing moisture generated by the decomposition of garbage and discharging absorbed moisture when the humidity in a stirring tank 14 becomes less than a predetermined value and bacterial cells are housed in a rigid hollow sphere having a large number of through-holes formed to the wall surface thereof, is housed in the stirring tank 14 having a stirring means 20 for stirring garbage, an air supply means 30 for supplying air to bacterial cells and a suction pipe 50 sucking moisture and gas generated by the decomposition of garbage.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water-absorbing material housing for treating garbage, which absorbs water generated by decomposition of garbage by cells, and a garbage disposal apparatus using the same.

[0002]

2. Description of the Related Art Garbage disposal equipment decomposes garbage by the power of microorganisms without incinerating it. When this equipment is used, garbage is decomposed into only water and trace amounts of carbon dioxide. It does not cause problems such as pollution, and is therefore attracting attention from the viewpoint of environmental protection. In a stirring tank (garbage charging tank) of this type of garbage disposal apparatus, usually, a rotor blade driven by a motor for stirring a germ bed and a bacterial bed for mixing cells is provided. 50% or more of the garbage processed by such a garbage processing apparatus is said to be water, and a large amount of water is generated during the decomposition treatment by the bacterial cells.

[0003]

The large amount of water generated during the process of decomposing garbage causes the following adverse effects. (1) At the time of stirring, the bacterial bed and the decomposed garbage are mixed in the stirring tank to form sludge, which puts an excessive load on the stirring blade. (2) Increasing the load not only increases power consumption, but also imposes an increase in rotor blade strength and an increase in size of the motor, which leads to an increase in cost. (3) The generated water causes oxygen deficiency for the aerobic cells, thereby inhibiting the growth of the cells, and as a result, it takes a long time to decompose the garbage. This kind of garbage processing equipment usually has a suction pipe that sucks the moisture, gas, etc. generated in the stirring tank by the suction power of the blower, so the excess water is absorbed by controlling the rotation speed of the blower. However, if the number of rotations is too high, even the garbage and the bacteria bed are absorbed, so that the generated moisture cannot be effectively absorbed.

The invention according to claim 1 or 3 aims to absorb water generated at the time of decomposition of garbage by storing a water absorbing material in a water absorbing material housing.

The invention according to claim 2 or 3 aims to reduce the load on the stirring means by storing the bacteria bed in the water-absorbing material storage body. The invention according to claim 4 or 5 aims to prevent dormancy of bacterial cells due to drying by using a water absorbing material capable of releasing water.

According to a sixth aspect of the present invention, a rigid sphere is used as the hollow body to reduce the load on the stirring means and to prevent direct contact between the bacterial bed and the stirring means.

[0007]

As a first means, a water-absorbing material which absorbs water generated together with carbon dioxide due to decomposition of garbage by bacteria is accommodated in a hollow body having a hole in a wall surface.

[0008] As a second means, the first means is provided, and a bacterial bed for mixing the cells is accommodated in the hollow body.

As a third means, in a garbage disposal apparatus for decomposing garbage into water and carbon dioxide by cells, a stirring means for stirring garbage, an air supply means for supplying air to the cells, The water-absorbing material housing and the bacteria bed of the first means or the water-absorbing material housing of the second means were housed in a stirring tank having a suction pipe for sucking in moisture and gas generated by the decomposition of garbage.

[0010] As a fourth means, there is provided the first or second means, and the water-absorbing material is a material which releases absorbed moisture when the humidity around the water-absorbing material housing falls below a predetermined value. Choose from

As a fifth means, there is provided a third means, and the water-absorbing material is selected from materials which release absorbed moisture when the humidity in the stirring tank falls below a predetermined value. .

The sixth means has first, second, third, fourth or fifth means, and the hollow body is a rigid sphere having a large number of through-holes on a wall surface.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 and FIG.
4 shows a water-absorbing material housing 1 according to 4 or 6. The water-absorbing material housing 1 is composed of a hollow body 3 having a through-hole 2 on a wall surface, and houses a water-absorbing material and a bacterial bed in the hollow body.

Here, the bacterial bed is a culture bed of bacterial cells that decomposes garbage into water and carbon dioxide, and is made of a material, such as porous ceramics or wood chips, on which the bacterial cells can easily propagate. Select. The water-absorbing material is for absorbing the water generated when the garbage is decomposed, and the water-absorbing material does not stop at merely absorbing the water. In the case where the water content falls below, a material capable of releasing the absorbed water is preferable. For example, cloth, paper, synthetic resin, or the like that is not decomposed or hardly decomposed into bacterial cells is used.

It is preferable that both the water-absorbing material and the bacteria bed be housed in the hollow body 3 as described above. However, the present invention is not limited to this, and it is also possible to house only the water-absorbing material. In addition, the hollow body 3 has a large number of through holes 2 in the wall surface as described in claim 6.
Is preferably formed from a rigid sphere having As the material of the hollow body 3, a synthetic resin or a synthetic rubber is used. The dimensions are not particularly limited, but usually the outer diameter is 30 to 70 mm
About.

FIGS. 3 and 4 show a garbage disposal apparatus according to the third, fifth and sixth aspects of the present invention. Numeral 10 denotes a processing tank, and two support plates 13 are inwardly arranged from the middle in the vertical direction between the front and rear inner surfaces of an outer box 12 having an opening 11 with a lid on the upper surface of which a raw garbage can be charged as shown in FIG. And a lower portion of a stirring tank 14 having a U-shaped vertical section is fitted between these support plates, and both right and left end surfaces of the stirring tank are connected to left and right side walls 12a, 12a of the outer box 12.
b. The inside of the stirring tank is fixed to the inner surface to form a garbage decomposition chamber. Further, a burner 15 for heating the stirring tank 14 is provided at the bottom of the outer box 12.

Reference numeral 20 denotes a stirring means for stirring the garbage, and a rotating shaft 22 having rotating blades 21 and extending left and right in the stirring tank 14.
Are rotatably supported by the left and right side walls 12a and 12b of the outer box 12, and the rotation shaft 22 is rotatably driven by a motor 23 installed outside the stirring tank 14.

Numeral 30 denotes an air supply means for connecting one end of an air supply pipe 31 extending left and right in the stirring tank 14 to the right side wall 12b of the outer box 12.
Is projected outside through a through hole formed in the air inlet, and the projected end is formed in the air intake. Fresh air taken in from the inlet is supplied to the aerobic bacteria in the stirring tank 14.

Numeral 40 designates a watering means for adjusting humidity, and the stirring tank 1
One end of the water sprinkling pipe 41 extending left and right in the inside 4 is projected outside through a through hole formed in the right side wall 12b of the outer box 12, and the protruding end of the water sprinkling pipe 41 is connected to the water pipe through an electromagnetic valve 42 with a timer. (Not shown).

Reference numeral 50 denotes a suction pipe extending left and right in the stirring tank 14. One end of the suction pipe is projected outside through a through hole formed in the left side wall 12a of the outer box 12, and the projected end is connected to an exhaust pipe described later. It is connected to the road 60. This suction tube 50 is for sucking water and gas generated by decomposition of garbage,
This suction force is given by a suction / pressure feeding blower 63 described later.

Reference numeral 60 denotes an exhaust pipe which has a base end connected to the suction pipe 50, a distal end opened to the atmosphere as an exhaust port, and a filter 61, a dehumidifier 62, A suction / pressure feeding blower 63 and a deodorizing device 64 are provided. Hereinafter, these will be sequentially described. The filter 61 filters impurities such as dust sucked from the inside of the stirring tank 14 into the exhaust pipe 60 by the suction force of the suction / pressure feeding blower 63.

The dehumidifier 62 is for removing moisture in the gas, and operates when the humidity in the stirring tank 14 exceeds a predetermined value. The suction / pressure feeding blower 63 is for sucking the gas in the stirring tank 14 through the suction pipe 50, the filter 61 and the dehumidifier 62, and further for feeding the gas to the deodorizing device 64. The deodorizing device 64 is for deodorizing odors in the gas, and may be a known technology such as a direct combustion method for burning combustible substances in the odor at a high temperature and a catalytic deodorizing method using the activity of a catalyst. Adopt the one to which is applied.

In order to decompose garbage using the garbage disposal apparatus as described above, it is necessary to previously store a bacterial bed in the stirring tank 14, but in the present embodiment, the water absorbing material and the bacterial bed are used. Is stored. The number of the water-absorbing material housings 1 is not particularly limited, but the outer diameter is 66 mm.
In the case of using such a material, usually 100 or more pieces are stored. In the case where a hollow body 3 containing only a water-absorbing material is used as the water-absorbing material housing 1, a bacteria bed is housed in the stirring tank 14 together with the water-absorbing material housing 1.

Next, the operation of the present embodiment will be described.
In order to decompose the garbage, the garbage may be put into the stirring tank 14 and the lid may be closed. Then, the rotating blades 21 of the stirring means 20 pulverize the garbage while repeating the rotation and the stop. The inside of the agitation tank 14 is monitored via a sensor so as to maintain a temperature and humidity at which bacteria can easily be activated. The temperature is controlled by the burner 15, and when the humidity falls below a predetermined value, an electromagnetic valve 42 is provided. Is opened for a set time of the timer, and the water is spouted from the watering means 40 to be adjusted.

Most of the water generated by the decomposition of the garbage is absorbed by the water absorbing material of the water absorbing material housing 1 without being left as it is. Therefore, there is no possibility that fibers and the like in the garbage are mixed with water to form sludge. Therefore, even if a large amount of water is generated, the load applied to the rotor 21 does not increase, and the aerobic cells do not lose contact with air and do not become oxygen-deficient.

In particular, when the microbial bed is housed in the hollow body 3 and the hollow body 3 is formed of a sphere having such rigidity that it hardly deforms even when it comes into contact with the rotary wings 21, it is applied to the rotary wings 21. The load is further reduced and the bacterial bed is
1 and also do not come into direct contact with garbage, so that there is no abrasion.
In the case where it is stored in the housing 4, it is possible to use a material which is not easily used and is easily worn, such as cork.

The amount of water generated due to the decomposition of garbage is
Because it increases and decreases like a quadratic curve over time,
After a certain time after the amount of generated water has passed the peak, the inside of the stirring tank 14 may have a lower humidity than appropriate. If this is excessive, it may cause dormancy of the cells, but the water absorbing material has absorbed. It is possible to select a material from which water can be released at the time of such drying, and therefore, the inside of the stirring tank 14 is always kept in an appropriate environment for the activity of the bacterial cells. If the water absorbing material has such a property, the water spraying means 40 can be omitted. The garbage is intermittently stirred in the stirring tank 14 maintained at an appropriate temperature and humidity as described above, so that decomposition by bacteria is promoted, and the garbage is decomposed into moisture and a small amount of carbon dioxide in 8 to 24 hours. .

On the other hand, when the garbage is put into the stirring tank 14 and the lid is closed, the suction / pressure feeding blower 63 is operated, and a suction force is generated in the suction pipe 50. By this suction force, the gas in the stirring tank 14 is sucked into the exhaust pipe 60 together with foreign substances such as dust. The gas and the like sucked into the exhaust pipe pass through the filter 61 and the dehumidifying device 62, are further deodorized by the deodorizing device 64, and are then released to the atmosphere.

[0029]

According to the first or third aspect of the present invention, since a water-absorbing material housing capable of absorbing water generated during the decomposition treatment of garbage is provided, the fibers and the like in the garbage can be mixed with water in the stirring tank. The mixture does not become sludge and does not increase the load on the garbage stirring means. Also,
Since the load on the stirring means does not increase, the increase in power consumption can be suppressed, and the cost can be reduced without increasing the strength of the stirring means and increasing the size of a driving source such as a motor.

The invention according to claim 2 or 3 uses a water-absorbing material housing in which a bacterial bed is housed in a hollow body, so that the load imposed on the stirring means is smaller than when the bacterial bed is simply housed in a stirring tank. Reduction can be achieved. In the invention according to claim 4 or 5, since the water-absorbing material can release moisture when the humidity decreases to a predetermined value or less, it is possible to prevent dormancy of bacterial cells due to drying.

In the invention according to claim 6, since a rigid sphere is used as the hollow body, the load on the stirring means can be reduced, and the bacterial bed does not come into direct contact with the stirring means. What wears easily as a bacterial bed can be used.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a water-absorbent material housing for processing garbage according to the first embodiment of the present invention.

FIG. 2 is a side view of FIG. 1;

FIG. 3 is a schematic view of a garbage disposal apparatus according to the third embodiment.

FIG. 4 is a schematic sectional view of the stirring tank.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 water-absorbing material housing 2 through-hole 3 hollow body 14 stirring tank 20 stirring means 40 air supply means 50 suction pipe

Claims (6)

[Claims] 1. A water-absorbing material for treating garbage, characterized in that a water-absorbing material for absorbing water generated together with carbon dioxide due to decomposition of garbage by cells is accommodated in a hollow body having a through hole in a wall surface. Storage body. 2. The water-absorbent material housing for garbage disposal according to claim 1, wherein a bacterial bed for mixing said cells is housed in said hollow body. 3. A garbage disposal apparatus which decomposes garbage into water and carbon dioxide with cells, a stirring means for stirring the garbage, an air supply means for supplying air to the cells, The water-absorbing material container and the bacteria bed according to claim 1, wherein the water-absorbing material housing and the bacterial bed are provided in a stirring tank having a suction pipe for sucking generated moisture and gas.
Or a garbage disposal apparatus containing the water-absorbing material storage body according to claim 2. 4. The water-absorbing material is selected from materials that release absorbed moisture when the humidity around the water-absorbing material housing falls below a predetermined value. The water-absorbing material storage body as described. 5. The garbage according to claim 3, wherein said water-absorbing material is selected from materials that release absorbed moisture when the humidity in said stirring tank falls below a predetermined value. Processing equipment. 6. The hollow body according to claim 1, wherein the hollow body comprises a rigid sphere having a large number of through holes on a wall surface.
A garbage disposal apparatus according to claim 3 or claim 5.