JP2000107733A - Apparatus for waste disposal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent treating efficiency from decreasing due to temperature- falling in a treating vessel by installing such a deodorizing passage that malodorous exhaust gases can be returned through around a motor as an agitating device. SOLUTION: An exhaust fan 23 is equipped on an upper surface of a tank 22 storing treating water 14 so as to exhaust gases generated out of the surface of the treating water in the tank 22, and a deodorizing passage 24 connected with an intake 19 and a suction duct 21 is so connected with the lower course of a stream from the exhaust fan 23 through a panel heater 18 that malodorous gases generated in a treating vessel 3 can be exhausted into the treating water 14 through an exhaust duct 15 by a exhaust fan 16. The gases which have been deodorized in the course of floating in the treating water 14 are returned again to the treating vessel 3 through the deodorizing passage 24 and the suction duct 21 by the exhaust fan 23. As a result, the falling of the temperature in the treating vessel 3 is prevented by circulation of the exhaust gases while the generation of the malodorous gases is prevented, which is caused by exhausting of the exhaust gases to the outside.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waste treatment apparatus for treating waste such as paper, dust, cinders, rubber gloves and the like using microorganisms.

[0002]

2. Description of the Related Art In a waste treatment apparatus for decomposing waste such as garbage and rubber gloves by using microorganisms, for example, as shown in Japanese Patent Application Laid-Open No. H8-243531, the waste is decomposed. A stirring device 6 including a stirring shaft 6b and a stirring blade 6a is provided in the fermenter 3 to be treated, and the waste and the microorganism for treatment are stirred by the stirring device. And
During the treatment of the waste, a bad odor is generated.
A deodorizing passage 12 provided with the deodorizing passage 3 is provided, and exhaust gas deodorized by the deodorizing passage is returned to the fermenter 3 again so that odor is not discharged to the outside as much as possible. On the other hand, in the apparatus having the above configuration, deodorization is performed using a catalyst.However, depending on the type of waste, there is a case where deodorization is difficult using a catalyst. Therefore, when the exhaust gas after deodorization is returned to the inside of the processing tank, the inside of the processing tank is cooled and the processing efficiency is reduced.

[0003]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to recirculate exhaust gas generated in a treatment tank through a deodorizing device using treated water, and to prevent a decrease in treatment efficiency due to a decrease in temperature in the treatment tank. It is assumed that.

[0004]

According to the present invention, waste and microorganisms are charged into a treatment tank, and the waste and microorganisms are stirred by stirring means provided in the treatment tank. While decomposing the exhaust gas of the treatment tank, circulating the exhaust gas again in the treatment tank after deodorizing with the treatment water, and mounting a heater on the outer wall surface of the treatment tank to heat the treatment tank to a predetermined temperature. It is provided with a deodorizing passage for returning exhaust gas to the processing tank through the periphery of the heater. Also, the present invention, the waste and microorganisms are charged into the treatment tank, the waste and microorganisms are stirred by stirring means provided in the treatment tank,
Waste water is decomposed by these microorganisms, and the exhaust gas from the treatment tank is deodorized by treated water, circulated again into the treatment tank, and a heater is installed on the outer wall surface of the treatment tank to heat the treatment tank to a predetermined temperature. , A deodorizing passage for returning exhaust gas after deodorization to the treatment tank via the periphery of the motor of the stirring means is provided.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment according to the present invention will be described first with reference to FIG. 1. Reference numeral 1 denotes an apparatus main body, which has an opening 2 on one side and a U-shaped bottom. A processing tank 3 having a rectangular cylindrical shape is provided, and a storage chamber 4 is formed on the other side. Reference numeral 5 denotes a stirring means mounted in the processing tank 3, a rotating shaft 7 having both ends supported in a substantially horizontal direction by a pair of bearings 6, 6, and a stirring blade 8 fixed around the rotating shaft.
And the belt 9, the pulley 1
0 that drives the rotary shaft 7 to rotate through
1 and the main configuration. Reference numeral 12 denotes an exhaust hole opened on the upper side wall of the processing tank 3. An exhaust hole 13 opened at the tip is connected to an exhaust duct 15 opened in the water of the deodorized treated water 14, and the exhaust duct 13 is located in the middle of this exhaust duct. , An exhaust fan 16 is mounted thereon, and these constitute an exhaust passage.
The treated water 14 is filled with an effective microbial complex obtained by blending other bacteria mainly for aerobic Bacillus subtilis (Bacillus sp.) For deodorization. As the odorous substances in the exhaust, ammonia, methyl mercaptan, hydrogen sulfide, methyl sulfide, methyl disulfide, trimethylamine, acetaldehyde, styrene,
Propionic acid, normal butyric acid, normal valeric acid, isovaleric acid, toluene, xylene, methyl isobutyl ketone,
Ethyl acetate, isobutanol, propionaldehyde,
There are isovaleraldehyde, isobutyraldehyde, normal valeraldehyde, normal butyraldehyde and the like, and a bacterium that decomposes these is used. Further, a panel heater 18 in which a heater 17 such as a sheathed heater is embedded is fixed to the outer bottom wall surface of the processing tank 3, and the temperature in the processing tank 3 is detected by a temperature sensor such as a well-known thermistor (not shown). The energization is controlled, and the microorganisms for waste treatment, which are mainly aerobic Bacillus subtilis (Bacillus subtilis), are blended with yeast and other bacteria according to the type of waste, and grow. It is configured to control heating to an easy temperature. 19
Is an intake hole drilled in the upper side surface of the outer case 20 of the main body 1 and communicates with the bottom of the processing tank 3 through an intake duct 21 so that the exhaust fan 16 rotates and the inside of the processing tank 3 has a negative pressure. , The outside air is supplied to the processing tank 3 through the intake duct 21.
It is configured to be sucked into. On the other hand, the treated water 14
An exhaust fan 23 for exhausting exhaust gas generated from the treated water surface of the tank is provided on the upper surface of the tank 22 for storing the air, and the intake air is passed downstream of the exhaust fan via the periphery of the panel heater 18. Hole 19 and intake duct 2
A deodorizing passage 24 communicating between the two is connected. Thereby, the odor generated in the processing tank 3 is reduced by the exhaust fan 16.
Is discharged into the treated water 14 through the exhaust duct 15, is deodorized while floating in the treated water, and is returned again into the treatment tank 3 through the deodorizing passage 24 and the intake duct 21 by the exhaust fan 23. is there. Then, even though it is heated by the panel heater 18 while passing through the deodorizing passage 24 and is cooled by contact with the treated water 14, it is heated when returned to the treatment tank 3, and the microorganisms are cooled by cooling in the treatment tank. It is intended to prevent a decrease in activity. FIG. 2 shows another embodiment of the present invention in which the panel heater 18 portion 25 of the deodorizing passage 24 is formed so as to conform to the surface shape of the panel heater.
Thus, the cooled exhaust gas can be efficiently heated. Incidentally, even in the configuration shown in FIG.
When the temperature is lower than the internal temperature, a heat exchanger such as a radiation fin may be provided on the surface of the panel heater 18. FIG. 3 shows still another embodiment of the present invention, in which the deodorizing passage 24 is configured to return to the inside of the processing tank 3 through the periphery of the motor 11 and the panel heater 18, and is cooled by the processing water 14. The motor 11 can be efficiently cooled using the exhaust gas thus exhausted, and the durability of the motor 11 can be prevented from lowering due to overheating. Thus, when treating the waste, first, the waste to be treated and the wood chips called a hole chip or a biochip inhabiting the microorganism for treatment are introduced into the treatment tank 3 from the input port 2. The temperature in the treatment tank 3 is controlled by controlling the energization of the heater 17 to a temperature suitable for the growth and propagation of microorganisms (for example, 35 to 45 ° C. for garbage, and 50 ° C. for rubber gloves).
While controlling the power supply to the motor 11 while controlling the temperature to about 70 ° C., the stirring blade 8 is rotated to mix the waste and the microorganism, and at the same time, the odor generated from the processing tank 3 is rotated by rotating the exhaust fans 16 and 23. Is deodorized by the treated water 14, and then returned to the processing tank 3 while being heated through the deodorizing passage 24, thereby preventing generation of offensive odor due to discharge of odor to the outside,
Deodorization efficiency can be improved by circulation of odor. In addition, the inside of the processing tank 3 becomes a negative pressure due to the rotation of the exhaust fans 16 and 23, whereby fresh outside air is sucked into the processing tank 3 through the intake hole 19 and the intake duct 21, and is necessary for the growth of microorganisms. Supply the perfect air (oxygen).

[0006]

According to the constitution of the present invention, after the exhaust gas generated in the processing tank is deodorized by the processing water, the exhaust gas is heated by using the heater for heating the processing tank through the deodorizing passage and circulated in the processing tank. Thus, it is possible to prevent the generation of offensive odor due to the discharge of the exhaust gas to the outside, and at the same time, to prevent the temperature of the processing tank from lowering due to the circulation of the exhaust gas, thereby preventing the waste treatment efficiency from lowering due to the temperature decrease. Also, according to the configuration of the present invention,
By returning the exhaust gas after deodorization with the treated water to the treatment tank through the periphery of the motor of the stirring means for stirring and mixing the waste and the microorganisms through the deodorizing passage, the cooling of the motor using the exhaust gas and the heating of the exhaust gas are used. By doing so, it is possible to improve the durability performance of the motor and prevent the temperature inside the processing tank from dropping due to the circulation of exhaust gas.

[Brief description of the drawings]

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

FIG. 2 is a side longitudinal sectional view showing another embodiment.

FIG. 3 is a front vertical sectional view showing still another embodiment.

[Explanation of symbols]

 3 treatment tank 5 stirring means 11 motor 14 treated water 17 heater 24 deodorizing passage

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor: Hisashi Moriwaki 3-201, Minamiyoshikata, Tottori-shi, Tottori Tottori Sanyo Electric Co., Ltd. (72) Noriaki Hirano 3-201, Minamiyoshikata, Tottori-shi, Tottori Sanyo Tottori (72) Inventor Teruo Okuda 3-201 Minamiyoshikata, Tottori City, Tottori Prefecture F-term (reference) 4D002 AA03 AA13 AA14 AA32 AC10 BA17 DA59 4D004 AA01 AA03 AA11 CA19 CA22 CB04 CB28 CB32 CB44 CC07 DA02 DA06

Claims (2)

[Claims] Claims 1. A waste and microorganisms are charged into a treatment tank,
The waste and the microorganism are stirred by the stirring means provided in the treatment tank, and the waste is decomposed by the microorganism, and the exhaust of the treatment tank is circulated again in the treatment tank after being deodorized by the treated water. And a heater for heating the processing tank to a predetermined temperature is provided on the outer wall surface of the processing tank, and a deodorizing passage for returning exhaust gas after the deodorization to the processing tank via the periphery of the heater is provided. Waste treatment equipment characterized by the above-mentioned. 2. A process for charging waste and microorganisms into a treatment tank,
The waste and the microorganism are stirred by the stirring means provided in the treatment tank, and the waste is decomposed by the microorganism, and the exhaust of the treatment tank is circulated again in the treatment tank after being deodorized by the treated water. And, on the outer wall surface of the processing tank, a heater for heating the processing tank to a predetermined temperature is mounted, and a deodorizing passage for returning the exhaust gas after the deodorization to the processing tank via the periphery of the motor of the stirring means. Waste treatment equipment characterized by being provided.