JP3357842B2 - Waste treatment equipment - Google Patents

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.

[0003] On the other hand, some of the stirring devices described above are difficult to decompose depending on the waste, and when the operation time of the stirring device is set in accordance with the capacity of the fermenter, it remains without being decomposed within the set time. In addition, there is a problem that the operation time becomes long when the operation is performed while observing the processing state.

[0004]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to improve the efficiency of crushing waste by a stirrer and mixing the waste with microorganisms.

[0005]

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. In which the surface of the processing tank is provided with irregularities.

According to the present invention, the unevenness is set so that the lower side of the processing tank is rough and the upper side is fine.

Further, according to the present invention, the stirring means is constituted by a rotating shaft disposed in a substantially horizontal direction in the processing tank, and a stirring blade protruding around the outer periphery of the rotating shaft.
It is constituted by a ridge substantially parallel to the rotating shaft.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment according to the present invention will be described first with reference to FIGS. 1 and 2. Reference numeral 1 denotes an apparatus main body, which has an opening 2 on one side and a U-shaped bottom. A processing chamber 3 having a bottomed rectangular tube shape is disposed, and a storage chamber 4 is defined on the other side.

Reference numeral 5 denotes a stirring means mounted in the processing tank 3, which is provided with a rotating shaft 7 whose both ends are supported in a substantially horizontal direction by a pair of bearings 6, 6, and which is provided at an appropriate distance around the rotating shaft. , And a motor 11 that is installed in the storage chamber 4 and rotationally drives the rotary shaft 7 via a belt 9 and a pulley 10.

Reference numeral 12 denotes an exhaust hole opened on the upper side wall of the processing tank 3, and an exhaust hole 13 opened at the tip connects an exhaust duct 15 opened into the water of the deodorized treated water 14, and this exhaust hole is also provided. An exhaust fan 16 is mounted in the middle of the duct, and these constitute an exhaust passage.

The treated water 14 contains, for example, an effective microbial composite bacterium mainly composed of aerobic Bacillus subtilis (Bacillus sp.) And blended with other bacteria for deodorization. As the odorous substances in the exhaust gas, 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 There are isobutyl ketone, ethyl acetate, isobutanol, propionaldehyde, isovaleraldehyde, isobutyraldehyde, normal valeraldehyde, normal butyraldehyde, etc., and a bacterium that decomposes these is used.

On the upper surface of the tank 17 for storing the treated water 14, an exhaust fan 18 for discharging exhaust gas generated from the treated water surface of the tank is provided.

On the other hand, a panel heater 20 in which a heater 19 such as a sheath 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 measured by a not-shown temperature sensor such as a thermistor. Detected and controlled for electricity, waste-treating microorganisms that blend yeast and other bacteria according to the type of waste, mainly for aerobic Bacillus subtilis (Bacillus subtilis), etc. Is configured to control the heating to a temperature at which it can easily grow.

Reference numeral 21 denotes an air intake hole formed in an upper side surface of an outer case 22 of the main body, which communicates with an upper portion of the processing tank 3 through an air intake duct 23, and the exhaust fans 16 and 18 rotate to rotate the processing tank. When the inside of the tank 3 becomes a negative pressure, the outside air is sucked into the processing tank 3 through the intake duct 23.
On the side wall 24 and the bottom wall 25 of the processing tank 3, a plurality of ridges 26 parallel to the rotating shaft 7 and protruding into the processing tank 3 are integrally formed. Thus, irregularities are formed on the inner wall surface of the processing tank 3.

When the waste and microorganisms are put into the treatment tank 3 and the motor 11 is energized, the rotating shaft 7 is rotated to rotate the stirring blades 8.
··· Waste located between the tip of the processing tank 3 and the side wall 24 or the bottom wall 25 is pressed against the ridges 26 ··· to cause friction with the ridges, and the waste is efficiently crushed. Is what you do.

Reference numeral 27 denotes an outlet opening on one side of the bottom of the processing tank 3 for taking out a residue of the waste decomposed in the processing tank, and is closed by a lid 28 so as to be openable and closable.

FIG. 3 shows another embodiment of the present invention.
A large number of irregularities 29 are formed on the inner surfaces of the side wall 24 and the bottom wall 25 of the processing tank 3, and the waste is efficiently crushed by contact of the irregularities with the waste, thereby promoting the decomposition treatment of the waste. It is configured like this. FIG. 4 shows another embodiment of the present invention, in which a large number of irregularities 30... 31 are formed on the inner surfaces of the side wall 24 and the bottom wall 25 of the processing tank 3 and the side wall 2.
The four irregularities 30 are fine, and the irregularities 31 on the bottom wall 25 are fine.
・ If the waste is relatively large at the beginning of treatment, the waste is crushed into a so-called rough cut by contact between the waste and the irregularities 31. When the waste is stored in the upper layer, the waste is further finely crushed by contact between the waste and the irregularities 30... To promote the decomposition treatment by microorganisms. In addition, the ridge 26 and the unevenness 29 shown in each of the above embodiments.
The irregularities 30... 31 may be formed directly on the wall surface of the processing tank 3 by bending or the like, or separate parts such as ridges and sheet metal having irregularities may be formed in the processing tank 3. It may be fixed to a wall surface, and the pitch of the ridges and irregularities may be appropriately set according to the volume of the processing tank, the diameter of the stirring blades 8,... 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 of the processing tank 3 is controlled to a temperature suitable for the growth and propagation of microorganisms (for example, 35 to 45 ° C. for garbage and 50 to 70 ° C. for rubber gloves) by controlling the power supply to the heater 19. The power supply to the motor 11 is controlled to rotate the stirring blade 8 to mix waste and microorganisms, and at the same time, the exhaust fans 16 and 18 are rotated to deodorize the odor generated from the processing tank 3 by the processing water 14. The inside of the processing tank 3 becomes a negative pressure by being exhausted to the outside, so that outside air is sucked into the processing tank 3 through the air intake port 21 and the air suction duct 23, and air (oxygen) necessary for microorganisms to multiply is obtained.
Supply.

When the processing is completed after a predetermined processing time or the like has elapsed, the lid 28 is opened, and the residue remaining in the processing tank 3 is taken out from the outlet 27.

[0019]

According to the constitution of the present invention, the unevenness is provided on the inner wall surface of the treatment tank provided with the stirring means for stirring the waste and the microorganisms. By pressing against the surface, the waste can be crushed more efficiently and the decomposition treatment by microorganisms can be promoted.

According to the structure of the present invention, the unevenness provided on the lower side of the inner wall of the processing tank is coarse, and the unevenness provided on the upper side is finely set. The waste that has been crushed roughly by the rough uneven surface and crushed relatively finely and moved to the upper layer of the treatment tank is further crushed by the finely set uneven surface, shortening the crushing time of the waste, Decomposition by microorganisms can be performed more efficiently.

Further, according to the structure of the present invention, the rotating shaft constituting the stirring means is disposed substantially in the horizontal direction, and the inner wall surface of the processing tank is provided with projections and depressions constituted by ridges substantially parallel to the rotating shaft. Thereby, when agitating the waste by the stirring blade provided on the rotating shaft, the waste can be more positively pressed against the ridge, and thereby the waste can be crushed more efficiently by the stirring means. Things.

[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 of the same.

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

FIG. 4 is a front vertical sectional view showing still another embodiment.

[Explanation of symbols]

 3 treatment tank 5 stirring means 7 rotating shaft 8 stirring blade 26 ridge 29 irregularities 4

────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Noriaki Hirano 3-201 Minamiyoshikata, Tottori City, Tottori Prefecture Tottori Sanyo Electric Co., Ltd. (72) Inventor Teruo Okuda 3-201 Minamiyoshikata, Tottori City, Tottori Prefecture Tottori (56) References JP 9-47743 (JP, A) JP 9-248545 (JP, A) JP 9-10738 (JP, A) Registered utility model 3040196 (JP, A) U) (58) Fields surveyed (Int. Cl. ⁷ , DB name) B09B 3/00-5/00

Claims (1)

(57) [Claims] Claims 1. A waste and microorganisms are charged into a treatment tank,
Stirring and the microorganism the waste by stirring means provided in the treatment tank, the in what decomposing waste by this microorganism, Ru irregularities on the inner wall surface of the processing tank co
In addition, the above irregularities are roughened,
It can be crushed into
A waste treatment apparatus characterized in that rough cut waste can be further finely crushed .