JP3357841B2 - 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 that decomposes waste such as garbage and rubber gloves using microorganisms, the waste and microorganisms for treatment are put into a treatment tank and stirred by a stirrer. The inside of the processing tank is controlled to a temperature suitable for the growth of microorganisms by a heater or the like, and a large amount of air is supplied to promote the growth of microorganisms. On the other hand, in a relatively small processing apparatus, a fan 10 is provided above the processing tank 1 as shown in, for example, Japanese Patent Application Laid-Open No. 7-136618. In this case, air is supplied only to the waste located at the upper part of the processing tank, and there is a problem that oxygen is hardly supplied into the processing tank.

[0003]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to increase the amount of oxygen supplied to microorganisms located inside a processing tank to improve the decomposition efficiency.

[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. In the process of disassembling, the stirring means is formed by projecting a stirring member in the radial direction of the rotating shaft, and the rotating shaft is formed in a hollow shape to form an air supply passage therein, and the rotating shaft is A plurality of air ejection holes communicating with the air supply passage are formed at appropriate places, and air is supplied from the air ejection holes into the processing tank.

In the present invention, the rotary shaft is disposed substantially horizontally, and the inner wall of the air supply passage is formed in a tapered shape. Further, in the present invention, the rotary shaft is disposed in a substantially horizontal direction, and a partition plate is inserted and mounted obliquely in the air supply passage.

[0006]

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, and a rotating shaft 7 having both ends pivotally supported by a pair of bearings 6 and 6, which are protruded and fixed around the rotating shaft at an appropriate interval. A plurality of agitating blades 8... And a motor 11 installed in the storage chamber 4 and configured to rotate the rotating shaft 7 via a belt 9 and a pulley 10 are mainly configured.

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 treated water 14 for deodorization. An exhaust fan 16 is mounted in the middle of the duct, and these constitute an exhaust passage.

The treated water 14 is filled with an effective microbial complex which is mainly composed of aerobic Bacillus subtilis (Bacillus sp.) And is blended with other bacteria for deodorization. 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. An exhaust fan 18 for discharging exhaust gas generated from the surface of the treated water in the tank is provided on the upper surface of the tank 17 for storing the treated water 14. On the other hand, a panel heater 20 in which a heater 19 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 composed of aerobic Bacillus subtilis (Bacillus subtilis), are blended with yeasts and other bacteria according to the type of waste, and grow. It is configured to control heating to an easy temperature. The rotary shaft 7 is disposed substantially horizontally at the bottom of the processing tank 3 and is formed in a hollow cylindrical shape so that the air supply passage 2 is provided therein.
1, and the opening 22 at one end of the air supply passage communicates with an intake hole 24 pierced to face the side surface of the outer case 23 of the main body 1. Further, a tapered surface 25 having a large inner diameter at one end is formed on the inner wall of the air supply passage 21, and the air supply passage 21 is formed at an appropriate position on the peripheral wall of the rotary shaft.
When the exhaust fans 16 and 18 rotate and the inside of the processing tank 3 becomes a negative pressure, the outside air is supplied from the air blowing holes 26 to the inside of the processing tank 3. It is configured to do so. As a result, the air ejection holes 26
..The air can be reliably supplied to the inside of the waste thrown into the bottom of the processing tank 3 to promote the activity of microorganisms, and the processing efficiency can be improved. Even if it enters the air passage 21, there is a possibility that the intruder moves by the tapered surface 25 and is discharged from the air ejection holes 26 and / or the opening 22 and is accumulated in the air supply passage 21 to corrode the rotary shaft 7. Absent. 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, in which the thickness of the peripheral wall of the rotary shaft 7 is formed substantially constant and the air supply passage 2 is formed.
1 is formed in a straight shape, a partition plate 29 is inserted and mounted obliquely in the air supply passage 21, and the rotary shaft 7
Are formed at both ends thereof with air holes 30 communicating with the air supply passage 21. Thereby, the rotating shaft 7 can be formed by a relatively inexpensive metal pipe or the like, and the partition plate 29
Thus, waste can be prevented from remaining in the rotating shaft 7. 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 19 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 electric power to the motor 11 while controlling the temperature to about 70 ° C., the stirring blade 8 is rotated to mix the waste and the microorganisms, and at the same time, the odor generated from the processing tank 3 is rotated by rotating the exhaust fans 16 and 18. Is deodorized by the treated water 14 and exhausted to the outside, so that the inside of the treatment tank 3 has a negative pressure. As a result, air is ejected from the air ejection holes 26 of the rotating shaft 7 and the air required for the growth of microorganisms. (Oxygen).

On the other hand, 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.

[0011]

According to the structure of the present invention, an air ejection hole is pierced in a rotating shaft of a stirring means for stirring waste and microorganisms, and oxygen necessary for the growth of microorganisms is supplied into the waste from the air ejection hole. By doing so, the activity of microorganisms can be further activated and the efficiency of waste treatment can be improved.

Further, according to the configuration of the present invention, the taper is formed on the inner wall of the air supply passage of the rotary shaft, so that even if waste or the like enters the air supply passage from the air ejection hole, the intruded material is moved by the taper. Then, it is discharged to the outside, and corrosion of the rotating shaft and clogging of the passage due to remaining in the air supply passage can be prevented. Further, according to the configuration of the present invention, the partition plate is inserted and mounted obliquely in the air supply passage of the rotary shaft, so that a part of waste or the like that has entered the air supply passage from the air ejection hole is moved by the partition plate. It is possible to prevent the intrusion from remaining in the air supply passage by discharging to the outside and to reduce the cost by forming the rotating shaft with a relatively inexpensive metal pipe or the like.

[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 side longitudinal sectional view showing another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 3 Processing tank 5 Stirring means 7 Rotating shaft 8 Stirring member 21 Air supply passage 25 Tapered surface 26 Air ejection hole 29 Partition plate 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 JP-A 9-276825 (JP, A) JP-A 8-323335 (JP, A) JP-A 8-84980 (JP, A) JP-A 7-204609 ( JP, A) JP-A-58-170599 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) B09B 3/00

Claims (2)

(57) [Claims] Claims 1. A waste and microorganisms are charged into a treatment tank,
The waste and the microorganisms are stirred by stirring means provided in the treatment tank, and the waste is decomposed by the microorganisms. The stirring means is provided by protruding a stirring member in a radial direction of a rotating shaft. In addition, the rotary shaft is formed in a hollow shape to form an air supply passage therein, and a plurality of air outlets communicating with the air supply passage are formed at appropriate positions of the rotary shaft. In the waste treatment apparatus for supplying air into the treatment tank,
The shaft is disposed in a substantially horizontal direction, and the air supply passage
A waste treatment apparatus characterized in that an inner wall of the waste material is formed in a tapered shape . (2) Put waste and microorganisms into the treatment tank,
The above waste and microbes are agitated by the stirring means provided in this treatment tank.
Agitation and decompose waste by this microorganism
In the above, the stirring means is provided in the radial direction of the rotating shaft.
A stirring member is protruded from the
The air supply passage is formed inside the
A plurality of rotating shafts communicating with the air supply passages at appropriate locations.
Drill the air outlets and use these air outlets to
In the waste treatment equipment that supplies air into the
The shaft is disposed in a substantially horizontal direction, and the air supply passage
Disposal characterized by inserting a partition plate at an angle inside
Object processing equipment.