JPH10305270A - Garbage treating device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently treat garbage by providing plural agitating shafts vertically shifted from one another in a treating tank and rotating the respective agitating shafts so that garbage is scraped upward in the shifting direction of the agitating shaft. SOLUTION: Garbage W, a microorganism and a microorganism promoter are introduced into a treating tank 1 to decompose the garbage W. In this case, the agitating shafts 2 and 3 are rotated by an electric motor in directions of the arrows B1 and C1 to agitate the garbage W by the impeller 4 of the agitating shafts 2 and 3, and hot air is introduced into a hot air passage 12 from a hot air generator 14 and discharged into a treating space S from a discharge port 12B. At this time, the garbage W is scraped upward by the impeller 4 in the shifting direction of the axes O1 and O2, hence the surface W1 of the waste W is inclined upward to the right to increase the surface area, the contact area with air is increased correspondingly, and the garbage W is more efficiently treated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a garbage disposal apparatus for decomposing and treating garbage in a treatment tank together with microorganisms, and more particularly to a garbage disposal apparatus for fermenting out organic waste.

[0002]

2. Description of the Related Art Conventionally, as a processing apparatus for crushing and dewatering garbage, for example, a processing apparatus described in Japanese Patent Application Laid-Open No. 5-146702 is known.

In such a processing apparatus, a stirring blade ("cutting blade" in the publication) is attached to one stirring shaft ("rotation shaft" in the publication) provided inside the processing tank, and the stirring shaft is attached to the stirring blade. By rotating the garbage, the garbage in the processing tank is crushed.

[0004]

In such a processing apparatus, when the processing tank is enlarged to increase the amount of garbage to be processed, the garbage can be reduced only by the stirring blade attached to one stirring shaft. It is difficult to sufficiently stir. Therefore, by disposing a plurality of stirring shafts to which stirring blades are attached, the garbage is sufficiently stirred and the surface area of the garbage is sufficiently ensured to improve the processing performance. However, when the number of stirring shafts is increased in this manner, there is a problem that the processing tank becomes larger, which leads to an increase in the size and cost of the entire processing apparatus.

An object of the present invention is to provide a garbage disposal apparatus capable of efficiently stirring and treating garbage by using a processing tank provided with a plurality of stirring shafts while utilizing the decomposition action of garbage caused by microorganisms. To provide.

[0006]

SUMMARY OF THE INVENTION The present invention relates to a garbage disposal apparatus for agitating garbage in a treatment tank together with microorganisms to decompose the garbage in the treatment tank. A plurality of stirring shafts rotatably and vertically displaced from each other; a plurality of stirring blades attached to the plurality of stirring shafts; A rotating means for rotating the plurality of stirring shafts in a direction in which dust is scraped up.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 4 show a first embodiment of the present invention.
It is a figure for explaining an embodiment. FIG. 1 shows a processing tank 1
2 is a longitudinal sectional view taken along the line II-II in FIG. 1, and FIG. 3 is a view taken in the direction of the arrow III in FIG. The processing tank 1 of this example is formed in a cylindrical shape, and a processing space S for accommodating and processing the garbage W is formed therein. Upper and lower stirring shafts 2 and 3 are rotatably supported about axes O1 and O2 between left and right side walls 1A and 1B of the processing tank 1. The axes O1 and O2 are shifted in the horizontal direction as shown in FIG. 1, and are also shifted by the distance L in the vertical direction. A plurality of stirring blades 4 are attached to each of the stirring shafts 2 and 3.

In the case of this example, a stirring shaft 2 having a square section is used.
Eight stirring blades 4 are attached to each of the nozzles 3, and the stirring blades 4 are connected to each other as shown in FIG.
As shown in (b), the first shaft extending in the radial direction of the stirring shafts 2 and 3
The blades 4A and the axis O1, O from the tip of the first blade 4A
A second blade portion 4B extending in two directions is formed. The base end of the first blade 4A is a first mounting plate 5 having a substantially V-shaped cross section.
A is welded. Then, as shown in FIG. 4 (a), the first mounting plate 5A is fixed by bolts 6A and nuts 6B.
Are connected to both ends of the second mounting plate 5B having a substantially V-shaped cross section, so that the stirring blades 4
Is attached to the outer periphery of the lock.

The eight stirring blades 4 attached to the outer periphery of the lower stirring shaft 2 are positioned at equal intervals along the direction of the axis O1 and are adjacent to each other. The extending directions are shifted by 90 degrees. That is, the first blade 4A of the first stirring blade 4 from the left side in FIG. 2 extends to the back side of the drawing in FIG. 2, and the first blade portion 4A of the second stirring blade 4 is located in the upper part in FIG. Extends to
The first blade portion 4A of the third stirring blade 4 extends to the front side of the drawing in FIG. Similarly, the fourth extends downward in the figure, the fifth extends on the back side of the paper in the figure, the sixth extends upward in the figure, and the seventh extends in the figure. It extends to the front side of the inner paper surface, and the eighth extends downward in the figure. Similarly, the eight stirring blades 4 attached to the outer peripheral portion of the upper stirring shaft 3 are located at equal intervals along the direction of the axis O1 and are adjacent to each other. The extending directions are shifted by 90 degrees.

[0010] As shown in Fig. 3, driven sprockets 7, 8 having the same diameter are attached to the outer ends of the stirring shafts 2, 3, respectively.
A drive sprocket 11 of a reversible electric motor 10 is attached to these driven sprockets 7 and 8 via a chain 9.
Are connected. Then, the electric motor 10 has an arrow A1.
By rotating in the direction, the stirring shafts 2 and 3 are moved by arrows B1 and B2.
When the electric motor 10 rotates in the direction of arrow C1 and the electric motor 10 reversely rotates in the direction of arrow A2, the stirring shafts 2 and 3 move in the directions of arrows B2 and C2.
The direction is reversed. In FIG.
Is a sprocket for giving tension to the chain 9.

The bottom 1C of the processing tank 1 is curved along the rotation locus of the stirring blades 4 of the stirring shafts 2 and 3, as shown in FIG. Further, the bottom 1C and the right rear 1D in FIG.
A hot air passage 12 is formed on the back side of the hot air passage. A hot air inlet (12A) formed on the lower side of the hot air passage 12 is connected to a hot air generator (warm air generating means) 14 via a duct 13, and the hot air from the hot air generator 14 Wind is introduced into the hot air passage 12. Then, the warm air is discharged from the warm air discharge port 12B formed on the upper side of the warm air passage 12 into the processing space S in the arrow D direction. The hot air generator 14
The temperature is controlled by a temperature controller (temperature control means) 16 via a relay 15. The temperature controller 16 adjusts the temperature based on the temperature detected by a temperature sensor 17 (see FIG. 2) for detecting the temperature of the side wall 1B of the processing tank 1. The temperature sensor 17 is attached to a portion of the side wall 1B located on the side of the garbage W, and is attached to, for example, an outer surface of the side wall 1B.

An inlet (not shown) for charging microorganisms and a microorganism promoting material together with the garbage W is provided at the upper part of the processing tank 1 so as to be openable and closable. A discharge port 1E facing the stirring blade 4 on the shaft 2 side is provided so as to be openable and closable. Further, the processing tank 1 has a processing space S
A deodorizing device (not shown) for deodorizing the inside is provided.

Next, the operation will be described. First, a microorganism and a microorganism promoting material are put into the treatment tank 1 together with the garbage W. The microorganism is an aerobic bacterium having a high ability to decompose garbage W and having a deodorizing ability, and decomposes garbage W into water, carbon dioxide, and the like in a short time by a synergistic effect of this microorganism and a microorganism promoting material. When disassembling the garbage W, the electric motor 10 rotates the stirring shafts 2 and 3 in the directions of arrows B1 and C1, and the garbage W is stirred by the stirring blades 4 of the stirring shafts 2 and 3. At the same time, warm air is introduced from the warm air generator 14 into the warm air passage 12 and the warm air is discharged from the discharge port 12B into the processing space S. The warm air discharged into the processing space S dries the garbage W, and is discharged from a discharge port (not shown). The warm air passing through the warm air passage 12 is:
The garbage W in the processing space S is also heated through the wall of the processing tank 1. Thus, the garbage W is decomposed by the microorganism while being stirred, heated, and dried.

By the way, the stirring blade 4 rotating in the directions of the arrows B1 and C1 scrapes the garbage W from the lower side in the direction in which the axes O1 and O2 are displaced upward, that is, to the upper right in FIG. Will be raised. As a result, garbage W
The surface W1 is inclined upward and to the right as shown by the dotted line in FIG. 1 and has a larger surface area than the case where the surface W1 is horizontal. Performance will be improved. 1 in FIG. 1 is the inclination angle of the surface W1 of the garbage W. Further, the top portion of the garbage W scraped up to the rear part 1D by the stirring blades 4 on the stirring shaft 3 will collapse to the left in FIG. 1, and the collapse of the garbage W will also be caused by the collapse. Will be further improved.

In addition, since the stirring shafts 2 and 3 are arranged in a stepwise manner in the vertical direction in a compact manner in accordance with the excellent processing performance of the garbage W, the size of the processing tank 1 can be reduced. It is possible to reduce the size and cost of the entire processing apparatus. The number of the stirring shafts 2 and 3 provided inside the processing tank 1 may be three or more in total. In this case, the stirring shafts 2 and 3 and the three or more stirring shafts are arranged in the same manner as the arrangement. What is necessary is just to displace and deploy.

The hot air passing through the hot air passage 12 is:
The garbage W is efficiently and uniformly heated from the outer periphery of the processing tank 1. Furthermore, in order to effectively use the hot air for drying the garbage W, it is not necessary to provide a special heating means for uniformly heating the garbage. By the way,
When trying to heat the garbage W in the large-sized processing tank 1 using a special heater, it is difficult to uniformly heat the garbage W, and the heating area becomes large, thereby increasing the cost of the entire apparatus, and This leads to an increase in power consumption.

As described above, the garbage W is heated by the warm air passing through the warm air passage 12 through the wall of the processing tank 1, and the temperature difference between the wall of the processing tank 1 and the garbage W is increased. Is constant, the temperature sensor 17 detects the side wall 1B of the processing tank 1
, It is possible to indirectly detect the temperature of the garbage W with high accuracy. Temperature controller 16
Appropriately controls the amount of hot air generated by the hot air generator 14 and the hot air temperature via the relay 15 in order to heat the garbage W to a predetermined temperature based on the temperature detected by the temperature sensor 17. can do. Further, the temperature sensor 17 is connected to the side wall 1B.
The temperature sensor 17 can be a general simple temperature sensor that is not provided with a waterproof measure or the like.

Incidentally, garbage W in the processing space S
It is difficult to directly detect the temperature in the garbage W when trying to detect the temperature of the garbage W. Therefore, the temperature of the heating means of the garbage W and the ambient temperature of the processing space S are indirectly detected. Become. However, in this case, a special sensor which is provided with a waterproof measure or the like is required as the temperature sensor, and the accuracy of detecting the temperature of the garbage W is poor.

After the garbage W is decomposed as described above, the processed garbage W is discharged from the discharge port 1E. In this case, the electric motor 10 drives the stirring shaft 2,
3 is reversed in the directions of arrows B2 and C2. As a result, the stirring blades 4 of the stirring shafts 2 and 3 discharge the processed garbage W located in the depth direction near the rear part 1D of the processing tank 1 to the discharge port 1E.
Thus, the processed garbage W can be efficiently discharged in a short time regardless of the size of the processing tank 1. This also reduces the maintenance time of the processing device.

Since the stirring blades 4 are attached to the stirring shafts 2 and 3 by sandwiching the outer periphery of a square cross section, the stirring shafts 2 and 3 can be stirred without any special processing. The stirring blades 4 can be securely attached to the shafts 2 and 3 while being prevented from rotating. Further, the stirring blades 4 can be easily positioned and attached by being shifted by 90 degrees in the circumferential direction of the stirring shafts 2 and 3 in accordance with the four corners of the stirring shafts 2 and 3 having a square cross section. Thus, the stirring shafts 2, 3
In addition, since the special detent processing is not required, the processing cost can be reduced, and the reduction in the strength of the stirring shafts 2 and 3 can be avoided. By the way, if a process such as welding using a key and a key groove is performed in order to prevent the stirring shafts 2 and 3 and the stirring blade 4 from rotating, the processing cost for forming the key groove and welding is increased. In addition, when the length of the stirring shafts 2 and 3 is increased due to the increase in the size of the processing tank 1, the stirring shafts 2 and 3 may be deformed due to a decrease in strength.

The cross-sectional shapes of the stirring shafts 2 and 3 may be rectangular, such as hexagonal, in addition to square. The point is that the stirring shafts 2 and 3 only need to have a non-circular cross-sectional shape.
A and 5B may have shapes corresponding to the outer peripheral portions of the stirring shafts 2 and 3. The number and shape of the stirring blades 4 are arbitrary, and for example, as shown in FIG. 5, a shape in which a substantially U-shaped blade portion 4C is attached to one side of the first blade portion 4A may be used.

[0022]

As described above, the garbage disposal apparatus of the present invention is provided with a plurality of agitating shafts with agitating blades displaced vertically in a treatment tank in which garbage is agitated together with microorganisms. And, so as to scrape up the garbage from the lower side to the upper side in the direction in which the plurality of stirring axes are shifted,
By rotating the plurality of stirring shafts, the garbage can be efficiently stirred and processed while utilizing the decomposition action of the garbage caused by the microorganisms.

[Brief description of the drawings]

FIG. 1 is a schematic cross-sectional view for explaining a first embodiment of the present invention.

FIG. 2 is a longitudinal sectional view taken along line II-II of FIG.

FIG. 3 is a view taken in the direction of the arrow III in FIG. 2;

4A is a side view of the stirring blade shown in FIG. 1, and FIG.
Is a plan view of the stirring blade.

FIG. 5 is a plan view of a stirring blade according to another embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 1 processing tank 2, 3 stirring shaft 4 stirring blade 5A, 5B mounting plate 6A bolt 6B nut 7, 8 driven sprocket 9 chain 10 electric motor 11 drive sprocket 12 hot air passage 12A hot air inlet 12B hot air outlet 13 duct 14 temperature Wind generator (hot air generator) 15 Relay 16 Temperature controller (Temperature controller) 17 Temperature sensor W Garbage O1, O2 Axis

 ──────────────────────────────────────────────────続 き Continued on front page (72) Inventor Yoichi Miyake 1095 Oiso-cho, Naka-gun, Kanagawa

Claims (5)

[Claims] 1. A garbage disposal apparatus for agitating garbage in a treatment tank together with microorganisms to decompose the garbage, wherein the garbage is rotatable about a substantially horizontal axis and vertically displaced inside the treatment tank. And a plurality of stirring blades attached to the plurality of stirring shafts, and the plurality of stirring blades in a direction in which the plurality of stirring shafts are displaced upward from the lower side to scrape garbage. And a rotating means for rotating the stirring shaft. 2. The garbage according to claim 1, further comprising: reversing means for reversing the direction of rotation of the plurality of stirring shafts; and an openable / closable discharge port located at a lower portion of the processing tank. Processing equipment. 3. A ventilation passage formed in an outer peripheral portion of the processing device; a hot air generating means for generating hot air and introducing the hot air into the ventilation passage; 3. The garbage disposal apparatus according to claim 1, further comprising a hot air discharge port for discharging the inside of the garbage. 4. The stirring shaft has a non-circular cross-sectional shape, and the stirring blade is attached to the stirring shaft so as not to rotate by sandwiching an outer peripheral portion of the stirring shaft. Item 4. The garbage disposal device according to any one of Items 1 to 3. 5. A temperature sensor for detecting a temperature of a wall surface of the processing tank, and a heating temperature of garbage in the processing device by hot air in the hot air ventilation passage based on a temperature detected by the temperature sensor. 4. The garbage disposal apparatus according to claim 3, further comprising a temperature control means for controlling.