JP3238042B2 - Garbage processing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a garbage disposal machine (hereinafter referred to as "garbage disposal") in which garbage (hereinafter referred to as "garbage") generated in a general household kitchen is reduced by fermentation decomposition treatment using aerobic bacteria. Of the agitation blade and the treatment tank in the apparatus.

[0002]

2. Description of the Related Art A garbage disposer of the type in which a culture substrate and an aerobic bacterium are placed and stirred in a treatment tank having a stirring blade and a ventilation device is disclosed, for example, in Japanese Utility Model Laid-Open No. 6-34784.

[0003]

However, in the above-mentioned garbage disposer, the cultivation base material wears out with use time, the corners become smaller, and the voids become smaller.

[0004] In addition, minute soil-like organic substances formed by decomposition of garbage are clogged in these voids, so that air retention and ventilation are deteriorated.

[0005] In addition, the evaporation of water in the interior also worsens, the water content increases, and the water becomes viscous and sticky. At this time, if the stirring is uneven, the wall surface of the processing tank may be solidified and aerobic bacteria may form. It is not suitable for breeding. Instead, the growth of anaerobic bacteria becomes active, causing so-called putrefaction and foul odors.

Further, the torque required to rotate the stirring blade is significantly increased. For this reason, there is a drawback that the motor for driving the stirring blade and the transmission mechanism are overloaded, and a failure occurs relatively early.

It is an object of the present invention to overcome the disadvantages of the prior art.

[0008]

A feature of the present invention is that a culture substrate and an aerobic bacterium are put in a treatment tank having a stirring blade and a ventilator, and garbage is put in and stirred together, whereby a good garbage is added. In a garbage disposer of the type that reduces the amount of garbage by fermentation decomposition treatment by the action of aerobic bacteria, the cross-sectional shape of the stirring blade is almost triangular, and one side is arranged in parallel with the rotating surface of the stirring blade. There is a garbage processing machine which is a feature.

[0009]

According to the present invention, in a garbage disposer of a type in which a culture substrate, aerobic bacteria and garbage are stirred by a stirring blade in a treatment tank, water generated by deterioration of the culture substrate progressing with use time. The disadvantage that the aerobic state cannot be maintained due to the formation of a solid on the wall surface of the processing tank due to the increase in the rate and the increase in the viscosity can be solved by uniformly stirring the whole.

[0010]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is an overall perspective view for explaining the principle of the garbage disposer of the present invention, FIG. 2 is a longitudinal sectional view of FIG.
FIG. 3 is a sectional view taken along line AA of FIG. FIG. 4 is BB of FIG.
FIG. 5 and FIG. 6 are cross-sectional views of essential parts showing another embodiment.

Reference numeral 1 denotes a garbage treatment tank having a stirring blade 2 in the center, in which a culture substrate 3 is placed.

The culture substrate 3 is mainly made of fibrous material such as lignin or the like, which is hardly biodegradable, and is mainly made of sawdust, husk, etc., each of which is porous, has water absorption and voids, and has a complicated particle shape. Thus, large voids are formed between the particles.

Reference numeral 4 denotes a rotating shaft of the stirring blade 2, which is rotated by a driving motor 5 via a transmission mechanism 6 such as a chain or a belt. A fan 10 for ventilation, an intake port 11, and an exhaust port 12 are provided at an upper portion of the processing tank 1.

By rotating the fan 10, fresh air is sucked into the processing tank through the intake port 11, and the water vapor and various gases in the processing tank are discharged out of the apparatus through the exhaust port 12.

Each of the suction port 11 and the exhaust port 12 has a filter. An outlet 15 for contents is provided at the bottom of the processing tank 1.

Usually, it is shielded by a pull-out type shutter 17 having 16. Then, when the user puts his hand on the shutter 16 and pulls out the shutter 17, the contents of the processing tank 1 are discharged.
5 falls into the discharge path 18 and can be taken out of the machine only by scraping it out.

Reference numeral 20 denotes an inlet for food waste into the processing tank 1, which is covered with an outer lid 21.

A door switch (not shown) is provided on the outer lid 21.
When the outer lid 21 is opened to a certain angle, the door switch is opened, the power of the motor 5 is turned off, and the stirring blade 2 is stopped.

Here, the cross-sectional shape of the processing tank 1 is
As shown in FIG. 2 so that the whole is uniformly agitated with a light action, it has a shape having an arc portion of substantially a semicircle or more, and the rotating shaft 4 is aligned with the center of the arc of the arc portion. Is provided. A plurality of stirring blades 2 are fixed to the rotating shaft 4.

The sectional shape of the stirring blade 2 is substantially triangular as shown in FIGS. 3 and 4, and one side thereof is arranged so as to be parallel to the rotation surface of the stirring blade 2.

Then, the apex angle 3 on both sides sandwiching the side 30
1, 32 are set to an acute angle of 60 degrees or less. Then, the stirring blade 2 alternately repeats forward rotation and reverse rotation.

Thus, even if the culture substrate contains water and becomes highly viscous, the stirring blade 2 cuts the substrate at an acute angle of not more than 60 degrees with respect to the rotating surface in both forward and reverse rotations. Since it can advance and can be swept apart and rotated, the rotating torque is small, and the base material is moved, mixed and stirred so as to flow smoothly along the triangular slope.
In particular, the forward / reverse rotation of the stirring blades 2 complicates the movement of the base material, and produces uniform and uniform stirring throughout.

On the two walls parallel to the rotation surface of the stirring blade 2 of the processing tank 1, the stirring blade 2 faces the triangular cross section with one side 30 parallel to the wall surface and is arranged close to the wall surface. . The distance a between the wall surface and one side of the stirring blade is set to 5 to 15 mm.

As a result, even when the stirring blade moves, even with a viscous and sticky base material, a force that presses the base material against the wall surface does not work, so that a solid layer such as a mud wall may be formed on the wall surface. It has the effect of being prevented.

In the present invention, the wall surface parallel to the rotating surface of the processing tank is a surface for supporting the rotating shaft 4 as shown in FIG. By reinforcing with a ring-shaped concave-convex surface 40 concentric with 4, it is difficult for the base material to be caught and a mud-wall-like lump layer is hardly formed on the wall surface.

Further, in the present invention, as shown in FIG. 5, the mass of the base material can be formed by artificially forming a pseudo-aggregate in advance at a location where the mass layer of the base material is generated on the inner wall surface of the processing tank. Try to prevent.

That is, the porous sponge-like lining 41 is partially adhered. This also prevents the formation of a partial base mass.

Further, in the present invention, as shown in FIG.
The steel plate 43 bent in a substantially V-shape is fixed to the stirring rod so that the opening surface of the V-shape is parallel to the rotation surface of the stirring blade.

The fixing method is welding, screwing, or the like.
As a result, it is possible to produce a stirring blade having a triangular cross section which is extremely high in productivity and inexpensive.

[0031]

According to the present invention, the disadvantage of the method of fermenting and decomposing at a relatively low temperature near normal temperature using a culture substrate such as aerobic bacteria and sawdust is that the amount of water increases with the use time and becomes sticky. This makes it possible to prevent the occurrence of a strong odor and an overload of the stirring motor due to the formation of a lumpy clay-like lump, thereby achieving a good fermentation decomposition treatment of garbage over a long period of time.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an overall configuration of a garbage processing machine according to one embodiment of the present invention.

FIG. 2 is a longitudinal sectional view of FIG.

FIG. 3 is a sectional view taken along line AA of FIG. 2;

FIG. 4 is a sectional view taken along line BB of FIG. 3;

FIG. 5 is a transverse sectional view showing another embodiment.

FIG. 6 is a cross-sectional view of a stirring blade according to another embodiment.

[Explanation of symbols]

DESCRIPTION OF REFERENCE NUMERALS 1: garbage disposal tank, 2: stirring blade, 3: culture substrate, 4:
Rotating shaft, 5 ... motor, 21 ... outer lid.

──────────────────────────────────────────────────続 き Continuation of front page (72) Inventor Kenichi Hamada 1-1-1 Higashitagacho, Hitachi City, Ibaraki Prefecture Within Hitachi Taga Technology Co., Ltd. (56) References JP-A-7-136619 (JP, A) JP-A-7-171546 (JP, A) JP-A-7-75769 (JP, A) JP-A-6-34784 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) B09B 3 / 00 B02C 18/40 B02C 18/40 103

Claims (6)

(57) [Claims] 1. An aerobic microorganism is fermented and decomposed by the action of an aerobic bacterium by putting a culture substrate and an aerobic bacterium into a treatment tank having a stirring blade and a ventilator, and adding and stirring the garbage. A garbage processing machine of a type that reduces the weight of the garbage by treating the garbage, wherein the cross-sectional shape of the stirring blade is substantially triangular, and one side thereof is arranged in parallel with the rotation surface of the stirring blade. 2. A stirrer according to claim 1, wherein the apex angles on both sides sandwiching one side parallel to the rotation plane of the stirring blade having a substantially triangular cross section are set to 60 degrees or less, and the stirring blade can rotate in either forward or reverse rotation direction. In contrast, the angle of attack between the rotating surface of the stirring blade and the blade is 60
A kitchen waste disposal machine characterized by an acute angle of less than degrees. 3. The stirring blade according to claim 1, wherein one side parallel to the rotation surface of the stirring blade having a substantially triangular cross section is opposed to and close to a wall surface parallel to the rotation surface of the stirring blade in the processing tank. Garbage disposal machine characterized by the following. 4. The garbage disposal according to claim 1, wherein a wall surface parallel to the rotation surface of the stirring blade of the processing tank is reinforced by arc-shaped or ring-shaped irregularities concentric with the rotation axis of the stirring blade. Machine. 5. The garbage disposal machine according to claim 1, wherein a porous sponge-like lining is partially adhered to an inner wall surface of the treatment tank. 6. The stirring blade according to claim 1, wherein the stirring blade is formed by bending a steel plate into a V-shape, covering the steel plate on a stirring rod, and fixing the V-shaped opening surface so as to be parallel to the rotation surface of the stirring blade. A garbage disposal machine characterized by having a substantially triangular cross section.