JPH07116636A - Garbage treatment machine - Google Patents

Abstract

PURPOSE:To efficiently decompose large lumpy garbage by a small-sized inexpensive garbage treatment machine not requiring the arrangement of a special crusher. CONSTITUTION:In a garbage treatment machine, a culture base material 3 is charged on a treatment tank 1 having stirring blades 2 provided therein and garbage is stirred with the culture base material 3 in the tank 1. This machine includes a drive motor 5 for driving the stirring blades 2 in a garbage crushing mode, and a control device 30 for rotating the stirring blades 2 in the garbage crushing mode at the time of the charge of garbage.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a garbage treating machine for reducing the amount of garbage (garbage) generated in kitchens of ordinary households by decomposing it using microorganisms.

[0002]

2. Description of the Related Art An example of this type of garbage processor is disclosed in Japanese Patent Laid-Open No.
As described in JP-A-4084, a culture substrate (microorganism implantation material) is placed in a treatment tank equipped with a stirring blade and a ventilation device, and the crushed food waste is put into the culture substrate to cultivate the culture substrate. It is configured to stir together with the material.

In order to accelerate the decomposition of food waste by microorganisms, it is necessary that the food waste has a large surface area in contact with the microorganisms. When slender materials such as long onions are mixed, the decomposition rate is significantly reduced. Therefore, it is preferable that the food waste to be put into the treatment tank be finely crushed, and the conventional garbage treating machine of this type requires a crusher.

[0004]

It is desirable that the garbage disposal machine installed in a general household is small and inexpensive, but the garbage disposal machine that requires a crusher to be installed side by side like the conventional equipment has a form And the price is insufficient.

An object of the present invention is to propose a small-sized and inexpensive kitchen waste disposal machine which does not require the installation of a special crusher.

[0006]

DISCLOSURE OF THE INVENTION According to the present invention, a garbage disposal device in which a culture substrate is placed in a treatment tank equipped with stirring blades, and garbage is put therein and stirred together with the culture substrate. In the above, a drive device capable of driving the stirring blade in a food waste crushing mode is provided, and specifically, a driving device capable of increasing the rotation speed of the stirring blade to the food waste crushing speed. Or a drive device capable of driving the rotation of the stirring blade at a food waste crushing time interval.

[0007]

Since the stirring blade can crush the food waste in the processing tank to increase the contact area with the microorganisms, the large garbage can be efficiently decomposed.

[0008]

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

FIG. 1 is a perspective view of a garbage processing machine according to the present invention,
2 is a vertical sectional side view thereof, and FIG. 3 is an AA vertical sectional front view thereof.

The food waste treatment tank 1 in which a stirring blade 2 is rotatably installed in the center contains a culture substrate 3. The culture substrate 3 is, for example, sawdust, rice husk, or rice straw whose main component is hard-to-decompose fibrin, and each grain is porous, and the grain shape is complicated and irregular. It is preferable that a large gap be formed between the grains.

The shaft 4 of the stirring blade 2 penetrates the side wall of the processing tank 1 and projects outward, and is connected to a drive motor 5 via a transmission mechanism 6 such as a chain or a belt. An exhaust port 12 that communicates with an exhaust fan 10 for ventilation and an intake port 11 that communicates with the outside air are provided in the upper part of the processing tank 1 so that the gas generated in the processing tank 1 is discharged and fresh air is sucked in. Composed. Filters are installed at the intake port 11 and the exhaust port 12, respectively.

A discharge port 15 is provided at the bottom of the processing tank 1 so that the residue after the decomposition process is discharged to the outside of the machine through a discharge path 18. The discharge port 15 and the discharge path 18
Is normally closed by a plug 17 having a handle 16.

A garbage input port 2 formed in the upper part of the processing tank 1.
0 is openably and closably closed by the inner lid 22, and the outer side is also closed by the outer lid 21 to form a double lid structure. Packing is provided on the contact surfaces of both lids 21 and 22 in order to obtain an airtight effect. The opening / closing of the outer lid 21 is detected by the lid switch 23, and when the outer lid 21 is opened to a certain angle, the drive motor 5 is controlled so as to stop the rotation of the stirring blade 2. The operation control of the drive motor 5 for rotating the stirring blade for ensuring the safety and supporting the decomposition of the food waste is performed by the control device 30.

A specific example of the control device 30 will be described with reference to FIGS. The control device 30, as shown in FIG.
A control power supply circuit 31, a microcomputer 32, and a motor drive circuit 33 are provided. This garbage disposal is connected to a commercial power source through a plug 34 and supplies power to the drive motor 5 and the exhaust fan 10 through the lid switch 23 and the motor drive circuit 33. Drive motor 5
Is a capacitor phase split type single-phase induction motor, and the motor drive circuit 33 includes an inverter circuit capable of operating / stopping the drive motor 5 and controlling the rotation speed.

The microcomputer 32 has a built-in program for controlling the motor drive circuit 33 for timer function and speed control, and refers to ON / OFF of the lid switch 23 when the outer lid 21 is opened / closed for processing. The control of operating the drive motor 5 and the exhaust fan 10 is performed so as to estimate the input of food waste to the tank 1 and rotate the stirring blade 2 at a rotation speed suitable for crushing and decomposing the food waste.

This kitchen refuse replenisher replenishes water so that the water content of the culture substrate 3 in the treatment tank 1 becomes 40 to 60%.
A microorganism for decomposing food waste is added and stirring is performed to form a bed for breeding the microorganism. After that, the lids 21 and 22 are opened and the garbage is put into the processing tank 1. When the lids 21 and 22 are closed, the lid switch 23 is turned on and the control device 30 executes the rotation control of the drive motor 5. That is, the control device 3
0 drives and controls the drive motor 5 and the exhaust fan 10 so that stirring and ventilation are alternately repeated at a predetermined time interval.

The garbage in the treatment tank 1 is agitated together with the culture substrate 3 to be crushed, and is abraded by being rubbed by the grains of the uneven culture substrate 3. Then, decomposition is repeated until the enzyme secreted by the microorganism adheres to the surface and becomes a single molecule. Microorganisms take in garbage that has been decomposed to a level that is easy to take in as an energy source and develop reproductive activities. Due to the respiratory action at this time, food waste is transformed into carbon dioxide, water vapor, trimethylamine and methyl mercaptan that cause malodor, and heat of fermentation. Then, these are discharged outside the machine by the exhaust fan 10.

In order to improve the rate of decomposing food waste in such a food waste decomposition process, it is necessary to increase the contact area between the food waste and the microorganisms. Large lumps of garbage such as watermelon and melon skin and elongated garbage such as leek are
It is desirable to finely crush and increase the surface area.

The control device 30 for the garbage processing machine according to the present invention
Performs the control of rotating the stirring blade 2 so as to be suitable for crushing the food waste into such a state. That is,
As shown in FIG. 5, the microcomputer 32 executes the process 5 when it detects that the lid switch 23 is turned on in the process 51.
2, the elapsed time after the lid switch 23 is turned on is confirmed, and if it is within a predetermined time (T ″), the process proceeds to step 53, and the motor drive circuit 33 is controlled to rotate the drive motor 5 at high speed. Then, when a predetermined time (T ″) has passed, the process 54 is executed to shift to the control for rotating the drive motor 5 at a low speed.

In step 53, as shown in FIG. 7, the stirring time T _{1 for} rotating the drive motor 5 at a high speed by generating a high drive voltage V ₂ and energizing the drive motor 5 and the exhaust fan 10 are added. This is a repetitive control of the ventilation time T ₂ for energizing and ventilating, and N cycles are carried out within a predetermined time (T ″) with this as one cycle. At this time, the rotation speed of the drive motor 5 is The rotation speed is set so as to be suitable for crushing the lumps of C. Then, after a lapse of a predetermined time (T ″), the process proceeds to the process 54, and the low drive voltage V
_{When 1} is generated and the drive motor 5 is energized, the stirring time for rotating the drive motor 5 at a low speed and the ventilation time for energizing the exhaust fan 10 for ventilation are repeated. At this time, the rotation speed of the drive motor 5 is set so that the stirring blade 2 performs a stirring rotation suitable for supporting the decomposition of food waste.

The function of crushing the lump of food waste by rotating the stirring blade 2 can also be obtained by prolonging the stirring time by the stirring blade 2. Crushing of food waste by prolonging the stirring time is realized by controlling the drive motor 5 to be energized for a long time in the process 55 as shown in FIG. FIG. 8 shows the drive motor 5 in this control process.
It shows a power supply time chart to T, and has a relationship of T ₁ <T ₁ '.

[0022]

As described above, according to the present invention, since the garbage is crushed in the treatment tank by the stirring blade to increase the contact area with the microorganisms, it is necessary to install a special crusher. It is possible to efficiently decompose even large lumps of garbage with a small and inexpensive kitchen waste disposal machine.

[Brief description of drawings]

FIG. 1 is a perspective view of a garbage processing machine according to the present invention.

FIG. 2 is a vertical cross-sectional side view of the garbage processing machine according to the present invention.

FIG. 3 is a vertical sectional front view taken along the line AA of FIG.

FIG. 4 is an electric circuit diagram of a control device in the garbage processing machine according to the present invention.

FIG. 5 is a flowchart of a control process executed by a control device in the garbage processing machine according to the present invention.

FIG. 6 is a flowchart of a control process executed by a control device in the garbage processing machine according to the present invention.

FIG. 7 is a power supply control time chart executed by the control device in the garbage processing machine according to the present invention.

FIG. 8 is a power supply control time chart executed by the control device in the garbage processing machine according to the present invention.

[Explanation of Codes] 1 treatment tank 2 stirring blade 3 culture substrate 5 drive motor 30 controller

Claims (7)

[Claims] 1. A kitchen refuse disposal machine in which a culture substrate is placed in a treatment tank equipped with stirring blades, and the garbage is put into the treatment tank to stir together with the culture substrate. A garbage disposal machine, characterized by comprising a drive device capable of being driven in a crushing mode. 2. A kitchen waste processing machine in which a culture substrate is placed in a treatment tank equipped with a stirring blade, and garbage is put therein to stir the culture substrate together with the culture substrate. A garbage disposal machine, which is provided with a drive device capable of increasing the speed of crushing food waste to the speed of crushing garbage. 3. The garbage disposal according to claim 2, wherein the drive device is provided with a control device for temporarily increasing the rotation speed of the stirring blade to the crushing speed of the garbage at the initial stage of feeding the garbage. 4. The control device according to claim 2, wherein the drive device temporarily increases the rotation speed of the stirring blade to the crushing speed of the garbage at the initial stage of feeding the garbage, and then decreases the stirring speed to the decomposition assisting stirring speed. A kitchen waste processing machine characterized by that. 5. A kitchen waste treating machine in which a culture substrate is placed in a treatment tank equipped with a stirring blade, and garbage is put into the treatment tank to stir the culture substrate together with the rotation of the stirring blade. A garbage disposal device, which is provided with a drive device that can be driven at a time interval for crushing food waste. 6. The garbage disposal according to claim 5, wherein the drive device includes a control device that performs an intermittent operation for increasing a rotation time of a stirring blade at an initial stage of throwing food waste. 7. The control device according to claim 5, wherein the drive device performs an intermittent operation for increasing the rotation time of the stirring blades at the initial stage of throwing in the garbage and then reduces the rotation time until the decomposition assisted stirring. Garbage Disposal Machine.