JPH0884980A - Agitation device for garbage disposal machine - Google Patents

Abstract

PURPOSE: To provide sufficient air around microbes mixed with garbage and dispose the garbage by setting a hollow agitating body with air jet nozzles in a garbage disposal tank and agitating the garbage while jetting air. CONSTITUTION: A hollow rotating shaft 21 is positioned on a central section of a disposal tank 12, and a hollow agitating body 25 consisting of a connecting pipe 25a extending in the diameter direction and hollow helical agitating elements 25b extending helically are provided on the rotating shaft 21. Air jet nozzles 26 are installed respectively on the same phase positions in the rotating direction of the hollow rotating shaft 21 on the hollow helical agitating elements 25b. Garbage almost as much as half of a drum and adequate amount of microbes are put into the disposal tank 12, and the hollow rotating shaft 21 is rotated to open and close a selector valve 35. Then, air from a compressed air source 34 is introduced intermittently into the hollow rotating shaft 21, and air is jetted out of air jet nozzles 26. At that time, air is jetted when the garbage is moved mainly to the lower half to accelerate the decomposition of garbage by microbes.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a food waste processing machine for processing food waste by utilizing microorganisms, and more particularly to a stirring device therefor.

[0002]

2. Description of the Related Art A garbage disposal machine utilizing the decomposition action of garbage by microorganisms has been attracting attention. In this garbage disposal, it is preferable to continuously supply air and maintain the temperature within a certain range in order to accelerate the decomposition action of microorganisms. For this reason, conventionally, a means for stirring raw garbage has been provided in the processing tank, and air has been jetted to the upper part of the processing tank. Moreover, in order to realize a temperature environment, the entire processing tank is kept warm or heated.
However, simply blowing air into the treatment tank cannot sufficiently promote the decomposition action of microorganisms, and even if the entire treatment tank is kept warm or heated, it is impossible to create an appropriate temperature environment around the essential microorganisms. I couldn't do it.

[0003]

An object of the present invention is to provide a stirring device capable of more effectively supplying air to the microorganisms in the processing tank of the garbage disposal. Another object of the present invention is to obtain a stirring device that can supply air while heating it as needed in a low temperature environment.

[0004]

SUMMARY OF THE INVENTION The present invention has been completed based on the idea that sufficient air can be given to the surroundings of microorganisms mixed in raw garbage by directly ejecting air from a hollow stirrer for stirring raw garbage. It was done. The agitating device of the garbage disposal of the present invention comprises a treatment layer for introducing garbage; a rotary shaft composed of a hollow body disposed in the treatment layer; fixed to the hollow rotary shaft, A hollow agitating body that is in communication with the hollow rotating shaft for agitating the garbage in the treatment tank by rotation; a means for supplying compressed air to the hollow rotating shaft; an air jet nozzle provided in the hollow agitating body; It is characterized by having.

According to this structure, since air can be jetted from the air jet nozzle provided in the hollow agitator while stirring the garbage, sufficient air can be provided around the microorganisms mixed with the garbage. You can

In order to heat the air ejected from the air ejection nozzle in a low temperature environment, at least one of the air hollow rotary shaft and the hollow agitator has the hollow agitator and the air in the agitator. It is preferable to provide a heater for heating the. Power can be supplied to the heater by providing a slip ring on the hollow rotating body. This heater not only warms the air supplied into the stirring tank, but also heats the hollow stirring body itself, so that it is possible to heat the raw dust that contacts the hollow stirring body and the entire stirring tank, which is more preferable. A processing environment can be realized.

The hollow stirrer can have various shapes.
For example, at its simplest it may consist of a hollow stirring arm extending radially from the hollow rotary shaft. Further, the hollow stirring body can also be composed of a hollow hollow spiral stirring blade concentric with the hollow rotating shaft, and a hollow connecting pipe connecting the hollow spiral stirring blade and the hollow rotating shaft.

Air may be jetted from the air jet nozzle of the hollow agitator at any time, but it is more effective if it is performed only when the hollow agitator is in the garbage (the probability is high). Therefore, in the case of a hollow stirring arm in the radial direction, a plurality of hollow stirring arms having different axial positions are provided at the same phase position in the rotation direction of the hollow rotating shaft, and in the case of a hollow spiral stirring blade, Air jet nozzles are provided at the same phase position in the rotation direction. Further, the hollow rotary shaft is provided with a switching valve for supplying compressed air into the hollow rotary shaft only when the air jet nozzle of the hollow stirring arm or the hollow spiral stirring blade is located in the lower specific section in the processing tank. If so, the air can be supplied more effectively.

In order to prevent raw dust or treated particles from entering the hollow agitator, it is preferable to provide the air ejection nozzle with a check valve that allows only the outflow of air from the hollow agitator side.

The hollow spiral agitating blades are provided with a pair of different directions at different axial positions, and the hollow rotating shaft has a pair of hollow spiral agitating blades that feed raw garbage in the processing tank. By rotating and driving the blade in the direction of moving it to the middle of the stirring blade, it is possible to simultaneously stir and move the garbage and supply air.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below with reference to illustrated embodiments. 1 to 6 show a first embodiment of the present invention. A processing tank (fixed drum) 12 is arranged in the machine frame 11, a charging lid 13 is provided on the upper portion of the processing tank 12, and a discharging lid 14 is provided from one side to the bottom. . The garbage and the microorganisms are introduced into the processing tank 12 by opening the input lid 13, and the granular material which has been decomposed by the microorganisms is discharged from the discharge lid 14. The processing tank 12 has a cylindrical wall 12a and both end walls 12b, and the outer surface of the cylindrical wall 12a is covered with a heat insulating material 15 in a substantially lower half thereof.

Inside the processing tank 12, a hollow rotary shaft 21 is located at the center of the processing tank 12. The hollow rotary shaft 21 is provided on the machine frame 11 outside the both end walls 12b.
It is rotatably supported by a bearing 22 fixed to. The hollow rotary shaft 21 is rotationally driven, for example, in the direction of arrow A in FIG. 1 via a motor with reduction gear 23 and a rotation transmission system 24 (FIG. 3).

The hollow rotary shaft 21 has a connecting pipe 25a extending in the radial direction, and the hollow rotary shaft 2 coaxial with the hollow rotary shaft 21.
1 is provided with a hollow stirring body 25 including a hollow spiral stirring blade 25b spirally extending around 1. Both the connecting pipe 25a and the hollow spiral stirring blade 25b are hollow and communicate with the hollow rotary shaft 21. The connecting pipe 25a has a circular cross section, and the hollow spiral stirring blade 25b has a rhombic shape with a flat cross section, as shown in FIG. 5, and is internally provided with an air pipe 25c communicating with the connecting pipe 25a. Air injection nozzles 26 are attached to the hollow spiral stirring blades 25b at the same phase position in the rotation direction of the hollow rotary shaft 21. The air injection nozzle 26 communicates with the air pipe 25c and ejects the air from the air pipe 25c into the processing tank 12. In this air injection nozzle 26,
A check valve 27 that allows the flow of air from the air pipe 25c into the processing tank 12 and blocks the reverse flow is provided.

A heater wire 31 is arranged in the hollow rotary shaft 21, the connecting pipe 25a, and the hollow spiral stirring blade 25b (air pipe 25c). The heater wire 31 is connected to an external power supply 33 via a slip ring 32 provided on the hollow rotary shaft 21, and is supplied with power via the slip ring 32 even while the hollow rotary shaft 21 is rotating.

The end of the hollow rotary shaft 21 has a switching valve 35.
Is connected to the compressed air source 34 via. The switching valve 35 supplies the air of the compressed air source 34 to the hollow rotary shaft 21 when the valve stem 36 is pressed, and the compressed air source 34 and the hollow rotary shaft 21 when the valve stem 36 projects. Break communication. The valve stem 36 is biased in the protruding direction. A cam follower 37 is provided at the tip of the valve stem 36, while an end face cam 38 that engages with the cam follower 37 is fixed to the hollow rotary shaft 21. The end face cam 38 is provided with a valve opening section A and a closing section B of approximately 180 ° each. In the section A, the cam follower 37 is opened and the switching valve 35 is closed, and in the section B, the cam follower 37 is pressed to press the valve stem 37. 36 is pushed in and the switching valve 35 is opened. As shown in FIG. 6, this open section A
Is an air injection nozzle 2 fixed to the hollow agitator 25.
6 corresponds to a section in which the lower half of the processing tank 12 moves, and the closed section B corresponds to a section in which the air injection nozzle 26 moves in the upper half of the processing tank 12.

The hollow agitator 25 is provided with a pair on both sides in the axial direction of the hollow rotary shaft 21, and the spiral directions of the hollow spiral stirring blades 25b are opposite to each other. The rotation direction A of the hollow rotary shaft 21 is the same as that of the pair of hollow stirring members 25.
Thus, the mixture of raw garbage and microorganisms in the processing tank 12 is set to move to the axial center of the processing tank 12.

The present apparatus having the above structure operates as follows.
It is assumed that a predetermined amount (less than half of the drum 12) of garbage and an appropriate amount of microorganisms are put into the processing tank 12. The hollow rotary shaft 21 is rotationally driven in the A direction via a motor 23 with a reduction gear and a rotation transmission system 24, and an external power source 33,
The heater wire 31 is energized via the slip ring 32.
Then, each time the hollow rotary shaft 21 makes one rotation, the end face cam 3
8, the switching valve 35 is opened and closed, and the hollow rotary shaft 2
Air from the compressed air source 34 is intermittently supplied into the unit 1. The compressed air is supplied into the hollow rotary shaft 21 when the air injection nozzle 26 moves in the substantially lower half of the processing tank 12, and when the air injection nozzle 26 moves in the substantially upper half of the processing tank 12. The compressed air is not supplied to the hollow rotary shaft 21. Since less than half of the amount of garbage and microorganisms is put in the treatment tank 12, the air jet nozzle 26
Most of the air is blown from the mixture of garbage and microorganisms.

On the other hand, the hollow rotary shaft 21 and the connecting pipe 25
a, since the heater wire 31 is inserted into the hollow spiral stirring blade 25b (air pipe 25c), the hollow rotation without the outlet is achieved especially when the air injection nozzle 26 is in the substantially upper half of the processing tank 12. The air in the shaft 21 and the hollow agitator 25 is heated by the heater wire 31. That is, during one rotation of the hollow rotary shaft 21, while the air injection nozzle 26 moves in the substantially upper half of the processing tank 12, the air in the hollow rotary shaft 21 and the hollow agitator 25 is heated, and the air injection nozzle 26
A cycle in which the heated air is ejected from the air injection nozzle 26 into the garbage and the microorganisms while the air moves in the substantially lower half of the processing tank 12 is achieved. The hollow agitator 25 is
Since it has a basic function of agitating a mixture of raw garbage and microorganisms, heated compressed air is supplied into the agitated material, which provides an ideal environment for microorganisms that decompose raw garbage. be able to. Also, the heater wire 31
Since the hollow stirrer 25 itself is also heated, the raw garbage in contact with the hollow stirrer 25 is also heated, and the entire treatment tank 12 is further heated via the warmed raw garbage. A preferable processing environment can be realized.

The ratio of the open section A and the closed section B of the end face cam 38 can be appropriately changed. In a high temperature environment, it is possible to stop energizing the heater wire 31, or to omit the installation of the heater wire 31, the slip ring 32, and the external power supply 33, but at 15 ° C ± 15 throughout the year.
In a Japanese temperature environment where there is a temperature change of about °, it is preferable to install these.

FIG. 7 shows another embodiment of the present invention. In this embodiment, a stirring member 29 is provided on the hollow rotary shaft 21 in the radial direction thereof. This stirring member 29 is a hollow stirring arm 29 made of a hollow pipe communicating with the hollow rotating shaft 21.
The hollow stirring arm 29A and the solid stirring arm 29B are provided with the same phase in the rotation direction of the hollow rotary shaft 21 by making the phases different by 180 °. Has been. The hollow agitating arm 29A is provided with the air injection nozzle 26. Hollow rotating shaft 21 and hollow stirring arm 29
A heater wire 31 is arranged in A. Also in this embodiment, the timing of supplying and stopping the supply of compressed air to the hollow rotary shaft 21 is the same as in the first embodiment, when the air injection nozzle 26 is located in the substantially lower half of the processing tank 12. It is preferable that the air is supplied and the air supply is stopped when the air is located in the substantially lower half. However, in the present invention, the compressed air may be constantly ejected from the air ejection nozzle 26 while the hollow rotary shaft 21 is rotating.

[0021]

According to the present invention, since fresh air can be supplied into a mixture of raw garbage and microorganisms while being stirred, decomposition of raw garbage by microorganisms can be promoted. Further, by disposing a heater on the hollow rotating shaft and the hollow agitator, it is possible to supply heated jet air into the raw dust and also to heat the raw dust and the treatment layer through the hollow agitator. Therefore, a more preferable effect of decomposing food waste by microorganisms can be obtained.

[Brief description of drawings]

FIG. 1 is a perspective view of a main part of a rotating portion showing an embodiment of a stirring device for a garbage disposal according to the present invention.

FIG. 2 is a front view of the same.

FIG. 3 is a vertical sectional view of the same.

FIG. 4 is a side sectional view of the same.

FIG. 5 is a cross-sectional view of an outlet nozzle portion.

FIG. 6 is a diagram showing an example of an open section and a closed section of a switching valve that supplies compressed air to a hollow rotary shaft.

FIG. 7 is a perspective view corresponding to FIG. 1, showing another embodiment of the present invention.

[Explanation of symbols]

 11 Machine Frame 12 Processing Tank (Fixed Drum) 21 Hollow Rotating Shaft 23 Motor with Reducer 25 Hollow Stirring Body 25a Connection Pipe 25b Hollow Spiral Stirring Blade 26 Air Injection Nozzle 27 Check Valve 29 Stirring Body 29A Hollow Stirring Arm 29B Solid Stirring Arm 31 heater wire 32 slip ring 33 external power supply 34 compressed air source 35 switching valve 36 valve stem 37 cam follower 38 end face cam A switching valve open section B switching valve closed section

Claims (9)

[Claims] 1. A treatment layer into which raw garbage is added; a rotary shaft made of a hollow body arranged in the treatment layer; fixed to the hollow rotary shaft, and the raw dust in the treatment tank is rotated by the rotation of the hollow rotary shaft. A hollow stirrer that is in communication with the hollow rotating shaft;
A stirrer for a garbage disposal, comprising: a means for supplying compressed air to the hollow rotary shaft; and an air jet nozzle provided in the stirrer. 2. The garbage treatment according to claim 1, wherein at least one of the hollow rotating shaft and the hollow stirring body is provided with a heater for heating the hollow stirring body and the air in the stirring body. Stirring device. 3. The stirrer according to claim 1, wherein the hollow stirrer is a plurality of hollow stirrer arms extending in a radial direction from a hollow rotary shaft. 4. The agitating device for a garbage disposal according to claim 3, wherein the plurality of hollow agitating arms having different axial positions are provided at the same phase position in the rotational direction of the hollow rotary shaft. 5. The hollow stirrer according to claim 1 or 2, comprising a hollow spiral stirring blade concentric with the hollow rotating shaft, and a hollow connecting pipe connecting the hollow spiral stirring blade and the hollow rotating shaft. Stirrer of the garbage processing machine that is used. 6. The stirrer of claim 5, wherein the hollow spiral stirring blade is provided with an air jet nozzle at the same phase position in the rotation direction of the hollow rotary shaft. 7. The hollow rotary shaft according to claim 4, wherein the hollow rotary shaft is provided in the hollow rotary shaft only when the air jet nozzle of the hollow stirring arm or the hollow spiral stirring blade is located in a specific lower section of the treatment tank. An agitator for garbage processing machines equipped with a switching valve that supplies compressed air. 8. The hollow spiral stirring blade according to claim 5 or 6, wherein a pair of hollow spiral stirring blades having different directions are provided with different axial positions, and the hollow rotating shaft has a pair of hollow spiral stirring blades,
A stirrer for a garbage disposer, which is rotationally driven in a direction to move the garbage in the treatment tank to the middle of the pair of hollow spiral stirring blades. 9. The stirrer for a food waste disposer according to claim 1, wherein the air jet nozzle is provided with a check valve that allows only the outflow of air from the hollow stirrer side.