JPH10290970A - Garbage treatment device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the deposition of garbage treating materials in the parts of a moisture content sensor and to measure an exact moisture content. SOLUTION: The garbage treating materials 10 packed into a garbage treatment vessel 1 are agitated by rotationally driving an agitating means 16 disposed in the garbage treatment vessel 1, by which the charged into the garbage treatment vessel 1 is subjected to a decomposition treatment. The moisture content sensor 18 inserted with a sensor body is arranged in a blind cylindrical casing 18a in such a manner that the casing 18a projects inward to the inside surface of the side wall 5 of the garbage treatment vessel 1. The projecting direction of a mounting flange 1b projectingly disposed in the direction opposite to the outer periphery of the casing 18a is directed orghogonally with the direction where agitating vanes 16b rotate. The flange is fixed to the side wall 5 by driving screws 19 from the mounting flange 18b. The screw head 19a of the screw 19 and the lining direction of the casing 18a are set in the direction orthogonal with the direction where the agitating vanes 16b rotate.

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 garbage using the power of microorganisms.

[0002]

2. Description of the Related Art Conventionally, sludge containing organic matter and water has been decomposed (fermented) using microorganisms so as not to affect the environment. Are known. In this garbage processing apparatus, a wood trash called a biochip is filled in a garbage processing tank as a garbage processing material. The garbage is introduced into the garbage processing tank from an input port provided in the garbage processing tank, and the garbage is fermented by the action of microorganisms living in the garbage processing material to be decomposed. A stirring means for stirring the garbage processing material is provided in the garbage processing tank, and the stirring means 16 is provided with a stirring shaft 16a provided between the side walls 5 on both sides of the garbage processing tank 1 as shown in FIG. And a stirring blade 16 protruding from the stirring shaft 16a in a direction orthogonal to the axial direction of the stirring shaft 16a.
b. A moisture content sensor 18 is provided on the inner surface of the side wall 5 to detect the moisture content of the garbage disposal material. The moisture content sensor 18 is provided with a sensor body inside a bottomed cylindrical casing 18a and a casing 18a.
And mounting flanges 18b project in opposite directions from both sides. And this moisture content sensor 18
When the mounting flange 18b is mounted on the side wall 5, the mounting flange 18b is arranged so that the projecting direction thereof is oriented in the rotation direction of the stirring blade 16b, and a screw 19 is screwed into the side wall 5 from the mounting flange 18b and mounted. The screw heads 19a are positioned so as to be arranged in the rotation direction of the stirring blade 16b.

[0003]

However, in the case of the above conventional example, when the moisture content sensor 18 is attached, the side wall 5
The casing 18a and the screw head 19a protrude from the inner surface of the agitator. However, since the casing 18a and the two screw heads 19a are arranged in the rotation direction of the stirring blade 16b, when the stirring shaft 16a is rotationally driven to stir, FIG. As shown in the figure, the garbage disposal material 10 accumulates at the valley between the casing 18a and the screw head 19a as shown by the symbol a, and this swells to accumulate the garbage disposal material 10 as shown by the symbol b. Easy to happen. However, when the garbage processing material 10 is deposited in this way, there is a problem that the water content sensor 18 cannot accurately measure the water content.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and is intended to prevent the accumulation of garbage disposal material on the moisture content sensor portion so that the moisture content can be accurately measured. The task is to

[0005]

In order to solve the above-mentioned problems, a garbage disposal apparatus according to the present invention drives a stirring means 16 provided in the garbage disposal tank 1 to rotate the garbage disposal tank 1 into the garbage disposal tank 1. A garbage thrown into the garbage disposal tank 1 is decomposed by stirring the filled garbage disposal material 10, and the stirring means 16 is rotated between the side walls 5 of the garbage disposal tank 1. The sensor main body 20 is provided inside a bottomed cylindrical casing 18a, which comprises a free stirring shaft 16a and stirring blades 16b projecting from the stirring shaft 16a so as to be substantially perpendicular to the axial direction of the stirring shaft 16a. The moisture content sensor 18 is attached to the casing 18 on the inner surface of the side wall 5 of the garbage disposal tank 1.
a projecting inward from the outer periphery of the casing 18a and projecting in opposite directions from the outer periphery of the casing 18a.
The projecting direction of the screw 19 is set to be perpendicular to the direction in which the stirring blade 16b rotates, and a screw 19 is driven into the side wall 5 from the mounting flange 18b and fixed, and the screw head 19a of the screw 19 and the casing 18a are aligned. The stirring blade 16b
Is characterized by a direction orthogonal to the direction of rotation. When rotating the stirring shaft 16a and stirring with the stirring blade 16b, even if the casing 18a and the screw head 19a protrude from the inner surface side of the side wall 5, they are arranged in a direction orthogonal to the rotation direction of the stirring blade 16b. The garbage processing material 10 does not accumulate in the valley between the casing 18a and the screw head 19a, and the water content can be accurately measured by the water content sensor 18.

It is also preferable that the distance between the water content sensor 18 and the stirring blade 16b closest to the water content sensor 18 is 4 mm or more. By providing an interval of 4 mm or more between the stirring blade 16b and the moisture content sensor 18, the garbage disposal material 10 can be further prevented from being deposited.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on embodiments shown in the accompanying drawings. FIG. 3 shows a garbage processing apparatus 1
3 is a perspective view showing the entirety of FIG. Garbage disposal device 1
A garbage disposal tank 1 having an upper opening is provided inside a case 22 having an upper opening, and a stirring means 16 is rotatably provided in the garbage processing tank 1.

The stirring means 16 is constituted by providing a stirring shaft 16a having a hollow pipe shape with stirring blades 16b protruding in a direction substantially perpendicular to the axial direction of the stirring shaft 16a. It is rotatably supported by bearing portions 23 provided on both side walls 5 of the processing tank 1. Here, at least one end of the stirring shaft 16a protrudes outside the side wall 5 of the garbage processing tank 1, and has a length in which the sprocket 24 is provided on the protruding portion of the stirring shaft 16a outside as shown in FIG. The short sprocket connecting shaft 25 is fitted and attached with a fixing tool such as a bolt 80. In this way, the stirring shaft 16a provided with the stirring blades 16b can be moved from inside the garbage processing tank 1 to the bearing portion 2 without being disturbed by the sprocket 24.
3, the sprocket 24 can be attached to the end of the stirring shaft 16a, and only the stirring shaft 16a is located in the garbage processing tank 1 so that the stirring shaft 16a and the sprocket connection shaft 25 are connected. Since the fitting joint is not located in the garbage processing tank 1, only the stirring shaft 16a provided with the stirring blade 16b located in the garbage processing tank 1 need only be formed of a corrosion-resistant material, and the sprocket 24 is provided. The sprocket connecting shaft 25 need not necessarily be formed of a corrosion-resistant material. In this example, the number of the stirring blades 16b is three. The stirring blades 16b are located at substantially the center and both ends in the longitudinal direction of the stirring shaft 16a, and the protruding directions of the stirring blades 16b are shifted by about 120 ° in the circumferential direction. I have.

A motor 17 is mounted on the bottom plate 22a of the case 22, and a chain 26 is wound around a sprocket provided on the output shaft of the motor 17 and a sprocket 24 provided on the stirring means 16, so that the motor 17 is The forward rotation rotates the stirring means 16 forward, and the reverse rotation of the motor 17 reverses the stirring means 16.
The garbage processing material 10 in the garbage processing tank 1 is stirred by the rotation of the garbage, and air is evenly supplied to each part in the garbage processing tank 1 and the garbage is filled in the garbage processing tank 1. The garbage thrown into the material 10 is evenly dispersed and mixed. The control of the rotation of the stirring means 16 is controlled by the control unit 21. The control unit 21 is provided on an upper part of the case 22.

A surface heater 51 is attached to the lower outer surface of the garbage disposal tank 1. The surface heater 51 is for heating the garbage processing material 10 filled in the garbage processing tank 1, and is heated by the surface heater 51 when the temperature of the garbage processing material 10 is low. . The surface heater 51 is controlled by a signal from the control unit 21.

As shown in FIG. 2, a garbage disposal material 10 made of a carrier such as sawdust-like woody chips called a biochip in which microorganisms inhabit is placed in the garbage disposal tank 1 as shown in FIG. As the garbage disposal material 10, for example, a conventionally known woody strip (for example, Japanese Patent Publication No. 30760/1990) can be used. A moisture content sensor 18 is provided inside the garbage processing tank 1.
The moisture content sensor 18 is attached to the inner surface of the side wall 5 of the garbage processing tank 1. As shown in FIG. 2, the moisture content sensor 18 is formed by mounting a sensor body 20 inside a bottomed cylindrical casing 18a, and has a mounting flange 18b protruding in opposite directions from both sides of the casing 18a. It is protruding. The sensor body 20 includes a heating resistor 20 a and a thermistor 20.
b, and these are housed inside the casing 18a and sealed with the sealing resin 20c. The moisture content sensor 18 measures the resistance applied to the thermistor 20b to determine the temperature of the moisture content sensor 18 (casing 1).
8a) can be measured. Further, when the heating resistor 20a is energized, it generates heat, and the moisture content sensor 1
The temperature in 8 rises, and the water content can be detected by measuring the time change of this temperature rise. When the water content sensor 18 is mounted on the side wall 5, the water content sensor 18 is disposed so that the mounting flange 18b projects in a direction orthogonal to the rotation direction of the stirring blade 5 as shown in FIG. From screw 19
Is inserted into the side wall 5 so that the moisture content sensor 18 is attached. When the moisture content sensor 18 is attached in this manner, the casing 18a and a pair of screw heads 19a protruding from the inner surface of the side wall 5 are arranged in a direction orthogonal to the rotation direction of the stirring blade 5, and the stirring shaft 16a is rotationally driven to rotate the stirring blade 16a. 16b
The garbage disposal material 10 is
And depositing through the valley between the screw head 19a and the screw head 19a hardly occurs. Therefore, the water content sensor 18 can accurately measure the water content. The distance between the moisture content sensor 18 and the stirring blade 16b closest to the moisture content sensor 18 is set to be 4 mm or more. This interval is 4mm
In the following, there is a possibility that the garbage processing material 10 is deposited.

The output signal of the moisture content sensor 18 is input to the control unit 21. The moisture content sensor 18 determines the moisture content of the garbage disposal material 10 in the garbage disposal tank 1. The control unit 21 controls a fan 34 described later.
And the operation control of the surface heater 51 and the stirring means 16. In addition, the garbage processing tank 1 is located above the garbage processing tank 1.
An auxiliary heater 30 for heating the air inside is provided, and the auxiliary heater 30 heats the air in the space above the garbage processing tank 1.

An upper cover 22 constituting the upper part of the case 22
The opening of b is an input port 14, and this input port 14
Is provided with a lid 27 for throwing garbage, which can be opened and closed by rotating around a shaft attachment portion at the rear end. An intake port 6 and an exhaust port 7 are provided at the upper end of the side wall 5 of the garbage processing tank 1. As shown in FIGS. 4 and 7, a hanging piece 3 is provided inside the upper end portion of the side wall 5 of the garbage processing tank 1 via a small gap 4. 1 side wall 5
The intake port 6 and the exhaust port 7 provided at the upper end portion are hidden. A small gap 4 formed between the side wall 5 and the hanging piece 3 of the garbage processing tank 1 is open downward and communicates with the garbage processing tank 1.

An intake path 28 is provided between the case 22 and the garbage disposal tank 1. One end of the intake path 28 communicates with the outside air intake provided in the bottom plate 22 a of the case 22, and the other end has a side wall 5
Is communicated with an intake port 6 provided at the upper end of the. Further, an exhaust passage 40 is formed between the case 22 and the garbage processing tank 1. One end of a duct 44 constituting the exhaust passage 40 is connected to an exhaust port 7 provided at the upper end of the garbage processing tank 1, and a fan is connected to one end of the duct 44 connected to the exhaust port 7. 34 are provided. Fan 3 at one end
As shown in FIG. 6, the deodorizing device 2 is disposed in the middle of the duct 44 provided with 4, and the dilution chamber 36 is connected to the other end of the duct 44.

An exhaust port 7 provided at the upper end of the garbage disposal tank 1
At the entrance (upstream of the fan 34), a filter mounting portion 8 is provided. An access port 9 communicating with the filter mounting portion 8 is provided at an upper portion of the case 22, and the filter 11 is attached to the filter mounting portion 8 through the access port 9 so that the filter 11 can be freely inserted and removed. Garbage disposal material 1 accumulated in filter mounting portion 8 at the lower end of filter mounting portion 8
An opening 12 for returning a garbage disposal material for discharging 0 into the garbage disposal tank 1 is provided.

As shown in FIG. 6, a return inlet 45 at one end of the return branch passage is in branch communication between the fan 34 of the duct 44 and the deodorizing apparatus 2, and the other end of the return branch passage is connected to the return branch passage. A part of the exhaust gas sent from the fan 34 to the duct 44 is communicated with the return outlet opening at the upper end of the side wall 5 of the garbage processing tank 1, and a part of the exhaust is sent to the garbage processing tank 1 through the return branch path. In this way, a part of the warm exhaust gas is returned to the garbage processing tank 1 by returning a part of the exhaust gas to the garbage processing tank 1 through the return branch passage. And the air in the garbage processing tank 1 can be stirred,
The air in the garbage disposal tank 1 does not become cold when the exhaust is performed by operating the fan 34, so that effective garbage disposal can be performed.

The deodorizing device 2 has a substantially U-shaped heater 32 disposed in an upper portion of a deodorizing case 47, and a flow dividing means 39 provided in the substantially U-shaped heater 32. The gas supplied from the inlet above the 47 is diverted to both sides by the diverting means 39, and the gas substantially uniformly hits the entire U-shaped heater 32, so that the gas is uniformly heated as a whole. ing. The catalyst 31 is arranged below the heater 32. The catalyst 31 forms a honeycomb body 31a with ceramic, and the honeycomb body 31a
Is formed by evaporating platinum as the catalyst 31 on the surface of the substrate. That is, when the gas containing the odor heated by the heater 32 passes through the honeycomb body 31a, the gas is deodorized by the heated catalyst 31 made of platinum.

A dilution fan 35 is provided in the dilution chamber 36, and an outside air inlet 50 for sucking outside air is provided on the lower surface of the rear part of the dilution chamber 36. The outside air inlet 50 is connected to the bottom plate 22 a of the case 22. In the embodiment, the lower surface of the dilution chamber 36 is constituted by the bottom plate 22a, so that the bottom plate 22a is provided with an outside air inlet 50. Bottom plate 2
2a is provided with a leg 22c on the lower surface thereof.
The outside air can be taken in from the outside air inlet 50 provided at a. Further, an outlet 42 is provided at the front of the dilution chamber 36. Then, by operating the dilution fan 35, the outside air is taken in from the outside air inlet 50, the high-temperature gas passing through the catalyst 31 is diluted in the dilution chamber 36, the temperature is reduced, and the air is exhausted to the outside from the outlet 42. Has become.

A temperature detecting element 37 for detecting the temperature of the catalyst is provided slightly below the lower catalyst 31 in the deodorizing case 47, and the controller 21 controls the heater 32 based on the temperature detected by the temperature detecting element 37. Is controlled so that the temperature of the catalyst 31 becomes a design value. In this case, output control to the heater 32 is further performed in accordance with the outside air temperature, temperature fluctuation in the garbage processing tank 1, and air flow fluctuation.

When an abnormal temperature is detected by the temperature detecting element 37, an error is notified by a notifying means, and the heater 32 and the fan 34 are controlled to be turned off. Here, if the abnormal temperature is detected, the heater 32 or the fan 34 is not turned off immediately, but the air volume of the fan 34 is increased. If the temperature detecting element 37 still detects the abnormal temperature, the heater 32 or the fan 34 is turned off. It is to be. The deodorizing case 47 is provided with a thermal fuse 49 in the heater 32. The thermal fuse 4 is used when the fan 34 stops during the deodorizing operation or when the output of the heater 32 is abnormal.
9 is blown, and the thermal fuse 49 is blown at 390 ° C., for example. In addition, dilution chamber 3
An outside air temperature detecting element 38 is provided before or after the dilution fan 35 in the inside 6 to detect the temperature of the outside air sucked from the outside air inlet 50. When the outside air temperature is low, the auxiliary heater 30 is turned on. Control (when the outside air temperature is low, the auxiliary heater 30 is turned on,
0), the air flow of the fan 34 is controlled (when the outside air temperature is low, the blown air amount is reduced), and when the outside air temperature detecting element 38 detects an abnormal temperature, there is an abnormal temperature rise. In the deodorizing operation, the dilution fan 35 is stopped for some reason, or the blowout port 42 and the like are regarded as being closed, and the deodorizing operation is controlled to be stopped.

In the garbage processing apparatus 13 configured as described above, when garbage is put into the garbage processing tank 1, the stirring means 16 is rotated to mix the garbage with the garbage processing material. Then, the garbage is decomposed by the action of microorganisms living in the garbage disposal material. By operating the fan 34, exhaust such as moisture and gas generated by the garbage processing in the garbage processing tank 1 is exhausted to the outside through the exhaust passage 40, and at the same time, the fan 34 is operated and exhausted. At the same time, the outside air passes through the intake path 28 and
Is supplied into the garbage processing tank 1, whereby fresh oxygen is supplied to the garbage processing material 10, thereby activating the action of microorganisms. At this time, the surface heater 5
By heating 1, the temperature of the garbage processing material 10 in the garbage processing tank 1 is controlled to be an optimum garbage processing temperature.

The operation of the fan 34 includes both a deodorizing operation and a deodorizing operation. When the deodorizing operation is performed by the deodorizing device 2, the above-described fan 34, heater 32,
The deodorizing operation is performed by turning on the dilution fan 35 and the auxiliary heater 30, and exhaust containing odor is sent from the exhaust port 7 to the exhaust passage 40. Thereby, outside air is sucked into the garbage disposal tank 1 from the intake port 6. Then, a part of the exhaust gas containing the odor sent to the exhaust passage 40 (in the embodiment, half of the exhaust gas sent to the exhaust passage 40) is returned to the garbage processing tank 1 again through the return branch passage. The gas in the upper space in the garbage processing tank 1 is agitated, so that the outside air flowing into the upper space in the garbage processing tank 1 from the intake port 6 does not short-pass to the exhaust port 7, A part of the exhaust gas having a relatively high temperature is returned, mixed and agitated, and air is supplied to the garbage processing material 10 filled in the garbage processing tank 1.

On the other hand, during the exhaust containing the odor sent to the exhaust passage 40, the other exhaust (except for a part of the exhaust sent to the exhaust passage 40 in the embodiment) except for a part flowing toward the return branch passage. Flows into the deodorizing device 2 and is almost equally applied to the whole of the substantially U-shaped heater 32 which is divided by the dividing means 39, so that the exhaust gas is heated uniformly as a whole. Then, the heated exhaust gas passes through the honeycomb body 31a and comes into contact with the catalyst 31 made of platinum deposited on the surface of the honeycomb body 31a. Here, the catalyst 31 made of platinum is heated, and the odor in the exhaust gas is deodorized. Then, the high-temperature exhaust gas deodorized by the catalyst flows into the dilution chamber 36, where it is diluted and cooled to a low temperature from the outlet 42 and discharged to the outside. FIG. 8 is a control block diagram of the present invention. By operating the deodorizing switch 61 provided on the operation unit 60, it is possible to switch between the deodorizing operation mode and the deodorizing operation mode.

[0024]

According to the first aspect of the present invention, a moisture content sensor having a sensor main body inside a bottomed cylindrical casing is provided so that the casing projects inward on the inner surface of the side wall of the garbage disposal tank. It is arranged, the projecting direction of the mounting flange projecting in the opposite direction from the outer periphery of the casing is set to the direction orthogonal to the direction in which the stirring blade rotates, and a screw is driven into the side wall from the mounting flange and fixed. The direction in which the screw head and the casing are aligned is orthogonal to the direction in which the stirring blade rotates, so that when the stirring shaft is rotated and the stirring is performed by the stirring blade, the casing or screw head protrudes from the inner surface of the side wall. Even though these are lined up in a direction perpendicular to the rotation direction of the stirring blades, no garbage disposal material is deposited on the valley between the casing and the screw head, and the water content sensor Water measurement is one that can be accurate.

According to the invention of claim 2 of the present invention, the distance between the water content sensor and the stirring blade closest to the water content sensor is 4 mm or more, so that the distance between the stirring blade and the water content sensor is 4 mm or more. By providing an interval, it is possible to further prevent the garbage processing material from being deposited.

[Brief description of the drawings]

FIG. 1 is a side view showing a main part of an example of an embodiment of the present invention.

FIG. 2 is a sectional view of the moisture content sensor according to the first embodiment;

FIG. 3 is a partially omitted schematic perspective view showing the whole of the same.

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

FIG. 5 is a side sectional view of the same.

FIG. 6 is a schematic configuration diagram of the above deodorizing apparatus.

FIG. 7 is an enlarged cross-sectional view of a suction port portion of the above.

FIG. 8 is a control block diagram of the above.

FIG. 9 is a side view illustrating a conventional example.

FIG. 10 is an explanatory diagram for explaining a problem of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Garbage processing tank 5 Side wall 10 Garbage processing material 16 Stirrer 16a Stirrer shaft 16b Stirrer blade 18 Water content sensor 18a Casing 18b Mounting flange 19 Screw 19a Screw head 20 Sensor main body

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kazumasa Rokushima 1048 Kadoma Kadoma, Osaka Prefecture Matsushita Electric Works Co., Ltd. (72) Inventor Hideo Fujimoto 1048 Kadoma Kadoma, Kadoma City, Osaka Prefecture Inside Matsushita Electric Works Co., Ltd. (72) Inventor Takashi Hyodo 1048 Kadoma Odoma, Kadoma City, Osaka Pref. 1048 Kadoma, Kadoma, Fumonma-shi Matsushita Electric Works, Ltd.

Claims (2)

[Claims] Claims 1. A garbage thrown into a garbage processing tank is decomposed by rotating a stirring means provided in the garbage processing tank to stir the garbage processing material filled in the garbage processing tank. In the garbage processing apparatus, a rotatable stirring shaft is provided between the side walls of the garbage processing tank, and a stirrer is provided to project from the stirring shaft so as to be substantially perpendicular to the axial direction of the stirring shaft. A moisture content sensor composed of blades and having a sensor body inside a bottomed cylindrical casing is arranged so that the casing protrudes inward on the inner surface of the side wall of the garbage disposal tank, and is opposed to the outer periphery of the casing. The mounting flange protruding in the direction is oriented perpendicular to the direction in which the stirring blade rotates, and a screw is driven into the side wall from the mounting flange and fixed, and the screw head of the screw and the casing are aligned in the same direction. Stirring A garbage disposal apparatus characterized in that the direction is orthogonal to the direction in which the blades rotate. 2. The garbage disposal apparatus according to claim 1, wherein the distance between the moisture content sensor and the stirring blade closest to the moisture content sensor is 4 mm or more.