JP2001121116A - Organic matter treating apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an organic matter treating apparatus capable of detecting a moisture content inside a treating tank without exposing a moisture content sensor inside the treating tank. SOLUTION: This apparatus is provided with the treating tank 1 for housing the carrier of microbes for decomposing organic matters and decomposing the fed organic matters such as garbage, an agitating body (agitating blade 6 and agitating shaft 7) for agitating and mixing the organic matters fed into the treating tank 1 and the housed carrier, a driving mechanism (motor for agitation and reduction mechanism 11) for driving the agitating body, a frame 13 for attaching the driving mechanism, a fixing member 14 attached to the inner surface side of the treating tank 1 so as to fix the frame 13 to the outer surface side of the treating tank 1 and the moisture content sensor 15 of a heat capacity type equipped inside the fixing member 14 for detecting the moisture content inside the treating tank 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an organic substance processing apparatus for decomposing organic substances such as garbage by a microbial decomposition processing method.

[0002]

2. Description of the Related Art An organic matter processing apparatus of this type stores a carrier of microorganisms that decompose organic matter (such as wood chips such as sawdust) in a treatment tank, and removes organic matter such as food waste. Decomposition treatment is performed by microorganisms cultured on a carrier. In order to maintain the environment inside the treatment tank suitable for the activation of microorganisms that decompose organic substances, it is necessary to control the temperature, agitation, ventilation, etc. in the tank and adjust the water content of the microorganism carrier mixed with organic substances to an appropriate value. Need to be kept.

[0003] For that purpose, a water content detecting means for detecting the water content of the microorganism carrier mixed with the organic matter is required.
JP-A-8-178879 (G01N 25/5)
There is known a device provided with a moisture content sensor for detecting the moisture content of a garbage treatment material (microorganism carrier) in a treatment tank as disclosed in 6).

[0004] The above-mentioned moisture content sensor is provided with a heat generating means and a heat generating means on the back side of a casing formed of a good heat conductive material (stainless steel, copper, aluminum, etc.) in contact with the garbage disposal material. And a temperature sensor for detecting the temperature rise of the casing is fixed, and the heat generating means and the temperature sensor are molded with a molding material on the back side of the casing.

[0005] The water content sensor has a heat capacity type, that is, the heat capacity of the garbage processing material changes according to the water content. When the water content is low (the heat capacity is small), the temperature tends to rise, and the water content is high (the heat capacity). When the temperature is large, the characteristic that the temperature does not easily rise is used, and the heat generation means is energized for a certain period of time to detect the moisture content of the microorganism carrier mixed with garbage by the difference in the temperature rise value obtained from the temperature sensor. Things.

[0006]

However, in the technique disclosed in the above publication, the moisture content sensor is exposed in the treatment tank and is in direct contact with the microorganism carrier mixed with garbage. Garbage and carrier adhere to the part and the inner wall of the processing tank around it and tend to stick, and when scraping it off with a trowel, the sensor is damaged or the moisture content sensor is erroneously detected by the sticking carrier. was there.

Accordingly, the present invention has been made to solve such a problem, and an organic substance processing apparatus capable of detecting a water content in a processing tank without exposing a water content sensor to the processing tank. The purpose is to provide.

[0008]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, the present invention relates to a treatment tank containing a carrier of microorganisms for decomposing organic substances and decomposing organic substances such as garbage to be introduced. A stirrer that stirs and mixes the organic substance charged into the processing tank and the carrier contained therein, a drive mechanism for driving the stirrer, a frame to which the drive mechanism is attached, and an outer surface of the processing tank. A fixing member attached to the inner surface side of the processing tank for fixing to the side, and a heat capacity type water content sensor for detecting the water content in the processing tank, which is provided inside the fixing member, Is what you do.

[0009] The present invention is also characterized in that a water content adjusting means for adjusting the water content in the processing tank based on the detection result of the water content sensor is provided.

[0010] Further, the fixing member is formed with a bearing of the stirring member.

Further, the fixing member is made of Duracon resin.

Further, the back side of the moisture content sensor is covered with a heat insulating material.

Further, the back side of the moisture content sensor is covered with a member reflecting heat generated from the moisture content sensor.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG.
This will be described in detail with reference to FIGS.

In this organic matter treatment apparatus, a processing tank 1 having an upper surface opening for storing a carrier of microorganisms (woody fragments such as sawdust) and into which organic matter such as garbage is charged is provided in an outer case 2 comprising upper and lower parts. It is configured to be accommodated in.

The upper surface of the outer case 2 is opened corresponding to the upper surface opening 3 of the processing tank 1, and an input port 4 for inputting microbial carriers, garbage and the like is formed. , A lid 5 configured to be openable and closable by a hinge or the like is provided.

In the processing tank 1, a stirring shaft 7 having a plurality of stirring blades 6 is provided between the front and rear walls so as to be rotatable forward and backward. The stirring shaft 7 is supported at both ends by bearings 8 and 9 formed on the front and rear walls of the processing tank 1, and the shaft end 10 on the rear wall side has a large gear 11a and a middle gear 1 as shown in FIG.
1b, small gear 11c and large pulley 11d, small pulley 11
The rotation of the agitating motor 12 is reduced and transmitted to the agitating motor 12 which is driven forward and reverse through a speed reduction mechanism 11 made of e, and is driven forward and reverse.

The medium gear 11b, the small gear 11c, and the large pulley 11 which constitute the stirring motor 12 and the speed reduction mechanism 11 are described.
The components d and the like are attached to a metal frame 13 fixed to the outer surface of the rear wall of the processing tank 1. As shown in FIGS. 1 to 3, the drive mechanism mounting frame 13 is attached to a frustoconical mounting member 14 arranged on the inner surface side of the processing tank 1.
It is fixed by screwing from the 3 side.

As described above, the driving mechanism mounting frame 1
By fixing 3, the distance between the rear wall of the processing tank 1 and the rear wall of the outer case 2 is smaller than that of a general mounting method in which a boss is protruded from the outer surface of the rear wall of the processing tank 1 and screwed. The size of the processing tank 1 can be increased with respect to the depth of the apparatus. The screw can be screwed from the inside of the treatment tank 1. However, if screwed from the inside, garbage and carrier are liable to stick to the screw head, and it is difficult to attach and remove with screws from the inside. In the embodiment, since the screws are screwed from the outside, the above-described problem does not occur.

In the center of the fixing member 14, a bearing 9 on the rear wall side is formed. This fixing member 14
It is made of Duracon resin which has excellent abrasion resistance, good slip and good thermal conductivity. Therefore, while sufficiently functioning as a bearing, the surface of the fixing member 14 is free from sticking of microbial carriers and garbage, etc.
Heat generated from the water content sensor 15 described below is easily transmitted to the inside of the processing tank 1.

A water content sensor 15 is provided in the fixing member 14 so as to be located below the bearing 9. As shown in an enlarged view in FIG. 2, the moisture content sensor 15 has a sponge 17 made of foamed silicon or the like between the heating element 16 and a heating element 16 having a plurality of chip resistors arranged on an aluminum substrate, for example. And the thermistor 18 is arranged with the interposition of the thermistor 18. By interposing a sponge 17 made of foamed silicon or the like between the heating element 16 and the thermistor 18, the heat of the heating element 16 is not directly transmitted to the thermistor 18 and the thermistor 18 is fixed to the fixing member 14.
It is configured so as to be in close contact with the back side of.

The water content sensor mounting surface of the fixing member 14 is formed to be thinner than the other so that the radiant heat from the heating element 16 can be more easily transmitted to the inside of the processing tank 1, and the water content except for the mounting surface side. The periphery of the sensor 15 is covered with a sensor cover 19 made of a resin having heat insulation such as polypropylene. Further, the back side is covered with a reflection member 20 such as an aluminum foil and a heat insulating material 21 such as a foamed resin or glass wool. The reflecting member 20 is mainly for preventing the radiant heat of the heating element 16 from escaping to the outside.
Numeral 1 is provided to prevent the heat generated by the drive mechanism transmitted mainly through the metal frame 13 and the influence of the outside air temperature.
With the configuration described above, heat can be efficiently transmitted into the processing tank 1 and an accurate water content can be detected.

On the other hand, as shown in FIGS. 1 and 4, on the upper side of the speed reduction mechanism 11, a control board 30 on which a control unit such as a microcomputer is mounted is attached.
Each unit of the present apparatus is controlled by a control unit mounted on the control board 30.

Further, sheet heaters 31, 31 are mounted on the upper and lower outer surfaces of the front wall and both side walls of the processing tank 1, and the control unit uses a thermistor (not shown) built in the sheet heater 31 to perform processing. The inside of the tank 1 is controlled so as to be maintained within a temperature range suitable for activating the microorganisms (about 40 ° C. to 60 ° C.).

An exhaust hole 33 in which an exhaust filter 32 is mounted is formed in the upper rear wall of the processing tank 1, and an exhaust fan 34 is mounted downstream thereof as shown in FIG. . On the downstream side of the exhaust fan 34, a first exhaust passage 35 to which a deodorizing device 38 described below is attached and a second exhaust passage 36 for directly discharging exhaust gas to the outside can be switched. A valve 37 is provided.

As shown in FIGS. 4 and 6, the deodorizing device 38 attached to the first exhaust passage 35 has a heater 39 disposed on the upstream side and a ceramic honeycomb structure formed on the downstream side. 40 are placed, they are heat resistant,
It is housed in a metal tubular body 41 of stainless steel or the like having corrosion resistance. As a result, the inflowing exhaust gas is
9, and the heated exhaust gas is supplied to the catalyst 4.
By passing through zero, the catalyst 40 is heated, and the decomposition reaction of the malodorous component contained in the exhaust gas is promoted.

The outlet side of the deodorizing device 38 is connected to an exhaust port 42 opening at the lower part on the rear side of the outer case 2. Further, a dilution fan 43 for diluting the temperature and odor of the high-temperature exhaust gas discharged from the deodorizing device 38 is attached to the exhaust port 42.

On the other hand, the second exhaust passage 36 communicates with an exhaust port 44 opened on the back side of the exhaust fan 34, that is, on the back side of the exterior case 2.

An intake port 45 for taking in outside air is formed on the bottom side of the outer case 2.
The outside air taken in from the outside case 2 and the processing tank 1
Is taken into the processing tank 1 through the suction hole 46 formed in the upper side wall of the processing tank 1.

At the bottom of the processing tank 1, as shown in FIG. 1, a discharge port 47 for the processed material (compost) stored therein is opened and opened by a drawer type shutter 48 so as to be openable and closable. On the bottom of the outer case 2 below the outlet 47, a discharge chute 49 inclined forward is integrally formed, and by pulling out the shutter 48, the compost is fed to the front side of the outer case 2 through the discharge chute 49. The processed material can be taken out.

When the present apparatus is used, a predetermined amount of a microorganism carrier (wood chips such as sawdust) is previously charged into the treatment tank 1 in the above configuration. Then, when processing organic matter such as garbage, the lid 5 is opened, and organic matter such as garbage is charged into the treatment tank 1 through the input port 4 and the lid 5 is closed. When the lid 5 is closed, this is detected by a detecting means (not shown), and the control unit mounted on the control board 30 supplies power to the sheet heater 31, the stirring motor 12, the exhaust fan 34 and the like based on the output. Start control.

By controlling the power supply to the stirring motor 12, the stirring shaft 7 on which the stirring blades 6 are erected intermittently (for example, every 30 minutes, every two minutes) to rotate the carrier and the organic substance with stirring. At the same time, the temperature in the treatment tank 1 is maintained in an optimum range for activating the microorganisms by controlling the energization of the planar heater 31, and the organic matter is decomposed into carbon dioxide and water by the microorganisms cultured on the carrier to compost. Become

Further, by controlling the power supply to the exhaust fan 34, the humid air in the processing tank 1 is discharged to the outside, and
In addition to preventing the inside from becoming in a high humidity state, as the air in the processing tank 1 is discharged to the outside, fresh outside air is taken into the case from an intake port 45 formed at the bottom of the outer case 2, Oxygen necessary for activating microorganisms is supplied into the processing tank 1 from an intake hole 46 formed in the upper part of the processing tank 1. Although not directly related to the present invention, when the odor level in the tank detected by an unillustrated odor sensor or the like exceeds a predetermined deodorization required level, the control unit switches the switching valve 37 from the state shown in FIG. 2 so as to close the exhaust passage 36 and energize the heater 39 of the deodorizing device 38.
When the dilution fan 43 is energized, the exhaust gas from the processing tank 1 flows into the first exhaust passage 35 having the deodorizing device 38.

Here, in the present embodiment, the water content sensor 1 is interposed between the intermittent operations (30 minute cycle) of the stirring blade 6.
The heating element 16 is heated for a certain period of time (about 20 minutes), and the water content is detected based on the temperature rise value detected by the thermistor 18.

If the temperature rise value is smaller than a predetermined lower limit value, it is determined that the water content is high, and the heating temperature of the sheet heater 31 which also functions as a water content adjustment means is determined so as to reduce the water content. While increasing the air volume of the exhaust fan 34 and the like, the intermittent cycle of the stirring blade 6 is shortened, or the stirring time is lengthened. By controlling in this manner, the water supplied together with the garbage and the water generated by the decomposition treatment of the garbage are easily evaporated, so that the water content is reduced.

On the other hand, if the temperature rise value is larger than a predetermined upper limit value, it is determined that the water content is low, and the heating temperature of the sheet heater 31 and the exhaust fan 34 are increased to increase the water content.
And the like, the intermittent cycle of the stirring blade 6 is lengthened, or the stirring time is shortened. This makes it difficult for water and the like generated by the decomposition processing of the garbage to evaporate, thereby acting to increase the water content.

If the temperature rise value is within a predetermined range, it is determined that the water content is appropriate. In order to maintain the water content, the heating temperature of the sheet heater 31, the air volume of the exhaust fan 34 and the like, and the agitation are maintained. The intermittent cycle and the stirring time of the blade 6 are operated as standard. By doing so, the water and the like generated by the decomposition process of the garbage will evaporate appropriately,
The water content in the processing tank 1 is maintained at an appropriate value.

[0038]

As described above, according to the present invention, a processing tank for storing a carrier of microorganisms that decompose organic substances and decomposing organic substances such as garbage to be put thereinto, and a processing tank put in the processing tank. A stirrer that stirs and mixes the organic material and the stored carrier, a drive mechanism that drives the stirrer, a frame to which the drive mechanism is attached, and a frame attached to the inside of the processing tank to fix the frame to the outside of the processing tank. A fixed member, and a heat capacity type moisture content sensor for detecting the moisture content in the treatment tank, which is provided inside the fixed member, so that the moisture content sensor is not exposed in the treatment tank. Since the moisture content of the sensor can be detected, it is possible to prevent the sensor from being damaged or damaged.

In addition to the above-mentioned effects, in addition to the above-mentioned effects, the water content in the processing tank is automatically adjusted to be appropriate by providing the water content adjusting means for adjusting the water content in the processing tank based on the detection result of the water content sensor. Value can be maintained.

Further, since the fixed member is formed by forming a bearing of a stirrer, the moisture content sensor can be arranged near the stirrer, so that organic matter such as garbage is always mixed. The moisture content of the microorganism carrier can be detected.

Further, since the fixing member is made of a Duracon resin having good slippage and excellent heat conductivity, organic substances such as garbage and microbial carriers may adhere and stick. In addition, heat generated from the moisture content sensor is easily transmitted to the processing tank.

Further, since the back side of the moisture content sensor is covered with a heat insulating material, heat can be efficiently transmitted into the treatment tank without being affected by the outside air temperature and the like, and an accurate moisture content can be detected. be able to.

Further, since the back side of the moisture content sensor is covered with a member reflecting heat generated from the moisture content sensor, radiation heat to the outside can be cut off, which is more effective.

[Brief description of the drawings]

FIG. 1 is a vertical cross-sectional view of an organic material processing apparatus according to an embodiment of the present invention as viewed from a side.

FIG. 2 is an enlarged view of a main part of FIG. 1;

FIG. 3 is a vertical cross-sectional view of the organic substance processing apparatus as viewed from the front side.

FIG. 4 is a vertical cross-sectional view showing the drive mechanism as viewed from the rear side.

FIG. 5 is a top view similarly showing an exhaust and intake structure.

FIG. 6 is a vertical sectional view showing an exhaust and intake structure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Processing tank 2 Outer case 4 Input port 5 Lid 6 Stirring blade 7 Stirring shaft 8, 9 Bearing 11 Reduction mechanism 12 Stirring motor 13 Drive mechanism mounting frame 14 Fixing member 15 Water content sensor 16 Heating element 17 Sponge 18 Thermistor 19 Sensor Cover 20 Reflecting member 21 Insulating material 30 Control board 31 Planar heater 34 Exhaust fan

Continuation of the front page (72) Yoshihiro Tanimoto 2-5-5 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (72) Shinichi Tamaogi 2-5-1 Keihanhondori, Moriguchi-shi, Osaka No. 5 F-term in Sanyo Electric Co., Ltd. (reference) 4D004 AA02 AA03 AA04 BA04 CA15 CA19 CA22 CA48 CB04 CB28 CB32 CC02 CC08 CC09 DA01 DA02 DA06 DA09 DA13

Claims (6)

[Claims] 1. A treatment tank containing a carrier of microorganisms that decompose organic matter and decomposing organic substances such as garbage to be charged therein, and stirring the organic substance charged in the treatment tank and the carrier contained therein. A stirrer to be mixed; a drive mechanism for driving the stirrer; a frame to which the drive mechanism is attached; a fixing member attached to the inner surface of the processing tank to fix the frame to an outer surface of the processing tank; An organic matter processing apparatus, comprising: a heat capacity type water content sensor for detecting a water content in a processing tank, which is provided inside a fixing member. 2. The organic substance processing apparatus according to claim 1, further comprising a water content adjusting means for adjusting a water content in the processing tank based on a detection result of the water content sensor. 3. The fixing member according to claim 1, wherein a bearing for the stirring member is formed.
The organic matter processing apparatus according to the above. 4. The apparatus according to claim 1, wherein the fixing member is formed of a Duracon resin. 5. The organic substance processing apparatus according to claim 1, wherein a back side of the moisture content sensor is covered with a heat insulating material. 6. The organic matter treating apparatus according to claim 1, wherein a back side of the moisture content sensor is covered with a member that reflects heat generated from the moisture content sensor.