JP2000246218A - Apparatus for treating organic substance - Google Patents

Abstract

PROBLEM TO BE SOLVED: To discharge gas from a treatment tank through an exhaust duct stably without generation of bedewing and without increasing running costs. SOLUTION: The control cycle of exhaust control is decided corresponding to the amount of organic substances to be charged, when exhaust is started according to the control cycle, a duct fan F1 arranged in an exhaust duct is driven to generate a flow in the duct. After that, an exhaust fan F arranged in an exhaust passage is driven after the passage of a prescribed time to stabilize the exhaust. When the exhaust is to be stopped, the fan F is stopped to prevent the discharge of high temperature damp exhaust gas from a treatment tank, and the duct fan F1 is operated for a prescribed time. After high temperature damp exhaust gas being discharged from the exhaust duct, the duct fan F1 is stopped, and the generation of bedewing is prevented while the reduction of running costs being attempted.

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 put into a processing tank by the action of microorganisms in the processing tank.

[0002]

2. Description of the Related Art As a method for treating organic matter such as kitchen garbage (garbage) generated in kitchens of ordinary households and restaurants, there is a method utilizing decomposition by microorganisms. The organic matter treatment apparatus according to this method is configured such that an input port is opened at an upper portion of a processing tank for storing a carrier of microorganisms (wood chips, sawdust, activated carbon, and the like), and a stirrer is disposed inside. The organic substance charged into the processing tank through the above is stirred together with the carrier by the operation of the stirring body, taken into the carrier, and decomposed.

[0003] The organic matter taken into the carrier by the agitation leaves a small amount of a composted residue and removes carbon dioxide gas, as usual in nature, due to the activity of microorganisms living in the carrier. It is decomposed into gas and water as main components. In order to effectively perform this decomposition, supply an appropriate amount of air (oxygen) into a carrier containing an appropriate amount of water and kept at an appropriate temperature, and keeping the inside of the carrier in an environment suitable for the activity of microorganisms. is important.

Therefore, conventionally, an exhaust fan for exhausting the air in the processing tank and a heater for heating the inside of the processing tank have been provided, and the operation of the exhaust fan causes moisture released from the carrier as a result of decomposition processing. Is exhausted to the outside of the processing tank, thereby controlling the exhaust to supply the outside air into the processing tank, and turning on / off the power supply to the heater based on the detection result of the internal temperature of the processing tank. And heating the agitator to periodically stir the carrier, take in air into the carrier, and release gas and moisture generated by decomposition into the upper space of the processing tank. Stirring control is carried out in combination with water, temperature and air content in the carrier to optimize the activity of microorganisms, and to perform organic matter decomposition treatment with high efficiency.

[0005] The exhaust fan is provided in the processing tank,
It is arranged in the middle of the exhaust air passage provided in a mode communicating with the exhaust port opened to the exterior housing of the processing tank, and for example, at a predetermined cycle determined according to the amount of the organic substance charged into the processing tank. In addition, the apparatus is operated by repeatedly driving and stopping to surely exhaust the generated gas and moisture, reduce the power consumption required for the exhaust, and reduce the running cost.

[0006]

It is desirable that the organic matter treatment apparatus as described above is installed and used indoors, for example, near a kitchen where garbage to be treated is generated.
When the exhaust fan is driven, the air inside the processing tank is exhausted into the room through the exhaust port, and the odor inside the processing tank released together with the exhaust drifts into the room, causing deterioration of the surrounding environment. There is a problem.

Therefore, conventionally, an exhaust duct is connected to the exhaust port at the end of the exhaust air path, and this exhaust duct is extended outside the room, and exhaust air from the processing tank is exhausted outside through the exhaust air path and the exhaust duct. The organic matter processing device was
No. 229535 (B09B 3/00) and the like. In this organic matter treatment apparatus, particularly when the exhaust duct becomes long, the exhaust capacity of the exhaust fan is insufficient,
Since there is a possibility that stable exhaust cannot be performed, a duct fan for performing an auxiliary exhaust operation is arranged in the middle of the exhaust duct so that stable exhaust is performed.

However, the exhaust gas from the inside of the processing tank is heated to a high temperature by the heater, and contains a large amount of water. On the other hand, the end of the exhaust duct extended to the outside communicates with the outside air. However, the duct fan arranged in the exhaust duct is exposed to an environment in which the temperature difference and the humidity difference between the suction side and the discharge side are large, and dew condensation easily occurs on the duct fan, and the The drive system of the duct fan including the motor described above is damaged at an early stage, and it is difficult to maintain a stable exhaust state for a long period of time.

In order to alleviate the occurrence of such dew condensation, the organic matter processing apparatus disclosed in the above-mentioned Japanese Patent Application Laid-Open No. 8-229535 employs a configuration in which a duct fan arranged in the middle of an exhaust duct is constantly driven. However, in such a case, there is a problem that the power consumption of the constantly driven duct fan becomes large, and the running cost of the organic matter processing apparatus is increased.

In addition, the exhaust from the processing tank is steadily exhausted by the operation of the duct fan, and the moisture in the processing tank is released together with the exhaust, so that the carrier stored in the processing tank is dried and the microorganisms are removed. There is a problem that the habitat environment is deteriorated and the treatment capacity is reduced. Further, since the heat inside the treatment tank is released together with the exhaust gas, the load of the heater provided for heating the inside of the treatment tank increases. However, there has been a problem that the running cost is increased in combination with the constant drive of the duct fan.

The present invention has been made in view of such circumstances, and even in the case where the exhaust gas from the processing tank is exhausted through a long exhaust duct, this exhaust is performed without fear of dew formation. It is another object of the present invention to provide an organic material processing apparatus capable of performing a stable operation without increasing running costs.

[0012]

According to a first aspect of the present invention, there is provided an organic matter treating apparatus for discharging exhaust gas from a processing tank for decomposing organic matter into an exhaust air passage disposed in the exhaust air passage communicating with the processing tank. A configuration in which the operation of the fan and the operation of the duct fan arranged in the middle of the exhaust duct connected to the exhaust air path guide the air to a position distant from the processing tank via the exhaust air path and the exhaust duct, and discharge the air. The organic material processing apparatus according to claim 1, further comprising: an exhaust control unit that drives the exhaust fan and the duct fan by repeatedly operating and stopping at predetermined control cycles.

According to the present invention, the exhaust fan arranged in the middle of the exhaust air passage is operated and stopped at a cycle corresponding to the amount of the organic matter charged into the processing tank, and is arranged in the middle of the exhaust duct. By activating and stopping the arranged duct fan, power consumption for driving the duct fan is reduced, and heat radiation from the processing tank and drying of the carrier inside the processing tank are prevented while the exhaust fan is stopped. And reduce running costs. When the exhaust fan is stopped, high-temperature, high-humidity exhaust in the processing tank is not sent into the exhaust duct, so that the degree of dew condensation on the stopped duct fan is reduced.

Further, in the organic matter treating apparatus according to the second invention, the exhaust control means in the first invention stops the exhaust fan when the exhaust fan and the duct fan stop, and waits for a predetermined time to elapse. The duct fan may be stopped.

In the present invention, when stopping the exhaust fan and the duct fan which are both in operation, only the exhaust fan is first stopped, and thereafter, the drive of the duct fan is continued until a predetermined time elapses. After a predetermined time has elapsed, that is, after exhausting the high-temperature and humid exhaust remaining in the exhaust duct, the duct fan is stopped to reduce the possibility of dew condensation occurring during the stop.

Further, in the organic matter treating apparatus according to a third aspect of the present invention, the exhaust control means according to the first or second aspect of the present invention operates the duct fan at a predetermined time after the exhaust fan and the duct fan start operating. It is characterized in that the exhaust fan is operated after a lapse of time.

In the present invention, when starting the operation of the exhaust fan and the duct fan both in a stopped state, only the duct fan is operated first, and thereafter, the exhaust fan is kept stopped until a predetermined time elapses. After elapse, that is, after a desired flow is generated in the exhaust duct, the exhaust fan is operated to stably exhaust the inside of the processing tank.

The organic matter treating apparatus according to a fourth aspect of the present invention is characterized in that the organic matter treating apparatus further comprises an opening / closing means disposed at a connection portion between the exhaust air passage and the exhaust duct, for opening and closing by the action of the exhaust.

In the present invention, the connection between the exhaust air passage and the exhaust duct is closed by the opening / closing means during the suspension of the exhaust operation in which the exhaust fan and the duct fan are stopped, so that high-temperature and humid exhaust inside the processing tank can be prevented. It is prevented from being sent into the exhaust duct, and the occurrence of dew condensation on the duct fan is reduced.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings showing the embodiments. FIG. 1 is a front sectional view of an organic matter processing apparatus according to the present invention, FIG. 2 is a side sectional view taken along line II-II of FIG. 1, and FIG. 3 is a side sectional view taken along line III-III of FIG.

In FIG. 1, reference numeral 1 denotes a treatment tank for decomposing organic substances. As shown in FIG. 2, the processing tank 1 is a hollow container having a side cross-sectional shape having a semicircular lower half, and having an opening for introducing organic matter substantially on the entire upper surface thereof. It is supported inside the exterior case 2. A cylindrical input chute 20 hanging from the top plate of the outer case 2 is inserted into the upper opening of the processing tank 1 to form an input port for an organic substance to be processed. It is openably and closably covered by an upper lid 21 attached to the upper surface of the outer case 2.

As shown in FIG. 1, on one side of the upper part of the processing tank 1,
A substrate chamber 30 in which a control substrate 3 for operation control is provided is provided. Between the substrate chamber 30 and the rear surface of the input chute 20 on the same side, a large number of penetrating through the wall surface of the input chute 20 are provided. An exhaust air passage 32 communicating with the inside of the processing tank 1 through the exhaust holes 22 and 22 (see FIG. 2) is formed.

As shown in FIG. 3, the exhaust air passage 32 extends downward at the rear side of the substrate chamber 30 and communicates with an exhaust port 33 formed on the rear wall surface of the outer case 2. The air inside the tank 1 is sucked into the exhaust air passage 32 through the exhaust hole 22 by the operation of the exhaust fan F arranged in the middle of the exhaust air passage 32, and is discharged to the outside of the exterior case 2 through the exhaust port 33. It is designed to be discharged.

FIG. 4 is a cross-sectional view taken along line IV-IV of FIG. As shown in the figure, a folded edge 10 which is folded inward over an appropriate width is formed at the upper part of the processing tank 1 so as to frame the periphery of the rectangular opening of the organic material. A plurality of air intake holes 11, 11 penetrating therethrough are formed in the edge 10, and the inside of the processing tank 1 is communicated with the inside of the outer case 2 by these air intake holes 11, 11,. As shown in FIG. 1, a plurality of air intake holes 12 are formed on the bottom surface of the exterior case 2 so as to penetrate the interior and exterior of the exterior case 2.
... are communicated outside.

When the above-described exhaust is performed by the operation of the exhaust fan F, outside air is sucked into the exterior case 2 through the intake holes 12, 12,... As shown by arrows in FIG. This outside air flows upward through a gap between the processing tank 1 and is introduced into the processing tank 1 through each of the suction holes 11, 11,....

Further, inside the processing tank 1, a stirring member 4 provided with a stirring shaft 40 laid between both side walls and a plurality of stirring rods 41, 41... Protruding radially from the stirring shaft 40. The protruding end of the stirring shaft 40 to the outside of one side of the processing tank 1 is arranged as shown in FIG.
As shown in FIG. 3, the output shaft is connected to an output shaft of a stirring motor M disposed on the same bottom of the outer case 2 via a transmission mechanism 42 constituted by a combination of a transmission belt and a transmission gear.

As shown in FIG. 2, a carrier A for microorganisms made of sawdust, wood chips and the like is accommodated in the processing tank 1, and the carrier A is provided with a transmission mechanism 42 by the stirring motor M. The rotation of the stirrer 4, which is decelerated and driven, causes the stirring to be performed over substantially the entire region in the width direction and the depth direction. This stirring is performed to take in the organic matter into the carrier A when the organic matter is introduced into the processing tank 1 from the upper inlet, and during the subsequent operation,
Moisture and gas generated in the carrier A by the decomposition of the organic matter are released into the upper space of the treatment tank 1 and are performed at predetermined intervals to prevent deterioration of the internal environment of the carrier A.

As shown in FIG. 2, a sheet-like heater H for internal heating is attached to the bottom outer surface of the processing tank 1. The internal heating of the processing tank 1 by the heater H
In order to keep the internal temperature of the carrier A at a temperature suitable for the activity of microorganisms, for example, it is performed by on / off control for turning on / off the power to the heater H based on the surface temperature of the heater H detected by a temperature sensor (not shown). .

Further, the exhaust from the processing tank 1 by the operation of the exhaust fan F and the introduction of the outside air into the processing tank 1 are set according to the amount of the organic substance introduced into the processing tank 1. This is performed every predetermined cycle. By such an operation, the moisture and gas released from the carrier A with the stirring are discharged, and the outside air introduced into the processing tank 1 is taken into the carrier A, and the internal environment of the carrier A is reduced. An environment suitable for the inhabitation of microorganisms can be maintained.

The stirring, heating and exhaust control as described above are performed in accordance with operation commands from the operation control unit 6 (see FIG. 6) provided on the control substrate 3 disposed inside the substrate chamber 30 above the processing tank 1. By this control, the inside of the carrier A is maintained in an environment suitable for the activity of microorganisms by supplying an appropriate amount of air and maintaining an appropriate temperature, and is charged into the treatment tank 1 and taken into the carrier A. The organic matter is decomposed into a gas containing carbon dioxide as a main component and water, leaving a small amount of composted residue.

The organic substance processing apparatus according to the present invention having the above-described structure is configured such that the exhaust fan F operates to operate the exhaust air passage 32.
An exhaust duct 5 connected to the exhaust port 33 opened on the rear wall surface of the outer case 2 is provided to guide exhaust gas discharged from the processing tank 1 to a desired position away from the processing tank 1. . As shown in FIG. 3, the exhaust duct 5 has a resin introduction duct 50 having openings on both sides in the axial direction, and is fitted and fixed to one open end of the introduction duct 50 and bent at an appropriate position. And a bellows-shaped delivery duct 51 that can be configured.

The introduction duct 50 is connected to a connecting pipe 52 at an intermediate portion in the axial direction thereof, with the respective axes intersecting obliquely.
The connecting pipe 52 allows the exhaust port 33 to be provided.
Is mounted with its axis centered vertically. The delivery duct 51 is fitted to the lower open end of the introduction duct 50, and constitutes the exhaust duct 5 together with the connection pipe 52 and the introduction duct 50. As described above, the exhaust air passage 32 is operated by the operation of the exhaust fan F. Introduced at the end of this outlet 33
The exhaust gas discharged from the
It is introduced into 50 and sent out into the delivery duct 51.

The connecting pipe 52 extending into the introduction duct 50
An opening that is inclined obliquely downward is provided at an end of the opening, and the upper half of this opening faces a backing plate 53 that extends downward from its upper edge. A flap plate 54 is suspended along the other side of the corresponding plate 53. The flap plate 54 is a resin thin plate having a planar shape corresponding to the end opening of the connecting pipe 52, and is swingable with its upper edge as a pivot. The swing means opens and closes the opening by this swing. Acts as.

That is, as shown by an open arrow in FIG.
When the exhaust from the processing tank 1 is sent into the exhaust duct 5 via the connecting pipe 52 by the operation of the exhaust fan F, the flap plate 54 is pressed by receiving the exhaust from the connecting pipe 52 over one surface, Since the other surface is pressed against the backing plate 53, the end opening of the connecting pipe 52 is largely opened. The closing by the flap plate 54 is performed as described later.

The upper half of the introduction duct 50 is connected to the connecting pipe.
It branches upward in the vicinity of 52, and has an opening on substantially the entire upper surface. Inside the branch portion, it said and duct fan F ₁ is disposed at a position close to the opening, when the duct fan F ₁ is rotated, as indicated by outline arrow in FIG. 3 The outside air is sucked through the opening and is sent into the exhaust duct 5.

[0036] The duct fan F _1, when the exhaust fan F is driven and is rotated therewith. Thus, the exhaust from the processing tank 1 is fed to the exhaust fan exhaust duct 5 through the exhaust air path 32 by the operation of the F is outside air which is introduced into the interior of the duct fan F operated by the exhaust duct 5 in ₁ It merges with the flow and is stably sent out into the sending duct 51.

FIG. 5 is an explanatory view of the state of use of the organic substance processing apparatus according to the present invention. In the organic matter treatment apparatus according to the present invention, the apparatus main body including the treatment tank 1 inside the outer case 2 is installed inside a room R such as a kitchen as shown in the drawing, and the delivery duct 51 constituting the exhaust duct 5 is appropriately changed. The partition wall W that separates the chamber R from the outside is penetrated to extend outside the room. The extended end is opened outside the room, and the exhaust from the processing tank 1 is discharged outside through the exhaust duct 5. It is possible to use it in the form which does.

At this time, the exhaust from the processing tank 1 is sent into the exhaust duct 5 through the exhaust air passage 32 by the operation of the exhaust fan F, and the exhaust fan 5
The _first operation, and the outside air (air in the chamber R) is fed from the upper end opening of the inlet duct 50, the delivery duct
51 even became Nagasun, by the synergistic action of the exhaust fan F and the duct fan F _1, it is possible to stably discharge the exhaust outdoors.

As shown by a broken line in FIG.
A deodorizing device S is provided in the middle of the exhaust pipe 51 so as to be able to contact the exhaust gas flowing through the interior of the deodorizing device. By the action of S, it is removed before the discharge. The deodorizing device S can adopt an appropriate configuration such as a configuration in which an odor component is decomposed and removed by a photocatalyst or a bioenzyme, or a configuration in which an odor component is adsorbed by an adsorbent such as activated carbon. When the deodorizing device S is configured using a photocatalyst, a part or all of the delivery duct 51 may be made of a light-transmitting material, and indoor or outdoor light may act on the photocatalyst.

FIG. 6 is a block diagram of a control system of the organic matter processing apparatus according to the present invention. As described above, the operation control unit 6 constructed by using a microprocessor on the control board 3 has an operation An operation display unit 7 for displaying operation and operation status is connected. On the input side of the operation control unit 6, an open / close sensor 44 for detecting opening and closing of the upper lid 21 above the processing tank 1 and a temperature sensor 45 for detecting the internal temperature of the processing tank 1 are provided.
And are connected.

The open / close sensor 44 is, for example,
Can be configured by a microswitch that is turned on when the front edge of the device comes into contact with the upper surface of the outer case 2 when the device is closed. Further, the temperature sensor 45 can be constituted by, for example, a thermistor attached to the surface of the heater H for heating the inside of the processing tank 1.

On the other hand, the output side of the operation control unit 6 is connected to the agitator 4 (motor M for driving), the exhaust fan F, the duct fan F ₁ and the heater H via respective operation circuits. These are driven or energized in accordance with an operation command given from the operation control unit 6.

The operation display unit 7 connected to the input side of the operation control unit 6 is, as shown in FIGS. 1 and 3, the top of the outer case 2 covering the upper part of the substrate chamber 30 in which the control substrate 3 is disposed. It is arranged on a board. FIG. 7 is a plan view showing a configuration example of the operation display unit 7. As shown in FIG. 7, the operation display unit 7 has a process that is operated in accordance with the amount of the organic substance charged into the processing tank 1. Mode designating switches 70, 71, 72, processing mode display LEDs 73, 74, 75, which are individually lit according to these operations;
An operation switch 76 is provided which is operated to indicate the start of the operation after the completion of the designation of the processing mode.

The operation control unit 6 recognizes the input of the organic substance by the input from the open / close sensor 44, and recognizes the input amount of the organic substance by turning on / off the processing mode designating switches 70, 71, 72, and based on the recognition result. Stirrer 4 on the output side
Exhaust fan F, issues an operation command to the ducted fan F ₁ and the heater H, the heating described above, agitation is carried out and exhaust control.

The user opens the upper lid 21 to open the processing tank 1.
When the organic matter (garbage) is charged into the inside of the, one of the processing mode designating switches 70, 71, 72 is operated in accordance with the input amount, and the corresponding processing mode display LEDs 73, 74,
After confirming the lighting of 75, the operation switch 76 is operated to instruct the operation control unit 6 to perform an operation according to the designated processing mode.

The output of the operation control unit 6 is output from the operation display unit 7
Are also provided to the processing mode display LEDs 73, 74, and 75, which are turned on in response to a command from the operation control unit 6. The operation display section 7 is provided with a carrier exchange LED 77 and an abnormality display LED 78. The former is such that when the carrier A inside the processing tank 1 needs to be exchanged, the latter causes an abnormality in each part. At this time, it is configured to be turned on or flashed in response to a command from the operation control unit 6, respectively.

The heating control by turning on and off the heater H is performed based on the detection result of the surface temperature of the heater H given from the temperature sensor 45, and the stirring control by driving the stirring body 4 is controlled by the open / close sensor 44. When the input of the organic substance is recognized by the input of, and every predetermined period thereafter, the operation is performed for a predetermined time.

A feature of the organic matter processing apparatus according to the present invention lies in a procedure of exhaust control performed by operating the exhaust fan F and the duct fan F ₁ according to a command from the operation control unit 6. FIG. 8 is a flowchart showing the procedure of the exhaust control.

The operation control section 6 starts its operation in response to the turning on of the power supply, monitors the input from the opening / closing sensor 44, and checks whether or not the organic substance has been turned on (step 1). As a result, when it is determined that the input of the organic substance has been performed, the processing mode designated by the operation of the processing mode designating switches 70, 71, 72 arranged on the operation display unit 7 is taken in (step 2). The control mode of the exhaust control is set in accordance with this processing mode, that is, the amount of the organic substance charged (step 3).

This control cycle is set to be short in order to perform frequent exhaust operations, since when the amount of the organic substance is large, the amount of gas and water generated by the decomposition treatment in the processing tank 1 becomes large. On the contrary, when the input amount of organic matter is small,
It is set long to reduce power consumption for exhaust and reduce running costs. When it is determined in step 1 that the organic substance has not been charged, the control cycle set at the time of the previous charging is used as it is.

After setting the control cycle in this manner, the operation control unit 6 checks whether or not it is time to start the exhaust operation (operation time) by measuring the time of the built-in timer (step 4). In such a case, the operation waits until an operation timing is reached. If it is determined that the operation timing in step 4, firstly issues an operation command to the ducted fan F ₁ on the output side, to drive the duct fan F ₁ (step 5). Thereafter, the process waits until a preset predetermined time elapses (step 6), and after the predetermined time elapses, issues an operation command to the exhaust fan F on the output side to drive the exhaust fan F (step 7).

[0052] With the above operation, when a timing to start the discharging operation based on the exhaust gas control cycle set at step 3, first, the duct fan F ₁ disposed in the exhaust duct 5 is driven, the Thereafter, after the predetermined time has elapsed, the exhaust fan F disposed in the exhaust air passage 32 is driven to start the exhaust from the inside of the processing tank 1. That is, first the operation of the ducted fan F _1, the above-mentioned flow occurs in the exhaust duct 5, an exhaust fan F is operating in this state,
The exhaust gas from the processing tank 1 is sent to the exhaust duct 5, and the exhaust gas can be stably performed by the auxiliary action of the flow generated in the exhaust duct 5.

The exhaust operation as described above, that is, the exhaust fan F
After the operation up to the driving of the motor is completed, the operation control unit 6 stops the exhaust operation by measuring the time of the built-in timer (stop timing).
It is checked whether or not (step 8). If it is not at the stop timing, the process waits until the stop timing is reached. During this time,
Exhaust fan F and the duct fan F ₁ is in both operating states.

If it is determined in step 8 that it is time to stop, contrary to the case of starting the exhaust operation, a stop command is first issued to the exhaust fan F on the output side to stop the exhaust fan F. (Step 9). After that, it waits until a preset time elapses (step
10), issues a stop command to the ducted fan F ₁ after a predetermined time has elapsed, it stops the duct fan F ₁ (step 11).

After the above-mentioned stopping operation, that is, the operation up to the stop of the duct fan F ₁ , is completed, step 1 is executed.
And the above-described operation is continued until the power supply to the operation control unit 6 due to the power cutoff is cut off.

With the above operation, when it is time to stop the exhaust operation based on the exhaust control cycle set in step 3, first, the exhaust fan F disposed in the exhaust air passage 32 is stopped. after this, the duct fan F ₁ that the predetermined time is arranged after the elapse the exhaust duct 5 is made to stop. That is, the exhaust by the stop of the fan F, the high temperature generated in the treatment tank 1, the exhaust of humidity is no longer sent into the exhaust duct 5, the duct fan F ₁ is to continue to operate for a predetermined time in this state, the exhaust duct duct fans F ₁ is made to stop the exhaust remaining in the 5 after sufficiently discharged, and thus the exhaust operation is completely stopped.

When the duct fan F ₁ is arranged as shown in FIG. 3, while only the duct fan F ₁ operates for a predetermined time while the exhaust fan F is stopped, air is taken in from the upper opening of the introduction duct 50, The air is exhausted to the outside of the room through the opening at the end of the delivery duct 51, and the flow of the exhaust is generated by the flap plate 54 disposed at the connection between the introduction duct 50 and the connecting pipe 52.
The flap plate 54 swings around the upper edge by the pressure from the introduction duct 50 side, is pressed against the peripheral edge of the end opening of the connecting pipe 52, and the opening is closed. Become. FIG. 9 is an enlarged sectional view of a main part showing this state.

As a result, the inside of the exhaust duct 5 is disconnected from the connection pipe 52, that is, the communication with the exhaust air passage 32, and the exhaust generated inside the processing tank 1 is discharged by the flap plate 54. blocked not penetrate into the exhaust duct 5, a high temperature remaining in the duct fan F by the exhaust duct 5 to ₁ of the short operation, it is possible to satisfactorily discharge the exhaust humid. Accordingly, even in the temperature of the outdoor low cold season the exhaust duct 5 is opened through the delivery duct 51, during the stop period of the exhaust, the possibility that dew condensation is generated inside and the duct fan F ₁ of the exhaust duct 5 The duct fan F including the motor for driving due to the effect of the condensation can be greatly reduced.
_{The first} drive system can be prevented from being damaged, and a stable exhaust state can be maintained for a long period of time.

In addition, during the exhaust stop period, the duct fan F ₁ is stopped together with the exhaust fan F by the above-described operation, so that the power consumption required for driving the duct fan F ₁ can be reduced, and the running cost can be reduced. Can be reduced.

FIG. 10 and FIG. 11 are enlarged cross-sectional views near the exhaust duct showing another example of the exhaust system of the organic matter treating apparatus according to the present invention. In this figure, a duct fan F ₁ inside the introduction duct 50 is arranged near a communication portion with the connection pipe 52, that is, near a connection portion with the exhaust air passage 32 inside the outer case 2. The introduction duct 50, the opening of the delivery duct 51 is connected the lower end, whereas with the downstream side of the duct fan F _1, does not have an opening on the upper end side, the duct fan F
_A branch duct 58 is formed between the disposition position ₁ and the connection part so as to partially turn the connection duct and has an opening downward.
It has.

At the opening at the end of the connecting pipe 52 extended into the introduction duct 50, as in the embodiment shown in FIG. 3, a backing plate 53 and a flap plate 54 are provided. The flap plate 54 is urged by an urging spring 59 stretched between the inner wall of the introduction duct 50 and the urging force of the urging spring 59 as shown in FIG. Thus, the opening is kept closed.

In the organic substance processing apparatus configured as described above, the exhaust fan F (not shown) and the duct fan F
₁ are driven together, the flap plate 54 is pressed by receiving exhaust gas from the processing tank 1 sent into the connecting pipe 52 by the operation of the exhaust fan F on one side, and as shown in FIG. Swinging against the spring force of 59, the other surface is pressed against the abutment plate 53 to be restrained, and the connecting pipe 52
Results end opening of is opened largely, the exhaust gas is introduced into the inlet duct 50, it is supplementary is discharged through the delivery duct 51 by the operation of the ducted fan F _1.

[0063] Also in the interior of the inlet duct 50 at this time, but outside air is sucked from the branch duct 28 by the rotation of the duct fan F _1, this time, the upstream side of the duct fan F _1, i.e., located on the suction side Since the negative pressure acts on the flap plate 54 as the outside air is sucked, the opening of the end of the connection pipe 52 is not hindered.

On the other hand, when only the duct fan F ₁ is driven, outside air is sucked in from the branch duct 28 and sent out to the delivery duct 51, while the flap plate 54 is swung by the spring force of the biasing spring 29. Then, the end opening of the connecting pipe 52 is closed, and the exhaust from the processing tank 1 is shut off without being introduced into the exhaust duct 5. In this configuration, during the above-described stop period of the exhaust operation, the flap plate
54 keeps the closed state by the spring force of the biasing spring 29, the high temperature of the treatment tank 1, because the exhaust of humidity is interrupted, risk is reduced that dew condensation around the ducted fan F ₁ is generated, the condensation A stable exhaust state can be maintained over a long period of time without being affected by the above.

[0065]

As described above in detail, in the organic matter treating apparatus according to the first aspect of the present invention, the exhaust fan disposed in the middle of the exhaust air passage is operated by a cycle corresponding to the amount of the organic matter introduced into the treatment tank. Since the duct fan arranged in the middle of the exhaust duct is operated and stopped at the same time as the operation and stop at, the power consumption for driving the duct fan can be reduced, and the power consumption from the processing tank can be reduced. It is possible to reduce the running cost while preventing heat radiation and drying of the carrier inside the processing tank, and maintaining a good processing state.

In the organic matter treating apparatus according to the second aspect of the present invention, when the exhaust operation is stopped, the exhaust fan is stopped, and then the duct fan is stopped after a predetermined time has elapsed. Due to the operation of the duct fan, high-temperature and high-humidity exhaust gas is sufficiently exhausted, and the risk of dew condensation occurring in the duct fan during the subsequent exhaust stop period can be greatly reduced.

In the organic matter treating apparatus according to the third aspect of the present invention, the exhaust fan is operated after a predetermined time has elapsed after the duct fan has been operated at the start of the exhaust operation. Immediately after the start, the inside of the processing tank can be stably exhausted.

Further, in the organic matter processing apparatus according to the fourth aspect of the present invention, since the connecting portion between the exhaust air passage and the exhaust duct is provided with an opening / closing means for opening and closing by the action of the exhaust, the high temperature inside the processing tank during the stop of the exhaust operation can be reduced. The humid exhaust is shut off by the opening / closing means without being sent into the exhaust duct, and the occurrence of dew condensation in the exhaust duct and the duct fan can be more effectively mitigated. The present invention has excellent effects, for example, it can be performed.

[Brief description of the drawings]

FIG. 1 is a front sectional view of an organic matter processing apparatus according to the present invention.

FIG. 2 is a side sectional view taken along line II-II of FIG.

FIG. 3 is a side sectional view taken along line III-III of FIG. 1;

FIG. 4 is a cross-sectional view taken along line IV-IV of FIG. 2;

FIG. 5 is an explanatory diagram of a state of use of the organic matter processing apparatus according to the present invention.

FIG. 6 is a block diagram of a control system of the organic material processing apparatus according to the present invention.

FIG. 7 is a plan view illustrating a configuration example of an operation display unit.

FIG. 8 is a flowchart showing a procedure of exhaust control of the organic matter processing apparatus according to the present invention.

FIG. 9 is an enlarged sectional view of a main part for explaining the operation of the flap plate.

FIG. 10 is an enlarged cross-sectional view near the exhaust duct showing another example of the exhaust system of the organic matter treatment apparatus according to the present invention.

FIG. 11 is an enlarged cross-sectional view near the exhaust duct, showing another example of the configuration of the exhaust system of the organic matter processing apparatus according to the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Processing tank 2 Outer case 5 Exhaust duct 6 Operation control part 7 Operation display part 32 Exhaust air path 50 Introductory duct 51 Outgoing duct 52 Connecting pipe 54 Flap plate F Exhaust fan F ₁ Duct fan

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Yoshi Exhibition Nishimura 2-5-5 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (72) Yoshihisa Onishi 2-chome Keihanhondori, Moriguchi-shi, Osaka 5-5 Sanyo Electric Co., Ltd. (72) Inventor Masahiko Asada 2-5-5 Keihanhondori, Moriguchi-shi, Osaka F-term in Sanyo Electric Co., Ltd. 4D004 AA03 CA15 CA19 CB21 CB32 CB43 CC08 DA01 DA02 DA06 DA20

Claims (4)

[Claims] 1. An exhaust fan arranged in the middle of an exhaust air passage communicating with a processing tank for exhausting an exhaust gas from a processing tank for decomposing organic matter, and an exhaust duct connected to the exhaust air path. By the operation of the duct fan disposed in the organic matter processing apparatus is configured to guide to a position away from the processing tank via the exhaust air path and the exhaust duct, and to discharge, the exhaust fan and the duct fan, An organic substance processing apparatus, comprising: an exhaust control unit that repeatedly drives and stops operation at predetermined control cycles. 2. The exhaust control means according to claim 1, wherein when the exhaust fan and the duct fan are stopped, the exhaust fan is stopped, and then the duct fan is stopped after a predetermined time has elapsed. The organic matter processing apparatus according to the above. 3. The exhaust control means is configured to operate the duct fan when the exhaust fan and the duct fan start operating, and then operate the exhaust fan after a predetermined time has elapsed. The organic matter treatment apparatus according to claim 1 or 2. 4. The organic matter processing apparatus according to claim 1, further comprising an opening / closing means disposed at a connection portion between the exhaust air passage and the exhaust duct, and configured to open and close by an action of the exhaust. .