JP3292572B2 - Garbage fermentation processing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a processing tank for storing garbage and a moisture adjusting material for adjusting the water content of the garbage, heating means for heating the processing tank, The present invention relates to a garbage fermentation treatment apparatus provided with heating control means for controlling the heating operation of the heating means so as to maintain the temperature for promoting fermentation of garbage.

[0002]

2. Description of the Related Art Such a garbage fermentation treatment apparatus adjusts the moisture of garbage with a moisture adjusting material so that fermentation (aerobic fermentation) with sufficient oxygen is performed.
By maintaining the temperature in the treatment tank at a temperature for promoting fermentation of garbage, garbage is efficiently fermented to be composted. Conventionally, the heating control means is configured to control the heating operation of the heating means so that the inside of the processing tank is always maintained at a temperature for promoting the fermentation of garbage.

[0003]

However, in the above prior art, since the inside of the processing tank is always maintained at a temperature for promoting the fermentation of garbage, the garbage cannot be introduced into the processing tank for a long time. In addition, there has been a problem that the water content of the water conditioning material is abnormally reduced, and the fermentation of garbage becomes difficult. Further, there is a problem that the running cost is high because the energy consumption for heating the heating means is large.

[0004] The present invention has been made in view of such circumstances, and its object is to make it possible to constantly and efficiently ferment garbage by rationally improving the control configuration of the heating means. It is to reduce running cost.

[0005]

According to a first characteristic configuration of the garbage fermentation treatment apparatus according to the present invention, the heating control means includes an input detecting means for detecting that garbage is input into the processing tank. The configuration is such that the heating operation of the heating means is stopped when no garbage is input for the set standby time based on the detection information.

A second characteristic configuration is that the heating control means includes:
When it is detected that the garbage is input by the input detection unit, the heating unit is operated for heating for a set heating time, and every time a set stop time elapses after the operation of the heating unit is stopped, The heating means is operated for a set heating time to maintain the inside of the processing tank at a temperature for promoting fermentation of garbage.

A third characteristic configuration is provided with stirring means for stirring the garbage and the water adjusting material in the processing tank, and stirring control means for controlling the operation of the stirring means, wherein the stirring control means comprises: During the heating operation of the heating unit before the elapse of the standby set time, and during the operation stop of the heating unit after the elapse of the standby set time,
It is configured to operate the stirring means.

[0008]

The operation of the first characteristic configuration is as follows. Even if heating in the processing tank is continued in a state in which the garbage is not charged, the standby set time is appropriately set to a time in which the moisture of the moisture adjusting material can be maintained at a moisture suitable for the fermentation of the garbage. Therefore, when the garbage is not put in for the set time for standby, the heating operation of the heating means is stopped. Therefore, even if the garbage is not put into the processing tank for a long time, the water of the moisture adjusting material is fermented. Suitable moisture can be maintained. In this case, the inside of the processing tank is not heated, but the water in the water adjusting material is water suitable for fermentation of garbage, and the temperature in the processing tank increases due to heat generation during fermentation of garbage. The garbage can be fermented efficiently, though slightly lower than when heated. Further, when no garbage is supplied for the set standby time, the heating operation of the heating means is stopped, so that the energy consumption for heating the heating means is reduced.

The operation of the second characteristic configuration is as follows. The heating control means, when the garbage is put, so as to maintain the inside of the processing tank at a temperature for promoting the fermentation of the garbage, the heating means heats the set heating time, and,
Every time the set stop time elapses after the operation of the heating means is stopped,
The heating means is heated for a set heating time.

Incidentally, a temperature sensor for detecting the temperature in the processing tank is provided as a structure for maintaining the temperature in the processing tank at a temperature for promoting the fermentation of garbage, and the processing is performed based on the detection information of the temperature sensor. It is assumed that the heating control means is configured to control the heating operation of the heating means so as to maintain the inside of the tank at a temperature for promoting the fermentation of garbage. However, in this case, it is necessary to provide a temperature sensor, which complicates the configuration. However, in the case of this characteristic configuration, the configuration is simplified since there is no need to provide a temperature sensor.

The operation of the third characteristic configuration is as follows. Before the elapse of the standby time, the inside of the treatment tank is maintained at a temperature for promoting the fermentation of the garbage, and the garbage and the moisture adjusting material are agitated, so that the moisture of the garbage is made uniform. In addition, since sufficient air (oxygen) can be supplied, the fermentation of garbage can be further promoted. After the elapse of the set time for standby, although the inside of the processing tank is not heated,
Since the garbage and the water adjusting material are agitated, the garbage can be made to have a uniform moisture, and sufficient air (oxygen) can be supplied, so that the fermentation of the garbage can be further promoted. .

[0012]

According to the first feature, the garbage can always be fermented efficiently and the running cost can be reduced. Further, according to the second characteristic configuration, the present invention can be implemented with a simple configuration. Furthermore, according to the third characteristic configuration, the garbage can be more efficiently fermented.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. First, the overall configuration of the garbage fermentation treatment apparatus will be described with reference to FIG. The garbage fermentation treatment device A
An input port 1 for inputting garbage, a dust chute 2 for guiding garbage input from the input port 1, a processing tank 3 for accommodating garbage and sawdust as a moisture regulator, and a processing tank for the processing. A stirrer 4 as a stirring means for stirring raw garbage and sawdust stored in the inside 3; a hot air supply device 5 as a heating means for heating the inside of the processing tank 3 by feeding hot air into the processing tank 3; An exhaust duct 6 for guiding the exhaust from the tank 3, an exhaust port 7 for exhausting the exhaust to the outside, a control device 8 for controlling the garbage fermentation treatment apparatus A, and a hot air when no garbage is supplied for a long time. Supply device 5
The setting section 9 for setting a set time for standby for stopping the operation of is configured as a main component.

The opening 1 has a door 1A for opening and closing the opening 1.
And an opening / closing detection switch 1S for detecting opening / closing of the door 1A.
Is provided. Therefore, the open / close detection switch 1S functions as a loading detection unit that detects that garbage has been loaded into the processing tank 3.

The processing tank 3 is previously filled with sawdust. Sawdust is mixed with an appropriate amount of a decomposing bacterium (a microorganism that inhabits the soil, such as a bacterium, a radioactive bacterium, or a filamentous fungus).

The treatment tank 3 is provided with an openable discharge port 3A for discharging composted garbage that has been fermented. Reference numeral 10 in the figure denotes a container for storing composted garbage discharged from the discharge port 3A.

The stirring device 4 includes a support shaft 4 pivotally supported by the processing tank 3.
A, a plurality of stirring blades 4B fixed to the support shaft 4A,
And a stirring motor 4C for rotating the support shaft 4A around its axis.

The hot air supply device 5 includes a burner 5A, an air supply fan 5B for supplying combustion air to the burner 5A, a spark plug 5C for igniting the burner 5A, and a frame rod 5D for detecting the ignition of the burner 5A. It consists of:
The gas supply pipe 5G for supplying the fuel gas to the burner 5A is provided with an on-off valve 5E for interrupting the supply of the fuel gas and an adjusting valve 5F for adjusting the fuel gas supply amount.

The exhaust duct 6 is provided with an exhaust fan 6A for exhausting the exhaust gas in the processing tank 3 from the exhaust port 7 to the outside of the garbage fermentation treatment apparatus A.

The branch between the dust chute 2 and the exhaust duct 6 is provided with an ozone generator 11.

The setting section 9 is capable of arbitrarily setting the standby set time Tw in units of time.

The control device 8 is configured using a microcomputer. The control device 8 is connected to each of the open / close detection switch 1S and the frame rod 5D so that the detection information of each of the open / close detection switch 1S and the frame rod 5D is input. Also, by connecting the setting unit 9,
The standby set time Tw is input. or,
The stirring motor 4C, the air supply fan 5B, the spark plug 5C, the on-off valve 5E, the regulating valve 5F, the exhaust fan 6A, and the ozone generator 11 are connected to each other to control the operation of each.

Hereinafter, the control operation of the control device 8 will be described. First, control of the heating operation of the hot air supply device 5 will be described. When starting the operation of the hot air supply device 5,
The air supply fan 5B is operated to spark the ignition plug 5C, open the on-off valve 5E, adjust the opening of the regulating valve 5F, and ignite the burner 5A. When the ignition of the burner 5A is detected by the frame rod 5D, the spark of the ignition plug 5C is stopped. When stopping the hot air supply device 5, the on-off valve 5E is closed to extinguish the burner 5A, and the air supply fan 5B is stopped after a set time.

The start and stop of the operation of the stirring device 4 are controlled by operating and stopping the stirring motor 4C.

Next, control of the exhaust fan 6A will be described. With the start of the operation of the hot air supply device 5, the exhaust fan 6A is operated, and with the stop of the hot air supply device 5, the exhaust fan 6A is stopped.

Next, control of the ozone generator 11 will be described. Based on the detection information of the open / close detection switch 1S, the operation of the ozone generator 11 is started when the door 1A is opened, and the ozone generator 11 is stopped when the door 1A is closed. Further, the operation of the ozone generator 11 is started with the operation of the exhaust fan 6A, and the ozone generator 11 is stopped with the stop of the exhaust fan 6A. That is, the ozone generator 11 has a case where the door 1A is open and a case where the exhaust in the processing tank 3 is discharged from the exhaust port 7 to the outside of the garbage fermentation processing apparatus A while the exhaust fan 6A is operating. In this case, the odor of exhaust gas is deodorized by ozone, and the odor is prevented from leaking to the outside of the garbage fermentation treatment apparatus A.

Next, the garbage fermentation processing control will be described with reference to the flowcharts shown in FIGS. First, based on the flowchart shown in FIG. 2, control in a steady state before the elapse of the standby set time Tw will be described.

In step # 1, it is determined whether or not the door 1A has been opened and then closed, ie, whether or not fresh garbage has been introduced into the processing tank 3, based on the detection information of the open / close detection switch 1S. I do. In the following description, closing the door 1A after opening it is referred to as opening and closing the door 1A.
If it is determined in step # 1 that the door 1A has not been opened or closed,
In step # 2, the door 1
It is determined whether or not the standby time A has elapsed without the opening / closing of A. If it is determined that the standby time Tw has elapsed, the subroutine of long-time no-load control is executed, and the standby time Tw has elapsed. If not, the process returns to step # 1.

When it is determined in step # 1 that the door 1A has been opened or closed, the operations of the hot air supply device 5 and the stirring device 4 are started in steps # 3 and # 4, and the hot air ( For example, 60 ° C. to 80 ° C.) is supplied, and garbage and sawdust are stirred.

Subsequently, in step # 5, after the operation of the hot air supply device 5 and the stirring device 4 is started, the set heating time Th
Is determined, and if it is determined that the set heating time Th has elapsed, in steps # 6 and # 7, the hot air supply device 5 and the stirring device 4 are stopped. That is, the hot air supply device 5 and the stirring device 4 are operated for the set heating time Th. If the door 1A is opened or closed during the operation of the hot air supply device 5 and the stirring device 4, the process returns to step # 3, and the operation of the hot air supply device 5 and the stirring device 4 is newly started. (Step # 8).

Subsequently, in step # 9, it is determined whether or not the door 1A has been opened or closed based on the detection information of the open / closed detection switch 1S.

If it is determined in step # 9 that the door 1A has been opened or closed, the flow returns to step # 3, and the operation of the hot air supply device 5 and the stirring device 4 is newly started. If it is determined in Step # 9 that the door 1A has not been opened or closed, Step # 10
It is determined whether or not the state where the door 1A has not been opened and closed since the immediately preceding opening and closing of the door 1A has passed the standby set time Tw.
When it is determined that the standby setting time Tw has elapsed, the control unit executes a long-time no-load control subroutine and sets the standby setting time Tw.
If it is determined that the time has not elapsed, the process proceeds to step # 11.

In step # 11, the hot air supply device 5
And after stopping stirrer 4, it determines whether the first set stop time T ₁ is passed, the first set stop time T ₁ is passed, the process returns to step # 3, fresh hot air supply device 5 and the operation of the stirring device 4 are started.

That is, in steps # 9 to # 11,
While the first set stop time T ₁ is elapsed, the warm air supply device 5 and a stirring device 4 is stopped, the warm air supply device 5 and a stirring device 4 is stopped, when there is the opening and closing of the door. 1A, The operation of the hot air supply device 5 and the stirring device 4 is newly started,
When the standby time Tw has elapsed since the door 1A has not been opened or closed since the last time the door 1A was opened or closed, a long-time no-load control subroutine is executed.

If the door 1A is opened or closed while the hot air supply device 5 and the stirring device 4 are operating, the door 1A is opened based on the detection information of the open / close detection switch 1S. When the door 1A is closed, the hot air supply device 5 and the stirring device 4 are stopped, and the control of the hot air supply device 5 and the stirring device 4 is newly started.

That is, in the above-described steady-state control,
When fresh garbage is introduced into the processing tank 3, the hot air supply device 5 and the stirring device 4 are operated for the set heating time Th. First set stop time T after the supply device 5 and the stirring device 4 are stopped
Each time ₁ elapses, the hot air supply device 5 and the stirring device 4 are repeatedly operated for the set heating time Th to maintain the inside of the processing tank 3 at a temperature for promoting fermentation of garbage, Stir garbage and sawdust. When the hot air supply device 5 and the stirring device 4 are stopped, the state in which the door 1A has not been opened or closed since the immediately preceding opening and closing of the door 1A is the standby set time T.
If w has elapsed, a long-time no-load control subroutine is executed.

The long-time no-load control will be described below with reference to the flowchart shown in FIG. Step #
At 12, the operation of the stirrer 4 is started to stir garbage and sawdust.

Subsequently, in step # 13, it is determined whether or not the set stirring time Tb has elapsed after the start of the operation of the stirring device 4, and if it is determined that the set stirring time Tb has elapsed, in step # 14, The stirring device 4 is stopped. That is, the stirring device 4 is operated for the set stirring time Tb.
During the operation of the stirring device 4, in step # 15, the door 1 is detected based on the detection information of the open / close detection switch 1 S.
It is determined whether or not the door A has been opened and closed, and if it is determined that the door 1A has been opened and closed, the process returns to step # 3, and the above-described steady-state control is executed.

Subsequently, in step # 16, it is determined whether the door 1A has been opened or closed based on the detection information of the open / closed detection switch 1S. If it is determined in step # 16 that the door 1A has been opened or closed, the flow returns to step # 3, and the above-described control in a steady state is executed. When closing the door 1A at step # 16 it is determined that there was no step at # 17, after stopping the stirrer 4, and determines whether the elapsed second set stop time T ₂ is the second set stop time T ₂ Has elapsed, the flow returns to step # 12, and a new stirring device 4
Start driving.

[0040] That is, in step # 16 to # 17, while the second set stop time T ₂ has elapsed, continued suspension of the stirring device 4, during the stopping stirring device 4, there is closing of the door 1A When it is determined that the control has been performed, the process returns to step # 3, and the above-described control in the steady state is executed.

During operation of the stirring device 4, the door 1A
When the door 1A is open, the stirring device 4 is stopped based on the detection information of the opening / closing detection switch 1S, and when the door 1A is closed, the stirring device 4 is newly opened. Control to start operation.

In other words, in the above-mentioned long-time non-injection control, when no garbage is introduced into the treatment tank 3 for the set standby time Tw, the hot air supply device 5 is stopped to thereby control the water content of sawdust. Is maintained at a moisture content suitable for fermentation of garbage (for example, 40 to 60%, weight ratio). Moreover, each time the stirrer second set stop time T ₂ after stopping the 4 has elapsed, by repeating be operated during the setting of the stirring device 4 stirring time Tb, stirring the garbage and sawdust in the treatment tank 3 To make the water in the garbage uniform,
By supplying sufficient air (oxygen), the fermentation of garbage is promoted. If the door 1A is opened or closed during that time, the control in a steady state is executed.

The set heating time Th and the set stirring time T
b and the set stop times T ₁ and T ₂ are set to appropriate values in advance and stored in the control device 8.

Accordingly, the control device 8 constitutes a stirring control means 81 for controlling the operation of the stirring device 4. or,
The control device 8 constitutes a heating control means 82 for controlling the heating operation of the hot air supply device 5 so as to maintain the inside of the treatment tank 3 at a temperature for promoting fermentation of garbage.

[Another Embodiment] Next, another embodiment will be described. In the above embodiment, the door 1A is controlled by the open / close detection switch 1S.
When the opening and closing is detected that there of, and setting the heating time to heat activate the 5 hot air supply device, a first set stop time T ₁ after stopping the operation of the hot air supply device 5 has elapsed In each case, the case where the set heating time for heating the hot air supply device 5 is set to be the same at Th has been described as an example, but these set heating times may be different.

In the above-described embodiment, in the control in the steady state, the case where the stirring device 4 and the hot air supply device 5 are operated at the same timing and for the same time (the set heating time Th) is exemplified. The timing for operating each of the supply devices 5 may be different, or the operation time of each of the stirring device 4 and the hot air supply device 5 may be different.

In the above embodiment, the case where the stirrer 4 is operated intermittently is illustrated.
The stirring device 4 may be operated continuously.

In the above embodiment, as a control structure of the heating operation of the hot air supply device 5 for maintaining the inside of the processing tank 3 at a temperature for promoting the fermentation of garbage, each time 1 set stop time T ₁ is passed, while an example has been shown where repeated be operated during the set heating time Th 5 hot air supply device, wherein the control arrangement can be variously modified. For example, a temperature sensor for detecting the temperature in the processing tank 3 may be provided, and the operation and stop of the hot air supply device 5 may be performed so that the temperature detected by the temperature sensor is maintained in a predetermined range.

The specific configuration of the hot air supply device 5 can be variously changed in addition to the configuration shown in the above embodiment.
For example, the outer peripheral portion of the processing tank 3 may be heated by an electric heater.

Set heating time Th, set stirring time T
b and the set stop times T ₁ and T ₂ are appropriately set in order to efficiently ferment garbage.

In the above-described embodiment, a case where sawdust is applied is illustrated as a specific example of the moisture adjusting material. However, various other materials can be applied. For example, any harmless and water-retaining materials such as mineral powders, granules, and rice hulls may be used.

Incidentally, reference numerals are written in the claims for convenience of comparison with the drawings, but the present invention is not limited to the configuration of the attached drawings by the entry.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram of a garbage fermentation treatment apparatus according to an embodiment of the present invention.

FIG. 2 is a diagram showing a flowchart of garbage fermentation processing control.

FIG. 3 is a diagram showing a flowchart of garbage fermentation processing control.

[Explanation of symbols]

 Reference Signs List 3 processing tank 4 stirring means 5 heating means 81 stirring control means 82 heating control means 1S input detection means

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Susumu Katase, Osaka Gas Co., Ltd. 4-1-2 Hirano-cho, Chuo-ku, Osaka-shi (72) Inventor Koji Nagashima 4-chome, Hirano-cho, Chuo-ku, Osaka-shi, Osaka No. 1-2 Examiner, Osaka Gas Co., Ltd. Koichi Nakano (56) References JP-A-61-211201 (JP, A) JP-A-4-193381 (JP, A) JP-A-4-40273 (JP, A) (58) Field surveyed (Int. Cl. ⁷ , DB name) B09B 3/00

Claims (3)

(57) [Claims] 1. A processing tank (3) containing garbage and a moisture adjusting material for adjusting the water content of the garbage, heating means (5) for heating the processing tank (3), and the processing tank (3) A garbage fermentation treatment apparatus provided with heating control means (82) for controlling the heating operation of the heating means (5) so as to maintain the inside at a temperature for promoting fermentation of garbage, The heating control means (82) includes an input detection means (1) for detecting that garbage is input into the processing tank (3).
A garbage fermentation treatment apparatus configured to stop the heating operation of the heating means (5) based on the detection information of S) when the garbage is not supplied for a set time for standby, when the garbage is not charged. 2. The heating control means (82) heats the heating means (5) for a set heating time when the input detection means (1S) detects that raw garbage has been input. Each time the set stop time elapses after the operation of the heating means (5) is stopped, the heating means (5) is heated for a set heating time, whereby the processing tank (3) is heated.
The garbage fermentation treatment apparatus according to claim 1, wherein the inside is maintained at a temperature for promoting garbage fermentation. 3. A stirring means (4) for stirring garbage and a water conditioning material in the treatment tank (3), and the stirring means (4).
Stirring control means (81) for controlling the operation of
The stirring control means (81) operates during the heating operation of the heating means (5) before the standby time elapses, and operates the heating means (5) after the standby time elapses. The garbage fermentation treatment apparatus according to claim 1 or 2, wherein the stirring means (4) is operated during any stop.