JPH09220554A - Garbage treatment apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To accelerate the activation of bacteria when garbage is charged by opening a lid in the weakest operation mode state. SOLUTION: A plurality of control modes controlled by a control means consist of a usual operation mode wherein a garbage treatment material is operated at a set temp. or higher for a definite time from a point of time when the lid 10 of a garbage treatment tank 1 is closed, the weakest operation mode changed over from the usual operation mode after a definite time is elapsed from the point of time when the lid 10 of the garbage treatment tank 1 is closed or at a point time when the garbage treatment material becomes the set temp. or lower and a rising operation mode raising the temp. of a surface heater 6 to the temp. thereof or higher in the usual operation mode when the lid 10 is opened during the operation of the weakest operation mode or the moisture content of the garbage treatment agent becomes set moisture content or more.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a garbage disposal apparatus for decomposing garbage using the power of microorganisms.

[0002]

2. Description of the Related Art Conventionally, sludge containing organic matter and water has been decomposed (fermented) to the extent that it does not affect the environment by utilizing microorganisms. Are known. In this food waste processing device, a wood chip called a biochip (see, for example, Japanese Patent Publication No. 2-30760) is filled in a food waste processing tank as a food waste processing material. Raw garbage is put into the raw garbage treatment tank through an input port provided in the raw garbage treatment tank, and the microorganisms inhabiting the raw garbage processing material ferment the raw garbage to decompose it.

Here, in the prior art, a stirring means for stirring the food waste processing material in the food waste processing tank of the food waste processing device, and a blower fan for supplying outside air into the food waste processing tank. , A heater for warm air to heat the outside air, a surface heater for heating the inside of the garbage processing tank, and an exhaust fan for discharging exhaust gas generated in the garbage processing tank to the outside. The processing means is provided and is controlled by the control means so as to operate according to the conditions set in the plurality of operation modes. That is, as the plurality of control modes controlled by the control means, a normal operation mode in which the garbage processing material is operated for a certain period of time from the time when the lid of the garbage processing tank is closed or the garbage processing material is at a set temperature or more, There is a weakest operation mode that is operated by switching from the normal operation mode after a certain time has elapsed from the time when the lid of the food waste disposal tank was closed or when the food waste disposal material became below the set temperature. By providing the weakest operation mode in
When the garbage processing is almost completed, the operation of the processing means is made weaker than the normal operation to reduce the energy cost.

Here, the normal operation mode is an operation mode for processing a normal amount of food waste when a normal amount of food waste is thrown in, and includes a stirring means, a blower fan, a warm air heater,
The processing means such as the surface heater and the exhaust fan are operated based on the set conditions. The weakest operation mode is an operation mode that is performed after a normal amount of food waste is operated in the normal operation mode for a certain period of time and most of it is decomposed, and when the amount of food waste to be processed is small. Therefore, compared with the normal operation mode, the operating time and the number of times of the processing means such as the stirring means, the blowing fan, the warm air heater, the surface heater, and the exhaust fan are reduced to save energy.

[0005]

However, as described above, in the mode in which the energy cost is reduced after the normal operation mode is set to the weakest operation mode,
When the lid is opened during normal operation and a normal amount of food waste is added, the microorganisms inhabiting the food waste treatment material are activated, so the input food waste can be effectively treated.
If the lid is opened during the weakest operation mode and new food waste is thrown in, or if there is a large amount of water in the weakest operation mode, it may take a long time to process, or the decomposition process may not be possible. there were.

The present invention has been made in view of the above-mentioned problems of the conventional example, and in which the energy cost is reduced by providing the weakest operation mode, the lid is opened in the weakest operation mode. It is an object of the present invention to provide a food waste processing device capable of accelerating the activation of microorganisms when the food waste is opened and thrown in or when the amount of water is large in the weakest operation mode.

[0007]

Means for Solving the Problems In order to solve the above-mentioned problems of the present invention, a raw garbage processing apparatus of the present invention decomposes raw garbage with a raw garbage processing material placed in a raw garbage processing tank 1. The waste treatment device 2 includes a stirring means 3 for stirring the raw waste treatment material in the raw waste treatment tank 1, a blower fan 4 for supplying the outside air into the raw waste treatment tank 1, and the outside air. Such as a warm air heater 5 for making wind, a surface heater 6 for heating the inside of the garbage processing tank 1, an exhaust fan 7 for discharging the exhaust gas generated in the garbage processing tank 1 to the outside, etc. Processing means 8 and control means 9 for controlling the processing means 8 to operate in accordance with the conditions set in a plurality of operation modes.
In the food waste processing apparatus 2 provided with a plurality of control modes controlled by the control means 9, the lid 1 of the food waste processing tank 1 is controlled.
The normal operation mode in which the garbage processing material is operated for a certain period of time from the time when 0 is closed, or when the raw garbage processing material is operating at a temperature above the set temperature The weakest operation mode in which the processing material is switched from the normal operation mode when the temperature of the processing material becomes equal to or lower than the set temperature, and the lid 10 opens during the operation of the weakest operation mode or the water content of the food waste processing material is set. The present invention is characterized by including a start-up operation mode for raising the surface heater 6 above the temperature of the surface heater 6 in the normal operation mode when the amount of water becomes equal to or more. By adopting such a configuration, the lid 10 is operated when the energy cost required for operation is reduced by the weakest operation mode operation.
If you open the room and add garbage, or if the water content is high,
In the startup operation mode, the temperature of the surface heater 6 is raised above the temperature of the surface heater 6 in the normal operation mode to rapidly activate the microorganisms, and effective garbage processing can be performed.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail based on embodiments shown in the accompanying drawings. FIG. 1 is a perspective view showing the whole food waste processing apparatus 2, and FIG. 2 is a control block diagram. A raw garbage processing tank 1 having an upper opening is internally provided in a case 11 having an upper opening of the raw garbage processing device 2. Inside the raw garbage processing tank 1, a stirring blade constituting a stirring means 3 is rotatable. It is decorated. The stirring blade is rotated by the motor 25, and the rotation of the motor 25 is controlled by the control means 9. By stirring the raw garbage processing material 2 placed in the raw garbage processing tank 1 with the stirring means 3, oxygen is evenly supplied to the raw garbage processing material 2 located in the lower part of the raw garbage processing tank 1 and the raw garbage is also generated. Each part in the garbage processing tank 1 is uniformly dispersed and mixed.

The upper end opening of the case 11 serves as a throw-in port, and the throw-in port is provided with a lid 10 for throwing food waste which is rotatable about a shaft mounting portion at a rear end and can be opened and closed. There is.
The case 11 is provided with a lid opening / closing detecting means 12 such as a reed switch for detecting opening / closing of the lid 10, and a detection signal of opening / closing of the lid 10 is input to the control means 9.

An air passage 13 is provided at the opening edge of the upper end of the case 11. One end of the air passage 13 is open to the outside of the case 11 and the other end is the upper end opening of the garbage processing tank 1. It is open to. Outside air is disposed in the air passage 13 as a garbage treatment tank 1
A blower fan 4 for supplying the inside air and a warm air heater 5 for turning the outside air into warm air are internally provided.
1. The heater 5 for warm air is controlled by a signal from the control means 9. The blower fan 4 supplies fresh air into the garbage processing tank 1 by supplying outside air into the garbage processing tank 1, and the heater 5 for hot air supplies external air into the garbage processing tank 1. This is to make the outside air warm air when the temperature is low.

An exhaust passage 14 is provided in the case 11. One end of the exhaust passage 14 is open to the upper end opening of the garbage processing tank 1 and the other end is opened to the outside of the case 11.
An exhaust fan 7 is installed in the exhaust passage 14, and the exhaust fan 7 is controlled by a signal from the control means 9. The exhaust fan 7 is for exhausting gas and moisture generated by decomposition of carbon dioxide and ammonia generated in the garbage processing tank 1 to the outside. A surface heater 6 is attached to the outer surface of the lower part of the food waste processing tank 1.

The stirring means 3, the blower fan 4,
The warm air heater 5, the exhaust fan 7, and the surface heater 6 constitute a garbage processing means 8 made of a garbage processing material. In the garbage processing tank 1, a garbage processing material made of a carrier such as sawdust-like woody chips called a biochip in which microorganisms have inhabited is placed. As the garbage disposal material, conventionally known woody flakes (for example, Japanese Patent Publication No. 2-30760) can be used.

Further, a water sensor 15 and a temperature sensor 16 for detecting environmental conditions in the food waste processing tank 1 are provided in the food waste processing tank 1. The moisture sensor 15 detects the amount of water in the raw garbage processing material 2 in the raw garbage processing tank 1, and the temperature sensor detects the temperature of the raw garbage processing material. Information is input to the control means 9.

In the food waste processing apparatus 2 having the above-described structure, in the present invention, a plurality of control modes controlled by the control means 9 are set for a fixed time after the lid 10 of the food waste processing tank 1 is closed. Between the normal operation mode in which the raw garbage processing material is operated at a temperature above the set temperature, and after a certain period of time has passed from the time when the lid 10 of the raw garbage processing tank 1 was closed or the raw garbage processing material fell below the set temperature. At the time, when the lid 10 is opened during the operation of the weakest operation mode which is switched from the normal operation mode to the operation, or when the water content of the food waste processing material is equal to or more than the set water content, A start-up operation mode for raising the temperature of the surface heater 6 above the temperature of the surface heater 6 in the normal operation mode is provided.

That is, FIG. 3 shows a flow chart of the operation of the food waste processing apparatus 2 of the present invention. As shown in this flow chart, in the normal operation mode, the control means 9 controls the normal operation mode to perform the normal operation. When the operation is performed (that is, when a normal amount of garbage is input, the stirring means 3, the blower fan 4, the warm air heater 5, the exhaust fan 7, and the surface heater 6 are turned on based on the conditions set in the normal operation mode. ,, normal operation is done by doing the off operation). In this normal operation mode, when a certain time has elapsed after the lid opening / closing detection means 12 detects the closure of the lid 10, it is considered that the normal amount of food waste has been mostly decomposed in the normal operation mode, and the weakest operation is performed by the control means 9. The mode is switched to perform the weakest operation (that is, the stirring means 3, the blower fan 4, the warm air heater 5, the exhaust fan 7, and the surface heater 6 are turned on and off based on the conditions set in the weakest operation mode. If the amount of food waste is small even when a fixed time has not elapsed after the lid opening / closing detection means 12 detects the closing of the lid 10, the normal operation is performed by performing the operation. Since the fermentation temperature does not rise, the food waste treatment material is below the set temperature (that is, when the set temperature is T _s and the detected temperature of the food waste treatment material is T _s , T _s >
In the state of T), the same weakest operation mode control as described above is performed. On the other hand, when the detected temperature of the food waste treatment material is equal to or higher than a certain temperature, it is considered that the decomposition processing by fermentation is actively performed in the normal operation mode, and the normal operation mode is continued. On the other hand, in the weakest operation mode, energy saving is achieved by reducing the operation time and the number of times of the processing means 8 of the stirring means 3, the blower fan 4, the warm air heater 5, the exhaust fan 7, and the surface heater 6 as compared with the normal operation mode. The lid 1 is operated during this weakest operation mode.
0 opens (that is, it is considered that new food waste has been added) or the water content of the food waste treatment material is greater than or equal to the set water content (that is, the set water content is G _s and the detected water content of the food waste disposal material is G
In this case, if G> G _s ) then the control means 9
Is switched to the startup operation mode by. In this start-up operation mode, the agitator 3, the blower fan 4, the warm air heater 5, and the exhaust fan 7 are controlled in the same manner as the normal operation mode, but the surface heater 6 raises the temperature higher than in the normal operation mode. In this way, by controlling the surface heater 6 to rise to a temperature higher than that in the normal operation mode in the start-up operation mode, the microorganisms inhabiting the food waste treatment material can be controlled in a short time. It activates. The start-up setting mode is controlled by the control means 9 so as to shift to the normal operation mode when a certain period of time T _t or the temperature of the food waste treating material exceeds a set temperature. In FIG. 3, in the initial processing, it is confirmed whether or not the power of the food waste processing device 2 is turned on.

[0016]

As described above, according to the present invention, a plurality of control modes controlled by the control means are used for a certain period of time from when the lid of the garbage disposal tank is closed or when the garbage disposal material is used. The normal operation mode is operated at a temperature above the set temperature, and the normal operation mode is switched after a certain period of time has passed since the lid of the food waste treatment tank was closed or when the food waste processing material became below the set temperature. If the lid is opened or the water content of the garbage processing material exceeds the set water content during the operation of the weakest operation mode and the weakest operation mode, the surface heater is Since it has a startup operation mode that raises the temperature above the temperature, when the lid opens in the weakest operation mode or the water content of the food waste treatment material exceeds the set water content, that is, the food waste is newly added. Input or moisture When there is a large amount of waste, by setting the surface heater to a startup operation mode that raises the temperature of the surface heater above that in the normal operation mode before shifting to the normal operation mode, the microorganisms inhabiting the food waste treatment material can be shortened. It can be activated with time to accelerate the decomposition of food waste, and the time for processing food waste can be shortened.

[Brief description of drawings]

FIG. 1 is a schematic perspective view showing the entire garbage processing apparatus of the present invention.

FIG. 2 is a control block diagram of one embodiment of the above.

FIG. 3 is a flowchart of the above.

[Explanation of symbols]

 1 Garbage Disposal Tank 2 Garbage Disposal Device 3 Stirring Means 4 Blower Fan 5 Hot Air Heater 6 Surface Heater 7 Exhaust Fan 8 Treatment Means 9 Control Means 10 Lid

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kaoru Yamashita 1048 Kadoma, Kadoma, Osaka Prefecture Matsushita Electric Works Co., Ltd. (72) Yoshihide Yoshikawa, 1048 Kadoma, Kadoma City, Osaka Matsushita Electric Works Co., Ltd. 72) Inventor Masakatsu Nakamura 1048, Kadoma, Kadoma, Osaka Prefecture Matsushita Electric Works Co., Ltd. (72) Hiroyasu Kawanishi, 1048, Kadoma, Kadoma City, Osaka Matsushita Electric Works Co., Ltd. (72) Inventor, Kenji Esashi Osaka Fudomon City, 1048 Kadoma, Matsushita Electric Works Co., Ltd. (72) Inventor, Koichi Fujita 1048 Kadoma, Kadoma City, Osaka Prefecture, Matsushita Electric Works, Ltd. (72) Takashi Hyodo, 1048, Kadoma, Kadoma City, Osaka Matsushita Denko stock company

Claims (1)

[Claims] 1. A food waste disposing apparatus for decomposing food waste by a food waste disposing material placed in a food waste disposing tank, and a stirring means for agitating the food waste disposing material in the food waste disposing tank. With a blower fan for supplying outside air into the garbage processing tank, a heater for warm air to heat the outside air, a surface heater for heating the inside of the garbage processing tank, and a garbage processing tank In a food waste processing apparatus provided with a processing means such as an exhaust fan for discharging generated exhaust gas to the outside, and a control means for controlling the processing means to operate according to conditions set in a plurality of operation modes , A plurality of control modes controlled by the control means, a normal operation mode in which the garbage processing material is operated for a certain period of time after the lid of the garbage processing tank is closed, or a state in which the garbage processing material is at a set temperature or more, From the time the lid of the processing tank is closed After a certain period of time or when the food waste processing material becomes below the set temperature, the operation is switched from the normal operation mode to the weakest operation mode, and the lid opens during the operation of the weakest operation mode or the garbage disposal A garbage disposal device, comprising: a start-up operation mode for raising the temperature of the surface heater above the temperature of the surface heater in the normal operation mode when the water content of the material exceeds a set water content.