JPH08112581A - Crude refuse treating device - Google Patents

Abstract

PURPOSE: To provide a crude refuse treating device which does not require a treatment of compost and is surely capable of treating crude refuse. CONSTITUTION: The crude refuse thrown in a crude refuse treating vessel 90 is agitated together with the soil bacteria or enzyme, etc., for decomposing the crude refuse to water and carbon dioxide in an arrow 160 direction by stirring vanes 63. A moisture sensor 40 detects the moisture of the crude refuse and sends the detected moisture to a control circuit 80. Such control as to send drying air over the entire part in the crude refuse treating vessel 90 from a drying machine 70 is executed when the moisture of the crude refuse is judged to exceed 70% in the control circuit 80. The moisture of the crude refuse in the crude refuse treating vessel 90 is evaporated by the drying air and is discharged outside the device 100 through a discharge fan 50, by which the moisture is lowered. On the other hand, a stop signal is sent to the drying machine 70 to stop blasting when the moisture of the crude refuse is judged to fall below 40% in the control circuit 80. As a result, the moisture of the crude refuse is always adequately maintained.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a food waste processing apparatus, and more particularly to ensuring food waste disposal.

[0002]

2. Description of the Related Art A typical example of an apparatus for treating food waste is a device for composting food waste. Usually, when composting food waste using a food waste treatment device,
Put garbage into the processing equipment and perform a predetermined operation. That is, the thrown food waste is agitated in the processing device, and is composted after a certain period of time due to the action of microorganisms (bacteria) in the processing device. The compost produced as a result of such treatment is used for home gardens and the like in general households. It should be noted that the food waste processing device is rapidly becoming widespread with the increasing awareness of environmental problems in recent years and the move toward the charge for food waste collection in some large cities.

[0003]

However, the conventional food waste processing apparatus has the following problems. In households that do not use kitchen gardens, the compost treated with the garbage disposal device must be discarded as garbage. In addition, at the restaurant, even if the food waste is processed, the compost must be requested to a contractor and discarded as industrial waste.
Since the compost is stored until it is collected, there is a problem that a storage space is taken and a foul odor drifts. Further, in a restaurant in a high-rise building, there is a problem that it takes time to carry out the compost even when using the garbage processing device.

In addition to such a food waste treatment device for composting food waste, a device for converting the food waste into water and carbon dioxide by microorganisms has been proposed. However, in such a food waste processing apparatus, water and carbon dioxide gas are generated by the processing, and thus the generated water may suffocate the microorganisms in the food waste processing apparatus and kill them. Therefore, when actually using such a food waste processing device, the water content in the device is judged by the operator.
Necessary processing was performed.

However, even in this case, it is often the case that a person operating the device cannot properly control the water content, and the microorganisms in the device are killed. When the microorganisms in the food waste processing device die, there is a problem that the food waste cannot be processed thereafter, and a device capable of surely processing the food waste has not been realized yet.

[0006] Therefore, an object of the present invention is to provide a food waste processing apparatus which does not require compost processing and can surely process food waste.

[0007]

According to a first aspect of the present invention, there is provided a food waste disposal system, wherein a housing, an agitating means provided in the housing for agitating an object to be processed, and a water content of the object to be agitated by the agitating means. Moisture detecting means for detecting, receiving a moisture signal from the moisture detecting means, outputs an operation signal when the water content of the object to be processed is above a predetermined value, and outputs a stop signal when the water content of the object to be processed is below a predetermined value. The present invention is characterized in that it is provided with a control means for outputting and a drying means for receiving the operation signal from the control means to perform the drying operation of the object to be processed, and receiving the stop signal to stop the operation.

According to a second aspect of the present invention, there is provided the garbage disposal according to the first aspect, wherein the housing is provided with an exhaust means.

[0009]

In the food waste processing apparatus according to the first aspect of the present invention, the water content of the object stirred by the agitation means is detected by the water content detecting means, and the control means receiving the water signal from the water content detecting means is the object to be processed. When the water content is above a predetermined level, an operation signal is output, and when the water content is below a predetermined level, a stop signal is output. Further, the drying means receives the operation signal to perform the drying operation of the object to be processed, and receives the stop signal to stop the operation. Therefore, the water content of the object to be treated can be kept within an appropriate range.

According to the second aspect of the present invention, the food waste processing apparatus is provided with the exhaust means in the housing. Therefore, it is possible to discharge moisture and gas generated by the processing to the outside.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a perspective view showing the outer shape of an embodiment of a food waste processing apparatus according to the present invention. This garbage processing device 1
00 is provided with a lid 95, which is opened in the direction of arrow 150 to throw in garbage. Moreover, the perspective view which shows the internal structure of the food waste processing apparatus 100 is raised in FIG. In the food waste processing device 100, a food waste processing container 90 which is a casing, a control circuit 80 which is a control unit, and a dryer 70 which is a drying unit.
Also, a motor 60 is provided as a part of the stirring means.

A chain 68, which is a part of stirring means, is connected to the motor 60, and a stirring shaft 65 is connected to the chain 68 via a sprocket wheel 66. Further, the stirring shaft 65 penetrates the garbage processing container 90 and has a plurality (five) of stirring blades 63 at different positions and angles (see FIG. 2). On the other hand, fixed blades 61 are provided on the inner surface of the garbage processing container 90.

Further, in the garbage processing container 90, a moisture sensor 40 as a moisture detecting means and an exhaust fan 50 as an exhausting means are provided. The moisture sensor 40 of this embodiment uses an electrostatic capacitance type sensor (which detects moisture contained in raw garbage by detecting the electrostatic capacitance of the raw garbage). The drying air outlet (not shown) of the dryer 70 is directed to the entire inside of the garbage processing container 90.

FIG. 3A shows a plan view of such a garbage processing apparatus 100, and FIG. 3B shows a side view thereof. In addition, in this figure, for convenience of description, a part of the garbage processing container 90, the chain 68, the sprocket wheel 66, and the like are not shown.

Next, the connection between the circuits in the food waste processing apparatus 100 will be briefly described. FIG. 4 shows connections between main circuits in the food waste processing device 100 of the present invention. The moisture sensor 40 is connected to the control circuit 80 and continues to send a moisture signal. The control circuit 80 is also connected to the dryer 70 and sends an operation signal or a stop signal to the dryer 70 based on the moisture signal. Besides, a motor 60 and an exhaust fan 50 are connected to the control circuit 80, and each is controlled by the control circuit 80.

The processing operation of the food waste processing apparatus 100 will be described below with reference to the drawings. When performing garbage processing, first, the lid 95 of the garbage processing device 100 is moved to the arrow 15
Open in the 0 direction, and put food waste, which is the object to be processed, into the food waste disposal container 90. In the garbage processing container 90, a combination of soil bacteria or enzymes, which decomposes garbage into water and carbon dioxide gas (hereinafter referred to as soil bacteria etc. in the present embodiment), is chaffed. It is built in mixed with (bacterial bed).

A switch is connected to a hinge (not shown) that connects the lid 95 to the main body of the garbage processing device 100, and detects opening / closing of the lid 95. This switch stops the motor 60 with the lid 95 open for safety. When the lid 95 is closed after the garbage is put in,
The motor 60 is driven. The rotation of the motor 60 is controlled by the chain 68 and the sprocket wheel 66 through the stirring shaft 6
5 is transmitted. As a result, the stirring shaft 65 moves to the arrow 16
It rotates in the 0 direction at a constant speed (see FIGS. 2 and 3B).

As the stirring shaft 65 rotates, the stirring blade 63 also rotates in the direction of arrow 160. By the rotation of the stirring blade 63,
The raw garbage in the raw garbage processing container 90 is agitated in the direction of arrow 160 together with soil fungi mixed in the chaff. At the time of this agitation, a large piece of food waste (for example, cabbage core) is sandwiched in a space BT with the fixed blade 61 provided on the inner surface of the food waste processing container 90 and finely crushed ( See FIG. 3A). The finely crushed food waste is decomposed into water and carbon dioxide by the decomposition of soil bacteria.

The water content of the food waste in the process of decomposition by soil bacteria rapidly increases. A part of this water is absorbed by rice husks, but most of the water is undigested water. The water sensor 40 provided in the raw garbage processing container 90 detects the water in the raw garbage stirred by the stirring blade 63. That is, the moisture signal output to the control circuit 80 includes the moisture value of food waste.

Usually, the decomposition of food waste by soil fungi used in this example is not carried out due to excessive water content when the water content of the food waste exceeds 70%, and is caused by dryness when the water content thereof falls below 30%. Will not be done in. From this, when the water content of raw garbage exceeds 70% or falls below 30%, it is necessary to adjust the water content of raw garbage.

For example, when the control circuit 80 determines that the water content of the garbage exceeds 70%, the control circuit 80 sends an operation signal to the dryer 70. The dryer 70
Upon receiving an operation signal from the control circuit 80, the operation is started, and the warm air is sent into the entire garbage processing container 90. The warm air evaporates the water content of the food waste stirred in the food waste processing container 90, and the water is discharged to the outside of the apparatus 100 through the exhaust fan 50. At this time, the odor and carbon dioxide gas generated by the decomposition up to that time are also forcibly discharged out of the apparatus at the same time, so that they do not fill the inside of the apparatus, and no bad odor will drift. In addition, warm air is treated as a food waste container 90
If you continue to feed the garbage inside, the garbage will dry and the water content will drop.

The change in water content of the food waste as described above is
It is constantly detected by the moisture sensor 40 and sent to the control circuit 80 as a moisture signal. For example, when the control circuit 80 determines that the water content of the food waste has fallen below 30%, the control circuit 80 sends a stop signal to the dryer 70. The dryer 70 stops its operation upon receiving a stop signal from the control circuit 80, and immediately stops blowing air. Although the water content of the food waste does not evaporate due to the stop of the air flow, the water content of the food waste is gradually increased by the decomposition because the water content of the food waste is agitated by the stirring blades 63 even when the air supply is stopped. become.

In this way, the water content of the food waste detected by the water content sensor 40 is evaporated by the operation of the dryer and is discharged to the outside of the apparatus by the exhaust fan.
The water content of food waste can always be maintained appropriately. Therefore, it becomes possible to promote the action of the microorganisms in the apparatus and perform a reliable garbage disposal. Also, by the exhaust fan,
The odor and carbon dioxide gas generated by the decomposition are also forcibly discharged to the outside of the apparatus, so that the inside of the apparatus is not filled with them and no foul odor is generated.

FIG. 5 is a graph showing the relationship between the water content of the food waste detected by the water content sensor 40 and the capacitance.
This data is data when the moisture sensor 40 provided in the raw garbage processing container 90 is operated at a measurement frequency of 1 MHz and the moisture of the raw garbage is changed and measured. Here, the capacitance value when the water content of the garbage is 30% is
4.47 pF, the capacitance value when the water content is 40% is 8.48 pF, and the value when the water content is 50% is
The value when the water content is 11.3 pF and the water content is 60% is 16.5 pF.
When F and moisture are 70%, it becomes 46.0 pF. As this graph shows, the relationship between the water content of food waste and the capacitance is proportional. From this data, it is understood that the moisture of the food waste can be accurately detected by using the capacitance type moisture sensor 40 in the present embodiment.

Incidentally, FIG. 6 is a graph showing the relationship between the water content and the resistance value of food waste when a conductivity type (resistance value measurement) sensor is used as the water content sensor 40. Also in this case,
The data is data when the moisture sensor 40 provided in the raw garbage processing container 90 is operated at a measurement frequency of 1 MHz and the moisture of the raw garbage is changed and measured. When the water content of the garbage is 30%, the resistance value is 67.1 kilohms,
The resistance value when the water content is 40% is 6.37 kOhm, the resistance value when the water content is 50% is 2.39 kOhm, and the resistance value when the water content is 60% is 1.45 kOhm. If the water content is 70%, it will be 283 ohms. As this graph shows, the relationship between the water content and the resistance value of food waste is inversely proportional. From this data, it can be understood that the water content of the food waste can be accurately detected by using the conductivity type sensor as the water content sensor 40 in this embodiment.

Therefore, it is possible to detect the change in water content of food waste reliably and accurately by using any type of sensor. As a result, by accurately detecting the water content of the food waste, it is possible to promote the action of the microorganisms in the food waste processing apparatus 100 of the present embodiment and perform a reliable food waste treatment.

In this embodiment, the moisture sensor 40 is provided on the side wall of the garbage processing container 90 and above the fixed blade 61. However, other positions may be used as long as the water content of the food waste can be accurately and reliably detected, for example, below the fixed blades 61 or the food waste processing container 90.
It may be provided on another side wall inside.

In the present embodiment, the operation of the drier is started when the water content of raw garbage exceeds 70%,
If it is less than%, it will be performed. However, the dryer may be operated in another range as long as the decomposition of the food waste by soil bacteria can be surely performed. For example, when the water content exceeds 40%, the dryer is operated, ,
The operation of the dryer may be stopped when the water content falls below 35%.

Further, in this embodiment, a dryer is used as the drying means. However, other materials may be used as long as the water content of the food waste can be reliably adjusted. For example, a warm air fan or a heater may be used.

Further, in this embodiment, as described above, the capacitance type is used for the moisture sensor, and the conductivity type is proposed as an alternative. However, other types of sensors may be used as long as they can accurately detect the water content of food waste, and for example, an infrared moisture meter or a microwave sensor may be used.

Further, in this embodiment, the stirring shaft 65
Five agitating blades were provided to the agitator to stir the food waste. However, if it is possible to surely stir the garbage, the number may be more than 5 or less than 5.

Further, in this embodiment, an exhaust fan 50 is used as an exhaust means. However, other substances may be used as long as they reliably discharge the water content of the food waste inside the device and also the odor and carbon dioxide gas generated by decomposition outside the device, for example, ozone generation type, activated carbon type, ion exchange type. Alternatively, a chemical deodorizer or a moisture absorber may be used.

Furthermore, in this embodiment, chamomile is used as a bed of soil fungi and the like. However, other substances may be used as long as soil bacteria or the like are cultured in the fungus bed and stirred together with garbage, and for example, sawdust or sawdust may be used.

In the above embodiments, the case of using soil fungi which decomposes garbage into carbon dioxide gas and water has been described. However, other than microorganisms such as soil bacteria, other microorganisms or bacteria may be used as long as they can decompose food waste into water and carbon dioxide. Further, in the above embodiment, the case of decomposing food waste into carbon dioxide gas and water has been described.
INDUSTRIAL APPLICABILITY The present invention can be applied to all food waste processing apparatuses that require an appropriate adjustment of water content. For example, it can be applied to the case of using a microorganism that produces water together with compost.

[0035]

In the food waste processing device according to the first aspect of the present invention, the water content of the object stirred by the agitation means is detected by the water content detecting means, and the control means receives the water signal from the water content detecting means. An operation signal is output when the water content of the object to be processed is above a predetermined value, and a stop signal is output when the water content is below a predetermined value. Further, the drying means receives the operation signal to perform the drying operation of the object to be processed, and receives the stop signal to stop the operation. The control means controls the drying operation of the drying means based on the water content of the object to be processed detected by the water content detection means. That is, the water content of the object to be treated can be kept within an appropriate range. Therefore, it becomes possible to promote the action of the microorganisms in the apparatus and perform a reliable garbage disposal.

In the garbage disposal according to the second aspect, the exhaust means is provided in the housing. That is, it is possible to discharge moisture and gas generated by the processing to the outside. Therefore, the water content of the object to be treated can be appropriately maintained, the gas does not fill the inside of the processing apparatus, and the malodor does not drift.

[Brief description of drawings]

FIG. 1 is a perspective view showing an outer shape of an embodiment of a food waste processing device according to the present invention.

FIG. 2 is a perspective view showing an internal configuration of a food waste processing device 100 shown in FIG.

FIG. 3 is a plan view and a side view of a food waste processing device 100 according to the present embodiment.

FIG. 4 shows connections between main circuits in the food waste processing device 100 according to this embodiment.

FIG. 5 is a graph showing the relationship between the water content of a food waste detected by a water sensor 40 and the capacitance.

FIG. 6 is a graph showing a relationship between water content and resistance value of food waste when a conductivity type sensor is used as the water content sensor 40.

[Explanation of symbols]

 40 ... Moisture sensor 63 ... Stirring blade 70 ... Dryer 80 ... Control circuit 90 ... Garbage disposal container

Claims (2)

[Claims] 1. A casing, a stirring unit provided inside the casing for stirring a substance to be treated, a moisture detecting unit for detecting moisture of the substance to be treated stirred by the stirring unit, and a moisture signal from the moisture detecting unit. Receiving an operation signal from the control means, which outputs an operation signal when the water content of the object to be processed is above a predetermined value and outputs a stop signal when the water content of the object to be processed is below a predetermined value. And a drying means for stopping the drying operation upon receiving a stop signal. 2. The food waste processing apparatus according to claim 1, wherein the housing is provided with an exhaust unit.