JPH09271740A - Garbage disposal device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently decompose garbage by working the device at high frequency while undecomposed garbage remaining in filling materials after the garbage was charged into the filling materials, to decrease the frequency of the work after the lapse of long hours without being charged new garbage and to prevent waste of energy. SOLUTION: The disposal device is provided with a treating tank 3, an agitator 10 for stirring the contents of the treating tank 3, a heating device 8 for heating the contents of the treating tank 3 and a ventilation device 7 for ventilating the air in the treating tank 3. In this constitution, the garbage is charged into the filling materials 18 housed in the treating tank 3, and the filling materials 18 are intermittently stirred and while the device is heated properly and ventilated, the garbage is biologically decomposed. A means 16 for detecting opening and closing of a garbage charge port 4 is provided on this device and after the lapse of two or four days after the last close of the garbage charging port 4, the frequency of the work of the agitation device 10 is decreased.

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 device for processing food waste discharged at home to render it harmless.

[0002]

2. Description of the Related Art Generally, household waste is collected and treated collectively by local governments, but a large-scale treatment facility is required and the cost increases.
There are also bad odors and hygiene problems, which have become social problems.

[0003] Recently, therefore, there has been proposed a domestic food waste processing apparatus in which food waste is stored in a processing tank together with a filler, and the food waste is decomposed by the action of microorganisms.
Various products are commercially available.

For example, as an example thereof, Japanese Patent Laid-Open No. 5-660
The one described in Japanese Patent No. 32 is known. This thing accommodates a filler such as sawdust and raw garbage in the treatment tank, stirs the filler and raw garbage in the treatment tank with a stirring blade, ferments the raw garbage and decomposes it into microorganisms, It is something to process.

In this type of food waste treatment apparatus, when the food waste is decomposed by the action of microorganisms, it may be decomposed aerobically or anaerobically, but it has a high decomposition rate and a bad odor. In general, it is preferable to aerobically ferment and decompose in the presence of air, for the reason that the generation of

Therefore, in this type of food waste processing apparatus, a filler such as sawdust is placed in the treatment tank, and a stirring device for the filler is attached to the treatment tank to stir the filler, and In the cold season, a heater is attached to heat the filler to activate the action of microorganisms, and a ventilator is installed above the treatment tank to constantly supply fresh air to the treatment tank. ing.

[0007]

In this type of apparatus, when the filler in the treatment tank is agitated, fresh air is mixed into the filler to activate the activity of aerobic microorganisms. Therefore, it is not necessary to constantly stir, and the stirrer is intermittently operated every predetermined time.

However, immediately after mixing the food waste with the filler, it is preferable to frequently stir the filler in order to efficiently decompose the undecomposed food waste, but the food waste is decomposed after a considerable time. The lesser the amount of residual food waste, the less air is needed for the activity of the microorganisms, the less frequent agitation is required.

However, in the conventional food waste processing apparatus,
Since the frequency at which the agitator operates is fixed, even if a long time has passed after the garbage has been put in and there is almost no food residue left to be decomposed, the agitator operates at a certain frequency and wastes. Energy was wasted. Also in the heating device and the ventilation device, since the operating conditions are set based on the state immediately after throwing in the garbage,
It works under the same conditions even after the garbage has been decomposed.

[0010] Depending on the rhythm of life at home, there may be no garbage for several days, or there may be absent from home for a long period of time, but nevertheless, the garbage should always continue to operate under the condition immediately after being thrown in. Is not preferable from the viewpoint of energy saving.

The present invention has been made in view of the above circumstances, and operates at a high frequency while the undecomposed food waste remains in the filler after the food waste is put into the filler. The purpose of the present invention is to prevent the waste of energy by efficiently decomposing food waste and reducing the frequency of operation after a long time without introducing new food waste.

[0012]

The present invention provides a treatment tank with a stirring device for stirring the contents of the treatment tank, a heating device for heating the contents of the treatment tank, and air in the treatment tank. A ventilator is installed to ventilate the food, and the garbage is put into the filler contained in the treatment tank, the filler is agitated intermittently, and the garbage is heated and ventilated appropriately while the microorganism acts on the garbage in the treatment tank. In the processing device that is decomposed by, means for detecting the opening and closing of the food waste input port is provided, and the operation frequency of the stirring device is reduced 2 to 4 days after the food waste input port is finally closed. It is a feature.

In the present invention, it is preferable to reduce the operation frequency of the stirring device and the operation of the heating device and the exhaust device.

Further, in the present invention, after the frequency of operation of the agitating device is decreased, the agitating device, the heating device and the exhaust device are operated after a further 3 to 5 days have passed without opening the garbage input port. It is preferable to stop all of them.

Further, in the present invention, a start switch for starting the operation of the agitator is provided, and the agitator is operated by operating the start switch after closing the garbage input port and closing the garbage input port. After 30 minutes to 1 without operating the start switch
It is preferable that the stirring device is activated even after a lapse of time.

[0016]

Embodiments of the present invention will be described below with reference to the drawings. The drawings show a food waste processing apparatus 1 of the present invention, in which the food waste processing apparatus 1 has an exterior body 2 in which a cylindrical processing tank 3 is housed. The food waste input port 4 of the processing tank 3 is openably and closably closed by a lid 5. Further, 6 is a detection means for detecting the opening / closing of the lid 5.

A ventilation device 7 is provided above the processing tank 3, and a heater 8 as a heating device is attached to the outer periphery of the lower portion of the processing tank 3. A temperature sensor 9 is attached to the heater 8. It is fastened.

A stirring device 10 is provided at the bottom center of the processing tank 3.
Is provided. In the stirring device 10, a rotating arm 11 extending in the radial direction of the processing tank 3 is attached to a rotating shaft 11 provided upright on the bottom surface of the processing tank 3, and the rotating arm 12 is provided.
Is formed with a stirring blade 13 extending upward from the tip. The rotary shaft 11 is driven by a motor 15 via a chain 14.

A take-out port 16 communicating with the outside of the exterior body 2 is formed on the lower side surface of the processing tank 3, and the take-out port 16 is provided.
Is closed by a closing lid 17, and if necessary, the closing lid 1
7 can be opened to discharge the contents of the processing tank 3 from the outlet 16 and to clean the inside of the processing tank 3.

A filling material 18 such as sawdust is stored in the processing tank 3, and raw garbage 19 is put therein,
While stirring the filler 18 intermittently with the stirring device 10,
The heater 8 is appropriately heated, and the ventilation device 7 ventilates the air in the treatment tank 3 to decompose the garbage 19 microbiologically.

Reference numeral 20 is a start switch, which opens the lid 5 and puts in the garbage 19 from the garbage input port 4, closes the lid 5 and the detecting means 6 detects the closing of the lid 5, and then the start switch. 20 by operating the motor 15
Is driven, and the stirring device 10 is rotated. It is preferable that the outlet 16 is also provided with a detection means for detecting the opening / closing of the opening / closing lid 17 so that the stirring device 10 can operate only when the opening / closing lid 17 is closed.

Even when the start switch 20 is not operated, after the detection means 6 detects the closure of the lid 5, a predetermined time, for example, 30 minutes to 1 hour has elapsed,
It is preferable that the stirring device 10 automatically rotates.

The operation of the agitator 10 is for uniformly dispersing the garbage 19 in the filler 18 and supplying air into the filler 18 to activate the aerobic microorganisms. It doesn't have to keep working, it works intermittently. With respect to the operation frequency of the stirring device 10, it is suitable to operate for 3 to 7 minutes and then pause for 30 minutes to 2 hours.

The heater 8 adjusts the filling material 18 to a temperature condition in which aerobic microorganisms can be actively activated. The temperature of the filling material 18 is controlled by the temperature sensor 9 so that the temperature of the filling material 18 is 35 to 40. It is appropriate to set the temperature to be about ° C. Further, the ventilation device 7 discharges moisture and carbon dioxide gas generated by the decomposition of the garbage 19 to the outside of the device to ventilate it with fresh air, and depending on its ventilation capacity, it is always operated. Is good.

Thus, in the present invention, a timing circuit is provided in the operating circuit for driving the stirring device 10, the time after the detection means 6 detects the closure of the lid 5 is measured, and after a predetermined time has elapsed, The operation frequency of the stirring device 10 is reduced.

It is appropriate that the time until the operating frequency of the stirring device 10 is reduced after the lid 5 is closed is 2 to 4 days. If less than 2 days, raw garbage 19 remains in the filler 18, and if the operation of the stirring device 10 is reduced in this state, anaerobic microorganisms may act to cause the raw garbage 19 to rot and give off a bad odor. . After 4 days or more, the decomposition of the food waste 19 is almost completed, and operating the stirring device 10 at the initial operation frequency in that state is a waste of energy.

When the operating frequency of the stirrer 10 is reduced, the operating frequency of the stirrer 10 is 1 / of the initial operating frequency.
It is suitable to be about 3 to 1/5. That is, it is suitable to operate the stirring device 10 for about 3 to 7 minutes and then stop the operation for about 2 to 8 hours.

Further, it is preferable to reduce the operating conditions of the heater 8 and the ventilation device 7 as the operating frequency of the stirring device 10 is reduced. Since the amount of food waste 19 in the filling material 18 is greatly reduced, it is not necessary to particularly activate the activity of microorganisms, electricity to the heater 8 may be stopped, and heating to cold air or the like may be performed. Even if it is necessary to set it, it is better to lower the set temperature.

Since the generation of carbon dioxide gas and water due to the decomposition of the garbage 19 is small, it is not necessary to continuously ventilate with the ventilation device 7, and while the stirring device 10 is operating and for about 5 to 20 minutes thereafter. It is sufficient to operate the inter-ventilation device 7. Therefore, in other cases, it is preferable to stop the ventilation system.

Further, in the present invention, when the operating frequency of the agitator 10 is reduced and further 3 to 5 days have passed, the food waste 19 remaining in the filler 18 is almost completely decomposed and left. Therefore, it is preferable to stop all of the stirring device 10, the ventilation device 7 and the heater 8 in order to save energy.

Reference numerals 21, 22, and 23 are indicator lights for indicating energization, operation, and failure, respectively.
Is always on when power is on. Further, the operation indicator light 22 is turned on when the lid 5 is closed and the garbage processing device 1 is in an operating state, and blinks while the stirring device 10 is operating. Further, the failure indicator lamp 23 is normally off, and when the motor 15 is overloaded or the heater 8 is broken for some reason, the operation of the garbage processing device 1 is stopped and the failure indicator lamp 23 is turned on. It is supposed to do.

[0032]

In the food waste processing apparatus 1 of the present invention, the filler 18 such as sawdust is contained in the processing tank 3, and when the food waste processing apparatus 1 is turned on, a power-on indicator lamp 2 is provided.
1 is lit and the ventilation device 7 is operating.

When it becomes necessary to treat the food waste, the lid 5 is opened and the food waste 19 is put into the processing tank 3. When the lid 5 is opened, the operation indicator light 22 and the trouble indicator light 23 are off.

When the garbage 19 is put into the processing tank 3 and the lid 5 is closed, the detection means 6 detects it and the operation indicator lamp 22 is turned on. Then, by operating the start switch 20, the operation of the stirring device 10 is started and operates intermittently. While the stirring device 10 is operating, the operation indicator light 22
Flashes.

When the stirring device 10 is first operated after the lid 5 is closed, the stirring device 10 is operated for a longer period of time than the intermittent operation thereafter, and the charged garbage 19 is sufficiently filled.
It is preferable to disperse in

Even if the start switch 20 is not operated, the operation of the stirring device 10 is started when a predetermined time (30 minutes to 1 hour) has elapsed. It is possible to immediately start the operation of the stirring device 10 by closing the lid 5 and detecting it by the detection means 6, but an infant or a pet falls into the processing tank 3 with the lid 5 opened, and the impact thereof. Even if the lid 5 is closed with, it is extremely dangerous if the stirrer 10 is immediately activated.
It is preferable not to operate for a predetermined time unless the is operated.

After closing the lid 5, the start switch 20
It is possible to start the operation of the agitator 10 only by operating the, but if you forget to operate the start switch 20 after putting the garbage 19 and leave it for a long time, Is perishable and may give off a bad odor, which is not preferable.

When the raw garbage 19 is put into the processing tank 3 and stirred by the stirrer 10 to mix the raw garbage 19 with the filler 18, the raw garbage 19 is decomposed microbially. At this time, since fresh air is mixed into the filler 18 by stirring,
Aerobic microorganisms act, and garbage 19 fermented aerobically,
Excessive malodor does not occur.

The decomposition of the food waste 19 causes heat to heat the filling material 18, but the temperature of the filling material 18 is low at the beginning of use or in the cold season, and the activity of microorganisms is inactive. The filler 18 is heated in 8 and the temperature is controlled by the temperature sensor 9 to maintain the temperature at 35 to 40 ° C.

In the drawing, the temperature sensor 9 is attached to the heater 8, and the temperature sensor 9 has a temperature of about 35.degree.
It is appropriate that the heater 8 is energized by the following conditions, and the energization of the heater 8 is stopped by the temperature sensor 9 being about 50 ° C. or higher.

For a predetermined time after the start of energization of the heater 8,
For example, if the temperature sensor 9 does not detect a rise in temperature after 5 minutes, it is possible that the heater 8 is broken or the temperature sensor 9 does not operate properly. Doing so is dangerous because there is a possibility of heating and electric leakage. Therefore, the entire operation of the food waste processing device 1 is stopped, and the energization indicator lamp 21 and the operation indicator lamp 2
2 is turned off and the failure indicator lamp 23 is turned on to warn.

By directly attaching the temperature sensor 9 to the heater 8 as shown in the drawing, it is possible to directly detect the temperature rise state of the heater 8 by the temperature sensor 9, and to promptly detect the presence or absence of a break in the heater 8. You can Also, since the temperature of the heater 8 does not rise excessively,
The filler 18 near the heater 8 is not locally overheated, and the microorganisms are not killed.

Further, the temperature sensor 9 does not detect the temperature of the filling material 18, and when the temperature rises by energizing the heater 8,
The temperature sensor 9 detects the heat of the heater 8 and the heater 8
Since the electricity to the filler is cut off, the filling material 18 may not be sufficiently heated by one electricity application. However, if the temperature of the filling material 18 is low, the temperature of the heater 8 immediately drops after the energization is stopped, so that it is detected by the temperature sensor 9 so that the heater 8 is frequently energized, and the filling material 18 is effectively heated. To be done.

In this way, the filler 1 is mixed with the stirring device 10.
Filler 1 with heater 8 while stirring 8 intermittently.
By keeping 8 at an appropriate temperature and ventilating the air in the treatment tank 3 with the ventilation device 7, the garbage 19 is decomposed by the action of aerobic microorganisms. The operating frequency of the stirring device 10 is appropriately such that after operating for 3 to 7 minutes, it is repeated for 30 minutes to 2 hours.

The time counting circuit provided in the operating circuit of the food waste processing apparatus 1 measures the time after the detecting means 6 finally detects that the lid 5 is closed. If the lid 5 is opened in the middle of the process, it is detected by the detecting means 6 to reset the timing circuit, and the detecting means 6 detects that the food waste 19 is newly introduced and the lid 5 is closed. To restart timing again.

After the lid 5 is finally closed, if the predetermined time (2 to 4 days) elapses without opening the lid 5, the operation frequency of the stirring device 10 is reduced to 1/3 to 1/5. Let
The operating frequency of the stirrer 10 after the decrease is appropriate such that the agitating device 10 operates for 3 to 7 minutes and then pauses for 2 to 8 hours.

As the operating frequency of the stirring device 10 is reduced, the operating conditions of the ventilation device 7 and the heater 8 are also reduced. The ventilation device 7 operates while the stirring device 10 is operating,
It is suitable to operate only for about 5 to 20 minutes after the operation is stopped, and to stop other than that. Also, the heater 8 is de-energized.

The garbage 19 is 2 to 4 in the garbage processor 1.
As time passes, the food waste 19 has been decomposed to about 80%, and the decomposition speed of the slightly left food waste 19 has decreased significantly, so the air consumption has decreased and the stirring device Even if the operation frequency of 10 is decreased and the operation of the ventilation device 7 and the heater 8 is decreased, aerobic fermentation continues slowly,
The garbage 19 will not be corrupted.

Further, after the operating frequency of the stirring device 10 is reduced, and further after 3 to 5 days have passed, all the operations of the food waste processing device 1 are stopped. At this time, the raw garbage 19 in the raw garbage processing apparatus 1 has been almost completely decomposed and almost no raw garbage 19 remains, so even if all the operations of the raw garbage processing apparatus 1 are stopped. Nothing will rot and no inconvenience will occur. And the indicator lights 21, 22, 23
Turn off all. The energization indicator lamp 21 may be turned on.

Table 1 shows an example of the operation of the above-mentioned food waste processing apparatus 1 of the present invention. However, the elapsed time in Table 1 is the elapsed time from the time when the start switch is operated after closing the lid or the stirring device is first operated after a predetermined time has elapsed.

[0051]

[Table 1]

[0052]

According to the present invention, the filling material 18 in the food waste processing apparatus 1 is intermittently stirred by the stirring apparatus 10, and the air in the processing tank 3 is ventilated by the ventilation apparatus 7 while being filled by the heater 8. The material 18 is heated, and the garbage 19 is put thereinto to fill the filling material 1
When mixed in 8, the garbage 19 is decomposed by the action of aerobic microorganisms.

Then, after the garbage is finally put in, a time of 2 to 4 days elapses without the new garbage 19 being put in, and most of the garbage 19 is decomposed. 10 reduces the operation frequency, and further reduces the operation of the ventilation device 7 and the heater 8 in the invention of claim 2,
It is possible to save the power consumption of the food waste processing device 1 and save energy.

Therefore, according to the present invention, after the garbage 19 is put into the filling material 18 and the undecomposed garbage 19 remains in the filling material 18, the raw garbage processing apparatus 1 frequently operates. It operates to efficiently decompose the garbage 19 to make it harmless, and after a long time has passed without introducing new garbage 19, most of the garbage 19 has been decomposed and the operation is reduced. Therefore, waste of energy can be saved, and the garbage 19 can be efficiently decomposed while saving energy.

According to the third aspect of the present invention, after the food waste 19 is almost completely decomposed after 3 to 5 days have passed, all the operations of the food waste processing apparatus 1 are stopped. Further energy saving can be achieved.

According to the invention of claim 4, raw garbage 19
After closing the lid 5 and closing the lid 5, the operation can be started immediately by operating the start switch 20, and even when the operation of the start switch 20 is forgotten, the operation is performed after a predetermined time elapses. Stirrer 1
There is no possibility that the garbage 19 will be spoiled by being left unattended for a long time.

Further, even if the opened lid 5 is closed, it does not operate immediately. Therefore, even if an infant, a pet or the like falls into the processing tank 3 and the lid is closed, the agitator 10 immediately operates and causes harm. It has no effect. In addition, if several tens of minutes have passed after the fall, it is possible to notice and rescue the anomaly during that time.

[Brief description of drawings]

FIG. 1 is a perspective view of a food waste processing device of the present invention.

FIG. 2 is a central longitudinal sectional view of the food waste processing device of the present invention.

[Explanation of symbols]

 1 Garbage Disposal Device 3 Processing Tank 4 Garbage Discharge Port 6 Detecting Device 7 Ventilator 8 Heater 10 Stirrer 18 Filling Material 19 Garbage 20 Start Switch

Claims (4)

[Claims] 1. A treatment tank (3), a stirring device (10) for stirring the contents of the treatment tank (3), a heating device (8) for heating the contents of the treatment tank (3), and A ventilation device (7) for ventilating the air in the treatment tank (3) is provided, and garbage is put into the filler (18) housed in the treatment tank (3) to intermittently fill the filler (18). While stirring and heating and ventilating appropriately,
In the processing device for decomposing the food waste (19) in the processing tank (3) by the action of microorganisms, a means (6) for detecting the opening / closing of the food waste input port (4) is provided to open the food waste input port (4). 2 to 4 days after the last closing, the stirring device (10)
It is characterized in that the operating frequency of
Garbage processing equipment 2. The food waste processing device according to claim 1, wherein the operation frequency of the agitating device (10) is decreased and the operation of the heating device (8) and the ventilation device (7) are also decreased. Garbage disposal device characterized by 3. After the frequency of operation of the stirring device (10) is reduced, further 3 to 3 without opening the garbage input port (4).
The garbage according to claim 1 or 2, characterized in that after a lapse of 5 days, the operations of the stirring device (10), the heating device (8) and the ventilation device (7) are all stopped. Processor 4. A stirrer (10) is provided by providing a start switch (20) for starting the operation of the stirrer (10), and operating the start switch (20) after closing the garbage input port (4). Start the switch (20) after operating the food waste and closing the garbage input port (4).
4. The garbage processing device according to claim 1, wherein the stirring device (10) is operated even after a predetermined time has passed without being operated.