JPH09122622A - Garbage treatment apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the consumption of electric power and to control the generation of an offensive odor and the temperature in a reaction vessel easily by controlling power supply to a heating means corresponding to an outside air temperature. SOLUTION: The surface temperature of a heater 60 is controlled to keep constant by a thermostat 61, and when the temperature detected by an outside air temperature detecting sensor 31 is, for example, 20 deg.C or less, power is supplied to the heater 60 by a control circuit 32. When an outside air temperature is, for example, above 20 deg.C, the temperature in a reaction vessel 50 is similar to that of the outside air temperature so that it is unnecessary to heat the reaction vessel by the heater 60, and since the fermentation of a material to be treated is promoted even when power supply is stopped, not only unnecessary power consumption can be avoided but also the generation of an offensive odor is controlled and the temperature in the reaction vessel can be controlled easily.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a food waste treatment device for composting food waste such as kitchen waste generated in a home kitchen by aerobic fermentation and decomposition, and in particular, controls the temperature of a heater based on the outside air temperature. The present invention relates to a garbage disposal device.

[0002]

2. Description of the Related Art Composting of raw garbage is carried out by fermenting and decomposing the organic matter in the raw garbage with the help of microorganisms.
Achieved. In this fermentation, a method of aerobic fermentation decomposition in which oxygen is given to the processed product to ferment is generally adopted, because the fermentation heat obtained during fermentation is large and the generation of a bad odor associated with fermentation is small. ing. In order to promote this aerobic fermentation, it is necessary to prepare an optimal environment for the activity of microorganisms. It is necessary to maintain the water state, supply oxygen necessary for fermentation, and keep the temperature at an appropriate level.

For this reason, in the conventional general food waste treating apparatus, in addition to the reaction tank, a stirring means for equalizing the state of the entire processed material put into the reaction tank and oxygen are supplied. It is provided with a ventilating means for adjusting the water state and a heating means for keeping the temperature inside the reaction tank at a certain value.

[0004]

As described above, in the above-mentioned general garbage disposal, in order to promote aerobic fermentation by the activity of microorganisms, water, oxygen, temperature, etc. are indispensable. However, excess water will hinder the supply of oxygen, so excess water can be effectively removed by adjusting the amount of air or raising the temperature in the reaction tank. It is like this.

Incidentally, the temperature inside the reaction tank is set to be maintained at 20 ° C. or higher. This is because the temperature is suitable for the activity of microorganisms, and it is generally said that microorganisms best propagate at 20 to 40 ° C. Therefore, the surface temperature of the heating means is set to 50 ° C. by a thermostat, for example.
The temperature inside the reaction tank is kept at 20 ° C. or higher by setting

However, since the temperature inside the reaction tank is controlled by uniquely setting the surface temperature of the heating means, the temperature in the outside of the reaction tank is high and the temperature inside the reaction tank exceeds 20.degree. Also, power is supplied to the heating means. In this case, there is a problem that not only the electric power is wasted, but also the temperature in the reaction tank is further raised by the heat from the heating means, and the malodorous component is released.

In order to solve such a problem, a temperature sensor is provided inside the reaction tank to detect the temperature in the reaction tank,
When the detected temperature is 20 ° C. or higher, it is considered that wasteful power consumption can be suppressed by cutting off the power supply to the heating means.

However, when the temperature inside the reaction tank is detected by the temperature sensor, since there is a temperature distribution inside the reaction tank, it is necessary to detect the temperature at a portion near the central portion inside the reaction tank. However, since the stirring blade rotates in the central part of the reaction tank, the temperature sensor becomes an obstacle,
It is difficult to dispose the temperature sensor inside the reaction tank.

The present invention has been made in consideration of such a situation, and by controlling the power supply to the heating means in accordance with the outside air temperature, the power consumption is reduced and the generation of a foul odor is suppressed. An object of the present invention is to provide an apparatus for treating food waste that can easily control the temperature inside the reaction tank.

[0010]

In order to achieve the above-mentioned object, an apparatus for treating garbage according to the present invention comprises a reaction tank into which a treated matter containing garbage and a medium material is charged, and the treated matter. Stirring means for stirring, heating means provided below the stirring means for maintaining the temperature inside the reaction tank at a predetermined value or more, and surface temperature control means for maintaining the surface temperature of the heating means at a constant value. An outside air temperature detecting means for detecting an outside air temperature; and an electric power supply control means for supplying electric power to the heating means when the temperature detected by the outside air temperature detecting means is below a predetermined value. And

[0011]

In the garbage disposal of the present invention, the surface temperature control means controls the surface temperature of the heating means to keep a constant value, and when the temperature detected by the outside air temperature detecting means is below a predetermined value. The electric power supply control means supplies electric power to the heating means.

As a result, the outside air temperature is high, for example, 2
When the temperature exceeds 0 ° C., the temperature inside the reaction tank is about the same as the outside air temperature, and it is not necessary to raise the temperature inside the reaction tank by the heat from the heating means, and even if the power supply to the heating means is interrupted. Since the fermentation of the processed product is promoted, wasteful power consumption is avoided.

Further, when the outside air temperature is high and the temperature inside the reaction tank exceeds, for example, 20 ° C., the power supply to the heating means is interrupted, so that the temperature inside the reaction tank is further increased by the heating means. The temperature inside the reactor is kept at an appropriate temperature.

Further, when the temperature detected by the outside air temperature detecting means is below a predetermined value, for example, below 20 ° C.,
Since the heating means is supplied with electric power, the temperature inside the reaction tank is a predetermined value regardless of the outside air temperature.
For example, it can be maintained at 20 ° C. or higher.

[0015]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 to 4 show an embodiment of the garbage processing apparatus of the present invention. As shown in these drawings, a discharge port lid 12 for taking out composted substances such as raw dust to the outside is provided on a front surface portion 11 of a device body 10 of the raw dust processing device so as to be openable and closable. Further, since the discharge port lid 12 is made of a transparent material, it is possible to confirm the state of the processed material in the reaction tank 50, which will be described later, inside the apparatus main body 10 through the discharge port lid 12. Has become.

On the upper surface portion 13 of the apparatus main body 10, a charging port lid 14 that is opened when charging raw garbage or the like into a reaction tank 50 described later and a stirring blade 42 as a stirring means described later are rotated, or the like. A power switch 1 for supplying electric power to a heater 60 as a heating means described later.
5 are provided. Here, in the present embodiment, an aluminum foil silicon heater is used as the heater 60.

Further, a lid opening / closing interlocking switch 15a, which will be described later, is provided on the upper surface portion 13 of the apparatus main body 10 for detecting opening / closing of the insertion port lid 14.
When the opening / closing of the inlet lid 14 is detected by 5a,
The stirring blade 42 is driven for a predetermined time (in this embodiment, about 10 minutes).

An inlet port 17 for taking in outside air is provided above the left side surface portion 16 of the apparatus main body 10, and a drainage port for draining excess water in a reaction tank 50 described later is provided below the inlet port 17. A mouth 18 is provided.

A side cover 20 having an exhaust port 21 on the lower side is attached to the right side surface portion 19 of the apparatus main body 10 by a screw or the like not shown. An exhaust fan 22 is provided above the right side surface portion 19 of the apparatus body 10. The height position of the exhaust fan 22 is the left side surface portion 1 described above.
The air is at substantially the same position as the air inlet 17 of FIG. 6, and the outside air taken in from the air inlet 17 by the rotation of the exhaust fan 22 moves on the upper side of the reaction tank 50, which will be described later, and propagates inside the side cover 20 to reach the air outlet. 21 is discharged to the outside.

In the vicinity of the exhaust fan 22, when the power switch 15 described above is turned on, the rotational drive of the stirring blade 42, which will be described later, is controlled, and the heater 60, which is also described later, is controlled.
An electric equipment box 30 in which an outside air temperature detecting sensor 31 as an outside air temperature detecting means for detecting the outside air temperature is provided while controlling the power supply to the outside. The details of the electrical equipment box 30 will be described later.

When the power switch 15 is turned on, electric power is supplied to the heater 60, which will be described later, and the outside air temperature detecting sensor 31 detects that the outside air temperature exceeds 20 ° C., for example. When this happens, the power supply to the heater 60 is cut off.
This will be described later in detail.

The right side surface portion 1 below the electrical equipment box 30
One end of a rotary shaft 40, to which a sprocket wheel 41 is attached, is rotatably supported at substantially the center of the shaft 9. By the way, the other end side of the rotary shaft 40 has a left side surface portion 16
It is rotatably attached to the center of. Rotating shaft 40
, A plurality of stirring blades 42 mounted so as to protrude in the radial direction are arranged in a row in the axial direction.

A sprocket wheel 44 attached to the drive shaft of the motor 43 is disposed below the right side surface portion 19, and the driving force of the motor 43 is transmitted to the sprocket wheel 41 via the chain 45. Has become.

Inside the apparatus body 10, a reaction tank 50 partitioned by a reaction tank bottom plate 51 is provided. Here, the reaction tank 50 partitioned by the reaction tank bottom plate 51
Is formed by the front surface portion 11, the rear surface portion 11a, the left side surface portion 16 and the right side surface portion 19, all of which are made of stainless steel and have excellent corrosion resistance and rigidity.

Further, on the lower surface side of the reaction tank bottom plate 51, there are provided a heater 60 and a heat insulating and heat insulating material 70 whose surface temperature is set to 50 ° C. by a thermostat 61 as a surface temperature control means which will be described later. When the temperature detected by the outside air temperature detection sensor 31 in the box 30 is 20 ° C. or less, power is supplied to the heater 60.

FIG. 7 shows details of the electrical equipment box 30. As shown in the figure, the control circuit 32 as the power supply control means receives the ON / OFF signal from the power switch 15 and the lid opening / closing interlock switch 15a and the detection signal from the outside air temperature detection sensor 31. ing.

When the control circuit 32 receives the ON signal from the power switch 15, the power from the power circuit 33 is supplied to the fan driver 35 to drive the exhaust fan 22, and the heater 60 is also supplied with power. To perform. On the side of the heater 60, when the surface temperature exceeds 50 ° C., the thermostat 61 operates to cut off the power supply from the power supply circuit 33, and when the surface temperature falls below 50 ° C., the power supply is continued.

Further, when the control circuit 32 takes in an on / off signal from the lid opening / closing interlocking switch 15a which interlocks with the opening / closing of the inlet lid 14, the power from the power supply circuit 33 is supplied to the motor driver 34 for about 10 minutes. The stirring blade 42 is rotated (for example, about 5 rpm) by driving the motor 43 to stir the processed material charged into the reaction tank 50.

Further, the control circuit 32 controls the power supply circuit 33 to the fan driver 35 when the opening lid 14 is opened.
Power supply to the fan driver 35 is stopped by stopping the driving of the exhaust fan 22, the closing lid 14 is closed, the motor 43 is driven for about 10 minutes and stopped, and then the power supply to the fan driver 35 is restarted. The exhaust fan 22 is driven.

Further, the control circuit 32 takes in the detection signal of the outside air temperature from the outside air temperature detection sensor 31 and supplies the electric power to the heater 60 when the detected temperature is 20 ° C. or less, but the detected temperature is 20. When the temperature exceeds ℃, the power supply to the heater 60 is stopped.

By the way, FIG. 8 shows the temperature distribution of the garbage processing apparatus in the present embodiment, and shows the case where the outside air temperature is 20 ° C. As can be seen from the figure, when the temperature detected by the outside air temperature detection sensor 31 exceeds 20 ° C., the electric power supply to the heating heater 60 is interrupted and heating by the heating heater 60 is not performed. The temperatures of the heat insulating material 60 and the heat insulating material 70 are maintained at 20 ° C. according to the outside air temperature.

As shown in the figure, the outside air temperature is 0 ° C.
In this case, when power is supplied to the heater 60 and the surface temperature of the heater 60 reaches 50 ° C., the reaction tank 50
It can be seen that the internal temperature is 20 ° C.

Incidentally, when the temperature control by the outside air temperature detection sensor 31 is not performed, as shown in FIG. 9, for example,
When the outside air temperature is 0 ° C., power is supplied to the heater 60, and the surface temperature of the heater 60 reaches 50 ° C., so that the temperature inside the reaction tank 50 is set to 20 ° C. When the temperature is 20 ° C., the temperature inside the reaction tank 50 is 3
It can be seen that the temperature has risen to 0 ° C. This is because heating is performed by the heater 60 even when the outside air temperature is high, resulting in wasted power consumption.

Next, the operation of the garbage processing device having the above-mentioned configuration will be described. First, it is necessary to install this device at a predetermined place such as under a roof. However, this device is carried to the predetermined place, a power plug (not shown) is extended from the device and inserted into a household power outlet. This completes the installation work and eliminates the need for other complicated duct installation work.

Next, the charging port lid 14 is opened, and medium materials such as sawdust and rice husks are charged into the reaction tank 50 until the rotary shaft 40 is hidden and the upward stirring blade 42 is hidden about half. Whether or not the volume of the medium material in the reaction tank 50 is proper can be easily confirmed by looking into the reaction tank 50 through the transparent discharge port lid 12. In addition, the microorganisms responsible for aerobic fermentation decomposition are naturally attached to media and garbage, but from the beginning, in order to carry out aerobic fermentation decomposition actively, When using, it is desirable to positively add an appropriate amount of commercially available microorganisms.

In this state, if the inlet lid 14 is closed and the power switch 15 is turned on, the exhaust fan 22 operates and the heater 60 is also supplied with electric power to complete the preparation. However, power is supplied to the heater 60 when the outside air temperature is 20 ° C. or lower.

Then, when the garbage is produced due to cooking in the kitchen or the like, the garbage is immediately carried to the garbage processing device and the opening lid 14 is opened. Then, the operation of the exhaust fan 22 is stopped, so that it is sufficient to put raw garbage into the reaction tank 50 through the opening below the inlet lid 14 and close the inlet lid 14. This is the only operation for inputting garbage.

When the charging port lid 14 is closed, the raw garbage processing device automatically continues the following stirring process and aeration process. That is, when the inlet lid 14 is closed, the motor 43 is energized for about 10 minutes,
The stirring blade 42 is rotationally driven at, for example, 5 rpm. Thus, the input garbage is well mixed with the medium material and the microorganisms.

Further, when the operation of the motor 43 is stopped, the operation of the exhaust fan 22 is restarted. Then, the outside air is introduced into the reaction tank 50 having a slightly negative pressure through the inlet port 17, so that the air (oxygen) necessary for the aerobic fermentation decomposition is constantly supplied. Further, the air in the reaction tank 50 is sent from the exhaust fan 22 to the space between the right side surface portion 19 and the side cover 20, and finally discharged from the exhaust port 21 toward the outside below the apparatus. In this way, ventilation is forcibly performed, and along with this, excess water from the garbage is also added to the reaction tank 50.
Removed from within.

At this time, the outside air temperature is detected by the outside air temperature detection sensor 31, and when the detected temperature is 20 ° C. or less, the electric power is supplied to the heater 60 and the reaction tank 5
By increasing the temperature inside 0, fermentation of the processed product is promoted. On the other hand, when the detected temperature exceeds 20 ° C., the power supply to the heater 60 is interrupted, but the reaction tank 5
Since the temperature inside 0 is raised to the outside temperature,
Fermentation of the processed product is promoted without requiring heating by the heater 60.

Further, since the heating by the heater 60 is stopped when the outside air temperature is high, the problem of the generation of the malodorous component as in the conventional case described above can be solved.

Even when the next raw garbage comes out, the above-mentioned raw garbage feeding operation may be repeated again, and the stirring process and the aeration process described above are also performed. When the number of days elapses while repeating such operations and treatments, raw garbage is decomposed by aerobic fermentation in the order of old to a few to a few tenths.
It becomes compost of a certain degree and accumulates at the bottom of the reaction tank 50.

As described above, in this embodiment, the surface temperature of the heater 60 is controlled by the thermostat 61 to be maintained at a constant value, and the temperature detected by the outside air temperature detection sensor 31 is, for example, 20 ° C. or less. At this time, the control circuit 32 supplies electric power to the heater 60.

As a result, the outside air temperature is high, for example, 2
When the temperature exceeds 0 ° C., the temperature inside the reaction tank 50 is about the same as the outside air temperature, and it is not necessary to raise the temperature inside the reaction tank 50 by the heat from the heating heater 60, and the electric power is supplied to the heating heater 60. Even if it is interrupted, the fermentation of the processed material is promoted, so that unnecessary power consumption is avoided.

When the outside air temperature is high and the temperature inside the reaction tank 50 exceeds 20 ° C., for example, the heater 6 is used.
Since the power supply to 0 is interrupted, the temperature inside the reaction tank 50 is not further raised by the heater 60, and the generation of malodorous components is suppressed.

Further, when the temperature detected by the outside air temperature detecting sensor 31 is below a predetermined value, for example, below 20 ° C., the heater 60 is made to supply electric power, so that regardless of the outside air temperature, The temperature inside the reaction tank 50 can be maintained at a predetermined value, for example, 20 ° C. or higher.

In the present embodiment, when the temperature detected by the outside air temperature detection sensor 31 is 20 ° C. or lower, power is supplied to the heater 60 and the detected temperature is 2 ° C.
The case where the power supply to the heater 60 is interrupted when the temperature exceeds 0 ° C. has been described, but the present invention is not limited to this example, and the temperature detected by the outside air temperature detection sensor 31 may be set according to the volume of the reaction tank 50. The setting may be changed accordingly.

[0048]

As described above, according to the food waste processing apparatus of the present invention, the surface temperature control means controls the surface temperature of the heating means to maintain a constant value, and the outside air temperature detecting means. When the temperature detected by is less than a predetermined value, the power supply control means supplies power to the heating means.

As a result, the outside air temperature is high, for example, 2
When the temperature exceeds 0 ° C., the temperature inside the reaction tank is about the same as the outside air temperature, and it is not necessary to raise the temperature inside the reaction tank by the heat from the heating means, and even if the power supply to the heating means is interrupted. Since the fermentation of the processed product is promoted, wasteful power consumption is avoided.

When the outside air temperature is high and the temperature inside the reaction tank exceeds 20 ° C., for example, the electric power supply to the heating means is interrupted, so that the heating means further raises the temperature inside the reaction tank. It does not happen, and the generation of malodorous components is suppressed.

Further, when the temperature detected by the outside air temperature detecting means is below a predetermined value, for example, below 20 ° C.,
Since the heating means is supplied with electric power, the temperature inside the reaction tank is a predetermined value regardless of the outside air temperature.
For example, it can be maintained at 20 ° C. or higher.

Therefore, since the power supply to the heating means is controlled according to the outside air temperature, the power consumption can be reduced, the generation of a bad odor can be suppressed, and the temperature inside the reaction tank can be easily controlled. it can.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of a garbage processing device of the present invention.

FIG. 2 is a plan view showing the garbage processing device of FIG.

FIG. 3 is a left side view showing the garbage processing device of FIG. 1.

4 is a right side view showing the garbage processing device of FIG. 1. FIG.

5 is a diagram showing an internal configuration of the garbage processing device of FIG.

FIG. 6 is a diagram showing an internal configuration of the garbage processing device of FIG. 1.

FIG. 7 is a diagram showing details of an electrical equipment box of the garbage processing device of FIG.

FIG. 8 is a diagram showing characteristics of the garbage processing device of FIG. 1.

FIG. 9 is a diagram showing characteristics of the garbage processing device when the outside air temperature detection sensor is not provided.

[Explanation of symbols]

 10 Device Main Body 11 Front Part 12 Discharge Port Lid 13 Top Part 14 Input Port Lid 15 Power Switch 15a Lid Opening / Closing Switch 16 Left Side Part 17 Inlet Port 19 Right Side Part 20 Side Cover 21 Exhaust Port 22 Exhaust Fan 31 Outside Air Temperature Sensor 32 Control circuit 33 Power supply circuit 42 Stirring blade 50 Reaction tank 60 Heating heater 61 Thermostat

Claims (1)

[Claims] 1. A reaction tank into which a processed material containing raw garbage and a medium material is charged, a stirring means for stirring the charged processed material, and a temperature inside the reaction tank which is provided below the stirring means. Is maintained at a predetermined value or more, surface temperature control means for maintaining the surface temperature of the heating means at a constant value, outside temperature detecting means for detecting the outside air temperature, and outside temperature detecting means. A food waste treatment device comprising: a power supply control means for supplying power to the heating means when the temperature is equal to or lower than a predetermined value.