JP2000042516A - Garbage treating machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To maintain a decomposition vessel which house garbage and decomposes the garbage with microorganism carriers carrying microorganisms at a prescribed temp. by heating this decomposition vessel by a thermal storage material disposed on the outside thereof. SOLUTION: Garbage is decomposed by the microorganisms carried by the microorganism carriers 23 in the decomposition vessel 22. The inside of the decomposition vessel 22 is required to be maintained at a prescribed temp. range at which the insects generated in the microorganism carriers 23 and their eggs are killed and, on the other hand, the carried microorganisms are not killed. The thermal storage material 25 is arranged in the space between a case 21 and the decomposition vessel 22 for this purpose. A pipe 27 for forming the flow passage of the hot water supplied from a hot water supply device 26 installed outside the case 21 is arranged in the thermal storage material 25. The paraffinic thermal storage material having a m.p. of about 70 deg.C is suitable as the thermal storage material 25. This thermal storage material 25 is heated by the hot water passing inside the pipe 27 and the microorganism carrier 23 in the decomposition vessel 22 are controlled to a prescribed temp. by the heat stored in this thermal storage material 25.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

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

[0002]

2. Description of the Related Art In a garbage processing machine of a microorganism treatment type, a microorganism carrier is accommodated in order to activate microorganisms and kill insects and eggs generated on the microorganism carrier carrying the microorganisms. Need a decomposition tank. As for the heating of the decomposition tank, a method is known in which hot water is supplied to the periphery of the decomposition tank and heated, as described in Japanese Patent Application Laid-Open No. 7-136630.

[0003]

However, according to the above-mentioned prior art, when the temperature of the hot water supplied around the decomposition tank changes, the temperature of the decomposition tank also changes accordingly.
Therefore, there has been a problem that the performance of the degrading microorganisms is reduced due to a decrease in the temperature of the hot water, and the degrading microorganisms are killed due to an increase in the temperature of the hot water.

In order to maintain the decomposition tank at a predetermined temperature,
It is necessary to always supply hot water around the decomposition tank. Therefore, it is necessary to operate a water heater for heating the hot water and to continuously operate a pump for supplying the hot water around the decomposition tank, so that the durability of the water heater and the pump has been a problem. The present invention has been made in view of the above problems, and has as its object to provide a garbage disposer capable of maintaining a decomposition tank at a predetermined temperature.

Another object of the present invention is to provide a garbage disposer in which the operation time of the heating means of the decomposition tank is reduced.

[0006]

In order to achieve the above object, according to the first aspect of the present invention, there is provided a decomposition section (1) for accommodating garbage and decomposing the garbage by a microorganism carrier (23) carrying microorganisms. 22), a heat storage material (25) provided outside the decomposition part (22), and heating means (26, 27, 27a) for heating the heat storage material (25).
Are characterized by being heated by the heat storage material (25).

According to this, the heating means (26, 27, 2
The heat added by 7a) is not transmitted directly to the decomposition tank (22), but is carried out via the heat storage material (25). The heat storage material (25) functions as a thermal buffer between the heating means (26, 27, 27a) and the decomposition tank (22). When the amount of heating from the heating means (26, 27, 27a) increases, the amount of heating is used for heat storage of the heat storage material (25). On the other hand, when the amount of heating from the heating means (26, 27, 27a) decreases, the decomposition tank (22) is heated by the heat stored in the heat storage material (25). Therefore, even if the amount of heating from the heating means (26, 27, 27a) fluctuates, the decomposing section (22) operates the heating means (26, 27, 27a).
Hardly affected by fluctuations in the amount of heating from
Can be easily maintained at a predetermined temperature. as a result,
The performance of degrading microorganisms may decrease due to the decrease in temperature of hot water,
The problem that the degrading microorganisms are killed by the rise in the temperature of the hot water can also be avoided.

[0008] Heating means (26, 27,
As 27a), warm water can be used as described in claim 2. In addition, as described in claim 3, the heat storage material (25) can be arranged between the decomposition section (22) and the case (21) in which the decomposition section (22) is housed. By disposing the heat storage material (25) between the decomposition section (22) and the case (21) in which the decomposition section (22) is housed, the periphery of the decomposition section (22) is covered with the heat storage material (25). Can be. Therefore, the disassembly unit (2
The heating of 2) can be performed efficiently.

Further, as described in claim 4,
The case (21 ') filled with the heat storage material (25) may be arranged in contact with the outside of the disassembly section (22). Thereby, the structure of the garbage treatment machine can be simplified, and the manufacture becomes easy. In the invention according to claim 5, the heat storage material (25)
Is characterized in that its melting point is higher than the desired temperature of the decomposition section (22) by a predetermined temperature. The heat storage material (25) is maintained at a temperature near the melting point due to its latent heat effect. Although the temperature of the heat storage material (15) is higher than the desired temperature of the decomposition tank (22) by a predetermined temperature, there is a heat loss at the time of heat exchange from the heat storage material (25) to the decomposition tank (22). ) Is set to the desired temperature.

In the invention according to claim 6, the decomposition tank (2
2) Or, a temperature sensor (28) for detecting the temperature of the heat storage material (25), and heating of the heat storage material (25) by the heating means (26, 27, 27a) based on the temperature detected by the temperature sensor (28). And a control device (29) for controlling the control. According to this, since the heating of the heat storage material (25) by the heating means (26, 27, 27a) is controlled based on the temperature detected by the temperature sensor (28), the decomposition section (22) is maintained at an appropriate temperature. it can. Further, by utilizing the latent heat effect of the heat storage material (25), it is not necessary to always operate the heating means (26, 27, 27a). Therefore, the heating means (26, 27, 2
7a), the operating time of the heating means (2) can be reduced.
6, 27, 27a) can be extended. For example, when hot water is used as the heating means (26, 27, 27a), the operation time of the water heater (26) and the operation time of the pump (27a) for supplying hot water from the water heater (26) to the heat storage material (25) are used. Can be reduced, and the durable life of the water heater (26) and the pump (27a) can be extended.

The above-mentioned reference numerals in parentheses indicate the correspondence with specific means described in the embodiment described later.

[0012]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a first embodiment of the present invention. (First Embodiment) FIG. 1 is a schematic overall configuration diagram of a garbage processing apparatus 1 as a first embodiment of the present invention. The garbage processing apparatus 1 includes a garbage input section 10, a decomposition section 20 for decomposing garbage, and a deodorization section 30 for deodorizing and exhausting odors generated in the decomposition section 20 during decomposition of garbage.

The charging section 10 is defined by a case 11. A charging tank 12 is provided in the case 11. On the upper surface of the charging tank 12, a charging port 13, which is an opening into which garbage is charged, is formed. In addition, a lid 1 that allows the opening 13 to be opened and closed is provided in the opening on the upper surface of the charging tank 12.
4 are provided. When the lid 14 is closed, the space between the inlet 13 and the lid 14 is sealed by a sealing member (not shown). Therefore, when the lid 14 is closed, the air in the charging tank 12 does not leak from between the charging port 13 and the lid 14.

A suction port 15 for sucking air from outside is provided on the upper side surface of the charging tank 12. Air is sucked from the suction port 15 by the operation of the ventilation pump 32 described later. A transfer path 18 for transferring garbage to a decomposition tank 32 described below is connected to a lower side surface of the charging tank 12. The garbage in the charging tank 12 is finely pulverized by a pulverizing blade 17 rotated and driven by a motor 16. The crushed garbage is blown off by the crushing blade 17 by centrifugal force, and is transferred to the decomposition tank 22 through the transfer path 18.

In the disassembling section 20, the input to the input section 10 is performed.
The garbage carried through the transfer path 18 is decomposed.
The disassembling tank 22 disposed in the case 21 has a transfer path 18.
The garbage is carried in through and stored. Microbial carrier 23 carrying aerobic bacteria that can withstand high temperatures is contained in decomposition tank 22.
The microorganism carrier 23 and the garbage are agitated by a rotationally driven agitating blade 24 in conjunction with driving of an agitating motor (not shown). The stirring motor is operated for several minutes at predetermined time intervals when the garbage processing apparatus 1 is turned on.

A heat storage material 25 is arranged in a space between the case 21 and the decomposition tank 22. And the heat storage material 25
Inside the water heater 2 installed outside the case 21
A pipe 27 forming a flow path of the hot water supplied from 6 is arranged. The heat storage material 25 is suitably a paraffin-based material having a melting point of about 70 ° C., and the pipe 27 is suitably made of a material having good heat conductivity such as copper. The heat storage material 25 is heated by the warm water passing through the pipe 27, and the heat stored in the heat storage material 25 controls the temperature of the microorganism carrier 23 in the decomposition tank 22 to a predetermined temperature. In addition, the pipe 27 that performs heat exchange between the hot water and the heat storage material 25 is provided to increase the heat exchange efficiency.
It is desirable to increase the contact area with the heat storage material 25.
In order to increase the contact area between the heat storage material 25 and the pipe 27, for example, the pipe 27 may be arranged in a wave shape in the heat storage material 25.

A temperature sensor 28 is provided in the heat storage material 25, and detects the temperature of the heat storage material 25. The temperature detected by the temperature sensor 28 is transmitted from the water heater 26 to the pipe 27.
Is transmitted to a control device 29 that controls a pump 27a that turns on / off the supply of warm water. Then, the control device 29 controls the supply of hot water from the water heater 26 to the pipe 27 to maintain the heat storage material 25 at a predetermined temperature and maintain the inside of the decomposition tank 22 at a predetermined temperature. For example, in the present embodiment, the heat storage material 2
5 is 70 ° C., the temperature of the decomposition tank 22 is 50 ° C.
Can be adjusted. Therefore, the pump 27a is turned on / off so that the temperature of the heat storage material 25 becomes about 70 ° C.
Control and regulate hot water supply. The temperature of the hot water supplied from the water heater 26 is constant.
It is kept in.

The deodorizing section 30 comprises a deodorizing device 31 for deodorizing the odor generated in the decomposition section 20, a ventilation pump 32 and the like. The ventilation pump 32 is installed outside the disassembly unit 20. The ventilation pump 32 communicates with the inside of the decomposition tank 32 via an exhaust path 33, a deodorizing device 31, and an odor introduction path. Accordingly, the odor generated in the decomposition tank 22 by the operation of the ventilation pump 32 is converted into the odor introduction path 34.
And is supplied to the deodorizing device 31.

The deodorizing device 31 has a honeycomb-shaped catalyst carrier made of ceramic such as cordierite carrying a three-way catalyst containing a noble metal such as platinum or rhodium as a main component. The catalyst carrier has a cylindrical shape, and a rod-shaped heater for heating the catalyst carrier is built in a hole formed at the center thereof. When the catalyst carrier is heated by the heater, the temperature of the catalyst carrier becomes 250 ° C. or higher. Then, the odor introduced into the deodorizing device 31 is deodorized by the adsorption of the odor component by the catalyst activated at a high temperature.
The deodorized air is exhausted from the exhaust port 35.

Next, the operation of this embodiment will be described.
The garbage introduced into the charging tank 12 from the charging port 13 is
The powder is finely pulverized by a pulverizing blade 17 driven to rotate by a table 16. Then, it is blown off by the centrifugal force of the crushing blade 17 and transferred to the decomposition tank 22 through the transfer path 18. The garbage sent to the decomposition tank 22 is stirred with the microorganism carrier 23 by the stirring blade 24. Then, in the decomposition tank 22, the garbage is decomposed by the microorganisms carried on the microorganism carrier 23.

The decomposition tank 22 has a predetermined temperature range in which insects and eggs generated on the microorganism carrier 23 are killed while microorganisms carried on the microorganism carrier 23 are not killed.
It must be maintained in the range 5 ° C to 56 ° C. Decomposition tank 2
The temperature in the inside of the decomposition tank 22 is controlled by the heat storage material 25 arranged between the decomposition tank 22 and the case 21.
It changes according to the temperature of the heat storage material 25. Therefore, decomposition tank 2
In order to increase the temperature in the heat storage material 25, the temperature of the heat storage material 25 may be increased. To lower the temperature in the decomposition tank 22, the temperature of the heat storage material 25 may be reduced. Therefore, decomposition tank 2
2 is maintained at a desired temperature (for example, 50 ° C.) from the water heater 26 to the pipe 27 based on the temperature detected by the temperature sensor 28 installed in the heat storage material 25.
The control device 29 controls the pump 27a that turns on / off the supply of hot water to the heat storage material 25 to set the temperature of the heat storage material 25 to a predetermined temperature (for example, 70 ° C.).

FIG. 2 shows a temperature sensor 28 according to this embodiment.
6 is a graph showing the relationship between the temperature of the heat storage material 25 and the time detected in FIG. 5 and the relationship between the ON / OFF of the pump 27a and the time. When hot water of about 80 ° C. is supplied from the water heater 26 and the heat storage material 25 is heated, the temperature of the heat storage material 25 rises. When the temperature of the heat storage material 25 reaches 75 ° C. (first predetermined temperature),
The pump 27a is switched from ON to OFF to stop supplying hot water. While the supply of hot water is stopped, heat storage material 2
The decomposition tank 22 is heated by the heat stored in 5 to maintain the inside of the decomposition tank 22 at a desired temperature (about 50 ° C.). When the temperature of the heat storage material 25 decreases to 55 ° C. (second predetermined temperature),
The pump 27a is switched from OFF to ON, and the supply of hot water is restarted. As described above, when the temperature of the heat storage material 25 becomes equal to or higher than the first predetermined temperature, the pump 27a for supplying hot water is switched from ON to OFF to stop the supply of the hot water, and the temperature of the heat storage material 25 is lower than the first predetermined temperature. When the temperature falls below the predetermined temperature, the pump 27a is switched from OFF to ON, and the supply of hot water is restarted. In this manner, the temperature of the heat storage material 25 is maintained at a temperature near the melting point (70 ° C.), and the temperature in the decomposition tank 22 is maintained at a desired temperature (about 50 ° C.).

The ventilation pump 32 draws fresh air from outside the garbage disposal apparatus 1 into the decomposition tank 22 via the air inlet 15 and the transfer path 18 and is generated when the garbage is decomposed. The odor is discharged from the decomposition tank 22 to the outside via the deodorizing device 31. Decomposition tank 22 by ventilation pump 32
When passing through the honeycomb-shaped catalyst carrier heated by the heater, the odor sucked into the deodorization device 31 is deodorized by the adsorption of the odor component by the high-temperature activated catalyst supported on the catalyst carrier. You. The deodorized air is
It is discharged from the exhaust port 35.

The ventilation pump 32 is always operating as long as the garbage processing apparatus 1 is turned on. Deodorizing device 3
1 is also constantly operating, and the catalyst carrier is also constantly heated to a predetermined value or more. Therefore, the odor in the decomposition tank 22 is always sucked into the deodorizing device 31 by the ventilation pump 32, so that the odor does not leak from the suction port 15. As described above, in the present embodiment, the temperature in the decomposition tank 22 is controlled using the heat storage material 25. The heat storage material 25 is maintained at a predetermined temperature range near the melting point by the control device 29. The temperature of the heat storage material 25 maintained at a temperature near the melting point does not change abruptly even when the supply of hot water is cut off due to its latent heat effect. That is, even if the supply of the hot water is stopped, the temperature gradually decreases while maintaining the temperature near the melting point of the heat storage material 25 for a predetermined time. Therefore, the water heater 26 and the pump 27a do not need to be constantly operated,
The operation time of the water heater 26 and the operation time of the pump 27a can be reduced, and their durable life can be extended.

In this embodiment, the temperature of the hot water is kept constant. However, the temperature of the hot water supplied from the water heater 26 actually fluctuates within a predetermined range. However, heat transfer from the hot water to the decomposition tank 22 is performed via the heat storage material 25 having a latent heat effect, and the heat storage material 2
5 functions as a buffer between the decomposition tank 22 and the hot water.
Therefore, even if the temperature of the hot water changes, the temperature change does not directly affect the temperature of the decomposition tank 22, and the temperature of the decomposition tank 22 can be appropriately controlled.

Further, in the present embodiment, the operation of the pump 27a for turning on / off the supply of hot water is controlled based on the temperature sensor 28 provided in the heat storage material 25 for the temperature in the decomposition tank 22. Therefore, the inside of the decomposition tank 22 can be maintained at an appropriate temperature, and insects and eggs generated on the microorganism carrier 23 are killed. On the other hand, the microorganisms carried on the microorganism carrier 23 are heated at a temperature at which they do not kill. Activities are maintained. Further, when the temperature of the decomposition tank 22 is higher than the appropriate temperature, the power consumption of the water heater 26 and the pump 27a can be suppressed by turning off the pump 27a. (Second Embodiment) In the first embodiment, the decomposition tank 22
A heat storage material 25 and a pipe 27 as a hot water flow path were disposed in a gap between the heat storage material 25 and the case 21 accommodating the decomposition tank 22.
However, as shown in FIG. 3, a case 21 ′ formed of a good heat conductive member filled with a heat storage material 25
2 may be arranged in contact with the outer wall. In this case, a hot water flow path is also formed in the case 21 '.

FIGS. 4 to 7 are sectional views taken along the line AA in FIG. 3 illustrating the internal structure of the case 21 '. In the case 21'a shown in FIG. 4, a large number of granular heat storage material packs 25a are filled in the case 21'a, and a gap between the heat storage material packs 25a is a flow path 27 'of hot water. Thermal storage material pack 25
a is formed by filling a heat storage material 25 into a pipe of a good conduction member such as copper and closing both ends. This heat storage material pack 25a is made of a heat-resistant resin formed into a tubular shape and stored in a heat storage material 2.
5, and can be formed by closing both ends by heat welding.

In the case 21'b shown in FIG. 5, the inside of the case 21'b is divided into two layers by a plate having an uneven shape. One side is filled with the heat storage material 25, and the other side is a hot water flow path 27 '. In this case,
The side filled with the heat storage material 25 is brought into contact with the outer wall of the decomposition tank 22. In the case 21'c shown in FIG. 6, the inside of the case 21'c is divided into three layers by a plate having an uneven shape. The central layer is filled with the heat storage material 25, and the layers on both sides are hot water flow paths 27 '.

In the case 21'd shown in FIG. 7, the inside of the case 21'd is divided into three layers by a plate having an uneven shape. The central layer is a hot water flow path 27 ', and the layers at both ends are filled with a heat storage material 25. 4 to 7
Even if the case 21 ′ having the heat storage material 25 filled therein and the hot water flow path 27 ′ for heating the heat storage material 25 is arranged in contact with the outer wall of the decomposition tank 22, Garbage treatment machine 1 having the same effects as the first embodiment
Can be obtained. That is, by utilizing the latent heat effect of the heat storage material 25, the temperature in the decomposition tank 22 can be maintained at a predetermined temperature.

Case 21 'as shown in FIGS. 4 to 7
In the second embodiment using the heat exchanger, it is not necessary to dispose the pipe 27 as the hot water flow path in the heat storage material 25 as in the first embodiment, so that the structure is simplified. Therefore, the manufacturing cost of the garbage processing machine 1 can be reduced. Further, since heat exchange is performed between the hot water through the granular heat storage material pack 25a or the plate having the uneven shape, the heat exchange area can be increased, and the heat exchange performance is improved.

In the examples shown in FIGS. 5 to 7, the inside of the case 21 'is divided by a plate having an uneven shape in order to increase the heat exchange area, but it may be divided by a flat plate. (Third Embodiment) FIG. 8 is an overall configuration diagram of a garbage processing machine showing still another embodiment of the present invention. In the third embodiment, the input unit 10 is installed below the kitchen sink 41. The wastewater normally used in the kitchen sink 41 is drained through a trap 43 and a drain pipe 42. Ventilation pump 3
The air discharged by 2 passes through the exhaust port 35 and is sent to the exhaust pipe 42. At this time, the kitchen tank 41 is discharged from the exhaust pipe 42 by the water 44 accumulated in the trap 43.
There is no air flow. Therefore, in the third embodiment, the deodorizing device 31 can be omitted. (Fourth Embodiment) FIG. 9 is an overall configuration diagram of a garbage disposer showing still another embodiment of the present invention. In the present embodiment, the garbage introduced from the inlet 13 is directly introduced into the decomposition tank 22 without being crushed. Also in such a garbage processing machine, the inside of the decomposition tank 22 can be heated using the heat storage material 25 similarly to the first embodiment. (Other Embodiments) In the first and second embodiments, the heat storage material 25 is heated using hot water. But,
The means for heating the heat storage material 25 is not limited to hot water. That is, the heat storage material 25 may be heated by flowing warm air through the pipe 27 or the flow path 27 ′, or an electric heater may be disposed in the heat storage material 25 for heating.

In the above embodiment, the decomposition tank 2
In order to maintain 2 at a predetermined temperature, the temperature of the heat storage material 25 was detected, and the supply of warm water to the heat storage material 25 was controlled. However, by installing a temperature sensor in the decomposition tank 22,
The supply of warm water to the heat storage material 25 may be controlled by detecting the temperature in the inside.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram of a garbage processing machine of the present invention.

FIG. 2 is a graph showing the relationship between heat storage material and time and the relationship between operation of a pump and time in the garbage disposer of the present invention.

FIG. 3 is a schematic view showing an arrangement of a case filled with a heat storage material according to a second embodiment of the present invention in a decomposition tank.

FIG. 4 is an AA showing an example of the internal structure of the case in FIG. 3;
It is sectional drawing.

FIG. 5 is an AA showing another example of the internal structure of the case of FIG. 3;
It is sectional drawing.

FIG. 6 is an AA showing another example of the internal structure of the case of FIG. 3;
It is sectional drawing.

FIG. 7 is an AA diagram showing another example of the internal structure of the case of FIG. 3;
It is sectional drawing.

FIG. 8 is an overall configuration diagram of a garbage processing machine according to a third embodiment of the present invention.

FIG. 9 is an overall configuration diagram of a garbage processing machine according to a fourth embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 ... Input part, 20 ... Decomposition part, 21 ... Case, 22 ... Decomposition tank, 23 ... Microorganism carrier, 24 ... Stirring blade, 25 ... Heat storage material, 26 ... Water heater, 27 ... Pipe, 27a ... Pump, 2
8: temperature sensor, 29: control device, 30: deodorizing section.

Claims (6)

[Claims] A decomposition section (2) for containing garbage and decomposing the garbage by a microorganism carrier (23) carrying microorganisms.
2) and a heat storage material (25) provided outside the decomposition section (22).
Heating means for heating the heat storage material (25);
27a), wherein the decomposition section (22) is heated by the heat storage material (25). 2. The heat storage material (25) is connected to the heating means (2).
The garbage disposal machine according to claim 1, wherein the garbage disposal machine is heated by hot water supplied from 6, 27, 27a). 3. A case (21) accommodating the disassembly section (22), wherein the heat storage material (25) is disposed between the disassembly section (22) and the case (21). The garbage processing machine according to claim 1 or 2, characterized in that: 4. The heat storage material (25) is a case (21 ′).
The garbage disposal machine according to claim 1 or 2, wherein the case (21 ') is arranged so as to be in contact with the outside of the disassembling section (22). 5. The decomposition tank (22) is provided with the heat storage material (2).
The heat storage material is heated to a desired temperature by 5), and a melting point of the heat storage material is higher than a desired temperature of the decomposition section by a predetermined temperature. The garbage processing machine described in 1. 6. A temperature sensor (28) for detecting a temperature of the decomposing section (22) or the heat storage material (25), and the heating means (26, based on a temperature detected by the temperature sensor (28)). The garbage disposal machine according to any one of claims 1 to 5, further comprising a control device (29) for controlling heating of the heat storage material (25) by the heat storage materials (27, 27a).