JP3473377B2 - Control structure of garbage processing equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control structure of a garbage disposal device, and more specifically, the garbage generated in the kitchen is treated by the garbage disposal device, and the normal kitchen wastewater of the kitchen is directly discharged to the sewer or the combined septic tank. The present invention relates to a control structure of a food waste processing device configured to do so.

[0002]

2. Description of the Related Art In recent years, it has been practiced to grind kitchen waste generated in a kitchen with a disposer, and to process the comminuted kitchen garbage in a kitchen waste processing apparatus installed outside the kitchen. However, the wastewater generated in the kitchen is usually kitchen wastewater and disposer wastewater, but if the normal kitchen wastewater is also supplied to the above-mentioned food waste treatment device, there is a problem that the load on the food waste treatment device becomes large and it cannot be treated. For example, the amount of kitchen drainage water is about 30 liters / person / day, and the amount of disposer drainage water is about 5 liters / person / day. The load on the waste treatment equipment is extremely high. Therefore, it is usually necessary to discharge the kitchen wastewater directly to the sewer or the combined septic tank so that only the disposer wastewater is supplied to the garbage processing device.

As a conventional device of this type, for example, a kitchen is provided with a sink for exclusive use of drainage and a sink for normal kitchen drainage. Normal kitchen wastewater is discharged directly from the kitchen wastewater sink to the sewer or combined septic tank. Garbage is made to flow from the sink for exclusive use of the disposer together with tap water, crushed by the disposer, and supplied via a pipe to a garbage disposal device installed outdoors. The food waste treatment device has a sedimentation tank, a flow rate adjustment tank, an aeration tank, a solid matter decomposition tank, and the like. The garbage that has flowed in from the disposer through the pipe is supplied to the settling tank, where it is separated into solids and water in the settling tank, the solids are sent to the solids decomposition tank, and the water is sent to the flow rate adjustment tank. To be A solid waste decomposition tank is filled with a food waste treatment material called a biochip, and the solid matter is decomposed by microorganisms living in the food waste treatment material.
The solid matter supplied from the settling tank is decomposed and treated in the solid matter decomposition tank. The solid matter treated in the solid matter decomposition tank can be used as compost. The separated water separated in the solid decomposition tank is returned to the settling tank. The water separated in the settling tank is supplied to the aeration tank through the flow rate adjusting tank. The flow rate adjusting tank is for adjusting the flow rate so that the load of the aeration tank is constant and supplying water to the aeration tank. In the aeration tank, the water is treated in aeration and the purified water is discharged to the sewer or the combined septic tank. The sludge settled in the aeration tank was returned to the settling tank.

[0004]

However, in the case of such a conventional example, the amount of water supplied from the flow rate adjusting tank to the aeration tank fluctuates in order to operate according to the assumed inflow pattern. As a result, the water treatment performance becomes poor, and the device capacity must be increased.

In particular, as shown in FIG. 5, when the amount of inflow into the flow rate adjusting tank 8 is small, the transfer limit water level A of the air lift pump for supplying water from the flow rate adjusting tank 8 to the aeration tank becomes lower than the transfer limit water level A. As an air lift pump, it was in an idle state in which only air was sent. Such a blank driving state was a cause of clogging of the water transfer conduit 16.

The present invention has been made in view of the above-mentioned points, and an object thereof is to provide a control structure for a food waste processing apparatus which can always keep the amount of water flowing into a flow rate adjusting tank constant. To provide.

[0007]

The control structure of the food waste processing apparatus according to claim 1 of the present invention is to temporarily store the garbage that has been crushed by the disposer 6 carried with water into the waste water. At the same time, the settling tank 7 for separating and settling, the flow rate adjusting tank 8 to which the sewage that is the supernatant of the settling tank 7 is supplied to store the sewage, and the sewage supplied from the flow rate adjusting tank 8 to treat the sewage The aeration tank 9 and the solids separation tank 10 that decomposes the sludge in the aeration tank 9 and the solid matter that has settled in the settling tank 7 are provided in the garbage treatment device 1 at the operating time of the disposer 6. A control unit 27 that adjusts the amount of sewage supplied from the flow rate adjusting tank 8 to the aeration tank 9 in accordance therewith.
Is provided.

According to the second aspect of the present invention, the control structure of the food waste treating apparatus is designed so that the solids are conveyed from the settling tank 7 to the solids separating tank 10 at intervals of at least one day. It is characterized by

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a schematic sectional view showing a control structure of a food waste processing apparatus according to one embodiment of the present invention. Figure 2
[Fig. 3] is an explanatory diagram for explaining the above system. Figure 3
It is a perspective view explaining a drainage switching device same as the above in both (a) and (b). FIG. 4 is a graph showing the relationship between the generation amount of carbon dioxide gas and the elapsed time in the control structure of the food waste processing apparatus according to the embodiment of the present invention.

As shown in FIG. 1 to FIG. 3, the control structure of the food waste processing apparatus of the present invention is to store the food waste crushed by the disposer 6 together with the water and temporarily store the waste water. The settling tank 7 for settling and separating, the flow rate adjusting tank 8 to which the waste water as the supernatant liquid of the settling tank 7 is supplied to store the waste water, and the waste water to be supplied from the flow rate adjusting tank 8 are treated. Air tank 9 and this aeration tank 9
Of the sludge and a solids separation tank 10 for decomposing the solids settled in the settling tank 7, the flow control tank 8 to the aeration tank depending on the operating time of the disposer 6. The controller 27 is provided to adjust the amount of sewage supplied to the container 9.

A kitchen is usually provided with a sink for discharging kitchen wastewater and kitchen waste, and a disposer 6 for crushing the kitchen waste is arranged in a pipeline for discharging the kitchen wastewater. A food waste processing device 1 is arranged outside the kitchen, and a disposer 6 and the inside of the food waste processing device 1 are connected by a drainage inflow conduit 2.

As shown in FIG. 1 and FIG. 2, the raw garbage processing apparatus 1 temporarily stores the raw garbage comminuted by the disposer 6 together with water to temporarily store it, and also precipitates and separates it. A tank 7; a flow rate adjusting tank 8 for supplying the waste water, which is the supernatant liquid of the settling tank 7, to store the waste water; and an aeration tank 9 for supplying the waste water from the flow rate adjusting tank 8 to treat the waste water. A solid separation tank 10 for decomposing the sludge in the aeration tank 9 and the solid matter settled in the sedimentation tank 7 is provided, and the sedimentation tank 7, the flow rate adjusting tank 8 and the solid matter decomposition tank 10 are integrally arranged in parallel. I am doing it. Settling tank 7 is disposer 6
The raw garbage that has been pulverized in 1. and supplied together with water is precipitated and separated into solid matter and water.

In the case of this example, as shown in FIGS. 1 and 2, the settling tank 7 is partitioned by a partition plate 11 into an inflow side chamber 7a and an outflow side chamber 7b, and an air diffuser 12 is provided above the inflow side chamber 7a. Is provided, and the upper portion of the outflow side chamber 7b is communicated with the flow rate adjusting tank 8 through the communication port 3. The solid matter that has settled on the bottom of the settling tank 7 is transferred by the solid matter pump 13 to the solid matter conveying pipeline 1.
4 is sent to the solid decomposition tank 10. The flow rate adjusting tank 8 is for adjusting the flow rate of the water supplied from the settling tank 7 and supplying the water to the aeration tank 9, and the aeration tank 9 is supplied to the aeration tank 9 by the air lift pump 15.
It is possible to supply a fixed amount to each.

As shown in FIGS. 1 and 2, the aeration tank 9 purifies water by aeration treatment, and the aeration tank 9 is divided by a partition plate 17 into an inflow side chamber 9a and an outflow side chamber 9b. It is partitioned. A contact member 18 is provided in the inflow side chamber 9a of the aeration tank 9a, and an air diffuser 19 is provided below the contact member 18. The sludge settled on the bottom of the aeration tank 9 is returned to the settling tank 7 by the pump 20 via the sludge return pipe 21. A treated water drainage conduit 22 is led out from the upper part of the outflow side chamber 9b of the aeration tank 9, so that the treated water purified in the aeration tank 9 in the treated water drainage conduit 22 can be discharged to the sewer or the combined purification tank. It has become.

As shown in FIGS. 1 and 2, the solid decomposition tank 10 has a stirring blade 23 rotatably mounted therein, and a motor 25 can rotate the stirring blade 23. In addition, the solid waste decomposing tank 10 is loaded with a food waste treatment material 24 called a biochip, and the solid matter conveyed from the solid matter conveyance pipeline 14 is treated as the food waste treatment material 2
Stir with the stirring blade 23 together with 4, and the raw garbage processing material 24
It is supposed to be digested by the microorganisms that live in. In this way, by treating the solid matter with the food waste treating material, it can be composted and used. The solid matter decomposition tank 10 can separate the water contained in the solid matter by filtration and the like.
It can be returned to the settling tank 7 at 6.

As shown in FIGS. 1 and 2, the end portion of the drainage inflow conduit 2 is located above the inflow side chamber 7a of the settling tank 7, and the flow rate from the upper side of the inflow side chamber 7a of the settling tank 7 is set. The normal drainage discharge conduit 5 is piped so as to reach the treated water discharge conduit 22 through the upper part of the adjusting tank 8 and the upper part of the aeration tank 9. A drainage switching device 4 is arranged between the drainage inflow conduit 2 and the normal drainage discharge conduit 5 above the inflow side chamber 7a of the settling tank 7.

In the case of this example, the drainage switching device 4 has an end portion of the drainage inflow conduit 2 and a normal drainage discharge conduit 5 as shown in FIG.
The end portions of the movable rods 4a are separated from each other, and the semi-cylindrical movable rod 4a
Is formed so that it can be rotated up and down, and
The motor a can be rotationally driven by the motor 28.
Then, in a state in which the movable basin 4a is rotated so as to be horizontal [state of FIG. 3 (a)], the drainage inflow conduit 2 and the normal drainage discharge conduit 5 are communicated with each other by the movable basin 4a. , In the state in which the movable rod 4a is rotated so as to be vertical [Fig.
(State of (b)] The communication between the drainage inflow conduit 2 and the normal drainage outflow conduit 5 is cut off, and the settling tank 7 starts from the end of the drainage inflow conduit 2.
Drainage flows into the.

The movable basin 4a is driven by a motor 28, which is operated in conjunction with the operation of the disposer 6. That is, when the operation switch of the disposer 6 is turned on, the movable rod 4 is moved by the motor 28.
By driving so that a becomes vertical, the communication between the drainage inflow conduit 2 and the normal drainage discharge conduit 5 is interrupted, and the disposer operation is performed together with this. When the operation switch of the disposer 6 is turned off, the movable basin 4a is driven by the motor 28 so that the movable basin 4a becomes horizontal, so that the drainage inflow conduit 2 and the normal drainage discharge conduit 5 communicate with each other.

However, when the disposer 6 is not operated, the drainage switching device 4 is switched so that the movable basin 4a becomes horizontal and the drainage inflow conduit 2 and the normal drainage discharge conduit 5 communicate with each other. In this state, food waste is not discharged, but only normal kitchen drainage is performed. When the normal kitchen drainage is discharged from the kitchen, this drainage is discharged through the disposer 6, the drainage inflow conduit 2, and the movable basin 4a. Flow to the normal drainage discharge pipeline 5, and are discharged from the normal drainage discharge pipeline 5 to the sewer or the combined septic tank via the treated water drainage pipeline 22. At this time, since the kitchen wastewater normally flows to the treated water drainage conduit 22, the treated water drainage conduit 22 is washed by this drainage, and there is no possibility that the treated water drainage conduit 22 is clogged.

When the garbage is drained, the operation switch of the disposer 6 is turned on. When the operation switch is turned on, the motor 28 drives the movable basin 4a to be vertical and the drainage inflow pipe. Line 2 and normal drainage drain line 5
Is cut off, the disposer 6 is driven, and the food waste discharged together with the tap water is crushed by the disposer 6, and the food waste crushed by the disposer 6 is sent to the drainage inflow conduit 2 and discharged. Garbage is put into the settling tank 7 together with tap water from the end of the inflow conduit 2. When the operation of the disposer 6 is turned off, the motor 28 drives the movable basin 4a to be horizontal, and the drainage inflow conduit 2 and the normal drainage discharge conduit 5 communicate with each other, and the normal kitchen drainage is discharged as described above. It is ready to be discharged. When the crushed food waste is put into the settling tank 7 from the end of the drainage inflow conduit 2, the settling tank 7 separates and separates solid matter and water, and the solid matter is decomposed in the solid matter decomposition tank 10. The separated water in the settling tank 7 is sent to the aeration tank 9 via the flow rate adjusting tank 8 and is aerated in the aeration tank 9 to be treated as a sewer or a combined purification tank via the treated water drainage pipe 22. Released to.

As described above, in the present invention, as shown in FIG. 1 to FIG. 3, the kitchen waste processing apparatus 1 for processing kitchen waste and the kitchen cause the waste water generated in the kitchen to flow into the kitchen waste processing apparatus 1 side. The wastewater inflow conduit 2 for communicating with each other is provided, and the wastewater switching device 4 is provided at the end of the wastewater inflow conduit 2 near the entrance in the food waste treatment device 1 so that The normal wastewater discharge pipeline 5 for draining the normal kitchen wastewater of the kitchen to the outside of the kitchen waste processing apparatus 1 without processing was disposed in the kitchen waste processing apparatus 1, and the disposer 6 was operated to be crushed from the kitchen by the disposer 6. When the kitchen waste is drained together with water, the drainage switching device 4 is switched so that the kitchen waste and the water are put into the kitchen waste treatment device 1, and when the kitchen wastewater is drained from the kitchen, the kitchen wastewater is drained. The normal drainage discharge line Since the wastewater switching device 4 is switched so as to discharge it to the outside of the raw garbage processing device 1, when the disposer 6 is operated to drain the raw garbage, the wastewater switching device 4 produces the raw garbage. It is switched so as to be put into the waste treatment device 1 and the raw garbage crushed by the disposer 6 is put into the raw waste treatment device 1 together with tap water for treatment, and when the disposer 6 is not operated, the drainage inflow conduit 2 The drainage switching device 4 is switched so as to communicate with the normal drainage discharge pipeline 5, and the normal kitchen drainage is discharged to the sewer or the combined septic tank via the drainage inflow pipeline 2 and the normal drainage discharge pipeline 5. As a result, it is possible to switch between normal kitchen drainage and kitchen waste that are discharged from the same sink in the kitchen according to the drainage, and the drainage switching device 4 can be switched depending on whether the disposer 6 is operating or not, and the switching can be performed automatically. It is designed so that it can be handled accurately and easily.

Further, as shown in FIGS. 3 (a) and 3 (b), the drainage switching device 4 is arranged between the end of the drainage inflow conduit 2 and the end of the normal drainage discharge conduit 5. It is composed of a movable movable basin 4a, and when normal kitchen drainage flows from the drainage inflow conduit 2, the movable basin 4a is made horizontal and the drainage inflow conduit 2 and the normal drainage drainage conduit 5 communicate with each other. Movable basin 4 when food waste enters with water from pipe 2
Since it is configured so that the food waste is thrown into the food waste processing device 1 from the drainage inflow pipe 2 by switching a, the movable stile 4a is rotatably mounted and movable. The drainage switching device 4 can be configured with a structure in which the 4a is driven to rotate, and the structure can be simplified.

As shown in FIG. 1, the present invention further includes a control unit 27 for adjusting the amount of sewage supplied from the flow rate adjusting tank 8 to the aeration tank 9 according to the operating time of the disposer 6. It is what

Generally, there is a correlation between the operating time of the disposer 6 (this is T seconds) and the amount of water flowing into the garbage processing device 1 (this is Q liters), and the equation Q = k. -It is expressed as T. However, k is a coefficient and its unit is liter / second. With this mathematical expression, the control unit 27 works, and the water level of the flow rate adjusting tank 8 can be estimated from the operating time of the disposer 6, and thus the amount of water flowing into the flow rate adjusting tank 8 can be always kept constant. As a result, it is possible to prevent the air lift pump 15 from being idled below the minimum water level and to prevent water quality deterioration due to overflow. That is, since the air lift pump 15 can be operated at a rated load without requiring a water level sensor or the like, the water quality is surely improved.

If the solids are conveyed from the settling tank 7 to the solids separating tank 10 at intervals of at least one day, a certain time interval can be obtained. In addition, the carrier temperature of the solids separation tank 10 is maintained, and the efficiency of decomposition of solids by microorganisms is improved.

Specifically, when the solid matter is conveyed from the settling tank 7 to the solid matter separating tank 10 every 8 hours, that is, p
The line 1 in FIG. 4 shows the case where the solid matter is conveyed from the settling tank 7 to the solid matter separating tank 10 at each point. Has fallen to.

On the other hand, as shown by the line L in FIG. 4, when the solid matter is conveyed from the precipitation tank 7 to the solid matter separation tank 10 every 24 hours, that is, at the point P, the solid matter separation tank 10 is separated from the solid matter separation tank 10 respectively. In the case where the solid material is conveyed to, the amount of carbon dioxide gas generated is much higher than in the case shown by the line 1 in FIG.

The higher the amount of carbon dioxide gas generated, the more the decomposition of the solid matter by the microorganisms has progressed. As a result, a certain time interval can be obtained, and the carrier of the solid matter separation tank 10 can be obtained. This shows that the temperature is maintained and the decomposition efficiency of solid matter by microorganisms is improved.

[0030]

According to the first aspect of the present invention, a kitchen waste disposal device for treating kitchen waste and a kitchen are provided with a waste water inflow conduit for causing waste water generated in the kitchen to flow into the kitchen waste disposal device side. A wastewater switching device is provided at the end of the wastewater inflow conduit near the entrance in the kitchen waste treatment device so that the normal kitchen wastewater from the kitchen is not processed by the wastewater switching device. When a normal wastewater discharge pipe that drains to the outside is installed in the garbage processing device and the garbage disintegrated from the kitchen is drained together with water by operating the disposer, the garbage and water are discharged. When switching the wastewater switching device so that it is put into the waste treatment device, and when the kitchen wastewater is drained from the kitchen, the drainage switching device is used to discharge the normal kitchen drainage to the outside of the food waste treatment device through the normal wastewater discharge pipeline. Switch Therefore, when the disposer is operated to drain the food waste, the drainage switching device is switched to throw the food waste into the food waste treatment device, and the food waste crushed by the disposer is replaced with tap water. The wastewater switching device is switched so that the wastewater inflow pipe and the normal wastewater discharge pipe line communicate with each other when they are thrown into the garbage treatment device together and processed, and when the disposer is not operated, the normal kitchen wastewater is drained water inflow pipe line. And normal wastewater discharge pipes to the sewers or combined septic tanks, which discharges normal kitchen wastewater and kitchen waste from the same sink in the kitchen, but can be switched according to the wastewater. The drainage switching device can be switched depending on whether the disposer is operating or not, and switching can be done automatically, and handling can be performed accurately and easily. Than it is. And, since the control unit for adjusting the supply amount of the sewage from the flow rate adjusting tank to the aeration tank is provided according to the operating time of the disposer, the control unit works with the introduced mathematical formula, The water level of the flow rate adjustment tank can be estimated from the operating time of the disposer, so that the amount of water flowing into the flow rate adjustment tank can always be kept constant, and as a result,
Drying the air lift pump below the minimum water level, and
It is possible to prevent deterioration of water quality due to overflow. That is, since the air lift pump can be operated at the rated load without the need for a water level sensor or the like, the water quality is surely improved.

Further, in the invention of claim 2 of the present invention, in claim 1, since a certain time interval is obtained, the carrier temperature of the solids separation tank is maintained and the solids are decomposed by microorganisms. It will be more efficient.

[Brief description of drawings]

FIG. 1 is a schematic cross-sectional view showing a control structure of a food waste processing device according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram for explaining the above system.

FIG. 3A and FIG. 3B are perspective views for explaining the drainage switching device of the above.

FIG. 4 is a graph showing the relationship between the generation amount of carbon dioxide gas and the elapsed time in the control structure of the food waste processing device according to the embodiment of the present invention.

FIG. 5 is a schematic view showing a state of a flow rate adjusting tank in the control structure of the food waste processing apparatus according to the conventional example.

[Explanation of symbols]

1 garbage processing equipment 6 Disposers 7 settling tank 8 flow rate adjustment tank 9 aeration tank 10 Solids separation tank 27 Control unit

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hideaki Yamada 1048, Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Works, Ltd. (56) Reference JP-A-5-337493 (JP, A) (58) Fields investigated (58) Int.Cl. ⁷ , DB name) B09B 3/00 C02F 11/02 C02F 3/12

Claims (2)

(57) [Claims] 1. A sewage carried by a disposer together with water is made to flow into sewage for temporary storage, and a settling tank for settling and separation, and sewage that is the supernatant liquid of this settling tank are supplied. Flow rate adjusting tank for storing the same waste water, an aeration tank for supplying the waste water from the flow rate adjusting tank and treating the waste water, and a solid substance for decomposing the sludge of the aeration tank and the solid matter settled in the settling tank. A raw garbage treatment device provided with a separation tank, characterized in that a control section is provided for adjusting the amount of sewage supplied from the flow rate adjusting tank to the aeration tank according to the operating time of the disposer. The control structure of the processor. 2. The control structure for a food waste treating apparatus according to claim 1, wherein the solid matter is conveyed from the settling tank to the solid matter separating tank at intervals of at least one day. .