JP3209903U - 厨 芥 Slurry transfer device - Google Patents

Abstract

[PROBLEMS] To reliably transfer soot slurry with a simple structure to prevent soot sedimentation, to ensure operation reliability, to be efficient and reliable in transferring soot slurry, to operate stably over a long period of time, and to be durable , Long life, excellent maintainability, low vibration and noise, excellent quietness, and the appropriate amount of soot slurry can be efficiently transferred by adjusting the flow rate according to the transfer distance. A soot slurry transfer device excellent in energy saving is provided. A tank 2 for storing dredged slurry discharged from a disposer 30, a submersible pump 3 set in the tank 2, and a submersible pump when a water level of the dredged slurry in the tank 2 is within a preset range. A water level interlocking switch 4 to be driven, a transfer pipe 5 connecting the discharge port of the submersible pump 3 and the waste water treatment device, and a branch pipe branched from the transfer pipe 5 and discharging a part of the soot slurry into the tank 2. 6 and a flow rate adjusting unit that is disposed in the transfer pipe 5 or the branch pipe 6 and adjusts the flow rate of the soot slurry that flows through the transfer pipe 5 and the branch pipe 6. [Selection] Figure 1

Description

  The present invention relates to a soot slurry transfer device for transporting soot slurry discharged from a disposer used in lunch centers, hospitals, and various facilities.

2. Description of the Related Art Conventionally, in food service centers, hospitals, and the like, a disposer is used that adds water to a cocoon and pulverizes it to produce a slurry containing cocoon (hereinafter referred to as cocoon slurry).
The soot slurry discharged from a general household disposer is directly discharged into public sewers, etc., but in facilities such as a food service center where a large amount of soot slurry is generated, the soot slurry discharged from the disposer is As disclosed in 1), it is transferred by a pump installed on the downstream side of the disposer and sent to a wastewater treatment device such as a solid-liquid separator (dehydrator) or a septic tank through a drainage pipe for processing.
The soot slurry is generally called a Roots pump, and a positive displacement pump that feeds a constant volume of soot slurry by rotating two saddle type rotors in the opposite direction in the casing is suitably used. ing.

JP 2007-1332078 A

(1) The conventional positive displacement pump can be directly connected to the disposer and can transfer the soot slurry even if air is sucked in. Therefore, it is necessary to operate continuously with the disposer and perform complicated control. It was excellent in handleability and operability.
(2) However, vibrations and noises due to contact with the rotor are large, lacking silence, and because the rotor wears due to contact, there are problems of short life, lack of durability and maintainability.
(3) Therefore, it is conceivable to use a submersible pump instead of the roots pump. However, if the centrifugal submersible pump sucks air, an air lock may be generated and the soot slurry may not be transferred.
(4) The submersible pump is installed in the tank where the soot slurry is stored, but if soot contained in the soot slurry settles in the tank, only the water is transferred and the soot is left in the tank. There is a risk that.
(5) Furthermore, since the flow rate of the submersible pump cannot be adjusted, if the transfer distance to the wastewater treatment device such as the dehydrator on the downstream side is short, a large amount of dredged slurry may be transferred and the amount of wastewater treatment device received may be exceeded. There is also.
(6) From the above, the submersible pump can be stably operated in a state where the water level of the soot slurry in the tank where the submersible pump is installed is maintained within a certain range, and the inside of the tank is reliably stirred. Soot slurry transfer that can prevent soot precipitation and efficiently transfer soot slurry, adjust the flow rate according to the transfer distance to the wastewater treatment device, and can transfer the appropriate amount of soot slurry Realization of the device was strongly desired.

  The present invention responds to the above-mentioned conventional demands, and can reliably transfer soot slurry without causing malfunctions with a simple configuration to prevent soot sedimentation, reliability of operation, soot slurry transfer In addition to excellent efficiency and reliability, it operates stably over a long period of time, has excellent durability, long life, and maintainability. Thus, by adjusting the flow rate, an appropriate amount of soot slurry can be efficiently transferred, and an object is to provide a soot slurry transfer device that is excellent in versatility and energy saving.

Means for solving the problems, and actions and effects obtained thereby

In order to solve the above conventional problems, the soot slurry transfer device of the present invention has the following configuration.
The soot slurry transfer device according to claim 1 of the present invention is a soot slurry transfer device for transferring the soot slurry discharged from the disposer to a downstream wastewater treatment device, wherein the soot slurry discharged from the disposer A submersible pump that is submerged in the tank, a water level interlocking switch that drives the submersible pump when the water level of the soot slurry stored in the tank is within a preset range, A transfer pipe connecting between a discharge port of the pump and the waste water treatment apparatus, a branch pipe for discharging a part of the soot slurry branched from the transfer pipe and flowing through the transfer pipe into the tank, and the transfer pipe Or a flow rate adjusting unit that is arranged in the branch pipe and adjusts the flow rate of the soot slurry flowing through the transfer pipe and the branch pipe.
With this configuration, the following operations and effects can be obtained.
(1) Tank for storing dredged slurry discharged from the disposer, submersible pump set in the tank, and water level for driving the submersible pump when the level of dredged slurry stored in the tank is within a preset range By having the interlock switch, air is sucked into the submersible pump and air lock does not occur, so that the soot slurry can be reliably transferred, and the reliability of the soot slurry transfer and the operational stability are excellent.
(2) By having a water level interlocking switch that drives the submersible pump when the level of the soot slurry stored in the tank is within a preset range, the submersible pump is intermittently operated during the operation of the disposer to ensure reliable and efficient In addition, since the soot slurry can be transferred, the submersible pump is not driven unnecessarily, and energy saving is excellent.
(3) By using a submersible pump for the transfer of soot slurry, vibration and noise are small compared to conventional roots pumps, and it is excellent in quietness, has a long life, and is excellent in durability and maintainability.
(4) Since it has a transfer pipe that connects between the discharge port of the submersible pump and the waste water treatment device, and a branch pipe that discharges part of the soot slurry that flows from the transfer pipe and flows through the transfer pipe into the tank. While transferring the soot slurry in the pipe, the soot slurry in the tank can be agitated by a part of the soot slurry discharged from the branch pipe into the tank to generate forced convection, and soot is precipitated in the tank. This can be prevented and the soot slurry can be reliably and efficiently transferred to the waste water treatment apparatus.
(5) Since a part of the soot slurry transferred by the submersible pump can be discharged from the branch pipe and the soot slurry in the tank can be agitated, it does not require a separate stirring means such as a mixer, and is excellent in energy saving. .
(6) Since it has a flow rate adjusting unit that is arranged in the transfer pipe or the branch pipe and adjusts the flow rate of the soot slurry flowing through the transfer pipe and the branch pipe, the received amount of the soot slurry and the waste water treatment apparatus of the waste water treatment apparatus as the transfer destination Depending on the transfer distance, the flow rate of the soot slurry flowing through the transfer pipe can be adjusted to reliably and efficiently transfer the soot slurry, and the soot slurry flowing through the branch pipe according to the tank capacity etc. By adjusting the flow rate, the amount of soot slurry discharged from the branch pipe can be adjusted to stir the soot slurry in the tank reliably and efficiently, and the efficiency and stability of soot slurry transfer are excellent. .
(7) Since the flow rate of the soot slurry can be easily adjusted by the flow rate adjustment unit, it is not necessary to reduce the capacity of the submersible pump by adjusting the rotation speed with an inverter, etc., and failure is unlikely to occur. Easy to control and excellent in handling and operability.

Here, the tank and submersible pump of the soot slurry transfer device are built in the lower part of the lower soot sink or the like. The waste water treatment device installed downstream of the soot slurry transfer device may be one that separates the soot slurry into a solid content and a liquid content with a solid-liquid separator (dehydrator) and then purifies the liquid content with a septic tank or the like. However, the soot slurry may be purified directly in a septic tank or the like without using a solid-liquid separator (dehydrator).
The water level interlock switch only needs to detect the level of the soot slurry in the tank and switch between driving and stopping the submersible pump according to the detected water level.水中 If the submersible pump stops when the water level of the slurry falls below the preset lower limit water level, air will not be sucked into the submersible pump, preventing the occurrence of an air lock and stabilizing the submersible pump. Can be operated automatically. In particular, when the water level of the soot slurry reaches the preset upper limit water level, the submersible pump starts to be driven, and when the water level reaches the lower limit level, the soot slurry is efficiently transferred. The submersible pump can be driven efficiently.
As the water level interlock switch, a float switch, a pressure switch, an electrode type switch, or the like that switches ON / OFF when the float moves up and down in accordance with the water level is preferably used.
The number and arrangement of the branch pipes can be selected as appropriate. However, by uniformly arranging the plurality of branch pipes around the submersible pump, the soot slurry in the tank can be uniformly and efficiently stirred. Precipitation can be prevented. In addition, the discharge direction of the soot slurry discharged from the branch pipe can be selected as appropriate, but it can be discharged toward the bottom of the tank or discharged radially from the center of the tank toward the peripheral wall. The stirring effect can be enhanced.
The flow rate adjusting unit may be any unit that can adjust the flow rate of the soot slurry flowing through the transfer pipe and the branch pipe, but a flow rate adjusting valve such as a ball valve or a gate valve is preferably used. When an electromagnetic valve is used, it is easy to control the opening and closing of the valve and the flow rate adjustment, and is excellent in operability.

A device according to a second aspect is the soot slurry transfer device according to the first aspect, wherein the outlet of the branch pipe is arranged to face the bottom surface of the tank.
With this configuration, in addition to the functions and effects obtained in the first aspect, the following functions are obtained.
(1) By arranging the outlet of the branch pipe so as to face the bottom of the tank, it is possible to forcibly convect the soot that has settled at the bottom of the tank by the soot slurry discharged from the branch pipe. , Excellent efficiency and uniformity of stirring of soot slurry.
Here, the number and arrangement of the branch pipes can be selected as appropriate, but when arranged at equiangular intervals on the same circumference, the soot slurry in the tank can be evenly stirred, so that the soot precipitates. It can be effectively prevented.

Invention of Claim 3 is a dredged slurry transfer apparatus of Claim 1 or 2, Comprising: The said water level interlocking | linkage switch has a structure which is a float switch.
With this configuration, in addition to the functions and effects obtained in the first or second aspect, the following functions can be obtained.
(1) Since the water level interlock switch is a float switch, it is possible to switch between driving and stopping of the submersible pump immediately in conjunction with fluctuations in the water level of the soot slurry in the tank, and failure and malfunction are unlikely to occur. Excellent operation reliability and stability.
Here, a conventionally known float switch can be appropriately selected and used, the structure can be simplified at a low cost, and the mass productivity is excellent.

The principal part cross-sectional schematic front view which shows the structure of the soot processing system provided with the soot slurry transfer apparatus of Embodiment 1. FIG. (A) Main part cross-sectional schematic front view showing the soot slurry transfer apparatus of Embodiment 1 (b) Main part cross-sectional schematic plan view showing the soot slurry transfer apparatus of Embodiment 1

The best mode for carrying out the present invention will be described below with reference to the drawings. The technical scope of the present invention is not limited to these embodiments.
(Embodiment 1)
FIG. 1 is a schematic cross-sectional front view of an essential part showing a configuration of a soot processing system including a soot slurry transfer device according to a first embodiment.
In FIG. 1, reference numeral 10 denotes a solid-liquid separation device (dehydration) installed downstream by the soot slurry transfer device 1 of the first embodiment in which the soot slurry discharged from the disposer 30 described later is built in the lower part of the lower soot sink 20. ) A soot treatment system that is transported to and processed by 40, 11 is a control unit that controls the disposer 30 and solid-liquid separator (dehydrator) 40 of the soot treatment system 10, 21 is a sink part of the lower soot sink 20, and 21a is A water supply unit provided in the sink part 21, 21 b is a soot inlet formed in the sink part 21, and 30 is provided in the lower part of the sink part 21 and is connected to the soot inlet 21 b and supplied from the soot inlet 21 b. Disposer which adds water supplied from water supply unit 21a to pulverize and generates pulverized slurry, and 31 indicates pulverized slurry transferred by disposer 30 A garbage slurry discharge pipe for sending the location 1.

Next, details of the soot slurry transfer device will be described.
FIG. 2 (a) is a schematic cross-sectional front view of the main part showing the soot slurry transfer apparatus of the first embodiment, and FIG. 2 (b) is a schematic cross-sectional plan view of the main part showing the soot slurry transfer apparatus of the first embodiment. is there.
In FIG. 2, 2 is a tank for storing the soot slurry discharged from the disposer 30, 2 a is the bottom surface of the tank 2, 3 is a submersible pump submerged in the tank 2, 4 is a soot stored in the tank 2 A water level interlocking switch using a float switch that switches between driving and stopping of the submersible pump 3 by moving up and down according to the level of the slurry, 5 is a discharge port 3a of the submersible pump 3 and a solid-liquid separator (dehydrator) 40 (see FIG. 1) is connected to the transfer pipe 6, and is branched from the transfer pipe 5 so that part of the soot slurry flowing through the transfer pipe 5 is discharged from the discharge port 6 a toward the bottom surface 2 a of the tank 2. A pipe 7 is a flow rate adjusting unit that is provided in each branch pipe 6 and uses a flow rate adjusting valve such as a ball valve or a gate valve for adjusting the flow rate of the soot slurry flowing through the transfer pipe 5 and the branch pipe 6.
In FIG. 2A, H1 is the upper limit water level of the soot slurry that starts driving the submersible pump 3, and H2 is the lower limit water level of the soot slurry that stops driving the submersible pump 3.

The operation of the soot slurry transfer apparatus of the first embodiment configured as described above will be described.
In FIG. 1, the soot introduced into the disposer 30 from the soot inlet 21b of the sink part 21 is added with water supplied from the water supply part 21a, pulverized and discharged as soot slurry. The soot slurry discharged from the disposer 30 is sent to the tank 2 of the soot slurry transfer device 1 through the soot slurry discharge pipe 31. At this time, the connection position of the soot slurry discharge pipe 31 can be selected as appropriate. However, when the soot slurry discharge pipe 31 is connected to the lower side of the tank 2, the water accumulated above the tank 2 is trapped. Thus, the generation of odor can be effectively prevented. Moreover, the swirl flow of the soot slurry can be generated in the tank 2 by the flow rate of the soot slurry discharged from the soot slurry discharge pipe 31, and soot can be collected near the submersible pump 3.

In FIG. 2A, when the water level of the soot slurry in the tank 2 rises, the float 4a of the water level interlock switch 4 rises accordingly, and the submersible pump 3 is driven when the water level reaches the preset upper limit water level H1. Is done. When the submersible pump 3 is driven, the soot slurry discharged from the discharge port 3a of the submersible pump 3 passes through the transfer pipe 5 and is transferred to a solid-liquid separator (dehydrator) 40 installed in a separate chamber or the like. Separation (dehydration) processing is performed. The solid content separated by the solid-liquid separator (dehydrator) 40 is collected and disposed of by incineration, landfill, or the like, or recycled as compost raw materials. Further, the liquid component (drainage) separated by the solid-liquid separation device (dehydrator) 40 is purified by a wastewater treatment device (not shown) such as a water purification tank installed outdoors.
When the submersible pump 3 is driven, the level of the soot slurry in the tank 2 is lowered, and the driving of the submersible pump 3 is stopped when the water level reaches a preset lower limit water level H2. Thus, when the water level of the soot slurry reaches the preset upper limit water level H1, the driving of the submersible pump 3 is started, and when the water level of the soot slurry reaches the lower limit water level H2, the driving of the pump 30 is stopped so that the soot slurry is efficiently The submersible pump 3 can be driven efficiently.

  While the submersible pump 3 is being driven, part of the soot slurry discharged from the discharge port 3 a of the submersible pump 3 passes through the branch pipe 6 and is discharged from the discharge port 6 a toward the bottom surface 2 a of the tank 2. Thereby, the soot slurry exceeding the processing amount of the waste water treatment device 40 can be prevented from being sent to the solid-liquid separator (dehydrator) 40, so that the soot slurry can be treated reliably, and from the discharge port 6a. The soot slurry discharged on the bottom surface 2a of the tank 2 is stirred up and forced to convection, and the soot slurry is reliably separated into a solid-liquid separator (dehydrator) without leaving soot in the tank 2. ) 40 can be transferred. At this time, the soot flowing through the transfer pipe 5 and the branch pipe 6 according to the amount of soot slurry received in the solid-liquid separator (dehydrator) 40, the transfer distance from the tank 2 to the solid-liquid separator (dehydrator) 40, and the like. The flow rate balance of the slurry can be adjusted by the flow rate adjusting unit 7. In addition, without using the solid-liquid separation device (dehydrator) 40, the sludge slurry can be directly purified by a wastewater treatment device such as a water purification tank. The flow rate adjustment unit 7 may adjust the flow rate according to the transfer distance from the tank 2 to the wastewater treatment device such as a water purification tank.

In the present embodiment, the two branch pipes 6 are arranged on both sides of the submersible pump 3, but the number and arrangement of the branch pipes 6 can be appropriately selected. For example, if a plurality of branch pipes 6 are evenly arranged around the submersible pump 3, the soot slurry in the tank 2 can be uniformly and efficiently stirred to prevent soot precipitation. Further, in the present embodiment, the soot slurry discharged from the branch pipe 6 is discharged toward the bottom surface 2a of the tank 2, but is discharged radially from the center of the tank 2 toward the peripheral wall at the corner. It is possible to prevent the soot from staying and to enhance the stirring effect.
In the present embodiment, the flow rate adjusting unit 7 is provided in each branch pipe 6, but the flow rate adjusting unit 7 may be provided only in the transfer pipe 5 or in the branch part between the transfer pipe 5 and the branch pipe 6. It may be provided. Further, when an electromagnetic valve is used for the flow rate adjusting unit 7, the opening / closing of the valve and the control of the flow rate adjustment are easy and the operability is excellent.

According to the soot slurry transfer apparatus in the first embodiment of the present invention, the following operation is obtained.
(1) Tank for storing dredged slurry discharged from the disposer, submersible pump set in the tank, and water level for driving the submersible pump when the level of dredged slurry stored in the tank is within a preset range By having the interlock switch, air is sucked into the submersible pump and air lock does not occur, so that the soot slurry can be reliably transferred, and the reliability of the soot slurry transfer and the operational stability are excellent.
(2) By having a water level interlocking switch that drives the submersible pump when the level of the soot slurry stored in the tank is within a preset range, the submersible pump is intermittently operated during the operation of the disposer to ensure reliable and efficient In addition, since the soot slurry can be transferred, the submersible pump is not driven unnecessarily, and energy saving is excellent.
(3) By using a submersible pump for the transfer of soot slurry, vibration and noise are small compared to conventional roots pumps, and it is excellent in quietness, has a long life, and is excellent in durability and maintainability.
(4) Since it has a transfer pipe that connects between the discharge port of the submersible pump and the waste water treatment device, and a branch pipe that discharges part of the soot slurry that flows from the transfer pipe and flows through the transfer pipe into the tank. While transferring the soot slurry in the pipe, the soot slurry in the tank can be agitated by a part of the soot slurry discharged from the branch pipe into the tank to generate forced convection, and soot is precipitated in the tank. This can be prevented and the soot slurry can be reliably and efficiently transferred to the waste water treatment apparatus.
(5) Since a part of the soot slurry transferred by the submersible pump can be discharged from the branch pipe and the soot slurry in the tank can be agitated, it does not require a separate stirring means such as a mixer, and is excellent in energy saving. .
(6) Since it has a flow rate adjusting unit that is arranged in the transfer pipe or the branch pipe and adjusts the flow rate of the soot slurry flowing through the transfer pipe and the branch pipe, the received amount of the soot slurry and the waste water treatment apparatus of the waste water treatment apparatus as the transfer destination Depending on the transfer distance, the flow rate of the soot slurry flowing through the transfer pipe can be adjusted to reliably and efficiently transfer the soot slurry, and the soot slurry flowing through the branch pipe according to the tank capacity etc. By adjusting the flow rate, the amount of soot slurry discharged from the branch pipe can be adjusted to stir the soot slurry in the tank reliably and efficiently, and the efficiency and stability of soot slurry transfer are excellent. .
(7) Since the flow rate of the soot slurry can be easily adjusted by the flow rate adjustment unit, it is not necessary to reduce the capacity of the submersible pump by adjusting the rotation speed with an inverter, etc., and failure is unlikely to occur. Easy to control and excellent in handling and operability.
(8) By arranging the outlet of the branch pipe so as to face the bottom of the tank, it is possible to forcibly convect the soot that has settled at the bottom of the tank by the soot slurry discharged from the branch pipe. , Excellent efficiency and uniformity of stirring of soot slurry.
(9) Since the water level interlock switch is a float switch, it is possible to switch between driving and stopping of the submersible pump immediately in conjunction with the fluctuation of the water level of the soot slurry in the tank, and failure and malfunction are unlikely to occur. Excellent operation reliability and stability.

  The present invention has a simple configuration and can reliably transfer soot slurry without causing malfunction, and can prevent soot sedimentation, and is excellent in operational reliability, efficiency of soot slurry transfer, and reliability. In addition, it operates stably over a long period of time, has excellent durability, long life, maintenance, low vibration and noise, excellent quietness, and by adjusting the flow rate according to the transfer distance, An appropriate amount of soot slurry can be efficiently transferred, so that a soot slurry transfer device excellent in versatility and energy saving can be provided, and a soot treatment system using a disposer can be widely used.

DESCRIPTION OF SYMBOLS 1 Soot slurry transfer apparatus 2 Tank 2a Bottom face 3 Submersible pumps 3a, 6a Discharge port 4 Water level interlocking switch 4a Float 5 Transfer pipe 6 Branch pipe 7 Flow control part 10 Soot processing system 11 Control part 20 Lower soot sink 21 Sink part 21a Water supply part 21b Soot inlet 30 Disposer 31 Soot slurry discharge pipe 40 Solid-liquid separator (dehydrator)

Claims (3)

A soot slurry transfer device for transferring soot slurry discharged from a disposer to a downstream wastewater treatment device,
A tank for storing dredged slurry discharged from the disposer, a submersible pump set in the tank, and driving the submersible pump when the water level of the dredged slurry stored in the tank is within a preset range A water level interlocking switch, a transfer pipe connecting the discharge port of the submersible pump and the waste water treatment device, and a part of the soot slurry branched from the transfer pipe and flowing through the transfer pipe is discharged into the tank. A soot slurry transfer apparatus comprising: a branch pipe to be adjusted; and a flow rate adjusting unit that adjusts a flow rate of the soot slurry that is disposed in the transfer pipe or the branch pipe and flows through the transfer pipe and the branch pipe. The soot slurry transfer device according to claim 1, wherein an outlet of the branch pipe is disposed to face a bottom surface of the tank. The soot slurry transfer apparatus according to claim 1 or 2, wherein the water level interlocking switch is a float switch.

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