JPH0734504A - Garbage conveyance device - Google Patents

Abstract

PURPOSE:To carry sewage containing garbage crushed with a disposer by a method wherein a simple structure employing a submersible pump available for vacuum suction and pressure conveyance is introduced. CONSTITUTION:A submersible pump 2 is provided in an airtight tank 1 in which water is stored beforehand, and a discharge port of the submersible pump 2 is opened to the inside of the airtight tank 1 while a circulating pipe 6 is provided to a suction port of the submersible pump 2 for cycling the water in the airtight tank 1. An influx port 8 is provided in the middle of the circulating pipe with an efflux pipe 12 of a disposer 11 connected thereto, and sewage containing garbage is sucked by negative pressure. Thereby, the garbage is sucked successively and carried under pressure to the outside through a discharge pipe 4 provided to the upper part of the airtight tank 1 as the submersible pump 2 in the airtight tank 1 is actuated, interlocking with operation of the disposer 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a garbage transfer device, and more particularly, to a garbage transfer device capable of pumping sewage containing crushed garbage to the outside of the system using a pump.

[0002]

2. Description of the Related Art Generally, kitchen waste generated in a kitchen is crushed by a kitchen crusher (disposer) and discharged. An underwater pump is often used as a means for pumping sewage containing kitchen waste discharged from the kitchen crusher. That is, as shown in FIG. 12, sewage containing garbage that has been crushed by a crusher 50 is transferred to a sewage tank 52 by a pipe 51 that naturally flows. The submersible pump 53 is arranged in the waste water tank 52, and when a certain amount of waste water is stored in the waste water tank 52, the upper water level detector 54 is activated and the submersible pump 53 is activated to directly discharge the waste water to the outside of the system. I try to carry it out. When the submersible pump 53 is activated, the water level in the dirty water tank 52 decreases, and the lower water level detector 55 operates, the submersible pump 53
Is supposed to stop. The lower water level detector 55
Has carefully set the installation position so that the submersible pump 53 does not suck in air.

As an apparatus for vacuum-transferring waste water containing garbage, there is a vacuum transfer apparatus using a vacuum pump as shown in FIG. This vacuum transfer device includes a garbage crusher 56 and a storage tank 57, and a suction pipe 58 is inserted into the storage tank 57. The other end of the suction pipe 58 is connected to a vacuum sewer pipe 59. A vacuum valve 60 is installed in the middle of the suction pipe 58, and the vacuum valve 60 is opened and closed by the operation of the water level detector 61 in the storage tank 57. This device keeps the inside of the vacuum sewer pipe 59 closed by the vacuum valve 60 at a negative pressure by a vacuum pump or the like in advance, stores the waste water containing garbage in the storage tank 57, and detects the water level when a certain amount of the waste water is stored. The container 12 operates and the vacuum valve 60 opens, and the dirty water is sucked and discharged to the outside of the system.

[0004]

However, the conventional submersible pump 53 shown in FIG. 12 for pumping sewage containing kitchen waste causes less failure of the submersible pump 53 itself.
Waste water containing garbage is piped from the garbage crusher 50 by gravity flow 5
In order to transfer the wastewater in No. 1 and make it stay in the wastewater tank 52, there is a limitation on the gradient and length of the pipe 51 from the garbage crusher 50 to the wastewater tank 52. Further, the sewage accumulated in the sewage tank 52 was easily decomposed and the bad odor was generated. Further, since the submersible pump 53 is started and stopped by the installed water level detectors 54, 54, malfunction of the submersible pump 53 due to failure of the water level detectors 54, 55 due to entanglement of foreign matter or lower water level detection below the stop water level Due to the installation of the vessel 55, there was a trouble such as an air lock due to the suction of air by the submersible pump 53 and the accompanying inability to pump water.

Next, in the conventional vacuum transfer device shown in FIG. 13, since it is necessary to transfer the waste water from the garbage crusher 56 to the storage tank 57 under a natural flow, the installation location of the storage tank 57 is limited. Further, there is a problem of reliability of accessories such as a failure of the water level detector 61 in the storage tank 57 due to entanglement of foreign matter and a failure such as clogging of the vacuum valve 60. Further, in order to keep the vacuum sewer pipe 59 in a vacuum, a vacuum pump is required at the end of the vacuum sewer pipe 59, and the output thereof is large and the noise is large. And vacuum pressure (up to -10m)
Therefore, it was not possible to suck a long distance, and it was not possible to transfer sewage after the vacuum pump, in which case a separate pump was required.

Therefore, according to the present invention, the wastewater containing the garbage can be transferred from the garbage crusher to the inlet of the transfer device without being restricted by the gradient of the pipe, and the water level detector causing the failure or the transfer causing the clogging can be obtained. An object of the present invention is to provide a kitchen waste transfer device capable of stably pumping sewage containing kitchen waste crushed by a kitchen crusher without using valves in a pipe.

[0007]

In order to achieve the above-mentioned object, the present invention has a submersible pump built in a sealed tank in which water is stored in advance, and the outlet of the submersible pump is opened in the sealed tank to be hermetically sealed. A pipe for circulating water in the tank to the submersible pump suction port is installed, an inflow port is provided in the middle of the pipe, and the outflow pipe of the garbage crusher is connected to this inflow port. A pipe for external discharge is connected to the upper part of the closed tank, the submersible pump in the closed tank is activated in conjunction with the garbage crusher, and a mixed water of waste water containing garbage and air is discharged from the closed tank to the outside. It is configured to be able to be pumped through.

[0008]

In the above structure, the submersible pump sucks and circulates the stored water in the closed tank. However, a negative pressure is generated at the inlet of the circulating pipe, and the submersible pump is self-priming. Here, the sewage containing the garbage that is crushed by the garbage crusher is sucked into the inflow port together with air. The sewage sucked into the inflow port flows into the submersible pump together with the circulating water, is pressurized by the submersible pump, discharges the sewage and air into the sealed tank, fills the sealed tank, and then discharges from the external discharge pipe to the outside of the system. Will be done.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional view of the garbage transfer device of this embodiment. Reference numeral 1 in the figure is a closed tank installed in the apparatus, and an underwater pump 2 is installed therein. A tank lid 3 is attached to the closed tank 1 in a watertight manner. An external discharge pipe 4 for discharging dirty water, which penetrates the tank lid 3 in a watertight manner, is inserted in the upper part of the closed tank 1. A pump cable 5 penetrates the tank lid 3 in a watertight manner. In the lower part of the closed tank 1, from the bottom of the closed tank 1 to the closed tank 1
A circulation pipe 6 is provided for sucking the stored water therein and circulating it to the pump suction port. An ejector nozzle 7 is installed in the middle of the circulation pipe 6, and an inflow port 8 for sucking sewage containing garbage is provided on the downstream side of the ejector nozzle 7.
Is opened. An inflow pipe 9 is connected to the inflow port 8, and the inflow pipe 9 is erected to a position higher than the in-tank pipe opening 10 of the external discharge pipe 4 described above, and the outflow pipe of the garbage crusher 11 at the uppermost portion. It is connected to 12. A pipe 13 communicating with the closed tank 1 is connected to the rising top of the inflow pipe 9, and an electromagnetic valve 14 is installed in the middle of the pipe 13. Normally, the valve is closed when not energized. There is. The tank lid 3 is provided with a priming plug 15, and the opening / closing tank 1 is supported by legs 16. The garbage crusher 11 is connected to a water tank 17 of a sink, and the water tank 17 is associated with a faucet 19 whose water flow is controlled by a solenoid valve 18 to supply the crushing water to the kitchen crusher 11. An operation switch 20 is provided on the main body of the apparatus, and a control panel 21 associated therewith is provided. The control panel 21 has an internal control unit and a drive unit (not shown) such as a relay. When the operation switch 20 is pressed, the control panel 21
By controlling the above, the start and stop of the solenoid valve 14, the garbage crusher 11, and the submersible pump 12 are controlled.

The submersible pump 2 has a handle 22 on the upper part for maintenance purposes, and the handle 22 is located in the air in the upper part of the closed tank 1. Next, the structure of the submersible pump 2 will be described with reference to FIG. The submersible pump 2 has a motor 23, and an impeller 25 is inserted into the tip of a shaft 24 connected to the motor 23 and is tightened with a nut to be attached. The pump casing 26 is attached to the motor bracket 27 with bolts. The impeller 25 is an open blade (open type), and a gap W is provided between the entire surface end of the impeller 25 and the bottom surface of the pump casing 26. The pump casing 2
The discharge port 28 formed in 6 is opened in the closed tank 1.

The operation of the garbage transfer device having the above structure will be described. First, the operation preparation will be described. Water is injected into the closed tank 1 by opening the priming plug 15 in advance. After filling with water, the priming plug 15 is sufficiently fastened to the tank lid 3.

Next, the operation control method will be described. By pressing the operation switch 20 and controlling the inside of the control panel 21, the solenoid valve 1
8. The garbage crusher 11 and the submersible pump 2 are turned on by applying a relay voltage to the control panel drive unit, and are simultaneously activated.
Tap water is supplied from the faucet 19 to the kitchen crusher 11, where the kitchen waste is charged, crushed, and processed. After the garbage treatment, when the operation is stopped, when a stop switch (not shown) is pressed, the voltage applied to the relay of the control drive unit is released by the control of the control panel 21, and first, the solenoid valve 14 is closed to stop the water supply.
Next, the kitchen waste crusher 11 is stopped in about 5 seconds with the delay timer, and the submersible pump 2 is stopped in about 30 seconds with the delay timer as well. The operation time of the submersible pump 2 is to supply tap water and to dispose of the kitchen waste. It takes longer than the operation of machine 11.

Next, the internal operation of the transfer device will be described with reference to FIG. When the submersible pump 2 is activated, the submersible pump 2 continuously sucks the water 29 in the closed tank 1 through the circulation pipe 6, pressurizes the water 29 with the impeller 25, and then discharges the water 29 into the closed tank 1 through the discharge port 28. Since the contraction section 30 by the ejector nozzle 7 is provided in the middle of the circulation pipe 6,
A large negative pressure is generated when the circulating water passes through the ejector nozzle 7, sucks the dirty water from the inflow port 8, mixes with the circulating water, and is sucked by the submersible pump 2. The circulation pipe 6
Even if there is no ejector nozzle in the middle of the process, a negative suction pressure of the submersible pump and a self-suction effect generated by constantly circulating water through the pump suction port can generate a suction effect by the negative pressure at the inflow port 8.

At the inlet 8, the outflow pipe 1 of the garbage crusher 11
Inflow pipe 9 to which 2 is connected is connected, and inflow port 8
Due to the negative pressure generated at, the crushed garbage and the tap water used for crushing are forcibly and continuously sucked into the submersible pump 2.
At this time, at the same time, the air sucked from the input port of the garbage crusher 11 is sucked. At this time, if there is no circulating water, the air once sucked into the submersible pump 2 gathers at the center of the impeller 25 due to the centrifugal separation effect in the submersible pump 2, and the impeller 2
No water will reach 5 and the pump pressure cannot be generated due to the so-called airlock phenomenon. However, in the present embodiment, the air sucked into the submersible pump 2 rides on the flow of the circulating water continuously sucked, and is continuously discharged from the discharge port 28 of the submersible pump 2 to the outside of the submersible pump 2.
The so-called self-priming action can prevent the airlock phenomenon of the submersible pump 2. Therefore, the pressure of the submersible pump 2 is stable, the circulating water can be continuously circulated, and the negative pressure at the inflow port 8 can be stably generated. The garbage and water are not affected by the gradient of the outflow pipe 12 of the garbage crusher 11, and can be forcibly and continuously vacuum-transferred to the garbage transfer device (submersible pump).

The kitchen, the tap water and the air sucked into the submersible pump 2 have a wide clearance W on the entire surface of the impeller 25, so that the submersible pump 2 is not clogged with the kitchen waste and the submersible pump 2 discharges it. It is discharged from the mouth 28 into the closed tank 1. Since the wastewater containing garbage is pressurized in the submersible pump 2, the wastewater containing garbage filling the closed tank 1 is discharged from the external discharge pipe 4 to the outside of the garbage transfer device system as pressure water. Therefore, the kitchen waste can be transferred from the kitchen transfer device to a distant place or a high place, and the kitchen crusher 1
Since the garbage is finely crushed in No. 1, it can be pumped with a small diameter pipe. Further, the air sucked by the submersible pump 2 is compressed and forcibly discharged to the external discharge pipe 4 together with the waste water containing garbage. Therefore, even if the inflowing wastewater is interrupted and the wastewater stays in the external discharge pipe 4, if the submersible pump 2 is operated for a while with the delay timer, the wastewater collected in the external discharge pipe 4 will be forced by the compressed air. Is discharged to the outside of the system. Therefore, there is no accumulation of dirty water in the external discharge pipe 4, and there is no backflow of dirty water from the external discharge pipe 4 into the closed tank 1 when the submersible pump 2 is stopped. Therefore, valves such as a check valve are not required in the external discharge pipe 4, and there is no fear of malfunction such as clogging of the valves.

Next, the operation of the inflow pipe 9 in the transfer device after the submersible pump 2 is stopped will be described with reference to FIG. The inflow pipe 9 of the kitchen waste transfer device is provided with a rising pipe up to a position H higher than the internal pipe opening 10 of the external discharge pipe 4, and the inflow pipe 9 is always sucked by negative pressure, and after the suction of the dirty water is completed. Since the air A is sucked into the transfer device while the submersible pump 2 is operating with the delay timer, the inflow pipe 9 contains air and is not filled with water. Further, after the submersible pump 2 is stopped, the reverse flow of the dirty water in the external discharge pipe 4 can be prevented as described above, so that the reverse flow of the dirty water does not occur. Therefore, after the submersible pump 2 is stopped, as shown in FIG. 5, when the water level rises to the level of the stored water in the closed tank 1 of the inflow pipe 9, the water level is balanced and the water in the closed tank 1 escapes by a siphon phenomenon. There is no such thing.

Next, regarding the structural point, as shown in FIG. 6, the pump cable 5 penetrating the tank lid 3 of the closed tank 1 has its outer periphery covered with an elastic member 31 such as rubber, and the elastic member 31 is tightened. The pump cable 5 and the penetrating portion are sealed by the tightening force K by tightening the tank lid 3 with the flange 32 using the bolts 33 so as to prevent the leakage m of the dirty water in the closed tank 1 from the pump cable penetrating portion. To prevent.

Further, the pump casing 2 of the submersible pump 2
As shown in FIG. 5, the circulation pipe 6 is inserted into the 6 through the O-ring 34. Therefore, when replacing the submersible pump 2, the tank lid 3 of the closed tank 1 is opened, and the submersible pump 2 is replaced.
You can easily replace it by pulling it up. Further, since the handle 22 of the submersible pump 2 is always in the air of the insertion pipe portion of the external discharge pipe 4 in the closed tank 1 and is not in contact with the dirty water, the handle 22 can be maintained sanitarily.

The second embodiment of the present invention will be described below. As shown in FIG. 7, the rising top 3 of the inflow pipe 9
5 is provided with a solenoid valve 18 in the middle of a pipe 13 that communicates the inside of the closed tank 1, and the solenoid valve 18 is opened at the same time when the submersible pump 2 is stopped, so that the siphon phenomenon is reliably prevented and the water in the closed tank 1 It does not come out due to the siphon phenomenon.

More specifically, if the submersible pump 2 is operated for a sufficient time after the garbage crusher 11 is stopped and the waste water in the external discharge pipe 4 is discharged, the inflow pipe 9 does not collect water, Since there is no backflow from the exhaust pipe 4, the San Hong phenomenon does not occur, but since there is a portion of the external exhaust pipe 4 that is inserted into the closed tank 1, an air pocket 36 is formed above the closed tank 1. This air is boosted by the pump pressure until the sewage 37 in the external discharge pipe 4 is completely discharged. Therefore, when the submersible pump 2 is stopped, the sewage 37 remains in the external discharge pipe 4 for some reason. When the closed tank 1 does not communicate with the atmosphere at the outlet 38 of the external discharge pipe 4, that is, when the closed tank 1 is not opened to the atmosphere, the air pressure in the closed tank 1 causes the stored water in the closed tank 1 to be stored. The pressure P may be applied to cause the stored water to flow backward from the inflow pipe 9 over the height H. Then, the siphon phenomenon occurs as shown in FIG. 8, and the closed tank 1
The stored water inside will fall out. In order to prevent this, the solenoid valve 14 is provided in the middle of the pipe 13 that connects the rising top 35 of the inflow pipe 9 and the closed tank 1, and the solenoid valve 14 is opened at the same time when the submersible pump 2 is stopped. Then,
As shown in FIG. 9, the compressed air B in the closed tank 1 is supplied to the rising part of the inflow pipe 9, and one of them is supplied with air from the inflow port 8 through the inflow pipe 9 to the suction port of the submersible pump 2 so that the closed tank is closed. The backflow of the stored water in 1 is prevented, and one side passes through the outflow pipe 12 of the garbage crusher 11, the air is discharged from the garbage inlet 39 of the garbage crusher 11, and the inside of the closed tank 1 is opened to the atmosphere. As shown in FIG. 10, the water levels in the inflow pipe 9 and the closed tank 1 are balanced. Therefore, the closed tank 1
It is possible to prevent the siphon phenomenon by returning the inside of the closed tank 1 to the atmosphere open state while preventing the backflow of the stored water inside.

The third embodiment of the present invention will be described below with reference to the drawings. The present embodiment is characterized in that a storage tank 40 is provided in the middle of the inflow pipe 9 of the garbage transfer device and the outflow pipe 12 of the garbage crusher 11 as shown in FIG. The storage tank 40 is open to the atmosphere, and the ventilation pipe 4 is used.
1 is provided. The storage tank 40 is the garbage crusher 1
It is installed at a position where sewage containing kitchen waste that flows out from No. 1 flows in under natural flow. The garbage transfer device 42 is installed at a distance (for example, 10 m) from the storage tank 40, and the pipe 43 connecting the storage tank 40 and the garbage transfer device 42 is not restricted by a gradient. An external discharge pipe 4 is connected from the garbage transfer device 42 and is piped to the outside of the system. The apparatus of this embodiment is configured as described above, and the operation will be described next.

After depressing the operation switch 20, the solenoid valve 18 is opened to supply tap water to the garbage crusher 11, and at the same time, the garbage crusher 11 is activated to crush the garbage. At the same time, the submersible pump 2 described in the first embodiment of the present invention, which is built in the garbage transfer device 42, is activated, a negative pressure is generated in the inflow portion 8 of the garbage transfer device 42, and air in the pipe is removed. I will inhale.
However, since the garbage transfer device 42 is installed far from the garbage crusher 11 and the pipe 43 is long, it takes time to suck the air in the pipe 43 into the garbage transfer device 42 and discharge it to the outside of the system. For this reason, the sewage containing the crushed kitchen waste accumulates in the storage tank 40 under natural flow. When the submersible pump 2 with the built-in garbage transfer device 42 discharges all the air in the pipe 43 to the outside of the system and the self-priming of the submersible pump 2 is completed, the wastewater containing the garbage collected in the storage tank 40 is immediately transferred to the submersible pump 2. It is sucked and pressure-fed from the garbage transfer device 42 to the outside of the system.
That is, if the storage tank 40 is installed in the middle of the pipes of the garbage crusher 11 and the garbage transfer device 42, the garbage transfer device 42 can be installed at a position far from the garbage crusher 11, and the gradient of the pipe 43 from the storage tank 40 can also be set. Can be installed freely.

As described above, in each of the above-mentioned embodiments, the waste water containing the garbage and the air crushed and discharged from the garbage crusher 11 and the air,
It can be forcibly sucked into the garbage transfer device 42 continuously by negative pressure,
After suction, submersible pump 2 built in the garbage transfer device 42
Can be pumped out of the system. In addition, as a method of sucking sewage, the self-priming action of the water discharged from the submersible pump or the negative pressure action of passing the circulated water through the ejector nozzle 7 can simultaneously suck the garbage, the sewage, and the air. Does not occur. Further, by sucking in air at the same time, a three-phase flow of gas-liquid mixture is formed, and the solid substance can be easily transferred, the apparent specific gravity of the transferred substance is reduced, and the load on the motor 23 can be reduced. Moreover, since the air is forcibly sucked and discharged, the dirty water accumulated in the external discharge pipe 4 can be forcedly discharged by the air, and a check valve for preventing backflow is not required in the middle of the external discharge pipe 4. Further, since the inflow pipe 9 connecting the garbage crusher 11 and the garbage transfer device 42 is raised, the stored water in the closed tank 1 does not flow backward due to the siphon phenomenon, so that stable operation is possible in the next operation. Get burned. Further, the rising inflow pipe 9 and the closed tank 1 are connected by the pipe 13 and the solenoid valve 14 is provided on the way, whereby the siphon phenomenon can be forcibly prevented. Further, by installing the garbage waste water storage tank 40 in the middle of the inflow pipe 9 on the garbage crusher 11 side, the garbage transfer device 42 is installed in the garbage crusher 1.
The installation layout can be freely designed without worrying about the gradient of the pipes 43 from 1 and can be installed in a distant place, and the burden of construction work can be reduced.

[0024]

As is apparent from the above description of the embodiments, the present invention, as a garbage transfer device, incorporates a submersible pump without a water level detector in a small closed tank, and incorporates self-priming circulating water and an ejector nozzle. By having a vacuum suction effect and a gas-liquid mixed water discharge effect of a self-priming pump, forcibly and continuously sucking sewage containing garbage to the transfer device,
Since it is possible to provide a kitchen waste transfer device that can send pressure from the transfer device to a distant place at the same time, it is possible to eliminate the failure of the water level detector in the conventional submersible pump system that uses the water level detector in the dirty water tank, and the accompanying inability to pump water with the air lock. In addition, a large-scale kitchen transfer facility using a vacuum sewer pipe using a conventional vacuum pump, such as a waste water tank, a vacuum valve, and a water level detector, is not required. Also, the piping that connects the garbage crusher and the transfer device is
Construction work can be done with a small diameter without worrying about the natural flow gradient, and the cost of construction work can be reduced.By installing a storage tank in the discharge pipe of the garbage crusher, the transfer device can be installed freely and far from the transfer device. Since it can be pumped to, it is possible to freely design the garbage transfer according to the situation of the site. In addition, there is no need for valves or water level detectors in the middle of the pipe, and kitchen waste can be transferred without maintenance.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a garbage transfer device according to a first embodiment of the present invention.

FIG. 2 is a sectional view of a pump portion of the submersible pump in the kitchen waste transfer device.

FIG. 3 is an explanatory diagram of the flow of circulating water in the kitchen waste transfer device.

FIG. 4 is an explanatory diagram of a flow of vacuum suction in the kitchen waste transfer device.

FIG. 5 is an explanatory view of the water level when the pump is stopped in the kitchen waste transfer device.

FIG. 6 is a sectional view of a seal portion of a pump cable in the submersible pump of the kitchen waste transfer device.

FIG. 7 is an explanatory view of a state of an air pool in a closed tank in the kitchen waste transfer device.

FIG. 8 is an explanatory view of the siphon phenomenon of stored water when the solenoid valve in the kitchen waste transfer device is not opened.

FIG. 9 is an explanatory view of the action of internal pressure when the solenoid valve in the kitchen waste transfer device is opened.

FIG. 10 is an explanatory diagram of the water level when the pump is stopped when the solenoid valve in the kitchen waste transfer device is opened.

FIG. 11 is a configuration diagram of a garbage transfer device according to another embodiment of the present invention.

[Fig. 12] Configuration diagram of a conventional submersible pump pressure-feeding type garbage transfer device

FIG. 13 is a configuration diagram of a conventional vacuum-type kitchen waste transfer device.

[Explanation of symbols]

 1 Closed Tank 2 Submersible Pump 3 Tank Lid 4 External Carry Out Pipe 5 Pump Cable 6 Value Ring Pipe 7 Ejector Nozzle 8 Inlet 9 Inlet Piping 10 Tank Piping Opening 11 Garbage Crusher 12 Outlet Pipe 13 Piping 14 Solenoid Valve 15 Priming Plug 16 legs 17 water tank 18 solenoid valve 19 faucet 20 operation switch 21 control panel 22 handle

Claims (5)

[Claims] 1. A submersible pump is provided in a closed tank for storing water, a circulation pipe for circulating the stored water in the closed tank is connected to the suction port of the submersible pump, and the submerged pump is carried out to the upper part of the closed tank. A kitchen waste transfer device in which a pipe is provided, an inflow port is provided in the middle of the circulation pipe, and an inflow pipe is connected to the inflow port for inflowing waste water discharged from the garbage mill. 2. The kitchen waste transfer device according to claim 1, wherein the inflow pipe is piped so as to rise to a position higher than the inlet of the closed tank of the external carry-out pipe. 3. The kitchen waste transfer device according to claim 1, wherein an ejector nozzle is provided in the middle of the circulation pipe, and an inflow port is provided at a downstream portion of the ejector nozzle. 4. The kitchen waste transfer device according to claim 1, wherein a pipe that connects the rising top of the inflow pipe and the inside of the closed tank is provided, and an electromagnetic valve is provided in the middle of the pipe. 5. The kitchen waste transfer device according to claim 1, wherein a storage tank for storing dirty water is installed on the inflow side of the inflow pipe.