JPH11222918A - Transfer device for fluid intermixed with solid or the like - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a transfer device for a fluid intermixed with solid or the like, low in both equipment cost and power cost. SOLUTION: A transfer device for a fluid intermixed with solid or the like is provided with a fluid pump 13 with a suction port 23 and a discharge port 24; a first feed pipeline 31 extended from a transfer fluid reservoir 11 to the suction port 23; a second feed pipeline 32 extended from the discharge port 24 to a fluid transfer destination 12; and a return pipeline 34 branched from the second feed pipeline 32 and returning to the transfer fluid reservoir 11 for agitating a fluid in the transfer fluid reservoir.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the transfer of fluids such as solids, and more particularly, for example, cleaning of sewage gutters, suction of sediment such as thickeners, dredging of rivers, seas, lakes, etc., and slurry. The present invention relates to a transfer device for transferring a fluid when stirring and transporting a fluid, and supplying the fluid to a dehydrator, a separator and the like.

[0002]

2. Description of the Related Art This type of device includes a fluid pump having a suction port and a discharge port, a first feed pipeline extending from a transfer fluid reservoir to a suction port, and a second feed pipeline extending from the discharge port to a fluid transfer destination. 2. Description of the Related Art There is known an apparatus provided with a pipeline and a stirring blade arranged to be capable of stirring a fluid in a transfer fluid reservoir.

[0003]

In the above-mentioned apparatus, since the stirring blade is required, the equipment cost of the stirring blade is expensive,
There is a problem that power cost for operating the stirring blade is expensive.

[0004] It is an object of the present invention to provide a device for transferring a fluid mixed with solids or the like, which is inexpensive in equipment cost and power cost.

[0005]

SUMMARY OF THE INVENTION According to the present invention, there is provided a device for transferring a fluid containing solids or the like, comprising a liquid pump having a suction port and a discharge port, and a first pump extending from the transfer fluid reservoir to the suction port.
A feed pipeline, a second feed pipeline extending from the discharge port to the fluid transfer destination, and branched from the second feed pipeline and returned to the transfer fluid reservoir so that the fluid in the transfer fluid reservoir can be stirred. Return pipeline.

In the apparatus for transferring a fluid containing solids or the like according to the present invention, the fluid to be transferred is agitated by returning a part of the fluid being transferred. Since only a return pipeline is required, the equipment cost is low, and no special power is required, so that the power cost is low.

[0007] Also, the second feed pipeline has an inlet,
A cyclone having a high specific gravity fluid outlet and a low specific gravity fluid outlet, wherein the inlet is in communication with the outlet, the high specific gravity fluid outlet is in communication with the fluid transfer destination,
When the low specific gravity fluid outlet is communicated with the transfer fluid reservoir, the fluid being transferred is separated into a high specific gravity fluid and a low specific gravity fluid by the cyclone, and the high specific gravity fluid is sent to the transfer destination, and the low specific gravity fluid is sent. Is returned to the fluid reservoir, so that the high specific gravity fluid can be efficiently transferred.

If the return pipeline is provided with a pressure adjusting valve, the stirring can be efficiently performed by adjusting the pressure of the fluid used for stirring.

[0009]

Embodiments of the present invention will be described below with reference to the drawings.

Referring to FIG. 1, a supply tank 11, a recovery tank 12, and a fluid pump 13 are shown. Supply tank
11 stores muddy water D. The muddy water D is separated into a lower sand layer S and an upper water layer W.

The fluid pump 13 is a tube pump, and has a U-shaped rubber tube 21 and two rollers 22 that slide and rotate while crushing the tube 21. A suction port 23 is provided at one end of the tube 21 and a discharge port 24 is provided at the other end. The capacity of the pump 13 is, for example, a maximum suction force of 750 mmHg and a maximum discharge pressure of 35 kg / cm2.
The inlet end of the first feed pipe 31 is immersed in the muddy water D in the supply tank 11, and the outlet end thereof is connected to the suction port 23. The inlet end of the second feed pipe 32 is connected to the discharge port 24, and the outlet end thereof is connected to the collection tank 12. 2nd feed pipe
A branch hole 33 is provided in the vicinity of the entrance end of 32. The return pipe 34 has an inlet end connected to the branch hole 33 and an outlet end immersed in the muddy water D in the supply tank 11. Return pipe 34
A nozzle 35 is provided at the outlet end of the nozzle. As shown in detail in FIG. 3, the nozzle 35 penetrates a peripheral wall near the inlet end of the first feed pipe 31 so as to protrude therein, and is directed toward the bottom of the supply tank 11. The vicinity of the inlet end of the first feed pipe 31 and the nozzle 35 are surrounded by a mesh filter 36. Immediately downstream of the branch 33 of the second feed pipe 32 and the return pipe 34, pressure regulating valves 37 and 38 are provided, respectively. When the pump 13 is operated, the muddy water in the supply tank 11 is sucked into the pump 13 through the first feed pipe 31 and discharged from the pump 13. Most of the muddy water discharged from the pump 13 is sent out to the collection tank 12 through the second feed pipe 32, and a part thereof is returned to the supply tank 11 through the return pipe 34. The muddy water D returned to the supply tank 11 is vigorously jetted from the center of the lower end of the first feed pipe 31 to the bottom of the supply tank 11 through the nozzle 35 to stir the muddy water D in the tank 11. As a result, the muddy water D separated into the lower sand layer S and the upper water layer W in the tank becomes a slurry. Therefore, water and sand are sucked together from the first feed pipe 31 without being biased only to water.

FIG. 2 shows another embodiment. In this embodiment, the fluid discharged from the pump 31 is separated into a high specific gravity fluid and a low specific gravity fluid using the cyclone 41,
The high specific gravity fluid is sent to the recovery tank 13, and the low specific gravity fluid is returned to the supply tank 11.

The cyclone 41 has an inlet 42, a high specific gravity fluid outlet 43, and a low specific gravity fluid outlet 44. Entrance
42 is connected to the pump discharge port 24. The inlet end of the second feed pipe 32 is connected to the high specific gravity fluid outlet 43. The inlet end of the return pipe 34 is connected to the low specific gravity fluid outlet 43. As shown in this example, the diameter of the return pipe 34 may be reduced and the nozzle 35 may not be used.

As shown in FIG. 4, a feed pipe and a return pipe may be arranged. As shown in FIG. 5, the first feed pipe
A large diameter portion 31a may be provided at the lower end of the 31, and the nozzle 35 may be penetrated therethrough.

As shown in FIG. 6, a recovery tank 12 and a pump 13 may be provided in a vehicle 51. Then, while moving the vehicle 51, muddy water can be sucked up. This is convenient for cleaning Mizogawa and so on. In this case, the first feed pipe 31 may be moved by manual operation as a flexible hose.
Furthermore, if the entire device is equipped on a ship or the like, it can be used for river and sea dredging.

Various fluids can be transferred instead of the muddy water D shown above. When dehydrating a spatula, a dehydrator is installed instead of the collection tank.

[0017]

According to the present invention, there is provided an apparatus for transferring a fluid mixed with solids or the like, in which the equipment cost and the power cost are both inexpensive.

[Brief description of the drawings]

FIG. 1 is an arrangement configuration diagram of a device for transferring a fluid such as a solid matter according to the present invention.

FIG. 2 is a layout diagram corresponding to FIG. 1, showing a modified example of the same device.

FIG. 3 is an enlarged sectional view of a part of FIG.

FIG. 4 is a sectional view showing a modification of the part shown in FIG. 3;

FIG. 5 is a sectional view showing another modification of the portion shown in FIG. 3;

FIG. 6 is an explanatory view showing an example in which the device according to the present invention is mounted on a vehicle.

[Explanation of symbols]

 11 Fluid supply tank 12 Fluid recovery tank 13 Pump 23 Suction port 24 Discharge port 31 First feed pipe 32 Second feed pipe 33 Return pipe

Claims (3)

[Claims] 1. A liquid pump 13 having a suction port 23 and a discharge port 24, a first feed pipeline 31 extending from a transfer fluid reservoir 11 to a suction port 23, and a fluid transfer destination 12 from a discharge port 24.
A second feed pipeline 32 extending up to the second feed pipeline 32 and a return pipeline 34 branched from the second feed pipeline 32 and returned to the transfer fluid reservoir 11 so that the fluid in the transfer fluid reservoir 11 can be stirred. Equipped with solid and other mixed fluid transfer equipment. 2. The second feed pipeline 32 has an inlet 42,
It has a cyclone 41 having a high-specific-gravity fluid outlet 43 and a low-specific-gravity fluid outlet 44, the inlet 42 is connected to the outlet 24, and the high-specific fluid outlet 43 is connected to the fluid transfer destination 12. The fluid transfer device according to claim 1, wherein the low-specific-gravity fluid outlet (44) is communicated with the transfer fluid reservoir (11). 3. A pressure regulating valve is connected to the return pipeline 34.
The device for transferring a fluid containing solid matter or the like according to claim 1 or 2, wherein the device (38) is provided.