Airlift cyclone sand separator

Abstract

This invention discloses an air-lift cyclone sand separator, comprising a sedimentation tank and an air-lift device. The sedimentation tank has a sand-collecting hopper at its lower end, and a hollow shaft extending vertically is placed inside the sedimentation tank. A paddle is fixed to the lower end of the hollow shaft at the upper opening of the sand-collecting hopper. A driving device is fixed to the upper end of the sedimentation tank and connected to the upper end of the hollow shaft. The air-lift device includes an air-lift tank, an air-lift pipe, an air-purge pipe, and a sand-discharge pipe. The air-lift tank is housed within and communicates with the sand-collecting hopper. The air-lift pipe passes through the hollow shaft and communicates with the air-lift tank. The air-purge pipe passes through the hollow shaft and communicates with the sand-collecting hopper. The sand-discharge pipe passes through the hollow shaft and communicates with the air-lift tank. The paddle accelerates the rotation speed of the water flow in the sedimentation tank, allowing the sand to settle better. The settled sand is concentrated in the sand-discharge hopper. The air-lift pipe drives the water flow through the air-lift tank and into the sand-discharge pipe. The air-purge pipe disperses the sand in the sand-collecting hopper, allowing the dispersed sand to enter the sand-discharge pipe with the water flow, resulting in good sand removal efficiency.

Description

Technical Field

[0001] This invention relates to a sand remover, specifically an air-lift cyclone sand remover. Background Technology

[0002] Currently, the treatment method for wastewater containing sand usually involves using a horizontal flow sand remover. However, the following problems often occur during its use: the sand sedimentation effect is poor, and the sand cannot be properly concentrated in the sand discharge hopper; during sand discharge, the sand cannot be dispersed, resulting in the sand not being discharged with the water flow effectively. Summary of the Invention

[0003] In view of the above-mentioned deficiencies of the prior art, the object of the present invention is to provide an airlift cyclone sand separator.

[0004] The technical solution of the present invention is: an air-lift cyclone sand remover, including a sedimentation tank and an air-lift device. The lower end of the sedimentation tank has a sand collection hopper. The sedimentation tank contains a hollow shaft extending vertically. The lower end of the hollow shaft is fixed with a blade located at the upper opening of the sand collection hopper. The upper end of the sedimentation tank is fixed with a driving device, which is connected to the upper end of the hollow shaft.

[0005] The air-lift device includes an air-lift tank, an air-lift pipe, an air-purge pipe, and a sand-discharge pipe. The air-lift tank is housed in and connected to the sand-collecting hopper. The air-lift pipe extends vertically through a hollow shaft and its lower end extends into and connects to the air-lift tank. The air-purge pipe extends vertically through a hollow shaft and its lower end extends into and connects to the sand-collecting hopper. The sand-discharge pipe extends vertically through a hollow shaft and connects to the air-lift tank.

[0006] Furthermore, the lower end of the air-lift pipe is fixed to the air-lift tank, and the upper end of the air-lift pipe protrudes outside the sedimentation tank and is connected to a blower.

[0007] Furthermore, the lower end of the sand discharge pipe is fixed to the air stripping tank, while the upper end of the sand discharge pipe protrudes outside the sedimentation tank.

[0008] Furthermore, the gas-lifting tank includes a first tank body, a second tank body, and a third tank body;

[0009] The first tank has a top plate and a bottom plate at its upper and lower ends, respectively. The lower end of the air lifting pipe is fixed to the top plate and extends into the first tank.

[0010] The second tank is fixed to the top plate, the upper end of the second tank protrudes outside the first tank, and the lower end of the sand discharge pipe is fixed to the upper end of the second tank and extends into the second tank.

[0011] The third tank is fixed to the base plate. The upper end of the third tank extends into the second tank, and there is a gap between the outer wall of the third tank and the inner wall of the second tank for water to flow through. The lower end of the third tank has a downward-facing through hole that is connected to the sand collection hopper.

[0012] Furthermore, the lower end of the air-flushing pipe passes through the air-lifting tank, while the upper end of the air-flushing pipe protrudes outside the sedimentation tank and is connected to a blower.

[0013] The beneficial effects of using the air-lift cyclone sand separator provided by this invention are as follows: the blades can accelerate the rotation speed of the water flow in the sedimentation tank, increase the centrifugal force, and enable the sand to settle better. The blades also help to concentrate the settled sand into the sand discharge hopper. The air-lift pipe drives the water flow through the gas tank and into the sand discharge pipe. The air-pump pipe can blow away the sand in the sand collection hopper, so that the blown sand can enter the sand discharge pipe with the water flow, resulting in a good sand discharge effect. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0015] Figure 2 This is a top view of the present invention;

[0016] Figure 3 This is a top view schematic diagram of the air-lift device of the present invention;

[0017] Figure 4 for Figure 3 Cross-sectional view along the AA direction;

[0018] Figure 5 for Figure 3 Cross-sectional view along the BB direction.

[0019] As shown in the figure: 1—Sedimentation tank, 11—Sand collection hopper, 2—Hollow shaft, 3—Paddle, 4—Drive device, 5—Air lift tank, 51—First tank body, 511—Top plate, 512—Bottom plate, 52—Second tank body, 53—Third tank body, 531—Through hole, 6—Air lift pipe, 7—Air flushing pipe, 8—Sand discharge pipe. Detailed Implementation

[0020] To provide a more intuitive and complete understanding of the technical solution of this invention, the following non-limiting features are described in conjunction with the accompanying drawings:

[0021] like Figure 1 — Figure 5As shown, the air-lift cyclone sand remover includes a sedimentation tank 1 and an air-lift device. The lower end of the sedimentation tank 1 has a sand collection hopper 11. The sedimentation tank 1 contains a hollow shaft 2 extending vertically. The lower end of the hollow shaft 2 is fixed with a blade 3 located at the upper opening of the sand collection hopper 11. The upper end of the sedimentation tank 1 is fixed with a drive device 4, preferably a motor, which is connected to the upper end of the hollow shaft 2. The air-lift device includes an air-lift tank 5, an air-lift pipe 6, an air-purge pipe 7, and a sand discharge pipe 8. The air-lift tank 5 is housed in the sand collection hopper 11 and communicates with it. The air-lift pipe 6 extends vertically through the hollow shaft 2 and its lower end extends into the air-lift tank 5 and communicates with it. The air-purge pipe 7 extends vertically through the hollow shaft 2 and its lower end extends into the sand collection hopper 11 and communicates with it. The sand discharge pipe 8 extends vertically through the hollow shaft 2 and communicates with the air-lift tank 5.

[0022] like Figure 1 and Figure 4 As shown, the lower end of the air-lift pipe 6 is fixed to the air-lift tank 5, and the upper end of the air-lift pipe 6 protrudes outside the sedimentation tank 1 and is connected to a blower (not shown in the figure). Figure 1 ,like Figure 4 and Figure 5 As shown, the lower end of the sand discharge pipe 8 is fixed to the air-lift tank 5, and the upper end of the sand discharge pipe 8 protrudes outside the sedimentation tank 1. When the blower is working, air can enter the air-lift tank 5 from the air-lift pipe 6, thereby driving the water in the air-lift tank 5 to flow to the sand discharge pipe 8.

[0023] like Figure 1 and Figure 5 As shown, the lower end of the air-pumping pipe 7 passes through the air-lifting tank 5, and the upper end of the air-pumping pipe 7 protrudes outside the sedimentation tank 1 and is connected to a blower (not shown in the figure).

[0024] like Figure 4 As shown, the air-lift tank 5 includes a first tank body 51, a second tank body 52, and a third tank body 53. The third tank body 53 is vertically continuous, and the second tank body 52 has an opening at its lower end. The first tank body 51 has a top plate 511 and a bottom plate 512 at its upper and lower ends, respectively. The lower end of the air-lift pipe 6 is fixed to the top plate 511 and extends into the first tank body 51. The middle part of the second tank body 52 is fixed to the top plate 511, and the upper end of the second tank body 52 protrudes outside the first tank body 51. The lower end of the sand discharge pipe 8 is fixed to the upper end of the second tank body 52 and extends into the second tank body 52. ​​The lower end of the third tank body 53 is fixed to the bottom plate 512, and the upper end of the third tank body 53 extends into the second tank body 52. ​​A gap for water to flow through is left between the outer wall of the third tank body 53 and the inner wall of the second tank body 52. ​​The lower end of the third tank body 53 has a downward-facing through hole 531, which is connected to the sand collection hopper 11. During operation, air enters the first tank 51 through the air lifting pipe 6. Water in the first tank 51 enters the second tank 52 through the gap between the second tank 52 and the third tank 53. Water in the sand collection hopper 11 enters the second tank 52 through the third tank 53. Finally, all the water enters the sand discharge pipe 8.

[0025] During operation, the blade 3 can accelerate the rotation speed of the water flow in the sedimentation tank, increase the centrifugal force, and enable the sand to settle better. The blade 3 also helps the settled sand to be better concentrated in the sand discharge hopper. The air lift pipe 6 drives the water flow through the gas tank and into the sand discharge pipe 8. The air jet pipe 7 can blow away the sand in the sand collection hopper 11, so that the blown sand can enter the sand discharge pipe 8 with the water flow.

[0026] Of course, the above are only preferred embodiments of the present invention and do not limit the patent scope of the present invention. Any simple modifications and equivalent structural changes made based on the contents of the present invention specification and drawings should also be included within the patent protection scope of the present invention.

Claims

1. An air-lift cyclone sand separator, characterized in that: It includes a sedimentation tank and an air-lift device. The sedimentation tank has a sand collection hopper at its lower end. A hollow shaft extending vertically is placed inside the sedimentation tank. A paddle is fixed at the lower end of the hollow shaft at the upper opening of the sand collection hopper. A drive device is fixed at the upper end of the sedimentation tank and is connected to the upper end of the hollow shaft. The air-lift device includes an air-lift tank, an air-lift pipe, an air-purge pipe, and a sand-discharge pipe. The air-lift tank is housed in and connected to the sand-collecting hopper. The air-lift pipe extends vertically through the hollow shaft and its lower end extends into the air-lift tank and is connected to the air-lift tank. The air-purge pipe extends vertically through the hollow shaft and its lower end extends into the sand-collecting hopper and is connected to the sand-collecting hopper. The sand-discharge pipe extends vertically through the hollow shaft and is connected to the air-lift tank. The lower end of the air-lift pipe is fixed to the air-lift tank, and the upper end of the air-lift pipe protrudes outside the sedimentation tank and is connected to a blower. The lower end of the sand discharge pipe is fixed to the air stripping tank, and the upper end of the sand discharge pipe is exposed outside the sedimentation tank. The gas lifting tank includes a first tank body, a second tank body, and a third tank body; The first tank has a top plate and a bottom plate at its upper and lower ends, respectively. The lower end of the air lifting pipe is fixed to the top plate and extends into the first tank. The second tank is fixed to the top plate, the upper end of the second tank protrudes outside the first tank, and the lower end of the sand discharge pipe is fixed to the upper end of the second tank and extends into the second tank. The third tank is fixed on the base plate. The upper end of the third tank extends into the second tank. A gap is left between the outer wall of the third tank and the inner wall of the second tank for water to flow through. The lower end of the third tank has a downward-facing through hole that is connected to the sand collection hopper. The lower end of the air-flushing pipe passes through the air-lifting tank, and the upper end of the air-flushing pipe protrudes outside the sedimentation tank and is connected to a blower.

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