Anti-blocking device for water pumping pipeline of sedimentation tank of coal water treatment system

Abstract

The invention provides a coal water treatment system sedimentation tank water pumping pipeline anti-blocking device which comprises a sedimentation tank, an inlet pipe arranged at one end of the sedimentation tank, a water pump arranged on the inlet pipe, a fixing piece arranged at the edge of the sedimentation tank and used for fixing the inlet pipe, a hose arranged at one end of the inlet pipe towards the inside of the sedimentation tank, and a floating piece communicated with the tail end of the hose, a surge bin and a floating bin are sequentially arranged in the floating part from top to bottom in a hollow mode, the surge bin and the floating bin are arranged in a separated mode, the hose communicates with the surge bin, and a surge port is formed in the position, above a hose communicating port, of the side wall of the surge bin. The floating piece drives the hose to always float on the wastewater layer of the sedimentation tank, the situation that a pipeline opening makes contact with a mud layer and consequently a pipeline is blocked is avoided, water needs to be injected into the inlet pipe and the hose before water pumping, when water exists in the hose, the hose will drive the floating piece to descend, and after the floating piece descends, wastewater enters the inrush flow bin from the inrush flow opening; and then the wastewater enters the hose, so that the water suction pump can pump the wastewater out of the sedimentation tank.

Description

Technical Field

[0001] This invention relates to the field of slag removal machines for thermal power plants, and more particularly to an anti-clogging device for the water pumping pipeline of a sedimentation tank in a coal-water treatment system. Background Technology

[0002] In coal-water treatment systems, coal-water is transported to a sedimentation tank for sedimentation to separate the coal and water. After transporting the coal-water to the sedimentation tank, wastewater needs to be pumped out. However, pipe blockages frequently occur during this process. When equipment failure occurs, the inlet pipe needs frequent lifting to clear the blockage of coal sludge. Depending on the on-site coal-water conditions, the inlet pipe may need to be cut, welded, or replaced. Furthermore, during coal-water transport, the pipeline extends deep into the sedimentation tank, and the boundary between the sludge and water changes constantly with equipment operation. The original booster pump inlet pipe used a fixed design, with a fixed depth and position, which is unsuitable for on-site working conditions. This can lead to coal sludge being sucked into the pump casing or the pump impeller running dry, causing malfunctions. Moreover, because the boundary between sludge and water in the sedimentation tank cannot be observed, multiple booster pumps can simultaneously suck in coal sludge, causing equipment damage and system failure. Summary of the Invention

[0003] The present invention aims to at least partially solve one of the technical problems in the related art.

[0004] To achieve the above objectives, this invention proposes an anti-clogging device for the pumping pipe of a sedimentation tank in a coal-water treatment system. The device includes a sedimentation tank, an inlet pipe at one end of which is equipped with a pump. A fixing element for securing the inlet is located at the edge of the sedimentation tank. A flexible hose is connected to the end of the inlet pipe facing inwards from the sedimentation tank. A floating element is connected to the end of the flexible hose. A flow chamber and a floating chamber are hollowly arranged vertically within the floating element. The flow chamber and the floating chamber are separated. The flexible hose is connected to the flow chamber, and a flow outlet is located on the side wall of the flow chamber above the flexible hose connection.

[0005] This invention incorporates a flexible hose and a floating component. The floating component keeps the hose afloat in the wastewater layer of the sedimentation tank, thus preventing the pipe from coming into contact with the mud layer and causing blockage. Before the pump draws water, water needs to be injected into the inlet pipe and the flexible hose. When there is water in the hose, it will cause the floating component to descend. After the floating component descends, the wastewater enters the flow chamber from the flow outlet and then enters the flexible hose, allowing the pump to remove the wastewater from the sedimentation tank.

[0006] Optionally, the length of the inlet pipe facing the sedimentation tank can be set in the range of 2000-4000 mm.

[0007] Furthermore, the inlet pipe is bent at one end toward the flexible tube and connected to a buffer tube. The angle between the buffer tube and the inlet pipe is set to 135°, and the buffer tube and the inlet pipe are integrally connected. The flexible tube is connected to the buffer tube.

[0008] Furthermore, the buffer tube is threadedly connected to the hose, and the outer wall of the buffer tube is provided with external threads, while the inner wall of the hose is provided with internal threads.

[0009] Furthermore, the cross-section of the floating chamber is configured as an inverted isosceles trapezoid, and the cross-section of the surging chamber is configured as a shape that gradually narrows symmetrically along the direction away from the floating chamber.

[0010] Furthermore, the floating chamber provides buoyancy no less than the weight of water at a depth of 200mm within the flow chamber.

[0011] Furthermore, the height difference between the flow outlet and the connection between the hose and the flow chamber is not less than 200mm, and multiple flow outlets are provided, with a distance of not less than 50mm between any two adjacent flow outlets.

[0012] Furthermore, the side wall of the flow chamber is provided with multiple spare ports at a position higher than the flow outlet.

[0013] Furthermore, the hose is configured as a rubber hose with an internal steel wire skeleton.

[0014] Furthermore, a flow detection device and a first alarm device are installed on the inlet pipe, and the flow detection device and the first alarm device are electrically connected.

[0015] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein:

[0017] Figure 1 This is a schematic diagram of the overall structure of an anti-clogging device for a sedimentation tank pumping pipeline in a coal-water treatment system according to the present invention.

[0018] Figure 2 This is a schematic diagram of the floating component structure of an anti-clogging device for a sedimentation tank pumping pipeline in a coal-water treatment system according to the present invention.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1. Sedimentation tank; 11. Fixing components; 2. Inlet pipe; 21. Water pump; 22. Buffer pipe; 23. Flow detection device; 24. First alarm device; 3. Hose; 4. Floating component; 41. Flow chamber; 42. Floating chamber; 43. Flow outlet; 44. Spare outlet; 5. Counterweight; 6. Pressure sensor; 61. Second alarm device. Detailed Implementation

[0021] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0022] This invention proposes an anti-clogging device for the water pumping pipeline of the sedimentation tank in a coal-water treatment system, as described below. Figures 1 to 2 To elaborate in detail.

[0023] A device for preventing blockage of a sedimentation tank pumping pipe in a coal-water treatment system includes a sedimentation tank 1. An inlet pipe 2 is installed at one end of the sedimentation tank 1, and a pump 21 is installed on the inlet pipe 2. A fixing member 11 for fixing the inlet valve is provided at the edge of the sedimentation tank 1. A flexible hose 3 is installed at the end of the inlet pipe 2 facing inwards from the sedimentation tank 1. A floating member 4 is connected to the end of the flexible hose 3. A flow chamber 41 and a floating chamber 42 are hollowly arranged vertically within the floating member 4. The flow chamber 41 and the floating chamber 42 are separated. The flexible hose 3 is connected to the flow chamber 41, and a flow outlet 43 is provided on the side wall of the flow chamber 41 above the connection port of the flexible hose 3.

[0024] This invention incorporates a flexible hose 3 and a floating element 4. The floating element 4 keeps the flexible hose 3 afloat in the wastewater layer of the sedimentation tank 1, thus preventing the pipe opening from coming into contact with the mud layer and causing blockage. Before the water pump 21 pumps water, water needs to be injected into the inlet pipe 2 and the flexible hose 3. When there is water in the flexible hose 3, the flexible hose 3 will cause the floating element 4 to descend. After the floating element 4 descends, the wastewater enters the flow chamber 41 from the flow outlet 43 and then enters the flexible hose 3, thereby enabling the water pump 21 to pump the wastewater out of the sedimentation tank 1.

[0025] In some embodiments, the length of the inlet pipe 2 facing the sedimentation tank 1 is set in the range of 2000-4000 mm, and is preferably 2000 mm in one embodiment. This avoids the situation where the end of the inlet pipe 2 contacts the coal seam due to the inlet pipe 2 extending too far into the sedimentation tank 1, and also avoids the situation where the hose 3 bends due to contact with the mud layer due to the inlet pipe 2 extending too far into the water layer, thereby causing blockage in the hose 3.

[0026] In some embodiments, the inlet pipe 2 is bent at the end facing the hose 3 and connected to a buffer pipe 22. The angle between the buffer pipe 22 and the inlet pipe 2 is set to 135°, and the buffer pipe 22 is integrally connected to the inlet pipe 2. The hose 3 is connected to the buffer pipe 22. The buffer pipe 22 reduces the direct pressure of the liquid in the inlet pipe 2 on the hose 3, thereby improving the service life of the hose 3.

[0027] In some embodiments, the buffer tube 22 and the hose 3 are threadedly connected, with external threads on the outer wall of the buffer tube 22 and internal threads on the inner wall of the hose 3. The threaded connection facilitates timely replacement of damaged hoses 3 by workers, and also increases the friction between the hose 3 and the buffer tube 22, thereby making the connection between the buffer tube 22 and the hose 3 more secure.

[0028] In some embodiments, the cross-section of the floating tank 42 is set as an inverted isosceles trapezoid; the inverted isosceles trapezoid cross-section can make the floating tank 42 obtain greater buoyancy, and the inverted isosceles trapezoid cross-section can make it easier to maintain stability when waves appear in the wastewater layer.

[0029] In order to keep the center of gravity of the floating component 4 low and avoid capsizing, the cross-section of the surging chamber 41 is set to a shape that gradually narrows symmetrically along the direction away from the floating chamber 42, such as an isosceles triangle or an isosceles trapezoid.

[0030] In some embodiments, the floating chamber 42 provides buoyancy not less than the weight of the water at a depth of 200 mm in the flow chamber 41. This allows the floating chamber 42 to provide sufficient buoyancy so that even when the flow chamber 41 is fully loaded, it can still carry the floating component 4 to float in the wastewater layer, preventing the floating component 4 from sinking to the bottom and contacting the mud layer.

[0031] In some embodiments, the height difference between the inlet 43 and the connection between the hose 3 and the inlet 41 is not less than 200mm, thereby ensuring that sufficient water can flow from the inlet 43 into the inlet 41, and that the interface between the hose 3 and the inlet 41 can be completely submerged, thus ensuring normal pumping. Furthermore, multiple inlet ports 43 are provided, with a spacing of not less than 50mm between any two adjacent inlet ports 43. The arrangement of multiple inlet ports 43 ensures that the flow rate of wastewater flowing into the inlet 41 meets the extraction flow rate of the hose 3.

[0032] In some embodiments, a plurality of spare ports 44 are provided on the side wall of the flow chamber 41 at a position higher than the flow outlet 43. The spare ports are provided to facilitate the replenishment of the wastewater flow into the flow chamber 41, and to expel excess air from the flow chamber 41, so that the flow chamber 41 can be stably submerged in the wastewater layer without contacting the mud layer.

[0033] In some embodiments, the hose 3 is configured as a rubber hose 3 with an internal steel wire skeleton. The steel wire skeleton can increase the strength of the hose 3, enabling the hose 3 to better withstand the impact generated by the rapid flow of wastewater inside the hose.

[0034] In some embodiments, a flow detection device 23 and a first alarm device are installed on the inlet pipe 2, and the flow detection device 23 and the first alarm device are electrically connected. The flow detection device 23 can monitor the flow rate of wastewater extracted from the inlet pipe 2 in real time. When the wastewater flow rate in the inlet pipe decreases, it indicates that there may be a blockage in the hose 3, the float 4, or any part of the inlet pipe 2, thereby issuing an alarm in time to allow staff to carry out troubleshooting.

[0035] In some embodiments, a counterweight 5 is suspended on the bottom wall of the float 4 to prevent the float 4 from overturning due to the buoyancy provided by the float 42 and the pulling action of the hose 3 when the float 4 is floating in the wastewater layer, so that the float 4 always floats and sinks in the wastewater layer with the float 42 below and the flow chamber 41 above.

[0036] In some embodiments, multiple pressure sensors 6 are provided on the bottom wall of the float 4. The pressure sensors 6 are wirelessly or wiredly connected to a second alarm device 61. The second alarm device 61 is located outside the sedimentation tank 1. When the float 4 comes into contact with the mud layer at any angle, the pressure sensor 6 will send a signal. When the second alarm device receives the signal, it will sound an alarm to remind the staff to conduct routine inspections to see if there is a situation where the mud layer is too high or the float 4 has failed.

[0037] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0039] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0040] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0041] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0042] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A coal water treatment system sedimentation tank pumping pipe anti-blocking device, comprising a sedimentation tank, one end of the sedimentation tank is provided with an inlet pipe, a water pumping pump is arranged on the inlet pipe, and a fixing piece for fixing the inlet pipe is arranged at the edge of the sedimentation tank, characterized in that, The inlet pipe is provided with a flexible hose at one end facing the sedimentation tank. A floating component is connected to the end of the flexible hose. A flow chamber and a floating chamber are hollowly arranged inside the floating component, one above the other. The flow chamber and the floating chamber are separated. The flexible hose is connected to the flow chamber. A flow outlet is provided on the side wall of the flow chamber above the flexible hose connection.

2. The anti-blocking device for the water pumping pipeline of the sedimentation tank of a coal water treatment system according to claim 1, characterized in that, The length of the inlet pipe facing the sedimentation tank is set within the range of 2000-4000mm.

3. The anti-blocking device for the water pumping pipeline of the sedimentation tank of a coal water treatment system according to claim 2, characterized in that, The inlet pipe is bent at one end toward the flexible tube and connected to a buffer tube. The angle between the buffer tube and the inlet pipe is set to 135°, and the buffer tube and the inlet pipe are integrally connected. The flexible tube is connected to the buffer tube.

4. The anti-blocking device for the water pumping pipeline of the sedimentation tank of a coal water treatment system according to claim 3, characterized in that, The buffer tube is threadedly connected to the hose, and the outer wall of the buffer tube is provided with external threads, while the inner wall of the hose is provided with internal threads.

5. The anti-blocking device for the water pumping pipeline of the sedimentation tank of a coal water treatment system according to claim 1, characterized in that, The cross-section of the floating chamber is set as an inverted isosceles trapezoid, and the cross-section of the surging chamber is set as a shape that gradually narrows symmetrically along the direction away from the floating chamber.

6. The anti-blocking device for the water pumping pipeline of the sedimentation tank of a coal water treatment system according to claim 5, characterized in that, The floating chamber provides buoyancy no less than the weight of water at a depth of 200mm within the flow chamber.

7. The anti-blocking device for the water pumping pipeline of the sedimentation tank of a coal water treatment system according to claim 5, characterized in that, The height difference between the flow outlet and the connection between the hose and the flow chamber is not less than 200mm, and there are multiple flow outlets, with a distance of not less than 50mm between any two adjacent flow outlets.

8. The anti-clogging device for the sedimentation tank pumping pipeline of a coal-water treatment system as described in claim 7, characterized in that, The side wall of the flow chamber is equipped with multiple spare ports at a position higher than the flow outlet.

9. The anti-clogging device for the sedimentation tank pumping pipeline of a coal-water treatment system as described in claim 1, characterized in that, The hose is configured as a rubber hose with an internal steel wire skeleton.

10. The anti-clogging device for the sedimentation tank pumping pipeline of a coal-water treatment system as described in claim 1, characterized in that, The inlet pipe is equipped with a flow detection device and a first alarm device, and the flow detection device and the first alarm device are electrically connected.

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