Thickener defoaming device

Abstract

The utility model discloses a thickener defoaming device, which relates to the technical field of thickeners and comprises a production water pipe, a ball valve main switch, a fixed water inlet pipe, an annular U-shaped water tank, a connecting water pipe, a pipeline booster pump, a water outlet main pipe, a ball valve switch, a spray pipe and a high-pressure nozzle. The walking support extends in the radial direction of the ore pulp pool and drives around the center of the ore pulp pool, a ball valve main switch is installed on the fixed water inlet pipe, one end of the fixed water inlet pipe is connected with a production water pipe, the other end of the fixed water inlet pipe is suspended above the annular U-shaped water tank, water sprayed by the high-pressure spray head can rotate along with the walking support, and the water spraying amount can be adjusted according to the foam condition. The defoaming efficiency can be improved, water resources can be saved, energy consumption can be reduced, pipeline abrasion and nozzle calcification can be reduced due to the fact that the water quality of a water source is controllable, impurities in defoaming water are few, the service life of a pipeline and the service life of a nozzle are prolonged, and the overhaul frequency of equipment is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of thickeners, in particular to a defoaming device for a thickener. Background Art

[0002] Thickeners, solid-liquid separation equipment based on gravity settling, are widely used in concentrate dewatering. In practice, the flotation process involves combining mineral particles with bubbles, typically generated by flotation agents. When the concentrate slurry enters the thickener, these bubbles rise to the surface, carrying along the mineral particles with them, forming a foam layer. This foam layer poses two major risks: first, it can easily overflow the thickener, leading to metal loss; second, the bubbles can carry a significant amount of beneficiation reagents, hindering concentrate filtration. Therefore, defoaming treatment of the thickener surface is necessary.

[0003] At present, there are two main defoaming methods commonly used in thickeners:

[0004] (1) The alkaline water from the clarified layer of the thickener is extracted by a submersible pump to defoam the surface of the thickener. Although it can save some water resources and has a good defoaming effect, in actual application, due to its structural characteristics, it consumes a lot of electricity, which increases the operating cost. Secondly, the device is prone to calcium deposition, which not only affects the performance but may also cause damage to the pump. In addition, due to the calcium deposition problem, the maintenance frequency is relatively high, which increases maintenance costs and downtime. In actual production, the clarified layer will continue to change, and the alkaline water taken by the submersible pump contains concentrate particles, which will cause continuous scouring of the pipeline, causing wear and rupture of the pipeline. The minerals in the alkaline water will also be adsorbed at the nozzle to form calcium deposition, which will affect its injection effect and thus affect the defoaming efficiency;

[0005] (2) Fixed water pipes are used to spray high-pressure water downward along the axis of the thickener or toward the center of the thickener for defoaming, which has shown a certain treatment effect in actual application. However, this equipment also has some disadvantages in defoaming. First, this equipment usually requires a large amount of water to work, which not only increases the operating cost. Second, the pipeline of the fixed water pipe thickener defoaming device is laid for a long time, and more nozzles need to be installed during actual use, which not only increases the difficulty of installation but also increases the complexity of subsequent maintenance. Due to the structural and design limitations of the equipment, defoaming can only be limited to a local area of the equipment. The foam treatment effect on a large area is not good, and it is often concentrated in a specific area, with relatively low efficiency, which may cause foam accumulation in other areas and affect the treatment effect of the entire system. During the spraying process, the thickener walking bracket is corroded by the production water for a long time, which affects the service life of the walking bracket and may also threaten the stable operation of the thickener.

[0006] In view of this, it is necessary to design an improved thickener defoaming device to solve the above problems. Utility Model Content

[0007] In view of the deficiencies in the prior art, the utility model provides a thickener defoaming device to solve the problems of water waste, low defoaming efficiency, easy calcium deposition, and frequent maintenance during the high-pressure water defoaming process of the thickener.

[0008] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0009] A defoaming device for a thickener comprises a production water pipe, a ball valve master switch, a fixed water inlet pipe, an annular U-shaped water trough, a connecting water pipe, a pipeline booster pump, a water outlet pipe, a ball valve switch, a spray pipe and a high-pressure nozzle. The thickener comprises a cylindrical slurry pool and a traveling bracket. The traveling bracket extends radially along the slurry pool and is transmitted around the center of the slurry pool. The fixed water inlet pipe is equipped with a ball valve master switch, one end of which is connected to the production water pipe and the other end is suspended above the annular U-shaped water trough. The annular U-shaped water trough is fixed to the traveling bracket. One end of the connecting water pipe is connected to the bottom of the annular U-shaped water trough and the other end is connected to the inlet of the pipeline booster pump. The outlet of the pipeline booster pump is connected to the water outlet pipe. The water outlet pipe is laid along the thickener traveling bracket. A plurality of spray pipes extending into the slurry pool are evenly connected to the water outlet pipe. The ball valve switch is installed on the spray pipe. The high-pressure nozzle is connected to the ball valve switch.

[0010] Preferably, the water source of the production water pipe includes production water, return water or other suitable water sources.

[0011] Preferably, the production water pipe is connected to the fixed water inlet pipe by welding, and the fixed water inlet pipe is connected to the main ball valve switch by flange connection.

[0012] Preferably, the annular U-shaped water trough and the connecting water pipe are connected by welding.

[0013] Preferably, the water pipe is connected to the inlet of the pipeline booster pump by a flange connection, and the outlet of the pipeline booster pump is connected to the water outlet main pipe by a flange connection.

[0014] Preferably, the spray pipe is connected to the water outlet main by welding, and the ball valve switch is connected to the spray pipe by threaded connection.

[0015] Preferably, the high-pressure nozzle and the ball valve switch are connected in a threaded manner.

[0016] Preferably, the high-pressure nozzle comprises a straight pipe section and a flat mouth section which are interconnected, wherein the straight pipe section is connected to the ball valve switch, and the flat mouth section is fan-shaped, with the tip connected to the straight pipe section.

[0017] The utility model has the following beneficial effects:

[0018] 1. The water spray of the high-pressure nozzle can rotate together with the walking bracket, and the water spray volume can be adjusted according to the foam situation, which can not only improve the defoaming efficiency, but also save water resources and reduce energy consumption.

[0019] 2. Because the water quality of the source water is controllable and there are few impurities in the defoaming water, it can reduce pipe wear and nozzle calcium deposition, extend the service life of the pipes and nozzles, and reduce the number of equipment maintenance.

[0020] 3. During the spraying process, the thickener travel bracket will not be corroded by the produced water for a long time. Clean water will be led to the travel bracket, and clean water will be provided to the normally operating thickener travel bracket for other purposes. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and to implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings.

[0022] Figure 1 This is a top view of the overall structure of the utility model;

[0023] Figure 2 This is a cross-sectional view of the overall structure of the utility model;

[0024] Figure 3 This is a schematic diagram of the nozzle structure of the present utility model.

[0025] Legend: 1. Production water pipe; 2. Main ball valve switch; 3. Fixed water inlet pipe; 4. Annular U-shaped water trough; 5. Connecting water pipe; 6. Pipeline pressure pump; 7. Water outlet main pipe; 8. Ball valve switch; 9. Spray pipe; 10. High-pressure nozzle; 11. Slurry pool; 12. Traveling support. DETAILED DESCRIPTION

[0026] The embodiments of the present application provide a thickener defoaming device to effectively solve the problems of wasting water resources, low defoaming efficiency, easy calcium deposition, and frequent maintenance during the high-pressure water defoaming process of the thickener. Example

[0027] The overall idea of the technical solution in the embodiments of this application is as follows:

[0028] like Figure 1-3 As shown, in order to solve the problems existing in the prior art, the utility model provides a thickener defoaming device, comprising: a production water pipe 1, a fixed water inlet pipe 3, an annular U-shaped water trough 4, a slurry pool 11, and a traveling bracket 12. The traveling bracket 12 extends radially along the slurry pool 11 and is driven around the center of the slurry pool 11.

[0029] A ball valve master switch 2 is installed on the fixed water inlet pipe 3, one end of which is connected to the production water pipe 1, and the other end is suspended above the annular U-shaped water trough 4. The annular U-shaped water trough 4 is fixed to the traveling bracket 12. One end of the connecting water pipe 5 is connected to the bottom of the annular U-shaped water trough 4, and the other end is connected to the inlet of the pipeline booster pump 6. The outlet of the pipeline booster pump 6 is connected to the water outlet main pipe 7. The water outlet main pipe 7 is laid along the thickener traveling bracket 12. A plurality of spray pipes 9 extending to the slurry pool 11 are evenly connected to the water outlet main pipe 7. The ball valve switch 8 is installed on the spray pipe 9, and the high-pressure nozzle 10 is connected to the ball valve switch 8.

[0030] Working Principle: During use, when staff observe excessive foam on the surface of the thickener slurry pool 11 and need to defoam, they open the main ball valve 2, allowing production water to flow from the production water pipe 1 into the main ball valve 2. Through the main ball valve 2, it flows into the fixed water inlet pipe 3, which is then fed into the annular U-shaped water trough 4. The production water is collected by the annular U-shaped water trough 4 and enters the connecting water pipe 5. The pipeline booster pump 6 is then turned on, pressurizing the production water and feeding it into the outlet pipe 7. Through the outlet pipe 7, the production water is fed into several spray pipes 9, which then flow into the ball valve 8. The ball valve 8 is then turned on, causing the production water to be ejected from the high-pressure nozzle 10. The ejected water falls on the foam layer, breaking up the foam and completing the defoaming process. If staff observe less foam on the surface of the thickener, they can adjust the ball valve 8 so that the high-pressure nozzle 10 adjusts the water output and the number of high-pressure nozzles 10 opened based on the amount of foam.

[0031] Finally, it should be noted that the above embodiments are merely examples for the purpose of illustrating the present invention and are not intended to limit the embodiments. Those skilled in the art will readily appreciate that other variations or modifications based on the above description are possible. It is not necessary and impossible to provide an exhaustive list of all possible embodiments. However, any obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A thickener defoaming device, characterized in that: include: Production water pipe (1), fixed water inlet pipe (3), annular U-shaped water trough (4), slurry pool (11), walking support (12); The traveling bracket (12) extends radially along the slurry pool (11), and the traveling bracket (12) is driven around the center of the slurry pool (11), and a ball valve master switch (2) is installed on the fixed water inlet pipe (3); One end of the fixed water inlet pipe (3) is connected to the production water pipe (1), and the other end is suspended above the annular U-shaped water trough (4); The annular U-shaped water trough (4) is fixed on the traveling bracket (12), the bottom of the annular U-shaped water trough (4) is connected to a connecting water pipe (5), the other end of the connecting water pipe (5) is connected to a pipeline pressure pump (6), the outlet of the pipeline pressure pump (6) is connected to a water outlet pipe (7), the water outlet pipe (7) is laid along the thickener traveling bracket (12), and a plurality of spray pipes (9) extending to the slurry pool (11) are evenly connected to the water outlet pipe (7), the ball valve switch (8) is installed on the spray pipe (9), and the ball valve switch (8) is also connected to a high-pressure nozzle (10).

2. A thickener defoaming device according to claim 1, characterized in that: The production water pipe (1) and the fixed water inlet pipe (3) are connected by welding, and the fixed water inlet pipe (3) and the ball valve main switch (2) are connected by flange connection.

3. A thickener defoaming device according to claim 2, characterized in that: The annular U-shaped water trough (4) and the connecting water pipe (5) are connected by welding.

4. A thickener defoaming device according to claim 1, characterized in that: The connection mode between the water pipe (5) and the inlet of the pipeline booster pump (6) is a flange connection, and the connection mode between the outlet of the pipeline booster pump (6) and the water outlet main pipe (7) is a flange connection.

5. The thickener defoaming device according to claim 1, characterized in that: The spray pipe (9) is connected to the water outlet main pipe (7) by welding.

6. A thickener defoaming device according to claim 5, characterized in that: The ball valve switch (8) is connected to the spray pipe (9) by a threaded connection, and the high-pressure nozzle (10) is connected to the ball valve switch (8) by a threaded connection. The high-pressure nozzle (10) includes a straight pipe section and a flat mouth section that are interconnected, wherein the straight pipe section is connected to the ball valve switch (8), and the flat mouth section is fan-shaped, and the tip is connected to the straight pipe section.

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