Filtering circulation tank for brine refining

Abstract

The utility model relates to a filtering circulation tank for brine refining, which comprises a filtering tank body, a filtering plate and a stirring mechanism, and is technically characterized in that a lifting cylinder and a water conduit are arranged on the upper surface of the filtering plate, one end of the water conduit is connected with an elastic telescopic pipe, and the lower end of the elastic telescopic pipe is connected with a scum trapping port through a lower flange plate group; the other end of the water diversion pipe penetrates through the filtering tank body to be connected with a first diversion pipe, the outlet side of the first diversion pipe is connected with a filtering box, filtering cavities corresponding to two outlets of the first diversion pipe in a one-to-one mode are formed in the filtering box, the outlet sides of the two filtering cavities are connected with an inlet of a first collecting pipe, and an outlet of the first collecting pipe is connected with an inlet of a lifting pump. An outlet of the lifting pump is communicated with the lower portion of the filtering tank body through a first backflow pipeline, a clamping plate is fixed to the edge of the lower flange plate set, and a cylinder rod of the lifting cylinder penetrates through the filtering plate to be fixedly connected with the clamping plate. According to the utility model, the filtering effect is ensured, the production continuity is ensured, and the production efficiency is obviously improved.

Description

Technical Field

[0001] The utility model relates to the technical field of brine purification equipment, and particularly relates to a filtering circulation tank for brine purification. Background Art

[0002] Brine purification is an important production link in the salt industry, aiming to remove impurities such as calcium, magnesium and mud in crude brine. However, during the process of purifying brine, there is often a problem that the solid suspension exceeds the standard after adding a refining agent for reaction, and a filtering device is needed to filter out the scum.

[0003] For example, CN 220877841 U discloses an integrated treatment equipment for refined brine, which includes a box body filter plate, a filter pocket, a sliding component and a stirring component. A filter plate and a filter pocket are arranged in the box body, two filter pockets are arranged on the side wall of the box body, and the sliding component is arranged between the box body and the filter pocket for taking out the filter pocket. The sliding component includes a T-shaped chute and a T-shaped slider. The T-shaped chute is opened on the side wall of the box body, and the T-shaped slider is slidably connected in the T-shaped chute. A corrugated stirring piece is arranged on the outer surface of the conical shaft, and a driving part is arranged at the bottom of the box body. The output end of the driving part is connected to the bottom of the conical shaft. This equipment aims to filter large particle suspensions in brine through the filter plate and the filter pocket to remove the scum of the brine. However, there are the following problems in the use process: the filter pocket needs to be cleaned during downtime, which is not conducive to continuous production and reduces production efficiency. Content of the Utility Model

[0004] The purpose of the utility model is to provide a filtering circulation tank for brine purification with reasonable structure and reliable use to solve the above problems. On the one hand, it ensures the filtering effect, and on the other hand, it ensures the continuity of production and significantly improves production efficiency.

[0005] The technical solution of the utility model is as follows:

[0006] A filtering and circulating tank for brine refining, comprising a filtering tank body, a filtering plate built in the top of the filtering tank body, and a stirring mechanism located below the filtering plate. The technical key points are as follows: on one side of the upper surface of the filtering plate, a lifting cylinder and a water inlet pipe are fixed. One end of the water inlet pipe passes through the filtering plate and is connected to an elastic telescopic pipe by an upper flange group. The lower end of the elastic telescopic pipe is connected to a scum collection port by a lower flange group. The other end of the water inlet pipe passes through the side wall of the filtering tank body and is connected to a first shunt pipe. The outlet side of the first shunt pipe is connected to a filtering box. In the filtering box, there are filtering cavities corresponding one by one to the two outlets of the first shunt pipe. The outlet sides of the two filtering cavities are connected to the inlet of a first confluence pipe. The outlet of the first confluence pipe is connected to the inlet of a lifting pump. The outlet of the lifting pump is communicated with the lower part of the filtering tank body by a first return pipeline. The edge of the lower flange group is fixed with a clamping plate. The piston rod of the lifting cylinder passes through the filtering plate and is fixedly connected to the clamping plate. The top of the filtering tank body is provided with a feed pipe, the bottom is provided with a discharge pipe, and the lower side is provided with a circulating pipe. A second return pipeline is arranged between the circulating pipe and the feed pipe, and a circulating pump is arranged on the second return pipeline.

[0007] For the above-mentioned filtering and circulating tank for brine refining, first control valves are respectively arranged on the shunt branches of the first shunt pipe. On the pipe section between the first control valve and the outlet of the first shunt pipe, there are side openings, and the two side openings are connected to the outlets of a second shunt pipe. The inlet of the second shunt pipe is used to connect a flushing pipeline. Second control valves are respectively arranged on the shunt branches of the second shunt pipe.

[0008] For the above-mentioned filtering and circulating tank for brine refining, an inclined filter screen is arranged in the filtering cavity, and the filtering cavity is separated into an upper water inlet cavity and a lower water outlet cavity by the inclined filter screen. The upper water inlet cavity is communicated with the outlet of the first shunt pipe, and the lower water outlet cavity is communicated with the inlet of the first confluence pipe. Third control valves are respectively arranged on the two confluence branches of the first confluence pipe.

[0009] For the above-mentioned filtering and circulating tank for brine refining, the bottom of the filtering box is provided with a second confluence pipe respectively communicated with the upper water inlet cavity and the lower water outlet cavity. The outlet of the second confluence pipe is used to connect a cleaning pipeline. Fourth control valves are respectively arranged on the two confluence branches of the second confluence pipe.

[0010] For the above-mentioned filtering and circulating tank for brine refining, a liquid level gauge for detecting the liquid level height is arranged on the upper part of the filtering tank body.

[0011] The beneficial effects of the present utility model are:

[0012] 1. The lifting cylinder is used to drive the scum collection port to descend to the liquid level position. Then, the lift pump is used to suck the scum on the liquid surface into the filtration chamber of the filter box. After filtration, the liquid part flows back to the filter tank body. When the scum in one filtration chamber is excessive, another filtration chamber is used for filtration operation. At the same time, the filtration chamber can be cleaned outside the filter tank body without affecting the production process of refined brine. On the one hand, the filtration effect is ensured, and on the other hand, the production continuity is guaranteed, significantly improving the production efficiency.

[0013] 2. The height of the scum collection port can be adjusted by the lifting cylinder, so as to adapt to liquid surfaces at different heights, with flexible and reliable use. Description of the Drawings

[0014] Figure 1 is a schematic structural view of the present utility model;

[0015] Figure 2 is a schematic structural view of the side of the filter box of the present utility model.

[0016] In the figure: 1. Lift pump, 2. First confluence pipe, 3. Second shunt pipe, 4. Third control valve, 5. Second control valve, 6. First control valve, 7. First shunt pipe, 8. Water inlet pipe, 9. Upper flange group, 10. Lifting cylinder, 11. Feed pipe, 12. Filter plate, 13. Clamping plate, 14. Liquid level gauge, 15. Lower flange group, 16. Scum collection port, 17. Stirring mechanism, 18. Filter tank body, 19. Second return pipeline, 20. Circulation pump, 21. Circulation pipe, 22. Discharge pipe, 23. Elastic expansion pipe, 24. Second confluence pipe, 25. Fourth control valve, 26. First return pipeline, 27. Filter net, 28. Filter box. Detailed Embodiment

[0017] The present utility model will be described in detail according to the accompanying drawings of the specification.

[0018] As Figure 1 、 Figure 2 shown, the filtration and circulation tank for brine refining includes a filter tank body 18, a filter plate 12 built in the top of the filter tank body 18, and a stirring mechanism 17 located below the filter plate 12.

[0019] Among them, one side of the upper surface of the filter plate 12 is fixedly provided with a lifting cylinder 10 and a water inlet pipe 8. One end of the water inlet pipe 8 passes through the filter plate 12 and is connected to an elastic expansion pipe 23 by using an upper flange group 9. The lower end of the elastic expansion pipe 23 is connected to a scum collection port 16 by using a lower flange group 15. The edge of the lower flange group 15 is fixedly provided with a clamping plate 13. The cylinder rod of the lifting cylinder 10 passes through the filter plate 12 and is fixedly connected to the clamping plate 13. In this embodiment, a liquid level gauge 14 for detecting the liquid level height is provided on the upper part of the filter tank body 18. The feedback signal of the liquid level gauge 14 is the starting basis of the lifting cylinder 10.

[0020] The other end of the water inlet pipe 8 passes through the side wall of the filter tank body 18 and is connected to the first shunt pipe 7. The outlet side of the first shunt pipe 7 is connected to the filter box 28. The filter box 28 is provided with filter cavities corresponding one by one to the two outlets of the first shunt pipe 7. The outlet sides of the two filter cavities are connected to the inlet of the first confluence pipe 2. The outlet of the first confluence pipe 2 is connected to the inlet of the lift pump 1. The outlet of the lift pump 1 is communicated with the lower part of the filter tank body 18 by using the first return pipeline 26. In this embodiment, first control valves 6 are respectively arranged on the shunt branches of the first shunt pipe 7. Side openings are arranged on the pipe section between the first control valve 6 and the outlet of the first shunt pipe 7. The two side openings are connected to the outlets of the second shunt pipe 3. The inlet of the second shunt pipe 3 is used for connecting a flushing pipeline. Second control valves 5 are respectively arranged on the shunt branches of the second shunt pipe 3. An inclined filter screen 27 is arranged in the filter cavity and divides it into an upper water inlet cavity and a lower water outlet cavity by using the inclined filter screen 27. The upper water inlet cavity is communicated with the outlet of the first shunt pipe 7. The lower water outlet cavity is communicated with the inlet of the first confluence pipe 2. Third control valves 4 are respectively arranged on the two confluence branches of the first confluence pipe 2. The bottom of the filter box 28 is provided with a second confluence pipe 24 which is respectively communicated with the upper water inlet cavity and the lower water outlet cavity. The outlet of the second confluence pipe 24 is used for connecting a cleaning pipeline. Fourth control valves 25 are respectively arranged on the two confluence branches of the second confluence pipe 24.

[0021] The top of the filter tank body 18 is provided with a feed pipe 11, the bottom is provided with a discharge pipe 22, and a circulation pipe 21 is provided on the lower side. A second return pipeline 19 is arranged between the circulation pipe 21 and the feed pipe 11, and a circulation pump 20 is arranged on the second return pipeline 19.

[0022] Working principle:

[0023] During normal operation, brine and refining agent are fed into the filter tank body 18 through the feed pipe 11 and react under the action of the stirring mechanism 17 to generate refined brine. During this process, the scum generated rises to the liquid level. According to the feedback signal of the liquid level gauge 14, the cylinder rod of the lifting cylinder 10 moves downward, thereby driving the clamping plate 13, the lower flange group 15 and the scum collection port 16 to move downward. After reaching the liquid level position, the lift pump 1 is started. Under the action of negative pressure, the scum and part of the brine enter a filter cavity of the filter box 28 through the water inlet pipe 8 and a shunt branch of the first shunt pipe 7. After being filtered by the filter screen 27, the purified brine enters the lift pump 1 through a confluence branch of the first confluence pipe 2, and then returns to the filter tank body 18 through the lift pump 1 and the first return pipeline 26.

[0024] When the filter chamber needs to be cleaned, another filter chamber is used for operation. At the same time, flushing water is injected into the filter chamber to be cleaned through a shunt branch of the second shunt pipe 3, and the cleaning liquid is then collected by the second confluence pipe 24 and sent into the cleaning pipeline. The cleaning and filtering operations of the present utility model are carried out simultaneously without affecting the production continuity.

[0025] The embodiments of the present utility model have been described in detail above, but the content described is only the preferred embodiment of the present utility model and cannot be considered as limiting the implementation scope of the present utility model. All equal changes and improvements made within the scope of the creation of the present utility model shall still fall within the scope covered by the present utility model.

Claims

1. A filtering circulation tank for brine refining, comprising a filtering tank body, a filtering plate built into the top of the filtering tank body, and a stirring mechanism located below the filtering plate, characterized in that: A lifting cylinder and a water diversion pipe are fixed on one side of the upper surface of the filter plate, one end of the water diversion pipe passes through the filter plate and is connected to an elastic telescopic pipe by an upper flange set, the lower end of the elastic telescopic pipe is connected to a scum collecting port by a lower flange set, the other end of the water diversion pipe passes through the side wall of the filter tank body and is connected to a first shunt pipe, the outlet side of the first shunt pipe is connected to a filter box, a filter cavity corresponding to two outlets of the first shunt pipe is provided in the filter box, the outlet sides of the two filter cavities are connected to the inlet of a first manifold, the outlet of the first manifold is connected to the inlet of a lifting pump, the outlet of the lifting pump is connected to the lower part of the filter tank body by a first reflux pipeline, a clamping plate is fixed on the edge of the lower flange set, the cylinder rod of the lifting cylinder passes through the filter plate and is connected and fixed to the clamping plate, a feed pipe is provided on the top of the filter tank body, a discharge pipe is provided on the bottom, a circulation pipe is provided on the side of the lower part, a second reflux pipeline is provided between the circulation pipe and the feed pipe, and a circulation pump is provided on the second reflux pipeline.

2. The filtering circulation tank for brine purification according to claim 1, characterized in that: A first control valve is respectively provided on the shunt branches of the first shunt pipe, a side opening is provided on the pipe section between the first control valve and the outlet of the first shunt pipe, the two side openings are connected to the outlet of the second shunt pipe, the inlet of the second shunt pipe is used to connect the flushing pipeline, and a second control valve is respectively provided on the shunt branches of the second shunt pipe.

3. The filtering circulation tank for brine purification according to claim 1, characterized in that: An inclined filter screen is provided in the filter chamber, and the inclined filter screen is used to separate the filter chamber into an upper water inlet chamber and a lower water outlet chamber. The upper water inlet chamber is connected to the outlet of the first diversion pipe, and the lower water outlet chamber is connected to the inlet of the first confluence pipe. A third control valve is respectively provided on the two confluence branches of the first confluence pipe.

4. The filtering circulation tank for brine purification according to claim 1, characterized in that: A second conduit is provided at the bottom of the filter box and is connected to the upper water inlet chamber and the lower water outlet chamber of the filter chamber respectively. The outlet of the second conduit is used to connect to the cleaning pipeline. Fourth control valves are respectively provided on the two conduit branches of the second conduit.

5. The filtering circulation tank for brine purification according to claim 1, characterized in that: A liquid level gauge for detecting the liquid level is provided on the upper part of the filter tank body.

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