Saline water refining filter in sodium chlorate production

Abstract

The utility model discloses a salt water refining filter in sodium chlorate production, which relates to the technical field of sodium chloride production and comprises a polytetrafluoroethylene membrane filter, a preliminary filtering mechanism is mounted on one side of the polytetrafluoroethylene membrane filter, a mixing mechanism is mounted on one side of the preliminary filtering mechanism, the preliminary filtering mechanism comprises a support plate, and the support plate is mounted on the support plate. The second motor works to drive the connecting blades to rotate, the spiral blades and the filtering barrel rotate along with the connecting blades, a solution is filtered out through the filtering holes in the filtering barrel, and large-particle matter moves towards the discharging frame along with rotation of the spiral blades and enters the discharging frame to be collected. Large particles are primarily filtered through the primary filtering mechanism, so that a large number of particle impurities in the mixed solution are prevented from physically damaging a filter element in the polytetrafluoroethylene membrane filter, and the service life of the polytetrafluoroethylene membrane filter is not influenced.

Description

Technical Field

[0001] This utility model relates to the field of sodium chloride production technology, and in particular to a brine purification filter used in sodium chlorate production. Background Technology

[0002] In the production process of sodium chlorate, the brine needs to be filtered through a brine refining filter to remove impurities and achieve the purpose of refining the brine.

[0003] For example, CN220194244U discloses an automatic backwashing brine refining device, which includes a brine refining equipment body, a liquid outlet pipe on one side of the body, a control valve on one side of the liquid outlet pipe, a filter box at one end of the liquid outlet pipe, and a rinsing component for preventing the filter box from clogging. The rinsing component includes two liquid guide plates on the inside of the filter box, a filter frame between the two liquid guide plates, and two filter plates on the inside of the filter frame. This utility model uses a body, filter plates, nozzles, and discharge pipe.

[0004] In the existing technology, brine is purified by a PTFE membrane filter. Because the PTFE membrane filter has high filtration accuracy, it can remove tiny impurities, colloids, bacteria and some organic matter. However, brine contains a large number of large particles of impurities, which may cause physical damage to the PTFE membrane, resulting in a decrease in the purification quality of the brine and an inability to effectively remove the tiny impurities that need to be retained. Utility Model Content

[0005] The purpose of this invention is to solve the problem in the existing technology that brine contains a large number of large particulate impurities, which may cause physical damage to the PTFE membrane, affect the filtration effect of the PTFE membrane filter, and lead to a decline in the purification quality of the brine. Therefore, this invention proposes a brine purification filter for sodium chlorate production.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a brine refining filter for sodium chlorate production, comprising a PTFE membrane filter, a preliminary filtration mechanism installed on one side of the PTFE membrane filter, a mixing mechanism installed on one side of the preliminary filtration mechanism, the preliminary filtration mechanism comprising a support plate, a fixed frame fixedly connected to one side of the support plate, a fixed outer shell fixedly connected to one side of the fixed frame, a protective shell fixedly connected to one end of the fixed outer shell, a second motor fixedly connected inside the protective shell, a connecting blade fixedly connected to the output end of the second motor, a spiral blade fixedly connected to one end of the connecting blade, a filter barrel sleeved outside the spiral blade, a third connecting pipe fixedly connected to the bottom side of the fixed frame, and one end of the third connecting pipe fixedly connected to one end of the PTFE membrane filter.

[0007] Preferably, a rolling ball is rotatably connected to one side of the fixed frame, and the outside of the rolling ball is slidably connected to the outside of the filter barrel.

[0008] Preferably, one end of the fixed frame is provided with a discharge frame, and one side of the discharge frame is fixedly connected to one end of the fixed shell.

[0009] Preferably, the mixing mechanism includes a placement box, a first motor is mounted on the top of the placement box, a rotating shaft is fixedly connected to the output end of the first motor, and a second stirring blade is fixedly connected to the outside of the rotating shaft.

[0010] Preferably, a first stirring blade is fixedly connected to the outside of the rotating shaft.

[0011] Preferably, the bottom of the placement box is fixedly connected to a first connecting pipe, one end of the first connecting pipe is fixedly connected to a conveying pump, and one side of the conveying pump is fixedly connected to the bottom side of the placement box.

[0012] Preferably, one end of the delivery pump is fixedly connected to a second connecting pipe, and one end of the second connecting pipe is rotatably connected to one end of the filter barrel.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] 1. In this utility model, the second motor drives the connecting blades to rotate, and the spiral blades and filter barrel rotate accordingly. Multiple filter holes on the filter barrel filter out the solution. Large particles move towards the discharge frame as the spiral blades rotate and are collected inside the discharge frame. The large particles are initially filtered through the preliminary filtration mechanism to prevent a large number of particulate impurities in the mixed solution from causing physical damage to the internal filter element of the PTFE membrane filter and affecting the service life of the PTFE membrane filter.

[0015] 2. In this utility model, the first motor drives the rotating shaft to rotate, and the second stirring blade and the first motor move accordingly to mix the solution inside the placement box. The delivery pump works to send the mixed qualified brine into the filter barrel for preliminary filtration. After filtration, the solution enters the interior of the PTFE membrane filter through the third connecting pipe. The PTFE membrane filter performs fine filtration of the solution, thereby performing brine purification filtration and improving the filtration effect. Attached Figure Description

[0016] Figure 1 A three-dimensional structural diagram of a brine refining filter for sodium chlorate production is provided for this utility model.

[0017] Figure 2 This utility model provides a schematic diagram of the connection structure of the preliminary filtration mechanism of a brine refining filter in sodium chlorate production.

[0018] Figure 3 This utility model provides a schematic diagram of the disassembly structure of the preliminary filtration mechanism of a brine refining filter in sodium chlorate production.

[0019] Figure 4 This invention presents a disassembled structural diagram of the mixing mechanism of a brine refining filter used in sodium chlorate production.

[0020] Legend: 1. Mixing mechanism; 11. Placement box; 12. First motor; 13. First stirring blade; 14. Rotating shaft; 15. First connecting pipe; 16. Delivery pump; 17. Second connecting pipe; 18. Second stirring blade; 2. Preliminary filtration mechanism; 21. Support plate; 22. Fixed outer shell; 23. Protective shell; 24. Discharge frame; 25. Third connecting pipe; 26. Filter barrel; 27. Second motor; 28. Connecting blade; 29. ​​Rolling ball; 210. Spiral blade; 211. Fixed frame; 3. PTFE membrane filter. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0023] Example 1: As Figure 1 - Figure 4As shown, this utility model provides a brine refining filter for sodium chlorate production, including a PTFE membrane filter 3. A preliminary filtration mechanism 2 is installed on one side of the PTFE membrane filter 3, and a mixing mechanism 1 is installed on one side of the preliminary filtration mechanism 2. The preliminary filtration mechanism 2 includes a support plate 21, a fixed frame 211 is fixedly connected to one side of the support plate 21, a fixed housing 22 is fixedly connected to one side of the fixed frame 211, a protective shell 23 is fixedly connected to one end of the fixed housing 22, and a second motor 27 is fixedly connected inside the protective shell 23. The output end of the second motor 27... A connecting blade 28 is fixedly connected, and a spiral blade 210 is fixedly connected to one end of the connecting blade 28. A filter barrel 26 is sleeved on the outside of the spiral blade 210. A third connecting pipe 25 is fixedly connected to the bottom side of the fixed frame 211, and one end of the third connecting pipe 25 is fixedly connected to one end of the PTFE membrane filter 3. A rolling ball 29 is rotatably connected to one side of the fixed frame 211, and the outside of the rolling ball 29 is slidably connected to the outside of the filter barrel 26. A discharge frame 24 is provided at one end of the fixed frame 211, and one side of the discharge frame 24 is fixedly connected to one end of the fixed housing 22.

[0024] The mixed brine enters the interior of the filter barrel 26 through the second connecting pipe 17. The second motor 27 drives the connecting blade 28 to rotate, and the spiral blade 210 and the filter barrel 26 rotate accordingly. Multiple filter holes are opened on the outside of the filter barrel 26 to filter out the solution. Large particles in the solution are retained inside the filter barrel 26. As the spiral blade 210 rotates, it moves towards the discharge frame 24, and the large particles are collected inside the discharge frame 24. The filtered solution enters the interior of the PTFE membrane filter 3 through the third connecting pipe 25 for fine filtration. Before using the PTFE membrane filter 3 for brine purification filtration, it first passes through the preliminary filtration mechanism 2 for preliminary filtration of large particles to prevent a large number of large particles in the mixed solution from causing physical damage to the filter element inside the PTFE membrane filter 3 and affecting the service life of the PTFE membrane filter 3.

[0025] Example 2: Figure 1 and Figure 4 As shown, the mixing mechanism 1 includes a placement box 11, a first motor 12 is mounted on the top of the placement box 11, a rotating shaft 14 is fixedly connected to the output end of the first motor 12, a second stirring blade 18 is fixedly connected to the outside of the rotating shaft 14, a first stirring blade 13 is fixedly connected to the outside of the rotating shaft 14, a first connecting pipe 15 is fixedly connected to the bottom of the placement box 11, a delivery pump 16 is fixedly connected to one end of the first connecting pipe 15, one side of the delivery pump 16 is fixedly connected to the bottom side of the placement box 11, a second connecting pipe 17 is fixedly connected to one end of the second connecting pipe 17, and one end of the second connecting pipe 17 is rotatably connected to one end of the filter barrel 26.

[0026] The solution is fed into the placement tank 11. The first motor 12 drives the rotating shaft 14 to rotate, and the second stirring blade 18 and the first stirring blade 13 move accordingly to mix the solution inside the placement tank 11. The qualified mixed brine is then fed into the filter tank 26 through the placement tank 11 and the second connecting pipe 17 for preliminary filtration by the delivery pump 16. The filtered solution then enters the PTFE membrane filter 3 through the third connecting pipe 25 for fine filtration. The qualified mixed solution is then sent out from the outlet of the PTFE membrane filter 3 and enters the qualified brine tank for buffering.

[0027] The method of use and working principle of this device: The solution is sent into the interior of the placement tank 11. The first motor 12 drives the rotating shaft 14 to rotate, and the second stirring blade 18 and the first stirring blade 13 move accordingly to mix the solution inside the placement tank 11. The qualified mixed brine is sent into the interior of the filter tank 26 through the placement tank 11 and the second connecting pipe 17 by the operation of the delivery pump 16. The second motor 27 drives the connecting blade 28 to rotate, and the spiral blade 210 and the filter tank 26 rotate accordingly. Multiple filter holes are opened on the outside of the filter tank 26 to filter out the solution. Large particles in the solution are retained inside the filter tank 26. As the spiral blade 210 rotates, it moves towards the discharge frame 24, and the large particles are collected inside the discharge frame 24. After filtration, the solution enters the interior of the PTFE membrane filter 3 through the third connecting pipe 25. The solution is finely filtered by the PTFE membrane filter 3. The qualified mixed solution after filtration is sent out from the outlet of the PTFE membrane filter 3 and enters the qualified brine tank for buffering.

[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A brine purification filter for sodium chlorate production, comprising a PTFE membrane filter (3), characterized in that: A preliminary filtration mechanism (2) is installed on one side of the PTFE membrane filter (3), and a mixing mechanism (1) is installed on one side of the preliminary filtration mechanism (2). The preliminary filtration mechanism (2) includes a support plate (21). A fixed frame (211) is fixedly connected to one side of the support plate (21). A fixed outer shell (22) is fixedly connected to one side of the fixed frame (211). A protective shell (23) is fixedly connected to one end of the fixed outer shell (22). A second motor (27) is fixedly connected inside the protective shell (23). A connecting blade (28) is fixedly connected to the output end of the second motor (27). A spiral blade (210) is fixedly connected to one end of the connecting blade (28). A filter barrel (26) is sleeved on the outside of the spiral blade (210). A third connecting pipe (25) is fixedly connected to the bottom side of the fixed frame (211). One end of the third connecting pipe (25) is fixedly connected to one end of the PTFE membrane filter (3).

2. The brine refining filter for sodium chlorate production according to claim 1, characterized in that: A rolling ball (29) is rotatably connected to one side of the fixed frame (211), and the outside of the rolling ball (29) is slidably connected to the outside of the filter barrel (26).

3. The brine refining filter for sodium chlorate production according to claim 1, characterized in that: One end of the fixed frame (211) is provided with a discharge frame (24), and one side of the discharge frame (24) is fixedly connected to one end of the fixed shell (22).

4. A brine refining filter for sodium chlorate production according to claim 1, characterized in that: The mixing mechanism (1) includes a placement box (11), on the top of which a first motor (12) is installed. The output end of the first motor (12) is fixedly connected to a rotating shaft (14), and a second stirring blade (18) is fixedly connected to the outside of the rotating shaft (14).

5. A brine refining filter for sodium chlorate production according to claim 4, characterized in that: The rotating shaft (14) is externally fixedly connected to a first stirring blade (13).

6. A brine refining filter for sodium chlorate production according to claim 4, characterized in that: The bottom of the placement box (11) is fixedly connected to a first connecting pipe (15), one end of the first connecting pipe (15) is fixedly connected to a conveying pump (16), and one side of the conveying pump (16) is fixedly connected to the bottom side of the placement box (11).

7. A brine refining filter for sodium chlorate production according to claim 6, characterized in that: One end of the delivery pump (16) is fixedly connected to a second connecting pipe (17), and one end of the second connecting pipe (17) is rotatably connected to one end of the filter barrel (26).

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