Disc filter device for different specific gravity slurry potassium sodium mixed salt

By introducing a rotating column and a stirring plate into the disc filter, combined with the sliding cleaning function of the filter plate, the problem of uneven filter cake caused by the difference in specific gravity in potassium-sodium mixed salt slurry is solved, achieving efficient filtration and improved product quality.

CN224292715UActive Publication Date: 2026-05-29JIANGXI JIULING LITHIUM CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGXI JIULING LITHIUM CO LTD
Filing Date
2025-07-24
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

When traditional disc filters process potassium-sodium mixed salt slurries of different specific gravities, the lighter components tend to float while the heavier components tend to settle, resulting in uneven distribution of the filter cake and affecting filtration efficiency and product quality.

Method used

The disc filter device includes a filter tank, filter trough, rotating column, filter disc, stirring plate and cleaning device. The rotating column and stirring plate are driven by the drive component to rotate, mix the slurry and use the filter plate to slide back and forth on the surface of the filter disc to prevent sedimentation and clogging.

Benefits of technology

Maintaining a uniform slurry consistency improves filtration efficiency and product quality, prevents filter disc clogging, and enhances the practicality of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a disc filter device for different specific gravity slurry potassium sodium mixed salt, include: filter pool. The utility model provides a disc filter device for different specific gravity slurry potassium sodium mixed salt, and the rotation of rotating column is driven by the rotation of first driving element output shaft, and rotating column drives filter disc and agitator plate rotation, and the mixed liquid in filter groove is stirred, and agitator plate mixes and filters the salt particle and surface layer slurry that deposit in bottom, and the filter material that surface intercepts is beaten down by the movement of filter plate and the beating of slurry, avoids the blockage of filter material, keeps the filtering effect of filter disc, can effectively prevent the potassium sodium mixed salt particle in different specific gravity slurry and deposit, makes the slurry always keep uniform state in the filtering process, improves the filtering efficiency and product quality, and filter plate reciprocating slide beats slurry on the surface of filter disc, effectively prevents filter disc from blocking, keeps filtering effect, improves the practicality of this device.
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Description

Technical Field

[0001] This utility model relates to the field of disc filter technology, and in particular to a disc filter device for potassium-sodium mixed salt slurries with different specific gravities. Background Technology

[0002] In the production process of potassium-sodium mixed salt, slurries with different specific gravities are often generated, which need to be separated into solid and liquid components to obtain pure salt products.

[0003] When traditional disc filters process this type of slurry, the different components in the potassium-sodium mixed salt slurry have large differences in specific gravity, causing the lighter components to float and the heavier components to settle, resulting in an uneven distribution of the filter cake on the filter disc during the filtration process.

[0004] In the process of extracting potassium and sodium from salt lakes, the brine containing mixed potassium and sodium salts is initially treated to form a slurry. When a conventional disc filter is used for filtration, the heavier salt particles quickly settle to the bottom of the filter, while the lighter impurities accumulate on the upper layer of the slurry, affecting filtration efficiency and product quality.

[0005] Therefore, it is necessary to provide a disc filter device for potassium-sodium mixed salt slurries with different specific gravities to solve the above-mentioned technical problems. Utility Model Content

[0006] This invention provides a disc filter device for potassium-sodium mixed salt slurries with different specific gravities. It solves the problem that when brine containing potassium-sodium mixed salt is initially treated to form a slurry, and a conventional disc filter is used for filtration, the heavier salt particles quickly settle to the bottom of the filter, while the lighter impurities accumulate on the upper layer of the slurry, affecting filtration efficiency and product quality.

[0007] To solve the above-mentioned technical problems, this utility model provides a disc filter device for potassium-sodium mixed salt slurries with different specific gravities, comprising: a filter tank;

[0008] A filter tank is provided, located in the middle of the top of the filter pool. A first driving component is fixedly installed on one side of the outer surface of the filter pool, and a rotating column is fixedly connected to the end of the output shaft of the first driving component.

[0009] A filter disc is fixedly installed at equal intervals on the outer surface of the rotating column. On the other side of the outer surface of the rotating column, a number of rotating ring blocks are fixedly installed at equal intervals. Four sets of stirring plates are fixedly installed at equal intervals on the outer surface of the rotating ring blocks.

[0010] A cleaning device is installed on top of the filter tank. The cleaning device includes a mounting plate, connecting rods, a mounting box, hanging rods, a filter plate, a moving groove, a second driving component, a reciprocating screw, and a threaded block. The mounting plate is bolted to the roof surface. Two connecting rods are fixedly installed on both sides of the bottom of the mounting plate. The mounting box is fixedly installed on the bottom of the connecting rods. The moving groove is located in the middle of the bottom of the mounting box. The second driving component is fixedly installed on one side of the outer surface of the mounting box. The reciprocating screw is rotatably installed inside the moving groove. The threaded block is threadedly engaged with the outer surface of the reciprocating screw. Multiple hanging rods are fixedly installed at equal intervals on the bottom of the threaded block. The filter plate is fixedly connected to the bottom end of the hanging rod.

[0011] Preferably, an inlet pipe is provided on one side of the outer surface of the filter tank, and a drain pipe is provided on the other side of the outer surface of the filter tank.

[0012] Preferably, a climbing frame is provided on the rear side of the filter tank.

[0013] Preferably, the output shaft end of the second drive member is fixedly connected to the reciprocating lead screw, and the filter plate is sleeved on the outer surface of the rotating column.

[0014] Preferably, both the first driving component and the second driving component adopt a servo motor structure.

[0015] Preferably, the stirring plate is L-shaped.

[0016] Preferably, a cleaning plate is fixedly installed on one side of the stirring plate.

[0017] Compared with related technologies, the disc filter device for potassium-sodium mixed salt slurries of different specific gravities provided by this utility model has the following beneficial effects:

[0018] This invention provides a disc filter device for potassium-sodium mixed salt slurries of different specific gravities. The first driving component's output shaft rotates, driving a rotating column to rotate. This rotating column, in turn, drives a filter disc and a stirring plate to rotate, stirring the mixed liquid in the filter tank. The stirring plate mixes and filters the salt particles settled at the bottom with the surface slurry. The filter plate can slide back and forth on the surface of the filter disc, and its movement and tapping of the slurry dislodges surface-entrapped filter material, preventing clogging and maintaining the filtration effect of the filter disc. This device has a simple structure, is highly practical, and effectively prevents the precipitation of potassium-sodium mixed salt particles in slurries of different specific gravities, ensuring the slurry remains uniform during filtration, thus improving filtration efficiency and product quality. The back-and-forth sliding and tapping of the filter plate on the filter disc surface effectively prevents clogging, maintains filtration effectiveness, and enhances the practicality of the device. Attached Figure Description

[0019] Figure 1 A schematic diagram of the structure of a first embodiment of a disc filter device for potassium-sodium mixed salt slurries of different specific gravities provided by this utility model;

[0020] Figure 2 for Figure 1 The diagram shows a side view of the filter tank.

[0021] Figure 3 for Figure 1 The diagram shown is a bottom view of the filter tank.

[0022] Figure 4 for Figure 3 The enlarged schematic diagram at point A is shown below;

[0023] Figure 5 This is a schematic diagram of the second embodiment of a disc filter device for potassium-sodium mixed salt slurries with different specific gravities provided by this utility model.

[0024] The following are the labels in the diagram: 1. Filter pool, 2. Filter tank, 3. First driving component, 4. Rotating column, 5. Rotating column, 6. Stirring plate, 7. Filter disc, 8. Inlet pipe, 9. Drain pipe, 10. Cleaning device, 101. Mounting plate, 102. Connecting rod, 103. Mounting box, 104. Hanging rod, 105. Filter plate, 106. Moving trough, 107. Second driving component, 108. Reciprocating screw, 109. Threaded block, 11. Climbing frame, 12. Cleaning plate. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0026] First Embodiment

[0027] Please refer to the following: Figure 1 , Figure 2 , Figure 3 and Figure 4 ,in, Figure 1 A schematic diagram of the structure of a first embodiment of a disc filter device for potassium-sodium mixed salt slurries of different specific gravities provided by this utility model;

[0028] Figure 2 for Figure 1 The diagram shows a side view of the filter tank. Figure 3 for Figure 1 The diagram shown is a bottom view of the filter tank. Figure 4 for Figure 3 The enlarged schematic diagram at point A is shown.

[0029] A disc filter device for potassium-sodium mixed salt slurry with different specific gravities includes: a filter tank 1;

[0030] The filter tank 2 is located in the middle of the top of the filter pool 1. A first driving component 3 is fixedly installed on one side of the outer surface of the filter pool 1. A rotating column 4 is fixedly connected to the end of the output shaft of the first driving component 3.

[0031] A filter disc 7 is fixedly installed at equal intervals on the outer surface of the rotating column 4. A plurality of rotating ring blocks 5 are fixedly installed at equal intervals on the other side of the outer surface of the rotating column 4. Four sets of stirring plates 6 are fixedly installed at equal intervals on the outer surface of the rotating ring blocks 5.

[0032] A cleaning device 10 is disposed on the top of the filter tank 1. The cleaning device 10 includes a mounting plate 101, connecting rods 102, a mounting box 103, hanging rods 104, a filter plate 105, a moving groove 106, a second driving component 107, a reciprocating screw 108, and a threaded block 109. The mounting plate 101 is bolted to the roof surface. The two connecting rods 102 are respectively fixedly installed on both sides of the bottom of the mounting plate 101. The mounting box 103 is fixedly installed on the filter tank 1. At the bottom of the connecting rod 102, the moving groove 106 is opened in the middle of the bottom of the mounting box 103. The second driving member 107 is fixedly installed on one side of the outer surface of the mounting box 103. The reciprocating screw 108 is rotatably installed inside the moving groove 106. The threaded block 109 is threadedly engaged with the outer surface of the reciprocating screw 108. Multiple hanging rods 104 are fixedly installed at equal intervals at the bottom of the threaded block 109. The filter plate 105 is fixedly connected to the bottom end of the hanging rod 104.

[0033] An inlet pipe 8 is provided on one side of the outer surface of the filter tank 1, and a drain pipe 9 is provided on the other side of the outer surface of the filter tank 1.

[0034] A climbing frame 11 is provided on the rear side of the filter pool 1.

[0035] The output shaft end of the second drive member 107 is fixedly connected to the reciprocating lead screw 108, and the filter plate 105 is sleeved on the outer surface of the rotating column 4.

[0036] Both the first driving component 3 and the second driving component 107 adopt a servo motor structure.

[0037] The stirring plate 6 is L-shaped.

[0038] The reciprocating screw 108 rotates and engages with the threaded block 109, which slides back and forth inside the moving groove 106. The length of the slide is just appropriate for the distance between the filter plate 105 and the stirring plate 6.

[0039] Multiple connecting holes are opened on the surface of the stirring plate 6, and the hole diameter is relatively large, so as to facilitate the passage of salt particles and slurry and prevent the slurry from being scooped up and stirred out of the filter tank 2 when the stirring plate 6 is stirring.

[0040] Mounting plate 101 is bolted to the ceiling, with its bottom facing the filter tank 1.

[0041] The working principle of the disc filter device for potassium-sodium mixed salt slurries with different specific gravities provided by this utility model is as follows:

[0042] During operation, the first driving component 3 rotates, which in turn drives the rotating column 4 to rotate. The rotating column 4 then drives the surface filter disc 7, rotating ring block 5, and stirring plate 6 to rotate together. The stirring plate 6 stirs up the salt particles at the bottom of the filter tank 2 and mixes them with the surface slurry, maintaining the uniformity of the slurry during the filtration process.

[0043] After a large amount of blockage accumulates on the surface of the filter plate 105, the output shaft of the second drive component 107 can rotate to drive the reciprocating screw 108 to rotate. The reciprocating screw 108 rotates and engages with the threaded block 109 on the outer surface, which slides back and forth inside the moving groove 106, causing the filter plate 105 to slide left and right on the surface of the filter disc 7. When the filter plate 105 moves away from the filter disc 7, it pushes the blockage along with it. As the filter plate 105 slides back, the blockage on the surface falls off due to inertia and the impact of the slurry. Then the filter plate 105 reattaches to the surface of the filter disc 7 to continue filtering and protecting the filter disc 7.

[0044] Compared with related technologies, the disc filter device for potassium-sodium mixed salt slurries of different specific gravities provided by this utility model has the following beneficial effects:

[0045] This invention provides a disc filter device for potassium-sodium mixed salt slurries of different specific gravities. The first driving component 3 rotates its output shaft, driving a rotating column 4 to rotate. The rotating column 4 then drives the filter disc 7 and stirring plate 6 to rotate, stirring the mixed liquid in the filter tank 2. The stirring plate 6 mixes and filters the salt particles settled at the bottom with the surface slurry. The filter plate 105 can slide back and forth on the surface of the filter disc 7. The movement of the filter plate 105 taps the slurry, dislodging the filter material trapped on the surface and preventing clogging, thus maintaining the filtration effect of the filter disc 7. This device has a simple structure and strong practicality. It effectively prevents the precipitation of potassium-sodium mixed salt particles in slurries of different specific gravities, keeping the slurry uniform throughout the filtration process, improving filtration efficiency and product quality. The back-and-forth sliding of the filter plate 105 on the surface of the filter disc 7 effectively prevents clogging, maintains the filtration effect, and enhances the practicality of the device.

[0046] Second Embodiment

[0047] Please refer to the following: Figure 5Based on the first embodiment of this application, a disc filter apparatus for potassium-sodium mixed salt slurries of different specific gravities is provided. The second embodiment of this application proposes another disc filter apparatus for potassium-sodium mixed salt slurries of different specific gravities. The second embodiment is merely a preferred embodiment of the first embodiment, and its implementation will not affect the separate implementation of the first embodiment.

[0048] Specifically, the disc filter device for potassium-sodium mixed salt slurry with different specific gravities provided in the second embodiment of this application is different in that a cleaning plate 12 is fixedly installed on one side of the stirring plate 6.

[0049] The working principle of the disc filter device for potassium-sodium mixed salt slurries with different specific gravities provided by this utility model is as follows:

[0050] During operation, when the filter plate 105 moves toward the stirring plate 6, the filter plate 105 adheres to the surface of the cleaning plate 12, and the cleaning plate 12 rotates with the stirring plate 6. The cleaning plate 12 rotates on the surface of the filter plate 105, cleaning and scraping off the stubborn impurities accumulated on the surface of the filter plate 105.

[0051] Compared with related technologies, the disc filter device for potassium-sodium mixed salt slurries of different specific gravities provided by this utility model has the following beneficial effects:

[0052] This invention provides a disc filter device for potassium-sodium mixed salt slurries of different specific gravities. The filter plate 105 moves and adheres to the surface of the cleaning plate 12. The cleaning plate 12 rotates with the stirring plate 6, scraping off the impurities accumulated on the surface of the filter plate 105. This device has a simple structure and strong practicality. When the filter plate 105 cleans the impurities it intercepts, it works together with the cleaning plate 12 to improve the cleaning effect of intercepted impurities, maintain the filtration effect of the filter plate 105 and the filter disc 7, and maintain the working efficiency of the device.

[0053] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A disc filter device for potassium-sodium mixed salt slurries of different specific gravities, characterized in that, include: Filter pool; A filter tank is located in the middle of the top of the filter pool. A first driving component is fixedly installed on one side of the outer surface of the filter pool, and a rotating column is fixedly connected to the end of the output shaft of the first driving component. A plurality of filter discs are fixedly installed at equal intervals on the outer surface of the rotating column. A plurality of rotating ring blocks are fixedly installed at equal intervals on the other side of the outer surface of the rotating column. Four sets of stirring plates are fixedly installed at equal intervals on the outer surface of the rotating ring blocks. A cleaning device is installed on top of the filter tank. The cleaning device includes a mounting plate, connecting rods, a mounting box, hanging rods, a filter plate, a moving groove, a second driving component, a reciprocating screw, and a threaded block. The mounting plate is bolted to the roof surface. Two connecting rods are fixedly installed on both sides of the bottom of the mounting plate. The mounting box is fixedly installed on the bottom of the connecting rods. The moving groove is located in the middle of the bottom of the mounting box. The second driving component is fixedly installed on one side of the outer surface of the mounting box. The reciprocating screw is rotatably installed inside the moving groove. The threaded block is threadedly engaged with the outer surface of the reciprocating screw. Multiple hanging rods are fixedly installed at equal intervals on the bottom of the threaded block. The filter plate is fixedly connected to the bottom end of the hanging rod.

2. The disc filter device for potassium-sodium mixed salt slurries of different specific gravities according to claim 1, characterized in that, An inlet pipe is provided on one side of the outer surface of the filter tank, and a drain pipe is provided on the other side of the outer surface of the filter tank.

3. The disc filter device for potassium-sodium mixed salt slurries of different specific gravities according to claim 1, characterized in that, A climbing frame is provided at the rear of the filtration tank.

4. The disc filter device for potassium-sodium mixed salt slurries of different specific gravities according to claim 1, characterized in that, The output shaft end of the second drive member (107) is fixedly connected to the reciprocating lead screw (108), and the filter plate (105) is sleeved on the outer surface of the rotating column (4).

5. The disc filter device for potassium-sodium mixed salt slurries of different specific gravities according to claim 1, characterized in that, Both the first driving component and the second driving component adopt a servo motor structure.

6. The disc filter apparatus for potassium-sodium mixed salt slurries of different specific gravities according to claim 1, characterized in that, The stirring plate is L-shaped.

7. The disc filter apparatus for potassium-sodium mixed salt slurries of different specific gravities according to claim 1, characterized in that, A cleaning plate is fixedly installed on one side of the mixing plate.