A solid-liquid separation device for sodium tungstate solution production

Abstract

The present invention discloses a solid-liquid separation device for producing sodium tungstate solution, which relates to the technical field of separation and includes a separation box, wherein the separation box is connected to a material pipe symmetrically distributed along the transverse direction of the separation box, the separation box is fixedly connected to two fixed frames on one side close to the material pipe, the separation box is fixedly connected to a motor symmetrically distributed along the longitudinal direction of the separation box, the separation box is rotatably connected to a screw symmetrically distributed along the longitudinal direction of the separation box, the screw is fixedly connected to the adjacent motor, a push plate is threadedly connected between the symmetrically distributed screws, the push plate is slidably connected to the separation box, and the fixed frame is horizontally slidably connected to a closing plate. The present invention, through the arrangement of components such as the motor, the screw, the push plate, and the closing plate, can discharge solid precipitates in the subsequent discharge process of the precipitate without pausing the flow in and out of the sodium tungstate solution.

Description

Technical Field

[0001] The present invention relates to the technical field of separation, in particular to a solid-liquid separation device for producing sodium tungstate solution. Background Art

[0002] The original sodium tungstate solution may contain a variety of impurities, such as compounds of silicon, phosphorus, arsenic, iron, magnesium and other elements. The production process of sodium tungstate solution includes multiple levels of filtration steps, which are crucial for improving the purity of the solution. In the initial coarse filtration stage, simple filter plates play a basic role. They can effectively intercept larger solid particles and lay the foundation for subsequent fine processing. This level of filtration is mainly to remove large impurities that may hinder subsequent operations. This step requires adding an appropriate amount of specific chemical reagents to the solution to induce the impurities to precipitate. The impurities are then retained through precipitation filtration and the filtered liquid phase is discharged.

[0003] During solid-liquid separation, generally, the sodium tungstate solution containing impurities is continuously introduced into the separation device, and then the separated liquid phase is continuously discharged. However, as the precipitated impurities accumulate, it is necessary to stop introducing the sodium tungstate solution after the liquid phase in the separation device is discharged in order to clean up the precipitated impurities in the separation device. This slows down the progress of solid-liquid separation and affects the solid-liquid separation efficiency of the sodium tungstate solution.

[0004] Based on the above situation, the present invention proposes a solid-liquid separation device for producing sodium tungstate solution. Summary of the Invention

[0005] In order to overcome the disadvantage that the separation process will be interrupted when the impurities accumulated in the separation process are discharged from the bottom, the present invention provides a solid-liquid separation device for the production of sodium tungstate solution.

[0006] The cam is connected with the two guide rails of the present invention to the driven pulley, and the guide rail is connected with the two guide rails at the driven pulley side to the driven pulley for driving the cam.

[0007] More preferably, a filter plate is further included, and the filter plate is slidably connected to any one of the fixing frames.

[0008] More preferably, a baffle is further included, wherein the baffle is fixedly connected to the separation box and is located between the two fixed frames.

[0009] More preferably, the lengths of the inclined column blocks located on the same vertical line gradually increase from bottom to top.

[0010] More preferably, the reset assembly includes the U-shaped slide rod symmetrically distributed along the separation box, the U-shaped slide rod is slidingly connected to the separation box, the U-shaped slide rod is fixedly connected to the adjacent closing plate, and a tension spring is fixedly connected between the pull frame and the separation box.

[0011] More preferably, the adjustment assembly includes the pull frame, the pull frame is slidably connected to the adjacent U-shaped sliding rod, the U-shaped sliding rod is rotatably connected to a nut, and the nut is threadedly connected to the adjacent pull frame.

[0012] More preferably, it also includes a guide rack symmetrically distributed along the transverse direction of the separation box, the guide rack is slidingly connected to the separation box, the guide rack is movably connected to the valve stem of the adjacent discharge valve, the side of the closing plate close to the adjacent guide rack and the side of the pulling rack close to the adjacent guide rack are fixedly connected with spring plates, the side of the guide rack close to the adjacent closing plate and the side close to the adjacent pulling rack are both provided with a first card slot, and the first card slot is limitedly matched with the adjacent spring plates.

[0013] More preferably, it also includes the same number of card plates as the closing plates, the card plates are slidably connected to the corresponding closing plates, the card plates and the adjacent closing plates are fixedly connected with first springs symmetrically distributed along the longitudinal direction of the card plates, the fixed frame is provided with a plurality of second card slots distributed at equal intervals, the second card slots are used to limit the adjacent card plates, the push plate is fixed with wedge blocks symmetrically distributed along the push plate, and the wedge blocks move horizontally to squeeze and fit with the adjacent card plates on the same side.

[0014] More preferably, it further comprises a rotating rack symmetrically distributed along the separation box, wherein the rotating rack is rotatably connected to the separation box, and the rotating rack is threadedly connected to the adjacent U-shaped sliding rod.

[0015] More preferably, a second spring is further included, the two ends of the second spring are respectively fixedly connected to the filter plate and the adjacent fixed frame, the filter plate is vertically slidably connected to a wedge plate, the wedge surface of the wedge plate is in contact with the push plate, and a third spring is fixedly connected between the wedge plate and the filter plate.

[0016] Compared with the prior art, the present invention has the following advantages: through the arrangement of components such as the motor, the screw, the push plate and the closing plate, the present invention can discharge the solid precipitate without pausing the flow of the sodium tungstate solution in the subsequent discharge process, that is, it does not affect the progress of the solid-liquid separation, thereby ensuring the solid-liquid separation efficiency of the sodium tungstate solution.

[0017] The present invention provides a pull frame and a nut so that the position of the hole blocked by the closing plate of the push plate can be adjusted, thereby adjusting the amount of sediment pushed out and the amount of a small amount of solution mixed in according to the sediment content, avoiding waste caused by excessive amount of solution pushed out.

[0018] The present invention utilizes the arrangement in which the length of the inclined column block increases gradually from bottom to top, so that the push plate slowly separates from the inclined column block when it is reset, allowing the solution on one side of the push plate to slowly flow to the other side, thereby preventing the circular holes of the push plate from opening at the same time, causing the solution to quickly flow into the other side of the push plate, thereby destroying the formed precipitate.

[0019] The present invention can automatically and quickly open the discharge valve when the sediment starts to be pushed out, and can automatically and quickly close the discharge valve when the pushing is completed and ready to return to the position, so as to prevent the discharge valve from being closed in time and causing the pushed sediment to flow back under negative pressure.

[0020] The present invention performs initial position limiting on the closing plate so that the push plate is completely fitted with the closing plate, that is, the push plate is completely closed before moving together, thereby preventing the push plate from pushing out the precipitate before it is closed, thereby avoiding reverse backflow of the precipitate during the pushing process, and effectively ensuring the efficiency of solid-liquid separation of the sodium tungstate solution.

[0021] The present invention utilizes a U-shaped slide bar that drives the rotating frame to rotate when it moves, so that the sediment is stirred and evenly mixed with the mixed solution during discharge, thereby achieving the effect of diluting the sediment, which is conducive to the rapid discharge of the sediment with weaker fluidity along with the solution with stronger fluidity.

[0022] The present invention realizes automatic left-right movement of the filter plate by arranging the second spring, the wedge plate and the third spring, shakes off the filter material attached to the filter plate, and prevents the filter plate from being blocked and affecting the filtering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0024] Figure 2 It is a schematic diagram of the three-dimensional structure of the separation box, material pipe, fixing frame and other components of the present invention.

[0025] Figure 3 It is a schematic diagram of the three-dimensional structure of the motor, screw, push plate and other components of the present invention.

[0026] Figure 4 It is a three-dimensional structural diagram of the components such as the tension frame, nut and tension spring of the present invention.

[0027] Figure 5 It is a schematic diagram of the three-dimensional structure of the discharge valve, guide frame, spring and other components of the present invention.

[0028] Figure 6 It is a schematic diagram of the three-dimensional structure of the push plate, wedge block and other components of the present invention.

[0029] Figure 7 It is a schematic diagram of the three-dimensional structure of the clamping plate, the first spring and other components of the present invention.

[0030] Figure 8 It is a schematic diagram of the three-dimensional structure of the closing plate, U-shaped sliding rod and rotating frame of the present invention.

[0031] Figure 9 It is a schematic diagram of the three-dimensional structure of the fixing frame, the second spring, the wedge plate and other components of the present invention.

[0032] The markings of the components in the accompanying drawings are as follows: 1. Separation box; 2. Material pipe; 3. Fixed frame; 301. Filter plate; 4. Baffle; 5. Motor; 6. Screw; 7. Push plate; 8. Closing plate; 9. U-shaped slide bar; 10. Discharge valve; 11. One-way valve; 12. Inclined column block; 13. Pull frame; 14. Nut; 15. Tension spring; 16. Guide frame; 17. Shrapnel; 171. First slot; 18. Card plate; 19. First spring; 20. Second slot; 21. Wedge block; 22. Rotating frame; 23. Second spring; 24. Wedge plate; 25. Third spring. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] Example 1: A solid-liquid separation device for producing sodium tungstate solution, combined with the attached Figure 1 To the attached Figure 4 , including a separation box 1, the top of the separation box 1 is connected to a material pipe 2 symmetrically distributed along the left and right sides of the separation box 1, and two fixed frames 3 are fixedly connected to the side of the inner part of the separation box 1 near the material pipe 2, one fixed frame 3 is located on the left side of the separation box 1, and the other fixed frame 3 is located on the right side of the separation box 1. The fixed frame 3 is used to guide the sodium tungstate solution, and the left side of the fixed frame 3 on the right side is slidably connected to a filter plate 301 in the left and right directions. A baffle 4 is fixedly connected to the middle of the inner top of the separation box 1, and the baffle 4 is located between the two fixed frames 3. The right side of the outside of the separation box 1 is fixedly connected to a motor 5 symmetrically distributed along the front and back of the separation box 1, and the separation box 1 is horizontally through-rotatingly connected to a screw 6 symmetrically distributed along the front and back of the separation box 1. The screw 6 is fixedly connected to the adjacent motor 5 output shaft, and a push plate 7 is threadedly connected between the symmetrically distributed screws 6. The push plate 7 is slidably connected to the separation box 1, and the bottom of the fixed frame 3 is slidably connected to a closing plate 8 in the left and right directions. The push plate 7 moves and contacts with the closing plate 8. The closing plate 8 has several through slots, the separation box 1 is horizontally slidably connected to a U-shaped slide bar 9 symmetrically distributed along the left and right sides of the separation box 1, the U-shaped slide bar 9 is fixedly connected to the adjacent closing plate 8, the lower part of the separation box 1 is fixedly connected to a discharge valve 10 symmetrically distributed along the left and right sides of the separation box 1, which is used to discharge the sediment out of the separation box 1, the upper part of the separation box 1 is connected to a one-way valve 11 symmetrically distributed along the left and right sides of the separation box 1, which limits the one-way entry of external gas into the separation box 1, and the closing plate 8 is fixedly connected to the side of the push plate 7 There are several inclined column blocks 12 distributed at equal intervals. The lengths of the inclined column blocks 12 located on the same vertical line gradually increase from bottom to top. The push plate 7 is provided with circular holes corresponding to the inclined column blocks 12. The inclined column blocks 12 are inserted into the circular holes of the push plate 7 to close the push plate 7. A pull rack 13 is connected to the U-shaped slide rod 9 for sliding along the left and right directions. A nut 14 is connected to the middle rotation of the U-shaped slide rod 9. The nut 14 is threadedly connected to the adjacent pull rack 13. A tension spring 15 is fixedly connected between the pull rack 13 and the separation box 1.

[0035] First, the sodium tungstate solution with a specific chemical reagent added enters the separation box 1 through the material pipe 2 on the left, and flows along the fixed frame 3 on the left to the lower part of the separation box 1 until the sodium tungstate solution fills the separation box 1.

[0036] After the solid impurities in the sodium tungstate solution in the separation box 1 are completely precipitated, the sodium tungstate solution with the specific chemical reagent is continuously introduced through the material pipe 2 on the left, and the output shaft of the motor 5 is controlled to drive the screw 6 to rotate forward, thereby driving the push plate 7 to move to the left. During the leftward movement, the push plate 7 pushes the precipitate on its left side to the left, and most of the solution on the left side flows back to the right through the circular hole of the push plate 7.

[0037] When the push plate 7 moves to the left and contacts the closing plate 8 on the left, the inclined column block 12 on the left closing plate 8 will be inserted into the circular hole of the push plate 7, so that the circular hole of the push plate 7 is blocked. At this time, the discharge valve 10 on the left is opened, and then the blocked push plate 7 pushes the closed plate 8 on the left to move to the left together. The precipitate and a small amount of solution mixed in the precipitate are pushed to the left to the discharge valve 10. In this way, the precipitate on the left side can be discharged out of the separation box 1 through the discharge valve 10 on the left. Initially, the push plate 7 is set to be unclosed to avoid most of the solution being pushed out together. The push plate 7 is closed again when it is close to the discharge valve 10 to avoid most of the precipitate from overflowing to the right side of the push plate 7 through the circular hole of the push plate 7 during the squeezing and pushing out of the precipitate.

[0038] In the process of pushing out the precipitate on the left side, solid impurities in the sodium tungstate solution newly entering the separation box 1 simultaneously form a precipitate on the right side of the push plate 7. When the separation box 1 is full, the liquid phase of the sodium tungstate solution flows out through the right feed pipe 2. The baffle 4 prevents the sodium tungstate solution from flowing directly from the top to the right feed pipe 2 without passing through the bottom precipitate. The filter plate 301 further filters the impurities when the liquid phase flows out.

[0039] After the left side sediment is discharged, after a period of time, the output shaft of the motor 5 is controlled to drive the screw 6 to reverse. Similarly, the sediment on the right side can be pushed out through the right discharge valve 10, and the above operation is repeated.

[0040] In the process of the push plate 7 pushing the closing plate 8 to move, the closing plate 8 drives the U-shaped slide bar 9 on the same side to slide synchronously, and the U-shaped slide bar 9 drives the pull frame 13 on the same side to slide synchronously, so that the tension spring 15 on the same side is stretched, and when the push plate 7 moves back and resets, the push plate 7 gradually separates from the closing plate 8, and under the reset action of the tension spring 15, the U-shaped slide bar 9 drives the closing plate 8 to slide in the opposite direction and reset. When resetting, the one-way valve 11 is opened unidirectionally by the negative pressure, and the outside air enters the separation box 1 in one direction through the one-way valve 11.

[0041] During the above-mentioned process of the push plate 7 moving back and resetting, when the push plate 7 is separated from the closing plate 8, since the length of the inclined column blocks 12 on the same vertical line gradually increases from bottom to top, the circular holes of the push plate 7 are opened in sequence from bottom to top, so that the solution on one side of the push plate 7 slowly flows to the other side of the push plate 7.

[0042] Before solid-liquid separation, the initial position of the closing plate 8 can also be adjusted to adjust the position of the blocked hole of the push plate 7, and then the amount of sediment pushed out and the amount of a small amount of solution mixed in can be adjusted according to the sediment content to avoid waste caused by excessive amount of solution pushed out. The specific operation is as follows: first rotate the nut 14 forward or reverse as needed to make the U-shaped slide bar 9 slide to the left or right along the pull frame 13, so that the position of the closing plate 8 is adjusted to the left or right. The less the sediment accumulates, the closer the closing plate 8 is adjusted to the adjacent discharge valve 10 side.

[0043] In summary, the present invention, through the arrangement of components such as the motor 5, the screw 6, the push plate 7 and the closing plate 8, can discharge the solid precipitate without pausing the flow of the sodium tungstate solution in the subsequent discharge process, that is, it does not affect the progress of the solid-liquid separation, thereby ensuring the solid-liquid separation efficiency of the sodium tungstate solution.

[0044] The present invention provides a pull frame 13 and a nut 14 so that the position of the hole blocked by the closing plate 8 of the push plate 7 can be adjusted, thereby adjusting the amount of sediment pushed out and the amount of a small amount of solution mixed in according to the sediment content, avoiding waste caused by excessive amount of solution pushed out.

[0045] The present invention utilizes the arrangement in which the length of the inclined column block 12 gradually increases from bottom to top, so that the push plate 7 slowly separates from the inclined column block 12 when it is reset, allowing the solution on one side of the push plate 7 to slowly flow to the other side, thereby preventing the circular holes of the push plate 7 from opening at the same time, causing the solution to quickly flow into the other side of the push plate 7, thereby destroying the formed precipitate.

[0046] Combined with attachment Figure 5 , and also includes a guide frame 16 symmetrically distributed along the left and right sides of the separation box 1, the guide frame 16 is slidably connected to the separation box 1, and the guide frame 16 is movably connected to the valve stem of the adjacent discharge valve 10, and the side of the closing plate 8 close to the adjacent guide frame 16 and the side of the pulling frame 13 close to the adjacent guide frame 16 are fixedly connected with elastic pieces 17, and the closing plate 8 pulls the guide frame 16 to slide together through the elastic pieces 17 thereon, so that the discharge valve 10 is automatically closed, and the pulling frame 13 pulls the guide frame 16 to slide together through the elastic pieces 17 thereon, so that the discharge valve 10 is automatically opened, so that the discharge valve 10 is gradually automatically closed, and the guide frame 16 is close to the adjacent closing plate 8 and the side close to the adjacent pulling frame 13. A first card groove 171 is provided, and the first card groove 171 is limitedly matched with the adjacent elastic piece 17.

[0047] Initially, the spring piece 17 of the pull rack 13 is stuck in the first slot 171 on the outside of the adjacent guide rack 16. When the pull rack 13 moves outward, the pull rack 13 pulls the guide rack 16 to slide outward together through the spring piece 17, thereby pushing the valve stem of the discharge valve 10 to rotate, so that the discharge valve 10 is gradually opened automatically. When the guide rack 16 moves to be blocked by the separation box 1, the pull rack 13 continues to move outward, so that the spring piece 17 thereon is disengaged from the guide rack 16, and at this time the discharge valve 10 is completely opened.

[0048] During the outward movement of the above-mentioned pulling frame 13, the closing plate 8 is driven to move outward through the U-shaped sliding rod 9, and the closing plate 8 drives the spring piece 17 thereon to move to the first card groove 171 on the inner side of the adjacent guide frame 16. When the closing plate 8 moves back and resets, the closing plate 8 pulls the guide frame 16 to slide inward and reset through the spring piece 17 thereon, thereby pulling the valve stem of the discharge valve 10 to rotate in the opposite direction, so that the discharge valve 10 is gradually closed automatically. When the guide frame 16 moves to be blocked by the separation box 1, the closing plate 8 continues to slide inward, so that the spring piece 17 thereon is disengaged from the guide frame 16. At this time, the discharge valve 10 is completely closed.

[0049] In summary, the present invention can automatically and quickly open the discharge valve 10 when the sediment starts to be pushed out, and can automatically and quickly close the discharge valve 10 when the pushing is completed and ready to return to its position, to prevent the discharge valve 10 from closing in time, resulting in negative pressure backflow of the pushed sediment.

[0050] Combined with attachment Figure 6 To the attached Figure 7 , and also includes two card plates 18, which are slidably connected to the adjacent closing plates 8, and a first spring 19 is fixedly connected between the card plates 18 and the adjacent closing plates 8, and a plurality of second card slots 20 are symmetrically distributed along the card plates 18 at the bottom of the fixed frame 3. The second card slots 20 are used to limit the adjacent card plates 18, thereby limiting the closing plates 8. The left and right sides of the upper part of the push plate 7 are fixed with wedge blocks 21 symmetrically distributed along the push plate 7. The wedge blocks 21 move horizontally and squeeze and fit with the adjacent card plates 18 on the same side to release the limit on the closing plate 8.

[0051] If there is a small amount of sediment that is difficult to squeeze out between the push plate 7 and the closing plate 8 when the push plate 7 is close to the closing plate 8, the push plate 7 will push the closing plate 8 to move together through the sediment when the push plate 7 is not in contact with the closing plate 8. As a result, during the pushing process, most of the circular holes of the push plate 7 are not closed, causing most of the sediment to flow back through the circular holes, ultimately reducing the separation efficiency. To avoid this situation, the specific operations are as follows:

[0052] When the push plate 7 drives the wedge block 21 to return to its original position, the wedge block 21 disengages from the card plate 18, and the first spring 19 returns to drive the card plate 18 to slide upward and snap into the corresponding second slot 20.

[0053] In summary, the present invention performs an initial limit on the closing plate 8 so that the push plate 7 is completely fitted with the closing plate 8, that is, the push plate 7 is completely closed before moving together, preventing the push plate 7 from pushing out the precipitate before it is closed, thereby avoiding the reverse backflow of the precipitate during the pushing process, and effectively ensuring the efficiency of solid-liquid separation of the sodium tungstate solution.

[0054] Combined with attachment Figure 8 , also includes a rotating rack 22 symmetrically distributed along the left and right sides of the separation box 1, a total of four rotating racks 22, the rotating rack 22 is rotatably connected to the separation box 1, and the rotating rack 22 is threadedly connected to the adjacent U-shaped slide rod 9.

[0055] When the U-shaped slide bar 9 moves, it drives the rotating rack 22 to rotate, so that the sediment is stirred and evenly mixed with the mixed solution when discharged, achieving the effect of diluting the sediment, which is conducive to the rapid discharge of the sediment with weaker fluidity along with the solution with stronger fluidity.

[0056] Combined with attachment Figure 9 , it also includes a second spring 23, the two ends of the second spring 23 are fixedly connected to the filter plate 301 and the fixed frame 3 on the right side respectively, the filter plate 301 is connected to the wedge plate 24 in the up and down sliding direction, the wedge surface of the wedge plate 24 contacts the push plate 7, when the push plate 7 moves to the right, the filter plate 301 is pushed to the right through the wedge plate 24, and when the push plate 7 moves to the left and disengages from the wedge plate 24, the second spring 23 pushes the filter plate 301 to slide to the left, and the filter plate 301 slides left and right, which can shake off impurities. A third spring 25 is fixedly connected between the wedge plate 24 and the filter plate 301.

[0057] When the push plate 7 moves to the right and contacts the wedge plate 24, the push plate 7 first drives the wedge plate 24 to move to the right, thereby driving the filter plate 301 to move to the right, and the second spring 23 is compressed. When the second spring 23 is compressed to the limit, the filter plate 301 cannot move. At this time, the push plate 7 squeezes the wedge plate 24 to slide upward, and the third spring 25 is compressed. When the push plate 7 passes over the wedge plate 24 to the right, the third spring 25 is reset, driving the wedge plate 24 to move downward and reset. The second spring 23 is reset, driving the filter plate 301 to move to the left and reset. In this way, the filter plate 301 automatically moves left and right, and the filtered matter attached to the filter plate 301 is shaken off, preventing the filter plate 301 from being blocked and affecting the filtering effect.

[0058] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes may be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A solid-liquid separation device for producing sodium tungstate solution, comprising a separation box (1), wherein the separation box (1) is connected to a feed pipe (2) symmetrically distributed along the transverse direction of the separation box (1), and wherein: The utility model also includes two fixed frames (3), the fixed frame (3) being fixedly connected to one side of the separation box (1) close to the material pipe (2), the separation box (1) being fixedly connected to a motor (5) symmetrically distributed along the longitudinal direction of the separation box (1), the separation box (1) being rotatably connected to a screw (6) symmetrically distributed along the longitudinal direction of the separation box (1), the screw (6) being fixedly connected to the adjacent motor (5), the symmetrically distributed screws (6) being threadedly connected to a push plate (7), the push plate (7) being slidably connected to the separation box (1), the fixed frame (3) being horizontally slidably connected to a closing plate (8), the push plate (7) The moving device contacts the closing plate (8), the closing plate (8) is provided with a plurality of through grooves, the separation box (1) is fixedly connected with a discharge valve (10) symmetrically distributed along the transverse direction of the separation box (1), the separation box (1) is connected with a one-way valve (11) symmetrically distributed along the transverse direction of the separation box (1), the closing plate (8) is fixedly connected with a plurality of inclined column blocks (12) distributed at equal intervals, the push plate (7) is provided with a circular hole corresponding to the inclined column blocks (12), the separation box (1) is provided with a reset component for controlling the reset of the closing plate (8), and the U-shaped slide bar (9) is provided with an adjustment component for adjusting the initial position of the closing plate (8); The lengths of the inclined column blocks (12) located on the same vertical line gradually increase from bottom to top.

2. The solid-liquid separation device for producing sodium tungstate solution according to claim 1, characterized in that: It also includes a filter plate (301), and the filter plate (301) is slidably connected to any one of the fixed frames (3).

3. The solid-liquid separation device for producing sodium tungstate solution according to claim 2, characterized in that: It also includes a baffle (4), which is fixedly connected to the separation box (1), and the baffle (4) is located between the two fixed frames (3).

4. The solid-liquid separation device for producing sodium tungstate solution according to claim 3, characterized in that: The reset assembly includes the U-shaped slide rod (9) distributed laterally and symmetrically along the separation box (1), the U-shaped slide rod (9) is slidably connected to the separation box (1), the U-shaped slide rod (9) is fixedly connected to the adjacent closing plate (8), and a tension spring (15) is fixedly connected between the pull frame (13) and the separation box (1).

5. The solid-liquid separation device for producing sodium tungstate solution according to claim 4, characterized in that: The adjustment assembly includes the pull frame (13), the pull frame (13) is slidably connected to the adjacent U-shaped slide bar (9), the U-shaped slide bar (9) is rotatably connected to a nut (14), and the nut (14) is threadedly connected to the adjacent pull frame (13).

6. The solid-liquid separation device for producing sodium tungstate solution according to claim 5, characterized in that: The invention also includes a guide frame (16) symmetrically distributed along the transverse direction of the separation box (1), wherein the guide frame (16) is slidably connected to the separation box (1), and the guide frame (16) is movably connected to the valve stem of the adjacent discharge valve (10). The side of the closing plate (8) close to the adjacent guide frame (16) and the side of the pulling frame (13) close to the adjacent guide frame (16) are fixedly connected with a spring piece (17). The side of the guide frame (16) close to the adjacent closing plate (8) and the side close to the adjacent pulling frame (13) are both provided with a first card slot (171), and the first card slot (171) is limitedly matched with the adjacent spring piece (17).

7. The solid-liquid separation device for producing sodium tungstate solution according to claim 6, characterized in that: The invention also includes the same number of card plates (18) as the closing plate (8), the card plates (18) are slidably connected to the corresponding closing plates (8), and the card plates (18) are fixedly connected to the adjacent closing plates (8) with first springs (19) symmetrically distributed along the longitudinal direction of the card plates (18). The fixed frame (3) is provided with a plurality of second card slots (20) distributed at equal intervals, and the second card slots (20) are used to limit the adjacent card plates (18). The push plate (7) is fixed with wedge blocks (21) symmetrically distributed along the push plate (7), and the wedge blocks (21) move horizontally to squeeze and fit with the adjacent card plates (18) on the same side.

8. The solid-liquid separation device for producing sodium tungstate solution according to claim 7, characterized in that: It also includes a rotating rack (22) symmetrically distributed along the separation box (1), the rotating rack (22) is rotatably connected to the separation box (1), and the rotating rack (22) is threadedly connected to the adjacent U-shaped sliding rod (9).

9. The solid-liquid separation device for producing sodium tungstate solution according to claim 8, characterized in that: The filter plate (301) and the filter plate (301) are fixedly connected at both ends thereof to the filter plate (301) and the adjacent fixed frame (3). The filter plate (301) is vertically slidably connected to a wedge plate (24). The wedge surface of the wedge plate (24) contacts the push plate (7). A third spring (25) is fixedly connected between the wedge plate (24) and the filter plate (301).

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