Solid-liquid separation device for producing sodium tungstate solution

Abstract

The invention discloses a solid-liquid separation device for sodium tungstate solution production, and relates to the technical field of separation, the solid-liquid separation device comprises a separation box, the separation box is communicated with material pipes symmetrically distributed in the transverse direction of the separation box, and one side, close to the material pipes, of the separation box is fixedly connected with two fixing frames; the separation box is fixedly connected with motors which are symmetrically distributed in the longitudinal direction of the separation box, the separation box is rotationally connected with screw rods which are symmetrically distributed in the longitudinal direction of the separation box in a penetrating mode, the screw rods are fixedly connected with the adjacent motors, and a push plate is in threaded connection between the symmetrically distributed screw rods; the push plate is slidably connected with the separation box, and the fixing frame is horizontally and slidably connected with a closing plate. Through the arrangement of the motor, the screw rod, the push plate, the closing plate and other parts, in the subsequent precipitation discharging process, the discharging of solid precipitates can be realized without pausing the inflow and outflow of a sodium tungstate solution.

Description

Technical Field

[0001] The 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 solution of 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 to 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 precipitation of impurities, and then retain the impurities through precipitation filtration and discharge the filtered liquid phase.

[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, so as to clean up the precipitated impurities in the separation device, thus slowing down the progress of solid-liquid separation and affecting 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] A solid-liquid separation device for producing sodium tungstate solution, comprising a separation box, the separation box is connected with a material pipe symmetrically distributed along the transverse direction of the separation box, the separation box is fixedly connected with two fixed frames on one side close to the material pipe, the separation box is fixedly connected with a motor symmetrically distributed along the longitudinal direction of the separation box, the separation box is rotatably connected with 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, the fixed frame is horizontally slidably connected with a closing plate, the push plate moves and contacts with the closing plate, the closing plate is provided with a plurality of through grooves, the separation box is fixedly connected with a discharge valve symmetrically distributed along the transverse direction of the separation box, the separation box is connected with a one-way valve symmetrically distributed along the transverse direction of the separation box, the closing plate is fixedly connected with a plurality of equally spaced inclined column blocks, the push plate is provided with a circular hole corresponding to the inclined column blocks, the separation box is provided with a reset component for controlling the reset of the closing plate, and the U-shaped slide bar is provided with an adjustment component for adjusting the initial position of the closing plate.

[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 bar symmetrically distributed along the separation box, the U-shaped slide bar is slidably connected to the separation box, the U-shaped slide bar 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 frame symmetrically distributed along the separation box, the guide frame is slidably connected to the separation box, the guide frame is movably connected to the valve stem of the adjacent discharge valve, the side of the closing plate close to the adjacent guide frame and the side of the pulling frame close to the adjacent guide frame are fixedly connected with spring plates, the side of the guide frame close to the adjacent closing plate and the side close to the adjacent pulling frame are provided with a first card slot, and the first card slot is matched with the adjacent spring plate to limit the position.

[0013] More preferably, it also includes the same number of card plates as the closed plates, the card plates are slidably connected to the corresponding closed plates, the card plates and the adjacent closed 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 fixedly connected 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, it also includes a second spring, the two ends of which are fixedly connected to the filter plate and the adjacent fixed frame respectively, the filter plate is vertically slidably connected with 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: the present invention can discharge solid precipitates without pausing the flow of sodium tungstate solution in the subsequent discharge of precipitates through the arrangement of components such as a motor, a screw, a push plate and a closing plate, that is, it does not affect the progress of solid-liquid separation, thereby ensuring the solid-liquid separation efficiency of the sodium tungstate solution.

[0017] The present invention arranges 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, so that 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, avoiding waste caused by excessive amount of solution pushed out.

[0018] The present invention utilizes the setting that 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 resetting, allowing the solution on one side of the push plate to slowly flow to the other side, avoiding the circular holes of the push plate opening at the same time, causing the solution to quickly flow into the other side of the push plate, so that the formed precipitation is destroyed.

[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 original position, so as to prevent the discharge valve from being closed in time, resulting in negative pressure backflow of the pushed sediment.

[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, so as to prevent the push plate from pushing out the precipitate before it is closed, thereby avoiding reverse reflux of the precipitate during the pushing out 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 when discharged, achieving the effect of diluting the sediment, which is conducive to the rapid discharge of the sediment with weaker fluidity together with the solution with stronger fluidity.

[0022] The invention realizes automatic left-right movement of the filter plate by arranging the second spring, the wedge plate and the third spring, so that the filter material attached to the filter plate is shaken off, and the filter plate is prevented 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 three-dimensional structural schematic diagram of the separation box, material pipe, fixing frame and other components of the present invention.

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

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

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

[0028] Figure 6 It is a three-dimensional structural schematic diagram of components such as the push plate and the wedge block 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 three-dimensional structural schematic diagram of the closing plate, U-shaped sliding rod, rotating frame and other components of the present invention.

[0031] Fig. 9 It is a three-dimensional structural schematic diagram 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. spring; 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 be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work 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 Attachment 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, two fixed frames 3 are fixedly connected to the side 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 with 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, the baffle 4 is located between the two fixed frames 3, and a motor 5 symmetrically distributed along the front and back of the separation box 1 is fixedly connected to the right side of the outside of the separation box 1, and the separation box 1 is horizontally through-rotatably connected with a screw 6 symmetrically distributed along the front and back of the separation box 1, the screw 6 is fixedly connected to the adjacent output shaft of the motor 5, and a push plate 7 is threadedly connected between the symmetrically distributed screws 6, and the push plate 7 is slidably connected to the separation box 1, and the bottom of the fixed frame 3 is slidably connected with a closing plate 8 in the left and right directions, and the push plate 7 moves to contact the closing plate 8, and the closing plate 8 has a plurality of through grooves, the separation box 1 is horizontally slidably connected to a U-shaped slide bar 9 symmetrically distributed along 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 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 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 near the push plate 7. There are a number of 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 frame 13 is slidably connected to the U-shaped slide bar 9 in the left and right directions. A nut 14 is rotatably connected to the middle of the U-shaped slide bar 9. The nut 14 is threadedly connected to the adjacent pull frame 13. A tension spring 15 is fixedly connected between the pull frame 13 and the separation box 1.

[0035] First, the sodium tungstate solution added with a specific chemical reagent enters the separation box 1 through the material pipe 2 on the left, and flows to the lower part of the separation box 1 along the fixed frame 3 on the left, 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 specific chemical reagents 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 movement to the left, 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 with the closing plate 8 on the left, the inclined column block 12 on the closing plate 8 on the left 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 push plate 7 with the blocked hole pushes the closing plate 8 on the left to move to the left together, and 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 in order to avoid most of the solution being pushed out together, and 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 in the process of squeezing out the precipitate.

[0038] In the process of pushing out the precipitate on the left side, the 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, and the liquid phase of the sodium tungstate solution flows out through the right feed pipe 2 when the separation box 1 is full. 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 precipitation, and 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 side 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 pulling 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 to reset, 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 to reset. When resetting, the one-way valve 11 is opened unidirectionally by the negative pressure, and the outside air enters the separation box 1 through the one-way valve 11 in one direction.

[0041] During the 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 block 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 amount of sediment accumulated, the closer the closing plate 8 is adjusted to the adjacent discharge valve 10 side.

[0043] In summary, the present invention can discharge solid precipitates without pausing the flow of sodium tungstate solution in the subsequent discharge of precipitates through the arrangement of components such as the motor 5, the screw 6, the push plate 7 and the closing plate 8, i.e., it does not affect the progress of 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, so that 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, avoiding waste caused by excessive amount of solution pushed out.

[0045] The present invention utilizes the setting that the length of the inclined column block 12 increases gradually from bottom to top, so that the push plate 7 slowly separates from the inclined column block 12 when resetting, allowing the solution on one side of the push plate 7 to slowly flow to the other side, avoiding 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, so that the formed precipitation is destroyed.

[0046] Combined with Figure 5 , and also includes a guide frame 16 symmetrically distributed along the separation box 1, the guide frame 16 is slidably connected to the separation box 1, 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 spring plates 17, the closing plate 8 pulls the guide frame 16 to slide together through the spring plates 17 thereon, so that the discharge valve 10 is automatically closed, the pulling frame 13 pulls the guide frame 16 to slide together through the spring plates 17 thereon, so that the discharge valve 10 is automatically opened, so that the discharge valve 10 is gradually automatically closed, and 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 groove 171, and the first card groove 171 is limitedly matched with the adjacent spring plate 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 frame 16. When the pull rack 13 moves outward, the pull rack 13 pulls the guide frame 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 frame 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 frame 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 sheet 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 sheet 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 sheet 17 thereon is disengaged from the guide frame 16, and the discharge valve 10 is completely closed at this time.

[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 original position, so as to prevent the discharge valve 10 from being closed in time, resulting in negative pressure backflow of the pushed sediment.

[0050] Combined with Figure 6 To Attachment Figure 7 , and also includes two card plates 18, which are slidably connected to the adjacent closing plates 8, and a first spring 19 symmetrically distributed along the front and back of the card plates 18 is fixedly connected between the card plates 18 and the adjacent closing plates 8. A plurality of second card slots 20 equidistantly distributed are opened at the bottom of the fixed frame 3, and 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 fixedly connected with wedge blocks 21 symmetrically distributed along the front and back of the push plate 7. The wedge blocks 21 move horizontally and are squeezed and matched with the adjacent card plates 18 on the same side, so as to release the limitation of 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, resulting in that most of the circular holes of the push plate 7 are not closed during the pushing process, so that most of the sediment flows back through the circular holes, which eventually reduces the separation efficiency. To avoid this situation, the specific operations are as follows: When the push plate 7 drives the wedge block 21 to return to its original position, the wedge block 21 is disengaged from the card plate 18, and the first spring 19 is reset to drive the card plate 18 to slide upward and snap into the corresponding second card slot 20.

[0052] In summary, the present invention performs initial positioning of 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 reverse reflux of the precipitate during the pushing process, and effectively ensuring the efficiency of solid-liquid separation of the sodium tungstate solution.

[0053] Combined with Figure 8 , and also includes a rotating rack 22 symmetrically distributed along the separation box 1, with 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 sliding rod 9.

[0054] When the U-shaped slide bar 9 moves, it drives the rotating frame 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.

[0055] Combined with Fig. 9 , and 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 slidably connected with a wedge plate 24 along the up and down directions, 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 slide to the right through the wedge plate 24, when the push plate 7 moves to the left and separates from the wedge plate 24, the second spring 23 pushes the filter plate 301 to slide to the left, the filter plate 301 slides left and right, and impurities can be shaken off, and a third spring 25 is fixedly connected between the wedge plate 24 and the filter plate 301.

[0056] 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 together, thereby driving the filter plate 301 to move to the right together, 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 to drive the wedge plate 24 to move downward and reset. The second spring 23 is reset to drive 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.

[0057] 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), wherein: The machine also comprises two fixed frames (3), the fixed frames (3) being fixedly connected to a 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 rod (6) symmetrically distributed along the longitudinal direction of the separation box (1), the screw rod (6) being fixedly connected to adjacent motors (5), a push plate (7) being threadedly connected between the symmetrically distributed screw rods (6), 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 push plate (7) is provided with a plurality of through grooves, the separation box (1) is fixedly connected with a discharge valve (10) which is symmetrically distributed along the transverse direction of the separation box (1), the separation box (1) is connected with a one-way valve (11) which is 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) which are distributed at equal intervals, the push plate (7) is provided with a circular hole corresponding to the inclined column block (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).

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

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

4. A solid-liquid separation device for producing sodium tungstate solution according to claim 3, characterized in that: The lengths of the inclined column blocks (12) located on the same vertical line gradually increase from bottom to top.

5. A solid-liquid separation device for producing sodium tungstate solution according to claim 4, characterized in that: The reset assembly includes a U-shaped slide bar (9) symmetrically distributed along the separation box (1), the U-shaped slide bar (9) is slidably connected to the separation box (1), the U-shaped slide bar (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).

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

7. A solid-liquid separation device for producing sodium tungstate solution according to claim 6, characterized in that: It also includes a guide frame (16) symmetrically distributed along the separation box (1), the guide frame (16) is slidably connected to the separation box (1), 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 both fixedly connected with a spring sheet (17), and 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 slot (171), and the first slot (171) is limitedly matched with the adjacent spring sheet (17).

8. A solid-liquid separation device for producing sodium tungstate solution according to claim 7, characterized in that: It also includes the same number of card plates (18) as the closing plates (8), the card plates (18) being slidably connected to the corresponding closing plates (8), a first spring (19) being fixedly connected between the card plates (18) and the adjacent closing plates (8) and being symmetrically distributed along the longitudinal direction of the card plates (18), the fixed frame (3) being provided with a plurality of second card slots (20) distributed at equal intervals, the second card slots (20) being used to limit the adjacent card plates (18), the push plate (7) being fixedly connected with wedge blocks (21) symmetrically distributed along the push plate (7), the wedge blocks (21) being horizontally moved to be pressed and matched with the adjacent card plates (18) on the same side.

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

10. A solid-liquid separation device for producing sodium tungstate solution according to claim 9, characterized in that: The filter plate (301) further comprises a second spring (23), the two ends of the second spring (23) being fixedly connected to the filter plate (301) and the adjacent fixed frame (3) respectively; the filter plate (301) is vertically slidably connected to a wedge plate (24); the wedge surface of the wedge plate (24) is in contact with the push plate (7); and a third spring (25) is fixedly connected between the wedge plate (24) and the filter plate (301).

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