Solid-liquid separation device for recycling chemical wastes

Abstract

The invention relates to a solid-liquid separation device for chemical waste reutilization, which comprises a base, a pretreatment box fixedly arranged on a support rod at the top of the base, a support plate fixedly arranged below the support rod, a separation box fixedly arranged at the top of the support plate, a centrifugal cylinder rotatably connected in the separation box, and a communicating pipe fixedly arranged at the bottom of the pretreatment box. The communicating pipe penetrates and extends into the separation box and is rotationally connected with the top of the centrifugal barrel, a baffle is slidably connected into the communicating pipe, a reciprocating assembly used for intermittent left-right movement of a baffle is arranged on one side of the top of the separation box, and a driving mechanism used for jointly driving the centrifugal barrel and the reciprocating assembly is arranged on one side of the top of the base; and a lifting assembly for moving the scraping plate up and down is arranged in the centrifugal cylinder. According to the centrifugal machine, waste can be intermittently and regularly added into the centrifugal barrel during centrifugation, the load during centrifugation is reduced, solids attached to the interior of the centrifugal barrel can be continuously scraped away during centrifugation, filter holes are prevented from being blocked, and the centrifugation efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of solid-liquid separation, and particularly relates to a solid-liquid separation device for the reuse of chemical waste. Background Art

[0002] Chemical waste (such as waste catalysts, waste solvents, metal-containing waste liquids, etc.) often contains recoverable metals (such as copper, nickel, precious metals), organic substances (such as solvents, oils and fats), or inorganic salts. Through solid-liquid separation (such as filtration, centrifugation, membrane separation, etc.), high-value components in the solid can be extracted, or solvents and chemical substances in the liquid can be recovered.

[0003] For existing solid-liquid separation devices, in order to improve the separation efficiency, generally, after filtering out larger impurities in the waste through a filter screen, the waste is then subjected to centrifugal filtration separation. During centrifugation, the addition frequency of the waste cannot be controlled, which easily causes a relatively high load on the centrifuge cylinder during rotation and centrifugation. Moreover, the solids in the waste are also easily adsorbed on the inner wall of the centrifuge cylinder, easily causing the filter holes on the centrifuge cylinder to be blocked, affecting the centrifugal separation efficiency. Based on this, a solid-liquid separation device for the reuse of chemical waste is now proposed. Summary of the Invention

[0004] The present invention provides a solid-liquid separation device for the reuse of chemical waste to solve the problems in the above-mentioned technical background that in the existing solid-liquid separation, the waste cannot be added intermittently and in batches during centrifugation, which easily causes a relatively high load on the centrifuge cylinder during rotation and centrifugation, and the solids in the waste are also easily adsorbed on the inner wall of the centrifuge cylinder, easily causing the filter holes on the centrifuge cylinder to be blocked, affecting the centrifugal separation efficiency.

[0005] To solve the above technical problems, the present invention adopts the following technical solutions: A solid-liquid separation device for the reuse of chemical waste, including a base, a support rod is fixedly provided at the top of the base, a pretreatment tank is fixedly provided at the top of the support rod, a support plate is fixedly provided below the support rod, a separation tank is fixedly provided at the top of the support plate, a centrifuge cylinder is rotatably connected in the separation tank, a connecting pipe is fixedly provided at the bottom of the pretreatment tank, the connecting pipe penetrates and extends into the separation tank and is rotatably connected to the top of the centrifuge cylinder, a baffle is slidably connected in the connecting pipe, a reciprocating assembly for moving the block left and right is provided on one side of the top of the separation tank, a driving mechanism for jointly driving the centrifuge cylinder and the reciprocating assembly is provided on one side of the top of the base, a scraper is movably provided in the centrifuge cylinder, and a lifting assembly for moving the scraper up and down is provided in the centrifuge cylinder.

[0006] Preferably, the reciprocating assembly includes a first rotating rod rotatably connected to one side of the top of the support plate. A turntable is fixedly connected to the top of the first rotating rod. A guide rod is fixedly provided on one side of the top of the turntable. One end of the baffle close to the turntable penetrates through the connecting pipe and is fixedly connected to a guide plate. A guide groove is formed in the guide plate, and the guide rod is slidably connected in the guide groove.

[0007] Preferably, the driving mechanism includes a driving motor fixedly provided on the top of the base. The output shaft of the driving motor is fixedly connected to a rotating shaft, and the rotating shaft penetrates and extends into the separation box and is fixedly connected to the bottom of the centrifugal cylinder.

[0008] Preferably, a second rotating rod is rotatably connected to one side of the top of the base. A first gear is fixedly sleeved on the second rotating rod. The first gear is meshed with a second gear, and the second gear is fixedly sleeved on the rotating shaft. A third rotating rod is rotatably connected to the top of the base. Transmission wheels are fixedly sleeved on both the third rotating rod and the second rotating rod. The two transmission wheels are connected by a transmission belt. The top of the third rotating rod penetrates through the support plate and is fixedly sleeved with a half gear. A first toothed ring is fixedly sleeved on the outer wall of the turntable, and the half gear is meshed with the first toothed ring.

[0009] Preferably, the diameter of the first gear is larger than the diameter of the second gear, and the diameter of the first toothed ring is the same as the diameter of the half gear.

[0010] Preferably, the lifting assembly includes a reciprocating lead screw rotatably connected in the separation box. A moving seat is threadedly connected to the reciprocating lead screw, and the moving seat is fixedly provided on the scraper.

[0011] Preferably, the top of the reciprocating lead screw penetrates through the centrifugal cylinder and is fixedly sleeved with a third gear. A second toothed ring is fixedly provided on the top of the separation box, and the third gear is meshed with the second toothed ring.

[0012] Preferably, the number of the reciprocating lead screws is four, and the reciprocating lead screws are evenly distributed in the centrifugal cylinder. The scraper is arranged as a hollow annular plate.

[0013] Preferably, a transmission box is fixedly provided on the top of the pretreatment box. Filter holes are provided at the bottom of the transmission box. A conveying screw is rotatably connected in the transmission box. One end of the conveying shaft of the conveying screw penetrates through the transmission box and is fixedly connected to a rotating motor, and the rotating motor is fixedly provided on the outer wall of the transmission box. An outlet pipe is fixedly provided on one side of the bottom of the transmission box.

[0014] The beneficial effects of the solid-liquid separation device for chemical waste recycling of the present invention:

[0015] (1) While the present invention performs centrifugation by driving a rotating shaft and a centrifuge cylinder to rotate through a driving motor, a second gear on the rotating shaft meshes with a first gear to rotate, the first gear drives a second rotating rod to rotate, and under the driving action of a transmission wheel and a transmission belt, a third rotating rod and a half gear rotate. The half gear meshes with a first toothed ring to rotate, thereby driving the turntable and the guide rod on its top to rotate intermittently. While rotating, the guide rod continuously slides in the guide groove and simultaneously drives the guide plate to move left and right, thereby driving the baffle plate to move left and right continuously, sealing and opening the communicating pipe, so as to achieve the effect of intermittently feeding materials into the centrifuge cylinder, reducing the load of the centrifuge cylinder during centrifugation, and improving the centrifugation efficiency.

[0016] (2) While the centrifuge cylinder of the present invention rotates, it drives the reciprocating screw rod inside the centrifuge cylinder and the third gear on its top to revolve along with the centrifuge cylinder. The third gear on the top of the reciprocating screw rod continuously meshes with the second toothed ring during revolution, so that the third gear simultaneously drives the reciprocating screw rod to rotate continuously. The rotation of the reciprocating screw rod causes the moving seat to move up and down continuously, thereby driving the scraper to move up and down continuously, scraping the solids attached to the inner wall of the centrifuge cylinder, preventing it from blocking the filter holes, further improving the centrifugation efficiency and effect, and enabling better separation of solid and liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the front view structural schematic diagram of the present invention;

[0018] Figure 2 is Figure 1 the enlarged schematic diagram at A in

[0019] Figure 3 is Figure 1 the enlarged schematic diagram at B in

[0020] Figure 4 is the top view schematic diagram of the connection structure between the baffle plate and the turntable of the present invention;

[0021] Figure 5 is the top view schematic diagram of the connection structure between the scraper and the centrifuge cylinder 6 of the present invention;

[0022] Figure 6 is the top view schematic diagram of the connection structure between the third gear and the second toothed ring of the present invention;

[0023] Figure 7 is the front view schematic diagram of the overall structure of the present invention.

[0024] In the figure: 1. Base, 2. Support rod, 3. Pretreatment box, 4. Support plate, 5. Separation box, 6. Centrifugal cylinder, 7. Connecting pipe, 8. Scraper, 9. Baffle plate, 10. First rotating rod, 11. Turntable, 12. Guide rod, 13. Guide plate, 14. Guide groove, 15. Driving motor, 16. Rotating shaft, 17. Second rotating rod, 18. First gear, 19. Second gear, 20. Third rotating rod, 21. Transmission wheel, 22. Transmission belt, 23. Half gear, 24. First toothed ring, 25. Reciprocating lead screw, 26. Moving seat, 27. Third gear, 28. Second toothed ring, 29. Transmission box, 30. Filter hole, 31. Conveyor screw, 32. Rotating motor, 33. Discharge pipe. Detailed implementation manner

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0026] As Figures 1-7 shown, a solid-liquid separation device for the recycling of chemical waste includes a base 1. A support rod 2 is fixedly provided at the top of the base 1. A pretreatment box 3 is fixedly provided at the top of the support rod 2. A support plate 4 is fixedly provided below the support rod 2. A separation box 5 is fixedly provided at the top of the support plate 4. A liquid outlet pipe is fixedly provided at one side of the bottom of the separation box 5, and a control valve is provided on the liquid outlet pipe. A centrifugal cylinder 6 is rotatably connected in the separation box 5. A connecting pipe 7 is fixedly provided at the bottom of the pretreatment box 3. The connecting pipe 7 penetrates and extends into the separation box 5 and is rotatably connected to the top of the centrifugal cylinder 6. A baffle plate 9 is slidably connected in the connecting pipe 7. A reciprocating assembly for moving the baffle 9 left and right is provided on one side of the top of the separation box 5. A driving mechanism for jointly driving the centrifugal cylinder 6 and the reciprocating assembly is provided on one side of the top of the base 1. A scraper 8 is movably provided in the centrifugal cylinder 6. A lifting assembly for moving the scraper 8 up and down is provided in the centrifugal cylinder 6.

[0027] The reciprocating assembly includes a first rotating rod 10 rotatably connected to one side of the top of the support plate 4. A turntable 11 is fixedly connected to the top of the first rotating rod 10. A guide rod 12 is fixedly provided on one side of the top of the turntable 11. One end of the baffle 9 close to the turntable 11 penetrates through the connecting pipe 7 and is fixedly connected to a guide plate 13. A guide groove 14 is formed in the guide plate 13. The guide rod 12 is slidably connected in the guide groove 14.

[0028] By rotating the turntable 11 and the guide rod 12 on its top, the guide rod 12 continuously slides in the guide groove 14 while rotating, and continuously drives the guide plate 13 to move left and right while sliding in the guide groove 14, thereby driving the baffle 9 to continuously move left and right, thereby achieving the effect of sealing and connecting the connecting pipe 7, thereby achieving the effect of intermittent feeding into the centrifuge cylinder 6, reducing the load of the centrifuge cylinder during centrifugation.

[0029] The driving mechanism includes a driving motor 15 fixedly arranged on the top of the base 1 , and the output shaft of the driving motor 15 is fixedly connected to a rotating shaft 16 . The rotating shaft 16 extends through the separation box 5 and is fixedly connected to the bottom of the centrifugal cylinder 6 .

[0030] A second rotating rod 17 is rotatably connected to one side of the top of the base 1, and a first gear 18 is fixedly sleeved on the second rotating rod 17. The first gear 18 is meshed with a second gear 19, and the second gear 19 is fixedly sleeved on the rotating shaft 16. A third rotating rod 20 is rotatably connected to the top of the base 1, and a transmission wheel 21 is fixedly sleeved on both the third rotating rod 20 and the second rotating rod 17. The two transmission wheels 21 are connected by a transmission belt 22. The top of the third rotating rod 20 passes through the support plate 4 and is fixedly sleeved with a half gear 23. A first gear ring 24 is fixedly sleeved on the outer wall of the turntable 11, and the half gear 23 is meshed with the first gear ring 24.

[0031] By driving the motor 15 to drive the rotating shaft 16 and the centrifugal cylinder 6 to rotate for centrifugation, the second gear 19 on the rotating shaft 16 engages the first gear 18 to rotate, and the first gear 18 drives the second rotating rod 17 to rotate. Under the transmission action of the transmission wheel 21 and the transmission belt 22, the third rotating rod 20 and the half gear 23 rotate, and the half gear 23 engages the first ring gear 24 to rotate, thereby driving the turntable 11 to rotate, so as to achieve the effect of driving the centrifugal cylinder 6 to rotate and centrifuge while the baffle 9 continuously moves left and right, sealing and opening the connecting pipe 7, and achieving the effect of intermittent feeding into the centrifugal cylinder 6.

[0032] The diameter of the first gear 18 is larger than the diameter of the second gear 19. For example, the gear ratio of the first gear 18 to the second gear 19 can be set to 10:1, so that the rotation speed of the second rotating rod 17 and the third rotating rod 20 is much lower than the rotation speed of the rotating shaft 16, thereby reducing the rotation speed of the turntable 11 synchronously, reducing the opening and closing frequency of the baffle 9, and the diameter of the first ring gear 24 is the same as the diameter of the half gear 23. After the half gear 23 drives the first ring gear 24 to rotate 180, it can stay for a certain time and continue to rotate, so that the baffle 9 can stay for a certain time when opening or sealing the connecting pipe 7, which can not only ensure the amount of material fed into the centrifugal barrel 6, but also ensure the centrifugal time after feeding.

[0033] The lifting assembly includes a reciprocating lead screw 25 rotatably connected inside the separation box 5. A moving seat 26 is threadedly connected to the reciprocating lead screw 25. The moving seat 26 is fixedly arranged on the scraper 8. By rotating the reciprocating lead screw 25, the moving seat 26 continuously moves up and down reciprocally, thereby driving the scraper 8 to continuously move up and down, scraping the solids attached to the inner wall of the centrifuge cylinder 6 to prevent it from blocking the filter holes and affecting the efficiency and effect of centrifugation.

[0034] The top of the reciprocating lead screw 25 penetrates through the centrifuge cylinder 6 and is fixedly sleeved with a third gear 27. A second gear ring 28 is fixedly arranged on the top of the separation box 5. The third gear 27 is meshed and connected with the second gear ring 28.

[0035] While the centrifuge cylinder 6 is rotating, it drives the reciprocating lead screw 25 inside the centrifuge cylinder 6 and the third gear 27 at its top to revolve along with the centrifuge cylinder 6. While the third gear 27 at the top of the reciprocating lead screw 25 is revolving, under the continuous meshing action of the third gear 27 with the second gear ring 28, the third gear 27 simultaneously drives the reciprocating lead screw 25 to continuously rotate. Thus, without the need for other external force driving, the reciprocating lead screw 25 can rotate to drive the scraper 8 to continuously move up and down, scraping the solids attached to the inner wall of the centrifuge cylinder 6.

[0036] The number of the reciprocating lead screws 25 is set to four. The reciprocating lead screws 25 are evenly distributed inside the centrifuge cylinder 6 and are evenly distributed with the center of the centrifuge cylinder 6 as the center of the circle, supporting multiple parts of the scraper 8 and improving the stability of the scraper 8 when moving up and down. The scraper 8 is arranged as a hollow annular plate, and the connecting pipe 7 is above the hollow position of the scraper 8, which can achieve the effect of scraping the inner wall of the centrifuge cylinder 6 without affecting the addition of centrifugation materials into the centrifuge cylinder 6 by the connecting pipe 7.

[0037] A transmission box 29 is fixedly arranged on the top of the pretreatment box 3. The bottom of the transmission box 29 is provided with filter holes 30 for filtering the liquid in the waste. A conveying screw 31 is rotatably connected inside the transmission box 29. One end of the conveying shaft of the conveying screw 31 penetrates through the transmission box 29 and is fixedly connected with a rotating motor 32. The rotating motor 32 is fixedly arranged on the outer wall of the transmission box 29. One side of the bottom of the transmission box 29 is fixedly provided with a discharge pipe 33. One side of the top of the transmission box 29 is fixedly provided with a feed hopper, and the feed hopper is arranged at one end far from the discharge pipe 33. A hydraulic rod is fixedly arranged on one side of the transmission box 29 close to the discharge pipe 33. The end of the hydraulic rod is fixedly connected with a sealing plate, and the sealing plate is used to seal the top of the discharge pipe 33. By driving the movement of the sealing plate with the hydraulic rod, the sealing of the discharge pipe 33 is released, facilitating the discharge of the larger impurities filtered in the transmission box 29 from the transmission box 29.

[0038] During use, first add the waste to be separated from solid and liquid into the transfer box 29 from the feed hopper. The larger solid impurities in the waste are preliminarily filtered through the filter holes 30. The filtered liquid falls into the pretreatment box 3 below. The larger solid impurities move towards the discharge pipe 33 under the rotation of the conveying screw 31 and are finally discharged from the transfer box 29 through the discharge pipe 33. The preliminarily filtered liquid falls into the centrifugal cylinder 6 below from the connecting pipe 7. The driving motor 15 drives the rotating shaft 16 and the centrifugal cylinder 6 to rotate for centrifugation. At the same time, the second gear 19 on the rotating shaft 16 meshes with the first gear 18 to rotate and drives the second rotating rod 17 to rotate. Under the driving action of the transmission wheel 21 and the transmission belt 22, the third rotating rod 20 and the semi-gear 23 rotate. The semi-gear 23 meshes with the first toothed ring 24 to rotate and drives the turntable 11 and the guide rod 12 on its top to rotate. The guide rod 12 continuously slides in the guide groove 14 and drives the guide plate 13 to move left and right, thereby driving the baffle 9 to move left and right continuously, sealing and opening the connecting pipe 7 to intermittently feed materials into the centrifugal cylinder 6, reducing the load of the centrifugal cylinder 6 during rotation and centrifugation. While the centrifugal cylinder 6 is rotating, the scraper 8 continuously moves up and down to scrape the solid substances attached to the inner wall of the centrifugal cylinder 6 to prevent it from blocking the filter holes, improving the efficiency and effect of centrifugation, and further improving the effect of solid-liquid separation.

[0039] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A solid-liquid separation device for chemical waste reuse, comprising a base (1), characterized in that: A support rod (2) is fixedly arranged at the top of the base (1), a pretreatment box (3) is fixedly arranged at the top of the support rod (2), a support plate (4) is fixedly arranged below the support rod (2), a separation box (5) is fixedly arranged at the top of the support plate (4), a centrifugal cylinder (6) is rotatably connected inside the separation box (5), a communicating pipe (7) is fixedly arranged at the bottom of the pretreatment box (3), the communicating pipe (7) penetrates and extends into the separation box (5) and is rotatably connected to the top of the centrifugal cylinder (6), a baffle (9) is slidably connected inside the communicating pipe (7), a reciprocating assembly for moving the baffle (9) left and right is arranged on one side of the top of the separation box (5), a driving mechanism for jointly driving the centrifugal cylinder (6) and the reciprocating assembly is arranged on one side of the top of the base (1), a scraper (8) is movably arranged inside the centrifugal cylinder (6), and a lifting assembly for moving the scraper (8) up and down is arranged inside the centrifugal cylinder (6).

2. The solid-liquid separation device for chemical waste reuse according to claim 1, wherein: The reciprocating assembly includes a first rotating rod (10) rotatably connected to one side of the top of the support plate (4), a turntable (11) is fixedly connected to the top of the first rotating rod (10), a guide rod (12) is fixedly arranged on one side of the top of the turntable (11), one end of the baffle (9) close to the turntable (11) penetrates the communicating pipe (7) and is fixedly connected to a guide plate (13), a guide groove (14) is formed inside the guide plate (13), and the guide rod (12) is slidably connected inside the guide groove (14).

3. The solid-liquid separation device for chemical waste recycling according to claim 2, wherein: The driving mechanism includes a driving motor (15) fixedly arranged on the top of the base (1), an output shaft of the driving motor (15) is fixedly connected to a rotating shaft (16), the rotating shaft (16) penetrates and extends into the separation box (5) and is fixedly connected to the bottom of the centrifugal cylinder (6).

4. A solid-liquid separation device for chemical waste recycling according to claim 3, characterized in that: A second rotating rod (17) is rotatably connected to one side of the top of the base (1), a first gear (18) is fixedly sleeved on the second rotating rod (17), the first gear (18) is meshed with a second gear (19), the second gear (19) is fixedly sleeved on the rotating shaft (16), a third rotating rod (20) is rotatably connected to the top of the base (1), transmission wheels (21) are fixedly sleeved on both the third rotating rod (20) and the second rotating rod (17), the two transmission wheels (21) are connected by a transmission belt (22), the top of the third rotating rod (20) penetrates the support plate (4) and is fixedly sleeved with a semi-gear (23), and a first toothed ring (24) is fixedly sleeved on the outer wall of the turntable (11), and the semi-gear (23) is meshed with the first toothed ring (24).

5. The solid-liquid separation device for chemical waste reuse according to claim 4, characterized in that: The diameter of the first gear (18) is larger than the diameter of the second gear (19), and the diameter of the first toothed ring (24) is the same as the diameter of the semi-gear (23).

6. The solid-liquid separation device for chemical waste recycling according to claim 1, characterized in that: The lifting assembly includes a reciprocating lead screw (25) rotatably connected inside the separation box (5), a moving seat (26) is threadedly connected to the reciprocating lead screw (25), and the moving seat (26) is fixedly arranged on the scraper (8).

7. A solid-liquid separation device for chemical waste recycling according to claim 6, characterized in that: The top of the reciprocating lead screw (25) penetrates through the centrifugal cylinder (6) and is fixedly sleeved with a third gear (27), and a second toothed ring (28) is fixedly arranged at the top of the separation box (5), and the third gear (27) is meshed and connected with the second toothed ring (28).

8. A solid-liquid separation device for chemical waste recycling according to claim 7, characterized in that: The number of the reciprocating lead screws (25) is set to four, the reciprocating lead screws (25) are evenly distributed in the centrifugal cylinder (6), and the scraper (8) is arranged as a hollow annular plate.

9. A solid-liquid separation device for chemical waste recycling according to claim 1, characterized in that: A transmission box (29) is fixedly arranged at the top of the pretreatment box (3), a filtering hole (30) is arranged at the bottom of the transmission box (29), a conveying screw (31) is rotatably connected in the transmission box (29), a conveying shaft at one end of the conveying screw (31) penetrates through the transmission box (29) and is fixedly connected with a rotating motor (32), the rotating motor (32) is fixedly arranged on the outer wall of the transmission box (29), and a discharge pipe (33) is fixedly arranged on one side of the bottom of the transmission box (29).

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