Device for extracting supernatant from zinc oxide in zinc smelting

Abstract

The invention discloses a zinc smelting zinc oxide supernate extraction device which comprises a base, and a first reaction cylinder, a second reaction cylinder, a third reaction cylinder and a fourth reaction cylinder are arranged on the upper end face of the base. And the first reaction cylinder is communicated with the second reaction cylinder through a connecting pipe, the second reaction cylinder is communicated with the third reaction cylinder through a connecting pipe, and the third reaction cylinder is communicated with the fourth reaction cylinder through a connecting pipe. According to the device, a certain amount of supernate is guided into the first reaction cylinder through the feeding pipe, the PLC controls the driving part to start, the material distributing plate is driven to rotate, an additive in the material storage box is guided into all the reaction cylinders through the discharging pipe, meanwhile, the contact block makes contact with the receivers on all the reaction cylinders in sequence, and electric signals are transmitted to the PLC; the PLC controls the driving motor to start, drives the stirring rod to rotate, stirs the supernatant in the corresponding reaction cylinder, accelerates the reaction with the corresponding additive, and obtains the supernatant with less impurities, so that the output rate of the supernatant is higher.

Description

Technical Field

[0001] The invention relates to the technical field of zinc smelting, in particular to a device for extracting supernatant solution in zinc oxide smelting. Background Art

[0002] Hydrometallurgy refers to the process of dissolving zinc in zinc roasted sand or other zinc sulfide additives and zinc sulfide concentrate in aqueous solution to extract metallic zinc or zinc compounds. It is the main method of modern zinc smelting. It consists of three major links: zinc leaching, purification from acid zinc solution, and zinc electrolytic deposition. Hydrometallurgy mainly includes roasting, leaching, leachate purification and electrolysis. After the zinc concentrate is roasted, the electrolytic waste liquid is used for neutral leaching to dissolve most of the zinc oxide, and the obtained slurry is separated into supernatant and underflow slurry.

[0003] After the supernatant is purified, the metal zinc is produced by electrolysis and melted into ingots. The underflow pulp is acid leached to dissolve the residual zinc oxide. The acid leaching solution returns to the neutral leaching. The acid leaching residue containing about 20% zinc needs further treatment. The traditional method uses rotary kiln volatilization to recover zinc, lead and some scattered metals.

[0004] In the prior art, the supernatant separated from the slurry contains a lot of impurities, resulting in a low output rate of the supernatant separated from the slurry. Therefore, a supernatant solution extraction device for zinc oxide smelting is proposed to improve the output rate of the supernatant and the recovery rate of zinc. Summary of the invention

[0005] The object of the present invention is to solve the above-mentioned problem and to provide a device for extracting supernatant solution from zinc oxide in zinc smelting.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: A device for extracting supernatant solution from zinc oxide in zinc smelting comprises a base, wherein the upper end surface of the base is provided with a first reaction cylinder, a second reaction cylinder, a third reaction cylinder and a fourth reaction cylinder, wherein the first reaction cylinder and the second reaction cylinder, the second reaction cylinder and the third reaction cylinder, and the third reaction cylinder and the fourth reaction cylinder are all connected through connecting pipes, wherein the connecting pipes are provided with a feed pump, wherein the first reaction cylinder, the second reaction cylinder, the third reaction cylinder and the fourth reaction cylinder are all provided with a cover plate and a feed pipe, wherein the cover plate is provided with a stirring mechanism, wherein the feed pipe is provided with a feeding mechanism, and wherein the base is provided with a driving mechanism matched with the stirring mechanism and the feeding mechanism; The feeding mechanism comprises a material distribution barrel connected to the upper end of the feeding tube, the upper end of the material distribution barrel is connected to a material storage box, the inner side wall of the material distribution barrel is rotatably connected to a material distribution plate via a connecting shaft, one end of the connecting shaft extends to the outside of the material distribution barrel and is fixedly connected to a first bevel gear; The driving mechanism comprises a support fixedly connected to the base, the upper end face of the support is fixedly connected to the support platform, the support platform is rotatably connected to a rotating shaft, the lower end of the rotating shaft extends to the bottom of the support platform and is fixedly connected to the second bevel gear, the second bevel gear is meshed with the first bevel gear, the upper end of the rotating shaft extends above the support platform and is fixedly connected to the first driven groove wheel, the first driven groove wheel is provided with a first guide groove and a first limiting groove, the support is provided with a driving member, the driving end of the driving member extends above the support platform and is fixedly connected to a cam, the upper end face of the support platform is rotatably connected to the second driven groove wheel, the second driven groove wheel is provided with a second guide groove and a second limiting groove, the cam is fixedly connected to a first round pin matching the second guide groove, the upper end face of the second driven groove wheel is fixedly connected to a coaxially arranged disc, the disc is fixedly connected to a second round pin matching the first guide groove, the upper end face of the disc is fixedly connected to a support arm, and the open end of the support arm is provided with a contact block matching the stirring mechanism.

[0007] Preferably, the stirring mechanism comprises a driving motor, a stirring rod and a receiver. The cover plate is provided with a driving motor, the output end of the driving motor extends to the bottom of the cover plate and is fixedly connected to the stirring rod. The cover plate is provided with a receiver that matches the contact block.

[0008] Preferably, a PLC controller is provided in the support, and the PLC controller is electrically connected to the drive motor, the drive element and the receiver.

[0009] Preferably, the driving motor and the driving member are both servo motors.

[0010] Preferably, there are four second bevel gears and four first driven grooved wheels respectively, the four second bevel gears correspond one by one to the first bevel gears on the first reaction cylinder, the second reaction cylinder, the third reaction cylinder and the fourth reaction cylinder respectively, and the four first driven grooved wheels are distributed in a ring-shaped manner with equal distances about the axis of the support platform.

[0011] Preferably, the second driven groove wheel is provided with four second guide grooves and four second limit grooves, the four second guide grooves and the four second limit grooves are respectively distributed in a circular shape with equal distances about the axis of the support platform, and the four second guide grooves and the four second limit grooves are alternately arranged.

[0012] Preferably, the first driven groove wheel is provided with a plurality of first guide grooves and first limit grooves, the number of the first guide grooves and the first limit grooves are the same, the plurality of first guide grooves and the first limit grooves are respectively distributed in a ring shape with equal distances about the axis of the rotating shaft, and the plurality of first guide grooves and the first limit grooves are alternately arranged.

[0013] Preferably, the first limiting groove and the second limiting groove are both concave arc surfaces, the cam is provided with an outer convex arc surface matching with the second limiting groove, and the disc is provided with an outer convex arc surface matching with the first limiting groove.

[0014] Preferably, the connecting pipe, the feeding pipe and the material storage box are all provided with a control valve electrically connected to the PLC controller.

[0015] Preferably, the first reaction cylinder is provided with a material inlet pipe, and the fourth reaction cylinder is provided with a material outlet pipe.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. The present application is provided with a first reaction cylinder, a second reaction cylinder, a third reaction cylinder and a fourth reaction cylinder, and ferrous sulfate is added to the storage box on the first reaction cylinder, hydrogen peroxide is added to the storage box on the second reaction cylinder, lime milk is added to the storage box on the third reaction cylinder, and silicon purification and filtration performance improver is added to the storage box on the fourth reaction cylinder, a certain amount of supernatant is introduced into the first reaction cylinder through a feed pipe, a driving member is started by controlling a PLC controller to drive a cam to rotate, a first round pin enters a second guide groove, so that the second driven groove wheel rotates, so that the disc and the second driven groove wheel rotate synchronously, the second round pin enters the first guide groove, drives the first driven groove wheel to rotate, drives the second bevel gear to rotate through a rotating shaft, so that the first bevel gear meshing with it rotates, thereby driving the dividing plate to rotate and introduce the additive inside the storage box from a discharge pipe into each In the reaction cylinder, the disc rotates while driving the contact block to rotate, and contacts with the receivers on each reaction cylinder in turn, transmitting an electrical signal to the PLC controller, and the PLC controller controls the drive motor to start, driving the stirring rod to rotate, stirring the supernatant in the corresponding reaction cylinder, and accelerating the reaction with the corresponding additive. The supernatant reacts with ferrous sulfate in the first reaction cylinder to obtain solution one. After the reaction is completed, the PLC controller controls the feed pump to introduce solution one into the second reaction cylinder through the connecting pipe, and solution one reacts with hydrogen peroxide to obtain solution two. Solution two is introduced into the third reaction cylinder, reacts with lime milk to obtain solution three, and solution three is introduced into the fourth reaction cylinder, reacts with a silicon purification and filtration performance improver to obtain solution four. Solution four is discharged through a discharge pipe, solid-liquid separation is performed, and a supernatant containing less impurities is obtained, so that the supernatant output rate is higher.

[0017] 2. The present application controls the feed pump, the drive motor and the drive member respectively through a PLC controller, and transmits an electrical signal to the PLC controller through the contact block contacting the receiver, so that when a certain amount of supernatant is located in the first reaction cylinder, the PLC controller drives the contact block to contact the receiver on the first reaction cylinder by controlling the drive member, and controls the drive motor to start through the PLC controller, driving the stirring rod to rotate to stir the supernatant in the cylinder, and at the same time, the driving member drives the distribution cylinder to rotate a certain angle, and introduces the additive in the storage box into the reaction cylinder through the discharge pipe, and the stirring of the stirring rod can accelerate the reaction of the supernatant and the additive. At this time, the stirring mechanism and the feeding mechanism on the remaining reaction cylinders are stationary. After the reaction of the supernatant in the first reaction cylinder is completed, it enters the second reaction cylinder, the third reaction cylinder and the fourth reaction cylinder in turn for reaction. The linkage mechanism between the driving mechanism, the stirring mechanism and the feeding mechanism greatly improves the degree of automation of the device, and avoids idling of the stirring mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It shows a schematic diagram of the overall structure of an extraction device provided according to an embodiment of the present invention; Figure 2 A partial structural schematic diagram of an extraction device provided according to an embodiment of the present invention is shown; Figure 3 An exploded view of the stirring mechanism and the feeding mechanism according to an embodiment of the present invention is shown; Figure 4 It shows a schematic diagram of the coordination structure of the driving mechanism, the stirring mechanism and the feeding mechanism provided in an embodiment of the present invention; Figure 5 It shows a schematic diagram of the coordination structure between the driving mechanism and the feeding mechanism provided in an embodiment of the present invention; Figure 6 An exploded view of the driving mechanism structure provided according to an embodiment of the present invention is shown; Figure 7 An exploded view of a local structure of a driving mechanism provided according to an embodiment of the present invention is shown.

[0019] Legend: 1. Base; 2. First reaction cylinder; 3. Second reaction cylinder; 4. Third reaction cylinder; 5. Fourth reaction cylinder; 6. Connecting pipe; 7. Feeding pump; 8. Feeding pipe; 9. Discharging pipe; 10. Cover plate; 11. Driving motor; 12. Stirring rod; 13. Receiver; 14. Feeding pipe; 15. Distributing cylinder; 16. Storage box; 17. Connecting shaft; 18. Distributing plate; 19. First bevel gear; 20. Support; 21. Support platform; 22. Rotating shaft; 23. Second bevel gear; 24. First driven groove wheel; 25. First guide groove; 26. First limiting groove; 27. Second driven groove wheel; 28. Second guide groove; 29. ​​Second limiting groove; 30. Cam; 31. First round pin; 32. Disc; 33. Second round pin; 34. Support arm; 35. Contact block. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1-7 , the present invention provides a technical solution: The device for extracting supernatant solution from zinc oxide in zinc smelting comprises a base 1, wherein the upper end surface of the base 1 is provided with a first reaction cylinder 2, a second reaction cylinder 3, a third reaction cylinder 4 and a fourth reaction cylinder 5, wherein the first reaction cylinder 2 and the second reaction cylinder 3, the second reaction cylinder 3 and the third reaction cylinder 4, and the third reaction cylinder 4 and the fourth reaction cylinder 5 are all connected through a connecting pipe 6, wherein a feed pump 7 is provided on the connecting pipe 6, and a cover plate 10 and a feed pipe 14 are provided on the first reaction cylinder 2, the second reaction cylinder 3, the third reaction cylinder 4 and the fourth reaction cylinder 5, wherein the cover plate 1 0 is provided with a stirring mechanism, a feeding mechanism is provided on the feeding tube 14, and a driving mechanism matched with the stirring mechanism and the feeding mechanism is provided on the base 1; the feeding mechanism includes a distributing barrel 15 connected with the upper end of the feeding tube 14, and the upper end of the distributing barrel 15 is connected with a storage box 16, and the inner side wall of the distributing barrel 15 is rotatably connected with a distributing plate 18 through a connecting shaft 17, and one end of the connecting shaft 17 extends to the outside of the distributing barrel 15 and is fixedly connected with a first bevel gear 19; the driving mechanism includes a support 20 fixedly connected to the base 1, and the upper end surface of the support 20 is fixed A support platform 21 is connected, and a rotating shaft 22 is rotatably connected to the support platform 21. The lower end of the rotating shaft 22 extends to the bottom of the support platform 21 and is fixedly connected to the second bevel gear 23. The second bevel gear 23 is meshed and connected with the first bevel gear 19. The upper end of the rotating shaft 22 extends to the top of the support platform 21 and is fixedly connected to the first driven groove wheel 24. The first driven groove wheel 24 is provided with a first guide groove 25 and a first limiting groove 26. A driving member is provided in the support 20. The driving end of the driving member extends to the top of the support platform 21 and is fixedly connected to the cam 30. The upper end surface of the support platform 21 is rotatably connected to a second driven groove wheel 27, and a second guide groove 28 and a second limit groove 29 are provided on the second driven groove wheel 27. A first round pin 31 matching the second guide groove 28 is fixedly connected to the cam 30. A coaxially arranged disc 32 is fixedly connected to the upper end surface of the second driven groove wheel 27, and a second round pin 33 matching the first guide groove 25 is fixedly connected to the disc 32. A support arm 34 is fixedly connected to the upper end surface of the disc 32, and a contact block 35 matching the stirring mechanism is provided at the open end of the support arm 34.Ferrous sulfate is added to the storage box 16 on the first reaction cylinder 2, hydrogen peroxide is added to the storage box 16 on the second reaction cylinder 3, lime milk is added to the storage box 16 on the third reaction cylinder 4, and silicon purification and filtration performance improver is added to the storage box 16 on the fourth reaction cylinder 5. A certain amount of supernatant is introduced into the first reaction cylinder 2 through the feed pipe 8, and the driving part is started by the PLC controller to drive the cam 30 to rotate, and the first round pin 31 enters the second guide groove 28, so that the second driven groove wheel 27 rotates, so that the disc 32 and the second driven groove wheel The second round pin 33 enters the first guide groove 25, drives the first driven groove wheel 24 to rotate, drives the second bevel gear 23 to rotate through the rotating shaft 22, and makes the first bevel gear 19 meshing therewith rotate, thereby driving the material distribution plate 18 to rotate and guide the additive inside the storage box 16 from the feeding pipe 14 to the first reaction cylinder 2. The rotation of the disc 32 drives the contact block 35 to rotate, contacts with the receiver 13 on the first reaction cylinder 2, transmits the electrical signal to the PLC controller, and controls the driving motor on the first reaction cylinder 2 through the PLC controller. 11 is started, driving the stirring rod 12 to rotate, stirring the supernatant in the first reaction cylinder 2, accelerating the reaction with the corresponding additives, the supernatant reacts with ferrous sulfate in the first reaction cylinder 2 to obtain solution 1, after the reaction is completed, the PLC controller controls the feeding pump 7 to introduce solution 1 into the second reaction cylinder 3 through the connecting pipe 6, repeating the above operation of the driving member started by the PLC controller, introducing the additive inside the storage box 16 on the second reaction cylinder 3 into the second reaction cylinder 3 through the discharge pipe 14, and at the same time, the contact block 35 contacts the receiver 13 on the second reaction cylinder 3, so that solution 1 reacts with hydrogen peroxide to obtain solution 2, and then solution 2 is introduced into the third reaction cylinder 4, reacting with lime milk to obtain solution 3, and solution 3 is introduced into the fourth reaction cylinder 5, reacting with silicon purification and filtration performance improvement agent to obtain solution 4, and solution 4 is discharged through the discharge pipe 9 for solid-liquid separation to obtain a supernatant containing less impurities, so that the supernatant output rate is higher, and the linkage mechanism between the driving mechanism, the stirring mechanism and the feeding mechanism greatly improves the automation degree of the device, and avoids the idling of the stirring mechanism.

[0022] Specifically, Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the stirring mechanism includes a driving motor 11, a stirring rod 12 and a receiver 13. The driving motor 11 is provided on the cover plate 10. The output end of the driving motor 11 extends to the bottom of the cover plate 10 and is fixedly connected with the stirring rod 12. The cover plate 10 is provided with a receiver 13 that matches the contact block 35. A PLC controller is provided in the support 20, and the PLC controller is electrically connected to the driving motor 11, the driving member and the receiver 13. Both the driving motor 11 and the driving member are servo motors. By providing a stirring mechanism, when the contact block 35 contacts the receiver 13 on the reaction cylinder where the supernatant is located, an electrical signal is transmitted to the PLC controller, and the PLC controller controls the driving motor 11 to start, thereby driving the stirring rod 12 to rotate to stir the supernatant in the reaction cylinder, accelerate the reaction of the supernatant with the corresponding additive, and make the mixing reaction of the supernatant with the additive more uniform and thorough, so as to facilitate the uniform mixing of the mixed liquid with the next layer of additives.

[0023] Specifically, Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, there are four second bevel gears 23 and four first driven grooved wheels 24, respectively. The four second bevel gears 23 correspond to the first bevel gears 19 on the first reaction tube 2, the second reaction tube 3, the third reaction tube 4 and the fourth reaction tube 5, respectively. The four first driven grooved wheels 24 are equidistantly distributed in an annular manner about the axis of the support platform 21. The second driven grooved wheel 27 is provided with four second guide grooves 28 and four second limiting grooves 29, which are equidistantly distributed in an annular manner about the axis of the support platform 21, and the four second guide grooves 28 and the four second limiting grooves 29 are alternately arranged. The first driven grooved wheel 24 is provided with a plurality of first guide grooves 25 and a first limiting groove 26, the number of the first guide grooves 25 and the first limiting groove 26 are the same, the plurality of first guide grooves 25 and the first limiting groove 26 are equidistantly distributed in an annular manner about the axis of the rotating shaft 22, and the plurality of first guide grooves 25 and the first limiting groove 26 are alternately arranged. The first limiting groove 26 and the second limiting groove 29 are both concave arc surfaces, the cam 30 is provided with an outer convex arc surface matching with the second limiting groove 29, and the disc 32 is provided with an outer convex arc surface matching with the first limiting groove 26. Through the cooperation between the first driven sheave 24 and the disc 32, and the cooperation between the second driven sheave 27 and the cam 30, the contact block 35 and the second bevel gear 23 can realize intermittent operation, and due to the matching arrangement of the concave arc surface and the convex arc surface, the contact block 35 and the second bevel gear 23 have good limiting when stationary, and better stability.

[0024] Specifically, Figure 1 , Figure 2 and Figure 3As shown, control valves electrically connected to the PLC controller are provided in the connecting pipe 6, the feeding pipe 14 and the storage box 16. The first reaction cylinder 2 is provided with a feeding pipe 8, and the fourth reaction cylinder 5 is provided with a discharging pipe 9. A plurality of control valves electrically connected to the PLC controller are provided, so that the reactions of the supernatant in each reaction cylinder can be carried out in sequence, ensuring the orderly progress of each reaction of the supernatant.

[0025] In summary, the device for extracting the supernatant solution from zinc oxide in zinc smelting provided in this embodiment first adds ferrous sulfate into the storage box 16 on the first reaction cylinder 2, adds hydrogen peroxide into the storage box 16 on the second reaction cylinder 3, adds lime milk into the storage box 16 on the third reaction cylinder 4, adds silicon purification and filtration performance improver into the storage box 16 on the fourth reaction cylinder 5, introduces a certain amount of supernatant into the first reaction cylinder 2 through the feed pipe 8, controls the driving part to start through the PLC controller, drives the cam 30 to rotate, and the first round pin The second round pin 31 enters the second guide groove 28, so that the second driven groove wheel 27 rotates, so that the disc 32 rotates synchronously with the second driven groove wheel 27, and the second round pin 33 enters the first guide groove 25, driving the first driven groove wheel 24 to rotate, and the second bevel gear 23 is driven to rotate through the rotating shaft 22, so that the first bevel gear 19 meshing with it rotates, thereby driving the material distribution plate 18 to rotate and introduce the additive in the storage box 16 from the discharge pipe 14 into the first reaction cylinder 2. The rotation of the disc 32 drives the contact block 35 to rotate, and the first reaction cylinder 2 The receiver 13 on the first reaction cylinder 2 contacts and transmits an electrical signal to the PLC controller. The driving motor 11 on the first reaction cylinder 2 is controlled by the PLC controller to start, drive the stirring rod 12 to rotate, stir the supernatant in the first reaction cylinder 2, and accelerate the reaction with the corresponding additive. The supernatant reacts with ferrous sulfate in the first reaction cylinder 2 to obtain solution one. After the reaction is completed, the feeding pump 7 is controlled by the PLC controller to introduce solution one into the second reaction cylinder 3 through the connecting pipe 6. The above operation of controlling the driving member to start by the PLC controller is repeated to introduce the additive inside the storage box 16 on the second reaction cylinder 3 into the second reaction cylinder 3 through the discharge pipe 14. At the same time, the contact block 35 contacts the receiver 13 on the second reaction cylinder 3, so that solution one reacts with hydrogen peroxide to obtain solution two, and then solution two is introduced into the third reaction cylinder 4 to react with lime milk to obtain solution three, and solution three is introduced into the fourth reaction cylinder 5 to react with silicon purification and filtration performance improver to obtain solution four, and solution four is discharged through the discharge pipe 9 for solid-liquid separation to obtain a supernatant containing less impurities.

[0026] The above description of the embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A device for extracting supernatant solution from zinc oxide in zinc smelting, comprising a base (1), characterized in that: The upper end surface of the base (1) is provided with a first reaction cylinder (2), a second reaction cylinder (3), a third reaction cylinder (4) and a fourth reaction cylinder (5); the first reaction cylinder (2) and the second reaction cylinder (3), the second reaction cylinder (3) and the third reaction cylinder (4), and the third reaction cylinder (4) and the fourth reaction cylinder (5) are all connected via a connecting pipe (6); a feed pump (7) is provided on the connecting pipe (6); the first reaction cylinder (2), the second reaction cylinder (3), the third reaction cylinder (4) and the fourth reaction cylinder (5) are all provided with a cover plate (10) and a feed pipe (14); a stirring mechanism is provided on the cover plate (10); a feeding mechanism is provided on the feed pipe (14); and the base (1) is provided with a driving mechanism that cooperates with the stirring mechanism and the feeding mechanism; The feeding mechanism comprises a material distribution barrel (15) connected to the upper end of the feeding tube (14); the upper end of the material distribution barrel (15) is connected to a material storage box (16); the inner side wall of the material distribution barrel (15) is rotatably connected to a material distribution plate (18) via a connecting shaft (17); one end of the connecting shaft (17) extends to the outside of the material distribution barrel (15) and is fixedly connected to a first bevel gear (19); The driving mechanism comprises a support (20) fixedly connected to the base (1); the upper end surface of the support (20) is fixedly connected to a support platform (21); a rotating shaft (22) is rotatably connected to the support platform (21); the lower end of the rotating shaft (22) extends to the bottom of the support platform (21) and is fixedly connected to a second bevel gear (23); the second bevel gear (23) is meshingly connected to the first bevel gear (19); the upper end of the rotating shaft (22) extends to the top of the support platform (21) and is fixedly connected to a first driven groove wheel (24); the first driven groove wheel (24) is provided with a first guide groove (25) and a first limiting groove (26); a driving member is provided in the support (20); the driving end of the driving member extends to the support platform (21) and the driving end of the driving member extends to the support platform (21). A cam (30) is fixedly connected to the support platform (21), the upper end surface of the support platform (21) is rotatably connected to a second driven groove wheel (27), the second driven groove wheel (27) is provided with a second guide groove (28) and a second limit groove (29), the cam (30) is fixedly connected to a first round pin (31) matching with the second guide groove (28), the upper end surface of the second driven groove wheel (27) is fixedly connected to a coaxially arranged disc (32), the disc (32) is fixedly connected to a second round pin (33) matching with the first guide groove (25), the upper end surface of the disc (32) is fixedly connected to a support arm (34), the open end of the support arm (34) is provided with a contact block (35) matching with the stirring mechanism.

2. The device for extracting supernatant solution from zinc oxide in zinc smelting according to claim 1, characterized in that: The stirring mechanism comprises a driving motor (11), a stirring rod (12) and a receiver (13); the driving motor (11) is provided on the cover plate (10); an output end of the driving motor (11) extends to the bottom of the cover plate (10) and is fixedly connected to the stirring rod (12); and the cover plate (10) is provided with a receiver (13) that matches the contact block (35).

3. The device for extracting supernatant solution from zinc oxide in zinc smelting according to claim 2, characterized in that: A PLC controller is provided in the support (20), and the PLC controller is electrically connected to the drive motor (11), the drive element, and the receiver (13).

4. The device for extracting supernatant solution from zinc oxide in zinc smelting according to claim 3, characterized in that: The driving motor (11) and the driving element are both servo motors.

5. The device for extracting supernatant solution from zinc oxide in zinc smelting according to claim 1, characterized in that: Four second bevel gears (23) and four first driven grooved wheels (24) are provided respectively, and the four second bevel gears (23) correspond one-to-one to the first bevel gears (19) on the first reaction cylinder (2), the second reaction cylinder (3), the third reaction cylinder (4) and the fourth reaction cylinder (5), respectively, and the four first driven grooved wheels (24) are distributed in an annular manner with equal distances about the axis of the support platform (21).

6. The device for extracting supernatant solution from zinc oxide in zinc smelting according to claim 5, characterized in that: The second driven groove wheel (27) is provided with four second guide grooves (28) and four second limit grooves (29), the four second guide grooves (28) and the four second limit grooves (29) are respectively distributed in an annular manner and at equal intervals about the axis of the support platform (21), and the four second guide grooves (28) and the four second limit grooves (29) are arranged alternately.

7. The device for extracting supernatant solution from zinc oxide in zinc smelting according to claim 6, characterized in that: The first driven groove wheel (24) is provided with a plurality of first guide grooves (25) and first limit grooves (26), the number of the first guide grooves (25) and the number of the first limit grooves (26) are the same, the plurality of first guide grooves (25) and the first limit grooves (26) are respectively distributed in an annular manner and at equal intervals about the axis of the rotating shaft (22), and the plurality of first guide grooves (25) and the first limit grooves (26) are alternately arranged.

8. The device for extracting supernatant solution from zinc oxide in zinc smelting according to claim 7, characterized in that: The first limiting groove (26) and the second limiting groove (29) are both concave arc surfaces, the cam (30) is provided with an outward convex arc surface matching with the second limiting groove (29), and the disc (32) is provided with an outward convex arc surface matching with the first limiting groove (26).

9. The device for extracting supernatant solution from zinc oxide in zinc smelting according to claim 3, characterized in that: The connecting pipe (6), the feeding pipe (14) and the material storage box (16) are all provided with control valves electrically connected to the PLC controller.

10. The device for extracting supernatant solution from zinc oxide in zinc smelting according to claim 1, characterized in that: The first reaction cylinder (2) is provided with an inlet pipe (8), and the fourth reaction cylinder (5) is provided with an outlet pipe (9).

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