A pure zinc solution extraction equipment for zinc oxide production and an extraction method

Abstract

The application relates to the technical field of extraction processes, and discloses a pure zinc solution extraction equipment for zinc oxide production and an extraction method, which comprises a treatment box, an isolation shaft seat is fixedly installed in the inside of the treatment box, a flow guide plate is fixedly connected to the outer wall of a shaft rod of the isolation shaft seat, a discharging bin is fixedly communicated with the top of the treatment box, a filter plate is arranged above the flow guide plate, a cleaning assembly for cleaning the mesh of the filter plate is arranged above the filter plate, a magnetic separation screening assembly is arranged on the other side of the treatment box, the mesh of the filter plate rotating to a horizontal state is deeply cleaned through the cleaning assembly, irregular impurities stuck in the mesh are removed, the permeability of the filter plate is restored, the risk of mesh blockage is reduced, seamless switching of filtering and cleaning is realized, manual intervention is reduced, efficiency is improved, and the impurities after cleaning fall onto the upper surface of the flow guide plate and flow into the magnetic separation screening assembly along the current slope to continue the screening treatment.

Description

Technical Field

[0001] This invention belongs to the field of extraction technology, specifically relating to an extraction device and method for producing pure zinc solution from zinc oxide. Background Technology

[0002] Zinc oxide, as an important industrial raw material, has wide applications in fields such as steel, metallurgy, machinery, electrical, chemical, light industry, military and medicine. However, my country's proven zinc reserves are not abundant, and the total amount of zinc ore with economic mining value is insufficient. Therefore, how to extract zinc from zinc oxide ore or other zinc-containing raw materials in an efficient and environmentally friendly manner has become an urgent problem to be solved.

[0003] In the process of producing pure zinc solution from zinc oxide, the zinc oxide ore or zinc-containing raw materials are first crushed to increase the specific surface area of ​​the raw materials and improve the efficiency of subsequent reactions. The crushed raw materials are then thoroughly mixed with leaching agents such as sulfuric acid, and zinc enters the solution in ionic form through acid leaching to form a zinc-containing acid leaching solution. Subsequently, the acid leaching solution is neutralized and precipitated by adjusting the pH value to precipitate impurities such as iron and aluminum in the form of hydroxides. After neutralization and precipitation, the precipitate is separated by filtration to obtain a clear zinc-containing solution. Finally, the filtered solution is introduced into an extraction device for extraction and back-extraction in sequence to achieve efficient separation of zinc from residual impurities, ultimately obtaining a high-purity zinc sulfate solution.

[0004] After acid leaching, the solution needs to be filtered through impurities before it can be added to the extraction equipment for extraction. However, in the existing filtration process, irregular impurities are easily trapped in the filter plate mesh, which leads to clogging and affects filtration efficiency and effect. To solve this problem, the filter plate usually needs to be disassembled regularly to clean the mesh. During the disassembly, cleaning and reinstallation of the filter plate, the acid-leached solution cannot be continuously filtered, which reduces the overall production efficiency. Moreover, when the filter plate is disassembled for cleaning, different types of impurities trapped in the mesh will mix together, making it difficult to effectively classify and collect them.

[0005] Therefore, the present invention provides an extraction device and extraction method for producing pure zinc solution from zinc oxide. Summary of the Invention

[0006] To overcome the shortcomings of the prior art: to solve at least one technical problem raised in the background art.

[0007] The technical solution adopted by the present invention to solve its technical problem is as follows: The present invention provides a pure zinc solution extraction device for zinc oxide production, comprising a processing tank, an isolation shaft seat fixedly installed inside the processing tank, a flow guide plate fixedly connected to the outer wall of the shaft of the isolation shaft seat, a feeding hopper fixedly connected to the top of the processing tank, a filter plate arranged above the flow guide plate, a liquid extraction pipe fixedly connected to one side of the processing tank, an extraction device fixedly connected to the end of the liquid extraction pipe away from the processing tank, a cutting-off component arranged outside the feeding hopper, the cutting-off component including a blocking plate that can move laterally to block the channel of the feeding hopper, the blocking plate being slidably connected to the inner wall of the feeding hopper, a steering component arranged on one side of the blocking plate, the steering component allowing the filter plate to rotate, a cleaning component arranged above the filter plate to clean its mesh, and a magnetic screening component arranged on the other side of the processing tank.

[0008] Preferably, the cutting-off assembly includes a movable frame plate, a blocking plate fixedly connected to one side of the movable frame plate, a support frame fixedly connected to the side of the movable frame plate away from the blocking plate, inner sliders fixedly connected to the bottom of both ends of the support frame, fixed slides symmetrically fixedly connected to the top of the processing box, telescopic rods fixedly connected to the inner walls of the fixed slides, the output end of the telescopic rods fixedly connected to one side of the inner sliders, and the inner sliders slidingly connected to and adapted to the inner walls of the fixed slides.

[0009] Preferably, the steering assembly includes a rotating rod, with one end of the filter plate being fixedly connected to the outer wall of the rotating rod, the outer wall of the rotating rod being rotatably connected to the side of the treatment box, gears being fixedly connected to both ends of the rotating rod, and a rack plate being symmetrically fixedly connected to the bottom of the support frame, the teeth of the rack plate being able to mesh with the teeth of the gears, and the end of the filter plate away from the rotating rod being in contact with the surface of the diversion plate.

[0010] Preferably, the shaft of the isolation shaft seat is rotatably connected to the side wall of the processing box, and external rods are fixedly connected to both ends of the shaft of the isolation shaft seat. A limiting rod is symmetrically fixedly connected to the outer wall of the rotating rod, and one end of the limiting rod is in contact with the top of the external rod. An arc-shaped slide is symmetrically fixedly connected to the side of the isolation shaft seat, and an arc-shaped slider is slidably connected to the inner wall of the arc-shaped slide. One side of the arc-shaped slider is fixedly connected to both sides of the diversion plate, and a torsion spring rod is fixedly connected to the bottom of the arc-shaped slider.

[0011] Preferably, the cleaning component includes a lifting plate, the bottom of which is fixedly connected to a plurality of insertion rods, the arrangement of which corresponds to the arrangement of the mesh of the filter plate, and a squeezing component is provided above the lifting plate to drive it to move downward.

[0012] Preferably, the extrusion assembly includes an extrusion block two, which is fixedly connected to the top of the lifting plate. An extrusion block one is fixedly connected to one side of the support frame. A limit block is fixedly connected to one side of the extrusion block two. A limit slider is fixedly installed on the side wall of the processing box. A sliding rod is fixedly connected to the inner wall of the limit slider. The limit block and the sliding rod are slidably connected. A spring one is fixedly connected to the bottom of the limit block. The end of the spring one away from the limit block is fixedly connected to the bottom surface of the inner wall of the limit slider.

[0013] Preferably, the magnetic separation and screening component includes a magnetic plate, which is fixedly connected to the bottom surface of the processing box. A guide plate is provided on one side of the magnetic plate, and an electromagnetic block is attached to the other side of the guide plate. A pull-out component that drives the electromagnetic block to move is provided on one side of the electromagnetic block. Collection box one and collection box two are placed on the bottom surface inside the processing box.

[0014] Preferably, the pull-out assembly includes a guide seat, which is fixedly connected to the side of the processing box. The electromagnetic block is slidably connected to the inner wall of the guide seat. A pull rod is inserted into the inner wall of the guide seat. One end of the pull rod is fixedly connected to one side of the electromagnetic block. A second spring is fixedly connected between the electromagnetic block and the inner wall of the guide seat. A second rotating rod is fixedly connected to the inner wall of the guide plate. The outer wall of the second rotating rod is rotatably connected to the side wall of the processing box. A second gear is fixedly connected to both ends of the second rotating rod. A fixed rod is fixedly connected to both ends of the pull rod. A second rack plate is fixedly connected to one side of the fixed rod. The teeth of the second rack plate can mesh with the teeth of the second gear.

[0015] A method for extracting pure zinc solution from zinc oxide, comprising the following steps: S1: Preliminary solution treatment: After the zinc oxide raw material is crushed, it is subjected to acid leaching treatment and neutralization precipitation treatment in sequence. The pH value is adjusted so that impurities such as iron and aluminum are precipitated out in the form of hydroxides. S2: Solution Injection and Preliminary Filtration: After neutralization and precipitation, the treated zinc-containing acid leaching solution is injected into the treatment tank through the feed hopper. Under the action of gravity, the solution flows downward along the inclined surface of the guide plate. The filter plate intercepts particulate impurities. The filtered solution enters the right space from the right end of the guide plate. During the continuous filtration process, the clear solution accumulated in the right space is transported to the extraction device through the liquid extraction pipe for the next extraction process. S3: Cut off solution flow: After filtration is completed, activate the cut-off component to block the channel of the feed hopper and prevent the solution from continuing to flow in; S4: Change of filter plate rotation and diversion plate tilt direction: When the cut-off component is started, the steering component is triggered to drive the filter plate to rotate to a horizontal parallel state, and the diversion plate can be tilted to the left to achieve the switching of the inclined state. S5: Filter plate mesh cleaning: After the blockage plate moves laterally to block the material hopper channel, it continues to move in the original direction and maintains the blockage state. At the same time, the extrusion component is triggered to start. The extrusion component pushes out the impurities embedded in the mesh without damage. The impurities fall onto the surface of the guide plate. S6: Impurities flow into the magnetic separation and screening component: The magnetic plate acts as a medium to adsorb metallic substances in the impurities. Ordinary impurities fall onto the inclined surface of the guide plate and fall along the inclined surface of the guide plate into the interior of the collection box two for collection. S7: Metal impurities are separated from ordinary impurities and collected; through the pull-out assembly, the electromagnetic block and the magnetic plate are completely separated, the magnetic force of the magnetic plate disappears, and the metal impurities adsorbed on its surface fall off under the action of gravity. At this time, the guide plate has rotated to a vertical state, and the metal impurities fall directly into the collection box one.

[0016] A method for extracting pure zinc solution for zinc oxide production, comprising a diversion component and a cleaning component, specifically includes the following steps: M1: When the support frame moves horizontally under the drive of the cutting component, the rack plate 1, which is symmetrically fixed at its bottom, moves synchronously. The teeth of the rack plate 1 mesh with the gears fixed at both ends of the rotating rod 1, converting the linear motion of the rack plate 1 into the rotational motion of the gear. The gear drives the filter plate to swing synchronously around the rotating rod 1 as the rotation center. The filter plate will eventually rotate to a horizontally parallel state and will still be located directly above the filter plate. Therefore, after the cleaning component cleans the mesh, the impurities will still fall onto the upper surface. At this time, the inclined surface state changes, and the impurities will flow into the internal left space for magnetic separation and classification. M2: When the filter plate rotates to a horizontally parallel state, it is perfectly aligned with the lifting plate. At this time, each insertion rod corresponds to a mesh hole in the filter plate. After the blocking plate moves horizontally to complete the blocking of the discharge hopper channel, it continues to move in the original direction and maintains the blocking state. This action simultaneously triggers the extrusion assembly to start. The extrusion assembly drives the lifting plate to move vertically downward, so that the insertion rod is accurately inserted into the mesh hole of the filter plate. The insertion surface of the insertion rod is the non-impurity interception side, and the impurities in the mesh hole will be easily pushed out, thereby achieving the goal of removing the impurities embedded in the mesh hole without damage and avoiding damage to the filter plate structure.

[0017] The beneficial effects of this invention are as follows: 1. The present invention discloses a pure zinc solution extraction device and extraction method for zinc oxide production. The cutting component blocks the feed hopper channel by moving the blocking plate laterally, controlling the timing of the solution entering the processing tank. After filtration, the blocking plate moves laterally to block the channel, preventing new solution from entering, thus creating conditions for subsequent cleaning and impurity recovery.

[0018] 2. The pure zinc solution extraction equipment and extraction method for zinc oxide production described in this invention, through a steering component, drives the filter plate to rotate to a horizontally parallel state during the movement of the blocking plate, so that the mesh is just in a position that can be cleaned by the cleaning component, and simultaneously adjusts the tilt direction of the guide plate, changing the guide plate from a right tilt state to a left tilt state, changing the impurity flow path, so that the intercepted particulate impurities flow into the left space of the processing box along the inclined surface, realizing the separation of impurities from the solution, and preparing for magnetic screening.

[0019] 3. The pure zinc solution extraction equipment and extraction method for zinc oxide production described in this invention, through the cleaning component, performs deep cleaning of the filter plate mesh in the horizontal position, removes the irregular impurities stuck in it, restores the permeability of the filter plate, reduces the risk of mesh blockage, achieves seamless switching between filtration and cleaning, reduces manual intervention, improves efficiency, and the cleaned impurities fall onto the surface of the guide plate and flow into the magnetic separation screening component along the current inclined plane for further screening.

[0020] 4. The pure zinc solution extraction equipment and extraction method for zinc oxide production described in this invention uses a magnetic separation and screening component and a pull-out component to electromagnetically adsorb and separate particulate impurities flowing into the left space of the processing tank, and realizes the classification and recycling of metallic impurities and ordinary impurities, thereby improving resource utilization. Attached Figure Description

[0021] The invention will now be further described with reference to the accompanying drawings.

[0022] Figure 1 This is a three-dimensional view of the entire invention; Figure 2 This is a schematic diagram of the internal structure of the processing box in this invention; Figure 3 This is a schematic diagram of the structure at the isolation bearing in this invention; Figure 4 This is a schematic diagram of the filter plate structure in this invention; Figure 5 This is a schematic diagram of a section of the rack plate in this invention; Figure 6 This is a schematic diagram of the support frame structure in this invention; Figure 7 This is a schematic diagram of the structure at the insertion rod in this invention; Figure 8 This is a schematic diagram of the structure of the guide plate in this invention; Figure 9 This is a schematic diagram of the structure of the electromagnetic block in this invention.

[0023] In the diagram: 1. Processing box; 2. Isolation shaft seat; 3. Drain plate; 4. Feed hopper; 5. Filter plate; 6. Liquid extraction pipe; 7. Extraction device; 8. Blocking plate; 9. Movable frame plate; 10. Support frame; 11. Fixed slide; 12. Inner slider; 13. Telescopic rod; 14. Rack plate one; 15. Gear; 16. Rotating rod one; 17. Limiting rod; 18. External rod; 19. Arc-shaped slide; 20. Torsion spring rod; 21. Arc-shaped slide 21. Block; 22. Extrusion Block 1; 23. Extrusion Block 2; 24. Lifting Plate; 25. Insertion Rod; 26. Limiting Block; 27. Limiting Slider; 28. Sliding Rod; 29. ​​Spring 1; 30. Magnetic Plate; 31. Guide Plate; 32. Guide Seat; 33. Electromagnetic Block; 34. Pull Rod; 35. Spring 2; 36. Rotating Rod 2; 37. Gear 2; 38. Rack Plate 2; 39. Fixing Rod; 40. Collection Box 1; 41. Collection Box 2. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0025] like Figures 1 to 9 As shown, the present invention provides a technical solution: a pure zinc solution extraction device for zinc oxide production, comprising a processing tank 1, an isolation shaft seat 2 fixedly installed inside the processing tank 1, a flow guide plate 3 fixedly connected to the outer wall of the shaft of the isolation shaft seat 2, a feeding bin 4 fixedly connected to the top of the processing tank 1, a filter plate 5 arranged above the flow guide plate 3, a liquid extraction pipe 6 fixedly connected to one side of the processing tank 1, an extraction device 7 fixedly connected to the end of the liquid extraction pipe 6 away from the processing tank 1, a cutting component arranged outside the feeding bin 4, the cutting component including a blocking plate 8 that can move laterally to block the channel of the feeding bin 4, the blocking plate 8 being slidably connected to the inner wall of the feeding bin 4, a steering component arranged on one side of the blocking plate 8, the steering component allowing the filter plate 5 to rotate, a cleaning component arranged above the filter plate 5 for cleaning its mesh, and a magnetic screening component arranged on the other side of the processing tank 1.

[0026] During operation: This equipment is specifically designed for the extraction process of producing pure zinc solution from zinc oxide, focusing on solving the filtration problem after neutralization and precipitation of acid leaching solution; after the zinc oxide raw material is crushed, it needs to undergo acid leaching treatment and neutralization and precipitation treatment in sequence, and the pH value is adjusted to precipitate impurities such as iron and aluminum in the form of hydroxides; after the neutralization and precipitation are completed, the solution needs to be separated into solid and liquid to obtain a clear zinc-containing solution, which provides a raw material guarantee for subsequent extraction processes; The blocking plate 8 is located outside the feeding hopper 4 to keep the feeding channel unobstructed; the guide plate 3 is tilted to the right, with its top end connected to the outlet end of the feeding hopper 4; the filter plate 5 is installed longitudinally above the guide plate 3, with the mesh facing the inclined surface; the magnetic separation and screening component is in standby mode; the treated zinc-containing acid leaching solution is injected into the processing tank 1 through the feeding hopper 4, and after the solution flows out along the outlet end of the feeding hopper 4, it falls into the top of the guide plate 3 and flows downward along the inclined surface under the action of gravity; during the flow, the filter plate 5 intercepts particulate impurities, and the clarified solution continues to flow downward along the inclined surface through the mesh; the isolation shaft seat 2 divides the interior of the processing tank 1 into two independent spaces, left and right, and the filtered solution enters the right space from the right end of the guide plate 3; during the continuous filtration process, the clarified solution accumulated in the right space is transported to the extraction device 7 through the extraction pipe 6 for the next extraction process; After filtration is completed, the cut-off component is activated, which moves the blocking plate 8 laterally to block the feed hopper 4 channel and prevent new solution from entering. During the movement of the blocking plate 8, the deflection component rotates the filter plate 5 to a horizontally parallel state. At the same time, the guide plate 3 gradually tilts to the left, changing the direction of the flow on the slope. At this time, the particulate impurities intercepted on the surface of the guide plate 3 flow along the slope into the left space of the processing box 1 and enter the magnetic separation and screening component. This component separates the metallic impurities from the ordinary impurities through the principle of electromagnetic adsorption and collects them into designated containers for subsequent classification and utilization. After the blocking plate 8 completes the blocking, it continues to move, maintaining the blocking state while triggering the cleaning component. The cleaning component thoroughly removes irregular impurities stuck in the mesh of the filter plate 5. The cleaned impurities fall onto the upper surface of the guide plate 3 and flow along the current slope into the magnetic separation and screening component for further processing. In the above embodiments, the interception component blocks the feeding hopper 4 channel by laterally moving the blocking plate 8, controlling the timing of solution entering the treatment tank 1. After filtration, the blocking plate 8 moves laterally to block the channel, preventing new solution from entering and creating conditions for subsequent cleaning and impurity recovery. Through the steering component, during the movement of the blocking plate 8, the filter plate 5 is driven to rotate to a laterally parallel state, so that the mesh is positioned where it can be cleaned by the cleaning component. Simultaneously, the tilt direction of the guide plate 3 is adjusted, changing from a right-side tilt to a left-side tilt, altering the impurity flow path and causing the intercepted particulate impurities to flow along the inclined surface into the left side of the treatment tank 1. In the process, impurities are separated from the solution, and preparation is made for magnetic screening. The cleaning component deeply cleans the mesh of the filter plate 5, which is rotated to the horizontal position, removes irregular impurities stuck in it, restores the permeability of the filter plate 5, reduces the risk of mesh blockage, and achieves seamless switching between filtration and cleaning, reducing manual intervention and improving efficiency. The cleaned impurities fall onto the upper surface of the guide plate 3 and flow into the magnetic screening component along the current slope for further screening. The magnetic screening component uses electromagnetic adsorption to separate particulate impurities flowing into the left space of the treatment box 1, realizing the classification and recycling of metal impurities and ordinary impurities, and improving resource utilization.

[0027] like Figures 5 to 6 As shown, the cutting component includes a movable frame plate 9, a blocking plate 8 fixedly connected to one side of the movable frame plate 9, a support frame 10 fixedly connected to the side of the movable frame plate 9 away from the blocking plate 8, inner sliders 12 fixedly connected to the bottom of both ends of the support frame 10, fixed slides 11 symmetrically fixedly connected to the top of the processing box 1, telescopic rods 13 fixedly connected to the inner walls of the fixed slides 11, the output end of the telescopic rods 13 fixedly connected to one side of the inner sliders 12, and the inner sliders 12 and the inner walls of the fixed slides 11 slidably connected and mutually adapted.

[0028] During operation: When it is necessary to stop the material from continuing to flow from the discharge hopper 4, the telescopic rod 13 retracts. One end of the telescopic rod 13 drives the inner slider 12 to move laterally along the inner wall of the fixed slide block 11. The sliding action of the inner slider 12 simultaneously drives the support frame 10, the movable frame plate 9, and the blocking plate 8 to move along the same horizontal trajectory. The blocking plate 8 moves laterally from its initial position into the channel of the discharge hopper 4, and its plate surface completely fits against the inner wall of the channel to form a seal, preventing the solution from continuing to flow in. During the entire movement, the fixed slide block 11 strictly constrains the sliding direction of the inner slider 12 through the inner wall guide structure, ensuring that the blocking plate 8 only moves in the horizontal direction without any deviation in other directions. At the same time, the tension of the telescopic rod 13 is converted into stable movement through the sliding of the inner slider 12 and the fixed slide block 11, ultimately realizing the dynamic, controllable, and precise sealing and opening of the channel of the discharge hopper 4 by the blocking plate 8.

[0029] like Figures 3 to 5 As shown, the steering assembly includes a rotating rod 16. The inner wall of one end of the filter plate 5 is fixedly connected to the outer wall of the rotating rod 16. The outer wall of the rotating rod 16 is rotatably connected to the side of the treatment box 1. Gears 15 are fixedly connected to both ends of the rotating rod 16. A rack plate 14 is symmetrically fixedly connected to the bottom of the support frame 10. The teeth of the rack plate 14 can mesh with the teeth of the gears 15. The end of the filter plate 5 away from the rotating rod 16 is in contact with the surface of the diversion plate 3.

[0030] During operation: When the support frame 10 moves horizontally under the drive of the cutting component, the rack plate 14, which is symmetrically fixed at its bottom, moves synchronously. The teeth of the rack plate 14 mesh with the gears 15 fixed at both ends of the rotating rod 16, converting the linear motion of the rack plate 14 into the rotational motion of the gears 15. The gears 15 drive the filter plate 5 to swing synchronously around the rotating rod 16 as the rotation center. The filter plate 5 will eventually rotate to a horizontally parallel state and will still be located directly above the guide plate 3. Therefore, after the cleaning component cleans the mesh of the filter plate 5, the impurities will still fall onto the upper surface of the guide plate 3. At this time, the inclined state of the guide plate 3 changes, and the impurities will flow into the left space inside the processing box 1 for magnetic separation and classification.

[0031] like Figures 3 to 4 As shown, the shaft of the isolation shaft seat 2 is rotatably connected to the side wall of the processing box 1. External rods 18 are fixedly connected to both ends of the shaft of the isolation shaft seat 2. Restriction rods 17 are symmetrically fixedly connected to the outer wall of the rotating rod 16. One end of the restriction rod 17 is in contact with the top end of the external rod 18. Arc-shaped slides 19 are symmetrically fixedly connected to the side of the isolation shaft seat 2. Arc-shaped sliders 21 are slidably connected to the inner wall of the arc-shaped slides 19. One side of the arc-shaped sliders 21 is fixedly connected to both sides of the diversion plate 3. Torsion spring rods 20 are fixedly connected to the bottom of the arc-shaped sliders 21.

[0032] During operation: In the initial state, the guide plate 3 is tilted to the right, the arc-shaped slider 21 is located at the uppermost end of the arc-shaped slide 19, and the torsion spring rod 20 is in a compressed state; at this time, the top of the external rod 18 is in contact with the end of the arc-shaped slide 19, and with the limiting action of the limiting rod 17, the guide plate 3 remains stable under the elastic force of the torsion spring rod 20 and the solution pressure, ensuring that the filter plate 5 is always in close contact with the upper surface of the guide plate 3, and the solution can flow stably along the inclined surface of the guide plate 3; when the rotating rod 16 drives the filter plate 5 to rotate to a horizontally parallel state, the limiting rod 17 rotates synchronously. It gradually detaches from the external rod 18; after losing its restraint, the torsion spring rod 20 releases its elastic force to push the arc-shaped slider 21 to slide along the inner wall of the arc-shaped slide block 19 to the other end, causing the diversion plate 3 to tilt to the left, thus achieving the switching of the inclined state; when the blocking plate 8 moves in the reverse direction to reset and reopen the feeding hopper 4 channel, the gear 15 drives the rotating rod 16 to rotate in the reverse direction, and the limiting rod 17 rotates accordingly and re-presses the external rod 18, forcing the diversion plate 3 to return to the initial state of tilting to the right. The entire process achieves automatic switching and stable maintenance of the angle of the diversion plate 3 through mechanical linkage.

[0033] like Figures 6 to 7 As shown, the cleaning assembly includes a lifting plate 24, and a number of insertion rods 25 are fixedly connected to the bottom of the lifting plate 24. The arrangement of the insertion rods 25 corresponds to the arrangement of the mesh of the filter plate 5. A squeezing assembly for driving the lifting plate 24 to move downward is provided above the lifting plate 24.

[0034] During operation: When the filter plate 5 rotates to a horizontally parallel state, it is perfectly aligned with the lifting plate 24. At this time, each insertion rod 25 corresponds to a mesh hole in the filter plate 5. After the blocking plate 8 moves horizontally to complete the blocking of the material hopper 4 channel, it continues to move in the original direction and maintains the blocking state. This action simultaneously triggers the extrusion assembly to start. The extrusion assembly drives the lifting plate 24 to move vertically downward, so that the insertion rod 25 is accurately inserted into the mesh hole of the filter plate 5. The insertion surface of the insertion rod 25 is the non-impurity interception side, and the impurities in the mesh hole will be easily pushed out, thereby achieving the undamaged removal of impurities embedded in the mesh hole and avoiding damage to the structure of the filter plate 5.

[0035] like Figures 6 to 7As shown, the extrusion assembly includes an extrusion block 23, which is fixedly connected to the top of the lifting plate 24. An extrusion block 22 is fixedly connected to one side of the support frame 10. A limit block 26 is fixedly connected to one side of the extrusion block 23. A limit slider 27 is fixedly installed on the side wall of the processing box 1. A slide rod 28 is fixedly connected to the inner wall of the limit slider 27. The limit block 26 and the slide rod 28 are slidably connected. A spring 29 is fixedly connected to the bottom of the limit block 26. The end of the spring 29 away from the limit block 26 is fixedly connected to the bottom surface of the inner wall of the limit slider 27.

[0036] During operation: In the initial state, the first extrusion block 22 and the second extrusion block 23 on the top of the lifting plate 24 are separated. When the support frame 10 moves laterally under the action of the drive device, it will drive the first extrusion block 22 to move synchronously. The first extrusion block 22 gradually approaches the second extrusion block 23. When the two surfaces come into contact, the inclined surface of the first extrusion block 22 applies downward pressure to the second extrusion block 23, overcoming the elastic force of the first spring 29, and pushing the limit block 26 to slide down along the slide rod 28, thereby driving the lifting plate 24 to move vertically downward. At the same time, the insertion rod 25 at the bottom of the lifting plate 24 is precisely inserted into the mesh of the filter plate 5 in a horizontally parallel state, completing the impurity cleaning action. When the support frame 10 moves in the opposite direction to reset, the first extrusion block 22 and the second extrusion block 23 separate, the first spring 29 releases elastic potential energy, and pushes the lifting plate 24 upward to reset through the limit block 26. The insertion rod 25 is pulled out from the mesh of the filter plate 5, restoring the initial state.

[0037] like Figures 8 to 9 As shown, the magnetic sorting assembly includes a magnetic plate 30, which is fixedly connected to the bottom surface of the processing box 1. A guide plate 31 is provided on one side of the magnetic plate 30, and an electromagnetic block 33 is attached to the other side of the guide plate 31. A pull-out assembly that drives the electromagnetic block 33 to move is provided on one side of the electromagnetic block 33. A collection box 1 40 and a collection box 2 41 are placed on the bottom surface inside the processing box 1.

[0038] During operation: In the initial state, the electromagnetic block 33 is attached to one side of the magnetic plate 30, and the guide plate 3 is tilted to the left. Impurities on the inclined surface will fall to the other side of the magnetic plate 30. The magnetic plate 30 acts as a medium to adsorb metallic substances in the impurities, while ordinary impurities will fall onto the inclined surface of the guide plate 31 and fall along the inclined surface of the guide plate 31 into the collection box 41 for collection. When it is necessary to process the metallic impurities adsorbed on the side of the magnetic plate 30, the electromagnetic block 33 is moved away from the magnetic plate 30 by pulling the component. Then, the adsorption force of the magnetic plate 30 on the adsorbed metallic impurities will gradually weaken until it can no longer adsorb metallic impurities. When the electromagnetic block 33 moves away, it will also drive the guide plate 31 to rotate. The guide plate 31 rotates to a vertical state, changing the direction of the guided material. The metallic impurities adsorbed on the side of the magnetic plate 30 will fall into the collection box 40 for collection.

[0039] like Figures 8 to 9 As shown, the pull-out assembly includes a guide seat 32, which is fixedly connected to the side of the processing box 1. An electromagnetic block 33 is slidably connected to the inner wall of the guide seat 32. A pull rod 34 is inserted into the inner wall of the guide seat 32. One end of the pull rod 34 is fixedly connected to one side of the electromagnetic block 33. A spring 35 is fixedly connected between the electromagnetic block 33 and the inner wall of the guide seat 32. A rotating rod 36 is fixedly connected to the inner wall of the guide plate 31. The outer wall of the rotating rod 36 is rotatably connected to the side wall of the processing box 1. Gears 37 are fixedly connected to both ends of the rotating rod 36. Fixing rods 39 are fixedly connected to both ends of the pull rod 34. A rack plate 38 is fixedly connected to one side of the fixing rod 39. The teeth of the rack plate 38 can mesh with the teeth of the gears 37.

[0040] During operation: Electromagnetic block 33 is pressed tightly against magnetic plate 30 under the elastic force of spring 35. At this time, pull rod 34 is in the guide seat 32 closest to magnetic plate 30. Since the fixing rods 39 at both ends of pull rod 34 mesh with gear 37 through rack plate 38, guide plate 31 is locked in an inclined state, allowing ordinary impurities to fall smoothly into collection box 41. When pull rod 34 is pulled outward, electromagnetic block 33 slides along the inner wall of guide seat 32 and compresses spring 35. The fixing rods 39 at both ends of pull rod 34 drive rack plate 38 to move linearly, driving gear 37 to rotate through tooth meshing. Gear 37 drives guide plate 31 to rotate vertically through rotating rod 36, gradually closing. In the ordinary impurity sliding channel, when the pull rod 34 is pulled to the outermost end, the electromagnetic block 33 is completely separated from the magnetic plate 30, the magnetic force of the magnetic plate 30 disappears, and the metal impurities adsorbed on its surface fall off under the action of gravity; at this time, the guide plate 31 has rotated to the vertical state, and the metal impurities fall directly into the collection box 40; at the same time, the spring 35 is in the maximum compression state, storing elastic potential energy; after the pull rod 34 is released, the spring 35 releases elastic potential energy, pushing the electromagnetic block 33 to move towards the magnetic plate 30, and the pull rod 34 is simultaneously reset; the rack plate 38 moves in the opposite direction to drive the gear 37 to reverse, so that the guide plate 31 rotates back to the tilted state, restoring the guiding function for ordinary impurities, and the system returns to the initial state.

[0041] A method for extracting pure zinc solution from zinc oxide, comprising the following steps: S1: Preliminary solution treatment: After the zinc oxide raw material is crushed, it is subjected to acid leaching treatment and neutralization precipitation treatment in sequence. The pH value is adjusted so that impurities such as iron and aluminum are precipitated out in the form of hydroxides. S2: Solution injection and preliminary filtration: After neutralization and precipitation, the treated zinc-containing acid leaching solution is injected into the treatment tank 1 through the feed hopper 4. The solution flows downward along the inclined surface of the guide plate 3 under the action of gravity. The filter plate 5 intercepts particulate impurities. The filtered solution enters the right space from the right end of the guide plate 3. During the continuous filtration process, the clear solution accumulated in the right space is transported to the extraction device through the liquid extraction pipe 6 for the next extraction process. S3: Cut off solution flow: After the filtration process is completed, the cut-off component is activated to block the channel of the feed hopper 4 and prevent the solution from continuing to flow in; S4: Change of filter plate rotation and diversion plate 3 tilt direction: When the cut-off component is started, the steering component is triggered to drive the filter plate 5 to rotate to a horizontal parallel state, and the diversion plate 3 can be tilted to the left to achieve the switching of the inclined state. S5: Filter plate mesh cleaning: After the blockage plate 8 moves laterally to complete the blockage of the feeding hopper 4 channel, it continues to move in the original direction and maintains the blockage state. At the same time, the extrusion component is triggered to start. The extrusion component pushes out the impurities embedded in the mesh without damage, and the impurities fall onto the upper surface of the diversion plate 3. S6: Impurities flow into the magnetic separation and screening component: The magnetic plate 30 serves as a medium to adsorb metallic substances in the impurities. Ordinary impurities fall onto the inclined surface of the guide plate 31 and fall along the inclined surface of the guide plate 31 into the interior of the collection box 41 for collection. S7: Metal impurities are separated from ordinary impurities and collected; through the pull-out assembly, the electromagnetic block 33 is completely separated from the magnetic plate 30, the magnetic force of the magnetic plate 30 disappears, and the metal impurities adsorbed on its surface fall off under the action of gravity. At this time, the guide plate 31 has rotated to a vertical state, and the metal impurities fall directly into the collection box 40.

[0042] A method for extracting pure zinc solution for zinc oxide production, comprising a diversion component and a cleaning component, specifically includes the following steps: M1: When the support frame 10 moves horizontally under the drive of the cutting component, the rack plate 14 fixed symmetrically at its bottom moves synchronously. The teeth of the rack plate 14 mesh with the gears 15 fixed at both ends of the rotating rod 16, converting the linear motion of the rack plate 14 into the rotational motion of the gears 15. The gears 15 drive the filter plate 5 to swing synchronously around the rotating rod 16 as the rotation center. The filter plate 5 will eventually rotate to a horizontal parallel state and will still be located directly above the guide plate 3. Therefore, after the cleaning component cleans the mesh of the 5, the impurities will still fall onto the upper surface of the guide plate 3. At this time, the inclined state of the guide plate 3 changes, and the impurities will flow into the left space inside the processing box 1 for magnetic separation and classification. M2: When the filter plate 5 rotates to a horizontally parallel state, it is exactly vertically aligned with the lifting plate 24. At this time, each insertion rod 25 corresponds to a mesh hole of the filter plate 5. After the blocking plate 8 moves horizontally to complete the blocking of the material hopper 4 channel, it continues to move in the original direction and maintains the blocking state. This action simultaneously triggers the extrusion assembly to start. The extrusion assembly drives the lifting plate 24 to move vertically downward, so that the insertion rod 25 is accurately inserted into the mesh hole of the filter plate 5. The insertion surface of the insertion rod 25 is the non-impurity interception side, and the impurities in the mesh hole will be easily pushed out, thereby realizing the undamaged removal of impurities embedded in the mesh hole and avoiding damage to the structure of the filter plate 5.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pure zinc solution extraction device for zinc oxide production, comprising a processing tank, characterized in that: An isolation shaft seat is fixedly installed inside the processing box. A flow guide plate is fixedly connected to the outer wall of the shaft of the isolation shaft seat. A feeding hopper is fixedly connected to the top of the processing box. A filter plate is installed above the flow guide plate. A liquid extraction pipe is fixedly connected to one side of the processing box. An extraction device is fixedly connected to the end of the liquid extraction pipe away from the processing box. A cutting-off assembly is installed outside the feeding hopper. The cutting-off assembly includes a blocking plate that can move laterally to block the channel of the feeding hopper. The blocking plate is slidably connected to the inner wall of the feeding hopper. A steering assembly is installed on one side of the blocking plate, which allows the filter plate to rotate. A cleaning assembly is installed above the filter plate to clean its mesh. A magnetic screening assembly is installed on the other side of the processing box.

2. The pure zinc solution extraction equipment for zinc oxide production according to claim 1, characterized in that: The cutting-off assembly includes a movable frame plate, a blocking plate fixedly connected to one side of the movable frame plate, a support frame fixedly connected to the side of the movable frame plate away from the blocking plate, inner sliders fixedly connected to the bottom of both ends of the support frame, fixed slides symmetrically fixedly connected to the top of the processing box, telescopic rods fixedly connected to the inner walls of the fixed slides, the output end of the telescopic rods fixedly connected to one side of the inner sliders, and the inner sliders slidingly connected to and adapted to the inner walls of the fixed slides.

3. The pure zinc solution extraction equipment for zinc oxide production according to claim 2, characterized in that: The steering assembly includes a rotating rod, with one end of the filter plate being fixedly connected to the outer wall of the rotating rod. The outer wall of the rotating rod is rotatably connected to the side of the treatment box. Gears are fixedly connected to both ends of the rotating rod. A rack plate is symmetrically fixedly connected to the bottom of the support frame. The teeth of the rack plate can mesh with the teeth of the gears. The end of the filter plate away from the rotating rod is in contact with the surface of the guide plate.

4. The pure zinc solution extraction equipment for zinc oxide production according to claim 3, characterized in that: The shaft of the isolation shaft seat is rotatably connected to the side wall of the treatment box. External rods are fixedly connected to both ends of the shaft of the isolation shaft seat. Restriction rods are symmetrically fixedly connected to the outer wall of the rotating rod. One end of the restriction rod is in contact with the top of the external rod. Arc-shaped slides are symmetrically fixedly connected to the side of the isolation shaft seat. Arc-shaped sliders are slidably connected to the inner wall of the arc-shaped slides. One side of the arc-shaped slider is fixedly connected to both sides of the diversion plate. Torsion spring rods are fixedly connected to the bottom of the arc-shaped sliders.

5. The pure zinc solution extraction equipment for zinc oxide production according to claim 4, characterized in that: The cleaning assembly includes a lifting plate, with several insertion rods fixedly connected to the bottom of the lifting plate. The arrangement of the insertion rods corresponds to the arrangement of the mesh of the filter plate. An extrusion assembly is installed above the lifting plate to drive it downward.

6. The pure zinc solution extraction equipment for zinc oxide production according to claim 5, characterized in that: The extrusion assembly includes an extrusion block two, which is fixedly connected to the top of the lifting plate. An extrusion block one is fixedly connected to one side of the support frame. A limit block is fixedly connected to one side of the extrusion block two. A limit slider is fixedly installed on the side wall of the processing box. A sliding rod is fixedly connected to the inner wall of the limit slider. The limit block and the sliding rod are slidably connected. A spring one is fixedly connected to the bottom of the limit block. The end of the spring one away from the limit block is fixedly connected to the bottom surface of the inner wall of the limit slider.

7. The pure zinc solution extraction equipment for zinc oxide production according to claim 6, characterized in that: The magnetic sorting assembly includes a magnetic plate, which is fixedly connected to the bottom of the processing box. A guide plate is provided on one side of the magnetic plate, and an electromagnetic block is attached to the other side of the guide plate. A pull-out assembly that drives the electromagnetic block to move is provided on one side of the electromagnetic block. Collection box one and collection box two are placed on the bottom of the inside of the processing box.

8. The pure zinc solution extraction equipment for zinc oxide production according to claim 7, characterized in that: The pull-out assembly includes a guide seat, which is fixedly connected to the side of the processing box. An electromagnetic block is slidably connected to the inner wall of the guide seat. A pull rod is inserted into the inner wall of the guide seat. One end of the pull rod is fixedly connected to one side of the electromagnetic block. A second spring is fixedly connected between the electromagnetic block and the inner wall of the guide seat. A second rotating rod is fixedly connected to the inner wall of the guide plate. The outer wall of the second rotating rod is rotatably connected to the side wall of the processing box. Gears are fixedly connected to both ends of the second rotating rod. Fixed rods are fixedly connected to both ends of the pull rod. A rack plate is fixedly connected to one side of the fixed rod. The teeth of the rack plate can mesh with the teeth of the second gear.

9. A method for extracting pure zinc solution from zinc oxide, wherein the method uses the pure zinc solution extraction equipment for zinc oxide production as described in any one of claims 1-8. Includes the following steps, characterized in that: S1: Preliminary solution treatment: After the zinc oxide raw material is crushed, it is subjected to acid leaching treatment and neutralization precipitation treatment in sequence. The pH value is adjusted so that iron and aluminum impurities are precipitated out in the form of hydroxides. S2: Solution Injection and Preliminary Filtration: After neutralization and precipitation, the treated zinc-containing acid leaching solution is injected into the treatment tank through the feed hopper. Under the action of gravity, the solution flows downward along the inclined surface of the guide plate. The filter plate intercepts particulate impurities. The filtered solution enters the right space from the right end of the guide plate. During the continuous filtration process, the clear solution accumulated in the right space is transported to the extraction device through the liquid extraction pipe for the next extraction process. S3: Cut off solution flow: After filtration is completed, activate the cut-off component to block the channel of the feed hopper and prevent the solution from continuing to flow in; S4: Change of filter plate rotation and diversion plate tilt direction: When the cut-off component is started, the steering component is triggered to drive the filter plate to rotate to a horizontal parallel state, and the diversion plate can be tilted to the left to achieve the switching of the inclined state. S5: Filter plate mesh cleaning: After the blockage plate moves laterally to block the material hopper channel, it continues to move in the original direction and maintains the blockage state. At the same time, the extrusion component is triggered to start. The extrusion component pushes out the impurities embedded in the mesh without damage. The impurities fall onto the surface of the guide plate. S6: Impurities flow into the magnetic separation and screening component: The magnetic plate acts as a medium to adsorb metallic substances in the impurities. Ordinary impurities fall onto the inclined surface of the guide plate and fall along the inclined surface of the guide plate into the interior of the collection box two for collection. S7: Separate and collect metallic impurities from ordinary impurities; By pulling out the assembly, the electromagnetic block is completely separated from the magnetic plate. The magnetic force of the magnetic plate disappears, and the metal impurities adsorbed on its surface fall off under the action of gravity. At this time, the guide plate has rotated to a vertical position, and the metal impurities fall directly into the collection box one.

10. The method for extracting pure zinc solution for producing zinc oxide according to claim 9, characterized in that: The steering and cleanup components specifically include the following steps: M1: When the support frame moves horizontally under the drive of the cutting component, the rack plate 1, which is symmetrically fixed at its bottom, moves synchronously. The teeth of the rack plate 1 mesh with the gears fixed at both ends of the rotating rod 1, converting the linear motion of the rack plate 1 into the rotational motion of the gear. The gear drives the filter plate to swing synchronously around the rotating rod 1 as the rotation center. The filter plate will eventually rotate to a horizontally parallel state and will still be located directly above the guide plate. Therefore, after the cleaning component cleans the mesh, the impurities will still fall onto the upper surface of the guide plate. At this time, the inclined state of the guide plate changes, and the impurities will flow into the left space inside the processing box for magnetic separation and classification. M2: When the filter plate rotates to a horizontally parallel state, it is perfectly aligned with the lifting plate. At this time, each insertion rod corresponds to a mesh hole in the filter plate. After the blocking plate moves horizontally to complete the blocking of the discharge hopper channel, it continues to move in the original direction and maintains the blocking state. This action simultaneously triggers the extrusion assembly to start. The extrusion assembly drives the lifting plate to move vertically downward, so that the insertion rod is accurately inserted into the mesh hole of the filter plate. The insertion surface of the insertion rod is the non-impurity interception side, and the impurities in the mesh hole will be easily pushed out, thereby achieving the goal of removing the impurities embedded in the mesh hole without damage and avoiding damage to the filter plate structure.

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