A device for slurry mixing and leaching of copper-containing silicon powder

Abstract

The application relates to the technical field of pulp conditioning and leaching equipment, and discloses a copper-containing silicon powder pulp conditioning and leaching device, which comprises an outer heat preservation cylinder and a pulp conditioning and leaching cylinder fixedly installed in the outer heat preservation cylinder, a plurality of annular electric heating pipes are fixedly installed on the outer cylinder wall of the pulp conditioning and leaching cylinder in a uniform distribution mode, a driving assembly is arranged at the top of the outer heat preservation cylinder, a stirring and uniform material assembly is arranged on the driving assembly, the driving assembly is used for controlling the vertical reciprocating motion and autorotation of the stirring and uniform material assembly, and the stirring and uniform material assembly comprises a vertical shaft, a plurality of connecting blocks, a plurality of stirring paddles and a plurality of groups of bulk material blades. The application has the following advantages and effects: the copper-containing silicon powder can be fully and comprehensively cut and scattered, so that particle agglomeration is avoided; the copper-containing silicon powder can be ensured to be fully contacted with sulfuric acid leaching agent, uniformly mixed and reacted, the leaching efficiency and leaching quality are greatly improved, and the leached ore pulp can be subjected to solid-liquid separation, which helps the separated copper-containing leaching liquid to enter a subsequent purification process.

Description

Technical Field

[0001] This application relates to the field of slurry preparation and leaching equipment, and in particular to a copper-containing silicon powder slurry preparation and leaching device. Background Technology

[0002] In the hydrometallurgical recovery process of copper-containing silicon powder, slurry leaching is one of the commonly used methods. The principle of slurry leaching is to mix solid copper-containing silicon powder with leaching agents such as sulfuric acid to form a uniform slurry, and to transfer copper elements from solid particles to the liquid phase through chemical reaction. The efficiency and quality of this process directly affect the copper recovery rate and the cost of subsequent purification processes.

[0003] While existing copper-containing silica powder slurry leaching devices can meet the basic requirements of slurry leaching, they still have at least the following shortcomings in actual use: traditional devices mostly use unidirectional stirring (such as only horizontal rotation), which makes it difficult to fully disperse easily agglomerated particles such as copper-containing silica powder. This results in an uneven slurry formed by mixing copper-containing silica powder and sulfuric acid leaching agent, uneven distribution of solid particles in the slurry, and some copper minerals failing to effectively contact the sulfuric acid leaching agent, leading to low leaching efficiency, incomplete reaction, and poor leaching quality.

[0004] Therefore, we propose a copper-containing silicon powder slurry leaching device to solve the above problems. Utility Model Content

[0005] The purpose of this application is to provide a copper-containing silicon powder slurry leaching device, which can fully and completely cut and disperse the copper-containing silicon powder to avoid particle agglomeration, and can ensure that the copper-containing silicon powder and sulfuric acid leaching agent are fully contacted, mixed evenly and react, thereby greatly improving the leaching efficiency and leaching quality.

[0006] The above-mentioned technical objective of this application is achieved through the following technical solution: a copper-containing silicon powder slurry leaching device, comprising an outer insulation cylinder and a slurry leaching cylinder installed and fixed inside the outer insulation cylinder. Multiple uniformly distributed annular electric heating tubes are fixedly installed on the outer wall of the slurry leaching cylinder. A driving assembly is provided at the top of the outer insulation cylinder, and a stirring and homogenizing assembly is provided on the driving assembly. The driving assembly is used to control the vertical reciprocating motion and rotation of the stirring and homogenizing assembly. The stirring and homogenizing assembly includes a vertical shaft, multiple connecting blocks, multiple stirring paddles, and multiple sets of material-distributing blades. The vertical shaft is located inside the slurry leaching cylinder. Multiple connecting blocks are fixedly installed on the vertical shaft and are uniformly distributed. Multiple stirring paddles are respectively fixedly installed on corresponding connecting blocks. Multiple sets of material-distributing blades are respectively located at the bottom of corresponding stirring paddles. The material-distributing blades include multiple longitudinal blades and multiple transverse blades. Multiple longitudinal blades are fixedly installed at the bottom of the stirring paddles and are evenly distributed. Multiple transverse blades are fixedly installed on multiple longitudinal blades. The longitudinal blades and transverse blades are arranged perpendicularly.

[0007] A further feature of this application is that the stirring paddle has a plurality of liquid-permeable holes arranged in an array.

[0008] A further configuration of this application is as follows: the drive assembly includes a motor, a reciprocating screw, a lifting plate, a bearing seat, a lifting column, a driven bevel gear, a positioning plate, a drive shaft, a driving bevel gear, a spur gear, and a rack. The motor is fixedly installed on the top of the outer insulation cylinder, the reciprocating screw is fixedly installed on the output shaft end of the motor, the lifting plate is threaded onto the reciprocating screw, the bearing seat is fixedly installed on the bottom of the lifting plate, the lifting column is rotatably installed on the bottom of the bearing seat, the bottom end of the lifting column extends into the slurry leaching cylinder, the top end of the vertical shaft is fixedly connected to the bottom end of the lifting column, the driven bevel gear is fixedly installed on the lifting column and located above the outer insulation cylinder, the positioning plate is fixedly installed on the bottom of the lifting plate, the drive shaft is rotatably installed on the positioning plate, the driving bevel gear and the spur gear are respectively fixedly installed on both ends of the drive shaft, the driving bevel gear meshes with the driven bevel gear, and the rack is fixedly installed on the top of the outer insulation cylinder and located behind the spur gear, the spur gear meshes with the rack.

[0009] A further feature of this application is that a vertical guide rod is fixedly installed on the top of the outer insulation cylinder, and the lifting plate is slidably sleeved on the vertical guide rod.

[0010] A further provision of this application is that a lower limit block and an upper limit block are fixedly installed on one side of the vertical guide rod, with the lower limit block located below the lifting plate and the upper limit block located above the lifting plate.

[0011] A further feature of this application is that the top of the outer insulation cylinder and the slurry leaching cylinder are fixedly connected by the same vertical guide sleeve, and the bottom end of the lifting column slides through the vertical guide sleeve.

[0012] A further provision of this application is that: a feeding pipe is fixedly installed on the top of the outer insulation cylinder, an end cap is threaded on the top of the feeding pipe, the bottom end of the feeding pipe is connected to the interior of the slurry leaching cylinder, a discharge pipe is fixedly installed at the center of the bottom of the slurry leaching cylinder, and an electromagnetic discharge valve is fixedly installed at the bottom end of the discharge pipe.

[0013] A further feature of this application is that a separation box with an open top is fixedly installed at the bottom of the outer insulation cylinder, and both the discharge pipe and the electromagnetic discharge valve are located inside the separation box. A filter screen is fixedly installed inside the separation box. The filter screen has an arc-shaped structure that convexes upward from both sides to the middle. A drain pipe is fixedly connected to the bottom of the separation box, and an electromagnetic drain valve is fixedly installed on the drain pipe.

[0014] A further feature of this application is that a slag removal port located above the filter screen is provided on the inner front wall of the separation box, and a sealing door is fixedly installed on the outer front wall of the separation box by screws, the sealing door being compatible with the slag removal port.

[0015] A further feature of this application is that: a vent pipe is fixedly installed on the top of the outer insulation cylinder, an electromagnetic vent valve is fixedly installed on the vent pipe, the bottom end of the vent pipe is connected to the inside of the slurry leaching cylinder, and a pressure sensor and a temperature sensor are fixedly installed inside the slurry leaching cylinder.

[0016] This application includes at least one of the following beneficial technical effects:

[0017] 1. This application utilizes a drive component to control the vertical reciprocating motion and rotation of the mixing and homogenizing component. Under the vertical reciprocating motion and rotation state of the mixing and homogenizing component, which consists of a vertical shaft, multiple connecting blocks, multiple stirring paddles, and multiple sets of material dispersing blades, the copper-containing silicon powder can be fully and comprehensively cut and dispersed, avoiding particle agglomeration. This ensures that the copper-containing silicon powder and the sulfuric acid leaching agent are fully contacted, mixed evenly, and react, greatly improving leaching efficiency and leaching quality.

[0018] 2. The present application designs a separation box and filter screen, which can perform solid-liquid separation on the leached slurry, and help the separated copper-containing leaching solution enter the subsequent purification process.

[0019] 3. This application is designed with a slag removal port and a sealing door to facilitate the removal of leaching residue from the filter screen. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of this embodiment.

[0021] Figure 2 This is a front view sectional three-dimensional structural schematic diagram of this embodiment.

[0022] Figure 3 This is a three-dimensional structural diagram of the mixing and homogenizing component in this embodiment.

[0023] Figure 4 yes Figure 2 A magnified structural diagram of part A in the middle.

[0024] In the diagram, 1. External insulation cylinder; 2. Slurry leaching cylinder; 3. Annular electric heating tube; 4. Vertical shaft; 5. Connecting block; 6. Stirring paddle; 7. Longitudinal blade; 8. Transverse blade; 9. Liquid permeation hole; 10. Motor; 11. Reciprocating screw; 12. Lifting plate; 13. Shaft seat; 14. Lifting column; 15. Driven bevel gear; 16. Positioning plate; 17. Drive shaft; 18. Active bevel gear; 19. Spur gear; 20. Rack; 21. Vertical guide rod; 22. Lower limit block; 23. Upper limit block; 24. Feeding pipe; 25. End cap; 26. Discharge pipe; 27. Electromagnetic discharge valve; 28. Separation box; 29. ​​Filter screen; 30. Drain pipe; 31. Electromagnetic drain valve; 32. Sealing door; 33. Venting pipe; 34. Electromagnetic venting valve. Detailed Implementation

[0025] The technical solution of this application will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0026] See Figure 1 , Figure 2 , Figure 3 and Figure 4 This application provides a copper-containing silicon powder slurry leaching device, including an outer insulation cylinder 1 and a slurry leaching cylinder 2 installed and fixed inside the outer insulation cylinder 1. Multiple uniformly distributed annular electric heating tubes 3 are fixedly installed on the outer wall of the slurry leaching cylinder 2. The design of the annular electric heating tubes 3 can uniformly heat the slurry composed of copper-containing silicon powder and sulfuric acid leaching agent, providing a suitable temperature environment for the leaching reaction, promoting the dissolution of insoluble copper (such as silicon-bonded copper and copper sulfide), and improving the copper leaching rate. The slurry leaching cylinder 2 is made of high-alumina corundum material, which not only has excellent... The annular electric heating tube 3 is corrosion-resistant and has good thermal conductivity, allowing more heat generated by the tube to be transferred to the slurry through the leaching cylinder 2. The outer insulation cylinder 1 reduces heat loss. The annular electric heating tube 3 is a temperature-adjustable type, with the heating value set according to the heating requirements of the slurry, providing a suitable temperature environment for the leaching reaction, promoting the dissolution of insoluble copper (such as silicon-bonded copper and copper sulfide), and increasing the copper leaching rate. A drive assembly is installed at the top of the outer insulation cylinder 1, and a stirring and homogenizing assembly is installed on the drive assembly. The drive assembly is used to control the stirring... The mixing assembly undergoes vertical reciprocating motion and rotation. The mixing assembly includes a vertical shaft 4, multiple connecting blocks 5, multiple stirring paddles 6, and multiple sets of material-distributing blades. The vertical shaft 4 is located inside the slurry leaching cylinder 2. The multiple connecting blocks 5 are all fixedly installed on the vertical shaft 4 and are evenly distributed. The multiple stirring paddles 6 are respectively fixedly installed on their corresponding connecting blocks 5. The multiple sets of material-distributing blades are respectively located at the bottom of their corresponding stirring paddles 6. The material-distributing blades include multiple longitudinal blades 7 and multiple transverse blades 8. The multiple longitudinal blades 7 are all fixedly installed at the bottom of the stirring paddles 6 and are evenly distributed. Each transverse blade 8 is fixedly mounted on multiple longitudinal blades 7. The longitudinal blades 7 and transverse blades 8 are arranged perpendicularly. With the synergistic action of the longitudinal blades 7 and transverse blades 8, the copper-containing silicon powder can be dispersed, so that the copper-containing silicon powder and sulfuric acid leaching agent are mixed into a uniform slurry. By adopting a combined drive method of vertical reciprocating motion and rotation of the stirring and homogenizing component, the copper-containing silicon powder can be fully cut and dispersed, avoiding particle agglomeration, ensuring that the copper-containing silicon powder and sulfuric acid leaching agent are fully contacted, mixed and reacted uniformly, which greatly improves the leaching efficiency and leaching quality.

[0027] In this embodiment, the stirring paddle 6 has multiple liquid permeation holes 9 arranged in an array. The design of the liquid permeation holes 9 can reduce the resistance when the stirring paddle 6 rotates, and enhance the turbulence of the slurry, so that the copper-containing silicon powder solid particles can be in uniform contact with the sulfuric acid leaching agent, which can greatly improve the reaction rate and leaching uniformity, and reduce copper residue caused by insufficient mixing.

[0028] In this embodiment, the drive assembly includes a motor 10, a reciprocating screw 11, a lifting plate 12, a shaft seat 13, a lifting column 14, a driven bevel gear 15, a positioning plate 16, a drive shaft 17, a driving bevel gear 18, a spur gear 19, and a rack 20. The motor 10 is fixedly installed on the top of the outer insulation cylinder 1. The reciprocating screw 11 is fixedly installed on the output shaft end of the motor 10. The lifting plate 12 is threaded onto the reciprocating screw 11. The shaft seat 13 is fixedly installed on the bottom of the lifting plate 12. The lifting column 14 is rotatably installed on the bottom of the shaft seat 13. The bottom end of the lifting column 14 extends into the slurry leaching cylinder 2. The top end of the vertical shaft 4 is fixedly connected to the bottom end of the lifting column 14. The driven bevel gear 15 is fixedly sleeved on the lifting column 14 and located above the outer insulation cylinder 1. The positioning plate 16 is fixedly installed on the bottom of the lifting plate 12. The drive shaft 17 is rotatably installed on the positioning plate 17. On the 6th, the active bevel gear 18 and the spur gear 19 are respectively fixedly installed at both ends of the drive shaft 17. The active bevel gear 18 meshes with the driven bevel gear 15. The rack 20 is fixedly installed on the top of the outer insulation cylinder 1 and located behind the spur gear 19. The spur gear 19 meshes with the rack 20. The motor 10 is used to control the rotation of the reciprocating screw 11. By using the threaded connection between the lifting plate 12 and the reciprocating screw 11, the lifting plate 12 can be controlled to perform vertical reciprocating motion, so that the shaft seat 13, the lifting column 14, the driven bevel gear 15, the positioning plate 16, the drive shaft 17, the active bevel gear 18, the spur gear 19, and the stirring and homogenizing assembly can perform vertical reciprocating motion. By using the meshing transmission of the spur gear 19 and the rack 20, and in conjunction with the meshing transmission of the active bevel gear 18 and the driven bevel gear 15, the lifting column 14 can be controlled to drive the stirring and homogenizing assembly to rotate.

[0029] In this embodiment, a vertical guide rod 21 is fixedly installed on the top of the outer insulation cylinder 1, and the lifting plate 12 is slidably sleeved on the vertical guide rod 21. The design of the vertical guide rod 21 can guide the movement direction of the lifting plate 12, ensuring that the lifting plate 12 can smoothly perform reciprocating motion in the vertical direction.

[0030] In this embodiment, a lower limit block 22 and an upper limit block 23 are fixedly installed on one side of the vertical guide rod 21. The lower limit block 22 is located below the lifting plate 12, and the upper limit block 23 is located above the lifting plate 12. The design of the lower limit block 22 and the upper limit block 23 can limit the lifting stroke of the lifting plate 12, ensuring that the lifting plate 12 moves up and down between the lower limit block 22 and the upper limit block 23.

[0031] In this embodiment, the top of the outer insulation cylinder 1 and the slurry leaching cylinder 2 are fixedly connected by the same vertical guide sleeve, and the bottom end of the lifting column 14 slides through the vertical guide sleeve. The design of the vertical guide sleeve not only ensures that the lifting column 14 can move vertically smoothly and steadily, but also provides an effective sealing effect at the connection between the lifting column 14 and the slurry leaching cylinder 2.

[0032] In this embodiment, a feeding pipe 24 is fixedly installed on the top of the outer insulation cylinder 1. An end cap 25 is threaded onto the top of the feeding pipe 24. The bottom end of the feeding pipe 24 is connected to the interior of the slurry leaching cylinder 2. A discharge pipe 26 is fixedly installed at the center of the bottom of the slurry leaching cylinder 2. The bottom end of the discharge pipe 26 extends to the outside of the outer insulation cylinder 1 and is fixedly installed with an electromagnetic discharge valve 27. The design of the discharge pipe 26 and the electromagnetic discharge valve 27 allows the leached slurry in the slurry leaching cylinder 2 to be discharged.

[0033] In this embodiment, a separation box 28 with an open top is fixedly installed at the bottom of the outer insulation cylinder 1. The discharge pipe 26 and the electromagnetic discharge valve 27 are both located inside the separation box 28. A filter screen 29 is fixedly installed inside the separation box 28. The filter screen 29 has an arc-shaped structure that convexes upward from both sides to the middle. A drain pipe 30 is fixedly connected to the bottom of the separation box 28. An electromagnetic drain valve 31 is fixedly installed on the drain pipe 30. The filter screen 29 is used to perform solid-liquid separation on the leached slurry, so that the leaching residue remains on the filter screen 29, and the copper-containing leaching solution can be discharged through the drain pipe 30.

[0034] In this embodiment, a slag removal port is provided on the inner front wall of the separation box 28 above the filter screen 29, and a sealing door 32 is fixedly installed on the outer front wall of the separation box 28 by screws. The sealing door 32 is adapted to the slag removal port. The design of the slag removal port and the sealing door 32 makes it convenient to clean the leached residue on the filter screen 29.

[0035] In this embodiment, a vent pipe 33 is fixedly installed on the top of the outer insulation cylinder 1, and an electromagnetic vent valve 34 is fixedly installed on the vent pipe 33. The bottom end of the vent pipe 33 is connected to the inside of the slurry leaching cylinder 2. A pressure sensor and a temperature sensor are fixedly installed inside the slurry leaching cylinder 2. The pressure sensor is used to monitor the pressure value inside the slurry leaching cylinder 2 in real time, and the temperature sensor is used to monitor the temperature value of the slurry inside the slurry leaching cylinder 2 in real time. Harmful gases such as sulfur dioxide may be generated during the leaching reaction. When the pressure value inside the slurry leaching cylinder 2 exceeds a set threshold, the electromagnetic vent valve 34 can be opened, allowing the gas inside the slurry leaching cylinder 2 to be discharged through the vent pipe 33. 3. The end away from the external insulation cylinder 1 is fixedly connected to the inlet end of the external desulfurization equipment. The desulfurization equipment can then be used to desulfurize the gas discharged from the slurry leaching cylinder 2, effectively reducing environmental pollution. The pressure sensor, temperature sensor, electromagnetic venting valve 34, electromagnetic discharge valve 27, electromagnetic liquid discharge valve 31, and motor 10 can all be purchased on the market. The pressure sensor and temperature sensor are electrically connected to an external display screen through wires. The pressure and temperature values ​​monitored by the pressure sensor and temperature sensor can be displayed on the display screen. The wiring connection method and control method are mature technologies in this field and have been fully disclosed. Therefore, they will not be described in detail here.

[0036] In this embodiment, the vertical shaft 4, connecting block 5, multiple stirring paddles 6, longitudinal blade 7, transverse blade 8, lifting column 14, discharge pipe 26, separation box 28, drain pipe 30, sealing door 32 and vertical guide sleeve are all made of ceramic or polytetrafluoroethylene material, and the filter screen 29 is made of polytetrafluoroethylene material, which can withstand long-term corrosion of acidic media such as sulfuric acid and extend its service life.

[0037] With the above structure, when using the copper-containing silicon powder slurry leaching device provided in this application, unscrew the end cap 25 of the feeding pipe 24, and put the copper-containing silicon powder and sulfuric acid leaching agent into the slurry leaching cylinder 2 in proportion (solid-liquid ratio is usually 1:3-1:10) from the feeding pipe 24, and then screw the end cap 25 back on to complete the sealing.

[0038] Next, multiple annular electric heating tubes 3 are started to heat the slurry in the leaching cylinder 2. The motor 10 in the drive assembly is started to run, and the motor 10 drives the reciprocating screw 11 to rotate. Since the lifting plate 12 is threadedly connected to the reciprocating screw 11 and is limited by the vertical guide rod 21, the lifting plate 12 moves vertically back and forth along the vertical guide rod 21, thereby driving the shaft seat 13, the lifting column 14 and the stirring and equalizing assembly (vertical shaft 4, connecting block 5, stirring paddle 6 and dispersing blade) to move vertically back and forth synchronously. When the lifting plate 12 moves vertically back and forth, the meshing transmission action of the spur gear 19 and the rack 20 can drive the drive shaft 17 to rotate. The drive shaft 17 meshes with the driven bevel gear 15 through the engagement of the driving bevel gear 18. The driving column 14 and the vertical shaft 4 rotate, causing the stirring paddle 6, the longitudinal blade 7 and the transverse blade 8 to rotate synchronously. During this process, the longitudinal blade 7 and the transverse blade 8 are arranged vertically and alternately and rotate and move vertically back and forth, which can cut and disperse the copper-containing silicon powder and avoid particle agglomeration. When the stirring paddle 6 rotates and moves vertically back and forth, the liquid permeation hole 9 reduces the resistance and enhances the turbulence of the slurry, so that the copper-containing silicon powder and the sulfuric acid leaching agent can fully contact and mix to form a uniform slurry. Under the synergistic effect of stirring and heating, the copper minerals (such as copper sulfide, copper oxide, etc.) in the copper-containing silicon powder react fully with the sulfuric acid, and the copper ions dissolve into the liquid phase to complete the leaching process, which greatly improves the leaching efficiency and leaching quality.

[0039] After leaching is completed, multiple annular electric heating tubes 3 and motor 10 are turned off, and electromagnetic discharge valve 27 and electromagnetic liquid discharge valve 31 are turned on. The leached slurry is discharged into separation tank 28 through discharge pipe 26. The slurry flows through arc-shaped filter screen 29, so that the leaching residue is intercepted above the filter screen 29. The copper-containing leaching solution passes through the filter screen and is discharged through discharge pipe 30 (controlled by electromagnetic liquid discharge valve 31) to enter the subsequent purification process, thus realizing solid-liquid separation.

[0040] After solid-liquid separation is complete, remove the sealing door 32 to clean out the leaching residue on the filter screen 29.

Claims

1. A copper-containing silicon powder slurry leaching device, characterized in that, The device includes an outer insulation cylinder (1) and a slurry leaching cylinder (2) installed and fixed inside the outer insulation cylinder (1). Multiple evenly distributed annular electric heating tubes (3) are fixedly installed on the outer wall of the slurry leaching cylinder (2). A driving assembly is provided at the top of the outer insulation cylinder (1), and a stirring and equalizing assembly is provided on the driving assembly. The driving assembly is used to control the vertical reciprocating motion and rotation of the stirring and equalizing assembly. The stirring and equalizing assembly includes a vertical shaft (4), multiple connecting blocks (5), multiple stirring paddles (6), and multiple sets of material dispersing blades. The vertical shaft (4) is located inside the slurry leaching cylinder (2). The connecting blocks (5) are all fixedly installed on the vertical shaft (4) and are evenly distributed. The multiple stirring paddles (6) are respectively fixedly installed on the corresponding connecting blocks (5). Multiple sets of material-dispersing blades are respectively set at the bottom of the corresponding stirring paddles (6). The material-dispersing blades include multiple longitudinal blades (7) and multiple transverse blades (8). The multiple longitudinal blades (7) are all fixedly installed at the bottom of the stirring paddles (6) and are evenly distributed. The multiple transverse blades (8) are all fixedly installed on the multiple longitudinal blades (7). The longitudinal blades (7) and the transverse blades (8) are vertically arranged.

2. The copper-containing silicon powder slurry leaching apparatus according to claim 1, characterized in that: The stirring paddle (6) has multiple liquid permeation holes (9) arranged in an array.

3. The copper-containing silicon powder slurry leaching apparatus according to claim 1, characterized in that: The drive assembly includes a motor (10), a reciprocating screw (11), a lifting plate (12), a bearing seat (13), a lifting column (14), a driven bevel gear (15), a positioning plate (16), a drive shaft (17), a driving bevel gear (18), a spur gear (19), and a rack (20). The motor (10) is fixedly installed on the top of the outer insulation cylinder (1). The reciprocating screw (11) is fixedly installed on the output shaft end of the motor (10). The lifting plate (12) is threaded onto the reciprocating screw (11). The bearing seat (13) is fixedly installed on the bottom of the lifting plate (12). The lifting column (14) is rotatably installed on the bottom of the bearing seat (13). The bottom end of the lifting column (14) extends to the slurry leaching cylinder. (2) Inside, the top end of the vertical shaft (4) is fixedly connected to the bottom end of the lifting column (14), the driven bevel gear (15) is fixedly sleeved on the lifting column (14) and located above the outer insulation cylinder (1), the positioning plate (16) is fixedly installed at the bottom of the lifting plate (12), the drive shaft (17) is rotatably installed on the positioning plate (16), the active bevel gear (18) and the spur gear (19) are respectively fixedly installed at both ends of the drive shaft (17), the active bevel gear (18) meshes with the driven bevel gear (15), the rack (20) is fixedly installed at the top of the outer insulation cylinder (1) and located behind the spur gear (19), the spur gear (19) meshes with the rack (20).

4. The copper-containing silicon powder slurry leaching apparatus according to claim 3, characterized in that: A vertical guide rod (21) is fixedly installed on the top of the outer insulation cylinder (1), and the lifting plate (12) is slidably sleeved on the vertical guide rod (21).

5. The copper-containing silicon powder slurry leaching apparatus according to claim 4, characterized in that: A lower limit block (22) and an upper limit block (23) are fixedly installed on one side of the vertical guide rod (21). The lower limit block (22) is located below the lifting plate (12), and the upper limit block (23) is located above the lifting plate (12).

6. The copper-containing silicon powder slurry leaching apparatus according to claim 3, characterized in that: The top of the outer insulation cylinder (1) and the slurry leaching cylinder (2) are fixedly connected by the same vertical guide sleeve, and the bottom end of the lifting column (14) slides through the vertical guide sleeve.

7. The copper-containing silicon powder slurry leaching apparatus according to claim 1, characterized in that: A feeding pipe (24) is fixedly installed on the top of the outer insulation cylinder (1). An end cap (25) is threaded onto the top of the feeding pipe (24). The bottom end of the feeding pipe (24) is connected to the interior of the slurry leaching cylinder (2). A discharge pipe (26) is fixedly installed at the center of the bottom of the slurry leaching cylinder (2). The bottom end of the discharge pipe (26) extends to the outside of the outer insulation cylinder (1) and is fixedly installed with an electromagnetic discharge valve (27).

8. The copper-containing silicon powder slurry leaching apparatus according to claim 7, characterized in that: The bottom of the outer insulation cylinder (1) is fixedly installed with a separation box (28) with an open top. The discharge pipe (26) and the electromagnetic discharge valve (27) are both located inside the separation box (28). A filter screen (29) is fixedly installed inside the separation box (28). The filter screen (29) has an arc-shaped structure that bulges upward from both sides to the middle. The bottom of the separation box (28) is fixedly connected to a drain pipe (30). An electromagnetic drain valve (31) is fixedly installed on the drain pipe (30).

9. The copper-containing silicon powder slurry leaching apparatus according to claim 8, characterized in that: The separation box (28) has a slag removal port located above the filter screen (29) on the inner front wall. A sealing door (32) is fixedly installed on the outer front wall of the separation box (28) by screws. The sealing door (32) is compatible with the slag removal port.

10. The copper-containing silicon powder slurry leaching apparatus according to claim 1, characterized in that: The top of the outer insulation cylinder (1) is fixedly installed with a vent pipe (33), and an electromagnetic vent valve (34) is fixedly installed on the vent pipe (33). The bottom end of the vent pipe (33) is connected to the inside of the slurry leaching cylinder (2). A pressure sensor and a temperature sensor are fixedly installed inside the slurry leaching cylinder (2).

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