Current rotational flow auxiliary metal replacement extraction device

Abstract

The invention relates to the technical field of extraction devices, and discloses a current rotational flow auxiliary metal replacement extraction device which comprises a tank body, a water inlet pipe is fixedly connected to the inner wall of the tank body, a water outlet pipe is fixedly connected to the inner wall of the tank body, and a swirler is connected to the left side of the water outlet pipe through a hose; a first fixing ring is fixedly connected to the circumferential surface of the tank body, a first rotating rod is fixedly connected to the front portion of the first fixing ring, a supporting frame is rotatably connected to the circumferential surface of the first rotating rod, and an electrode supporting plate is fixedly connected to the inner wall of the tank body. And the center of the rod-shaped zinc electrode is provided with the conductive titanium round steel, so that the zinc reaction of the zinc electrode is complete, the conductive titanium round steel is left without zinc residue, and the cyclone can timely separate the product to prevent the product from redissolving, so that the overall replacement rate and efficiency are improved.

Description

Technical Field

[0001] This invention relates to the field of extraction device technology, specifically to an electrocyclone-assisted metal displacement extraction device. Background Technology

[0002] Traditional metal displacement technology, using zinc powder, iron powder, and other materials as displacement agents, is widely used in fields such as hydrometallurgy, heavy metal wastewater treatment, and electronic waste recycling. However, due to limitations in technical principles and equipment design, it is difficult to meet the demands of efficient, clean, and large-scale industrial applications.

[0003] Patent CN113913625B discloses a current-assisted displacement cadmium extraction device, which includes a tubular zinc electrode, a tubular lead electrode, a zinc electrode rotating shaft, a plastic encapsulation body, and front and rear encapsulation covers. The tubular zinc electrode has holes in its wall surface. The tubular zinc electrode is disposed inside the tubular lead electrode, and the two electrodes are coaxially positioned. A rotating shaft is located inside the tubular zinc electrode to drive its rotation. The plastic encapsulation body and the front and rear encapsulation covers seal the tubular zinc electrode and the tubular lead electrode. The front encapsulation cover has a conductive connector for the tubular zinc electrode and a water inlet. The rear sealing cap is equipped with a tubular lead electrode conductive connector and a water outlet. This device has the advantages of small footprint, easy assembly and installation, large working area, high cadmium replacement rate, easy collection of sponge cadmium, and high sponge cadmium grade, and has important industrial application value. However, in the process of metal extraction, it is difficult to adjust the angle of water flow when entering according to the actual situation inside the tank, and thus flexibly adjust the strength of the vortex. At the same time, the zinc electrode reaction is incomplete, which easily causes zinc electrode residue and increases the need for reverse processing. Therefore, an electric current vortex-assisted metal replacement extraction device is proposed to solve the above-mentioned problems. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an electrocyclone-assisted metal displacement extraction device in view of the shortcomings of the prior art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: an electrocyclone-assisted metal displacement extraction device, comprising a tank, an inlet pipe fixedly connected to the inner wall of the tank, an outlet pipe fixedly connected to the inner wall of the tank, a hydrocyclone connected to the left side of the outlet pipe via a flexible hose, a fixing ring fixedly connected to the circumferential surface of the tank, a rotating rod fixedly connected to the front of the fixing ring, a support frame rotatably connected to the circumferential surface of the rotating rod, an electrode support plate fixedly connected to the inner wall of the tank, a tubular titanium electrode fixedly connected to the center of the electrode support plate, several rod-shaped zinc electrodes surrounding the tubular titanium electrode, and a conductive titanium round steel at the center of the rod-shaped zinc electrodes, the inner wall of the tank... A spiral guide rod is fixedly connected, and a rotating rod is rotatably connected to the inner wall of the tank. A guide plate is fixedly connected to the circumference of the rotating rod. A flow control mechanism for controlling the liquid flow is provided on the inner wall of the water inlet pipe. A pneumatic valve is provided at the bottom of the inner wall of the tank. When metal needs to be replaced, the metal liquid containing the metal is transported from the water inlet pipe into the interior of the tank. Because the rod-shaped zinc electrode and the tubular titanium electrode are coaxially distributed in the device, and the wall of the tubular titanium electrode has uniform circular holes, the liquid can form a stable swirling flow after being energized. Under the action of centrifugal force, the electrode surface is washed, which enhances the mass transfer effect, facilitates the rapid replacement of the metal liquid, and prevents product adhesion. Subsequently, the liquid will flow upward in a spiral.

[0006] Preferably, the circumferential surface of the rotating rod is rotatably connected to the inner wall of the electrode support plate, and the circumferential surface of the rotating rod is rotatably connected to the inner wall of the tank. When the liquid enters the interior of the tank, it can prevent water from directly impacting the electrode or generating turbulent flow, thereby quickly establishing a centrifugal force environment that meets the reaction requirements, breaking the metal ion diffusion boundary layer, laying the foundation for efficient displacement, and at the same time, it can adjust the tangential angle of the water flow, thereby flexibly adjusting the strength of the vortex, and avoiding incomplete reaction or product adhesion.

[0007] Preferably, the flow control mechanism includes a connecting plate fixedly connected to the surface of the tank. The inner wall of the connecting plate is rotatably connected to the circumferential surface of the rotating rod. A grooved plate is fixedly connected to the bottom of the connecting plate, and the inner wall of the grooved plate is rotatably connected to the circumferential surface of the rotating rod. A chamfered plate is fixedly connected to the circumferential surface of the rotating rod. An elastic rod is slidably connected to the inner wall of the chamfered plate via a spring. An inclined plate is fixedly connected to the top of the elastic rod, and the surface of the inclined plate is in contact with the inner wall of the grooved plate. A threaded rod is rotatably connected to the inner wall of the water inlet pipe. When adjusting the tangential angle of the water flow, the threaded rod can be locked inside the grooved plate to prevent the rotating rod from rotating. This allows the guide plate to be locked at the optimal rotation angle, avoiding angle deviation that could lead to flow loss of control, ensuring reaction stability, and improving the operability and operational reliability of the device.

[0008] Preferably, a motor is provided at the top of the threaded rod, and the threaded rod is driven to rotate by the motor. A baffle is threadedly connected to the circumferential surface of the threaded rod. The surface of the baffle is slidably connected to the inner wall of the water inlet pipe. A T-shaped plate is fixedly connected to the circumferential surface of the water inlet pipe. The inner wall of the T-shaped plate is rotatably connected to the circumferential surface of the threaded rod. When it is necessary to control the liquid flow rate, the motor will start and drive the threaded rod to rotate. The rotation of the threaded rod will drive the baffle to move up and down through the threaded groove on its surface. The up and down movement of the baffle will change the size of the water inlet pipe, thereby directly adjusting the water flow rate and thus adjusting the flow rate inside the tank. This allows the metal ions to react fully with the replacement electrode, avoiding insufficient reaction due to excessively fast flow rate or product back dissolution and accumulation due to excessively slow flow rate.

[0009] Preferably, the rod-shaped zinc electrode has a conductive titanium round steel at its center. This allows the zinc electrode to react completely with zinc, leaving the conductive titanium round steel without any zinc residue. The hydrocyclone can also separate the product in a timely manner to prevent product re-dissolution, thereby improving the overall replacement rate and efficiency.

[0010] The present invention, by adopting the above technical solution, can bring the following beneficial effects: 1. This current-assisted cyclone metal displacement extraction device, when metal extraction is required, transports the metal-containing liquid through the inlet pipe into the tank. Because the rod-shaped zinc electrode and the tubular titanium electrode are coaxially distributed inside the device, and the wall of the tubular titanium electrode has uniform circular holes, the liquid can form a stable cyclone after being energized. Under the action of centrifugal force, the electrode surface is washed, which enhances the mass transfer effect and facilitates the rapid displacement of the metal liquid. Subsequently, the liquid will flow upward in a spiral. When the liquid enters the tank, it can avoid the water directly hitting the electrode or generating a turbulent flow state, thereby quickly establishing a centrifugal force environment that meets the reaction requirements, breaking the metal ion diffusion boundary layer, laying the foundation for efficient displacement. At the same time, the tangential angle of the water flow can be adjusted to flexibly adjust the strength of the cyclone and avoid incomplete reaction or product adhesion.

[0011] 2. This current cyclone-assisted metal displacement extraction device can be locked inside the grooved plate when adjusting the tangential angle of the water flow, preventing the rotating rod from rotating. This allows the guide plate to be locked at the optimal rotation angle, avoiding flow loss due to angle deviation, ensuring reaction stability, and improving the operability and operational reliability of the device.

[0012] 3. In this current cyclone-assisted metal displacement extraction device, when it is necessary to control the liquid flow rate, the motor will start and drive the threaded rod to rotate. The rotation of the threaded rod will drive the baffle to move up and down through the threaded groove on the surface. The up and down movement of the baffle will change the size of the water inlet, thereby directly adjusting the water flow rate and thus adjusting the flow rate in the tank. This allows the metal ions to react fully with the displacement electrode, avoiding insufficient reaction due to excessive flow rate or product back dissolution and accumulation due to excessively slow flow rate.

[0013] 4. This current-assisted cyclone metal displacement extraction device has a conductive titanium round steel at the center of the rod-shaped zinc electrode, which can ensure that the zinc electrode reacts completely, leaving the conductive titanium round steel without zinc residue. The cyclone separator can separate the product in time to prevent product re-dissolution, thereby improving the overall displacement rate and efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a half-sectional view of the tank structure of the present invention; Figure 3 This is a schematic diagram of the rotating rod of the present invention; Figure 4 For the present invention Figure 3 Enlarged view of the structure at point A in the middle.

[0015] In the diagram: 1. Tank; 2. Inlet pipe; 3. Outlet pipe; 4. Support frame; 5. Hydrocyclone; 6. Fixing ring 1; 7. Flow control mechanism; 11. Electrode support plate; 12. Tubular titanium electrode; 13. Rod zinc electrode; 14. Spiral guide rod; 15. Rotating rod; 16. Guide plate; 71. Connecting plate; 72. Grooved disc; 73. Chamfered plate; 74. Elastic rod; 75. Inclined plate; 76. Threaded rod; 77. Baffle; 78. T-shaped plate. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] Please see Figures 1-4One embodiment of the present invention is as follows: an electric current cyclone-assisted metal displacement extraction device, comprising a tank 1, an inlet pipe 2 fixedly connected to the inner wall of the tank 1, an outlet pipe 3 fixedly connected to the inner wall of the tank 1, a hydrocyclone 5 connected to the left side of the outlet pipe 3 via a flexible hose, a fixing ring 6 fixedly connected to the circumferential surface of the tank 1, a support frame 4 fixedly connected to the front of the fixing ring 6, an electrode support plate 11 fixedly connected to the inner wall of the tank 1, a tubular titanium electrode 12 fixedly connected to the center of the electrode support plate 11, several rod-shaped zinc electrodes 13 around the tubular titanium electrode 12, a conductive titanium round steel at the center of the rod-shaped zinc electrode 13, a spiral guide rod 14 fixedly connected to the inner wall of the tank 1, a rotating rod 15 rotatably connected to the inner wall of the tank 1, a guide plate 16 fixedly connected to the circumferential surface of the rotating rod 15, and a flow control mechanism 7 for controlling the liquid flow rate provided on the inner wall of the inlet pipe 2; When metal extraction is required, the molten metal containing the metal is transported from the inlet pipe 2 into the tank 1. Because the rod-shaped zinc electrode 13 and the tubular titanium electrode 12 are coaxially distributed in the device, and the tubular titanium electrode 12 has uniform round holes on its wall, the liquid can form a stable swirling flow after being energized. Under the action of centrifugal force, the electrode surface is washed, which enhances the mass transfer effect and facilitates the rapid replacement of the molten metal. The liquid then flows upward in a spiral shape and is discharged from the outlet pipe 3. It then enters the hydrocyclone 5 through the hose for further separation. At the same time, under the action of centrifugal force, the heavier replacement residue will fall to the bottom of the tank 1 by gravity, while the lighter replacement residue will continue to flow with the liquid. The circumferential surface of the rotating rod 15 is rotatably connected to the inner wall of the electrode support plate 11, and the circumferential surface of the rotating rod 15 is rotatably connected to the inner wall of the tank 1. When the liquid enters the tank 1, the operator can rotate the rotating rod 15 by turning the handle. The rotation of the rotating rod 15 can drive the guide plate 16 to rotate, so that the liquid is blocked and deflected when it comes into contact with the guide plate 16. This allows the guide plate 16 to guide the water flow tangentially into the tank 1, directly forming a regular swirling flow. This avoids the water directly hitting the electrodes or causing turbulent flow, and thus quickly establishes a centrifugal force environment that meets the reaction requirements. This breaks the metal ion diffusion boundary layer and lays the foundation for efficient displacement. At the same time, the tangential angle of the water flow can be adjusted, thereby flexibly adjusting the strength of the swirling flow and avoiding incomplete reaction or product adhesion.

[0018] Working principle: When metal extraction is required, the molten metal containing the metal is transported from the inlet pipe 2 into the tank 1. Because the rod-shaped zinc electrode 13 and the tubular titanium electrode 12 are coaxially distributed in the device, and the wall of the tubular titanium electrode 12 has uniform circular holes, the liquid can form a stable vortex after being energized. Under the action of centrifugal force, the electrode surface is washed, which enhances the mass transfer and facilitates the rapid replacement of the molten metal. Subsequently, the liquid will flow upward in a spiral shape and then be discharged from the outlet pipe 3. It will then enter the hydrocyclone 5 through the hose for further separation. At the same time, under the action of centrifugal force, the heavier replacement residue will fall to the bottom of the tank 1 by gravity, while the lighter replacement residue will continue to flow with the liquid. When the liquid enters the tank 1, the tangential angle of the water flow can be adjusted, thereby flexibly adjusting the strength of the vortex and avoiding incomplete reaction or product adhesion.

[0019] Please see Figures 1-4 Based on the above embodiments, in another embodiment of the present invention, the flow control mechanism 7 includes a connecting plate 71, which is fixedly connected to the surface of the tank 1. The inner wall of the connecting plate 71 is rotatably connected to the circumferential surface of the rotating rod 15. A grooved plate 72 is fixedly connected to the bottom of the connecting plate 71. The inner wall of the grooved plate 72 is rotatably connected to the circumferential surface of the rotating rod 15. A chamfered plate 73 is fixedly connected to the circumferential surface of the rotating rod 15. An elastic rod 74 is slidably connected to the inner wall of the chamfered plate 73 by a spring. An inclined plate 75 is fixedly connected to the top of the elastic rod 74. The surface of the inclined plate 75 is in contact with the inner wall of the grooved plate 72. A threaded rod 76 is rotatably connected to the inner wall of the water inlet pipe 2. When adjusting the tangential angle of the water flow, the rotation of the rotating rod 15 will cause the chamfered plate 73 to rotate, the rotation of the chamfered plate 73 will cause the elastic rod 74 to rotate, and the rotation of the elastic rod 74 will cause the inclined plate 75 to rotate. During the rotation of the inclined plate 75, it will contact the inclined surface of the inner wall of the grooved plate 72, and the inclined plate 75 will be forced to move downward through the squeezing force. The downward movement of the inclined plate 75 will cause the elastic rod 74 to move downward. When the required angle is adjusted, the inclined plate 75 will be aligned with the groove of the grooved plate 72. At this time, the elastic rod 74 will move upward through the spring reset, and simultaneously drive the inclined plate 75 to move upward, so that it can be stuck inside the grooved plate 72, preventing the rotating rod 15 from rotating. This will lock the guide plate 16 at the optimal rotation angle, avoid angle deviation leading to flow loss of control, ensure reaction stability, and improve the operability and operational reliability of the device. A motor is installed at the top of the threaded rod 76, and the threaded rod 76 is driven to rotate by the motor. A baffle 77 is threadedly connected to the circumferential surface of the threaded rod 76. The surface of the baffle 77 is slidably connected to the inner wall of the water inlet pipe 2. A T-shaped plate 78 is fixedly connected to the circumferential surface of the water inlet pipe 2. The inner wall of the T-shaped plate 78 is rotatably connected to the circumferential surface of the threaded rod 76. When it is necessary to control the liquid flow rate, the motor will start and drive the threaded rod 76 to rotate. The rotation of the threaded rod 76 will drive the baffle 77 to move up and down through the threaded groove on the surface. The up and down movement of the baffle 77 will change the size of the inlet of the water inlet pipe 2, thereby directly adjusting the water flow rate and thus adjusting the flow rate in the tank. This allows the metal ions to react fully with the replacement electrode, avoiding insufficient reaction due to excessive flow rate or product back dissolution and accumulation due to excessively slow flow rate.

[0020] Regarding zinc electrode replacement, the rod-shaped zinc electrode 13 has a conductive titanium round steel in the center, which can ensure that the zinc reaction of the zinc electrode is complete, leaving the conductive titanium round steel without zinc residue. The hydrocyclone 5 can separate the product in time to prevent product re-dissolution, thereby improving the overall replacement rate and efficiency.

[0021] Working principle: When adjusting the tangential angle of the water flow, the rotation of the rotating rod 15 will drive the chamfered plate 73 to rotate, which in turn will drive the elastic rod 74 to rotate, which in turn will drive the inclined plate 75 to rotate. When the required angle is reached, the inclined plate 75 will align with the groove of the grooved plate 72, allowing it to be locked inside the grooved plate 72, preventing the rotating rod 15 from rotating. This will lock the guide plate 16 at the optimal rotation angle, preventing angle deviation from causing flow loss of control, ensuring reaction stability, and improving the operability and operational reliability of the device. When it is necessary to control the liquid flow rate, the motor will start and drive the threaded rod 76 to rotate, which can directly adjust the inlet water flow rate, thereby adjusting the flow rate inside the tank, allowing the metal ions to fully react with the displacement electrode.

[0022] This invention provides an electrocyclone-assisted metal displacement extraction device. Many methods and approaches exist for implementing this technical solution; the above description is merely a preferred embodiment of the invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this invention, and these improvements and modifications should also be considered within the scope of protection of this invention. All components not explicitly stated in this embodiment can be implemented using existing technologies.

Claims

1. A current-assisted metal displacement extraction device, comprising a tank (1), characterized in that: The inner wall of the tank (1) is fixedly connected to a water inlet pipe (2), the inner wall of the tank (1) is fixedly connected to a water outlet pipe (3), the circumferential surface of the tank (1) is fixedly connected to a fixing ring (6), the front part of the fixing ring (6) is fixedly connected to a rotating rod, the circumferential surface of the rotating rod is rotatably connected to a support frame (4), the inner wall of the tank (1) is fixedly connected to an electrode support plate (11), the center of the electrode support plate (11) is fixedly connected to a tubular titanium electrode (12), the periphery of the tubular titanium electrode (12) is surrounded by several rod-shaped zinc electrodes (13), the center of the rod-shaped zinc electrode (13) is a conductive titanium round steel, the inner wall of the tank (1) is fixedly connected to a spiral guide rod (14), the inner wall of the tank (1) is rotatably connected to a rotating rod (15), the circumferential surface of the rotating rod (15) is fixedly connected to a guide plate (16), and the inner wall of the water inlet pipe (2) is provided with a flow control mechanism (7) for controlling the liquid flow rate.

2. The electrocyclone-assisted metal displacement extraction device according to claim 1, characterized in that: The circumferential surface of the rotating rod (15) is rotatably connected to the inner wall of the electrode support plate (11), and the circumferential surface of the rotating rod (15) is rotatably connected to the inner wall of the tank (1). A pneumatic valve is provided at the bottom of the inner wall of the tank (1).

3. The electrocyclone-assisted metal displacement extraction device according to claim 2, characterized in that: The flow control mechanism (7) includes a connecting plate (71), which is fixedly connected to the surface of the tank (1).

4. The electrocyclone-assisted metal displacement extraction device according to claim 3, characterized in that: The inner wall of the connecting plate (71) is rotatably connected to the circumferential surface of the rotating rod (15), and a grooved disk (72) is fixedly connected to the bottom of the connecting plate (71). The inner wall of the grooved disk (72) is rotatably connected to the circumferential surface of the rotating rod (15).

5. The electrocyclone-assisted metal displacement extraction device according to claim 4, characterized in that: The circumferential surface of the rotating rod (15) is fixedly connected to a chamfer plate (73), and the inner wall of the chamfer plate (73) is slidably connected to an elastic rod (74) by a spring.

6. The electrocyclone-assisted metal displacement extraction device according to claim 5, characterized in that: An inclined plate (75) is fixedly connected to the top of the elastic rod (74). The surface of the inclined plate (75) is in contact with the inner wall of the grooved plate (72). A threaded rod (76) is rotatably connected to the inner wall of the water inlet pipe (2).

7. The electrocyclone-assisted metal displacement extraction device according to claim 6, characterized in that: A motor is provided at the top of the threaded rod (76), and the threaded rod (76) is driven to rotate by the motor. A baffle (77) is threadedly connected to the circumferential surface of the threaded rod (76).

8. The electrocyclone-assisted metal displacement extraction device according to claim 7, characterized in that: The surface of the baffle (77) is slidably connected to the inner wall of the water inlet pipe (2), and a T-shaped plate (78) is fixedly connected to the circumferential surface of the water inlet pipe (2). The inner wall of the T-shaped plate (78) is rotatably connected to the circumferential surface of the threaded rod (76).

9. The electrocyclone-assisted metal displacement extraction device according to claim 8, characterized in that: The rod-shaped zinc electrode (13) has a conductive titanium round steel in the center. The left side of the water outlet pipe (3) is connected to a hydrocyclone (5) through a flexible hose. The rod-shaped zinc electrode (13) has a conductive titanium round steel in the center, which can make the zinc electrode react completely, leaving the conductive titanium round steel without zinc residue. The hydrocyclone (5) can separate the product in time to prevent the product from re-dissolving.

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