Multistage electric precipitation energy-saving device for purifying copper electrolyte

Abstract

The utility model discloses a kind of copper electrolyte purification multistage electric accumulation energy-saving devices, it is related to electrolyte purification technical field, including electric accumulation component, liquid transmission component;Electric accumulation component includes multiple electric accumulation tank, positive electrode, negative electrode, filter piece, pumping part, overflow pipe, drain pipe, collection piece;Liquid transmission component includes rotating part, liquid transmission piece, cleaning piece;Positive electrode and negative electrode realize electrolysis, overflow pipe realizes the intercommunication purpose of multiple electric accumulation tank, accelerates the reaction efficiency of electrolyte and copper row, controls current and voltage in electric accumulation process, improves energy utilization efficiency, the setting of filter piece effectively blocks the solid impurity and particle in electrolyte, prevents them from entering electrolysis area and interfering electrolysis process, rotating part drives liquid transmission piece to produce strong shear force and eddy current in rotation process, causes electrolyte to produce violent turbulent flow movement, speeds up the diffusion speed of ion in electrolyte, enhances the contact opportunity of ion and electrode surface, to improve the rate and efficiency of electrolysis reaction.

Description

Technical Field

[0001] This utility model relates to the field of electrolyte purification technology, specifically to a multi-stage electrowinning energy-saving device for purifying copper electrolyte. Background Technology

[0002] Electrolytic deposition is a process in which a target substance is deposited on the electrode surface by applying an electric current in an aqueous solution or suspension; it is also known as electrolytic extraction or insoluble anodic electrolysis. This process uses an insoluble anode, where metal ions are reduced and deposited at the cathode under direct current to extract metals such as zinc, copper, nickel, and cobalt, directly yielding high-purity products. Purification of the copper electrolyte is an essential step in copper electrolytic refining. During electrolysis with the same electrolyte, the slow flow rate of the electrolyte solution and low reaction efficiency with the electrode medium lead to incomplete purification and recovery of valuable metals, resulting in economic losses. Therefore, we propose a multi-stage electrodeposition energy-saving device for copper electrolyte purification. Utility Model Content

[0003] The main purpose of this invention is to provide a multi-stage electrowinning energy-saving device for purifying copper electrolyte, which solves the problem that the slow flow rate of the electrolyte solution and the low reaction efficiency with the electrode medium in the existing copper electrolysis process lead to incomplete purification and recovery of valuable metals.

[0004] To achieve the above objectives, this utility model provides a multi-stage electrowinning energy-saving device for purifying copper electrolyte, comprising: An electrowinning assembly includes multiple electrowinning cells and positive and negative electrodes spaced apart within the cells. Filter elements are spaced apart within each cell. A pumping element communicating with the interior of the cell is located on the outer wall of the cell. Adjacent cells decrease in height and are interconnected by overflow pipes. A drain pipe communicating with an electrolysis zone is located at the bottom of each cell. An electrolysis zone is formed between the filter elements, and a storage zone is formed between the filter elements and the electrowinning cells. The positive and negative electrodes are respectively located on opposite sides of the electrolysis zone. A collecting element is located on the outer wall of each filter element away from the electrolysis zone. The liquid transfer assembly includes a rotating component disposed in an electrodeposition cell and a liquid transfer component disposed on the rotating component; the rotating component passes through the electrodeposition cell and a filter in sequence; the rotating component is provided with a cleaning component that contacts and connects to the outer wall of the filter; the rotating component rotates under the action of external force to drive the liquid transfer component to rotate and transport the electrolyte in the electrodeposition cell toward the electrolysis zone, and to drive the cleaning component to rotate and push the impurities attached to the filter into the collection component.

[0005] As a further improvement of this utility model, the bottom end of the electrowinning tank is provided with a connecting plate; the connecting plate is provided with a connecting shaft; the bottom of the connecting shaft is provided with a support base, and the connecting shaft is provided with a support roller that contacts and connects with the support base; both ends of the support base are provided with adjusting plates that cooperate with the connecting plate; the connecting shaft is rotatably connected to the adjusting plate; and a locking element is provided between the connecting plate and the adjusting plate.

[0006] As a further improvement of this utility model, the support base is provided with an arc-shaped support groove in the middle; the support roller is located in the support groove and is in contact with the end face of the support groove.

[0007] As a further improvement of this utility model, the filter element includes a filter screen plate movably disposed in the electrodeposition cell; the filter screen plate is located in the middle of the electrodeposition cell.

[0008] As a further improvement of this utility model, the pumping component includes an inlet pump disposed outside the electrowinning tank, an input pipe connected to the inlet pump, and an output pipe; the output pipe is connected to the storage area.

[0009] As a further improvement of this utility model, the collecting component includes collecting boxes disposed at both ends of the filter screen plate; the collecting boxes are provided with filter holes and the collecting boxes are provided with collecting chambers; a collecting slit is provided between the collecting boxes and the filter screen plate; the collecting slit communicates with the collecting chamber.

[0010] As a further improvement of this utility model, the rotating component includes a drive shaft rotatably disposed in the electrowinning cell and a drive motor connected to the rotating shaft; the drive shaft passes through the side wall of the electrowinning cell and the filter screen in sequence; the liquid transfer component includes a stirring blade disposed on the drive shaft; the drive motor rotates under the action of external force to drive the stirring blade to rotate and transport the electrolyte toward the filter screen.

[0011] As a further improvement of this utility model, the cleaning component includes a connecting sleeve connected to the drive shaft and a cleaning plate disposed on the connecting sleeve; the cleaning plate has an arc-shaped structure and is in contact with the filter screen.

[0012] The beneficial effects of this utility model are reflected in: Electrolysis can be achieved by setting positive and negative electrodes. Multiple electrowinning cells can be connected by the overflow pipe, which accelerates the reaction efficiency between the electrolyte and the copper busbar. The current and voltage during the electrowinning process can be controlled more effectively, thereby improving energy utilization efficiency. The filter effectively blocks solid impurities and particles in the electrolyte, preventing them from entering the electrolysis area and interfering with the electrolysis process. The rotating component drives the liquid transfer component to generate strong shear force and eddies during rotation, causing the electrolyte to generate violent turbulent motion, accelerating the diffusion rate of ions in the electrolyte, and increasing the contact opportunity between ions and the electrode surface, thereby improving the rate and efficiency of the electrolysis reaction. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of a multi-stage electrowinning energy-saving device for purifying copper electrolyte according to this utility model; Figure 2 This is a cross-sectional structural schematic diagram of a multi-stage electrowinning energy-saving device for purifying copper electrolyte according to this utility model; Figure 3 This is a schematic diagram of the filter element and rotating element of a multi-stage electrowinning energy-saving device for purifying copper electrolyte according to this utility model. Explanation of reference numerals in the attached figures: 1. Electrolysis cell; 2. Positive electrode; 3. Negative electrode; 4. Filter element; 401. Filter screen; 5. Pumping element; 501. Inlet pump; 502. Inlet pipe; 503. Outlet pipe; 6. Overflow pipe; 7. Tail tank; 8. Electrolysis zone; 9. Storage zone; 10. Collecting element; 1001. Collection box; 1002. Filter hole; 1003. Collection slot; 11. Rotating element; 1101. Drive shaft; 110 2. Drive motor; 12. Liquid transfer component; 1201. Stirring blade; 13. Cleaning component; 1301. Connecting sleeve; 1302. Cleaning plate; 14. Support plate; 15. Positioning hole; 16. Connecting disc; 17. Connecting shaft; 18. Support base; 19. Support roller; 20. Adjusting disc; 21. Locking component; 22. Adjusting hole; 23. Connecting plate; 24. Support groove; 25. Positioning groove; 26. Controller. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the described embodiments are merely some, not all, of the embodiments of this utility model. Unless otherwise specified, the embodiments and features described in this application can be combined with each other. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0015] In one embodiment, see Figure 1 This utility model discloses a multi-stage electrowinning energy-saving device for purifying copper electrolyte, comprising an electrowinning assembly and a liquid transfer assembly.

[0016] The electrodeposition assembly includes multiple electrodeposition cells 1, positive electrodes 2 and negative electrodes 3 spaced apart within each electrodeposition cell 1, filter elements 4 spaced apart within each electrodeposition cell 1, a pumping element 5 connected to the interior of each electrodeposition cell 1 on its outer wall, and overflow pipes 6 connecting adjacent electrodeposition cells 1 with decreasing height. A drain pipe connected to an electrolysis zone 8 is located at the bottom of each electrodeposition cell 1. An electrolysis zone 8 is formed between the filter elements 4, and a storage zone 9 is formed between the filter elements 4 and the electrodeposition cell 1. The positive electrodes 2 and negative electrodes 3 are respectively located on opposite sides of the electrolysis zone 8. A collection element 10 is provided on the outer wall of the filter element 4 away from the electrolysis zone 8; the liquid transfer assembly includes a rotating element 11 disposed in the electrodeposition tank 1 and a liquid transfer element 12 disposed on the rotating element 11. The rotating element 11 passes through the electrodeposition tank 1 and the filter element 4 in sequence. A cleaning element 13 is provided on the rotating element 11 and is in contact with the outer wall of the filter element 4. The rotating element 11 rotates under the action of external force to drive the liquid transfer element 12 to rotate and transport the electrolyte in the electrodeposition tank 1 toward the electrolysis zone 8, and to drive the cleaning element 13 to rotate and push the impurities attached to the filter element 4 into the collection element 10.

[0017] Preferably, the electrodeposition cell 1 is a hollow rectangular body with one end open. Support plates 14 are provided on both sides of the open end of the electrodeposition cell 1. Positioning holes 15 are provided on the support plates 14. The positive electrode 2 and the negative electrode 3 are respectively installed in the two sets of positioning holes 15.

[0018] Preferably, the positive electrode 2 is an insoluble anode plate and the negative electrode 3 is a cathode plate. During the electrolysis process, a voltage is applied between the positive electrode 2 and the negative electrode 3 to promote the directional migration of ions in the electrolyte, thereby causing a redox reaction on the electrode to generate the target product.

[0019] Further, see Figure 1 , 2 The bottom end of the electrodeposition cell 1 is provided with a connecting plate 16, the connecting plate 16 is provided with a connecting shaft 17, the bottom of the connecting shaft 17 is provided with a support base 18, the connecting shaft 17 is provided with a support roller 19 that contacts and connects with the support base 18, the two ends of the support base 18 are provided with adjustment plates 20 that cooperate with the connecting plate 16, the connecting shaft 17 is rotatably connected to the adjustment plate 20, and a locking element 21 is provided between the connecting plate 16 and the adjustment plate 20.

[0020] Preferably, both the connecting plate 16 and the adjusting plate 20 are circular disc-shaped structures, and multiple sets of adjusting holes 22 are provided at intervals along the circumference of the connecting plate 16 and the adjusting plate 20.

[0021] Preferably, the locking member 21 includes a locking stud that passes through the adjusting hole 22 and a locking sleeve that is threadedly connected to the locking stud.

[0022] Preferably, the top of the connecting plate 16 is provided with a connecting plate 23, which is welded to the bottom of the electrosink 1. The middle part of the connecting plate 16 is provided with a mounting hole, and the two ends of the connecting shaft 17 are welded into the mounting hole and extend beyond the mounting hole. The middle part of the adjusting plate 20 is provided with a through hole, and the two ends of the connecting shaft 17 are respectively located in the through hole.

[0023] Further, see Figure 2 The support base 18 has an arc-shaped support groove 24 in the middle, and the support roller 19 is located in the support groove 24 and is in contact with the end face of the support groove 24.

[0024] Preferably, the support groove 24 is arranged parallel to the connecting shaft 17, the support groove 24 is located directly below the connecting shaft 17, the support roller 19 is a cylinder, the support roller 19 is located in the middle of the connecting shaft 17, and the outer diameter of the support roller 19 is larger than the outer diameter of the connecting shaft 17.

[0025] In the above configuration, rotating the electrowinning cell 1 drives the connecting shaft 17 and the connecting plate 16 to rotate, so that the adjusting hole 22 on the connecting plate 16 is connected to the adjusting hole 22 at different positions on the adjusting plate 20. A locking stud is used to pass through the adjusting hole 22 and connect with the locking sleeve, so that the connecting plate 16 and the adjusting plate 20 can be connected and fixed, thereby fixing the position of the connecting shaft 17, and thus fixing the position of the electrowinning cell 1 to be perpendicular or inclined to the horizontal plane to meet different electrolysis requirements. The support roller 19 is located in the support groove 24 to provide support for the electrowinning cell 1.

[0026] Further, see Figure 1 , 2 3. The filter element 4 includes a filter screen plate 401 movably disposed in the electrodeposition tank 1, and the filter screen plate 401 is located in the middle of the electrodeposition tank 1.

[0027] Preferably, the support plate 14 is provided with a positioning groove 25, and the filter screen plate 401 is inserted into the positioning groove 25.

[0028] Further, see Figure 1 The pumping unit 5 includes an inlet pump 501 disposed outside the electrowinning tank 1, an input pipe 502 connected to the inlet pump 501, and an output pipe 503 connected to the liquid storage area 9.

[0029] Preferably, the inlet pump 501 adopts the existing structure. A fixed seat is provided between the inlet pump 501 and the electrowinning tank 1. The inlet pump 501 is mounted on the fixed seat by bolts. The input pipe 502 is connected to the inlet end of the inlet pump 501, and the output pipe 503 is connected to the output end of the inlet pump 501. The electrolyte is pumped from the input pipe 502 into the storage area 9 by the inlet pump 501.

[0030] Further, see Figure 1 , 3The collection component 10 includes collection boxes 1001 disposed at both ends of the filter screen plate 401. The collection box 1001 is provided with filter holes 1002. The collection box 1001 is provided with a collection cavity inside. A collection slit 1003 is provided between the collection box 1001 and the filter screen plate 401. The collection slit 1003 communicates with the collection cavity.

[0031] Preferably, the collection box 1001 is a hollow, arc-shaped box. One end of the collection box 1001 is open and has a mounting plate. The mounting plate is detachably connected to the filter screen plate 401 by bolts. The collection slot 1003 is located at the open end of the collection box 1001 and faces the center of the filter screen plate 401.

[0032] Further, see Figure 2 , 3 The rotating component 11 includes a drive shaft 1101 rotatably disposed in the electrowinning tank 1 and a drive motor 1102 connected to the rotating shaft. The drive shaft 1101 passes through the side wall of the electrowinning tank 1 and the filter screen plate 401 in sequence. The liquid transfer component 12 includes a stirring blade 1201 disposed on the drive shaft 1101. The drive motor 1102 rotates under the action of external force to drive the stirring blade 1201 to rotate and transport the electrolyte toward the filter screen plate 401.

[0033] Preferably, the side wall of the electrowinning tank 1 is provided with a fixing hole, and a sealed bearing is provided in the fixing hole, and the drive shaft 1101 is fixedly connected to the inner ring of the sealed bearing.

[0034] Preferably, the filter screen plate 401 is provided with a through hole for the drive shaft 1101 to pass through.

[0035] In the above configuration, the drive motor 1102 adopts a stepper motor in the existing structure. The drive motor 1102 can be bolted to the support base 18. Since multiple sets of electrolytic cells 1 are set, multiple sets of drive motors 1102 are also set. A controller 26 (using a PLC controller 26) can be set to connect to multiple sets of motors through wires. The PLC controller 26 regulates the operating status of the drive motors 1102. Through the built-in programming logic, the PLC controller 26 can realize the automated control of the motor's start, stop, acceleration, and deceleration, thereby ensuring the stable operation of the entire system. By controlling the rotation of multiple sets of drive motors 1102 through the controller 26, the transmission shaft 1101 is driven to rotate. The stirring blades 1201 rotate accordingly, transporting the electrolyte in the storage area 9 toward the electrolysis area 8. During the rotation of the stirring blades 1201, strong shearing force and eddies are generated, causing the electrolyte to generate violent turbulent motion, which not only accelerates the diffusion of ions in the electrolyte. The increased dispersion speed also enhances the contact opportunities between ions and the electrode surface, thereby improving the rate and efficiency of the electrolysis reaction. The filter plate 401 effectively blocks solid impurities and particles in the electrolyte, preventing them from entering the electrolysis zone 8 and interfering with the electrolysis process. At the same time, as the stirring blade 1201 rotates and transports the electrolyte toward the filter plate 401, the filter plate 401 blocks part of the electrolyte, causing this part of the electrolyte to move along the end face of the filter plate 401, thereby driving the intercepted solid impurities and particles toward the collection box 1001 and into the collection box through the collection slit 1003. The electrolyte flows out from the filter hole 1002 on the collection box 1001, while the solid impurities and particles remain in the collection box 1001 and can be removed for cleaning. As electrolysis proceeds, the purified liquid is continuously discharged through the purified liquid drain pipe, and a tail liquid tank 7 is set below the drain pipe for collection. The design of the tail liquid tank 7 facilitates the subsequent treatment and recycling of the purified liquid.

[0036] Further, see Figure 2 , 3 The cleaning component 13 includes a connecting sleeve 1301 connected to the drive shaft 1101 and a cleaning plate 1302 disposed on the connecting sleeve 1301. The cleaning plate 1302 has an arc-shaped structure and is in contact with the filter screen plate 401.

[0037] Preferably, the connecting sleeve 1301 is a hollow cylinder with openings at both ends, and the connecting sleeve 1301 is connected to the drive shaft 1101 by a key connection.

[0038] Preferably, the cleaning plates 1302 are spaced apart and arranged circumferentially on the outer wall of the connecting sleeve 1301. During the rotation of the drive shaft 1101, the connecting sleeve 1301 and the cleaning plates 1302 rotate accordingly. The cleaning plates 1302 scrape off the solid impurities and particles attached to the filter screen 401 from the filter screen 401. Under the rotation of the cleaning plates 1302, the solid impurities and particles are pushed along the cleaning plates 1302 and pushed into the collection slot 1003, and finally collected by the collection box 1001.

[0039] In this embodiment, the input pipe 502 is connected to the electrolyte storage tank via a pipe, and the output pipe 503 is connected to the inlet pump 501 and the electrowinning tank 1. After the inlet pump 501 is started, the electrolyte inside the electrolyte storage tank is drawn out through the input pipe 502, and the drawn-out electrolyte enters the interior of the electrowinning tank 1 through the input pipe 502. The electrowinning tank 1 is used to place copper busbars, achieving the purpose of protecting the copper busbars and the positive electrode 2 and negative electrode 3. By setting the positive electrode 2 and negative electrode 3, the purpose of electrolysis can be achieved. Under the action of the overflow pipe 6, the multiple electrowinning tanks 1 can be connected, that is, the upper electrowinning tanks can be connected. The electrolyte inside cell 1 enters the next stage electrowinning cell 1. This arrangement accelerates the reaction efficiency between the electrolyte and the copper busbar. Through multi-stage electrowinning, the current and voltage during the electrowinning process can be controlled more effectively, thereby improving energy utilization efficiency and reducing energy consumption. In addition, the application of multi-stage electrowinning helps to reduce energy loss during the electrowinning process, improve current efficiency and product quality, thereby achieving energy saving and consumption reduction. After the electrolysis reaction is completed, the electrolyte inside cell 1 is introduced into tail liquid tank 7 through the drain pipe, which can achieve the purpose of repeated use and effectively improve resource utilization.

[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-stage electrodeposition energy-saving device for purifying copper electrolyte, characterized in that, include: The electrodeposition assembly includes multiple electrodeposition cells (1), positive electrodes (2) and negative electrodes (3) spaced apart within the electrodeposition cells (1); filter elements (4) are spaced apart within the electrodeposition cells (1), and a pumping element (5) communicating with the interior of the electrodeposition cells (1) is provided on the outer wall of the electrodeposition cells (1); the height of adjacent electrodeposition cells (1) decreases and they are connected by overflow pipes (6); a drain pipe communicating with an electrolysis zone (8) is provided at the bottom of the electrodeposition cells (1); an electrolysis zone (8) is formed between the filter elements (4), and a storage zone (9) is formed between the filter elements (4) and the electrodeposition cells (1); the positive electrodes (2) and the negative electrodes (3) are respectively located on both sides of the electrolysis zone (8); a collecting element (10) is provided on the outer wall of the filter elements (4) away from the electrolysis zone (8). The liquid transfer assembly includes a rotating component (11) disposed in the electrowinning tank (1) and a liquid transfer component (12) disposed on the rotating component (11); the rotating component (11) passes through the electrowinning tank (1) and the filter (4) in sequence; the rotating component (11) is provided with a cleaning component (13) that contacts and connects with the outer wall of the filter (4); the rotating component (11) rotates under the action of external force to drive the liquid transfer component (12) to rotate and transport the electrolyte in the electrowinning tank (1) toward the electrolysis zone (8), and drive the cleaning component (13) to rotate and push the impurities attached to the filter (4) into the collection component (10).

2. The multi-stage electrowinning energy-saving device for purifying copper electrolyte according to claim 1, characterized in that: The bottom end of the electrowinning tank (1) is provided with a connecting plate (16); the connecting plate (16) is provided with a connecting shaft (17); the bottom of the connecting shaft (17) is provided with a support base (18), and the connecting shaft (17) is provided with a support roller (19) that contacts and connects with the support base (18); the two ends of the support base (18) are provided with adjusting plates (20) that cooperate with the connecting plate (16); the connecting shaft (17) and the adjusting plate (20) are rotatably connected; a locking element (21) is provided between the connecting plate (16) and the adjusting plate (20).

3. The multi-stage electrowinning energy-saving device for purifying copper electrolyte according to claim 2, characterized in that: The support base (18) has an arc-shaped support groove (24) in the middle; the support roller (19) is located in the support groove (24) and is in contact with the end face of the support groove (24).

4. The multi-stage electrowinning energy-saving device for purifying copper electrolyte according to claim 3, characterized in that: The filter element (4) includes a filter screen (401) movably disposed within the electrodeposition tank (1); the filter screen (401) is located in the middle of the electrodeposition tank (1).

5. The multi-stage electrodeposition energy-saving device for purifying copper electrolyte according to claim 4, characterized in that: The pumping unit (5) includes an inlet pump (501) disposed outside the electrowinning tank (1), an input pipe (502) connected to the inlet pump (501), and an output pipe (503); the output pipe (503) is connected to the liquid storage area (9).

6. The multi-stage electrowinning energy-saving device for purifying copper electrolyte according to claim 5, characterized in that: The collecting component (10) includes collecting boxes (1001) disposed at both ends of the filter screen plate (401); the collecting box (1001) is provided with filter holes (1002), and the collecting box (1001) is provided with a collecting cavity; a collecting slit (1003) is provided between the collecting box (1001) and the filter screen plate (401); the collecting slit (1003) is connected to the collecting cavity.

7. The multi-stage electrodeposition energy-saving device for purifying copper electrolyte according to claim 6, characterized in that: The rotating component (11) includes a drive shaft (1101) rotatably disposed in the electrowinning tank (1) and a drive motor (1102) connected to the drive shaft; the drive shaft (1101) passes through the side wall of the electrowinning tank (1) and the filter screen (401) in sequence; the liquid transfer component (12) includes a stirring blade (1201) disposed on the drive shaft (1101); the drive motor (1102) rotates under the action of external force to drive the stirring blade (1201) to rotate and transport the electrolyte toward the filter screen (401).

8. The multi-stage electrowinning energy-saving device for purifying copper electrolyte according to claim 7, characterized in that: The cleaning component (13) includes a connecting sleeve (1301) connected to the drive shaft (1101) and a cleaning plate (1302) disposed on the connecting sleeve (1301); the cleaning plate (1302) has an arc-shaped structure and is in contact with the filter screen plate (401).

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