A timing liquid supplement system for electro-deposition cobalt production

Abstract

This utility model discloses a timed liquid replenishment system for cobalt electrolytic deposition, configured in connection with an electrolytic cell. The system includes: a concentration tank, at least one concentration detection unit, a draining component, and a replenishment component. The concentration tank and electrolytic cell are spaced apart for temporary storage of cobalt chloride raw material. The concentration detection unit is built into and connected to the electrolytic cell to detect the concentration of the liquid within it. The draining component is connected to and communicates with the interior of the electrolytic cell to quantitatively drain the liquid. The replenishment component is connected to both the interior of the concentration tank and the interior of the electrolytic cell to quantitatively replenish cobalt chloride raw material. This utility model effectively solves the problem in the prior art where manual control during the replenishment of cobalt chloride solution to the electrolytic cell prevents automated production, thus reducing the yield of electrolytic cobalt.

Description

Technical Field

[0001] This utility model relates to the field of cobalt electrowinning technology, specifically to a timed liquid replenishment system for cobalt electrowinning production. Background Technology

[0002] To enable the recycling of residual liquid generated during cobalt electrowinning, relevant research has emerged.

[0003] For example, Chinese invention patent CN113122881A, entitled "A Process for Recycling Cobalt Residue in Cobalt Electrodeposition," describes a process where concentrated hydrochloric acid is added to a cobalt residue with a cobalt concentration of 50-60 g / L generated during cobalt chloride electrodeposition to prepare a cobalt-containing hydrochloric acid solution. This solution is then back-extracted using a loaded organic extractant to obtain a cobalt chloride solution with a cobalt concentration of 150-170 g / L. This cobalt chloride solution is then sent to a closed cobalt chloride electrodeposition cell to prepare electrodecomposed cobalt. By employing this process, not only is the amount of water and cobalt chloride raw material entering the electrodeposition unit reduced, but the amount of evaporation water needed to maintain the balance of the entire apparatus is also reduced, lowering costs and achieving energy conservation and consumption reduction.

[0004] However, in actual production, the process of replenishing the cobalt chloride solution with a cobalt concentration of 150-170 g / L obtained after back-extraction into the electrolytic cell requires manual control, which affects the production progress and leads to a reduction in the yield of electrolytic cobalt. Utility Model Content

[0005] The purpose of this invention is to overcome the above-mentioned technical deficiencies and propose a timed liquid replenishment system for cobalt electrolytic production. This system solves the technical problem in the prior art where manual control is required to replenish cobalt chloride solution into the electrolytic cell, which prevents automated production and thus reduces the yield of electrolytic cobalt.

[0006] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution:

[0007] This utility model provides a timed liquid replenishment system for cobalt electrolytic production, configured in connection with an electrolytic cell, comprising:

[0008] A concentration tank, spaced apart from the electrolytic cell, is used to temporarily store cobalt chloride raw material;

[0009] At least one concentration detection unit is built into and connected to the electrolytic cell for detecting the concentration of the liquid in the electrolytic cell;

[0010] A liquid drainage assembly, connected to and in communication with the interior of the electrolytic cell, is used to quantitatively drain the liquid from the electrolytic cell; and

[0011] The replenishment component is connected to the interior of the concentration tank and the interior of the electrolytic cell, respectively, and is used to quantitatively replenish cobalt chloride raw material into the electrolytic cell.

[0012] In some embodiments, the draining assembly includes a first water pump and a control unit. The inlet end of the first water pump is connected to the interior of the electrolytic cell, and the outlet end is connected to the exterior of the electrolytic cell, for draining liquid from the reactor. The control unit is movably built into the electrolytic cell and electrically connected to the first water pump, for terminating the operation of the first water pump.

[0013] In some embodiments, the control component includes a touch switch, a contact rod, and a float. The touch switch has a fixed end and a contact end. The fixed end of the touch switch is connected to the inner wall of the electrolytic cell and is electrically connected to the first water pump. The contact rod is positioned relative to the contact end of the touch switch. The float floats on the liquid surface in the electrolytic cell and is connected to the contact rod, which drives the contact rod to move with the liquid level change in the electrolytic cell, and causes the contact rod to abut against the contact end of the touch switch.

[0014] In some embodiments, the draining assembly further includes at least one guide plate, which is parallel to and spaced apart from the inner wall of the electrolytic cell and connected to the inner wall of the electrolytic cell. A guide groove is formed between the guide plate and the inner wall of the electrolytic cell, and the float is movably housed within the guide groove.

[0015] In some embodiments, the guide plate has a connecting groove along its length, and the drainage assembly further includes at least one connecting rod and at least one limiting block. The connecting rod is slidably embedded in the connecting groove along the guide of the connecting groove. One end of the connecting rod is connected to the float, and the limiting block is connected to the other end of the connecting rod. The cross-sectional area of ​​the limiting block is larger than the cross-sectional area of ​​the connecting groove.

[0016] In some embodiments, the number of guide plates in the drainage assembly is two, the two guide plates are arranged perpendicularly to each other, one guide plate is disposed between the inner wall of the electrolytic cell and the other guide plate, and is respectively connected to the inner wall of the electrolytic cell and the other guide plate.

[0017] In some embodiments, the connecting rods are arranged in a one-to-one correspondence with the guide plates, the planes on which the two connecting rods are located are perpendicular to each other, and both connecting rods are connected to the float.

[0018] In some embodiments, the replenishment assembly includes a second water pump, a filter screen, and a flow meter. The inlet end of the second water pump is connected to the interior of the concentration tank, and the outlet end is connected to the interior of the electrolysis tank. The filter screen is disposed at the inlet end of the second water pump, and the flow meter is disposed at the outlet end of the second water pump.

[0019] In some embodiments, the timed replenishment system for cobalt electrowinning production further includes a control component, which is electrically connected to at least one of the concentration detection units, the first water pump, and the second water pump.

[0020] In some embodiments, the timed replenishment system for cobalt electrowinning production further includes a stirring assembly, which is built into and connected to the concentration tank.

[0021] Compared with existing technologies, the beneficial effects of the timed replenishment system for cobalt electrowinning production provided by this utility model include: the concentration tank and the electrolytic cell are set apart for temporary storage of cobalt chloride raw material; the concentration detection unit is used to detect the concentration of the liquid in the electrolytic cell; the draining component can first quantitatively drain the lower concentration reaction solution in the electrolytic cell; and the replenishment component can quantitatively replenish the cobalt chloride raw material in the concentration tank to the electrolytic cell. Compared with existing technologies, by using the concentration detection unit to detect the concentration of the reaction solution in the electrolytic cell, and by first quantitatively draining the lower concentration reaction solution through the draining component, and then quantitatively replenishing the cobalt chloride raw material in the electrolytic cell through the replenishment component, the cobalt chloride solution is automatically replenished, reducing manual operation and improving production efficiency. This solves the technical problem in existing technologies where manual assistance in replenishing cobalt chloride solution to the electrolytic cell cannot achieve automated production, thus leading to a decrease in the yield of electrowinning cobalt. Attached Figure Description

[0022] Figure 1 This is a cross-sectional view of a timed liquid replenishment system for cobalt electrowinning production according to an embodiment of the present invention;

[0023] Figure 2 It is along Figure 1 Enlarged view of point A in the middle;

[0024] Figure 3 This is a cross-sectional view of an embodiment of the present invention showing the connection between an electrolytic cell and a float, a guide plate, a connecting rod, and a limiting block.

[0025] Figure 4 This is a schematic diagram of the electrical connection between the control component, concentration detection unit, first water pump, and second water pump provided in one embodiment of the present invention.

[0026] Explanation of reference numerals in the attached figures:

[0027] Concentration tank 100; concentration detection unit 200; drainage assembly 300; first water pump 310; control component 320; touch switch 321; contact rod 322; float ball 323; guide plate 330; connecting rod 340;

[0028] Limiting block 350; liquid replenishment component 400; second water pump 410; filter screen 420; flow meter 430; electrolytic cell 500; control component 600; stirring component 700. Detailed Implementation

[0029] 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 specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0030] To address the technical problem of reduced cobalt electroplating yield due to the inability to automate production through manual control when replenishing cobalt chloride solution into the electrolytic cell 500, this invention provides a timed replenishment system for cobalt electroplating production. This system utilizes a concentration detection unit 200 to detect the concentration of the reaction solution in the electrolytic cell 500, and a drainage component 300 to first quantitatively discharge a lower concentration of the reaction solution. Then, a replenishment component 400 quantitatively replenishes cobalt chloride raw material into the electrolytic cell 500, achieving automated replenishment of the cobalt chloride solution, reducing manual operation, and improving production efficiency.

[0031] Please see Figures 1 to 4 , Figure 1 This is a schematic diagram of a timed liquid replenishment system for cobalt electrowinning production according to an embodiment of the present invention. The timed liquid replenishment system for cobalt electrowinning production is configured in connection with an electrolytic cell 500 and includes: a concentration tank 100, at least one concentration detection unit 200, a draining component 300, and a replenishing component 400. The concentration tank 100 and the electrolytic cell 500 are spaced apart and are used to temporarily store cobalt chloride raw material. The concentration detection unit 200 is built into and connected to the electrolytic cell 500 and is used to detect the concentration of the liquid in the electrolytic cell 500. The draining component 300 is connected to the electrolytic cell 500 and communicates with the interior of the electrolytic cell 500 to quantitatively drain the liquid in the electrolytic cell 500. The replenishing component 400 can communicate with the interior of the concentration tank 100 and the interior of the electrolytic cell 500 respectively to quantitatively replenish cobalt chloride raw material into the electrolytic cell 500.

[0032] In this device, compared with the prior art, the concentration detection unit 200 detects the concentration of the reaction solution in the electrolytic cell 500, and the lower concentration reaction solution is first quantitatively discharged by the drain component 300. Then, the cobalt chloride raw material is quantitatively replenished into the electrolytic cell 500 by the replenishment component 400. This realizes the automated replenishment of cobalt chloride solution, reduces manual operation, and improves production efficiency. It can solve the technical problem in the prior art that the production of electrolytic cobalt is reduced because the manual auxiliary control cannot achieve automated production when replenishing cobalt chloride solution into the electrolytic cell 500.

[0033] Furthermore, the electrolytic cell 500 here is an electrolytic cell 500 used for producing electrolytic cobalt. The electrolytic cell 500 is filled with cobalt chloride solution, and multiple anode plates and cathode plates are arranged alternately in sequence. For reference, please refer to the Chinese invention patent with publication number CN212610923U, entitled "An Electrolytic Cobalt Circulation System Capable of Balancing the Acidity Value of the Electrolyte". It will not be elaborated here.

[0034] Furthermore, the concentration detection unit 200 here is a common and readily available concentration sensor on the market, which is a conventional setting known to those skilled in the art. When the concentration detection unit 200 detects that the concentration of cobalt chloride solution in the electrolytic cell 500 is lower than the preset value, it can generate an alarm signal. By uniformly setting multiple concentration detection units 200, the accuracy of detection can be improved, which will not be elaborated here.

[0035] In this embodiment, as Figure 1 , Figure 2 As shown, the drain assembly 300 includes a first water pump 310 and a control unit 320. The inlet end of the first water pump 310 is connected to the interior of the electrolytic cell 500, and the outlet end is connected to the exterior of the electrolytic cell 500, for draining the liquid in the reactor. The control unit 320 is movably built into the electrolytic cell 500 and electrically connected to the first water pump 310, for terminating the operation of the first water pump 310.

[0036] The cobalt chloride solution after reaction in the electrolytic cell 500 is discharged by the first water pump 310. After a certain amount of the cobalt chloride solution after reaction is discharged, the relative position of the control unit 320 changes, which can control the first water pump 310 to stop operating and stop the discharge, realizing automatic replenishment. The discharged cobalt chloride solution after reaction is collected or recycled. For reference, please refer to Chinese invention patent with publication number CN113122881A, entitled "A process for recycling cobalt residue in the process of cobalt electrowinning". It will not be elaborated here.

[0037] Furthermore, the first water pump 310 here is a peristaltic pump that is common and readily available on the market, and is a conventional setting known to those skilled in the art, so it will not be described in detail here.

[0038] In one embodiment, please refer to Figure 2 , Figure 3 The control component 320 includes a touch switch 321, a contact rod 322, and a float 323. The touch switch 321 has a fixed end and a contact end. The fixed end of the touch switch 321 is connected to the inner wall of the electrolytic cell 500 and is electrically connected to the first water pump 310. The contact rod 322 is set relative to the contact end of the touch switch 321. The float 323 floats on the liquid surface in the electrolytic cell 500 and is connected to the contact rod 322. It is used to drive the contact rod 322 to move with the change of liquid level in the electrolytic cell 500 and to make the contact rod 322 abut against the contact end of the touch switch 321.

[0039] The touch switch 321, the contact rod 322, and the float 323 form an automated control structure. When the float 323 rises during the replenishment process, the contact rod 322 on the float 323 can abut against the touch end of the touch switch 321, thereby realizing the automated control of the second water pump 410.

[0040] Furthermore, the touch switch 321 here is a common and readily available device on the market, capable of automatic reset. This is a conventional setting known to those skilled in the art, and will not be described in detail here.

[0041] In one embodiment, please refer to Figures 1 to 3 The drain assembly 300 also includes at least one guide plate 330. The guide plate 330 is parallel to and spaced apart from the inner wall of the electrolytic cell 500 and is connected to the inner wall of the electrolytic cell 500. A guide groove is formed between the guide plate 330 and the inner wall of the electrolytic cell 500, and the float 323 is movably built into the guide groove.

[0042] The guide plate 330 cooperates with the inner wall of the electrolytic cell 500 to guide the float 323 to slide in the guide groove, thereby improving the stability of the automated operation of the device.

[0043] In one embodiment, please refer to Figure 2 , Figure 3 The guide plate 330 has a connecting groove along its length. The drainage assembly 300 also includes at least one connecting rod 340 and at least one limiting block 350. The connecting rod 340 is slidably embedded in the connecting groove along the guide groove. One end of the connecting rod 340 is connected to the float 323, and the limiting block 350 is connected to the other end of the connecting rod 340. The cross-sectional area of ​​the limiting block 350 is larger than the cross-sectional area of ​​the connecting groove.

[0044] The connecting rod 340 and the limiting block 350 cooperate with each other to further restrict the movement of the float 323, so that the contact rod 322 can stably abut against the touch end of the touch switch 321.

[0045] Furthermore, the cross-sectional area of ​​the limiting block 350 is larger than that of the connecting groove, and both the connecting rod 340 and the limiting block 350 are made of lightweight materials, such as plastic, which can float on the surface of the cobalt chloride solution. This will not be elaborated further here.

[0046] In one embodiment, please refer to Figure 3 The drainage assembly 300 has two guide plates 330, which are arranged perpendicularly to each other. One guide plate 330 is located between the inner wall of the electrolytic cell 500 and the other guide plate 330, and is connected to the inner wall of the electrolytic cell 500 and the other guide plate 330 respectively.

[0047] The two guide plates 330 are set perpendicular to each other, which not only enables the connection between the guide plates 330 and the inner wall of the electrolytic cell 500, but also further restricts the movement of the float 323, thereby improving the stability of the device operation.

[0048] In one embodiment, please refer to Figure 3 The connecting rods 340 and the guide plate 330 are arranged in a one-to-one correspondence. The planes on which the two connecting rods 340 are located are perpendicular to each other, and both connecting rods 340 are connected to the float 323.

[0049] The connecting rod 340 and the guide plate 330 are designed to work together so that the float 323 can only move up and down in the vertical direction, which effectively ensures that the contact rod 322 can stably contact the touch end of the touch switch 321, thereby improving the stability of the device operation.

[0050] In this embodiment, as Figure 1 As shown, the replenishment component 400 includes a second water pump 410, a filter screen 420, and a flow meter 430. The inlet end of the second water pump 410 is connected to the interior of the concentration tank 100, and the outlet end is connected to the interior of the electrolysis tank 500. The filter screen 420 is disposed at the inlet end of the second water pump 410, and the flow meter 430 is disposed at the outlet end of the second water pump 410.

[0051] The second water pump 410 replenishes the electrolytic cell 500 with a higher concentration of cobalt chloride solution. The solution in the concentration tank can be filtered through the filter screen 420, and the flow meter 430 can achieve quantitative replenishment, thereby effectively ensuring the normal operation of cobalt electrowinning production.

[0052] Furthermore, the second water pump 410, filter screen 420 and flow meter 430 are all common and readily available equipment on the market. This is a conventional setup known to those skilled in the art, and will not be described in detail here.

[0053] In one embodiment, please refer to Figure 4The timed liquid replenishment system for cobalt electrowinning production also includes a control component 600, which is electrically connected to at least one concentration detection unit 200, a first water pump 310, and a second water pump 410.

[0054] By using the control component 600 to electrically connect the concentration detection unit 200, the first water pump 310 and the second water pump 410, the operation of the first water pump 310 and the second water pump 410 can be automatically controlled by using the liquid concentration detected by the concentration detection unit 200, thereby further reducing the labor intensity of workers and improving production efficiency.

[0055] Furthermore, the control component 600 here includes a PLC controller, a driver, a memory, a receiving module, and a transmitting module, which can realize automated control and production. The control component 600 here is a common and readily available device on the market, and is a conventional setup known to those skilled in the art, so it will not be described in detail here.

[0056] In this embodiment, please refer to Figure 1 The timed replenishment system for cobalt electrowinning production also includes a stirring assembly 700, which is built into and connected to the concentration tank 100.

[0057] By installing a stirring component 700 in the concentration tank 100, the cobalt chloride solution in the concentration tank 100 can be continuously stirred, preventing the cobalt chloride solution from crystallizing in the concentration tank 100, thereby affecting the concentration of cobalt chloride in the electrolytic cell 500.

[0058] Furthermore, the stirring assembly 700 here includes a stirring paddle and a drive motor. The stirring paddle is internally mounted in the thickening tank 100. The fixed end of the drive motor is connected to the thickening tank 100, and the output shaft is connected to the stirring paddle to drive the stirring paddle to rotate around its rotation axis. This will not be described in detail here.

[0059] To better understand this utility model, the following is combined with... Figures 1 to 4 The technical solution of this utility model is described in detail below:

[0060] A concentration tank 100 and an electrolytic cell 500 are spaced apart for temporary storage of cobalt chloride raw material. A concentration detection unit 200 detects the concentration of the liquid in the electrolytic cell 500. A drain assembly 300 first quantitatively drains the lower concentration reaction solution from the electrolytic cell 500, and a replenishment assembly 400 quantitatively replenishes the cobalt chloride raw material from the concentration tank 100 into the electrolytic cell 500. Compared to existing technologies, by using the concentration detection unit 200 to detect the concentration of the reaction solution in the electrolytic cell 500, first quantitatively draining the lower concentration reaction solution through the drain assembly 300, and then quantitatively replenishing the cobalt chloride raw material into the electrolytic cell 500 through the replenishment assembly 400, the cobalt chloride solution is automatically replenished, reducing manual operation and improving production efficiency.

[0061] In the specific working process of this utility model, when the concentration detection unit 200 detects that the concentration of cobalt chloride solution in the electrolytic cell 500 is lower than the preset value, it can generate an alarm signal. The first water pump 310 discharges the reacted cobalt chloride solution in the electrolytic cell 500. After a certain amount of reacted cobalt chloride solution is discharged, the discharge stops. Then, the second water pump 410 replenishes the solution in the electrolytic cell 500. When the float 323 rises during the replenishment process, the contact rod 322 on the float 323 can abut against the touch end of the touch switch 321. The second water pump 410 stops replenishing the solution in the electrolytic cell 500, thereby realizing automated control and replenishment.

[0062] This application, through the aforementioned system, can solve the technical problem in the prior art where the production of electrolytic cobalt is reduced because manual auxiliary control cannot achieve automated production when adding cobalt chloride solution to the electrolytic cell 500.

[0063] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A timed liquid replenishment system for cobalt electrowinning production, configured in connection with an electrolytic cell, characterized in that, include: A concentration tank, spaced apart from the electrolytic cell, is used to temporarily store cobalt chloride raw material; At least one concentration detection unit is built into and connected to the electrolytic cell for detecting the concentration of the liquid in the electrolytic cell; A drain assembly is connected to the electrolytic cell and communicates with the interior of the electrolytic cell, used to quantitatively drain the liquid in the electrolytic cell; as well as The replenishment component is connected to the interior of the concentration tank and the interior of the electrolytic cell, respectively, and is used to quantitatively replenish cobalt chloride raw material into the electrolytic cell.

2. The timed liquid replenishment system for cobalt electrowinning production according to claim 1, characterized in that, The liquid discharge assembly includes a first water pump and a control unit. The inlet end of the first water pump is connected to the interior of the electrolytic cell, and the outlet end is connected to the exterior of the electrolytic cell. It is used to discharge the liquid in the reactor. The control unit is movably built into the electrolytic cell and electrically connected to the first water pump. It is used to terminate the operation of the first water pump.

3. The timed liquid replenishment system for cobalt electrowinning production according to claim 2, characterized in that, The control component includes a touch switch, a contact rod, and a float. The touch switch has a fixed end and a contact end. The fixed end of the touch switch is connected to the inner wall of the electrolytic cell and is electrically connected to the first water pump. The contact rod is positioned opposite the contact end of the touch switch. The float floats on the liquid surface in the electrolytic cell and is connected to the contact rod, which moves the contact rod according to the change in liquid level in the electrolytic cell, and causes the contact rod to abut against the contact end of the touch switch.

4. The timed liquid replenishment system for cobalt electrowinning production according to claim 3, characterized in that, The draining assembly also includes at least one guide plate, which is parallel to and spaced apart from the inner wall of the electrolytic cell and connected to the inner wall of the electrolytic cell. A guide groove is formed between the guide plate and the inner wall of the electrolytic cell, and the float is movably housed in the guide groove.

5. The timed liquid replenishment system for cobalt electrowinning production according to claim 4, characterized in that, The guide plate has a connecting groove along its length. The drainage assembly also includes at least one connecting rod and at least one limiting block. The connecting rod is slidably embedded in the connecting groove along its guide. One end of the connecting rod is connected to the float. The limiting block is connected to the other end of the connecting rod, and the cross-sectional area of ​​the limiting block is larger than the cross-sectional area of ​​the connecting groove.

6. The timed liquid replenishment system for cobalt electrowinning production according to claim 5, characterized in that, The drainage assembly has two guide plates, which are arranged perpendicularly to each other. One guide plate is located between the inner wall of the electrolytic cell and the other guide plate, and is connected to the inner wall of the electrolytic cell and the other guide plate, respectively.

7. The timed liquid replenishment system for cobalt electrowinning production according to claim 6, characterized in that, The connecting rods are arranged in a one-to-one correspondence with the guide plates, the planes on which the two connecting rods are located are perpendicular to each other, and both connecting rods are connected to the float.

8. The timed liquid replenishment system for cobalt electrowinning production according to claim 2, characterized in that, The replenishment assembly includes a second water pump, a filter screen, and a flow meter. The inlet end of the second water pump is connected to the interior of the concentration tank, and the outlet end is connected to the interior of the electrolysis tank. The filter screen is located at the inlet end of the second water pump, and the flow meter is located at the outlet end of the second water pump.

9. The timed liquid replenishment system for cobalt electrowinning production according to claim 8, characterized in that, The timed liquid replenishment system for cobalt electrowinning production also includes a control component, which is electrically connected to at least one of the concentration detection units, the first water pump, and the second water pump.

10. The timed liquid replenishment system for cobalt electrowinning production according to claim 1, characterized in that, The timed replenishment system for cobalt electrowinning production also includes a stirring assembly, which is built into and connected to the concentration tank.

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