Production device and process of electrolytic nickel
By using an air pump and filter in the electrolytic nickel production device combined with slope design, the problem of gas inlet during the collection of anode sludge is solved, the air discharge and effective collection of anode sludge is achieved, and the quality of the finished product of electrolytic nickel is improved.
Patent Information
- Application Number
- CN202411425464.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-12
- Publication Date
- 2025-01-03
AI Technical Summary
In existing electrolytic nickel production devices, gases are likely to enter the electrolytic cell when collecting anode mud, resulting in excessive air in the electrolytic cell and affecting the quality of the finished product.
A device including an electrolytic cell, a cathode, anode, a circulation tank, a circulation pump, a controller, an air pump, a filter and a liquid level adjustment mechanism is designed to discharge the air in the electrolytic cell through the air pump, and the gravity effect of the filter and slope is used to make the The anode mud falls into the storage tank and the electrolyte level is automatically adjusted through the liquid level adjustment mechanism to prevent the anode mud from interfering with the electrolysis process.
Effectively discharge air in the electrolytic cell, reduce the occurrence of plate pitting, ensure the stability of the electrolytic liquid level, and improve the electrolytic quality and the collection efficiency of the anode mud.
Smart Images
Figure CN119243263A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of electrolytic refining, and in particular relates to a production device and a process for electrolytic nickel. Background Art
[0002] Electrolytic nickel products have high purity, low impurity content, high melting point, strong corrosion resistance, good mechanical properties such as pressure processing in cold and hot states, and also have special physical properties: magnetism, high elasticity, electric vacuum properties, etc., so they are widely used in industry.
[0003] At present, there is an automatic anode mud cleaning system and an automatic anode mud cleaning method on the market with announcement number CN107012487B, which include a guide funnel, a mud discharge pipe, and a filter press arranged at the bottom of the electrolytic cell. The guide funnel connects the upper surface and the lower surface of the bottom of the electrolytic cell. The guide funnel is a conical structure with an inclination angle of 38-50 degrees. The guide funnel with the conical structure includes an upper opening located on the upper surface of the bottom of the electrolytic cell and a mud discharge port located on the lower surface of the bottom of the electrolytic cell. The mud discharge port is connected to the mud discharge pipe, and the mud discharge pipe transports the anode mud collected by the guide funnel to the filter press.
[0004] But there is also a problem: this scheme makes it easy for gas to enter from the pipeline when collecting anode mud, resulting in excessive air content in the electrolytic cell and causing pitting in the finished product. Summary of the invention
[0005] The present invention provides a production device for electrolytic nickel, which is used to solve the problem of excessive air in the electrolytic cell.
[0006] The present invention provides a production device for electrolytic nickel, including an electrolytic cell: the electrolytic cell is provided with a liquid inlet and a liquid outlet, and the bottom of the electrolytic cell is in a slope shape; a cathode: the cathode is detachably fixedly connected to the electrolytic cell, and an anode: the anode is detachably fixedly connected to the electrolytic cell, and the anode is parallel to the cathode; a power supply: the power supply is electrically connected to the anode and the cathode; a circulation tank: the circulation tank is used to store the circulated electrolyte, and the circulation tank is connected to the liquid outlet. A circulation pump: the circulation pump is used to provide electrolyte circulation, the circulation pump is connected to the liquid inlet, and the circulation pump is connected to the circulation tank; a controller: the controller is electrically connected to the circulation pump; and further includes: a storage tank: the storage tank is fixedly connected to the bottom of the electrolytic cell, and the storage tank is located at the bottom of the slope; a filter screen, the filter screen is used to allow gas to pass through, and the filter screen is fixedly connected to the slope; an air pump: the air pump is connected to the slope, and the air pump is electrically connected to the controller.
[0007] The principle of this scheme is: fix the cathode and anode on the electrolytic cell, then clean the stains on the cathode, and then add electrolyte. The operator turns on the power, starts electrolysis, starts the circulation pump, and then the controller starts the air pump to pass a stable gas insoluble in water into the electrolytic cell. The gas enters the electrolytic cell through the filter, bringing the air out of the electrolytic cell. At the same time, the gas flushed out of the filter will loosen the anode mud adhering to the slope, and then it falls into the storage tank driven by the flowing liquid and the slope.
[0008] The beneficial effects of this solution are: 1. The air in the electrolytic cell is discharged through the air pump to prevent the air from affecting the cathode plate. 2. The gravity effect of the gas passing through the filter and the slope makes it easier for the anode mud that is easy to adhere to fall into the storage tank, preventing the anode mud from interfering with the electrolysis process.
[0009] Furthermore, it also includes a liquid level regulating mechanism, which includes a flow limiting plate, a slide rail, an air bag and a connecting line. The slide rail is fixedly connected to the liquid outlet, the slide rail is slidably connected to the flow limiting plate, the flow limiting plate cooperates with the liquid outlet, and the flow limiting plate is fixedly connected to the air bag through a connecting line.
[0010] The liquid level in the electrolytic cell is relatively important. When the electrolyte level is too low, the anode plate will not be fully electrolyzed, resulting in low conversion efficiency. When the electrolyte level is in a normal state, the airbag will float on the surface of the electrolyte. At this time, the limiting plate is located above the liquid outlet and is not blocked. At this time, the diameters of the liquid inlet and the liquid outlet are the same, and the flow rate is kept consistent. When the electrolyte level drops due to temperature or leakage, the airbag will also drop, and the limiting plate will also move downward with the slide rail. The limiting plate covers the liquid outlet, making the flow rate at the inlet greater than the flow rate at the outlet for refilling. When the liquid level returns to its original position, the pressure-shielding rod will move up and return to the state of maintaining a consistent flow rate. The mechanism can self-regulate the outlet flow to achieve the effect of controlling the liquid level. Compared with existing technologies, the mechanism is stable and lightweight.
[0011] Furthermore, it also includes a pressure rod, a spring and a steel cable, one end of the steel cable is fixedly connected to the current limiting plate, and the other end is fixedly connected to the pressure rod, the pressure rod is slidably connected to the electrolytic cell, the filter is fixedly connected to the slope through the spring, and the pressure rod cooperates with the filter. When the liquid level fluctuates, the current limiting plate will move up and down, and the current limiting plate will drive the pressure rod to move up and down through the steel cable. At this time, the pressure rod will press the filter up and down, and the filter will shake back and forth under the action of the spring to prevent the anode mud from adhering to the filter, and shake the anode mud into the storage tank.
[0012] Furthermore, it also includes a support bracket, which is fixedly connected to the electrolytic cell. The bracket is used to fix the electrolytic cell and plays a role in stabilizing and preventing shaking.
[0013] Furthermore, it also includes a contact switch and an alarm light, wherein the contact switch is located at the bottom of the slide rail, the contact switch is electrically connected to the controller, the contact switch cooperates with the current limiting plate, and the alarm light is electrically connected to the controller. When the airbag is broken due to the external environment, the current limiting plate will drop to the bottom of the slide rail, and the current limiting plate will touch the contact switch, which will be triggered. The controller controls the alarm light to flash, reminding the staff that the liquid level adjustment mechanism is damaged. The mechanism can automatically report an error to prevent the liquid level adjustment mechanism from failing and not being discovered for a long time, resulting in a decline in the quality of the final product. At the same time, the current limiting plate will not block the liquid outlet when it slides to the bottom, which effectively prevents the airbag from being damaged and causing the liquid outlet to be completely blocked.
[0014] The present invention also provides a production process of electrolytic nickel, comprising the following steps: Step S10: Select a titanium plate as a permanent cathode and a nickel plate as an anode, fix the cathode and the anode on the electrolytic cell, and then clean the stains on the cathode; Step S20: adding electrolyte, starting the power supply, and the operator starting the circulation pump and the air pump through the controller; Step S30: When the liquid level drops due to temperature and leakage, the liquid level regulating mechanism automatically adjusts the liquid outlet flow rate and stops the air pump to allow the anode mud to settle; Step S40: starting the cooling system and the current density detector to keep the environment in the electrolytic cell stable; Step S50: If the airbag is damaged, the current limiting plate will trigger the contact switch and the alarm light will flash; Step S60: until the cathode nickel reaches the set purity, remove the nickel adhering to the cathode, replace the anode, and the electrolysis is completed.
[0015] This process removes the air in the electrolytic cell through an air pump, reducing the probability of pitting on the plate. At the same time, this process automatically adjusts the liquid level through a liquid level adjustment mechanism, so that the electrolyte level is in an optimal state, thereby increasing the amount of electrolyte. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a structural diagram of an electrolytic nickel production device. Figure 2 This is an enlarged view of an electrolytic nickel production device.
[0017] The figure marks in the specification include: 1. electrolytic cell; 2. cathode; 3. anode; 4. liquid outlet; 5. liquid inlet; 6. pressure rod; 7. storage tank; 8. circulation pump; 9. bracket; 10. air pump; 11. slide rail; 12. air bag; 13. steel cable; 14. filter; 15. connecting line; 16. contact switch; 17. spring. DETAILED DESCRIPTION
[0018] Basically as attached Figure 1 As shown: The present solution provides a production device for electrolytic nickel, including an electrolytic cell 1, a cathode 2, a power supply, an anode 3, a circulation tank, a circulation pump 8, a controller, a storage tank 7, a cooling system, a current density detector, a filter 14, an air pump 10, a bracket 9, a liquid level adjustment mechanism, a pressure rod 6, a spring 17, a steel cable 13, an alarm light and a contact switch 16. The electrolytic cell 1 is provided with a liquid inlet 5 and a liquid outlet 4, and the bottom of the electrolytic cell 1 is in a slope shape, with the right side higher than the left side; the cathode 2 is detachably fixedly connected to the electrolytic cell 1, and the anode 3 is detachably fixedly connected to the electrolytic cell 1, and the anode 3 is parallel to the cathode 2; the electrolytic cell 1 usually adopts a diaphragm electrolytic cell 1 or a diaphragmless electrolytic cell 1, and the present solution adopts a diaphragmless electrolytic cell 1. The diaphragmless electrolytic cell 1 relies on the electrochemical properties of the electrolyte itself to achieve the separation of the products of the anode 3 and the cathode 2.
[0019] The power supply is electrically connected to the anode 3 and the cathode 2; the circulation tank is used to store the circulated electrolyte, and the circulation tank is connected to the liquid outlet 4. The circulation pump 8 is used to provide electrolyte circulation, and the circulation pump 8 is connected to the liquid inlet 5, and the circulation pump 8 is connected to the circulation tank; the controller is electrically connected to the circulation pump 8; the storage tank 7 is fixedly connected to the bottom of the electrolytic cell 1, and the storage tank 7 is located at the bottom of the slope; the filter screen 14 is used to allow gas to pass through, and the filter screen 14 is fixedly connected to the slope. The air pump 10 is connected to the slope, and the air pump 10 is electrically connected to the controller. The bracket 9 is fixedly connected to the electrolytic cell 1. The bracket 9 is used to fix the electrolytic cell 1, and plays a role in stabilizing and preventing shaking.
[0020] The current density detector is electrically connected to the controller, and the current density detector can select the appropriate current density according to the properties of the electrolyte. Too high current density may cause problems such as equipment overheating, increased electrolyte temperature, and intensified oxygen evolution reaction; too low current density may reduce production efficiency. By real-time monitoring and adjusting the current density, the stability and efficiency of the electrolysis process are ensured. When the current density is unstable, the controller controls the power supply to adjust the voltage and current.
[0021] The cooling system is fixed on the electrolytic cell 1, and the cooling system is electrically connected to the controller. The electrolysis temperature has a direct impact on the electrolysis reaction rate, electrolyte conductivity, and the occurrence of side reactions. A suitable electrolysis temperature can promote the rapid deposition of nickel ions while inhibiting the deposition of harmful impurities. A cooling system is usually used to maintain the electrolyte within a certain temperature range.
[0022] The contact switch 16 is located at the bottom of the slide rail 11, and the contact switch 16 is electrically connected to the controller. When the current limiting plate fails due to the failure of the airbag 12 or the electrolyte is abnormally low in liquid, it will fall to the bottom of the slide rail 11, and it will touch the contact switch 16, which will not be touched under the buoyancy of the liquid at ordinary times. The alarm light is electrically connected to the controller. When the airbag 12 is broken due to the external environment, the current limiting plate will drop to the bottom of the slide rail 11. At this time, the current limiting plate will touch the contact switch 16, and the contact switch 16 will be triggered. The controller controls the alarm light to flash, reminding the staff that the liquid level adjustment mechanism is damaged. The mechanism can automatically report an error to prevent the failure of the liquid level adjustment mechanism, and no one will find it for a long time, resulting in a decrease in the quality of the final product. At the same time, the current limiting plate will not block the liquid outlet 4 when it slides to the bottom, which effectively prevents the problem of damage to the airbag 12 and causing the liquid outlet 4 to be completely blocked.
[0023] As attached Figure 1 , Figure 2 As shown: The liquid level regulating mechanism includes a flow limiting plate, a slide rail 11, an air bag 12 and a connecting line 15. The slide rail 11 is fixedly connected to the liquid outlet 4, and the slide rail 11 is slidably connected to the flow limiting plate. The flow limiting plate is located above the liquid outlet 4 at a normal liquid level and does not block the liquid outlet 4. When the liquid level drops, the flow limiting plate will drop to block part of the liquid outlet 4, reducing the liquid outflow rate. The flow limiting plate and the air bag 12 are fixedly connected by the connecting line 15. One end of the steel cable 13 is fixedly connected to the flow limiting plate, and the other end is fixedly connected to the pressure rod 6. The pressure rod 6 is slidably connected to the electrolytic cell 1. The filter screen 14 is fixedly connected to the slope through the spring 17. When the liquid level fluctuates, the flow limiting plate will move up and down, and the flow limiting plate will drive the pressure rod 6 to move up and down through the steel cable 13. At this time, the pressure rod 6 will press the filter screen 14 up and down, and the filter screen 14 will shake back and forth under the action of the spring 17 to prevent the anode 3 mud from adhering to the filter screen 14 and shake the anode 3 mud into the storage tank 7.
[0024] The present invention also provides a production process of electrolytic nickel, comprising the following steps: Step S10: Select a titanium plate as the permanent cathode 2, select a nickel plate as the anode 3, fix the cathode 2 and the anode 3 on the electrolytic cell 1, and then clean the stains on the cathode 2; Step S20: Add electrolyte, start the power supply, and the operator starts the circulation pump 8 and the air pump 10 through the controller to introduce a stable gas insoluble in water into the electrolytic cell 1. The gas enters the electrolytic cell 1 through the filter 14, and takes the air out of the electrolytic cell 1. At the same time, the gas flushed out by the filter 14 will loosen the anode 3 mud adhered to the slope, and then fall into the storage tank 7 driven by the flowing liquid and the slope; Step S30: The liquid level in the electrolytic cell 1 is relatively important. When the electrolyte level is too low, the electrolysis of the anode plate 3 will be incomplete, resulting in low conversion efficiency. When the electrolyte level is in a normal state, the airbag 12 will float on the surface of the electrolyte. At this time, the current limiting plate is located above the liquid outlet 4 and is not blocked. At this time, the diameters of the liquid inlet 5 and the liquid outlet 4 are consistent, and the flow rate is kept consistent. When the electrolyte level drops due to temperature or leakage, the airbag 12 will also drop at this time, and the current limiting plate will also move downward with the slide rail 11. The current limiting plate covers the liquid outlet 4, so that the flow rate of the liquid inlet 5 is greater than the flow rate of the liquid outlet 4, and the liquid is replenished. When the liquid level returns to its original position, the pressure shielding rod 6 will move up and return to the state of maintaining a consistent flow rate. At the same time, when the liquid level fluctuates, the flow limiting plate will move up and down, and the flow limiting plate will drive the pressure rod 6 to move up and down through the steel cable 13. At this time, the pressure rod 6 will press the filter screen 14 up and down, and the filter screen 14 will shake back and forth under the action of the spring 17 to prevent the anode 3 mud from adhering to the filter screen 14 and shake the anode 3 mud into the storage tank 7.
[0025] Step S40: starting the cooling system and the current density detector to constantly detect the environment in the electrolytic cell 1, and adjusting the internal environment through the controller to keep the environment in the electrolytic cell 1 stable; Step S50: At this time, the current limiting plate will drop to the bottom of the slide rail 11, and the current limiting plate will touch the contact switch 16, which will trigger the alarm light to flash, reminding the staff that the liquid level adjustment mechanism is damaged; Step S60: until the nickel on cathode 2 reaches the set purity, remove the nickel adhering to cathode 2, replace anode 3, and the electrolysis is completed.
[0026] The beneficial effects of this solution are: 1. The air in the electrolytic cell 1 is discharged through the air pump 10 to prevent the air from affecting the cathode 2 plate. 2. The gravity effect of the gas passing through the filter 14 and the slope makes it easier for the anode 3 mud that is easy to adhere to fall into the storage tank 7, preventing the anode 3 mud from interfering with the electrolysis process. 3. The device can self-regulate the flow rate of the liquid outlet 4 to achieve the effect of controlling the liquid level. Compared with the existing technology, the device is stable and lightweight. 4. The mechanism can automatically report an error to prevent the liquid level adjustment mechanism from failing and not being discovered for a long time, resulting in a decrease in the quality of the final product. At the same time, the limiting plate will not block the liquid outlet 4 when it slides to the bottom, effectively preventing the air bag 12 from being damaged and causing the liquid outlet 4 to be completely blocked.
[0027] The above is only an embodiment of the present invention, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.
Claims
1. A production device for electrolytic nickel, comprising: Electrolytic cell (1): the electrolytic cell (1) is provided with a liquid inlet (5) and a liquid outlet (4), and the bottom of the electrolytic cell (1) is sloped; Cathode (2): The cathode (2) is detachably fixedly connected to the electrolytic cell (1). Anode (3): the anode (3) is detachably fixedly connected to the electrolytic cell (1), and the anode (3) is parallel to the cathode (2); Power supply: the power supply is electrically connected to the anode (3) and the cathode (2); Circulation tank: the circulation tank is used to store the circulated electrolyte, and the circulation tank is connected to the liquid outlet (4); Circulation pump (8): the circulation pump (8) is used to provide electrolyte circulation, the circulation pump (8) is connected to the liquid inlet (5), and the circulation pump (8) is connected to the circulation tank; Controller: The controller is electrically connected to the circulation pump (8); It is characterized by further comprising: Storage tank (7): the storage tank (7) is fixedly connected to the bottom of the electrolytic tank (1), and the storage tank (7) is located at the bottom of the slope; a filter screen (14), the filter screen (14) being used to allow gas to pass through, the filter screen (14) being fixedly connected to the slope; Air pump (10): the air pump (10) is in communication with the slope, and the air pump (10) is electrically connected to the controller.
2. The production device of electrolytic nickel according to claim 1, characterized in that: The liquid level regulating mechanism also comprises a flow regulating plate, a slide rail (11), an air bag (12) and a connecting line (15), wherein the slide rail (11) is fixedly connected to the liquid outlet (4), the slide rail (11) is slidably connected to the flow regulating plate, the flow regulating plate cooperates with the liquid outlet (4), and the flow regulating plate is fixedly connected to the air bag (12) via the connecting line (15).
3. The production device of electrolytic nickel according to claim 2, characterized in that: It also includes a pressure rod (6), a spring (17) and a steel cable (13), one end of the steel cable (13) is fixedly connected to the current limiting plate, and the other end is fixedly connected to the pressure rod (6), the pressure rod (6) is slidably connected to the electrolytic cell (1), the filter screen (14) is fixedly connected to the slope via the spring (17), and the pressure rod (6) cooperates with the filter screen (14).
4. The production device of electrolytic nickel according to claim 1, characterized in that: It also includes a support bracket (9), wherein the bracket (9) is fixedly connected to the electrolytic cell (1).
5. The production device of electrolytic nickel according to claim 3, characterized in that: It also includes a contact switch (16) and an alarm light, wherein the contact switch (16) is located at the bottom of the slide rail (11), the contact switch (16) is electrically connected to the controller, the contact switch (16) cooperates with the current limiting plate, and the alarm light is electrically connected to the controller.
6. A production process for electrolytic nickel, characterized in that: The following steps are involved: step S10: Select a titanium plate as a permanent cathode (2), select a nickel plate as an anode (3), fix the cathode (2) and the anode (3) on the electrolytic cell (1), and then clean the stains on the cathode (2); Step S20: adding electrolyte, starting the power supply, and the operator starting the circulation pump (8) and the air pump (10) through the controller; Step S30: When the liquid level drops due to temperature and leakage, the liquid level regulating mechanism automatically adjusts the liquid outlet flow rate and stops the air pump (10) to allow the anode (3) mud to settle; Step S40: starting the cooling system and the current density detector to keep the internal environment of the electrolytic cell (1) stable; Step S50: if the airbag (12) is damaged, the current limiting plate will trigger the contact switch (16), and the warning light will flash as an alarm; Step S60: until the nickel on the cathode (2) reaches a set purity, remove the nickel adhering to the cathode (2), replace the anode (3), and the electrolysis is completed.