Resin zinc removal device

Abstract

The utility model relates to a resin zinc removal device which is characterized in that the bottom of a barrel is connected with a conical bottom, a liquid inlet is formed in the lower part of the barrel, and the top of the barrel is connected with an upper sealing head; a sieve plate is arranged between the cone bottom and the cylinder body, a plurality of small holes I are formed in the sieve plate, and the diameter of the small holes I is smaller than that of resin; a residual liquid outlet is formed in the bottom of the cone bottom; a resin adding opening and a plurality of liquid outlet pipes are arranged on the upper sealing head; the liquid outlet pipe is connected with one end of a liquid outlet bent pipe, the other end of the liquid outlet bent pipe is arranged in the liquid collecting disc, and a liquid collecting disc outlet is formed in the bottom of the liquid collecting disc. According to the utility model, the functions of the moving bed, the liquid lifting device and the fluidized bed are integrated, so that the technological process of zinc removal of the resin of the original dense moving bed is shortened, and the integration degree of the equipment is improved. When the device is used for removing zinc, repeated blowing is not needed for resin regeneration, the resin regeneration time is shortened by 16%, the resin utilization rate is improved by 15%, the working efficiency is improved by 30%, and the resin zinc removal capacity is improved by 25%.

Description

Technical Field

[0001] This utility model relates to the technical field of solution purification and impurity removal equipment, specifically to a resin zinc removal device. Background Technology

[0002] In the electrolytic nickel production process, the chemical composition of the cathode solution determines the quality of the electrolytic nickel product. Currently, the zinc removal process after copper removal in nickel electrolysis uses a dense moving bed and a pump to form a zinc removal system, utilizing resin adsorption for zinc removal. However, the dense moving bed has a limited function, only performing resin adsorption. It requires a fluidized bed and a pump to complete the resin pretreatment, regeneration, and washing processes. Currently, three small fluidized beds are needed to assist one large dense moving bed, but this combination is not perfectly matched in terms of volume. The resin processing capacity of the entire device is limited, which not only restricts the flow efficiency of the moving bed but also affects the resin's zinc removal effect, thus impacting the production efficiency and product qualification rate of electrolytic nickel. Therefore, developing a resin zinc removal device that can improve resin treatment efficiency is of great significance. Utility Model Content

[0003] To address the problem of unsatisfactory resin treatment effect in the existing fluidized bed technology, this invention provides a resin zinc removal device that can improve resin treatment efficiency.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows:

[0005] A resin zinc removal device includes a conical bottom, a cylindrical body, an upper end cap, a liquid outlet pipe, a liquid outlet bend pipe, and a liquid collection tray. The bottom of the cylindrical body is connected to the conical bottom, the lower part of the cylindrical body has a liquid inlet, and the top of the cylindrical body is connected to the upper end cap. A sieve plate is provided between the conical bottom and the cylindrical body, and the sieve plate has a plurality of small holes, the diameter of which is smaller than the diameter of the resin. The bottom of the conical bottom has a residual liquid outlet. The upper end cap has a resin inlet and a plurality of liquid outlet pipes. One end of the liquid outlet pipe is connected to the liquid outlet bend pipe, and the other end of the liquid outlet bend pipe is located in the liquid collection tray. The bottom of the liquid collection tray has a liquid collection tray outlet.

[0006] Furthermore, the pipe connected to the residual liquid outlet is equipped with a residual liquid venting valve; the pipe connected to the liquid inlet is equipped with two branch pipes, one branch pipe is equipped with an inlet valve and a check valve, and the other branch pipe is equipped with a resin venting valve; the pipe connected to the liquid collection tray outlet is equipped with two branch pipes, one branch pipe is equipped with a drain valve, and the other branch pipe is equipped with a washing valve.

[0007] Furthermore, the conical bottom is disposed on the base.

[0008] Furthermore, the conical bottom, the cylinder, and the upper end cap are connected by a cylinder gasket and bolts.

[0009] Furthermore, a baffle is provided inside the liquid outlet tube, and the baffle has several small holes, the diameter of which is smaller than the diameter of the resin.

[0010] Furthermore, a platform is provided around the upper end cap, and the liquid collection tray is disposed on the platform.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] This invention provides a resin zinc removal device that eliminates the fluidized bed and pump in existing resin zinc removal systems, replacing the moving bed with a fixed bed. It integrates the functions of the moving bed, pump, and fluidized bed into one unit, completing the entire process of resin pretreatment, adsorption, regeneration, and washing within the fixed bed. This shortens the process flow of the original dense moving bed resin zinc removal, reduces the equipment footprint, simplifies the operator's workflow, and improves the equipment's integration level. When using this device for zinc removal, resin regeneration eliminates the need for repeated blowing, reducing regeneration time by 16%, increasing resin utilization by 15%, improving operational efficiency by 30%, and increasing zinc removal capacity by 25%. Furthermore, this device eliminates the need for compressed air to lift the liquid, saving compressed air energy. Attached Figure Description

[0013] The embodiments of this utility model will be further described below with reference to the accompanying drawings, wherein:

[0014] Figure 1 A schematic diagram of an embodiment of the resin zinc removal device is shown;

[0015] Figure 2 A top view of an embodiment of the sieve plate is shown;

[0016] Figure 3 A top view of an embodiment of the liquid outlet pipe is shown;

[0017] Attached diagram labels: 1-Base, 2-Residual liquid outlet, 3-Conical bottom, 4-Sieve plate, 5-Cylinder body, 6-Liquid inlet, 7-Upper end cap, 8-Resin inlet, 9-Discharge pipe, 10-Discharge bend, 11-Collection tray, 12-Collection tray outlet, 13-Residual liquid vent valve, 14-Inlet valve, 15-Check valve, 16-Resin vent valve, 17-Drain valve, 18-Washing valve. Detailed Implementation

[0018] 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 specific embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model.

[0019] Reference Appendix Figure 1-2 A resin zinc removal device includes a conical bottom 3, a cylindrical body 5, an upper end cap 7, a liquid outlet pipe 9, a liquid outlet bend 10, and a collection tray 11. The bottom of the cylindrical body 5 is connected to the conical bottom 3, and the lower part of the cylindrical body 5 is provided with a liquid inlet 6. The top of the cylindrical body 5 is connected to the upper end cap 7. A sieve plate 4 is provided between the conical bottom 3 and the cylindrical body 5. The sieve plate 4 is provided with several small holes, the diameter of which is smaller than the diameter of the resin, to prevent resin particles from falling into the conical bottom 3. The bottom of the conical bottom 3 is provided with a residual liquid outlet 2. The upper end cap 7 is provided with a resin inlet 8 and multiple liquid outlet pipes 9. The liquid outlet pipe 9 is connected to one end of the liquid outlet bend 10, and the other end of the liquid outlet bend 10 is located in the collection tray 11. The bottom of the collection tray 11 is provided with a collection tray outlet 12.

[0020] In one embodiment of this utility model, a residual liquid venting valve 13 is provided on the pipe connected to the residual liquid outlet 2; two branch pipes are provided on the pipe connected to the liquid inlet 6, one branch pipe is provided with an inlet valve 14 and a check valve 15, and the other branch pipe is provided with a resin venting valve 16; two branch pipes are provided on the pipe connected to the liquid collection tray outlet 12, one branch pipe is provided with a drain valve 17, and the other branch pipe is provided with a washing valve 18.

[0021] In one embodiment of this utility model, the conical base 3 is disposed on the base 1.

[0022] In one embodiment of this utility model, the conical bottom 3, the cylindrical body 5 and the upper end cap 7 are connected by a cylindrical body gasket and bolts.

[0023] Reference Appendix Figure 3 In one embodiment of this utility model, a baffle is provided inside the liquid outlet pipe 9, and the baffle is provided with a plurality of small holes II. The diameter of the small holes II is smaller than the diameter of the resin, so as to prevent resin particles from flowing out of the liquid outlet pipe 9.

[0024] In one embodiment of this utility model, a platform is provided around the upper sealing head 7, and the liquid collection tray 11 is disposed on the platform.

[0025] During resin pretreatment, close the residual liquid outlet 2 and the resin vent valve 16. Add new resin into the cylinder 5 through the resin inlet 8, adding water while adding resin, so that the resin and water flow into the cylinder 5 together, until the amount of resin added reaches 80% of the capacity of the cylinder 5.

[0026] During resin zinc removal, close the residual liquid outlet 2 and the washing valve 18, and open the inlet valve 14 and the outlet valve 17. After nickel electrolysis to remove copper, the liquid flows into the cylinder 5 through the inlet 6, passes through the resin in the cylinder 5 in an upward manner, and then enters the collection tray 11 through the outlet pipe 9 and the outlet bend 10. Finally, it is discharged through the outlet 12 of the collection tray, completing the resin adsorption zinc removal process.

[0027] During resin washing, close the residual liquid outlet 2 and the drain valve 17, and open the inlet valve 14 and the washing valve 18. The washing acid flows into the cylinder 5 through the inlet 6, passes through the resin in the cylinder 5 in an upward manner, and then enters the collection tray 11 through the outlet pipe 9 and the outlet bend 10, finally being discharged through the collection tray outlet 12. Afterward, open the residual liquid outlet 2 to discharge the residual acid in the cylinder 5, completing the resin washing process.

[0028] The mechanism of zinc adsorption and regeneration by resin is as follows:

[0029] Metal cation M in the solution after nickel electrolysis and copper removal 2+ Exchangeable ions H on the exchangeable group RH + Ion exchange occurs, causing cation M in the solution to... 2+ The H atoms on the resin are transferred into the resin exchange groups to form RM. + The resin enters the solution, completing the ion exchange process. Ion exchange is a reversible reaction, allowing the ion exchange resin to be reused. After saturation, the resin can be regenerated using dilute hydrochloric acid. The M group on the RM group of the resin... 2+ H in hydrochloric acid + Replace, H + Entering the resin to form RH exchange groups, M 2+ It is washed away and the regeneration process is completed.

[0030] This invention provides a resin zinc removal device that eliminates the fluidized bed and pump in existing resin zinc removal systems, replacing the moving bed with a fixed bed. It integrates the functions of the moving bed, pump, and fluidized bed into one unit, completing the entire process of resin pretreatment, adsorption, regeneration, and washing within the fixed bed. This shortens the process flow of the original dense moving bed resin zinc removal, reduces the equipment footprint, simplifies the operator's workflow, and improves the equipment's integration level. When using this device for zinc removal, resin regeneration eliminates the need for repeated blowing, reducing regeneration time by 16%, increasing resin utilization by 15%, improving operational efficiency by 30%, and increasing zinc removal capacity by 25%. Furthermore, this device eliminates the need for compressed air to lift the liquid, saving compressed air energy.

[0031] The foregoing description describes some exemplary embodiments of this utility model. It is understood that the above embodiments are only used to explain this utility model and do not constitute a limitation on the scope of protection of this utility model. The features in these embodiments can be recombine in a suitable manner, and the resulting solutions are still within the scope of protection claimed by this utility model. Based on the above embodiments, all other embodiments obtained by those skilled in the art without inventive effort, that is, all modifications, equivalent substitutions, and improvements made within the spirit and principles of this application, fall within the scope of protection claimed by this utility model.

Claims

1. A resin zinc removal device, characterized in that, It includes a conical bottom (3), a cylindrical body (5), an upper end cap (7), a liquid outlet pipe (9), a liquid outlet bend pipe (10), and a liquid collection tray (11); the bottom of the cylindrical body (5) is connected to the conical bottom (3), the lower part of the cylindrical body (5) is provided with a liquid inlet (6), and the top of the cylindrical body (5) is connected to the upper end cap (7); a sieve plate (4) is provided between the conical bottom (3) and the cylindrical body (5), and the sieve plate (4) is provided with several small holes, the diameter of which is smaller than the diameter of the resin; the bottom of the conical bottom (3) is provided with a residual liquid outlet (2); the upper end cap (7) is provided with a resin inlet (8) and multiple liquid outlet pipes (9); the liquid outlet pipes (9) are connected to the liquid collection tray (11). One end of the liquid bend (10) and the other end of the liquid outlet bend (10) are set in the liquid collection tray (11). The bottom of the liquid collection tray (11) is provided with a liquid collection tray outlet (12). The pipe connected to the residual liquid outlet (2) is provided with a residual liquid venting valve (13). The pipe connected to the liquid inlet (6) is provided with two branch pipes. One branch pipe is provided with an inlet valve (14) and a check valve (15), and the other branch pipe is provided with a resin venting valve (16). The pipe connected to the liquid collection tray outlet (12) is provided with two branch pipes. One branch pipe is provided with a drain valve (17), and the other branch pipe is provided with a washing valve (18).

2. The resin zinc removal device according to claim 1, characterized in that, The cone bottom (3) is set on the base (1).

3. The resin zinc removal device according to claim 1, characterized in that, The cone bottom (3), the cylinder (5), and the upper end cap (7) are connected by cylinder gaskets and bolts.

4. The resin zinc removal device according to claim 1, characterized in that, The outlet pipe (9) is provided with a baffle plate, and the baffle plate is provided with several small holes, the diameter of which is smaller than the diameter of the resin.

5. The resin zinc removal device according to claim 1, characterized in that, A platform is provided around the upper end cap (7), and the liquid collection tray (11) is disposed on the platform.

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