Vanadium removal device for sodium aluminate solution

Abstract

The utility model discloses a vanadium removal device for a sodium aluminate solution, which belongs to the technical field of vanadium removal, and comprises a dissolving tank, a solution pump, a settling tank and a stirring component, the stirring component is arranged in the dissolving tank, the top of the dissolving tank is respectively connected with a feeding pipe for supplying the sodium aluminate solution and a feeding pipe for feeding dry vanadium, a bottom outlet of the dissolving tank is connected with a settling tank through a conveying pipe, and a solution pump is mounted on the conveying pipe. The device has the beneficial effects that a sodium aluminate solution to be treated is fed into the dissolving tank and can be stirred by the stirring assembly after being added with dry vanadium, and then the fully stirred solution can be fed into the settling tank under the action of the solution pump to crystallize and settle the vanadium, so that the vanadium is removed, and meanwhile, the quality of the sodium aluminate solution is improved. Dry vanadium can be added into the dissolving tank for dissolving and mixing, so that the particle size and quality of vanadium ions in the solution are improved, vanadium crystals can be better separated out by the settling tank, and the vanadium removal effect of the device on the sodium aluminate solution is further improved.

Description

Technical Field

[0001] This utility model relates to the field of vanadium removal technology, and more specifically, to a vanadium removal device for sodium aluminate solution. Background Technology

[0002] In the production of alumina, sodium aluminate solution is required as a raw material. Sodium aluminate solution often contains various impurities. Vanadium ions can be removed by using appropriate vanadium removal devices. Currently, vanadium ions can be removed by crystal precipitation of sodium aluminate solution. Based on the working principle of material precipitation, vanadium ions can settle after crystallization, thus easily being removed from sodium aluminate solution.

[0003] In existing technologies, the removal of vanadium ions is affected by material flow rate and precipitation time, resulting in insufficient precipitation and high vanadium ion content in the filtrate. There is a lack of rapid and stable vanadium removal structures using sodium aluminate solutions, and both the safety and practicality of these methods need improvement. Furthermore, a utility model patent with publication number CN221358561U discloses a titanium tetrachloride vanadium removal and purification device using mineral oil. This device includes a base plate with an electric heating jacket mounted on the left side of the upper surface. A round-bottom flask is placed inside the heating jacket, and a thermometer is connected to the flask. A condenser tube is also connected to one end of the flask, and the other end of the condenser tube is connected to one end of a tail pipe. The other end of the tail pipe is connected to a receiving bottle, which is placed on the base plate. The device also includes a fixing frame fixed to the right side of the heating jacket, with a movable frame connected to it. This complex structure is unsuitable for alumina production workshops and cannot effectively remove vanadium ions from sodium aluminate solutions, thus requiring further improvement in both safety and practicality. Utility Model Content

[0004] To overcome the problems in existing technologies for vanadium ion removal, such as insufficient precipitation and high vanadium ion content in the filtrate due to the influence of material flow rate and precipitation time, the lack of a fast and stable vanadium removal structure for sodium aluminate solution, and the need to improve its safety and practicality, this utility model provides a vanadium removal device for sodium aluminate solution, including a dissolving tank, a solution pump, a settling tank, and a stirring assembly. The stirring assembly is located inside the dissolving tank. The top of the dissolving tank is connected to a feed pipe for supplying sodium aluminate solution and a feed pipe for adding dry vanadium. The bottom outlet of the dissolving tank is connected to the settling tank through a conveying pipe, and the solution pump is installed on the conveying pipe.

[0005] The sodium aluminate solution to be treated is fed into a dissolving tank. After adding dry vanadium, the solution is stirred by a stirring component. Then, under the action of a solution pump, the thoroughly stirred solution is sent to a settling tank for vanadium crystallization and sedimentation, thereby removing vanadium. At the same time, dry vanadium can be added to the dissolving tank to dissolve and mix, thereby increasing the particle size and quality of vanadium ions in the solution. This facilitates better precipitation of vanadium crystals in the settling tank and further improves the vanadium removal efficiency of the device for sodium aluminate solution.

[0006] Preferably, the stirring assembly includes a stirring motor and a stirring paddle. The stirring motor is installed at the middle of the top of the dissolving tank, and the movable end of the stirring motor passes through the dissolving tank and is connected to the stirring paddle. The bottom of the stirring paddle is rotatably connected to the bottom of the inner side of the dissolving tank.

[0007] Preferably, the top of the dissolving tank is connected to a feed pipe and a feeding pipe at two positions on either side of the stirring motor, and a feed valve is installed on the feed pipe.

[0008] Preferably, a detachable scraper is installed on the stirring paddle near the inner wall of the dissolving tank, and the scraper is in close contact with the inner wall of the dissolving tank and is provided with bristles.

[0009] Preferably, the input end of the solution pump is fixedly connected to the bottom of the side wall of the dissolving tank, and the output end of the solution pump is fixedly connected to the top of the settling tank through a conveying pipe.

[0010] Preferably, the sidewall of the settling tank is provided with a drain pipe, and the bottom of the settling tank is provided with a crystallization precipitate pipe.

[0011] Preferably, a monitoring box is installed on the conveying pipe, and a pressure monitoring component is installed on the monitoring box. The pressure monitoring component includes an alarm and a pressure detector. The pressure detector is installed on the conveying pipe, and the detection end is located on the inner wall of the conveying pipe. The alarm is installed on the top of the monitoring box and is electrically connected to the pressure detector.

[0012] By installing a monitoring box and pressure monitoring components on the conveying pipe, the pipeline pressure can be monitored under the action of a pressure detector, and an alarm can be triggered in case of abnormality, so as to remind the staff to deal with it in time.

[0013] Preferably, a display is installed in the center of the front of the monitoring box, and the display is electrically connected to the pressure detector.

[0014] Preferably, the material conveying pipe is provided with a reinforcing sleeve on the outside and a corrosion-resistant inner tube on the inside.

[0015] By installing a reinforcing sleeve on the outside of the conveying pipe, the protection of the pipe can be improved, making it less prone to damage and increasing its strength. At the same time, the installation of a corrosion-resistant inner tube inside the conveying pipe can improve the corrosion resistance of the pipe, thereby extending its service life.

[0016] Preferably, a support base is installed at the bottom of the settling tank.

[0017] The settling tank can be raised by the support base, which makes it easier for crystals to precipitate.

[0018] Beneficial effects:

[0019] The beneficial effects of adopting the technical solution of this utility model are as follows:

[0020] (1) The sodium aluminate solution to be treated is sent into the dissolving tank. After adding dry vanadium, it can be stirred by the stirring component. Then, under the action of the solution pump, the fully stirred solution can be sent into the settling tank for vanadium crystallization and settling, thereby removing vanadium. At the same time, dry vanadium can be added to the dissolving tank to dissolve and mix, thereby increasing the particle size and quality of vanadium ions in the solution. This makes it easier for vanadium crystals to precipitate better in the settling tank, further improving the vanadium removal effect of the device on sodium aluminate solution.

[0021] (2) By installing a monitoring box and pressure monitoring components on the conveying pipe, the pipeline pressure can be monitored under the action of a pressure detector, and an alarm can be triggered when there is an abnormality, so as to remind the staff to deal with it in time.

[0022] (3) By installing a reinforcing sleeve on the outside of the conveying pipe, the protection of the pipe can be improved, making it less prone to damage and increasing its strength. At the same time, the corrosion-resistant inner tube inside the conveying pipe can improve the corrosion resistance of the pipe, thereby increasing its service life. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the overall structure of the vanadium removal device for sodium aluminate solution according to this utility model;

[0025] Figure 2 This is a schematic diagram of the connection structure of the vanadium removal device for sodium aluminate solution according to this utility model.

[0026] Figure 3This is a schematic diagram of the internal structure of the feed pipe in the vanadium removal device for sodium aluminate solution of this utility model.

[0027] In the diagram: 1. Dissolving tank; 2. Solution pump; 3. Settling tank; 4. Feed pipe; 5. Feeding pipe; 6. Stirring assembly; 7. Conveying pipe; 8. Monitoring box; 9. Display; 10. Alarm; 11. Drain pipe; 12. Crystallization pipe; 13. Stirring motor; 14. Stirring paddle; 15. Pressure gauge; 16. Feed valve; 17. Reinforcing sleeve; 18. Corrosion-resistant inner tube; 19. Scraper; 20. Support base. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0029] This embodiment involves feeding the sodium aluminate solution to be treated into a dissolving tank. After adding dry vanadium, the solution is stirred by a stirring assembly. Then, under the action of a solution pump, the thoroughly stirred solution is sent to a settling tank for vanadium crystallization and precipitation, thereby removing vanadium. Simultaneously, dry vanadium can be added to the dissolving tank to dissolve and mix, increasing the particle size and mass of vanadium ions in the solution. This facilitates better precipitation of vanadium crystals in the settling tank, further improving the vanadium removal efficiency of the device for sodium aluminate solutions. Specific implementation details are as follows:

[0030] like Figures 1 to 3As shown, a vanadium removal device for sodium aluminate solution includes a dissolving tank 1, a solution pump 2, a settling tank 3, and a stirring assembly 6. The stirring assembly 6 is disposed inside the dissolving tank 1. The top of the dissolving tank 1 is connected to a feed pipe 4 for supplying sodium aluminate solution and a feed pipe 5 for adding dry vanadium. The bottom outlet of the dissolving tank 1 is connected to the settling tank 3 via a conveying pipe 7, on which the solution pump 2 is installed. The sodium aluminate solution to be treated is fed into the dissolving tank 1 through the feed pipe 4. After adding dry vanadium through the feed pipe 5, the stirring assembly 6 stirs the solution. Then, under the action of the solution pump 2, the thoroughly stirred solution is sent to the settling tank 3 for vanadium crystallization and sedimentation, thereby removing vanadium. At the same time, the addition of dry vanadium to the dissolving tank 1 for dissolution and mixing can improve the particle size and quality of vanadium ions in the solution, facilitating better precipitation of vanadium crystals in the settling tank 3, and further improving the vanadium removal effect of the device on sodium aluminate solution.

[0031] The stirring assembly 6 includes a stirring motor 13 and a stirring paddle 14. The stirring motor 13 is installed at the center of the top of the dissolving tank 1. The movable end of the stirring motor 13 passes through the dissolving tank 1 and is connected to the stirring paddle 14. The bottom of the stirring paddle 14 is rotatably connected to the bottom of the inner side of the dissolving tank 1. By driving the stirring paddle 14 with the stirring motor 13, the sodium aluminate solution and dry vanadium can be thoroughly stirred and mixed in the dissolving tank 1, thereby facilitating the subsequent vanadium removal from the sodium aluminate solution.

[0032] The top of the dissolving tank 1 is connected to the feed pipe 4 and the feeding pipe 5 on both sides of the stirring motor 13. The feed pipe 4 is equipped with a feed valve 16. By controlling the feed pipe 4 through the feed valve 16, the amount of sodium aluminate solution entering the dissolving tank 1 can be controlled.

[0033] A detachable scraper 19 is installed on the stirring paddle 14 near the inner wall of the dissolving tank 1. The scraper 19 is in close contact with the inner wall of the dissolving tank 1 and is equipped with bristles. The scraper 19 can rotate with the stirring paddle 14 to remove solution residue in the dissolving tank 1 and improve the cleaning effect.

[0034] The input end of solution pump 2 is fixedly connected to the bottom of the side wall of dissolving tank 1, and the output end of solution pump 2 is fixedly connected to the top of settling tank 3 through conveying pipe 7. Solution pump 2 can quickly extract the mixed solution from dissolving tank 1 to settling tank 3 for processing, thereby improving work efficiency.

[0035] The settling tank 3 is equipped with a drain pipe 11 on its side wall and a crystallization precipitate pipe 12 at its bottom. Sodium aluminate solution can be discharged during the settling process through the drain pipe 11, and vanadium impurities in the sodium aluminate solution can be discharged through the crystallization precipitate pipe 12.

[0036] A monitoring box 8 is installed on the conveying pipe 7, and a pressure monitoring component is installed on the monitoring box 8. The pressure monitoring component includes an alarm 10 and a pressure detector 15. The pressure detector 15 is installed on the conveying pipe 7, and its detection end is located on the inner wall of the conveying pipe 7. The alarm 10 is installed on the top of the monitoring box 8 and is electrically connected to the pressure detector 15. Through the monitoring box 8 and the pressure monitoring component installed on the conveying pipe 7, the pipeline pressure can be monitored under the action of the pressure detector 15. In case of abnormality, the alarm 10 will sound an alarm to facilitate timely handling by the staff.

[0037] A display 9 is installed in the center of the front of the monitoring box 8, and the display 9 is electrically connected to the pressure detector 15. The display 9 can display the water pressure data inside the pipeline, which is convenient for staff to view and control.

[0038] The conveying pipe 7 is provided with a reinforcing sleeve 17 on the outside and a corrosion-resistant inner tube 18 on the inside. The reinforcing sleeve 17 on the outside of the conveying pipe 7 can improve the protection of the pipe, making it less prone to damage and increasing its strength. At the same time, the corrosion-resistant inner tube 18 on the inside of the conveying pipe 7 can improve the corrosion resistance of the pipe, thereby increasing its service life.

[0039] A support base 20 is installed at the bottom of the settling tank 3. The support base 20 can raise the settling tank 3, thereby facilitating better crystal precipitation.

[0040] Working principle: The sodium aluminate solution to be treated is fed into the dissolving tank. After adding dry vanadium, the solution is stirred by a stirring component. Then, under the action of a solution pump, the thoroughly stirred solution is sent to the settling tank for vanadium crystallization and sedimentation, thereby removing vanadium. At the same time, dry vanadium can be added to the dissolving tank to dissolve and mix, increasing the particle size and quality of vanadium ions in the solution, which facilitates better precipitation of vanadium crystals in the settling tank, further improving the vanadium removal effect of the device on sodium aluminate solution. The monitoring box and pressure monitoring component installed on the conveying pipe can monitor the pipeline pressure under the action of a pressure detector. An alarm can be triggered in case of abnormality, which can help remind the staff to deal with it in time. The reinforcing sleeve installed on the outside of the conveying pipe can improve the protection of the pipeline, making it less prone to damage and increasing its strength. At the same time, the corrosion-resistant inner tube installed inside the conveying pipe can improve the corrosion resistance of the pipeline, thereby increasing its service life.

[0041] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A vanadium removal device for sodium aluminate solution, characterized in that, The system includes a dissolving tank (1), a solution pump (2), a settling tank (3), and a stirring assembly (6). The stirring assembly (6) is located inside the dissolving tank (1). The top of the dissolving tank (1) is connected to a feed pipe (4) for supplying sodium aluminate solution and a feed pipe (5) for adding dry vanadium. The bottom outlet of the dissolving tank (1) is connected to the settling tank (3) through a conveying pipe (7). The solution pump (2) is installed on the conveying pipe (7).

2. The vanadium removal device for sodium aluminate solution according to claim 1, characterized in that, The stirring assembly (6) includes a stirring motor (13) and a stirring paddle (14). The stirring motor (13) is installed at the middle of the top of the dissolving tank (1). The movable end of the stirring motor (13) passes through the dissolving tank (1) and is connected to the stirring paddle (14). The bottom of the stirring paddle (14) is rotatably connected to the bottom of the inner side of the dissolving tank (1).

3. The vanadium removal device for sodium aluminate solution according to claim 2, characterized in that, The top of the dissolving tank (1) is connected to the feed pipe (4) and the feeding pipe (5) on both sides of the stirring motor (13), and the feed pipe (4) is equipped with a feed valve (16).

4. A vanadium removal device for sodium aluminate solution according to claim 2, characterized in that, The stirring paddle (14) is equipped with a detachable scraper (19) near the inner wall of the dissolving tank (1). The scraper (19) is in close contact with the inner wall of the dissolving tank (1) and is provided with bristles.

5. A vanadium removal device for sodium aluminate solution according to claim 1, characterized in that, The input end of the solution pump (2) is fixedly connected to the bottom of the side wall of the dissolving tank (1), and the output end of the solution pump (2) is fixedly connected to the top of the settling tank (3) through the conveying pipe (7).

6. A vanadium removal device for sodium aluminate solution according to claim 1, characterized in that, The settling tank (3) is provided with a drain pipe (11) on its side wall and a crystallization precipitation pipe (12) at the bottom of the settling tank (3).

7. A vanadium removal device for sodium aluminate solution according to claim 1, characterized in that, A monitoring box (8) is installed on the feed pipe (7), and a pressure monitoring component is installed on the monitoring box (8). The pressure monitoring component includes an alarm (10) and a pressure detector (15). The pressure detector (15) is installed on the feed pipe (7), and the detection end is located on the inner wall of the feed pipe (7). The alarm (10) is installed on the top of the monitoring box (8) and is electrically connected to the pressure detector (15).

8. A vanadium removal device for sodium aluminate solution according to claim 7, characterized in that, A display (9) is installed in the center of the front of the monitoring box (8), and the display (9) is electrically connected to the pressure detector (15).

9. A vanadium removal device for sodium aluminate solution according to claim 1, characterized in that, The material conveying pipe (7) is provided with a reinforcing sleeve (17) on the outside and a corrosion-resistant inner tube (18) on the inside.

10. A vanadium removal device for sodium aluminate solution according to claim 1, characterized in that, The bottom of the settling tank (3) is equipped with a support base (20).

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