Electrodialysis equipment for removing silicon in salt lake brine

Abstract

The utility model relates to the technical field of salt lake brine treatment, in particular to electrodialysis equipment for removing silicon in salt lake brine, which comprises an electrodialysis equipment main body, a positive plate is mounted on the left side of the inner wall of the electrodialysis equipment main body, and a negative plate is mounted on the right side of the inner wall of the electrodialysis equipment main body. The salt lake brine treatment device is compact in structure, easy and convenient to operate and suitable for salt lake brine treatment projects of various scales, the advantages of the electrodialysis technology are combined, the salt lake brine treatment efficiency is improved through the selective permeability of the ion exchange membranes, and the salt lake brine treatment efficiency is improved. According to the present invention, the effective silicon ion removal is achieved, the efficient silicon removal use of the secondary adsorption on the fresh water and the concentrated water after the silicon ion removal through the electrodialysis can be conveniently performed, the regular cleaning of the electrodialysis equipment main body can be timely performed according to the operation state and the pollution condition of the equipment, the damage to the equipment is avoided, the silicon removal efficiency is improved, and the practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of salt lake brine treatment, in particular to an electrodialysis device for removing silicon in salt lake brine. Background Technique

[0002] The electrodialysis device for removing silicon in salt lake brine is a device specially designed to remove silicon elements from salt lake brine. This electrodialysis device separates and removes silicon ions in salt lake brine by using the principle of ion migration under the action of an electric field and a selective ion exchange membrane.

[0003] In the prior art, the electrodialysis device for removing silicon in salt lake brine is not convenient for the efficient silicon removal by secondary adsorption of the fresh water and concentrated water after the electrodialysis removes silicon ions, nor is it convenient to regularly clean the main body of the electrodialysis device in a timely manner according to the operating state and pollution situation of the device, so that the silicon removal efficiency cannot be improved and regular cleaning cannot be carried out to avoid device damage.

[0004] Therefore, it is necessary to design an electrodialysis device for removing silicon in salt lake brine to solve the problems mentioned above. Content of the Utility Model

[0005] The purpose of the utility model is to provide an electrodialysis device for removing silicon in salt lake brine, so as to improve the silicon removal efficiency of the electrodialysis device for removing silicon in salt lake brine and be easy to regularly clean to avoid device damage, thereby solving the problems mentioned in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] An electrodialysis device for removing silicon from salt lake brine comprises an electrodialysis device body, a positive electrode plate is installed on the left side of the inner wall of the electrodialysis device body, a negative electrode plate is installed on the right side of the inner wall of the electrodialysis device body, an anion exchange membrane and a cation exchange membrane are installed in sequence inside the electrodialysis device body and between the positive electrode plate and the negative electrode plate, the inside of the electrodialysis device body is separated into a fresh water chamber, a concentrated water chamber and an extreme water chamber by the anion exchange membrane and the cation exchange membrane in sequence, the inner walls of the fresh water chamber and the concentrated water chamber both pass through the upper edge of the back side of the electrodialysis device body and a flushing liquid inlet pipe is installed, the inner walls of the fresh water chamber and the concentrated water chamber both pass through the lower edge of the back side of the electrodialysis device body and a liquid inlet pipe is installed, the back sides of the inner walls of the fresh water chamber and the concentrated water chamber are installed with pressure sensors, the inner walls of the fresh water chamber and the concentrated water chamber both pass through the bottom of the electrodialysis device body and a sewage valve pipe is installed, The right side of the electrodialysis equipment body is fixedly installed with a first filter box and a second filter box in sequence from front to back, a first liquid pump is installed on the top of the first filter box, the top of the first liquid pump is connected to the fresh water chamber and a first liquid extraction pipe is installed, the bottom of the first liquid pump is connected to the first filter box and a first liquid supply pipe is installed, a first filter plate is embedded in the top of the first filter box, a fresh water discharge pipe is installed on the right side of the first filter box, a second liquid pump is installed on the top of the second filter box, the top of the second liquid pump is connected to the concentrated water chamber and a second liquid extraction pipe is installed, the bottom of the second liquid pump is connected to the second filter box and a second liquid supply pipe is installed, a second filter plate is embedded in the top of the second filter box, a concentrated water discharge pipe is installed on the right side of the second filter box, and a controller panel is embedded on the left side of the front side of the electrodialysis equipment body.

[0008] As a preferred solution of the utility model, both sides of the bottom of the electrodialysis equipment body are connected to the interior of the polar water chamber and are equipped with polar liquid inlet pipes, and both sides of the top of the electrodialysis equipment body are connected to the interior of the polar water chamber and are equipped with polar liquid outlet pipes.

[0009] As a preferred solution of the utility model, the first filter box and the second filter box are both provided with a U-shaped holder whose size matches the first filter plate and the second filter plate.

[0010] As a preferred solution of the utility model, handles are installed on the top of the first filter plate and the second filter plate, and filter nets are embedded and installed on both sides of the first filter plate and the second filter plate, and silicone resin removal filter material is filled between the filter nets on both sides of the first filter plate and the second filter plate.

[0011] As a preferred solution of the utility model, a plurality of anion exchange membranes and cation exchange membranes are arranged in an alternating manner.

[0012] As a preferred solution of the present utility model, liquid flow meters are embedded at one ends of the first liquid suction pipe and the second liquid suction pipe close to the main body of the electrodialysis device.

[0013] Beneficial effects: Aiming at the problems that the electrodialysis device for removing silicon from salt lake brine in the prior art cannot improve the silicon removal efficiency and cannot be regularly cleaned to avoid equipment damage, in the present utility model, anion exchange membranes and cation exchange membranes are alternately arranged inside the main body of the electrodialysis device to form a plurality of fresh water chambers and concentrated water chambers. Based on the principle of ion migration under the action of the electric field of the positive and negative plates in the main body of the electrodialysis device, silicon ions migrate towards the cation exchange membrane under the action of the electric field and are intercepted in the concentrated water chamber, thereby realizing the separation and removal of silicon ions in salt lake brine by using a selective ion exchange membrane. By providing a first filter tank and a second filter tank with detachable first filter plates and second filter plates, driven by a first liquid pump and a second liquid pump, efficient silicon removal using secondary adsorption of the fresh water and concentrated water from which silicon ions are removed by electrodialysis is carried out. And by providing a pressure sensor and a liquid flow meter, it is convenient to provide stable liquid circulation conditions and monitor the operation status of the equipment. The overall structure is compact. And by providing a flushing liquid inlet pipe and a sewage valve pipe, it is convenient to regularly clean the main body of the electrodialysis device in a timely manner according to the operation status and pollution situation of the equipment, avoid damage to the equipment, improve and reduce the silicon removal efficiency. The operation is simple, and it is applicable to salt lake brine treatment projects of various scales. Combining the advantages of electrodialysis technology, through the selective permeability of the ion exchange membrane, effective removal of silicon ions is achieved, and it is convenient to carry out efficient silicon removal using secondary adsorption of the fresh water and concentrated water from which silicon ions are removed by electrodialysis. It can be regularly cleaned in a timely manner according to the operation status and pollution situation of the equipment, avoid damage to the equipment, improve and reduce the silicon removal efficiency, and is very practical. Description of the Drawings

[0014] Figure 1 It is an overall three-dimensional view of an electrodialysis device for removing silicon from salt lake brine according to the present utility model;

[0015] Figure 2 It is an overall front view of an electrodialysis device for removing silicon from salt lake brine according to the present utility model;

[0016] Figure 3 It is an overall front view internal structure schematic diagram of an electrodialysis device for removing silicon from salt lake brine according to the present utility model;

[0017] Figure 4 It is an overall top view of an electrodialysis device for removing silicon from salt lake brine according to the present utility model.

[0018] In the figure: 1. Main body of electrodialysis equipment; 101. Fresh water chamber; 102. Concentrated water chamber; 103. Electrode water chamber; 1031. Electrode liquid inlet pipe; 1032. Electrode liquid outlet pipe; 2. First filter tank; 201. First filter plate; 202. Fresh water discharge pipe; 3. Second filter tank; 301. Second filter plate; 302. Concentrated water discharge pipe; 4. Positive electrode plate; 5. Negative electrode plate; 6. Anion exchange membrane; 7. Cation exchange membrane; 8. Liquid inlet pipe; 9. Flushing liquid inlet pipe; 10. Pressure sensor; 11. Sewage valve pipe; 12. First liquid pump; 121. First liquid suction pipe; 122. First liquid supply pipe; 13. Second liquid pump; 131. Second liquid suction pipe; 132. Second liquid supply pipe; 14. Liquid flowmeter; 15. Controller panel. Detailed implementation manners

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0020] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant. Several embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0021] It should be noted that when an element is referred to as being "fixedly installed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used in the description of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0023] Please refer to Figures 1-4 , the present invention provides a technical solution:

[0024] An electrodialysis device for removing silicon from salt lake brine, comprising an electrodialysis device main body 1. A positive electrode plate 4 is installed on the left side of the inner wall of the electrodialysis device main body 1, and a negative electrode plate 5 is installed on the right side of the inner wall of the electrodialysis device main body 1. An anion exchange membrane 6 and a cation exchange membrane 7 are successively installed inside the electrodialysis device main body 1 and between the positive electrode plate 4 and the negative electrode plate 5. The inside of the electrodialysis device main body 1 is successively separated into a fresh water chamber 101, a concentrated water chamber 102 and an electrode water chamber 103 by the anion exchange membrane 6 and the cation exchange membrane 7. Both sides of the bottom of the electrodialysis device main body 1 are connected to the inside of the electrode water chamber 103 through penetration, and an electrode liquid inlet pipe 1031 is installed. Both sides of the top of the electrodialysis device main body 1 are connected to the inside of the electrode water chamber 103 through penetration, and an electrode liquid outlet pipe 1032 is installed. A plurality of anion exchange membranes 6 and cation exchange membranes 7 are arranged in an alternating manner. By installing alternately arranged anion exchange membranes 7 and cation exchange membranes 8 inside the electrodialysis device main body 1, a plurality of fresh water chambers 101 and concentrated water chambers 102 are formed. And based on the principle of ion migration under the electric field action of the positive electrode plate 4 and the negative electrode plate 5 inside the electrodialysis device main body 1, silicon ions migrate towards the cation exchange membrane 8 under the action of the electric field and are intercepted in the concentrated water chamber 102, thereby realizing the separation and removal of silicon ions in the salt lake brine by using a selective ion exchange membrane.

[0025] Specifically, a first filter tank 2 and a second filter tank 3 are fixedly installed on the right side of the electrodialysis equipment main body 1 in sequence from front to back. A first liquid pump 12 is installed on the top of the first filter tank 2. The top end of the first liquid pump 12 is connected to the inside of the fresh water chamber 101 through a first liquid extraction pipe 121, and the bottom end of the first liquid pump 12 is connected to the inside of the first filter tank 2 through a first liquid supply pipe 122. A first filter plate 201 is embedded and clamped on the top of the first filter tank 2. A fresh water discharge pipe 202 is installed on the right side of the first filter tank 2. A second liquid pump 13 is installed on the top of the second filter tank 3. The top end of the second liquid pump 13 is connected to the inside of the concentrated water chamber 102 through a second liquid extraction pipe 131, and the bottom end of the second liquid pump 13 is connected to the inside of the second filter tank 3 through a second liquid supply pipe 132. Pressure sensors 10 are installed on the back inner walls of both the fresh water chamber 101 and the concentrated water chamber 102. Liquid flow meters 14 are embedded and installed at one ends of the first liquid extraction pipe 121 and the second liquid extraction pipe 131 close to the electrodialysis equipment main body 1. A second filter plate 301 is embedded and clamped on the top of the second filter tank 3. A concentrated water discharge pipe 302 is installed on the right side of the second filter tank 3. A controller panel 15 is embedded and installed on the left side of the front of the electrodialysis equipment main body 1. U-shaped card seats that match the sizes of the first filter plate 201 and the second filter plate 301 are arranged inside both the first filter tank 2 and the second filter tank 3. Handles are installed on the tops of both the first filter plate 201 and the second filter plate 301, and filter nets are embedded and installed on both sides of the first filter plate 201 and the second filter plate 301. Desilication resin filter materials are filled between the filter nets on both sides of the first filter plate 201 and the second filter plate 301. By setting the first filter tank 2 and the second filter tank 3 with detachable first filter plate 201 and second filter plate 201, under the drive of the first liquid pump 12 and the second liquid pump 13, the fresh water and concentrated water for removing silicon ions by electrodialysis are used for high-efficiency desilication with secondary adsorption. And by setting the pressure sensors 10 in cooperation with the liquid flow meters 14, it is convenient to provide stable liquid circulation conditions and monitor the operation status of the equipment.

[0026] Preferably, flushing liquid inlet pipes 9 are installed through the upper edges of the backs of the electrodialysis equipment main body 1 on the inner walls of both the fresh water chamber 101 and the concentrated water chamber 102. Liquid inlet pipes 8 are installed through the lower edges of the backs of the electrodialysis equipment main body 1 on the inner walls of both the fresh water chamber 101 and the concentrated water chamber 102. Sewage valve pipes 11 are installed through the bottoms of the electrodialysis equipment main body 1 on the inner walls of both the fresh water chamber 101 and the concentrated water chamber 102. By setting the flushing liquid inlet pipes 9 and the sewage valve pipes 11, it is convenient to regularly clean the electrodialysis equipment main body 1 in a timely manner according to the operation status and pollution situation of the equipment, avoid damaging the equipment, and improve and reduce the desilication efficiency.

[0027] In summary, the structure of the present utility model is compact and the operation is simple. It is applicable to salt lake brine treatment projects of various scales. Combining the advantages of electrodialysis technology, through the selective permeability of ion exchange membranes, the effective removal of silicon ions is achieved, and it is convenient for the efficient silicon removal by secondary adsorption of the fresh water and concentrated water from which silicon ions are removed by electrodialysis. According to the operating status and pollution conditions of the equipment, the main body of the electrodialysis equipment can be regularly cleaned in a timely manner to avoid damage to the equipment, improve and reduce the silicon removal efficiency, which is very practical.

[0028] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An electrodialysis device for removing silicon from salt lake brine, comprising an electrodialysis device main body (1), characterized in that : On the left side of the inner wall of the electrodialysis equipment main body (1), a positive electrode plate (4) is installed. On the right side of the inner wall of the electrodialysis equipment main body (1), a negative electrode plate (5) is installed. Inside the electrodialysis equipment main body (1) and between the positive electrode plate (4) and the negative electrode plate (5), an anion exchange membrane (6) and a cation exchange membrane (7) are installed in sequence. Inside the electrodialysis equipment main body (1), a fresh water chamber (101), a concentrated water chamber (102), and an electrode water chamber (103) are separated in sequence by the anion exchange membrane (6) and the cation exchange membrane (7). The inner walls of the fresh water chamber (101) and the concentrated water chamber (102) are both penetrated through the upper edge of the back surface of the electrodialysis equipment main body (1) and provided with washing liquid inlet pipes (9). The inner walls of the fresh water chamber (101) and the concentrated water chamber (102) are both penetrated through the lower edge of the back surface of the electrodialysis equipment main body (1) and provided with liquid inlet pipes (8). Pressure sensors (10) are installed on the back surfaces of the inner walls of the fresh water chamber (101) and the concentrated water chamber (102). The inner walls of the fresh water chamber (101) and the concentrated water chamber (102) are both penetrated through the bottom of the electrodialysis equipment main body (1) and provided with sewage valve pipes (11). On the right side of the electrodialysis equipment main body (1), a first filter box (2) and a second filter box (3) are fixedly installed in sequence from front to back. A first liquid pump (12) is installed on the top of the first filter box (2). The top end of the first liquid pump (12) is connected to the inside of the fresh water chamber (101) through a first liquid extraction pipe (121). The bottom end of the first liquid pump (12) is connected to the inside of the first filter box (2) through a first liquid supply pipe (122). A first filter plate (201) is embedded and clamped on the top of the first filter box (2). A fresh water discharge pipe (202) is installed on the right side of the first filter box (2). A second liquid pump (13) is installed on the top of the second filter box (3). The top end of the second liquid pump (13) is connected to the inside of the concentrated water chamber (102) through a second liquid extraction pipe (131). The bottom end of the second liquid pump (13) is connected to the inside of the second filter box (3) through a second liquid supply pipe (132). A second filter plate (301) is embedded and clamped on the top of the second filter box (3). A concentrated water discharge pipe (302) is installed on the right side of the second filter box (3). A controller panel (15) is embedded and installed on the left side of the front surface of the electrodialysis equipment main body (1).

2. The electrodialysis device for removing silicon from salt lake brine according to claim 1, characterized in that: On both sides of the bottom of the electrodialysis equipment main body (1), electrode liquid inlet pipes (1031) are connected to the inside of the electrode water chamber (103). And on both sides of the top of the electrodialysis equipment main body (1), electrode liquid outlet pipes (1032) are connected to the inside of the electrode water chamber (103).

3. The electrodialysis device for silicon removal in salt lake brine according to claim 1, wherein: U-shaped card seats with dimensions matching the first filter plate (201) and the second filter plate (301) are provided inside both the first filter box (2) and the second filter box (3).

4. An electrodialysis device for removing silicon from salt lake brine according to claim 3, characterized in that: Carrying handles are installed on the tops of the first filter plate (201) and the second filter plate (301), and filter nets are embedded on both sides of the first filter plate (201) and the second filter plate (301). A silicon-removing resin filter material is filled between the filter nets on both sides of the first filter plate (201) and the second filter plate (301).

5. An electrodialysis device for removing silicon from salt lake brine according to claim 1, characterized in that: A plurality of anion exchange membranes (6) and cation exchange membranes (7) are arranged in an alternating distribution.

6. An electrodialysis device for removing silicon from salt lake brine according to claim 1, characterized in that: Liquid flow meters (14) are embedded at one ends of the first liquid extraction pipe (121) and the second liquid extraction pipe (131) close to the electrodialysis equipment main body (1).

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