Salt separation device for zero discharge treatment of industrial wastewater

By combining a servo motor-driven stirring system with a rope-chain cooling plate, the problem of low heating and cooling efficiency in industrial wastewater desalination crystallization systems is solved, enabling rapid salt separation and reducing the adhesion of crystallized salt to the inner wall of the pipe, thus improving the service life of the equipment.

CN223509680UActive Publication Date: 2025-11-04CHANGZHI BOQI ENVIRONMENTAL PROTECTION TECH CO LTD
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Patent Information

Application Number
CN202422778987.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-14
Publication Date
2025-11-04
Estimated Expiration
2034-11-14

AI Technical Summary

Technical Problem

Existing industrial high-salt wastewater desalination crystallization systems are inefficient during heating and cooling processes, and the crystallized salt easily adheres to the inner wall of the pipes, affecting their service life.

Method used

A servo motor-driven stirring system, combined with a rope chain and cooling plates, enables rapid heating and cooling of industrial wastewater. The servo motor drives the drive rod and the rope chain to achieve thorough stirring and rapid temperature changes of the wastewater in the tank, preventing crystallized salts from adhering to the inner wall of the pipe.

Benefits of technology

It improves the efficiency of industrial wastewater desalination, reduces the adhesion of crystalline salts during pipeline transportation, and extends the service life of equipment.

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Abstract

The utility model relates to the technical field of industrial wastewater treatment, in particular to a salt separation device for zero discharge treatment of industrial wastewater, which comprises a tank body, a top cover is in bolted connection with the top of the tank body, a servo motor B for providing power is in bolted connection with the interior of the top cover, and a power output end of the servo motor B is in key connection with a support rod A; the supporting rod A is sleeved with a driving gear, the driving gear is in engaged connection with a driven gear, a supporting rod B is clamped to the inner side of the driven gear, a rope chain is wound around the outer side of the supporting rod B, and a box is fixed to the end, away from the supporting rod B, of the rope chain through a screw. Through the arrangement of the servo motor A, the servo motor B, the driving rod, the driving gear, the driven gear, the supporting rod A, the supporting rod B and the rope chain, the problems that when an existing salt separation and crystallization system for industrial high-salinity wastewater is used, the salt separation efficiency of the industrial wastewater is low, and crystallized salt is prone to being attached to the inner wall of a pipeline are solved.
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Description

Technical Field

[0001] This utility model relates to the field of industrial wastewater treatment technology, specifically to a salt separation device for zero-discharge treatment of industrial wastewater. Background Technology

[0002] Zero-discharge treatment of industrial wastewater refers to the process of highly concentrating and reusing salts and pollutants in industrial wastewater through a series of technical means, ultimately achieving a treatment process in which no waste liquid is discharged from the factory. Specifically, after industrial wastewater is reused, the salt content and pollutants are highly concentrated into wastewater, and these substances are discharged in solid form through methods such as concentration crystallization or pressure filtration, and sent to landfills or recycled as chemical raw materials.

[0003] Patent No. 202321137889.9 discloses a salt separation and crystallization system for industrial high-salt wastewater. The device heats the evaporator, causing water vapor to be discharged through the steam outlet pipe, forming a supersaturated solution inside. The solution is then pumped into the top of the crystallization tank by a lift pump to cool the crystallization tank, causing the supersaturated high-salt water to crystallize inside the crystallization tank.

[0004] However, existing industrial high-salt wastewater separation and crystallization systems involve sequentially placing the wastewater into an evaporator and a crystallizer for separation. Without external agitation during heating and cooling, the wastewater heats and cools slowly, impacting separation efficiency. Furthermore, after evaporation in the evaporator, the wastewater is transported to the crystallizer via pipes and pumps. During transport, crystallization occurs, and the resulting salts adhere to the pipes and pumps, making removal difficult and causing corrosion, thus affecting their lifespan. Therefore, a separate salt separation device for zero-discharge treatment of industrial wastewater needs to be developed. Utility Model Content

[0005] The main purpose of this utility model is to provide a salt separation device for zero-discharge treatment of industrial wastewater. This utility model solves the problems of low salt separation efficiency and easy adhesion of crystallized salt to the inner wall of pipes in the existing salt separation and crystallization system for high-salt industrial wastewater by setting up servo motor A, servo motor B, drive rod, drive gear, driven gear, support rod A, support rod B and rope chain.

[0006] The technical solution adopted by this utility model to solve its technical problem is a salt separation device for zero-discharge treatment of industrial wastewater, including a tank. A top cover is bolted to the top of the tank, and a servo motor B, providing power, is bolted inside the top cover. A support rod A is keyed to the power output end of the servo motor B, and a driving gear is sleeved on the outside of the support rod A. A driven gear is meshed with the outside of the driving gear, and the support rod B is snapped onto the inside of the driven gear. A rope chain is wound around the outside of the support rod B, and a box is screwed to the end of the rope chain away from the support rod B. A fixed pipe is inserted into the outside of the tank to allow industrial wastewater to enter the box. A servo motor A, which provides power, is bolted to the bottom of the tank. The power output end of the servo motor A is keyed to a drive rod that agitates the industrial wastewater inside the tank. An arc-shaped plate that scrapes the inner wall of the tank is screwed to the outside of the drive rod. An outer ring frame A and an outer ring frame B are bolted to the outside of the tank, with the outer ring frame A located on top of the outer ring frame B. A heating plate that heats the industrial wastewater inside the tank is screwed to the inside of the outer ring frame A. A cooling fin that cools the bottom of the tank is screwed to the inside of the outer ring frame B. A tank cover that cleans the inside of the tank is hinged to the outside of the tank. A branch pipe that allows the generated steam to be discharged is inserted into the top of the outside of the tank.

[0007] By adopting the above technical solution, when industrial wastewater is put into the tank through the fixed pipe, the heating plate in the outer ring frame A is heated by the external controller, so that the heat generated is transferred to the inside of the tank. The industrial wastewater is heated in the tank. Then the steam generated by heating the industrial wastewater is discharged through the branch pipe at the top of the tank, which increases the salt concentration of the industrial wastewater in the tank and makes it a supersaturated solution. Then the servo motor B in the top cover is converted into mechanical energy by the external controller. The servo motor B drives the support rod A to rotate. Then the driving gear outside the support rod A drives the support rod B in the driven gear to rotate. Then the rope chain outside the support rod B is unwound. Then the rope chain drives the tank to move to the bottom of the tank. At the same time, the cooling plate in the outer ring frame B comes into contact with the tank. The cooling plate is cooled by the external controller and cools the bottom of the tank, so that the industrial wastewater in the bottom of the tank is cooled and produces crystallized salt, which facilitates the salt separation treatment of industrial wastewater.

[0008] When industrial wastewater undergoes desalination, the servo motor A inside the tank is driven by an external controller to rotate the drive rod. The drive rod agitates the industrial wastewater inside the tank, ensuring it is fully heated and heated rapidly. Then, a rope chain moves the tank to the bottom for cooling. Simultaneously, the servo motor A inside the tank rotates the drive rod, rapidly cooling the solution inside the tank. This improves the efficiency of desalination of industrial wastewater and reduces the need for pipeline transport, preventing crystalline salts from adhering to the inner wall of the pipeline during transport.

[0009] When salt crystallizes inside the chamber, the servo motor A inside the chamber drives the drive rod to rotate, and the drive rod drives the arc plate to scrape against the inner wall of the chamber, preventing salt from crystallizing on the inner wall of the chamber.

[0010] Specifically, the outer side of the box is welded with an arc block, the inner wall of the tank is provided with an arc groove for the arc block to slide, and a rubber ring is fixed to the outer side of the box with screws to improve the sealing between the box and the tank.

[0011] By adopting the above technical solution, when the box moves inside the tank, the arc block outside the box slides in the arc groove opened inside the tank, which improves the stability of the box moving inside the tank. At the same time, the rubber ring outside the box is tightly connected to the inner wall of the tank, thereby improving the sealing between the box and the tank.

[0012] Specifically, the support rod B is fitted with a ring that limits the movement of the rope chain.

[0013] By adopting the above technical solution, when the rope chain is wound up outside the support rod B, the loop outside the support rod B limits the rope chain and prevents the rope chain from winding up messily outside the support rod B.

[0014] Specifically, the bottom of the tank is bolted with support legs to support the tank.

[0015] By adopting the above technical solution, the bolted legs at the bottom of the tank support the tank, improving its stability.

[0016] Specifically, a fan for cooling the heat dissipation chip is fixed to one side of the outer ring frame B with screws.

[0017] By adopting the above technical solution, the fan on the outer ring frame B accelerates the airflow speed at the hot end of the cooling chip, thereby facilitating heat dissipation of the cooling chip and improving its working efficiency.

[0018] Specifically, the input terminals of the fan, servo motor A, servo motor B, cooling chip, and heating plate are all electrically connected to the power supply terminal of an external power source.

[0019] By adopting the above technical solution and connecting to an external power source, the electrical equipment can operate normally.

[0020] The beneficial effects of this utility model are:

[0021] (1) The salt separation device for zero discharge treatment of industrial wastewater described in this utility model, when industrial wastewater is being treated for salt separation, the servo motor A inside the tank is driven by the external controller to rotate the drive rod, which drives the industrial wastewater inside the tank to stir, so that the industrial wastewater is fully heated and can be heated quickly. Then, the tank is moved to the bottom of the tank by the rope chain for cooling treatment. At the same time, the servo motor A inside the tank drives the drive rod to rotate, so that the solution inside the tank can be cooled quickly, thereby improving the efficiency of salt separation of industrial wastewater, while reducing pipeline transportation and avoiding the formation of crystallized salt adhering to the inner wall of the pipeline during pipeline transportation.

[0022] (2) The salt separation device for zero discharge treatment of industrial wastewater described in this utility model, when salt crystallizes inside the box, the servo motor A inside the box drives the drive rod to rotate, and the drive rod drives the arc plate to scrape the inner wall of the box, so as to prevent salt from crystallizing on the inner wall of the box. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Figure 1 This is a schematic diagram of the overall structure of a salt separation device for zero-discharge treatment of industrial wastewater according to the present invention.

[0025] Figure 2 This is a partial front view of the internal structure of a salt separation device for zero-discharge treatment of industrial wastewater according to the present invention.

[0026] Figure 3 This is a schematic diagram of the internal structure of a salt separation device for zero-discharge treatment of industrial wastewater according to the present invention.

[0027] Figure 4 This is a schematic diagram of the internal structure of the top cover of a salt separation device for zero-discharge treatment of industrial wastewater according to the present invention.

[0028] In the diagram: 1. Top cover; 2. Tank body; 3. Fixing pipe; 4. Rubber ring; 5. Fan; 6. Outer ring frame A; 7. Tank lid; 8. Outer ring frame B; 9. Support leg; 10. Rope chain; 11. Heating plate; 12. Arc block; 13. Box body; 14. Arc groove; 15. Cooling plate; 16. Servo motor A; 17. Arc plate; 18. Drive rod; 19. Driven gear; 20. Servo motor B; 21. Drive gear; 22. Support rod A; 23. Support pipe; 24. Support rod B; 25. Ring sleeve. Detailed Implementation

[0029] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0030] To improve the efficiency of desalination of industrial wastewater, as one embodiment of this utility model, such as... Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the present invention discloses a salt separation device for zero-discharge treatment of industrial wastewater, comprising a tank 2, a top cover 1 bolted to the top of the tank 2, and a servo motor B20 for providing power bolted inside the top cover 1. A support rod A22 is keyed to the power output end of the servo motor B20, and a drive gear 21 is sleeved on the outside of the support rod A22. A driven gear 19 is meshed with the outside of the drive gear 21, and a support rod B24 is snapped into the inside of the driven gear 19. A rope chain 10 is wound around the outside of the support rod B24, and a housing 13 is screwed to the end of the rope chain 10 away from the support rod B24. A fixed pipe 3 is inserted into the outside of the tank 2 to allow industrial wastewater to enter the housing 13. The bottom of the housing 13... A servo motor A16, which provides power, is bolted to the tank body 13. A drive rod 18, which agitates the industrial wastewater inside the tank body 13, is keyed to the power output end of the servo motor A16. An arc-shaped plate 17, which scrapes the inner wall of the tank body 13, is screwed to the outside of the drive rod 18. An outer ring frame A6 and an outer ring frame B8 are bolted to the outside of the tank body 2. The outer ring frame A6 is located on the upper side of the outer ring frame B8. A heating plate 11, which heats the industrial wastewater inside the tank body 13, is screwed to the inside of the outer ring frame A6. A cooling plate 15, which cools the bottom of the tank body 2, is screwed to the inside of the outer ring frame B8. A tank cover 7, which cleans the inside of the tank body 13, is hinged to the outside of the tank body 2. A branch pipe 23, which allows the generated steam to be discharged, is inserted into the top of the tank body 2.

[0031] In operation, when industrial wastewater is introduced into the tank 13 through the fixed pipe 3, the heating plate 11 inside the outer ring frame A6 is heated by an external controller, transferring the heat to the inside of the tank 13. The industrial wastewater is then heated within the tank 13. The steam generated from the heating is then discharged through the branch pipe 23 at the top of the tank 2, increasing the salt concentration of the wastewater inside the tank 13 and making it a supersaturated solution. Subsequently, the servo motor B20 inside the top cover 1, controlled by the external controller, converts the received electrical energy into mechanical energy. The motor B20 drives the support rod A22 to rotate. Then, the drive gear 21 outside the support rod A22 drives the support rod B24 inside the driven gear 19 to rotate. Then, the rope chain 10 outside the support rod B24 is unwound. Then, the rope chain 10 drives the box 13 to move to the bottom of the tank 2. At the same time, the cooling chip 15 inside the outer ring frame B8 comes into contact with the tank 2. The cooling chip 15 is cooled down at the bottom of the tank 2 by the action of the external controller, so that the industrial wastewater inside the bottom box 13 of the tank 2 is cooled down and produces crystallized salt, which facilitates the salt separation treatment of industrial wastewater.

[0032] When industrial wastewater undergoes desalination, the servo motor A16 inside the tank 13 is driven by an external controller to rotate the drive rod 18. The drive rod 18 agitates the industrial wastewater inside the tank 13, allowing it to be fully heated and heated rapidly. Then, the chain 10 moves the tank 13 to the bottom of the tank 2 for cooling. At the same time, the servo motor A16 inside the tank 13 drives the drive rod 18 to rotate, allowing the solution inside the tank 13 to be cooled rapidly. This improves the efficiency of desalination of industrial wastewater and reduces pipeline transportation, preventing crystalline salts from adhering to the inner wall of the pipeline during transportation.

[0033] When salt crystallizes inside the box 13, the servo motor A16 inside the box 13 drives the drive rod 18 to rotate, and the drive rod 18 drives the arc plate 17 to scrape the inner wall of the box 13 to prevent salt from crystallizing on the inner wall of the box 13.

[0034] To improve the stability of the box 13 moving within the tank 2, for example, such as Figure 2 As shown, the present invention also includes an arc block 12 welded to the outside of the box body 13, an arc groove 14 for sliding the arc block 12 on the inner wall of the tank body 2, and a rubber ring 4 for improving the sealing between the box body 13 and the tank body 2 fixed to the outside of the box body 13 by screws.

[0035] When in use, as the box 13 moves inside the tank 2, the arc block 12 outside the box 13 slides in the arc groove 14 opened inside the tank 2, which improves the stability of the box 13 moving inside the tank 2. At the same time, the rubber ring 4 outside the box 13 is tightly connected to the inner wall of the tank 2, thereby improving the sealing between the box 13 and the tank 2.

[0036] To prevent the rope chain 10 from becoming tangled and messy outside the support rod B24, for example, such as Figure 4 As shown, the present invention also includes a ring 25 that limits the movement of the rope chain 10, which is sleeved on the outside of the support rod B24.

[0037] When in use, when the rope chain 10 is wound up outside the support rod B24, the loop 25 outside the support rod B24 limits the rope chain 10 to prevent the rope chain 10 from being wound up messily outside the support rod B24.

[0038] To improve the stability of tank 2, for example, such as Figure 1 As shown, the present invention also includes a support leg 9 bolted to the bottom of the tank body 2 to support the tank body 2.

[0039] During use, the support legs 9 bolted to the bottom of the tank 2 provide support for the tank 2, improving the stability of the tank 2.

[0040] For heat dissipation of the cooling chip 15, for example, such as Figure 1As shown, the present invention also includes a fan 5 for cooling the cooling chip 15, which is screwed to one side of the outer ring frame B8.

[0041] When in use, the fan 5 on the outer ring frame B8 accelerates the airflow speed at the hot end of the cooling chip 15, thereby facilitating heat dissipation of the cooling chip 15 and improving the working efficiency of the cooling chip 15.

[0042] For electrical equipment to function properly, for example, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this utility model also includes the fact that the input terminals of the fan 5, servo motor A16, servo motor B20, cooling chip 15 and heating plate 11 are all electrically connected to the power supply terminal of an external power source.

[0043] When in use, the electrical equipment works normally by connecting to an external power source.

[0044] In use, when industrial wastewater is introduced into the tank 13 through the fixed pipe 3, the heating plate 11 inside the outer ring frame A6 is heated by an external controller, transferring the heat to the tank 13. The industrial wastewater is then heated within the tank 13. Subsequently, the steam generated from heating the industrial wastewater is discharged through the branch pipe 23 at the top of the tank 2, causing the salt concentration of the industrial wastewater inside the tank 13 to increase and become a supersaturated solution. Then, the servo motor B20 inside the top cover 1, controlled by the external controller, converts the received electrical energy into mechanical energy. Yes, the servo motor B20 drives the support rod A22 to rotate, and then the drive gear 21 outside the support rod A22 drives the support rod B24 inside the driven gear 19 to rotate. Then the rope chain 10 outside the support rod B24 is unwound, and then the rope chain 10 drives the box 13 to move to the bottom of the tank 2. At the same time, the cooling chip 15 inside the outer ring frame B8 comes into contact with the tank 2. The cooling chip 15 is cooled down at the bottom of the tank 2 by the action of the external controller, so that the industrial wastewater inside the bottom box 13 of the tank 2 is cooled down and produces crystallized salt, which facilitates the salt separation treatment of industrial wastewater.

[0045] When industrial wastewater undergoes desalination, the servo motor A16 inside the tank 13 is driven by an external controller to rotate the drive rod 18. The drive rod 18 agitates the industrial wastewater inside the tank 13, allowing it to be fully heated and heated rapidly. Then, the chain 10 moves the tank 13 to the bottom of the tank 2 for cooling. At the same time, the servo motor A16 inside the tank 13 drives the drive rod 18 to rotate, allowing the solution inside the tank 13 to be cooled rapidly. This improves the efficiency of desalination of industrial wastewater and reduces pipeline transportation, preventing crystalline salts from adhering to the inner wall of the pipeline during transportation.

[0046] When salt crystallizes inside the box 13, the servo motor A16 inside the box 13 drives the drive rod 18 to rotate, and the drive rod 18 drives the arc plate 17 to scrape the inner wall of the box 13 to prevent salt crystallization on the inner wall of the box 13.

[0047] When the box 13 moves inside the tank 2, the arc block 12 outside the box 13 slides in the arc groove 14 opened inside the tank 2, which improves the stability of the box 13 moving inside the tank 2. At the same time, the rubber ring 4 outside the box 13 is tightly connected to the inner wall of the tank 2, thereby improving the sealing between the box 13 and the tank 2.

[0048] When the rope chain 10 is wound up outside the support rod B24, the loop 25 outside the support rod B24 limits the rope chain 10 to prevent the rope chain 10 from being wound up messily outside the support rod B24.

[0049] The support legs 9 bolted to the bottom of tank 2 support tank 2 and improve the stability of tank 2;

[0050] The fan 5 on the outer ring frame B8 accelerates the airflow speed at the hot end of the cooling chip 15, thereby facilitating heat dissipation of the cooling chip 15 and improving its working efficiency.

[0051] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A salt separation device for zero-discharge treatment of industrial wastewater, characterized in that, The tank includes a tank body (2), the top of which is bolted to a top cover (1), and the top cover (1) is bolted to a servo motor B (20) that provides power. The power output end of the servo motor B (20) is keyed to a support rod A (22), and a drive gear (21) is sleeved on the outside of the support rod A (22). A driven gear (19) is meshed on the outside of the drive gear (21), and a support rod B (24) is snapped into the inside of the driven gear (19). A rope chain (10) is wound around the outside of the support rod B (24), and a box body (13) is screwed to the end of the rope chain (10) away from the support rod B (24). A fixed pipe (3) is inserted into the outside of the tank body (2) to allow industrial wastewater to enter the box body (13). The bottom of the box body (13) is bolted to a servo motor A (20) that provides power. 16), and the power output end of the servo motor A (16) is keyed to a drive rod (18) for agitating the industrial wastewater in the box (13). The drive rod (18) is screwed to an arc plate (17) for scraping the inner wall of the box (13). The tank (2) is bolted to an outer ring frame A (6) and an outer ring frame B (8). The outer ring frame A (6) is located on the upper side of the outer ring frame B (8). The outer ring frame A (6) is screwed to a heating plate (11) for heating the industrial wastewater in the box (13). The outer ring frame B (8) is screwed to a cooling plate (15) for cooling the bottom of the tank (2). The tank (2) is hinged to a tank cover (7) for cleaning the inside of the box (13). The tank (2) is plugged to a branch pipe (23) for venting the generated steam.

2. A salt separation device for zero-discharge treatment of industrial wastewater according to claim 1, characterized in that, The box (13) is welded with an arc block (12) on the outside, and the inner wall of the tank (2) is provided with an arc groove (14) for sliding the arc block (12). The box (13) is screwed with a rubber ring (4) to improve the sealing between the box (13) and the tank (2).

3. A salt separation device for zero-discharge treatment of industrial wastewater according to claim 1, characterized in that, The support rod B (24) is fitted with a ring (25) that limits the rope chain (10).

4. A salt separation device for zero-discharge treatment of industrial wastewater according to claim 1, characterized in that, The bottom of the tank (2) is bolted with support legs (9) that support the tank (2).

5. A salt separation device for zero-discharge treatment of industrial wastewater according to claim 1, characterized in that, The outer ring frame B (8) is screwed to one side with a fan (5) for cooling the cooling chip (15).

6. A salt separation device for zero-discharge treatment of industrial wastewater according to claim 5, characterized in that, The input terminals of the fan (5), servo motor A (16), servo motor B (20), cooling plate (15), and heating plate (11) are all electrically connected to the power supply terminal of an external power source.

Citation Information

Patent Citations

  • Salt separation and crystallization system for industrial high-salinity wastewater

    CN219652732U