Continuous discharge device for an evaporative crystallization system
By designing a continuous discharge device for the evaporation crystallization system, the problem of supersaturation caused by excessive solute concentration was solved by utilizing the combined motion of the stirring paddle and spiral blades. This achieved stable solution delivery and continuous crystal discharge, reducing equipment downtime and energy consumption.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU XINLIN ENERGY SAVING EVAPORATION EQUIP CO LTD
- Filing Date
- 2025-06-12
- Publication Date
- 2026-06-02
AI Technical Summary
In evaporation crystallization systems, the infinite increase in solute concentration leads to excessively high supersaturation. Existing technologies lack effective continuous discharge devices, resulting in equipment downtime and increased energy consumption.
A continuous discharge device for an evaporation crystallization system was designed, including an evaporation box, a crystallization box, a stirring paddle, a spiral blade, and an L-shaped discharge pipe. Through the combined movement of stirring and spiral blade, stable delivery of solution and continuous discharge of crystals are achieved.
It achieves continuous and stable delivery of solutions, prevents blockages, reduces downtime, saves equipment energy, and improves processing efficiency.
Smart Images

Figure CN224307851U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of evaporation crystallization technology, and in particular to a continuous discharge device for an evaporation crystallization system. Background Technology
[0002] An evaporation crystallization system is an industrial device that uses heating to vaporize a solvent, thereby causing the solute to precipitate in crystal form. It is widely used in chemical, food, pharmaceutical, and environmental protection fields. During the evaporation crystallization process, the solvent continuously vaporizes, and the solution concentration continuously rises to a supersaturated state. If the crystals and mother liquor are not discharged in time, the solute concentration in the system will rise indefinitely, resulting in excessively high supersaturation. Therefore, it is necessary to propose a continuous discharge device for the evaporation crystallization system. Utility Model Content
[0003] The purpose of this invention is to address the problems existing in the background technology by proposing a continuous discharge device for an evaporation crystallization system.
[0004] The technical solution of this utility model: A continuous discharge device for an evaporation crystallization system, comprising an evaporation chamber, a mounting cover slidably disposed on the top surface of the evaporation chamber, an L-shaped bracket disposed on the top surface of the mounting cover, a motor disposed on the top surface of the L-shaped bracket, the output end of the motor extending through into the interior of the L-shaped bracket and having a gear disposed thereon, a geared disc rotatably disposed on the top surface of the mounting cover, a sleeve disposed on the bottom surface of the geared disc, multiple stirring paddles disposed on the outer ring of the sleeve, a hollow shaft motor disposed on the top surface of the geared disc, a screw threadedly connected to the interior of the hollow shaft motor, a connecting rod disposed at the bottom end of the screw, a spiral blade disposed on the outer ring of the connecting rod, and a spiral blade disposed on the bottom surface of the evaporation chamber. A feeding control plate is provided, with a feeding trough on the top surface of the feeding control plate and an adjustment groove in the middle of the feeding trough. A second motor is provided on the left side of the feeding control plate, and the output end of the second motor extends through the interior of the adjustment groove and is provided with a bidirectional threaded rod. Both ends of the bidirectional threaded rod are threaded to a feeding plate. A crystallization box is provided on the bottom surface of the feeding control plate, and an extension pipe is provided on the bottom surface of the feeding control plate at the position of the feeding trough. An L-shaped discharge pipe is provided on the bottom surface of the crystallization box, and a third motor is provided on the left side of the L-shaped discharge pipe. The output end of the third motor extends through the interior of the L-shaped discharge pipe and is provided with a rotating rod. A second spiral blade is provided on the outer ring of the rotating rod.
[0005] Preferably, a liquid feed pipe is provided on the left side of the evaporator, a steam outlet pipe is provided on the top surface of the mounting cover, and a liquid return pipe is provided on the left side of the crystallization box.
[0006] Preferably, the gear and the gear disk are meshed.
[0007] Preferably, the sleeve extends into the interior of the evaporator, and the outer ring of the sleeve is rotatably connected to the mounting cover.
[0008] Preferably, the side of the stirring paddle away from the sleeve is in contact with the inner wall of the evaporator.
[0009] Preferably, the top surface of the gear disc has a circular hole, the screw is slidably connected to the circular hole, and both the top and bottom ends of the screw are provided with stops.
[0010] Preferably, a limiting block is provided on the right side of the connecting rod, and a limiting groove is formed on the inner wall of the sleeve, with the limiting block and the limiting groove being slidably connected.
[0011] Preferably, the outer ring of the spiral blade is in contact with the inner ring of the sleeve.
[0012] Preferably, the inner wall of the bottom end of the extension tube is the same size as the inner wall of the sleeve.
[0013] Compared with the prior art, the present invention has the following beneficial technical effects:
[0014] This invention, by setting up an evaporator to an extension pipe, facilitates the supersaturation of the liquid while simultaneously transporting the supersaturated solution into the crystallization chamber. The spiral blades ensure smooth transport into the crystallization chamber, preventing blockages. The L-shaped discharge pipe to the spiral blades ensures stable crystal discharge, preventing blockages and ensuring continuous discharge. This reduces downtime, saves energy, and improves processing efficiency. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a cross-sectional structural diagram of the present invention;
[0017] Figure 3 This is a cross-sectional view of a portion of the structure of this utility model.
[0018] Attached reference numerals: 1. Evaporator; 2. Mounting cover; 3. L-shaped bracket; 4. Motor 1; 5. Gear; 6. Gear disc; 7. Sleeve; 8. Stirring paddle; 9. Hollow shaft motor; 10. Screw; 11. Connecting rod; 12. Spiral blade 1; 13. Feed control board; 14. Motor 2; 15. Bidirectional threaded rod; 16. Feed plate; 17. Crystallizer; 18. Extension pipe; 19. L-shaped discharge pipe; 20. Motor 3; 21. Rotating rod; 22. Spiral blade 2; 23. Feed pipe; 24. Steam discharge pipe; 25. Feed return pipe; 26. Baffle; 27. Limiting block. Detailed Implementation
[0019] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments. Example
[0020] like Figures 1 to 3 As shown, the present invention proposes a continuous discharge device for an evaporation crystallization system, including an evaporation chamber 1. A liquid feed pipe 23 is provided on the left side of the evaporation chamber 1 to facilitate the delivery of the liquid to be processed into the interior of the evaporation chamber 1. A mounting cover 2 is slidably provided on the top surface of the evaporation chamber 1. The evaporation chamber 1 and the mounting cover 2 are slidably connected to each other to facilitate subsequent cleaning of the inner wall of the evaporation chamber 1 and prevent crystal adhesion. A steam discharge pipe 24 is provided on the top surface of the mounting cover 2 to facilitate the delivery of the gas generated by heating and evaporation. An L-shaped bracket 3 is provided on the top surface of the mounting cover 2 and is fixedly connected to the bottom surface of the L-shaped bracket 3. A motor 4 is provided on the top surface of the L-shaped bracket 3 and is fixedly connected to the bottom surface of the motor 4. The output end of the motor 4 extends through into the interior of the L-shaped bracket 3 and is provided with a gear 5. The output end of the motor 4 is rotatably connected to the L-shaped bracket 3 and is fixedly connected to the gear 5.
[0021] A geared disc 6 is rotatably mounted on the top surface of the mounting cover 2. Gears 5 mesh with the geared disc 6 for easy transmission. A sleeve 7 is mounted on the bottom surface of the geared disc 6, and the bottom surface of the geared disc 6 is fixedly connected to the top of the sleeve 7. Multiple stirring paddles 8 are mounted on the outer ring of the sleeve 7, and the outer ring of the sleeve 7 is fixedly connected to the stirring paddles 8. The side of the stirring paddles 8 away from the sleeve 7 is in contact with the inner wall of the evaporator 1, facilitating scraping of the inner wall of the evaporator 1 by the stirring paddles 8 during rotation, preventing excessive crystal adhesion. The geared disc 6... A hollow shaft motor 9 is installed on the top surface. The top surface of the gear disk 6 is fixedly connected to the bottom surface of the hollow shaft motor 9. A screw 10 is threaded inside the hollow shaft motor 9. A round hole is opened on the top surface of the gear disk 6. The screw 10 is slidably connected to the round hole to facilitate the movement of the screw 10. A stop block 26 is provided at both the top and bottom ends of the screw 10. The top and bottom ends of the screw 10 are fixedly connected to the stop block 26. A connecting rod 11 is provided at the bottom end of the screw 10. The bottom end of the screw 10 is fixedly connected to the connecting rod 11.
[0022] A limit block 27 is provided on the right side of the connecting rod 11, and the right side of the connecting rod 11 is fixedly connected to the left side of the limit block 27. A limit groove is provided on the inner wall of the sleeve 7, and the limit block 27 is slidably connected to the limit groove. The limit groove can guide and limit the limit block 27, thereby limiting the connecting rod 11 and the screw 10. Therefore, when the inner rotor of the hollow shaft motor 9 rotates, it can drive the screw 10 to move up and down. A spiral blade is provided on the outer ring of the connecting rod 11. 12. The outer ring of the connecting rod 11 is fixedly connected to the first spiral blade 12. The outer ring of the first spiral blade 12 is in contact with the inner ring of the sleeve 7. The bottom surface of the evaporator 1 is provided with a feeding control plate 13. The bottom surface of the evaporator 1 is fixedly connected to the feeding control plate 13. The top surface of the feeding control plate 13 is provided with a feeding groove. The middle end of the feeding groove is provided with an adjustment groove. The left side of the feeding control plate 13 is provided with a second motor 14. The left side of the feeding control plate 13 is fixedly connected to the right side of the second motor 14.
[0023] The output end of motor 14 extends through the interior of the regulating trough and is equipped with a bidirectional threaded rod 15. The output end of motor 14 is fixedly connected to the bidirectional threaded rod 15. Both ends of the bidirectional threaded rod 15 are threadedly connected to a feed plate 16. The output end of motor 14 can drive the bidirectional threaded rod 15 to rotate. The rotation of the bidirectional threaded rod 15 can drive the two feed plates 16 to move closer or further apart, thereby controlling the conveying of liquid inside the evaporator 1. A crystallization box 17 is provided on the bottom surface of the feed control plate 13. The bottom surface of the feed control plate 13 is fixedly connected to the crystallization box 17. A liquid return pipe 25 is provided on the left side of the crystallization box 17. The liquid can be returned to the interior of the evaporator 1 for heating and evaporation through the liquid return pipe 25. An extension pipe 18 is provided on the bottom surface of the feed control plate 13 at the position of the feed trough. The bottom surface of the feed control plate 13 is fixedly connected to the extension pipe 18.
[0024] The inner wall of the bottom end of the extension tube 18 is the same size as the inner wall of the sleeve 7, which facilitates the extension of the spiral blade 12 into the interior of the extension tube 18, thereby facilitating the transfer of supersaturated liquid. An L-shaped discharge tube 19 is provided on the bottom surface of the crystallization box 17. The bottom surface of the crystallization box 17 is fixedly connected to the top end of the L-shaped discharge tube 19. A motor 20 is provided on the left side of the L-shaped discharge tube 19. The left side of the L-shaped discharge tube 19 is fixedly connected to the right side of the motor 20. The output end of the motor 20 extends through into the interior of the L-shaped discharge tube 19 and is provided with a rotating rod 21. The output end of the motor 20 is rotatably connected to the L-shaped discharge tube 19. The output end of the motor 20 is fixedly connected to the rotating rod 21. A spiral blade 22 is provided on the outer ring of the rotating rod 21. The outer ring of the rotating rod 21 is fixedly connected to the spiral blade 22.
[0025] In this embodiment, when using this device, the liquid to be processed is first injected into the evaporator 1 through the liquid inlet pipe 23, and then heated and evaporated. The evaporated gas is output through the steam outlet pipe 24. Simultaneously, motor 4 is operated, and its output drives gear 5 to rotate. The rotation of gear 5 drives gear disc 6 to rotate, which in turn drives sleeve 7 to rotate. The rotation of sleeve 7 drives stirring paddle 8, thereby stirring the liquid, making the heating more uniform and improving heating efficiency. Then, when the liquid inside the evaporator 1 is heated to a supersaturated state, motor 14 drives bidirectional threaded rod 15 to rotate. The rotation of bidirectional threaded rod 15... The two feed plates 16 can be moved to both sides, so that the liquid inside the evaporator 1 can be transferred to the crystallizer 17. In order to ensure smooth liquid transportation, the hollow shaft motor 9 can be operated. The inner rotor of the hollow shaft motor 9 drives the screw 10 to move up and down, so that the spiral blade 12 extends into the crystallizer 17. The liquid inside the evaporator 1 can be smoothly transported into the crystallizer 17. Then, crystallization occurs inside the crystallizer 17. The precipitated crystals fall into the L-shaped discharge pipe 19 under gravity. Then, the motor 20 drives the rotating rod 21 to rotate. The rotation of the rotating rod 21 can drive the spiral blade 22 to rotate. The spiral blade 22 can transport the crystals out.
[0026] The above-described specific embodiments are merely preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above-described specific embodiments.
Claims
1. A continuous discharge device for an evaporation crystallization system, comprising an evaporation chamber (1), characterized in that: The top surface of the evaporator (1) is slidably provided with a mounting cover (2), the top surface of the mounting cover (2) is provided with an L-shaped bracket (3), the top surface of the L-shaped bracket (3) is provided with a motor (4), the output end of the motor (4) extends through into the interior of the L-shaped bracket (3) and is provided with a gear (5), the top surface of the mounting cover (2) is rotatably provided with a gear plate (6), the bottom surface of the gear plate (6) is provided with a sleeve (7), the outer ring of the sleeve (7) is provided with multiple stirring paddles (8), the top surface of the gear plate (6) is provided with a hollow shaft motor (9), the hollow shaft motor (9) is internally threaded with a screw (10), the bottom end of the screw (10) is provided with a connecting rod (11), the outer ring of the connecting rod (11) is provided with a spiral blade (12), the bottom surface of the evaporator (1) is provided with a feed control plate (13), the feed control plate ( 13) A material passage groove is provided on the top surface, and an adjustment groove is provided in the middle of the material passage groove. A motor two (14) is provided on the left side of the material passage control plate (13). The output end of the motor two (14) extends through to the interior of the adjustment groove and is provided with a bidirectional threaded rod (15). The outer rings of both ends of the bidirectional threaded rod (15) are threadedly connected to a feed plate (16). A crystallization box (17) is provided on the bottom surface of the material passage control plate (13). An extension pipe (18) is provided on the bottom surface of the material passage control plate (13) at the position of the material passage groove. An L-shaped discharge pipe (19) is provided on the bottom surface of the crystallization box (17). A motor three (20) is provided on the left side of the L-shaped discharge pipe (19). The output end of the motor three (20) extends through to the interior of the L-shaped discharge pipe (19) and is provided with a rotating rod (21). A spiral blade two (22) is provided on the outer ring of the rotating rod (21).
2. The continuous discharge device for an evaporation crystallization system according to claim 1, characterized in that, The evaporator (1) is provided with a liquid feed pipe (23) on the left side, the top surface of the mounting cover (2) is provided with a steam outlet pipe (24), and the crystallizer (17) is provided with a liquid return pipe (25) on the left side.
3. The continuous discharge device for an evaporation crystallization system according to claim 1, characterized in that, The gear (5) is meshed with the toothed disc (6).
4. The continuous discharge device for an evaporation crystallization system according to claim 1, characterized in that, The sleeve (7) extends into the interior of the evaporator (1), and the outer ring of the sleeve (7) is rotatably connected to the mounting cover (2).
5. The continuous discharge device for an evaporation crystallization system according to claim 1, characterized in that, The side of the stirring paddle (8) away from the sleeve (7) is in contact with the inner wall of the evaporator (1).
6. The continuous discharge device for an evaporation crystallization system according to claim 1, characterized in that, The top surface of the toothed disc (6) is provided with a circular hole, and the screw (10) is slidably connected to the circular hole. Both the top and bottom ends of the screw (10) are provided with stop blocks (26).
7. The continuous discharge device for an evaporation crystallization system according to claim 1, characterized in that, A limiting block (27) is provided on the right side of the connecting rod (11), and a limiting groove is provided on the inner wall of the sleeve (7). The limiting block (27) and the limiting groove are slidably connected.
8. The continuous discharge device for an evaporation crystallization system according to claim 1, characterized in that, The outer ring of the spiral blade (12) is in contact with the inner ring of the sleeve (7).
9. A continuous discharge device for an evaporation crystallization system according to claim 1, characterized in that, The inner wall of the bottom end of the extension tube (18) is the same size as the inner wall of the sleeve (7).