Solid-liquid separation device for evaporative crystallization
By designing a solid-liquid separation device for evaporation crystallization, and utilizing a combination of sedimentation tank and screening components, efficient solid-liquid separation of the mixed liquid is achieved, solving the problems of high energy consumption and long processing cycle caused by high water content, and reducing the energy consumption and equipment cost of evaporation crystallization.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-24
- Publication Date
- 2026-03-10
AI Technical Summary
The high water content of the mixed solution in the existing technology leads to high energy consumption for evaporation and crystallization, and long processing cycle. In particular, the equipment investment cost is high and the energy consumption ratio is too high when processing low concentration solutions.
A solid-liquid separation device including a sedimentation tank and a screening component was designed. By using a combination of sedimentation and filtration, the clarified liquid is first discharged through the drainage component, and then the water is further separated through the screening component, thereby reducing the energy consumption of subsequent evaporation and crystallization.
It effectively reduces the energy consumption of evaporation and crystallization, shortens the processing cycle, and reduces equipment investment costs.
Smart Images
Figure CN223980248U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of solid-liquid separation devices, specifically a solid-liquid separation device for evaporation crystallization. Background Technology
[0002] In the fields of chemical engineering, pharmaceuticals, and salt lake resource development, evaporation crystallization is a common process for separating solutes and solvents. However, the high water content of the mixed solution in existing technologies leads to high energy consumption and long processing cycles during the evaporation stage. For example, in the treatment of sodium nitrate wastewater, low-concentration solutions (3-4%) require multi-effect evaporation to achieve crystallization. While increasing the number of effects can reduce steam consumption, it significantly increases equipment investment costs. In the evaporation crystallization of ammonium sulfate, a solution with an initial concentration of only 20% requires the evaporation of 2.4 tons of water per hour. Direct treatment results in excessively high energy consumption. Therefore, we propose a solid-liquid separation device for evaporation crystallization. Utility Model Content
[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a solid-liquid separation device for evaporation crystallization, which can reduce the moisture content before evaporation crystallization, thereby reducing the energy consumption of evaporation crystallization and effectively solving the problems in the background art.
[0004] To achieve the above objectives, the present invention provides the following technical solution: a solid-liquid separation device for evaporation crystallization, comprising a sedimentation tank and a sieving assembly;
[0005] Sedimentation tank: A drainage component is installed at the front end of the surface;
[0006] The screening assembly includes a fixed ring, moving blocks, a filter screen, a threaded rod, a limiting rod, and a first motor. A fixed ring is located at the bottom of the sedimentation tank. Two corresponding moving blocks are fixed on the circumference of the fixed ring. Two corresponding strip grooves are formed at the left and right ends inside the sedimentation tank. A filter screen is fixed inside the fixed ring. A threaded hole is formed in the middle of the left moving block, and a threaded rod is threadedly connected inside the threaded hole. The threaded rod is rotatably connected inside the left strip groove. A limiting hole is formed in the middle of the right moving block, and a limiting rod is slidably connected inside the limiting hole. The limiting rod is fixed inside the right strip groove. A first motor is installed at the top of the sedimentation tank. The output shaft of the first motor is fixed to the upper end of the threaded rod. The input end of the first motor is electrically connected to the output end of an external control switch group. The screening assembly is used to screen the moisture in the sediment.
[0007] Furthermore, the drainage assembly includes an arc-shaped sealing plate, a drainage groove, a second motor, a toothed plate, a fixing plate, a rotating shaft, and gear rings. An opening is provided at the front end of the circumferential surface of the sedimentation tank. An arc-shaped sealing plate is slidably connected inside the opening. A drainage groove is provided on the upper side of the arc-shaped sealing plate. Two corresponding toothed plates are fixed to the front side of the arc-shaped sealing plate. Two corresponding fixing plates are fixed to the lower side of the front end of the sedimentation tank. A rotating shaft is rotatably connected between the two fixing plates. Two corresponding gear rings are fixed to the circumferential surface of the rotating shaft, and the two gear rings mesh with the two toothed plates respectively. A second motor is installed on the left side of the left fixing plate. The output shaft of the second motor is fixed to the left end of the rotating shaft. The input end of the second motor is electrically connected to the output end of an external control switch group. The drainage assembly is used to drain the clarified liquid after sedimentation.
[0008] Furthermore, the sedimentation tank has two corresponding strip grooves inside, and sealing strips are fixed inside the strip grooves. The two sealing strips are respectively attached to the sides of two arc-shaped sealing plates, and the gap between the arc-shaped sealing plates and the sedimentation tank wall is sealed by setting the sealing strips.
[0009] Furthermore, an observation port is provided in the middle of the arc-shaped sealing plate, and a transparent plate is fixed inside the observation port, so that users can easily observe the situation inside the sedimentation tank.
[0010] Furthermore, the lower end of the sedimentation tank is fixed with three corresponding support legs, and the lower end of the three support legs is fixed with a support ring, thereby supporting the sedimentation tank by setting the support legs and support rings.
[0011] Furthermore, a drain outlet is provided at the lower end of the rear side of the sedimentation tank surface, and a sealing plug is threaded into the drain outlet to seal it.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This solid-liquid separation device for evaporation crystallization has the following advantages:
[0013] 1. By setting up a sedimentation tank, the mixture to be evaporated and crystallized is injected into the sedimentation tank during use. Then, the mixture settles. After sedimentation, the second motor is started, which rotates the two gear rings and drives the two toothed plates to move downward. The downward movement of the two toothed plates drives the arc-shaped sealing plate to move downward. During the downward movement of the arc-shaped sealing plate, the drainage trough moves downward. During this process, the clarified liquid after sedimentation of the mixture inside the sedimentation tank will be gradually discharged through the downward movement of the drainage trough. In this way, the initial solid-liquid separation can be achieved.
[0014] 2. After the clarified liquid after sedimentation is discharged through the screening component, the first motor can be started to rotate the threaded rod. The rotation of the threaded rod drives the fixed ring to move upward, thereby causing the filter screen to move upward. During the upward movement of the filter screen, the water in the sediment will pass through the filter screen and be discharged into the interior of the sedimentation tank. At this time, the sealing plug is removed to drain the water at the bottom of the sedimentation tank. In this way, solid-liquid separation can be further carried out. After solid-liquid separation, the energy consumption of subsequent evaporation and crystallization can be effectively reduced. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the front structure of this utility model;
[0016] Figure 2 This utility model Figure 1 Enlarged view of point A in the middle;
[0017] Figure 3 This is a schematic diagram of the screening component structure of this utility model.
[0018] In the diagram: 1. Sedimentation tank; 2. Screening assembly; 21. Fixing ring; 22. Moving block; 23. Filter screen; 24. Threaded rod; 25. Limiting rod; 26. First motor; 3. Drainage assembly; 31. Arc-shaped sealing plate; 32. Drainage trough; 33. Second motor; 34. Toothed plate; 35. Fixing plate; 36. Rotating shaft; 37. Gear ring; 4. Sealing strip; 5. Transparent plate; 6. Support leg; 7. Support ring; 8. Sealing plug. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] Please see Figure 1-3 This embodiment provides a technical solution: a solid-liquid separation device for evaporation crystallization, including a sedimentation tank 1 and a screening component 2;
[0021] Sedimentation tank 1: A drainage assembly 3 is installed at the front end of the surface. The drainage assembly 3 includes an arc-shaped sealing plate 31, a drainage groove 32, a second motor 33, a toothed plate 34, a fixing plate 35, a rotating shaft 36, and a gear ring 37. An opening is provided at the front end of the circumferential surface of sedimentation tank 1. An arc-shaped sealing plate 31 is slidably connected inside the opening. A drainage groove 32 is provided on the upper side of the arc-shaped sealing plate 31. Two corresponding toothed plates 34 are fixed on the front side of the arc-shaped sealing plate 31. Two corresponding fixing plates 35 are fixed on the lower side of the front end of the surface of sedimentation tank 1. A rotating shaft 36 is rotatably connected between the two fixing plates 35. Two corresponding gear rings 37 are fixed on the circumferential surface of the rotating shaft 36. The two gear rings 37 mesh with the two toothed plates 34 respectively. A second motor 33 is installed on the left side of the fixing plate 35 on the left side. The output shaft of the second motor 33 is fixed at the left end of the rotating shaft 36. The input end of the second motor 33 is electrically connected to the output end of an external control switch group. The clarified liquid after sedimentation is discharged by setting the drainage assembly 3.
[0022] Screening assembly 2 includes a fixed ring 21, a moving block 22, a filter screen 23, a threaded rod 24, a limiting rod 25, and a first motor 26. A fixed ring 21 is provided at the bottom of the sedimentation tank 1. Two corresponding moving blocks 22 are fixed on the circumference of the fixed ring 21. Two corresponding strip grooves are opened at the left and right ends inside the sedimentation tank 1. The filter screen 23 is fixed inside the fixed ring 21. A threaded hole is opened in the middle of the moving block 22 on the left side, and a threaded rod 24 is threadedly connected inside the threaded hole. The threaded rod 24 is rotatably connected inside the strip groove on the left side. A limiting hole is opened in the middle of the moving block 22 on the right side, and a limiting rod 25 is slidably connected inside the limiting hole. The limiting rod 25 is fixed inside the strip groove on the right side. A first motor 26 is installed at the upper end of the sedimentation tank 1. The output shaft of the first motor 26 is fixed to the upper end of the threaded rod 24. The input end of the first motor 26 is electrically connected to the output end of an external control switch group. The screening assembly 2 is used to screen the moisture in the sediment.
[0023] Specifically: The sedimentation tank 1 has two corresponding strip grooves inside, and sealing strips 4 are fixed inside the strip grooves. The two sealing strips 4 are respectively attached to the sides of the two arc-shaped sealing plates 31. The gap between the arc-shaped sealing plates 31 and the tank wall of the sedimentation tank 1 is sealed by setting the sealing strips 4.
[0024] Among them, the arc-shaped sealing plate 31 has an observation port in the middle, and a transparent plate 5 is fixed inside the observation port. The transparent plate 5 makes it convenient for users to observe the inside of the sedimentation tank 1.
[0025] Among them: the lower end of the sedimentation tank 1 is fixed with three corresponding support legs 6, and the lower end of the three support legs 6 is fixed with support rings 7. The sedimentation tank 1 is supported by the support legs 8 and support rings 7.
[0026] Wherein: A drain outlet is provided at the lower end of the rear side of the sedimentation tank 1, and a sealing plug 8 is connected to the internal thread of the drain outlet to seal the drain outlet.
[0027] The working principle of the solid-liquid separation device for evaporation and crystallization provided by this utility model is as follows: During use, the mixed liquid to be evaporated and crystallized is injected into the interior of the sedimentation tank 1, and then the mixed liquid is allowed to settle. After the mixed liquid settles, the second motor 33 is started, which causes the two gear rings 37 to rotate and drive the two toothed plates 34 to move downward. The two toothed plates 34 move downward, which drives the arc-shaped sealing plate 31 to move downward. During the downward movement of the arc-shaped sealing plate 31, the drainage trough 32 moves downward. During this process, the clarified liquid after sedimentation of the mixed liquid in the sedimentation tank 1 will be gradually discharged through the downward movement of the drainage trough 32. In this case, the solid-liquid separation can be initially carried out. After the clarified liquid after sedimentation is discharged, the first motor 26 can be started, which causes the threaded rod 24 to rotate. The rotation of the threaded rod 24 drives the fixed ring 21 to move upward, which causes the filter screen 23 to move upward. During the upward movement of the filter screen 23, the water in the sediment will pass through the filter screen 23 and be discharged into the interior of the sedimentation tank 1. At this time, the sealing plug 8 is removed and the water at the bottom of the sedimentation tank 1 is discharged. In this case, the solid-liquid separation can be further carried out. After the solid-liquid separation, the energy consumption of subsequent evaporation and crystallization can be effectively reduced.
[0028] It is worth noting that the external control switch group disclosed in the above embodiments is provided with buttons that correspond one-to-one with the first motor 26 and the second motor 33. The first motor 26 and the second motor 33 can be selected as 1LE0003 three-phase asynchronous motors.
[0029] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A solid-liquid separation device for evaporative crystallization, characterized by: Including the sedimentation barrel (1) and the screening assembly (2); The surface of the sedimentation barrel (1) is provided with a liquid discharge assembly (3) at the front end; The screening assembly (2) comprises a fixed ring (21), a moving block (22), a filter screen (23), a threaded rod (24), a limiting rod (25) and a first motor (26), the bottom of the sedimentation barrel (1) is provided with the fixed ring (21), the circumferential surface of the fixed ring (21) is fixed with two corresponding moving blocks (22), the left and right ends of the inside of the sedimentation barrel (1) are provided with two corresponding strip-shaped grooves, the inside of the fixed ring (21) is fixed with the filter screen (23), the middle part of the left moving block (22) is provided with a threaded hole, the inside of the threaded hole is threadedly connected with the threaded rod (24), the threaded rod (24) is rotatably connected in the inside of the left strip-shaped groove, the middle part of the right moving block (22) is provided with a limiting hole, the inside of the limiting hole is slidably connected with the limiting rod (25), the limiting rod (25) is fixed in the inside of the right strip-shaped groove, the upper end of the sedimentation barrel (1) is provided with the first motor (26), the output shaft of the first motor (26) is fixed at the upper end of the threaded rod (24), and the input end of the first motor (26) is electrically connected with the output end of the control switch group.
2. A solid-liquid separation device for evaporative crystallization according to claim 1, characterized in that: The liquid discharge assembly (3) comprises an arc-shaped sealing plate (31), a drainage groove (32), a second motor (33), a toothed plate (34), a fixed plate (35), a rotating shaft (36) and a gear ring (37), the circumferential surface of the sedimentation barrel (1) is provided with an opening at the front end, the inside of the opening is slidably connected with the arc-shaped sealing plate (31), the upper side of the arc-shaped sealing plate (31) is provided with the drainage groove (32), the front side of the arc-shaped sealing plate (31) is fixed with two corresponding toothed plates (34), the lower side of the front end of the surface of the sedimentation barrel (1) is fixed with two corresponding fixed plates (35), the rotating shaft (36) is rotatably connected between the two fixed plates (35), the circumferential surface of the rotating shaft (36) is fixed with two corresponding gear rings (37), the two gear rings (37) are respectively engaged with the two toothed plates (34), the left side of the left fixed plate (35) is provided with the second motor (33), the output shaft of the second motor (33) is fixed at the left end of the rotating shaft (36), and the input end of the second motor (33) is electrically connected with the output end of the control switch group.
3. A solid-liquid separation device for evaporative crystallization according to claim 2, characterized in that: The inside of the sedimentation barrel (1) is provided with two corresponding strip-shaped grooves, the inside of the strip-shaped groove is fixed with a sealing strip (4), and the two sealing strips (4) are respectively attached to the side surfaces of the two arc-shaped sealing plates (31).
4. A solid-liquid separation device for evaporative crystallization according to claim 2, characterized in that: The middle part of the arc-shaped sealing plate (31) is provided with an observation hole, and the inside of the observation hole is fixed with a transparent plate (5).
5. A solid-liquid separation device for evaporative crystallization according to claim 1, characterized in that: The lower end of the sedimentation barrel (1) is fixed with three corresponding supporting legs (6), and the lower end of the three supporting legs (6) is fixed with a supporting ring (7).
6. A solid-liquid separation device for evaporative crystallization according to claim 1, characterized in that: The lower end of the rear side of the surface of the sedimentation barrel (1) is provided with a drainage opening, and the inside of the drainage opening is threadedly connected with a sealing plug (8).