A low-temperature evaporation crystallization device facilitating precipitation

Abstract

The utility model relates to low temperature evaporation crystallization technical field, and disclose a low temperature evaporation crystallization device convenient to separate out, including crystallizing jar, the left side position welding of crystallizing jar's top has the liquid injection port, the outer wall of crystallizing jar is provided with heating ring, the top center position welding of crystallizing jar has fixed cylinder, this low temperature evaporation crystallization device convenient to separate out, through being provided with control assembly, the output shaft of motor takes the rotation of rotating lever in fixed cylinder, the fixed lug of rotating lever outer wall can rotate synchronously, the lug will touch the surface of gyro wheel in the process of rotating, the gyro wheel is touched when the round bar can move in the longitudinal direction in crystallizing jar, the fixed disc of round bar outer wall can slide synchronously when round bar moves, and the outer wall of disc is provided with hole, thereby can in the process of longitudinal movement, the solution in crystallizing jar is disturbed constantly, can quickly scatter the uneven state of upper layer dilute, lower layer concentrated, avoid the emergence of too many small microcrystalline.

Description

Technical Field

[0001] This utility model relates to the field of low-temperature evaporation crystallization technology, specifically to a low-temperature evaporation crystallization device that facilitates precipitation. Background Technology

[0002] A low-temperature evaporation crystallization device is a device that uses low-temperature conditions to crystallize and precipitate solutes in a solution. It is mainly used to treat high-salt wastewater, heat-sensitive materials, etc. Based on the principle that the boiling point of water is proportional to the gas pressure, the boiling point of water is lowered by reducing the gas pressure in the evaporation system, thereby achieving evaporation and concentration of the solution at low temperature. As the water continues to evaporate, the solution reaches a supersaturated state, and the solute crystallizes and precipitates.

[0003] Existing low-temperature evaporation crystallization devices simply pour the solution into a crystallization tank during crystallization. The solution in the crystallization tank is usually in a static state. In this static state, the solute molecules diffuse slowly and tend to reach supersaturation in local areas (such as the bottom or wall of the tank), forming a large number of tiny microcrystals. Meanwhile, the supersaturation level is low in the upper layer of the solution or in areas far from the tank wall, resulting in slow crystal growth. To address this issue, we propose a low-temperature evaporation crystallization device that facilitates crystal precipitation. Utility Model Content

[0004] The purpose of this invention is to provide a low-temperature evaporation crystallization device that facilitates precipitation, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a low-temperature evaporation crystallization device for easy precipitation, comprising a crystallization tank, wherein a liquid injection port is welded to the top left side of the crystallization tank, a heating ring is provided on the outer wall of the crystallization tank, and a fixed cylinder is welded to the center of the top of the crystallization tank; a control component and a driven component are provided inside the fixed cylinder and inside the crystallization tank, wherein the control component includes:

[0006] A rotating rod, the outer wall of which is provided with protrusions, and a motor is provided on the side of which the motor provides the driving force for rotation of the rotating rod;

[0007] A roller is disposed inside a round rod, and a spring is provided on the outer wall of the round rod, the spring providing a springing force to the round rod when it loses its resistance.

[0008] The disc has holes, which can continuously disturb the solution in the crystallization tank during longitudinal movement, quickly breaking up the uneven state of the upper and lower layers of thin and concentrated solution, and avoiding the formation of too many fine microcrystals.

[0009] Preferably, the rotating rod passes through the fixed cylinder and is rotatably connected to the fixed cylinder. A protrusion is welded to the outer wall of the rotating rod. When the rotating rod rotates on the inner wall of the fixed cylinder, the protrusion fixed to the outer wall of the rotating rod can rotate synchronously.

[0010] Preferably, the side of the rotating rod is fixedly connected to the output shaft of the motor, and the motor is fixedly installed on the outer wall of the fixed cylinder. The output shaft of the motor can drive the rotating rod to perform circular motion on the inner wall of the fixed cylinder.

[0011] Preferably, the roller is rotatably connected to the inner wall of the round rod, the round rod passes through the crystallization tank and is slidably connected to the crystallization tank, and when the roller is abutted, the round rod can move longitudinally inside the crystallization tank.

[0012] Preferably, the top of the crystallization tank is fixedly connected to one end of the spring, and the other end of the spring is fixedly installed on the outer wall of the round rod. The round rod passes through the disc and is fixedly connected to the disc. When the round rod loses its resistance, it will spring up under the action of the spring, and the disc fixed to the outer wall of the round rod can move synchronously.

[0013] Preferably, the driven component includes an arc-shaped circular block, which is welded to the left inner wall of the fixed cylinder. The left inner wall of the fixed cylinder is rotatably connected to the rotating rod. The arc-shaped circular block can limit the rotation speed of the rotating rod.

[0014] Preferably, the outer wall of the rotating rod is hinged to the arc-shaped movable block, the side of the arc-shaped movable block is fixedly connected to one side of the torsion spring, and the other side of the torsion spring is fixedly installed on the outer wall of the rotating rod. When the arc-shaped movable block on the surface of the rotating rod is no longer resisted, it will spring up under the action of the torsion spring.

[0015] Compared with the prior art, this utility model provides a low-temperature evaporation crystallization device that facilitates precipitation, and has the following beneficial effects:

[0016] 1. This low-temperature evaporation crystallization device, which facilitates precipitation, is equipped with a control component. When the output shaft of the motor drives the rotating rod to rotate inside the fixed cylinder, the protrusion fixed to the outer wall of the rotating rod can rotate synchronously. During the rotation, the protrusion will abut against the surface of the roller. When the roller is abutted, the round rod can move longitudinally inside the crystallization tank. When the round rod moves, the disc fixed to the outer wall of the round rod can slide synchronously. The outer wall of the disc has holes, which can continuously disturb the solution in the crystallization tank during the longitudinal movement, quickly breaking up the uneven state of the upper thin layer and the lower thick layer, and avoiding the appearance of too many fine microcrystals.

[0017] 2. This low-temperature evaporation crystallization device, which facilitates precipitation, is equipped with a driven component. When the output shaft of the motor drives the rotating rod to rotate, the arc-shaped movable block will abut against the surface of the arc-shaped circular block. When the arc-shaped movable block is abutted, it can be folded under the action of the torsion spring. Therefore, the rotation speed of the rotating rod can be limited, and the frequency of the protrusion abutting the roller can also be reduced, so as to achieve the purpose of slowly disturbing the solution. Slow disturbance can drive the solution to flow slowly, gradually eliminating the unevenness of the upper layer and the lower layer in the tank. However, it will not cause local turbulence like rapid stirring. It can prevent the local concentration from being too high and generating a large number of microcrystals, and also avoid the decomposition of heat-sensitive materials due to local high temperature, so as to keep the entire crystallization environment stable and mild. Attached Figure Description

[0018] Figure 1 This is a front view structural diagram of the present invention;

[0019] Figure 2 This is a frontal cross-sectional view of the present invention.

[0020] Figure 3 This is a schematic diagram of the control component structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the driven component structure of this utility model;

[0022] Figure 5 This utility model Figure 2 Enlarged schematic diagram of structure A in the middle.

[0023] In the diagram: 1. Crystallization tank; 2. Inlet; 3. Heating ring; 4. Fixed cylinder; 5. Control component; 51. Motor; 52. Rotating rod; 53. Protrusion; 54. Roller; 55. Round rod; 56. Spring; 57. Disc; 58. Hole; 6. Driven component; 61. Arc-shaped block; 62. Arc-shaped movable block; 63. Torsion spring. Detailed Implementation

[0024] like Figures 1-5As shown, this utility model provides a technical solution: a low-temperature evaporation crystallization device for easy precipitation, including a crystallization tank 1. A liquid injection port 2 is welded to the top left side of the crystallization tank 1. A heating ring 3 is provided on the outer wall of the crystallization tank 1. A fixed cylinder 4 is welded to the center of the top of the crystallization tank 1. A control component 5 and a driven component 6 are provided inside the fixed cylinder 4 and the crystallization tank 1. The control component 5 includes: a motor 51, a rotating rod 52, a protrusion 53, a roller 54, a round rod 55, a spring 56, a disc 57, and a hole 58. The outer wall of the rotating rod 52 is provided with a protrusion 53. The motor 51 is provided on the side of the rotating rod 52, providing the driving force for the rotation of the rotating rod 52. The roller 54 is disposed inside the round rod 55. A spring 56 is provided on the outer wall of the rod 55. The spring 56 provides a spring force for the rod 55 when it loses its resistance. A hole 58 is provided on the disc 57. When the rod 52 rotates, the protrusion 53 fixed on the surface of the rod 52 can rotate synchronously. During the rotation of the protrusion 53, it will contact the surface of the roller 54. When the roller 54 is contacted, the rod 55 can move longitudinally in the crystallization tank 1. When the rod 55 moves, the disc 57 fixed on the outer wall of the rod 55 can slide synchronously. The hole 58 is provided on the outer wall of the disc 57, so that the solution in the crystallization tank 1 can be continuously disturbed during the longitudinal movement, which can quickly break up the uneven state of the upper thin layer and the lower thick layer, and avoid the appearance of too many fine microcrystals.

[0025] A rotating rod 52 passes through and is rotatably connected to the fixed cylinder 4. A protrusion 53 is welded to the outer wall of the rotating rod 52. When the rotating rod 52 rotates within the fixed cylinder 4, the protrusion 53 fixed to its outer wall rotates synchronously. The side of the rotating rod 52 is fixedly connected to the output shaft of the motor 51. The motor 51 is fixedly mounted on the outer wall of the fixed cylinder 4. The output shaft of the motor 51 can drive the rotating rod 52 to perform circular motion within the fixed cylinder 4. A roller 54 is rotatably connected to the inner wall of a round rod 55. The round rod 55 passes through and is slidably connected to the crystallization tank 1. When the roller 54 is pressed against the crystallization tank 1, the round rod 55 can move longitudinally within the crystallization tank 1. The top of the crystallization tank 1 is fixedly connected to one end of the spring 56, and the other end of the spring 56 is fixedly installed on the outer wall of the round rod 55. The round rod 55 passes through the disc 57 and is fixedly connected to the disc 57. When the round rod 55 loses its resistance, it will spring up under the action of the spring 56, and the disc 57 fixed to the outer wall of the round rod 55 can move synchronously. The driven component 6 includes an arc-shaped block 61, which is welded to the inner left wall of the fixed cylinder 4. The inner left wall of the fixed cylinder 4 is rotatably connected to the rotating rod 52. The arc-shaped block 61 can limit the rotation speed of the rotating rod 52. The outer wall of the rotating rod 52 is hinged to the arc-shaped movable block 62. The side of the arc-shaped movable block 62 is fixedly connected to one side of the torsion spring 63, and the other side of the torsion spring 63 is fixedly installed on the outer wall of the rotating rod 52. When the arc-shaped movable block 62 on the surface of the rotating rod 52 is no longer resisted, it will spring up under the action of the torsion spring 63.

[0026] In this invention, during use, the solution to be evaporated and crystallized is poured into the liquid inlet 2 at the top of the crystallization tank 1. After pouring, hot water is poured into the water inlet at the top of the heating ring 3. The hot water heats the solution in the crystallization tank 1. During the heating process, the motor 51 is started simultaneously. The output shaft of the motor 51 drives the rotating rod 52 to rotate inside the fixed cylinder 4. When the rotating rod 52 rotates, the protrusion 53 fixed on the surface of the rotating rod 52 rotates synchronously. During the rotation of the protrusion 53, it will contact the surface of the roller 54. When the roller 54 is contacted, the round rod 55 can move longitudinally inside the crystallization tank 1. When the round rod 55 moves, the disc 57 fixed on the outer wall of the round rod 55 can slide synchronously. The outer wall of the disc 57 has holes 58, which can continuously disturb the solution in the crystallization tank 1 during the longitudinal movement, quickly breaking up the uneven state of the upper thin layer and the lower thick layer, and avoiding too many fine particles. The appearance of crystals causes the roller 54, which loses its resistance, and the round rod 55 to spring out from the crystallization tank 1 under the action of the spring 56. During the rotation of the rotating rod 52, the arc-shaped movable block 62 hinged to the surface of the rotating rod 52 will abut against the surface of the arc-shaped round block 61. When the arc-shaped movable block 62 is abutted, it can be folded under the action of the torsion spring 63, thus limiting the rotation speed of the rotating rod 52. Therefore, the frequency of the protrusion 53 abutting against the roller 54 can also be reduced, achieving the purpose of slowly disturbing the solution. Slow disturbance can drive the solution to flow slowly, gradually eliminating the unevenness of the upper layer being thin and the lower layer being thick in the tank. However, it will not cause local turbulence like rapid stirring. It can prevent the local concentration from being too high and producing a large number of microcrystals, and also avoid the decomposition of heat-sensitive materials caused by local high temperature. It keeps the entire crystallization environment stable and mild. After a certain period of disturbance, wait for crystallization, and then open the feed pipe to precipitate a small part of the solution and crystals from the crystallization tank 1.

[0027] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A low-temperature evaporation crystallization apparatus for easy precipitation, comprising a crystallization tank (1), characterized in that: A liquid injection port (2) is welded to the top left side of the crystallization tank (1). A heating ring (3) is provided on the outer wall of the crystallization tank (1). A fixed cylinder (4) is welded to the center of the top of the crystallization tank (1). A control component (5) and a driven component (6) are provided inside the fixed cylinder (4) and the crystallization tank (1). The control component (5) includes: A rotating rod (52) is provided with a protrusion (53) on its outer wall, and a motor (51) is provided on the side of the rotating rod (52) to provide a driving force for the rotation of the rotating rod (52); A roller (54) is disposed inside a round rod (55), and a spring (56) is disposed on the outer wall of the round rod (55), the spring (56) providing a springing force for the round rod (55) when it loses its resistance. A disc (57) has holes (58) on it.

2. The low-temperature evaporation crystallization apparatus for easy precipitation according to claim 1, characterized in that: The rotating rod (52) passes through the fixed cylinder (4) and is rotatably connected to the fixed cylinder (4). The outer wall of the rotating rod (52) is welded with a protrusion (53).

3. The low-temperature evaporation crystallization apparatus for easy precipitation according to claim 2, characterized in that: The side of the rotating rod (52) is fixedly connected to the output shaft of the motor (51), and the motor (51) is fixedly installed on the outer wall of the fixed cylinder (4).

4. The low-temperature evaporation crystallization apparatus for easy precipitation according to claim 1, characterized in that: The roller (54) is rotatably connected to the inner wall of the round rod (55), which passes through the crystallization tank (1) and is slidably connected to the crystallization tank (1).

5. The low-temperature evaporation crystallization apparatus for easy precipitation according to claim 4, characterized in that: The top of the crystallization tank (1) is fixedly connected to one end of the spring (56), and the other end of the spring (56) is fixedly installed on the outer wall of the round rod (55). The round rod (55) passes through the disc (57) and is fixedly connected to the disc (57).

6. The low-temperature evaporation crystallization apparatus for easy precipitation according to claim 1, characterized in that: The driven component (6) includes an arc-shaped circular block (61) which is welded to the left inner wall of the fixed cylinder (4), and the left inner wall of the fixed cylinder (4) is rotatably connected to the rotating rod (52).

7. The low-temperature evaporation crystallization apparatus for easy precipitation according to claim 1, characterized in that: The outer wall of the rotating rod (52) is hinged to the arc-shaped movable block (62), the side of the arc-shaped movable block (62) is fixedly connected to one side of the torsion spring (63), and the other side of the torsion spring (63) is fixedly installed on the outer wall of the rotating rod (52).

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