CN214714476U

CN214714476U - Evaporative crystallizer

Info

Publication number: CN214714476U
Application number: CN202120870371.0U
Authority: CN
Inventors: 王秦轩; 黄建翔
Original assignee: Shanghai Dingtai Evaporator Co ltd
Current assignee: Shanghai Dingtai Evaporator Co ltd
Priority date: 2021-04-25
Filing date: 2021-04-25
Publication date: 2021-11-16
Anticipated expiration: 2031-04-25

Abstract

The application relates to an evaporation crystallizer, including the evaporation crystallizer, the evaporation crystallizer is provided with the filter that separates the inner chamber of evaporation crystallizer for crystallization chamber and circulation chamber, the lateral wall of evaporation crystallizer is provided with the heating intermediate layer that the crystallization chamber carries out the heating, is provided with heating medium in the heating intermediate layer, and the evaporation crystallizer is provided with feed through in the inlet pipe of crystallization chamber, blast pipe and feeds through in the circulation pipe in circulation chamber, and the other end of circulation pipe communicates in the inlet pipe, and the circulation pipe is provided with the circulating pump that will circulate the material pump of intracavity and deliver to the inlet pipe. The method has the advantage of improving the crystallization precision.

Description

Evaporative crystallizer

Technical Field

The application relates to the technical field of evaporative crystallization, in particular to an evaporative crystallizer.

Background

The crystallization separation technology is widely applied in the modern chemical industry, and evaporative crystallization is a common method in the crystallization separation technology.

The crystallizer is a groove-shaped container, the wall of the crystallizer is provided with a jacket or a coil pipe is arranged in the crystallizer and used for heating or cooling the solution in the groove, and the evaporative crystallizer is a container which evaporates the mixed solution dissolved with the materials to remove the redundant solvent so as to separate out the materials by crystallization and separation. The material mixed liquid enters the evaporation crystallization chamber after being preheated, the water vapor and the material mixed liquid are separated, the water vapor is discharged outside, and after the water vapor and the material are separated, the material mixed liquid is further heated for crystallization.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: the evaporative crystallizer in the prior art can not screen the grain size of the crystals, has low crystallization precision and needs further improvement.

SUMMERY OF THE UTILITY MODEL

In order to improve the crystallization precision, the application provides an evaporative crystallizer.

The application provides an evaporative crystallizer adopts following technical scheme:

the utility model provides an evaporative crystallizer, includes the evaporation crystallizer, the evaporation crystallizer is provided with the filter that separates the inner chamber of evaporation crystallizer for crystallization chamber and circulation chamber, the lateral wall of evaporation crystallizer is provided with the heating intermediate layer that the crystallization chamber carries out the heating, is provided with heating medium in the heating intermediate layer, and the evaporation crystallizer is provided with the inlet pipe, the blast pipe that communicate in the crystallization chamber and communicates in the circulation pipe in circulation chamber, and the other end of circulation pipe communicates in the inlet pipe, and the circulation pipe is provided with the circulating pump that takes the material of circulation intracavity to the inlet pipe.

Through adopting above-mentioned technical scheme, material mixed liquid preheats the back and gets into the crystallization intracavity through arranging the material pipe and carry out the evaporation crystallization, and vapor passes through the blast pipe and discharges, and the great crystal body of particle diameter after the evaporation crystallization is blockked by the filter and is filtered, and the crystal body that the particle diameter is less than the sieve mesh aperture of filter falls to the circulation intracavity, and the circulating pump passes through the circulating pipe pump sending to the inlet pipe with the crystal body in the circulation intracavity and carries out the crystallization once more for the crystal body reaches the settlement particle diameter, improves the crystallization accuracy.

Preferably, the filter includes fixed connection in the first otter board of evaporation crystallizer inner wall and slides and connect in the second otter board of evaporation crystallizer inner wall, and first otter board is located the top of second otter board, first mesh and second mesh have been seted up respectively to first otter board and second otter board, and first mesh communicates in the second mesh, thereby the evaporation crystallizer inner wall is provided with the regulating part of the sieve mesh aperture of adjusting the second otter board position of sliding and adjusting the filter.

Through adopting above-mentioned technical scheme, first otter board is fixed, and second otter board swing joint in evaporation crystallizer adjusts the second otter board through the regulating part and slides to adjust the sieve mesh aperture of filter, realize filtering the screening to the crystal solid of different particle sizes.

Preferably, the adjusting piece is a cylinder with a cylinder body fixedly connected to the side wall of the evaporative crystallization tank, and a piston rod of the cylinder is fixedly connected to the side wall of the second screen plate.

By adopting the technical scheme, the sliding of the second screen plate is realized by the extension of the piston rod of the air cylinder, the reaction speed is high, the structure is simple, and the operation is convenient.

Preferably, the side wall of the crystallization cavity is provided with a discharge opening and a discharge pipe connected to the discharge opening.

Through adopting above-mentioned technical scheme, set up and arrange the material pipe, be convenient for will pile up the crystalline solid discharge in the crystallization chamber.

Preferably, the crystallization cavity is provided with a material pushing device for pushing the crystals on the filter plate towards the direction close to the discharge port.

Through adopting above-mentioned technical scheme, will pile up through blevile of push and keep away from the crystalline substance material propelling movement of arranging material pipe one side to being close to discharge outlet department on the filter, and then effectively improve the thoroughness of arranging material efficiency and arranging the material.

Preferably, the material pushing device comprises a material pushing sliding plate connected to the inner wall of the crystallization cavity in a sliding manner and a driving assembly for driving the material pushing sliding plate to move in a sliding manner.

Through adopting above-mentioned technical scheme, drive through drive assembly and push away the material slide and slide towards being close to the bin outlet direction to the realization pushes away the material operation to the crystalline solid of piling up on the filter, and then effectively improves the thoroughness of arranging material efficiency and row material.

Preferably, the inner wall of the crystallization cavity is fixedly connected with at least two limiting guide rods, and the limiting guide rods penetrate through the material pushing sliding plate.

Through adopting above-mentioned technical scheme, set up spacing guide bar, realize pushing away the slidingtype assembly of material slide and evaporation crystal body, spacing guide bar is provided with two, and the restriction pushes away the relative rotation of material slide and evaporation crystallizer.

Preferably, the driving assembly comprises a pushing screw rod rotatably connected to the inner wall of the crystallization cavity and a pushing motor driving the pushing screw rod to rotate, the pushing screw rod is threaded through the pushing sliding plate, and the axis direction of the pushing screw rod is parallel to the sliding direction of the pushing sliding plate.

Through adopting above-mentioned technical scheme, pushing away the material motor and driving and pushing away the material lead screw and rotate to realize pushing away the material slide board and carrying out the sliding motion along the axis direction that pushes away the material slide, thereby realize pushing away the material operation to the crystalline solid that piles up on the filter.

To sum up, the utility model discloses following beneficial effect has:

1. the material mixed liquid enters the crystallization cavity through the discharge pipe after being preheated for evaporation crystallization, water vapor is discharged through the exhaust pipe, crystals with larger grain sizes after evaporation crystallization are blocked and filtered by the filter plate, crystals with grain sizes smaller than the mesh aperture of the filter plate fall into the circulation cavity, and the circulation pump pumps the crystals in the circulation cavity to the feed pipe through the circulation pipe for recrystallization, so that the crystals reach the set grain sizes, and the crystallization precision is improved;

2. the first screen plate is fixed, the second screen plate is movably connected to the evaporative crystallization tank, and the sliding of the second screen plate is adjusted through the adjusting piece, so that the mesh aperture of the filter plate is adjusted, and crystals with different particle sizes are filtered and screened;

3. the driving assembly drives the material pushing sliding plate to slide towards the direction close to the material discharging opening, so that the material pushing operation of crystal accumulated on the filter plate is realized, and the material discharging efficiency and the material discharging thoroughness are effectively improved.

Drawings

FIG. 1 is a schematic view of the overall structure of an evaporative crystallizer;

FIG. 2 is a schematic view of the internal structure of an evaporative crystallization tank;

FIG. 3 is a schematic structural view of a filter plate;

fig. 4 is a schematic structural view of the pusher.

In the figure, 1, an evaporation crystallizer; 11. a crystallization cavity; 12. a circulation chamber; 13. heating the interlayer; 14. a feed pipe; 15. a first flow control valve; 16. a circulation pipe; 17. a circulation pump; 18. an exhaust pipe; 19. a discharge pipe; 10. a second flow control valve; 2. a filter plate; 21. a first screen plate; 22. a second screen plate; 23. a first mesh; 24. a second mesh; 25. a cylinder; 31. an oil inlet pipe; 32. an oil outlet pipe; 33. heating the oil tank; 4. a material pushing device; 41. a material pushing sliding plate; 42. a drive assembly; 421. pushing a material screw rod; 422. a material pushing motor; 43. and limiting guide rods.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses an evaporative crystallizer, refer to fig. 1, fig. 2, including evaporative crystallization jar 1, evaporative crystallization jar 1 is provided with and separates the inner chamber of evaporative crystallization jar 1 for crystallization chamber 11 and circulation chamber 12's filter 2, and the face of filter 2 is the level setting, and crystallization chamber 11 is located the top in circulation chamber 12.

Referring to fig. 2, a heating interlayer 13 for heating the crystallization cavity 11 is disposed on the sidewall of the evaporation crystallization tank 1, and a heating medium is disposed in the heating interlayer 13, and the heating medium is heating oil. The outer wall of the evaporative crystallization tank 1 is connected with an oil inlet pipe 31 communicated with the lower part of the heating interlayer 13, a circulating oil pipe communicated with the upper part of the heating interlayer 13 and a heating oil tank 33, one end of the oil inlet pipe 31 is connected with the heating oil tank 33, and one end of the circulating oil pipe is connected with the heating oil tank 33.

Referring to FIGS. 1 and 2, the evaporative crystallization tank 1 is provided with a feed pipe 14 communicating with the top of the side wall of the crystallization chamber 11, an exhaust pipe 18 communicating with the top wall of the crystallization chamber 11, and a circulation pipe 16 communicating with the side wall of the circulation chamber 12, the other end of the circulation pipe 16 communicating with the feed pipe 14, the feed pipe 14 being provided with a first flow control valve 15, and the circulation pipe 16 being provided with a circulation pump 17 for pumping the material in the circulation chamber 12 to the feed pipe 14. The side wall of the crystallization chamber 11 is provided with a discharge opening and a discharge pipe 19 connected to the discharge opening, and the discharge pipe 19 is provided with the second flow control valve 10.

Referring to fig. 2 and 3, the filter plate 2 is provided with sieve pores, and the filter plate 2 comprises a first screen plate 21 fixedly connected to the inner wall of the evaporative crystallization tank 1 and a second screen plate 22 connected to the inner wall of the evaporative crystallization tank in a sliding manner. The first screen plate 21 is located above the second screen plate 22, the lower end face of the first screen plate 21 is attached to the upper end face of the second screen plate 22, the first screen plate 21 and the second screen plate 22 are respectively provided with a first mesh 23 and a second mesh 24, and the first mesh 23 is communicated with the second mesh 24 to form a screen hole. Thereby the inner wall of the evaporation crystallizer 1 is provided with the regulating part for regulating the sliding position of the second screen plate 22 and regulating the mesh aperture of the filter plate 2, the regulating part is a cylinder body fixedly connected with the cylinder 25 on the outer side wall of the evaporation crystallizer 1, and the piston rod of the cylinder 25 penetrates through the side wall of the evaporation crystallizer 1 and the end part is fixedly connected with the side wall of the second screen plate 22.

Referring to fig. 2 and 4, the crystallization chamber 11 is provided with a material pushing device 4 for pushing the crystals on the filter plate 2 toward a direction close to the discharge port, the material pushing device 4 includes a material pushing sliding plate 41 connected to the inner wall of the crystallization chamber 11 in a sliding manner and a driving component 42 for driving the material pushing sliding plate 41 to move in a sliding manner, and the lower end surface of the material pushing sliding plate 41 abuts against the upper end surface of the first screen plate 21. The inner wall of the crystallization cavity 11 is fixedly connected with at least two limiting guide rods 43, the number of the limiting guide rods 43 is two in the embodiment, and the limiting guide rods 43 penetrate through the material pushing sliding plate 41.

Referring to fig. 4, the driving assembly 42 includes a material pushing screw 421 rotatably connected to the inner wall of the crystallization cavity 11 and a material pushing motor 422 for driving the material pushing screw 421 to rotate, the material pushing screw 421 is threaded through the material pushing sliding plate 41, the axial direction of the material pushing screw 421 is parallel to the axial direction of the limiting guide rod 43, the material pushing motor 422 is fixedly connected to the outer wall of the evaporation crystallization tank 1, and the output shaft of the material pushing motor 422 is coaxially and fixedly connected to the material pushing screw 421.

The implementation principle of an evaporative crystallizer in the embodiment of the application is as follows: the material mixed liquid enters the crystallization cavity 11 through the discharge pipe 19 after being preheated for evaporation crystallization, water vapor is discharged through the exhaust pipe 18, crystals with the particle size larger than the aperture of the filter plate 2 after evaporation crystallization are blocked and filtered by the filter plate 2, crystals with the particle size smaller than the aperture of the sieve of the filter plate 2 fall into the circulation cavity 12, the circulating pump 17 pumps the crystals in the circulation cavity 12 to the feeding pipe 14 through the circulating pipe 16 for recrystallization, the crystals reach the set particle size, and the crystallization precision is improved.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. An evaporative crystallizer, characterized by: including evaporation crystallizer (1), evaporation crystallizer (1) is provided with filter (2) for separating the inner chamber of evaporation crystallizer (1) for crystallization chamber (11) and circulation chamber (12), is provided with the sieve mesh on filter (2), the lateral wall of evaporation crystallizer (1) is provided with heats intermediate layer (13) that carry out the heating to crystallization chamber (11), is provided with heating medium in heating intermediate layer (13), and evaporation crystallizer (1) is provided with feed pipe (14), blast pipe (18) that communicate in crystallization chamber (11) and communicates in circulation pipe (16) of circulation chamber (12), and the other end of circulation pipe (16) communicates in feed pipe (14), and circulation pipe (16) are provided with and pump circulating pump (17) to feed pipe (14) with the material in circulation chamber (12).

2. An evaporative crystallizer as defined in claim 1, wherein: filter (2) including fixed connection in the first otter board (21) of evaporation crystallizer (1) inner wall with slide and connect in the second otter board (22) of evaporation crystallizer inner wall, first otter board (21) are located the top of second otter board (22), first mesh (23) and second mesh (24) have been seted up respectively to first otter board (21) and second otter board (22), first mesh (23) communicate in second mesh (24), thereby evaporation crystallizer (1) inner wall is provided with the regulating part of adjusting the sieve mesh aperture of second otter board (22) position of sliding.

3. An evaporative crystallizer as defined in claim 2, wherein: the adjusting piece is a cylinder (25) with a cylinder body fixedly connected to the side wall of the evaporative crystallization tank (1), and a piston rod of the cylinder (25) is fixedly connected to the side wall of the second screen plate (22).

4. An evaporative crystallizer as defined in claim 1, wherein: the side wall of the crystallization cavity (11) is provided with a discharge opening and a discharge pipe (19) connected with the discharge opening.

5. An evaporative crystallizer as claimed in claim 4, wherein: the crystallization cavity (11) is provided with a material pushing device (4) which pushes crystals on the filter plate (2) towards the direction close to the discharge port.

6. An evaporative crystallizer as claimed in claim 5, wherein: the material pushing device (4) comprises a material pushing sliding plate (41) connected to the inner wall of the crystallization cavity (11) in a sliding mode and a driving assembly (42) driving the material pushing sliding plate (41) to move in a sliding mode.

7. An evaporative crystallizer as claimed in claim 5, wherein: the inner wall of the crystallization cavity (11) is fixedly connected with at least two limiting guide rods (43), and the limiting guide rods (43) penetrate through the material pushing sliding plate (41).

8. An evaporative crystallizer as claimed in claim 6, wherein: the driving assembly (42) comprises a pushing screw rod (421) which is rotatably connected to the inner wall of the crystallization cavity (11) and a pushing motor (422) which drives the pushing screw rod (421) to rotate, the pushing screw rod (421) is threaded through the pushing sliding plate (41), and the axial direction of the pushing screw rod (421) is parallel to the sliding direction of the pushing sliding plate (41).