Novel continuous condensation crystallizer with blades

Abstract

The utility model relates to the technical field of crystallizers, in particular to a novel continuous condensation crystallizer with blades, which comprises a condensation crystallizer body, the condensation crystallizer body comprises a crystallizer cylinder, two ends of the crystallizer cylinder are provided with a front end plate and a rear end plate in a matching manner and are sealed by the front end plate and a rear short plate end plate, the front end plate is provided with a material outlet, and the rear short plate end plate is provided with a material outlet. The utility model provides a novel continuous condensation crystallizer with blades, which is characterized in that a front end plate is arranged on the crystallizer barrel, a rear end plate is arranged on the crystallizer barrel, a stirring driving structure is arranged on the rear end plate, a plurality of groups of hollow cooling plates are arranged in the crystallizer barrel in a combined manner, and a material inlet is arranged on the side wall of the crystallizer barrel. And the steam heat tracing pipeline is arranged at the bottom of the U-shaped horizontal long groove of the crystallizer, so that the loss in the material changing process is reduced, the cooling efficiency of the materials in the crystallization process is greatly improved, and real rapid cooling crystallization is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of crystallizers, in particular to a novel continuous condensation crystallizer with blades. Background Art

[0002] At present, the most commonly used in my country is the kettle type crystallizer, which has many disadvantages:

[0003] 1. Due to jacket cooling, crystallization starts from the kettle wall first, so that the crystals first form on the kettle wall. In severe cases, thick crystals may form on the kettle wall, greatly affecting the heat transfer efficiency. Although the problem of crystals forming on the kettle wall can be reduced by increasing the stirring speed, crystallization is also limited by the stirring speed in many cases. If the stirring speed is too fast, the grain size will be greatly reduced, affecting the next step of filtering and washing operations, and it is even more unsuitable for occasions where larger grains are desired. In addition, in kettle-type stirring crystallization, it is generally difficult for the stirring paddle to scrape the wall, so it is difficult to scrape off the grains formed on the kettle wall, affecting the heat transfer effect.

[0004] 2. Ordinary crystallization kettles often have better crystallization effects near the external cooling kettle wall, while the material near the center of the kettle crystallizes very slowly, causing uneven grains and a very slow overall crystallization speed.

[0005] 3. Although the cooling area can be greatly increased for the crystallization kettle with cooling coils added inside the kettle, the crystals will first form outside the static coils during crystallization, which seriously affects the heat transfer effect. In addition, the addition of the coils will greatly affect the stirring effect of the crystallization kettle, and wall scraping stirring is even more impossible. After a large number of crystals are formed on the kettle wall and the coils, the heat transfer effect is even worse, and the crystal slurry is not easy to be discharged smoothly and completely.

[0006] 4. Since the bottom of the crystallization kettle is often a standard elliptical head, for crystallization kettles with high material concentration and more crystalline solids, the discharge is often not complete, and some crystalline solids will remain in the kettle and cannot be discharged, affecting the output and energy consumption. Utility Model Content

[0007] In order to solve some problems existing in the above-mentioned prior art, the utility model provides a novel continuous condensation crystallizer with blades to solve the deficiencies existing in the prior art.

[0008] To achieve the above-mentioned purpose, the utility model provides a new type of continuous condensation crystallizer with blades, including a condensation crystallizer body, the condensation crystallizer body includes a crystallizer barrel, the two ends of the crystallizer barrel are cooperated with a front end plate and a rear end plate, and are closed by the front end plate and the rear short plate end plate, the front end plate is provided with a material outlet, the rear end plate is provided with a stirring drive structure, a plurality of groups of hollow cooling plates are arranged in combination in the crystallizer barrel, and a material inlet is provided on the side wall of the crystallizer barrel.

[0009] As a further improvement of the present invention, in order to ensure the stability of the central stirring shaft installation structure, the stirring drive structure includes a central stirring shaft, the central stirring shaft is cooperated with a bearing seat, the central stirring shaft is fixedly mounted on the front end plate and the rear end plate through the bearing seat, the central stirring shaft is connected with a driving motor, and the central stirring shaft is interspersed with all the hollow cooling plates arranged on the crystallizer barrel.

[0010] As a further improvement of the utility model, in order to ensure the scraping effect of the stirring propeller blades on the hollow cooling plate, four groups of stirring propeller blades are arranged on the central stirring shaft, one side of the stirring propeller blades is straightly arranged and leans against the hollow cooling plate, and a scraper is arranged on the end of each group of the stirring propeller blades, and the scraper is bent and reinforced with a rib plate.

[0011] As a further improvement of the present invention, in order to facilitate sweating and purification of crystals, the crystallizer barrel is arranged in a horizontal long trough shape, a steam heating pipeline is arranged at the bottom of the crystallizer barrel, a flow-blocking separation disc is installed between every two hollow cooling plates, and the crystallizer barrel is provided with a drain port.

[0012] As a further improvement of the utility model, in order to facilitate continuous crystallization, a joint water pipe flange is provided on the hollow cooling plate, and the joint water pipe flanges on adjacent hollow cooling plates are connected through pipelines. A deep cooling water pipeline, a general cooling water pipeline and a circulating water pipeline are provided on the side of the crystallizer barrel on the material inlet side.

[0013] As a further improvement of the present invention, in order to ensure that the installation structure of the stirring propulsion type blades is stable and reliable, each group of the stirring propulsion type blades and the central stirring shaft are installed in the form of keyways and clamps.

[0014] When the utility model is working, the condensation crystallizer body includes a crystallizer barrel, and the two ends of the crystallizer barrel are cooperated with a front end plate and a rear end plate, and are closed by the front end plate and the rear short plate end plate. The front end plate is provided with a material outlet, and the rear end plate is provided with a stirring drive structure. A plurality of groups of hollow cooling plates are arranged in combination in the crystallizer barrel, and a material inlet is provided on the side wall of the crystallizer barrel. The crystallizer barrel is arranged in a horizontal long trough shape, and a steam heating pipeline is provided at the bottom of the crystallizer barrel. A deep cold water pipeline, a general cold water pipeline and a circulating water pipeline are provided on the side of the crystallizer barrel on the material inlet side, and each group of stirring propulsion blades and the central stirring shaft are installed in the form of keyways and clamps.

[0015] The beneficial effects of the utility model are as follows: the utility model provides a novel continuous condensation crystallizer with blades, the crystallizer is provided with hollow cooling plates inside, there is no cooling dead corner, and the crystallization of the material is guaranteed to be uniform; a steam heating pipeline is provided at the bottom of the U-shaped horizontal long trough of the crystallizer, so as to reduce the loss in the material replacement process, and no additional steam heating is required during the maintenance process; the hollow cooling plates are provided with stirring and propulsion blades, so that the cooling efficiency of the material in the crystallization process is greatly improved, and real rapid cooling crystallization is realized; since there is always a wall scraping and cleaning effect in any process of crystallization, continuous crystallization is realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings:

[0017] Figure 1 It is a structural diagram of the utility model.

[0018] Figure 2 It is a side structural diagram of the utility model.

[0019] Figure 3 This is a top view of the structure of the utility model.

[0020] Figure 4 This is a structural diagram of the installation of the internal hollow cooling plate of the utility model.

[0021] Among them, 1 crystallizer barrel, 2 front end plate, 3 rear end plate, 4 material outlet, 5 stirring drive structure, 501 central stirring shaft, 502 bearing seat, 503 driving motor, 504 stirring propulsion blade, 6 hollow cooling plate, 7 material inlet, 8 steam heating pipeline, 9 flow-blocking separation disc, 10 drain port, 11 joint water pipe flange, 12 deep cooling water pipeline, 13 general cooling water pipeline, 14 circulating water pipeline. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solution in this application, Figure 1-4 The present invention is further described in the following embodiments, which are only used to more clearly illustrate the technical solution of the present invention and are not intended to limit the protection scope of the present invention.

[0023] like Figure 1-4A new type of continuous condensation crystallizer with blades shown in the figure includes a condensation crystallizer body, and the condensation crystallizer body includes a crystallizer barrel 1. The two ends of the crystallizer barrel 1 are cooperated with a front end plate 2 and a rear end plate 3, and are closed by the front end plate 2 and the rear short plate end plate. The front end plate 2 is provided with a material outlet 4, and the rear end plate 3 is provided with a stirring drive structure 5. A plurality of groups of hollow cooling plates 6 are arranged in combination in the crystallizer barrel 1, and a material inlet 7 is provided on the side wall of the crystallizer barrel 1.

[0024] The stirring drive structure 5 includes a central stirring shaft 501, and the central stirring shaft 501 is equipped with a bearing seat 502. The central stirring shaft 501 is fixedly installed on the front end plate 2 and the rear end plate 3 through the bearing seat 502. The central stirring shaft 501 is connected to a driving motor 503. The central stirring shaft 501 is interspersed with all the hollow cooling plates 6 arranged on the crystallizer barrel 1.

[0025] Four groups of stirring propeller blades 504 are arranged on the central stirring shaft 501. One side of the stirring propeller blades 504 is arranged straight and is arranged against the hollow cooling plate 6. A scraper is arranged on the end of each group of stirring propeller blades 504. The scraper is bent and reinforced with a rib plate.

[0026] The crystallizer barrel 1 is arranged in a horizontal long trough shape, a steam heating pipeline 8 is arranged at the bottom of the crystallizer barrel 1, a flow-blocking separation disc 9 is installed between every two hollow cooling plates 6, and the crystallizer barrel 1 is provided with a drain port 10.

[0027] The hollow cooling plate 6 is provided with a joint water pipe flange 11, and the joint water pipe flanges 11 on adjacent hollow cooling plates 6 are connected through pipelines. A deep cooling water pipeline 12, a general cooling water pipeline 13 and a circulating water pipeline 14 are provided on the side of the crystallizer barrel 1 on one side of the material inlet 7.

[0028] Each group of the stirring propulsion blades 504 and the central stirring shaft 501 are installed in the form of keyways and clamps.

[0029] When the utility model is working, the crystallizer barrel 1 is arranged in a horizontal long trough shape, and a plurality of groups of hollow cooling plates 6 are arranged in combination in the crystallizer barrel 1. The central stirring shaft 501 passes through all the cooling plates, and a flow-blocking separation disc 9 is installed between every two hollow cooling plates 6. One side of the four groups of stirring propulsion blades 504 is arranged against the hollow cooling plates 6, which has a wall cleaning effect on all the hollow cooling plates 6, thereby greatly improving the heat transfer and cooling efficiency.

[0030] The material enters the crystallizer barrel 1 from the material inlet 7, and is slowly pushed forward in a circuitous manner to the material outlet 4 at the other end for overflow discharge. In the process of the material moving forward in the crystallizer barrel 1, the material will fully contact the hollow cooling plate 6 inside the crystallizer barrel 1, and the deep cold water pipeline 12, the general cold water pipeline 13 and the circulating water pipeline 14 quickly cool the material to achieve truly rapid and continuous crystallization. Through the rapid cooling of the hollow plates inside the crystallizer barrel 1, crystals are formed between all the hollow cooling plates 6, and four groups of stirring and propulsion blades 504 scrape and clean the hollow cooling plates 6. The stirring and propulsion blades 504 always have the function of scraping and cleaning the walls during any process of crystallization. The material is slowly pushed forward to the other end and finally overflows and is discharged.

[0031] The present utility model is not limited to the above-mentioned embodiments. On the basis of the technical solution disclosed in the present utility model, technicians in this field can make some substitutions and deformations to some technical features therein according to the disclosed technical content without creative labor, and these substitutions and deformations are all within the protection scope of the present utility model.

Claims

1. A novel bladed continuous condensation crystallizer, comprising a condensation crystallizer body, characterized in that: The condensation crystallizer body comprises a crystallizer barrel (1), and the two ends of the crystallizer barrel (1) are provided with a front end plate (2) and a rear end plate (3), and are closed by the front end plate (2) and the rear short plate end plate. The front end plate (2) is provided with a material outlet (4), and the rear end plate (3) is provided with a stirring drive structure (5). A plurality of groups of hollow cooling plates (6) are arranged in combination in the crystallizer barrel (1), and a material inlet (7) is provided on the side wall of the crystallizer barrel (1).

2. A novel bladed continuous condensation crystallizer according to claim 1, characterized in that: The stirring drive structure (5) comprises a central stirring shaft (501), the central stirring shaft (501) is provided with a bearing seat (502), the central stirring shaft (501) is fixedly mounted on the front end plate (2) and the rear end plate (3) via the bearing seat (502), the central stirring shaft (501) is connected with a driving motor (503), and the central stirring shaft (501) is interlaced with all the hollow cooling plates (6) provided on the crystallizer barrel (1).

3. A novel bladed continuous condensation crystallizer according to claim 2, characterized in that: Four groups of stirring propeller blades (504) are arranged on the central stirring shaft (501), one side of the stirring propeller blades (504) is arranged straight and is arranged against the hollow cooling plate (6), and a scraper is arranged on the end of each group of stirring propeller blades (504), and the scraper is bent and reinforced with a rib plate.

4. A novel bladed continuous condensation crystallizer according to claim 1, characterized in that: The crystallizer barrel (1) is arranged in a horizontal long trough shape, a steam tracing pipeline (8) is arranged at the bottom of the crystallizer barrel (1), a flow-blocking separation disc (9) is installed between every two hollow cooling plates (6), and the crystallizer barrel (1) is provided with a drain port (10).

5. A novel bladed continuous condensation crystallizer according to claim 1, characterized in that: The hollow cooling plate (6) is provided with a joint water pipe flange (11), and the joint water pipe flanges (11) on adjacent hollow cooling plates (6) are connected through pipelines. A deep cooling water pipeline (12), a general cooling water pipeline (13) and a circulating water pipeline (14) are provided on the side of the crystallizer barrel (1) on the side of the material inlet (7).

6. A novel bladed continuous condensation crystallizer according to claim 3, characterized in that: Each group of the stirring propulsion blades (504) and the central stirring shaft (501) are installed in the form of a keyway and a clamp.

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