Crystallization and purification equipment for decabromodiphenyl ethane

Abstract

The utility model discloses decabromodiphenylethane crystallization and purification equipment, which relates to the technical field of decabromodiphenylethane production and comprises an outer shell, and a cooling crystallization mechanism is mounted on the inner side of the outer shell. According to the device provided by the utility model, cakes attached to the inner wall of the cooling shell and the inner wall of the guide cylinder are respectively scraped, and attached crystals are scraped back into a solution in time, so that the crystallization process is uniformly performed in the solution, and the crystallization efficiency and the product uniformity are ensured; the driving motor works to drive the connecting shaft to rotate, the spiral blade is spirally arranged outside the connecting shaft, materials are pushed to move in the direction of the connecting shaft, the materials circularly flow in the whole container, the stirring efficiency is improved, the stirring blade and the stirring plate move to stir the interior of the cooling shell at the same time, and uniform mixing of solutions is kept; the crystal purity is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to decabromodiphenyl ethane production technical field especially relates to a decabromodiphenyl ethane crystallization purification equipment. BACKGROUND

[0002] Decabromodiphenyl ethane is a kind of widely used broad-spectrum additive flame retardant, is white or light yellow powder, in the production process of decabromodiphenyl ethane, decabromodiphenyl ethane is crystallized from solution and is precipitated to form pure crystal product using crystallization purification equipment.

[0003] In prior art, when decabromodiphenyl ethane is crystallized, solution is cooled by cooling medium, so that it is precipitated, and in the crystallization process, the crystal precipitated is easily agglomerated and adsorbed on the inner wall of container, the adhesion of crystal on the side wall is more and more, not only the amount of solute available for crystallization in solution is reduced, but also the crystal adhered on the side wall can form uneven crystallization layer, which affects the overall crystallization effect and product quality. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the problem of the prior art that the crystal precipitated is easily agglomerated and adsorbed on the inner wall of container in the crystallization process, and proposes a decabromodiphenyl ethane crystallization purification equipment.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a decabromodiphenyl ethane crystallization purification equipment, including outer shell, the inner side of outer shell is installed with cooling crystallization mechanism, the cooling crystallization mechanism includes cooling shell, the inner side of cooling shell is installed with anti-blocking mechanism, the anti-blocking mechanism includes drive motor, the side of drive motor is fixedly connected on the side of cooling shell, the output end of drive motor is fixedly connected with connecting shaft through cooling shell, the outside of connecting shaft is fixedly connected with sleeve socket, the outer surface of sleeve socket is fixedly connected with third fixed link, one end of third fixed link is fixedly connected with second fixed link, the side of second fixed link is fixedly connected with first scraper, the other side of second fixed link is fixedly connected with stirring plate, the outer surface of connecting shaft is fixedly connected with connecting rod, one end of connecting rod is fixedly connected with stirring blade.

[0006] Preferably, one end of the connecting shaft is fixedly connected with a stirring claw.

[0007] Preferably, one end of the second fixed link is fixedly connected with a first fixed link, and the outer surface of the first fixed link is fixedly connected with a second scraper.

[0008] Preferably, the outer surface of the connecting shaft is fixedly connected with a spiral blade.

[0009] Preferably, the outer surface of the cooling shell is fixedly connected with a cooling pipe, two ends of the cooling pipe pass through one side of the outer shell, one end of the cooling pipe is fixedly connected with a second connecting port, and the other end of the cooling pipe is fixedly connected with a first connecting port.

[0010] Preferably, the top of the cooling shell is fixedly connected with a feeding port.

[0011] Preferably, one end of the cooling shell is fixedly connected with a guide cylinder, and one end of the guide cylinder is fixedly connected with a discharging port.

[0012] Compared with the prior art, the utility model has the advantages and positive effects that:

[0013] 1、 in the utility model, the third fixed rod is moved, the first scraper and the second scraper make circular motion, and the adhered agglomerates on the inner wall of the cooling shell and the inner wall of the guide cylinder are scraped, the adhered crystals are scraped and fallen back to the solution, the crystallization process is uniformly carried out in the solution, and the efficiency of crystallization and the uniformity of products are ensured.

[0014] 2、 in the utility model, the connecting shaft is driven to rotate by the driving motor, the spiral blade is spirally arranged outside the connecting shaft, the material is moved along the direction of the connecting shaft, the material circulates in the whole container, the efficiency of stirring is improved, the stirring blade and the stirring plate move, the inside of the cooling shell can be stirred at the same time, the uniform mixing of the solution is maintained, and the purity of crystallization is improved. DETAILED DESCRIPTION

[0015] Figure 1 A three-dimensional structure schematic diagram of the ten-bromine diphenyl ethane crystallization and purification equipment is provided for the utility model;

[0016] Figure 2 An internal section structure schematic diagram of the ten-bromine diphenyl ethane crystallization and purification equipment is provided for the utility model;

[0017] Figure 3 A ten-bromine diphenyl ethane crystallization and purification equipment anti-blocking mechanism connecting structure schematic diagram is provided for the utility model;

[0018] Figure 4 A second fixed rod connecting structure schematic diagram of the ten-bromine diphenyl ethane crystallization and purification equipment is provided for the utility model.

[0019] Legend: 1. Outer shell; 2. Anti-caking mechanism; 21. Drive motor; 22. Connecting shaft; 23. Sleeve sleeve; 24. Spiral blade; 25. Stirring blade; 26. Connecting rod; 27. Stirring claw; 28. First fixing rod; 29. ​​Second fixing rod; 210. Third fixing rod; 211. First scraper; 212. Second scraper; 213. Stirring plate; 3. Feed inlet; 4. Cooling and crystallizing mechanism; 41. Cooling pipe; 42. Cooling shell; 43. First connection port; 44. Second connection port; 5. Guide cylinder; 6. Discharge port. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0022] Example 1: As Figure 1 - Figure 4 As shown, this utility model provides a crystallization and purification device for decabromodiphenyl ethane, including an outer shell 1. A cooling crystallization mechanism 4 is installed inside the outer shell 1. The cooling crystallization mechanism 4 includes a cooling housing 42. An anti-caking mechanism 2 is installed inside the cooling housing 42. The anti-caking mechanism 2 includes a drive motor 21. One side of the drive motor 21 is fixedly connected to one side of the cooling housing 42. The output end of the drive motor 21 passes through the cooling housing 42 and is fixedly connected to a connecting shaft 22. A sleeve 23 is fixedly connected to the outside of the connecting shaft 22. A third fixing rod 210 is fixedly connected to the outer surface of the sleeve 23. One end of the third fixing rod 210 is fixedly connected to the second fixing rod 29. One side of the second fixing rod 29 is fixedly connected to the first scraper 211, and the other side of the second fixing rod 29 is fixedly connected to the stirring plate 213. The outer surface of the connecting shaft 22 is fixedly connected to the connecting rod 26, and one end of the connecting rod 26 is fixedly connected to the stirring blade 25. One end of the connecting shaft 22 is fixedly connected to the stirring claw 27. One end of the second fixing rod 29 is fixedly connected to the first fixing rod 28, and the outer surface of the first fixing rod 28 is fixedly connected to the second scraper 212. The outer surface of the connecting shaft 22 is fixedly connected to the spiral blade 24.

[0023] The drive motor 21 drives the connecting shaft 22 to rotate. A spiral blade 24 is spirally arranged on the outside of the connecting shaft 22. When the spiral blade 24 rotates, it generates axial thrust, pushing the material along the direction of the connecting shaft 22, allowing the material to circulate throughout the container and improving stirring efficiency. Simultaneously, a connecting rod 26 and stirring blade 25 are arranged on the outside of the connecting shaft 22 to stir the material inside the cooling shell 42. Two third fixed rods 210 are connected by a sleeve 23. When the third fixed rods 210 move, the first scraper 211 and the second scraper 212 perform circular motion, scraping off the clumps attached to the inner wall of the cooling shell 42 and the inner wall of the guide cylinder 5, respectively. The attached crystals are promptly scraped off and returned to the solution, ensuring that the crystallization process proceeds uniformly in the solution, guaranteeing crystallization efficiency and product uniformity. At the same time, the stirring plate 213 moves to simultaneously stir the inside of the cooling shell 42, maintaining uniform mixing of the solution and improving the purity of the crystals.

[0024] Example 2: Figure 1 and Figure 2 As shown, a cooling pipe 41 is fixedly connected to the outer surface of the cooling housing 42. Both ends of the cooling pipe 41 pass through one side of the outer housing 1. One end of the cooling pipe 41 is fixedly connected to a second connection port 44, and the other end of the cooling pipe 41 is fixedly connected to a first connection port 43. A feed inlet 3 is fixedly connected to the top of the cooling housing 42. A guide cylinder 5 is fixedly connected to one end of the cooling housing 42, and a discharge port 6 is fixedly connected to one end of the guide cylinder 5.

[0025] The overall effect of this embodiment is that two sets of cooling pipes 41 are provided in the cavity between the cooling shell 42 and the outer shell 1. The cooling pipes 41 surround the outer wall of the cooling shell 42. The two ends of the cooling pipes 41 are respectively connected to a first connection port 43 and a second connection port 44 for connecting to the water inlet and the water outlet, respectively. By introducing water of different temperatures into the cooling pipes 41, the solution inside the cooling shell 42 is slowly cooled, which promotes the uniform distribution of crystal nuclei and the regular growth of crystals.

[0026] The working principle and method of using the device are as follows: the two ends of the cooling pipe 41 are respectively connected with the first connecting port 43 and the second connecting port 44, which are used for connecting the water inlet and the water outlet respectively, water flow with different temperatures is introduced into the cooling pipe 41, which is used for slowly cooling the solution in the cooling shell 42, the driving motor 21 drives the connecting shaft 22 to rotate, the spiral blade 24 rotates, and the material is pushed to move along the direction of the connecting shaft 22, the connecting rod 26 and the stirring blade 25 are arranged, which are used for stirring the material in the cooling shell 42, when the third fixed rod 210 moves, the first scraper 211 and the second scraper 212 make circular motion, and the agitator 213 moves, which can stir the solution in the cooling shell 42, so that the solution is uniformly mixed.

[0027] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields. However, any simple modification, equivalent change and modification of the above embodiments made according to the technical essence of the present application without departing from the technical scheme of the present application still belongs to the protection scope of the technical scheme of the present application.

Claims

1. A decabromodiphenyl ethane crystallization purification apparatus comprising an outer housing (1), characterized in that: The inner side of the shell body (1) is provided with a cooling crystallization mechanism (4), the cooling crystallization mechanism (4) comprises a cooling shell (42), the inner side of the cooling shell (42) is provided with an anti-blocking mechanism (2), the anti-blocking mechanism (2) comprises a driving motor (21), one side of the driving motor (21) is fixedly connected to one side of the cooling shell (42), the output end of the driving motor (21) is fixedly connected with a connecting shaft (22) penetrating through the cooling shell (42), the outer side of the connecting shaft (22) is fixedly connected with a sleeve (23), the outer surface of the sleeve (23) is fixedly connected with a third fixed rod (210), one end of the third fixed rod (210) is fixedly connected with a second fixed rod (29), one side of the second fixed rod (29) is fixedly connected with a first scraper (211), the other side of the second fixed rod (29) is fixedly connected with a stirring plate (213), the outer surface of the connecting shaft (22) is fixedly connected with a connecting rod (26), one end of the connecting rod (26) is fixedly connected with a stirring blade (25).

2. A decabromodiphenyl ethane crystallization purification apparatus according to claim 1, characterized in that: One end of the connecting shaft (22) is fixedly connected with a stirring claw (27).

3. A decabromodiphenyl ethane crystallization purification apparatus according to claim 1, characterized in that: One end of the second fixed rod (29) is fixedly connected with a first fixed rod (28), the outer surface of the first fixed rod (28) is fixedly connected with a second scraper (212).

4. A decabromodiphenyl ethane crystallization purification apparatus according to claim 1, characterized in that: The outer surface of the connecting shaft (22) is fixedly connected with a spiral blade (24).

5. A decabromodiphenyl ethane crystallization purification apparatus according to claim 1, characterized by: The outer surface of the cooling shell (42) is fixedly connected with a cooling pipe (41), both ends of the cooling pipe (41) penetrate through one side of the shell body (1), one end of the cooling pipe (41) is fixedly connected with a second connecting port (44), the other end of the cooling pipe (41) is fixedly connected with a first connecting port (43).

6. A decabromodiphenyl ethane crystallization purification apparatus according to claim 1, characterized by: The top of the cooling shell (42) is fixedly connected with a feeding port (3).

7. A decabromodiphenyl ethane crystallization purification apparatus according to claim 1, characterized by: One end of the cooling shell (42) is fixedly connected with a guide cylinder (5), one end of the guide cylinder (5) is fixedly connected with a discharge port (6).

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