A crystallization apparatus for producing high purity barium chloride

Abstract

The utility model discloses a kind of crystallization devices for preparing high-purity barium chloride belonging to high-purity barium chloride production equipment technical field, including outer cylinder, the inside of outer cylinder is provided with inner cylinder, cooling tank is provided between inner cylinder and outer cylinder, the inside of inner cylinder is spirally arranged with first circulating copper pipe from top to bottom, the inside of inner cylinder is also spirally arranged with second circulating copper pipe from top to bottom, by being separately provided with first circulating copper pipe and second circulating copper pipe in the inside of inner cylinder, using second liquid inlet pipe and second liquid outlet pipe, so that the cooling liquid in first circulating copper pipe flows through inner cylinder from top to bottom, then using third liquid inlet pipe and third liquid outlet pipe, so that the cooling liquid in second circulating copper pipe flows through inner cylinder from bottom to top, so that the inside top end and bottom end of inner cylinder can be cooled simultaneously, to improve the efficiency of cooling, ensure the temperature uniformity between each position in the inside of inner cylinder, to improve the crystallization quality of barium chloride.

Description

Technical Field

[0001] This utility model belongs to the technical field of high-purity barium chloride production equipment, specifically relating to a crystallization device for preparing high-purity barium chloride. Background Technology

[0002] High-purity barium chloride is produced by using industrial barium chloride as raw material. The process involves high-temperature dissolution, impurity removal, crystallization, cleaning, and drying, and repeating these operations to obtain high-purity barium chloride with low impurity content and high barium chloride content. After impurity removal, all solid impurities are removed, and the solution is a high-temperature saturated barium chloride solution. Then, rapid cooling crystallization is performed to achieve the purpose of barium chloride crystallization. Generally, this process requires the solution to be rapidly cooled from above 80°C to 0 to 10°C in a short time to achieve large crystal particles and a single crystal form.

[0003] According to patent number CN201921225456.2, a crystallization apparatus for preparing high-purity barium chloride includes a working cylinder, an upper end cover, a lower end cover, a refrigerant jacket, and a cooling pipe. The upper end cover is sealed at the top of the working cylinder, and the lower end cover is sealed at the bottom of the working cylinder. Cooling grooves are provided inside the upper and lower end covers respectively. The upper end cover has a feed inlet, and the lower end cover has a discharge outlet. The cooling pipe is located inside the working cylinder. One end of the cooling pipe passes through the upper end cover and extends out of the working cylinder to connect with a cooling device. The other end of the cooling pipe passes through the lower end cover and extends out of the working cylinder. The cooling pipe is sealed to the upper and lower end covers respectively. Regulating valves are provided at both ends of the cooling pipe. The refrigerant jacket is located on the outer wall of the working cylinder.

[0004] The above-mentioned scheme still has certain defects in actual use. Because the cooling pipe is coiled inside the working cylinder, the temperature at the inlet end of the cooling pipe is relatively low, while the temperature at the outlet end of the cooling pipe is relatively high. This makes it difficult for the temperature inside the working cylinder to achieve effective equilibrium, resulting in low crystallization efficiency and poor effect. Therefore, we propose a crystallization device for preparing high-purity barium chloride. Utility Model Content

[0005] The purpose of this invention is to provide a crystallization apparatus for preparing high-purity barium chloride, thereby solving the existing problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a crystallization apparatus for preparing high-purity barium chloride, comprising an outer cylinder, an inner cylinder, a cooling tank, a first circulating copper tube, and a second circulating copper tube. The inner cylinder is disposed inside the outer cylinder, and a cooling tank is disposed between the inner cylinder and the outer cylinder. The cooling tank completely surrounds the outer periphery of the inner cylinder. The first circulating copper tube is spirally disposed from top to bottom inside the inner cylinder. The top end of the first circulating copper tube extends to the outside through the bottom center of the inner cylinder and the outer cylinder, and the bottom end of the first circulating copper tube extends to the outside through the bottom center of the inner cylinder and the outer cylinder. The second circulating copper tube is also spirally disposed from top to bottom inside the inner cylinder, and the second circulating copper tube and the first circulating copper tube are alternately disposed inside the inner cylinder.

[0007] Preferably, a second inlet pipe is provided at the top of the first circulating copper pipe, and a second outlet pipe is provided at the bottom of the first circulating copper pipe. The second inlet pipe and the second outlet pipe are respectively located at the center of the top and bottom of the outer cylinder.

[0008] Preferably, the bottom end of the second circulating copper tube passes through the inner cylinder and the outer cylinder and extends to the outside of the bottom side of the outer cylinder and is fixedly connected to a third inlet pipe, and the top end of the second circulating copper tube passes through the inner cylinder and the outer cylinder and extends to the outside of the top side of the outer cylinder and is fixedly connected to a third outlet pipe.

[0009] Preferably, a first liquid inlet pipe is provided on one side of the top of the outer cylinder, the first liquid inlet pipe is inserted into the top of the cooling tank, and a first liquid outlet pipe is provided on the side of the bottom of the outer cylinder away from the first liquid inlet pipe, which is connected to the bottom of the cooling tank.

[0010] Preferably, each of the first inlet pipe, the first outlet pipe, the second inlet pipe, the second outlet pipe, the third inlet pipe, and the third outlet pipe is equipped with a solenoid valve.

[0011] Preferably, the top and bottom of the outer cylinder are respectively provided with a feed inlet and a discharge outlet, the feed inlet and the discharge outlet extend to the top and bottom of the inner cylinder respectively, and a temperature sensor is provided in the middle of one side of the inner cylinder.

[0012] Preferably, the top of the inner cylinder is provided with support columns around its bottom, and the two ends of the support columns are fixedly connected to the inner wall of the outer cylinder and the outer wall of the inner cylinder by welding.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. By installing a first circulating copper pipe and a second circulating copper pipe inside the inner cylinder, and using a second inlet pipe and a second outlet pipe, the coolant in the first circulating copper pipe flows from top to bottom through the inner cylinder. Then, using a third inlet pipe and a third outlet pipe, the coolant in the second circulating copper pipe flows from bottom to top through the inner cylinder. This allows the top and bottom of the inner cylinder to be cooled simultaneously, thereby improving the cooling efficiency, ensuring temperature uniformity across all parts of the inner cylinder, and thus improving the crystallization quality of barium chloride.

[0015] 2. By setting an outer cylinder body outside the inner cylinder body and setting a cooling tank between the inner and outer cylinder bodies, the cooling tank is filled with coolant through the first inlet pipe and the coolant inside is circulated through the first outlet pipe, so that the coolant can completely surround the outside of the inner cylinder body, thereby improving the temperature uniformity between various positions inside the inner cylinder body and improving the crystallization quality of barium chloride. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a multi-angle structural schematic diagram of the present invention;

[0018] Figure 3 This is a schematic diagram of the structure of the first circulating copper pipe, the second circulating copper pipe, and the cooling tank of this utility model.

[0019] In the diagram: 1. Outer cylinder; 2. Inner cylinder; 3. Cooling tank; 4. First inlet pipe; 5. First outlet pipe; 6. Second inlet pipe; 7. First circulating copper pipe; 8. Second outlet pipe; 9. Third inlet pipe; 10. Second circulating copper pipe; 11. Third outlet pipe; 12. Solenoid valve; 13. Feed inlet; 14. Discharge outlet; 15. Support column; 16. Temperature sensor. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1-3This utility model provides a crystallization apparatus for preparing high-purity barium chloride, comprising an outer cylinder 1, an inner cylinder 2, a cooling tank 3, a first circulating copper pipe 7, and a second circulating copper pipe 10. The inner cylinder 2 is disposed inside the outer cylinder 1, and the cooling tank 3 is disposed between the inner cylinder 2 and the outer cylinder 1, completely enclosing the outer periphery of the inner cylinder 2. The first circulating copper pipe 7 is spirally disposed inside the inner cylinder 2 from top to bottom. The top end of the first circulating copper pipe 7 extends to the outside through the bottom center of the inner cylinder 2 and the outer cylinder 1, and the bottom end of the first circulating copper pipe 7 extends to the outside through the bottom center of the inner cylinder 2 and the outer cylinder 1. The second circulating copper pipe 10 is also spirally disposed inside the inner cylinder 2 from top to bottom, and the second circulating copper pipe 10 and the first circulating copper pipe 7 are alternately disposed inside the inner cylinder 2.

[0022] Specifically, a second inlet pipe 6 is provided at the top of the first circulation copper pipe 7, and a second outlet pipe 8 is provided at the bottom of the first circulation copper pipe 7. The second inlet pipe 6 and the second outlet pipe 8 are respectively located at the center of the top and bottom of the outer cylinder 1.

[0023] Specifically, the bottom end of the second circulation copper pipe 10 passes through the inner cylinder 2 and the outer cylinder 1, extends to the outside of the bottom side of the outer cylinder 1, and is fixedly connected to the third liquid inlet pipe 9. The top end of the second circulation copper pipe 10 passes through the inner cylinder 2 and the outer cylinder 1, extends to the outside of the top side of the outer cylinder 1, and is fixedly connected to the third liquid outlet pipe 11.

[0024] Specifically, a first liquid inlet pipe 4 is provided on one side of the top of the outer cylinder 1, and the first liquid inlet pipe 4 is connected to the top of the interior of the cooling tank 3. A first liquid outlet pipe 5 is provided on the side of the bottom of the outer cylinder 1 away from the first liquid inlet pipe 4, which is connected to the bottom of the interior of the cooling tank 3.

[0025] Specifically, a solenoid valve 12 is installed inside the first inlet pipe 4, the first outlet pipe 5, the second inlet pipe 6, the second outlet pipe 8, the third inlet pipe 9, and the third outlet pipe 11.

[0026] Specifically, the top and bottom of the outer cylinder 1 are respectively provided with a feed inlet 13 and a discharge outlet 14, the feed inlet 13 and the discharge outlet 14 extend to the top and bottom of the inner cylinder 2 respectively, and a temperature sensor 16 is provided in the middle of one side of the inner cylinder 2.

[0027] Specifically, the top of the inner cylinder 2 is provided with support columns 15 on all four sides of the bottom. The two ends of the support columns 15 are fixedly connected to the inner wall of the outer cylinder 1 and the outer wall of the inner cylinder 2 by welding.

[0028] In this embodiment, during use, the first inlet pipe 4, the first outlet pipe 5, the second inlet pipe 6, the second outlet pipe 8, the third inlet pipe 9, and the third outlet pipe 11 are connected to the cooling equipment to establish a circulating cooling return pipeline. This allows the coolant in the cooling equipment to flow into the cooling tank 3, the first circulating copper pipe 7, and the second circulating copper pipe 10. The coolant enters the cooling tank 3 from the first inlet pipe 4 and gradually fills the cooling tank 3. Then, the solenoid valve 12 on the first outlet pipe 5 is opened, allowing the coolant in the cooling tank 3 to circulate. In this process, the inner cylinder 2 is cooled from all sides. At the same time, coolant is injected into the first circulating copper pipe 7 and the second circulating copper pipe 10 from the top and bottom of the inner cylinder 2, respectively, through the second liquid inlet pipe 6 and the third liquid inlet pipe 9. This allows the interior of the inner cylinder 2 to be cooled from both the top and bottom. Then, the coolant is discharged through the second liquid outlet pipe 8 and the third liquid outlet pipe 11, allowing it to enter a circulation state. This improves the efficiency of cooling the interior of the inner cylinder 2, ensures the temperature uniformity between different locations inside the inner cylinder 2, and thus improves the crystallization quality of barium chloride.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A crystallization apparatus for preparing high-purity barium chloride, comprising an outer cylinder (1), an inner cylinder (2), a cooling tank (3), a first circulating copper pipe (7), and a second circulating copper pipe (10), characterized in that: An inner cylinder (2) is provided inside the outer cylinder (1). A cooling groove (3) is provided between the inner cylinder (2) and the outer cylinder (1). The cooling groove (3) completely surrounds the outer periphery of the inner cylinder (2). A first circulating copper pipe (7) is spirally arranged inside the inner cylinder (2) from top to bottom. The top end of the first circulating copper pipe (7) extends to the outside through the bottom center of the inner cylinder (2) and the outer cylinder (1). The bottom end of the first circulating copper pipe (7) extends to the outside through the bottom center of the inner cylinder (2) and the outer cylinder (1). A second circulating copper pipe (10) is also spirally arranged inside the inner cylinder (2) from top to bottom. The second circulating copper pipe (10) and the first circulating copper pipe (7) are arranged alternately inside the inner cylinder (2).

2. The crystallization apparatus for preparing high-purity barium chloride according to claim 1, characterized in that: The first circulating copper pipe (7) is provided with a second inlet pipe (6) at the top and a second outlet pipe (8) at the bottom. The second inlet pipe (6) and the second outlet pipe (8) are respectively located at the top and bottom center of the outer cylinder body (1).

3. The crystallization apparatus for preparing high-purity barium chloride according to claim 2, characterized in that: The bottom end of the second circulating copper tube (10) passes through the inner cylinder (2) and the outer cylinder (1) and extends to the outside of the bottom end of the outer cylinder (1) and is fixedly connected to the third inlet pipe (9). The top end of the second circulating copper tube (10) passes through the inner cylinder (2) and the outer cylinder (1) and extends to the outside of the top end of the outer cylinder (1) and is fixedly connected to the third outlet pipe (11).

4. The crystallization apparatus for preparing high-purity barium chloride according to claim 3, characterized in that: The top of the outer cylinder (1) is provided with a first liquid inlet pipe (4), which is located at the top of the pharyngeal swab cooling tank (3). The bottom of the outer cylinder (1) is provided with a first liquid outlet pipe (5) that communicates with the bottom of the cooling tank (3) on the side away from the first liquid inlet pipe (4).

5. A crystallization apparatus for preparing high-purity barium chloride according to claim 4, characterized in that: Solenoid valves (12) are installed inside the first liquid inlet pipe (4), the first liquid outlet pipe (5), the second liquid inlet pipe (6), the second liquid outlet pipe (8), the third liquid inlet pipe (9), and the third liquid outlet pipe (11).

6. The crystallization apparatus for preparing high-purity barium chloride according to claim 1, characterized in that: The top and bottom of the outer cylinder (1) are respectively provided with a feed inlet (13) and a discharge outlet (14). The feed inlet (13) and the discharge outlet (14) extend to the top and bottom of the inner cylinder (2) respectively. A temperature sensor (16) is provided in the middle of one side of the inner cylinder (2).

7. A crystallization apparatus for preparing high-purity barium chloride according to claim 1, characterized in that: The top of the inner cylinder (2) is provided with support columns (15) on all four sides of the bottom. The two ends of the support columns (15) are fixedly connected to the inner wall of the outer cylinder (1) and the outer wall of the inner cylinder (2) by welding.

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