Ammonium perchlorate cooling crystallization device convenient to clean

Abstract

The utility model discloses an ammonium perchlorate cooling crystallization device convenient to clean, and relates to the technical field of chemical equipment, the ammonium perchlorate cooling crystallization device comprises a tank body, the top end of the tank body is rotatably provided with a rotating rod, the lower half section of the rotating rod is provided with an inner cavity, the bottom of the inner cavity is slidably provided with a first sliding rod, and the first sliding rod penetrates through the lower surface of the rotating rod; and the bottom end of the first sliding rod is fixedly connected with a first scraping plate, the side wall of the rotating rod is fixedly connected with a sliding barrel, and the sliding barrel communicates with the inner cavity. According to the ammonium perchlorate cooling crystallization device convenient to clean, by arranging the magnetic block, the first scraping plate, the second scraping plate and other structures, crystals attached to the inner wall of the tank body can be pushed and scraped, later cleaning of the interior of the tank body is facilitated, meanwhile, the first scraping plate and the second scraping plate do not make continuous contact with the inner wall of the tank body, abrasion is reduced, and the service life is prolonged; by adjusting the positions of the first scraping plate and the second scraping plate, the stirring range is expanded, and the use efficiency of the cooling crystallization device is improved.

Description

Technical Field

[0001] This utility model relates to the field of chemical equipment technology, and in particular to an ammonium perchlorate cooling crystallization device that is easy to clean. Background Technology

[0002] Crystallization is the process by which a solid forms in a solution (natural or artificial), in which atoms or molecules are highly organized into a solid structure called a crystal. Crystal formation mainly occurs through precipitation from a solution. When a hot, saturated solution is cooled, the solute precipitates out in the form of crystals. Crystallization equipment is widely used in industries such as food, chemicals, beverages, and pharmaceuticals.

[0003] For example, a patent entitled "Vertical Crystallizer" (patent application number: CN202022801936.8) discloses a vertical crystallizer. By fixing a wall-adhering scraper to one end of a retaining rod, and the retaining rod being fixed to the outside of a transmission rod, the transmission rod drives the retaining rod to rotate under the power output of the output motor and the transmission rod. The wall-adhering scraper adheres tightly to the inner wall of the crystallizer and scrapes off the precipitated crystals while rotating, preventing the crystals from adhering to the inner wall of the crystallizer. This facilitates the cleaning of the inside of the tank later and avoids residual crystals causing impurities in the next crystallization, thus avoiding waste of raw materials. However, the scraper is always in close contact with the inner wall of the crystallizer, which can accelerate wear and reduce service life.

[0004] Therefore, it is necessary to propose an easy-to-clean ammonium perchlorate cooling crystallization device to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide an ammonium perchlorate cooling crystallization device that is easy to clean, in order to solve the problem that the scraper is always in close contact with the inner wall of the crystallization tank, which easily accelerates wear and reduces service life.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an easy-to-clean ammonium perchlorate cooling crystallization device, comprising a tank, a rotating rod rotatably mounted at the top of the tank, an inner cavity formed in the lower half of the rotating rod, a first sliding rod slidably mounted at the bottom of the inner cavity, the first sliding rod penetrating the lower surface of the rotating rod, a first scraper fixedly connected to the bottom end of the first sliding rod, a sliding cylinder fixedly connected to the side wall of the rotating rod, the sliding cylinder communicating with the inner cavity, a second sliding rod slidably mounted at the end of the sliding cylinder away from the rotating rod, a second scraper fixedly connected to the end of the second sliding rod away from the sliding cylinder, a magnetic block slidably mounted inside the inner cavity, the magnetic block being located above the sliding cylinder, a slip ring mounted outside the rotating rod, the slip ring cooperating with the magnetic block, and a first stirring blade fixedly connected to the outer wall of the slip ring.

[0007] Preferably, an electric push rod is fixedly connected to the upper half of the inner cavity, and the magnetic block is fixedly connected to the telescopic end of the electric push rod.

[0008] Preferably, an outer shell is fixedly connected to the outer wall of the tank, and an installation chamber is formed between the outer shell and the tank. A circulation pipe is fixedly installed inside the installation chamber.

[0009] Preferably, the top end of the circulation tube is connected to an inlet tube, which extends to the outside of the outer casing.

[0010] Preferably, the bottom of the outer casing is provided with multiple support columns.

[0011] Preferably, a second stirring blade is fixedly connected to the rotating rod.

[0012] Preferably, a motor is fixedly connected to the top of the tank, and the rotating rod is fixedly connected to the drive shaft of the motor.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] 1. This utility model, by setting up structures such as magnetic blocks, first scrapers and second scrapers, can push and scrape the crystals attached to the inner wall of the tank, which is beneficial for cleaning the inside of the tank later. At the same time, the first scraper and the second scraper will not be in continuous contact with the inner wall of the tank, reducing wear and extending service life. Furthermore, by adjusting the position of the first scraper and the second scraper, the stirring range can be expanded, and the efficiency of the cooling crystallization device can be improved.

[0015] 2. When the magnetic block slides up and down inside the cavity, it will drive the slip ring to move synchronously. The slip ring will drive the first stirring blade to move, further expanding the stirring range. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the ammonium perchlorate cooling crystallization device of this utility model, which is easy to clean.

[0017] Figure 2 This is a cross-sectional structural diagram of the ammonium perchlorate cooling crystallization device of this utility model, which is easy to clean.

[0018] Figure 3 This utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle.

[0019] In the diagram: 1. Tank body; 2. Rotating rod; 3. Inner cavity; 4. Electric push rod; 5. Magnetic block; 6. Slip ring; 7. First stirring blade; 8. First sliding rod; 9. First scraper; 10. Slide cylinder; 11. Second sliding rod; 12. Second scraper; 13. Outer shell; 14. Circulation pipe; 15. Inlet pipe; 16. Second stirring blade; 17. Motor. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0021] This utility model provides, for example Figures 1-3 The device shown is an easy-to-clean ammonium perchlorate cooling crystallization apparatus suitable for crystallizing ammonium perchlorate solution. It includes a tank 1, with an outer shell 13 fixedly connected to the outer wall of the tank 1. Multiple support columns are provided at the bottom of the outer shell 13 to support the entire device. At least three support columns are provided. The tank 1 is also equipped with a feed pipe, a discharge pipe, a breather, and other structures. The ammonium perchlorate solution is crystallized inside the tank 1.

[0022] A rotating rod 2 is rotatably mounted on the top of the tank body 1. A motor 17 is fixedly connected to the top of the tank body 1, and the rotating rod 2 is fixedly connected to the drive shaft of the motor 17. A second stirring blade 16 is fixedly connected to the rotating rod 2. The motor 17 drives the second stirring blade 16 to rotate through the rotating rod 2. The second stirring blade 16 can stir the ammonium perchlorate solution to ensure the quality of the precipitated crystals.

[0023] Meanwhile, the stirring speed of the rotating rod 2 and the second stirring blade 16 can be set according to the required particle size to achieve the effect of adjustable particle size.

[0024] Considering that in existing ammonium perchlorate cooling crystallization devices, crystals tend to adhere to the inner wall of tank 1 during the crystal precipitation process, which is not conducive to subsequent crystal collection and also causes certain difficulties in cleaning, and if not cleaned thoroughly, crystal contamination can easily occur, leading to waste of raw materials, in order to improve the efficiency of the cooling crystallization device, an inner cavity 3 is opened in the lower half of the rotating rod 2. A first sliding rod 8 is slidably installed at the bottom of the inner cavity 3, penetrating the lower surface of the rotating rod 2. A first scraper 9 is fixedly connected to the bottom end of the first sliding rod 8, and the first scraper 9 cleans the inner bottom wall of tank 1. A sliding cylinder 10 is fixedly connected to the side wall of the rotating rod 2, and the sliding cylinder 10 communicates with the inner cavity 3. A second sliding rod 11 is slidably installed at the end of the sliding cylinder 10 away from the rotating rod 2. A second scraper 12 is fixedly connected to the end of the second sliding rod 11 away from the sliding cylinder 10, and the second scraper 12 cleans the inner side wall of tank 1. A magnetic block 5 is slidably arranged inside the inner cavity 3. The magnetic block 5 is located above the slide cylinder 10. An electric push rod 4 is fixedly connected to the upper half of the inner cavity 3. The magnetic block 5 is fixedly connected to the telescopic end of the electric push rod 4.

[0025] During the stirring process, the telescopic end of the electric push rod 4 is retracted, causing the magnetic block 5 to slide upward inside the inner cavity 3. This causes the first slide rod 8 to retract into the inner cavity 3, moving the first scraper 9 upward. The first scraper 9 will not contact the inner bottom wall of the tank 1, reducing wear. At the same time, the second slide rod 11 retracts into the slide cylinder 10, and the second scraper 12 moves towards the rotating rod 2. The second scraper 12 will not contact the inner side wall of the tank 1, reducing wear.

[0026] During collection and cleaning, the telescopic end of the electric push rod 4 extends, causing the magnetic block 5 to slide downward inside the inner cavity 3. This causes the first slide rod 8 to extend outward from the inside of the inner cavity 3, moving the first scraper 9 downward. The first scraper 9 then contacts the inner bottom wall of the tank 1. Simultaneously, the second slide rod 11 extends outward from the inside of the slide cylinder 10, and the second scraper 12 moves away from the rotating rod 2. The second scraper 12 then contacts the inner side wall of the tank 1. The motor 17 drives the first scraper 9 and the second scraper 12 to rotate through the rotating rod 2 and other structures. In the rotating state, the precipitated crystals are scraped off, preventing the crystals from adhering to the inner wall of the tank 1. This facilitates the subsequent cleaning of the inside of the tank 1 and prevents residual crystals from causing doping in the next crystallization.

[0027] Furthermore, during use, the telescopic end of the electric push rod 4 can be controlled to switch between extending and retracting, adjusting the positions of the first scraper 9 and the second scraper 12 to expand the stirring range and improve crystallization efficiency.

[0028] A slip ring 6 is provided on the outside of the rotating rod 2. The slip ring 6 can be made of stainless steel that is affected by magnetism. The slip ring 6 cooperates with the magnetic block 5, and a first stirring blade 7 is fixedly connected to the outer wall of the slip ring 6. When the magnetic block 5 slides up and down inside the inner cavity 3, it will drive the slip ring 6 to move synchronously. The slip ring 6 drives the first stirring blade 7 to move, further expanding the stirring range.

[0029] To ensure that the slip ring 6 and the rotating rod 2 rotate synchronously, the rotating rod 2 and the slip ring 6 are rectangular; in addition, the first sliding rod 8 and other structures are also rectangular.

[0030] By setting up structures such as magnetic block 5, first scraper 9 and second scraper 12, the crystals attached to the inner wall of tank 1 can be pushed and scraped, which is beneficial for cleaning the inside of tank 1 later. At the same time, the first scraper 9 and the second scraper 12 will not be in continuous contact with the inner wall of tank 1, reducing wear and extending service life. Furthermore, by adjusting the position of the first scraper 9 and the second scraper 12, the stirring range can be expanded, improving the efficiency of the cooling crystallization device.

[0031] An installation chamber is formed between the outer shell 13 and the tank 1, and a circulation pipe 14 is fixedly installed inside the installation chamber. The top end of the circulation pipe 14 is connected to an inlet pipe 15, which extends to the outside of the outer shell 13, and an outlet pipe (not shown in the figure) is also provided to communicate with the circulation pipe 14.

[0032] During the cooling and crystallization process of ammonium perchlorate solution, the inlet pipe 15 is connected to the coolant to form a circulation with the outlet pipe. The motor 17 drives the second stirring blade 16 to rotate through the rotating rod 2 to ensure the quality of the precipitated crystals.

Claims

1. An easy-to-clean ammonium perchlorate cooling crystallization device, comprising a tank (1), characterized in that: A rotating rod (2) is rotatably mounted on the top of the tank (1). An inner cavity (3) is formed in the lower half of the rotating rod (2). A first sliding rod (8) is slidably mounted on the bottom of the inner cavity (3). The first sliding rod (8) passes through the lower surface of the rotating rod (2). A first scraper (9) is fixedly connected to the bottom end of the first sliding rod (8). A sliding cylinder (10) is fixedly connected to the side wall of the rotating rod (2). The sliding cylinder (10) communicates with the inner cavity (3). The sliding cylinder (10) is located away from the inner cavity. A second slide rod (11) is slidably provided at one end of the rotating rod (2). A second scraper (12) is fixedly connected to the end of the second slide rod (11) away from the slide cylinder (10). A magnetic block (5) is slidably provided inside the inner cavity (3). The magnetic block (5) is located above the slide cylinder (10). A slip ring (6) is provided outside the rotating rod (2). The slip ring (6) cooperates with the magnetic block (5). A first stirring blade (7) is fixedly connected to the outer wall of the slip ring (6).

2. The ammonium perchlorate cooling crystallization device for easy cleaning according to claim 1, characterized in that: An electric push rod (4) is fixedly connected to the upper half of the inner cavity (3), and the magnetic block (5) is fixedly connected to the telescopic end of the electric push rod (4).

3. The ammonium perchlorate cooling crystallization apparatus for easy cleaning according to claim 1, characterized in that: A shell (13) is fixedly connected to the outer wall of the tank (1), and an installation chamber is formed between the shell (13) and the tank (1). A circulation pipe (14) is fixedly installed inside the installation chamber.

4. The ammonium perchlorate cooling crystallization apparatus for easy cleaning according to claim 3, characterized in that: The top end of the circulation pipe (14) is connected to an inlet pipe (15), which extends to the outside of the outer shell (13).

5. The ammonium perchlorate cooling crystallization apparatus for easy cleaning according to claim 3, characterized in that: The bottom of the outer shell (13) is provided with multiple support columns.

6. The ammonium perchlorate cooling crystallization apparatus for easy cleaning according to claim 1, characterized in that: A second stirring blade (16) is fixedly connected to the rotating rod (2).

7. The ammonium perchlorate cooling crystallization apparatus for easy cleaning according to claim 1, characterized in that: A motor (17) is fixedly connected to the top of the tank (1), and the rotating rod (2) is fixedly connected to the drive shaft of the motor (17).

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