Continuous crystallization preparation device for ammonium perchlorate

Abstract

The utility model discloses an ammonium perchlorate continuous crystallization preparation device, and relates to the technical field of ammonium perchlorate production equipment. The continuous crystallization preparation device for ammonium perchlorate comprises an ammonium perchlorate crystallizing tank, the crystallizing tank cleaning assembly comprises a second driving motor, the output end of the second driving motor extends into the ammonium perchlorate crystallizing tank and is fixedly connected with a movable frame, and the movable frame is rotationally connected with the ammonium perchlorate crystallizing tank; a movable ring is rotationally connected to the interior of the ammonium perchlorate crystallizing tank, four connecting rods and four spiral blades are fixedly connected between the movable frame and the movable ring, and filtering holes and through grooves are formed in the surface of the movable ring. By means of the structure, ammonium perchlorate crystals attached to the inner wall of the ammonium perchlorate crystallizing tank can be scraped away conveniently, the situation that ammonium perchlorate crystal residues affect the follow-up crystallizing process of an ammonium perchlorate solution is avoided, and the yield of the ammonium perchlorate crystals is increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to ammonium perchlorate production equipment technical field especially relates to a kind of ammonium perchlorate continuous crystallization preparation device. BACKGROUND

[0002] Ammonium perchlorate as a strong oxidant, it can be used to make explosive, fireworks, and used as analytical reagent etc.;It can also be used to initiate aluminum oxidation with magnesium, and then initiate ammonium perchlorate decomposition to produce a large amount of gas, used for rocket launch. It is also used to manufacture ammonium perchlorate explosive, engraving agent and artificial anti-hail agent etc. It is widely used in aerospace industry and people's life field. In the production process of ammonium perchlorate, crystallization process is an important link. Chinese utility model patent, authorized publication number "CN217645879U" discloses a kind of ammonium perchlorate crystallization kettle stirring and side wall scraping device, including the stirring shaft in the crystallization kettle, the stirring shaft top is connected with the stirring motor output shaft, the stirring blade is arranged on the stirring shaft, the stirring shaft upper side and lower side are fixedly connected with the middle part of connecting plate, the connecting plate both ends are rotatably connected with the rotating shaft end, the rotating shaft upper side and lower side are fixedly connected with the center of straight gear, the straight gear is meshed with the inner side of ring gear, the ring gear is fixed to the inner side wall of crystallization kettle, the rotating shaft surface is provided with spiral scraper, the spiral scraper outer edge is in contact with the inner side wall of crystallization kettle.

[0003] The above technical scheme combines the original stirring mechanism, sets spiral scraper that can both rotate and revolve, can effectively scrape the crystals adhered to the inner wall of crystallization kettle, greatly reduces the probability of forming annular scale on the inner wall of crystallization kettle, and improves the crystallization efficiency. However, the above technical scheme still has some defects. Under the action of spiral scraper, the crystals adhered to the inner wall of crystallization kettle are scraped. When the spiral scraper rotates, the contact area between the part passed by a single spiral scraper and the inner wall of crystallization kettle is small, and it cannot be scraped completely. In the crystallization process of ammonium perchlorate, if the crystals adhered to the inner wall of crystallization kettle are not scraped completely, these residual crystals may continue to participate in the crystallization reaction, resulting in uneven product quality and affecting product quality. Therefore, a new solution is proposed in the utility model. UTILITY MODEL CONTENTS

[0004] The utility model aims to solve one of the technical problems in the prior art, provide a kind of ammonium perchlorate continuous crystallization preparation device, can solve under the action of spiral scraper, the crystals adhered to the inner wall of crystallization kettle are scraped;When the spiral scraper rotates, the contact area between the part passed by a single spiral scraper and the inner wall of crystallization kettle is small, and it cannot be scraped completely. These residual crystals may continue to participate in the crystallization reaction, resulting in uneven product quality and affecting product quality.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of ammonium perchlorate continuous crystallization preparation device, including ammonium perchlorate crystallizing tank;

[0006] Stirring assembly, stirring assembly is arranged in the inside of ammonium perchlorate crystallizing tank;

[0007] Crystallizing tank cleaning assembly, crystallizing tank cleaning assembly is arranged in the inside of ammonium perchlorate crystallizing tank, and crystallizing tank cleaning assembly includes second drive motor, second drive motor is fixedly connected at the upper end of ammonium perchlorate crystallizing tank, and the output end of second drive motor extends to the inside of ammonium perchlorate crystallizing tank and is fixedly connected with movable frame, and movable frame is rotatably connected with ammonium perchlorate crystallizing tank;

[0008] Ammonium perchlorate crystallizing tank is rotatably connected with movable ring in the inside, and four connecting rods and four spiral vanes are fixedly connected between movable frame and movable ring, and filter hole and through slot are formed in the surface of movable ring.

[0009] Preferably, the stirring assembly includes a first drive motor fixedly connected to the lower end of the ammonium perchlorate crystallizing tank, and the output end of the first drive motor extends into the interior of the ammonium perchlorate crystallizing tank and is fixedly connected with a first gear;

[0010] Ammonium perchlorate crystallizing tank is rotatably connected with rotary disc in the inside, rotary shaft is rotatably connected in the inside of rotary disc, second gear is fixedly connected on the surface of rotary shaft, and spiral stirring vane is fixedly connected on the surface of rotary shaft.

[0011] The inside of the ammonium perchlorate crystallizing tank is fixedly connected with a gear ring, the first gear is engaged with the second gear, and the second gear is engaged with the gear ring.

[0012] Preferably, the surface of the ammonium perchlorate crystallizing tank is fixedly connected with a sleeve, the inside of the sleeve is hollow, a cooling water pipe is fixedly connected in the inside of the sleeve, the cooling water pipe is spiral-shaped, and both ends of the cooling water pipe extend out of the sleeve.

[0013] Preferably, the number of the rotary shaft, the second gear and the spiral stirring vane is two respectively symmetrically arranged on both sides of the rotary disc.

[0014] Preferably, the upper end of the rotary disc is conical.

[0015] Preferably, the spiral directions of the two spiral stirring vanes are opposite and both downwardly inclined from the middle to the edge.

[0016] Preferably, the surface of the ammonium perchlorate crystallizing tank is fixedly connected with a liquid discharge pipe and a discharge pipe, and the liquid discharge pipe and the discharge pipe are arranged in an up-and-down staggered manner on the surface of the ammonium perchlorate crystallizing tank.

[0017] Preferably, the upper end of the ammonium perchlorate crystallizing tank is fixedly connected with a feed pipe.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. This continuous crystallization preparation device for ammonium perchlorate, through the rotation of the connecting rod and spiral blades after the ammonium perchlorate solution has crystallized, facilitates the scraping off of ammonium perchlorate crystals adhering to the inner wall of the crystallization tank, avoiding residual ammonium perchlorate crystals that could affect the subsequent crystallization process of the ammonium perchlorate solution, thereby increasing the yield of ammonium perchlorate crystals. Furthermore, the filter holes and channels on the surface of the moving ring are connected to the corresponding drain pipe and discharge pipe, facilitating the separate discharge of the solution and crystals, and preventing potential problems during subsequent collection and storage of the solution and crystals, thus improving the device's practicality and convenience. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0021] Figure 1 This is a schematic diagram of the structure of a continuous crystallization preparation device for ammonium perchlorate according to the present invention;

[0022] Figure 2 This is a schematic diagram of the cooling water pipe of this utility model;

[0023] Figure 3 This is a schematic diagram of the ammonium perchlorate crystallization tank of this utility model;

[0024] Figure 4 This is a schematic diagram of the movable ring of this utility model;

[0025] Figure 5 This is a schematic diagram of the spiral stirring blade of this utility model.

[0026] Reference numerals in the attached drawings: 1. Ammonium perchlorate crystallizer; 2. Sleeve; 3. Cooling water pipe; 4. Feed pipe; 5. Drain pipe; 6. Discharge pipe; 7. First drive motor; 8. First gear; 9. Turntable; 10. Rotating shaft; 11. Second gear; 12. Spiral stirring blade; 13. Second drive motor; 14. Movable frame; 15. Movable ring; 16. Connecting rod; 17. Spiral blade; 18. Filter hole; 19. Through groove; 20. Gear ring. Detailed Implementation

[0027] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0028] In the description of the utility model, it is understood that the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right etc. based on the orientation or positional relationship shown in the drawing, is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0029] In the description of the utility model, greater than, less than, more than, etc. are understood as not including the number, and above, below, etc. are understood as including the number. If the first and second are described, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the sequence of indicated technical features.

[0030] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installing and connecting should be broadly understood, and the specific meaning of the above words in the utility model can be reasonably determined by the person skilled in the art in combination with the specific content of the technical scheme.

[0031] Please refer to Figures 1-5 The utility model provides a kind of technical scheme: a kind of ammonium perchlorate continuous crystallization preparation device, including ammonium perchlorate crystallizing tank 1, stirring subassembly, stirring subassembly is set in the inside of ammonium perchlorate crystallizing tank 1, crystallizing tank cleaning subassembly, crystallizing tank cleaning subassembly is set in the inside of ammonium perchlorate crystallizing tank 1, crystallizing tank cleaning subassembly includes second drive motor 13, second drive motor 13 is fixedly connected at the upper end of ammonium perchlorate crystallizing tank 1, the output end of second drive motor 13 extends to the inside of ammonium perchlorate crystallizing tank 1 and is fixedly connected with movable rack 14, movable rack 14 is rotatably connected with ammonium perchlorate crystallizing tank 1, movable ring 15 is rotatably connected in the inside of ammonium perchlorate crystallizing tank 1, four connecting rods 16 and four spiral vanes 17 are fixedly connected between movable ring 15 and movable rack 14, filter hole 18 and through slot 19 are set on the surface of movable ring 15.

[0032] Stirring subassembly includes first drive motor 7, first drive motor 7 is fixedly connected at the lower end of ammonium perchlorate crystallizing tank 1, the output end of first drive motor 7 extends to the inside of ammonium perchlorate crystallizing tank 1 and is fixedly connected with first gear 8, rotary disc 9 is rotatably connected in the inside of ammonium perchlorate crystallizing tank 1, rotary shaft 10 is rotatably connected in the inside of rotary disc 9, second gear 11 is fixedly connected on the surface of rotary shaft 10, spiral stirring vane 12 is fixedly connected on the surface of rotary shaft 10, gear ring 20 is fixedly connected in the inside of ammonium perchlorate crystallizing tank 1, first gear 8 and second gear 11 are engaged, and second gear 11 and gear ring 20 are engaged.

[0033] The surface of the ammonium perchlorate crystallization tank 1 is fixedly connected with a sleeve 2, the inside of the sleeve 2 is hollow, the inside of the sleeve 2 is fixedly connected with a cooling water pipe 3, the cooling water pipe 3 is spiral-shaped and both ends of the cooling water pipe 3 extend out of the sleeve 2.

[0034] The number of the rotating shaft 10, the second gear 11 and the spiral stirring blade 12 is two respectively, which are symmetrically arranged on both sides of the rotating disc 9.

[0035] The upper end of the rotating disc 9 is conical.

[0036] The spiral directions of the two spiral stirring blades 12 are opposite and both are inclined downward from the middle to the edge.

[0037] The surface of the ammonium perchlorate crystallization tank 1 is fixedly connected with a liquid discharge pipe 5 and a material discharge pipe 6, the liquid discharge pipe 5 and the material discharge pipe 6 are arranged in an up-and-down staggered manner on the surface of the ammonium perchlorate crystallization tank 1.

[0038] The upper end of the ammonium perchlorate crystallization tank 1 is fixedly connected with a feeding pipe 4.

[0039] When using the device, first, the saturated ammonium perchlorate solution is introduced into the ammonium perchlorate crystallization tank 1 through the feeding pipe 4 at the top of the ammonium perchlorate crystallization tank 1, then cold water is introduced into the inside of the cooling water pipe 3, which facilitates cooling the ammonium perchlorate crystallization tank 1 by cold water, and then cooling and crystallizing the saturated ammonium perchlorate solution inside the ammonium perchlorate crystallization tank 1, the solubility of ammonium perchlorate is greatly affected by temperature, after cooling and cooling the ammonium perchlorate solution, the ammonium perchlorate inside the solution will be precipitated, when cooling and cooling the saturated ammonium perchlorate solution, the first driving motor 7 is started to drive the first gear 8 to rotate, the first gear 8 drives the second gear 11 to rotate on the surface of the gear ring 20, so that the second gear 11 rotates and revolves, the second gear 11 drives the spiral stirring blade 12 to rotate when rotating, the second gear 11 drives the rotating disc 9 to rotate when revolving, which facilitates stirring the saturated ammonium perchlorate solution inside the ammonium perchlorate crystallization tank 1 by the rotation and revolution of the spiral stirring blade 12.

[0040] The stirring can increase the contact area of the ammonium perchlorate solution with the inner wall of the ammonium perchlorate crystallization tank 1, thereby improving the heat exchange efficiency and making the solution temperature more uniform, and the degree of turbulence and shear force of the solution are enhanced due to the opposite spiral directions of the two spiral stirring blades 12 and the downward inclination from the middle to the edge, which promotes the uniform distribution of ammonium perchlorate and accelerates heat transfer, while facilitating the uniform growth of ammonium perchlorate crystals during stirring and reducing agglomeration. This stirring method can produce complex fluid dynamics effects through the combination of rotation and revolution, enhancing the degree of turbulence of the solution and generating a certain shear force during stirring, which helps to break up the agglomerates that may form in the solution, making the ammonium perchlorate crystal particles more dispersed. This dispersed state is conducive to the ammonium perchlorate crystals obtaining more uniform nutrients and growth environment during the growth process, thereby promoting the uniform growth of ammonium perchlorate crystals.

[0041] When the ammonium perchlorate crystal crystallization is completed, the ammonium perchlorate crystallization tank 1 contains not only the ammonium perchlorate solution but also the precipitated ammonium perchlorate crystals, so it is necessary to discharge them separately to facilitate the collection and storage of the solution and the crystals.

[0042] Start the second drive motor 13 to drive the movable frame 14 to rotate, and the movable frame 14 drives the connecting rod 16 and the spiral blade 17 to rotate, thereby driving the movable ring 15 to rotate, and the filter hole 18 is aligned with the liquid discharge pipe 5, which facilitates the filtration of the solution through the filter hole 18, facilitates the separation of the solution and the crystals, and facilitates the discharge of the solution from the liquid discharge pipe 5;

[0043] When the solution in the ammonium perchlorate crystallization tank 1 is discharged, start the second drive motor 13 again and drive the movable ring 15 to rotate, and the through slot 19 is aligned with the discharge pipe 6, which facilitates the discharge of the crystals in the ammonium perchlorate crystallization tank 1 from the discharge pipe 6. The rotation of the shaft 10 and the spiral stirring blade 12 is always maintained during the discharge of the solution and the crystals, and the design of the upper end of the rotating disc 9 in the form of a cone facilitates the flow of the crystals in the ammonium perchlorate crystallization tank 1 to the edge of the rotating disc 9, further improving the discharge efficiency of the crystals and the working efficiency of the device.

[0044] After the crystallization is completed, some ammonium perchlorate crystals may exist on the inner wall of the ammonium perchlorate crystallization tank 1, and the rotation of the connecting rod 16 and the spiral blade 17 facilitates the scraping of the inner wall of the ammonium perchlorate crystallization tank 1, which facilitates the removal of the ammonium perchlorate crystals on the inner wall of the ammonium perchlorate crystallization tank 1 and the discharge of the crystals from the discharge pipe 6, realizing continuous discharge of the crystals and improving the production efficiency of the equipment and the yield of the crystals.

[0045] By injecting saturated ammonium perchlorate solution into the interior of the ammonium perchlorate crystallization tank 1 from the feed pipe 4 again and repeating the above process, continuous and repeated crystallization of ammonium perchlorate crystals can be achieved, improving the practicality and convenience of the device.

[0046] Further, by rotating the connecting rod 16 and the helical blade 17 after the completion of the ammonium perchlorate solution crystallization, the ammonium perchlorate crystals attached to the inner wall of the ammonium perchlorate crystallization tank 1 are scraped off, avoiding the influence of residual ammonium perchlorate crystals on the subsequent crystallization process of the ammonium perchlorate solution, improving the yield of ammonium perchlorate crystals, and making the filter holes 18 and the through grooves 19 on the surface of the movable ring 15 respectively correspond to the corresponding liquid discharge pipe 5 and the discharge pipe 6, facilitating the discharge of the solution and the crystals respectively, facilitating the separation of the solution and the crystals, avoiding the possibility of causing the solution and the crystals to be collected and stored in the subsequent process, and improving the practicability and convenience of the device.

[0047] By the rotation and revolution of the helical stirring blade 12, the ammonium perchlorate solution is cooled, the ammonium perchlorate crystals are cooled and crystallized, which helps to break the agglomerates that may form in the solution, making the ammonium perchlorate crystal particles more dispersed, thereby promoting the uniform growth of ammonium perchlorate crystals and improving the quality and yield of ammonium perchlorate crystals.

[0048] Structure description: ammonium perchlorate crystallization tank 1: as a place for cooling and crystallization of ammonium perchlorate solution, providing space for the entire crystallization process;

[0049] Sleeve 2: fixed on the surface of the ammonium perchlorate crystallization tank 1, the inside is used to install the cooling water pipe 3, which plays a protective and supporting role for the cooling water pipe;

[0050] Cooling water pipe 3: arranged in a spiral shape inside the sleeve 2, extending out of the sleeve at both ends; by passing in cold water, the ammonium perchlorate crystallization tank 1 is cooled, and the saturated ammonium perchlorate solution in the tank is cooled and crystallized;

[0051] Feed pipe 4: fixed at the upper end of the ammonium perchlorate crystallization tank 1, used to pass saturated ammonium perchlorate solution into the ammonium perchlorate crystallization tank 1;

[0052] Liquid discharge pipe 5: fixed on the surface of the ammonium perchlorate crystallization tank 1, cooperating with the filter holes 18 of the movable ring 15, used to discharge the solution in the ammonium perchlorate crystallization tank 1;

[0053] Discharge pipe 6: fixed on the surface of the ammonium perchlorate crystallization tank 1, cooperating with the through grooves 19 of the movable ring 15, used to discharge the ammonium perchlorate crystals in the ammonium perchlorate crystallization tank 1;

[0054] First drive motor 7: fixed at the lower end of the ammonium perchlorate crystallization tank 1, providing power for the stirring assembly;

[0055] First gear 8: connected to the output end of the first drive motor 7, driving the second gear 11 to move by rotating;

[0056] Rotating disc 9: rotates inside the ammonium perchlorate crystallization tank 1, the upper end of which is conical, facilitating the flow of ammonium perchlorate crystals to the edge, improving the efficiency of crystal discharge;

[0057] Rotating shaft 10: rotates inside the rotating disc 9, there are two, symmetrically arranged on both sides of the rotating disc 9, used to install the second gear 11 and the spiral stirring blade 12;

[0058] Second gear 11: fixed on the surface of the rotating shaft 10, meshing with the first gear 8 and the gear ring 20, driving the spiral stirring blade 12 to rotate during rotation and revolution;

[0059] Spiral stirring blade 12: fixed on the surface of the rotating shaft 10, there are two, the spiral directions are opposite and inclined downward from the middle to the edge; through rotation and revolution, the saturated ammonium perchlorate solution in the ammonium perchlorate crystallization tank 1 is stirred, increasing the contact area between the solution and the inner wall of the tank, improving the heat exchange efficiency, promoting the uniform distribution of ammonium perchlorate and heat transfer, reducing crystal agglomeration, and promoting uniform crystal growth;

[0060] Second drive motor 13: fixed on the upper end of the ammonium perchlorate crystallization tank 1, providing power for the crystallization tank cleaning assembly;

[0061] Movable frame 14: connected to the output end of the second drive motor 13, rotating inside the ammonium perchlorate crystallization tank 1, driving the connecting rod 16 and the spiral blade 17 to rotate;

[0062] Movable ring 15: rotates inside the ammonium perchlorate crystallization tank 1, the surface is provided with filter holes 18 and through grooves 19, through rotation, the filter holes 18 are aligned with the liquid discharge pipe 5 and the through grooves 19 are aligned with the discharge pipe 6, realizing the separation and discharge of the solution and the crystals;

[0063] Connecting rod 16: connects the movable frame 14 and the movable ring 15, scrapes the inner wall of the ammonium perchlorate crystallization tank 1 during rotation, removing the ammonium perchlorate crystals on the inner wall;

[0064] Spiral blade 17: connects the movable frame 14 and the movable ring 15, scrapes the inner wall of the ammonium perchlorate crystallization tank 1 during rotation, removing the ammonium perchlorate crystals on the inner wall;

[0065] Filter hole 18: provided on the surface of the movable ring 15, cooperates with the liquid discharge pipe 5, used for filtering the solution, realizing the separation of the solution and the crystals;

[0066] Through groove 19: provided on the surface of the movable ring 15, cooperates with the discharge pipe 6, used for discharging ammonium perchlorate crystals;

[0067] Gear ring 20: fixed inside the ammonium perchlorate crystallization tank 1, meshing with the second gear 11, making the second gear 11 rotate the rotating disc 9 during revolution.

[0068] The utility model embodiment has been explained in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiment, still can make various changes in the knowledge range of ordinary skill in the art who has possessed under the premise of not departing from the utility model tenet.

Claims

1. An apparatus for continuous crystallization of ammonium perchlorate, characterized in that: The ammonium perchlorate crystallization tank (1) is provided with a stirring assembly, a crystallization tank cleaning assembly and a cooling assembly. The stirring assembly is arranged in the interior of the ammonium perchlorate crystallization tank (1). The crystallization tank cleaning assembly is arranged in the interior of the ammonium perchlorate crystallization tank (1) and comprises a second driving motor (13) fixedly connected to the upper end of the ammonium perchlorate crystallization tank (1), the output end of the second driving motor (13) extending into the interior of the ammonium perchlorate crystallization tank (1) and being fixedly connected with a movable frame (14), and the movable frame (14) being rotatably connected with the ammonium perchlorate crystallization tank (1). The interior of the ammonium perchlorate crystallization tank (1) is rotatably connected with a movable ring (15), four connecting rods (16) and four spiral blades (17) being fixedly connected between the movable frame (14) and the movable ring (15), and the surface of the movable ring (15) being provided with filter holes (18) and through grooves (19).

2. The apparatus for continuous crystallization of ammonium perchlorate according to claim 1, characterized in that: The stirring assembly comprises a first driving motor (7) fixedly connected to the lower end of the ammonium perchlorate crystallization tank (1), the output end of the first driving motor (7) extending into the interior of the ammonium perchlorate crystallization tank (1) and being fixedly connected with a first gear (8). The interior of the ammonium perchlorate crystallization tank (1) is rotatably connected with a rotating disc (9), the interior of the rotating disc (9) is rotatably connected with a rotating shaft (10), the surface of the rotating shaft (10) is fixedly connected with a second gear (11), and the surface of the rotating shaft (10) is fixedly connected with spiral stirring blades (12). The interior of the ammonium perchlorate crystallization tank (1) is fixedly connected with a tooth ring (20), the first gear (8) and the second gear (11) are engaged, and the second gear (11) and the tooth ring (20) are engaged.

3. The apparatus for continuous crystallization of ammonium perchlorate according to claim 1, characterized in that: The surface of the ammonium perchlorate crystallization tank (1) is fixedly connected with a sleeve (2), the interior of the sleeve (2) is hollow, the interior of the sleeve (2) is fixedly connected with a cooling water pipe (3), and the cooling water pipe (3) is spiral-shaped and extends out of the sleeve (2) at both ends.

4. The apparatus for continuous crystallization of ammonium perchlorate according to claim 2, characterized in that: The number of the rotating shaft (10), the second gear (11) and the spiral stirring blades (12) is two, respectively symmetrically arranged on both sides of the rotating disc (9).

5. The apparatus for continuous crystallization of ammonium perchlorate according to claim 2, characterized in that: The upper end of the rotating disc (9) is conical.

6. The apparatus for continuous crystallization of ammonium perchlorate according to claim 2, characterized in that: The spiral directions of the two spiral stirring blades (12) are opposite and both downwardly inclined from the middle to the edge.

7. The apparatus for continuous crystallization of ammonium perchlorate according to claim 1, characterized in that: The surface of the ammonium perchlorate crystallization tank (1) is fixedly connected with a liquid discharge pipe (5) and a material discharge pipe (6), and the liquid discharge pipe (5) and the material discharge pipe (6) are arranged in an up-and-down staggered manner on the surface of the ammonium perchlorate crystallization tank (1).

8. The apparatus for continuous crystallization of ammonium perchlorate according to claim 1, characterized in that: The upper end of the ammonium perchlorate crystallization tank (1) is fixedly connected with a feeding pipe (4).

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