Rapid crystallization device and method for ammonium perchlorate

Abstract

The invention relates to the technical field of separation, and discloses a rapid ammonium perchlorate crystallization device and method.The rapid ammonium perchlorate crystallization device comprises an evaporation tank, a supporting column is fixedly installed at the top of the evaporation tank, and the supporting column is fixedly sleeved with water absorption sponge which covers the whole inner wall of the top of the evaporation tank; a driving assembly for driving the water absorption sponge to be folded or unfolded in an umbrella shape by taking the supporting column as a central shaft is mounted on the evaporation tank; a stirring shaft is mounted in the evaporation tank; a wringing assembly is mounted in the evaporation tank and is in transmission fit with the stirring shaft; a funnel-shaped water collecting groove is formed in the top end of the stirring shaft, and a water flowing channel is formed in the stirring shaft; the water flowing channel penetrates through the stirring shaft along the axial direction of the stirring shaft, and is communicated with the water collecting groove. The water absorption sponge can completely cover the inner wall of the top of the evaporation tank, so that steam is effectively prevented from being condensed on the inner wall of the top of the evaporation tank, the phenomenon of secondary falling is avoided, the separation and crystallization efficiency is greatly improved, and use is convenient.

Description

Technical Field

[0001] The present invention relates to the field of separation technology, and in particular to an ammonium perchlorate rapid crystallization device and method. Background Art

[0002] Ammonium perchlorate, one of the most commonly used oxidizers in solid propellants, appears as deliquescent white crystals and is primarily used in the production of gunpowder, fireworks, and analytical reagents. Crystallization processes for ammonium perchlorate include cooling crystallization, supercritical crystallization, and evaporative crystallization. Evaporative crystallization involves heating and evaporating an ammonium perchlorate solution under normal or reduced pressure to supersaturate the solution, thereby precipitating ammonium perchlorate crystals.

[0003] Publication No.: CN118987642A describes a phosphate refining and purification device, comprising an evaporation tank, a resistor seat being sealed at the top of the evaporation tank, a plurality of resistor tubes being arranged at the bottom of the resistor seat, the resistor tubes being located inside the evaporation tank, a partition being arranged between the evaporation tank and the resistor seat, the partition dividing the interior of the evaporation tank into a water accumulation chamber and an evaporation chamber, the resistor tubes passing through the partition and forming a seal between the resistor tubes and the partition, a plurality of water squeezing tubes being arranged on the partition, the bottom of the water squeezing tubes being connected to the partition and the top of the water squeezing tubes being a closed structure, a sponge being arranged in the water squeezing tubes, the top of the sponge being fixedly connected to the top of the water squeezing tubes, the top of the water squeezing tubes being circular A number of water squeezing holes are arranged in the circumferential direction, a steam exhaust hole is arranged on the resistor seat, a driving mechanism is arranged in the steam exhaust hole, an electric push rod is arranged on the upper side of the resistor seat, the electric push rod is connected to the driving mechanism, an extrusion mechanism is arranged on the driving mechanism, the extrusion mechanism is slidably arranged on the resistor tube, a through hole is arranged at the center of the partition, the driving mechanism passes through the through hole, the driving mechanism is fixed to the resistor tube through a fixed plate, an upper limit mechanism is arranged at the bottom of the driving mechanism, a lower limit mechanism is arranged in the evaporation chamber, a stirring mechanism is arranged between the upper limit mechanism and the lower limit mechanism, and one end of the driving mechanism passes through the upper limit mechanism, the stirring mechanism and the lower limit mechanism.

[0004] Based on the above technical features, the following problems arise: in the prior art, multiple spaced-apart sponges are used to absorb the evaporated and separated water vapor, which cannot completely cover the entire top inner wall of the evaporator. As a result, water droplets condense on the uncovered top inner wall, which in turn causes a secondary fallback phenomenon. In addition, because the prior art requires squeezing the sponge through a squeezing mechanism, it is impossible to use a whole piece of sponge to cover the top inner wall of the evaporator. As a result, the overall separation and crystallization efficiency is not improved significantly, and the use is inconvenient.

[0005] Therefore, it is necessary to solve the above problems through a rapid crystallization device and method of ammonium perchlorate. Summary of the Invention

[0006] The object of the present invention is to provide an ammonium perchlorate rapid crystallization device and method to solve the problems raised in the above background technology.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an ammonium perchlorate rapid crystallization device, comprising an evaporation tank, wherein a vertical support column is fixedly mounted on the top inner wall of the evaporation tank, and a water-absorbing sponge is fixedly sleeved on the support column, and the water-absorbing sponge covers the entire top inner wall of the evaporation tank; The evaporation tank is equipped with a driving assembly for driving the water-absorbing sponge to fold or unfold like an umbrella with the support column as the central axis; A stirring shaft with stirring blades is installed in the evaporation tank, and the stirring shaft is coaxially opposed to the support column; A wringing assembly is installed in the evaporation tank, and the wringing assembly is used to twist the water-absorbing sponge in the retracted state, and the wringing assembly is in transmission cooperation with the stirring shaft; A funnel-shaped water collecting tank is provided at the top of the stirring shaft, and a water flow channel is provided inside the stirring shaft; the water flow channel penetrates the stirring shaft along the axial direction of the stirring shaft, and the water flow channel is connected to the water collecting tank; The bottom end of the stirring shaft passes through the evaporation tank; A movable plate is installed at the bottom of the evaporation tank, and the stirring shaft is rotatably installed on the movable plate; a first power member that drives the movable plate to move up and down is installed at the bottom of the evaporation tank, and a second power member that drives the stirring shaft to rotate is installed on the movable plate.

[0008] Preferably, the driving assembly includes a pump body and a plurality of hoses; the pump body is fixedly mounted on the top of the evaporation tank, and a water flow groove is axially provided in the support column; the water suction port of the pump body is externally connected to a water tank, and the water outlet of the pump body is connected to the groove of the water flow groove; one end of each hose is closed, and the other end of each hose is fixedly connected to the support column and is connected to the water flow groove in the support column along the radial direction of the support column; the plurality of hoses are evenly distributed along the circumference of the support column, and each hose is built into a water-absorbing sponge.

[0009] Preferably, the wringing assembly includes a first magnet block and a metal plate with water-permeable holes; the metal plate is fixed in the water collecting tank at the top of the stirring shaft; a first magnet block is fixedly provided at the closed end of each hose, and each first magnet block is magnetically engaged with the metal plate.

[0010] Preferably, a plurality of second magnet blocks are built into the edge of the water-absorbing sponge away from the support column, the plurality of second magnet blocks are evenly distributed along the circumference of the support column, and each second magnet block is magnetically engaged with the metal plate.

[0011] Preferably, a first rubber layer is fixedly provided on each first magnet block, and a second rubber layer is fixedly provided on each second magnet block.

[0012] Preferably, the first power member comprises a hydraulic cylinder, which is fixedly mounted on the bottom of the evaporation tank; a telescopic shaft of the hydraulic cylinder is vertically downward and fixedly connected to the movable plate.

[0013] Preferably, the second power member includes a motor, which is fixedly mounted on the movable plate; an outer gear ring is fixedly mounted on the bottom end of the stirring shaft, and a gear is fixedly mounted on the output shaft of the motor; the gear is meshed with the outer gear ring.

[0014] Preferably, a feed pipe and an exhaust pipe are fixed and connected to the upper side of the evaporation tank, and a discharge pipe is fixed and connected to the bottom of the evaporation tank.

[0015] Preferably, a heating plate is fixedly installed in the tank body of the evaporation tank.

[0016] A method for rapid crystallization of ammonium perchlorate comprises the following steps: first, a driving component drives a water-absorbing sponge to expand in an umbrella shape with a support column as the central axis; after the water-absorbing sponge expands, it covers the top inner wall of an evaporation tank; Next, the evaporation tank heats the ammonium perchlorate solution inside, and the water in the ammonium perchlorate solution evaporates into water vapor; at this time, the ammonium perchlorate and the water are separated; at the same time, the water vapor rises and is absorbed by the absorbent sponge; During the separation of ammonium perchlorate and water, the second power member drives the stirring shaft to rotate, and the stirring shaft drives the stirring blades to stir the ammonium perchlorate solution; When the ammonium perchlorate solution is completely evaporated and crystallized, the second power member is shut down; at the same time, the driving assembly drives the water-absorbing sponge to fold into an umbrella shape with the support column as the central axis; After the water-absorbing sponge is completely folded into an umbrella shape, the first power member starts and drives the movable plate to move upward; the movable plate drives the stirring shaft to move upward and contact the water-absorbing sponge; Afterwards, the first power member is turned off and the second power member is started again, the second power member drives the stirring shaft to rotate; the stirring shaft drives the wringing assembly to twist the water-absorbing sponge; When the water-absorbing sponge is twisted, the water inside is squeezed out; the squeezed water gathers in the water collecting tank at the top of the stirring shaft; finally, the water in the water collecting tank flows out through the water flow channel.

[0017] The technical effects and advantages of the present invention are as follows: the water-absorbing sponge of the present invention can completely cover the top inner wall of the evaporation tank, thereby effectively preventing the condensation of steam on the top inner wall of the evaporation tank and avoiding the phenomenon of secondary falling back, greatly improving the separation and crystallization efficiency, and being easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the interior of the evaporation tank of the present invention; Figure 2 This is a schematic diagram of the interior of the water-absorbing sponge of the present invention; Figure 3 Schematic diagram of the water-absorbing sponge of the present invention; Figure 4 A schematic diagram of a hose according to the present invention; Figure 5 is a schematic diagram of a first magnet block of the present invention; Figure 6 is a schematic diagram of a second magnet block of the present invention; Figure 7 This is a schematic diagram of the interior of the stirring shaft of the present invention; Figure 8 This is a schematic diagram of the sealing method between the stirring shaft and the bottom of the evaporation tank of the present invention; Figure 9 is a schematic diagram of a metal plate of the present invention; Figure 10 It is a schematic diagram of splicing the water-absorbing sponge of the present invention.

[0019] In the figure: 1. Evaporator; 2. Feed pipe; 3. Discharge pipe; 4. Exhaust pipe; 5. Heating plate; 6. Support column; 7. Pump body; 8. Water-absorbing sponge; 9. Hose; 10. First magnet block; 11. First rubber layer; 12. Second magnet block; 13. Second rubber layer; 14. Stirring shaft; 15. Stirring blade; 16. Metal plate; 17. Water flow channel; 18. Outer gear ring; 19. Movable plate; 20. Hydraulic cylinder; 21. Motor; 22. Gear; 23. Drain pipe. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0021] The present invention provides Figures 1 to 10 The apparatus for rapid crystallization of ammonium perchlorate shown includes an evaporator 1. In this embodiment, the evaporator 1 is a vertically mounted circular tank. A cavity is defined within the evaporator 1, within which a heating plate 5 is fixedly mounted. The position and coverage of the heating plate 5 are determined based on actual use and production requirements.

[0022] A discharge pipe 3 is fixedly provided at the bottom of the evaporation tank 1 and is in communication with the evaporation tank 1. A control valve is installed in the discharge pipe 3 to control the opening and closing of the discharge pipe 3.

[0023] A feed pipe 2 and an exhaust pipe 4 are fixedly installed on the upper side of the evaporator 1. Both the feed pipe 2 and the exhaust pipe 4 are connected to the evaporator 1. In addition, control valves are installed in the feed pipe 2 and the exhaust pipe 4 to control the opening and closing of the feed pipe 2 and the exhaust pipe 4.

[0024] A stirring shaft 14 is coaxially arranged vertically in the evaporation tank 1 , and a stirring blade 15 is fixedly mounted on the stirring shaft 14 . The stirring blade 15 is used to stir the ammonium perchlorate solution during evaporation and crystallization to accelerate the evaporation and crystallization rate.

[0025] A movable plate 19 that can move up and down is installed at the bottom of the evaporation tank 1 . The movable plate 19 is a horizontal plate and is driven by a first power member fixedly installed at the bottom of the evaporation tank 1 .

[0026] Specifically, the first power member includes two hydraulic cylinders 20, each with its telescopic shaft pointing vertically downward. The cylinder body of each hydraulic cylinder 20 is fixedly mounted on the bottom of the evaporator tank 1. The movable plate 19 is fixedly connected to the telescopic shafts of the two hydraulic cylinders 20.

[0027] The stirring shaft 14 is located between the two hydraulic cylinders 20 and its bottom end passes downwardly out of the evaporation tank 1. The bottom end of the stirring shaft 14 is rotatably connected to the movable plate 19. The movable plate 19 is provided with a second power member for driving the stirring shaft 14 to rotate.

[0028] Specifically, the second power member includes a motor 21, which is fixedly mounted on the movable plate 19. The bottom end of the stirring shaft 14 is fixedly sleeved with an outer gear ring 18, and the output shaft of the motor 21 is fixedly sleeved with a gear 22. The gear 22 meshes with the outer gear ring 18.

[0029] A support column 6 is coaxially fixed to the top of the evaporation tank 1 . The support column 6 penetrates downward into the evaporation tank 1 and is coaxially opposite to the stirring shaft 14 .

[0030] A disc-shaped water-absorbing sponge 8 is fixedly mounted on the support column 6, and the water-absorbing sponge 8 covers the entire top inner wall of the evaporation tank 1. The evaporation tank 1 is equipped with a driving component that drives the water-absorbing sponge 8 to fold or unfold like an umbrella with the support column 6 as the central axis.

[0031] Specifically, the drive assembly includes a pump body 7 and multiple hoses 9. The pump body 7 is fixedly mounted on the top of the evaporator 1. A water flow channel is axially defined within the support column 6. The channel's opening is located at the top of the support column 6 and faces vertically upward. The pump body 7's water inlet is connected to an external water tank, and the pump body's water outlet is connected to the channel's opening. In this embodiment, the pump body 7 is a symmetrical, dual-gear, externally meshing gear pump capable of bidirectional liquid transport. In this embodiment, the fluid medium is water.

[0032] In order to ensure that the fluid medium in the hose 9 does not flow back, an electromagnetic control valve is installed at the connection between the water outlet of the pump body 7 and the notch of the water flow trough to control the opening and closing.

[0033] One end of each hose 9 is closed, and the other end of each hose 9 is fixedly connected to the support column 6 and communicates with the water flow channel inside the support column 6 along the radial direction of the support column 6.

[0034] A plurality of hoses 9 are evenly distributed along the circumference of the support column 6 , and each hose 9 is built into the water-absorbing sponge 8 .

[0035] In this embodiment, the hose 9 can be a hydraulic hose or the like as long as it can be stretched straight after being filled with high-pressure liquid and can be bent or collapsed in its natural state. At the same time, in order to facilitate the folding and unfolding of the water-absorbing sponge 8, the water-absorbing sponge 8 can be made up of multiple fan-shaped sponges, and the multiple fan-shaped sponges correspond to multiple hoses 9 one by one, and each hose 9 is built into the corresponding fan-shaped sponge block. The connection method between each hose 9 and the fan-shaped sponge block, the connection method between each fan-shaped sponge block and the support column 6, and the connection method between two adjacent fan-shaped sponge blocks can all be selected according to actual usage by mechanical connection, connecting belt connection, etc. The above all belong to the existing technology and will not be described in detail here.

[0036] A wringing assembly is installed in the evaporation tank 1 , and the wringing assembly is used to twist the water-absorbing sponge 8 in the retracted state, and the wringing assembly is in transmission cooperation with the stirring shaft 14 .

[0037] Specifically, the wringing assembly includes a first magnet block 10 and a metal plate 16. The metal plate 16 is fixed to the top of the stirring shaft 14. A first magnet block 10 is fixed to the closed end of each hose 9, and each first magnet block 10 is magnetically engaged with the metal plate 16.

[0038] The top diameter of the stirring shaft 14 matches the maximum circumferential radius formed by the bottom edge of the water-absorbing sponge 8 in the retracted state. The top of the stirring shaft 14 is in the shape of an inverted truncated cone.

[0039] The top of the stirring shaft 14 is coaxially provided with a funnel-shaped water collecting tank, the notch of which faces upward. A metal plate 16 is fixed in the water collecting tank, and a water permeable hole for water flow is provided on the metal plate 16.

[0040] A water channel 17 is axially defined within the agitator shaft 14. This channel is located below and communicates with the water collection trough. Channel 17 extends downwardly through the agitator shaft 14 and onto the movable plate 19. A drain pipe 23 is fixed to the bottom of the movable plate 19 and communicates with the water channel 17.

[0041] A plurality of second magnet blocks 12 are built into the water-absorbing sponge 8 , and the plurality of second magnet blocks 12 are evenly distributed along the circumference of the support column 6 at the edge of the water-absorbing sponge 8 away from the support column 6 , and each second magnet block 12 is magnetically engaged with the metal plate 16 .

[0042] In this embodiment, the first magnet blocks 10 and the second magnet blocks 12 are arranged alternately along the circumference of the support column 6. That is, a second magnet block 12 is disposed between two adjacent first magnet blocks 10. When the absorbent sponge 8 is unfolded, the distance between adjacent first magnet blocks 10 and second magnet blocks 12 is sufficiently large that the force between them is insufficient to attract or repel them.

[0043] A first rubber layer 11 is fixedly mounted on each first magnet block 10 , and a second rubber layer 13 is fixedly mounted on each second magnet block 12 . The first rubber layer 11 and the second magnet block 12 are both used to increase friction with the metal plate 16 .

[0044] It should be noted that the sealing mechanism between the agitator shaft 14 and the bottom tank body of the evaporator 1 comprises two parts: a sliding seal and a rotating seal. Specifically, a rotating ring is mounted on the agitator shaft 14, with which the agitator shaft 14 engages both in a sealing, sliding, and transmission manner; the rotating ring also rotates in conjunction with the bottom tank body of the evaporator 1.

[0045] The agitator shaft 14 and the rotating ring are sealed with a sliding seal. The transmission mechanism between the agitator shaft 14 and the rotating ring utilizes a protrusion-and-slide abutment transmission. Specifically, a slide groove is axially defined on the inner wall of the rotating ring and extends through the rotating ring. A long, strip-shaped protrusion is fixedly mounted axially on the agitator shaft 14, extending through the slide groove and slidingly engaging with it. The seal between the protrusion and the slide groove is a sliding seal. The seal between the rotating ring and the bottom of the evaporator 1 utilizes a rotating seal. Both the sliding and rotating seals utilize existing seals.

[0046] A method for rapid crystallization of ammonium perchlorate is disclosed, utilizing the aforementioned rapid crystallization apparatus. The method comprises the following steps: first, a control valve within feed pipe 2 opens feed pipe 2, a control valve within exhaust pipe 4 closes exhaust pipe 4, and a control valve within discharge pipe 3 closes discharge pipe 3. Next, ammonium perchlorate solution is added to evaporation tank 1 through feed pipe 2; after addition is complete, the control valve within feed pipe 2 closes feed pipe 2.

[0047] Next, pump 7 is activated, injecting water into all hoses 9 through the water channel within support column 6. Once filled with water, each hose 9 straightens, and all hoses 9 drive the absorbent sponges 8 to expand into a disc-like shape, centered around support column 6. Next, a solenoid-controlled valve closes the connection between the pump 7 outlet and the notch within the water channel, allowing the absorbent sponges 8 to cover the entire top inner wall of the evaporator 1.

[0048] At the same time, pump 7 is closed, the control valve in exhaust pipe 4 opens exhaust pipe 4, and heating plate 5 heats the ammonium perchlorate solution in evaporator 1. The water in the ammonium perchlorate solution then evaporates into water vapor, separating the ammonium perchlorate from the water. The water vapor rises, with some being discharged through exhaust pipe 4 and the rest being absorbed by absorbent sponge 8.

[0049] During the separation process of ammonium perchlorate and water, motor 21 is started, and the output shaft of motor 21 drives gear 22 to rotate. Gear 22 drives outer ring gear 18 to rotate, which in turn drives stirring shaft 14. Stirring shaft 14 drives stirring blades 15 to stir the ammonium perchlorate solution, thereby accelerating the evaporation rate.

[0050] When the ammonium chlorate solution has finished evaporating and crystallizing, the motor 21 is turned off. Next, the control valve in the discharge pipe 3 opens the discharge pipe 3, and the solution containing ammonium chlorate crystals flows out of the discharge pipe 3 and undergoes subsequent separation treatment. Afterwards, the electromagnetic control valve opens the connection between the water outlet of the pump body 7 and the notch of the water flow trough. Then the pump body 7 is started, and the pump body 7 pumps out the water in all the hoses 9 through the water flow trough in the support column 6. After the water in the hose 9 is reduced, the axial tension on the hose 9 is reduced. When the tension on all the hoses 9 is less than the sum of the gravity they are subjected to, all the hoses 9 bend or collapse. At this time, the water-absorbing sponge 8 is folded into an umbrella shape with the support column 6 as the central axis.

[0051] After the absorbent sponge 8 has completely collapsed into its umbrella shape, the pump body 7 is shut down and the two hydraulic cylinders 20 are activated. The telescopic shafts of the two hydraulic cylinders 20 retract upward, driving the movable plate 19 upward. The movable plate 19 pushes the stirring shaft 14 upward. The stirring shaft 14 drives the metal plate 16 upward until it contacts all first rubber layers 11 and all second rubber layers 13. At this point, all first magnet blocks 10 and all second magnet blocks 12 are attracted to the metal plate 16, and all first rubber layers 11 and all second rubber layers 13 are in contact with the metal plate 16. Simultaneously, the two hydraulic cylinders 20 are shut down and the motor 21 is restarted.

[0052] Next, the output shaft of motor 21, through gear 22 and outer ring gear 18, slowly rotates the stirring shaft 14 several times. The stirring shaft 14 then rotates the metal plate 16 several times. At this point, because all first magnets 10 and second magnets 12 are attracted to the metal plate 16, and all first rubber layers 11 and second rubber layers 13 are in contact with the metal plate 16, static friction initially forms between the metal plate 16 and the first and second rubber layers 11, 13. This static friction then propels the first and second rubber layers 11, 13 to orbit around the central axis of the stirring shaft 14 through a predetermined arc. During this process, each first rubber layer 11, 13 drives the corresponding first magnet 10 and second magnet 12 to orbit around the central axis of the stirring shaft 14 through a predetermined arc. In turn, each first magnet 10 drives the corresponding hose 9 to twist the absorbent sponge 8, squeezing the absorbent sponge 8 and, under the influence of gravity, dripping or flowing onto the metal plate 16.

[0053] The water dripping or flowing onto the metal plate 16 is collected in the water collecting tank on the stirring shaft 14 through the water permeable holes, and is finally discharged through the water flow channel 17 and the drain pipe 23 in sequence.

[0054] After the absorbent sponge 8 is wrung out, the motor 21 is shut down and the two hydraulic cylinders 20 are restarted. The telescopic shafts of the two hydraulic cylinders 20 extend downward and push the movable plate 19 downward. The movable plate 19 drives the stirring shaft 14 downward, and the stirring shaft 14 drives the metal plate 16 away from the first rubber layer 11 and the second rubber layer 13. When the metal plate 16 moves far enough away from all the first magnet blocks 10 and all the second magnet blocks 12, and the force of the magnetic attraction of the metal plate 16 by all the first magnet blocks 10 and all the second magnet blocks 12 is sufficiently weak and does not affect the subsequent movement of all the first magnet blocks 10 and all the second magnet blocks 12, the two hydraulic cylinders 20 are shut down.

[0055] It should be noted that, during the twisting process of the water-absorbing sponge 8, the adjacent first magnet blocks 10 and second magnet blocks 12 repel each other to prevent the water-absorbing sponge 8 from being twisted together and unable to be separated.

[0056] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An ammonium perchlorate rapid crystallization device, comprising an evaporation tank (1), characterized in that: A vertical support column (6) is fixedly mounted on the top inner wall of the evaporation tank (1), and a water-absorbing sponge (8) is fixedly sleeved on the support column (6), and the water-absorbing sponge (8) covers the entire top inner wall of the evaporation tank (1); The evaporation tank (1) is equipped with a driving component for driving the water-absorbing sponge (8) to fold or unfold in an umbrella shape with the support column (6) as the central axis; A stirring shaft (14) with stirring blades (15) is installed in the evaporation tank (1), and the stirring shaft (14) is coaxially opposed to the support column (6); A wringing assembly is installed in the evaporation tank (1), and the wringing assembly is used to twist the water-absorbing sponge (8) in the retracted state, and the wringing assembly is in transmission cooperation with the stirring shaft (14); A funnel-shaped water collecting tank is provided at the top end of the stirring shaft (14), and a water flow channel (17) is provided inside the stirring shaft (14); the water flow channel (17) penetrates the stirring shaft (14) axially, and the water flow channel (17) is connected to the water collecting tank; The bottom end of the stirring shaft (14) passes through the evaporation tank (1); A movable plate (19) is installed at the bottom of the evaporation tank (1), and the stirring shaft (14) is rotatably installed on the movable plate (19); a first power member for driving the movable plate (19) to move up and down is installed at the bottom of the evaporation tank (1), and a second power member for driving the stirring shaft (14) to rotate is installed on the movable plate (19).

2. A rapid ammonium perchlorate crystallization device according to claim 1, characterized in that: The driving assembly comprises a pump body (7) and a plurality of hoses (9); the pump body (7) is fixedly mounted on the top of the evaporation tank (1), and a water flow groove is provided in the axial direction of the support column (6); the water suction port of the pump body (7) is connected to a water tank, and the water outlet of the pump body (7) is communicated with the groove of the water flow groove; one end of each hose (9) is closed, and the other end of each hose (9) is fixedly connected to the support column (6) and is communicated with the water flow groove in the support column (6) along the radial direction of the support column (6); the plurality of hoses (9) are evenly distributed along the circumference of the support column (6), and each hose (9) is built into the water-absorbing sponge (8).

3. A kind of ammonium perchlorate rapid crystallization device according to claim 2, it is characterized in that: The wringing assembly comprises a first magnet block (10) and a metal plate (16) with water-permeable holes; the metal plate (16) is fixed in a water collecting tank at the top end of the stirring shaft (14); a first magnet block (10) is fixedly provided at the closed end of each hose (9), and each first magnet block (10) is magnetically engaged with the metal plate (16).

4. A rapid ammonium perchlorate crystallization device according to claim 3, characterized in that: A plurality of second magnet blocks (12) are built into the edge of the water-absorbing sponge (8) away from the support column (6), the plurality of second magnet blocks (12) are evenly distributed along the circumference of the support column (6), and each second magnet block (12) is magnetically engaged with the metal plate (16).

5. A rapid ammonium perchlorate crystallization device according to claim 4, characterized in that: A first rubber layer (11) is fixedly provided on each first magnet block (10), and a second rubber layer (13) is fixedly provided on each second magnet block (12).

6. A rapid ammonium perchlorate crystallization device according to claim 1, characterized in that: The first power member comprises a hydraulic cylinder (20), which is fixedly mounted on the bottom of the evaporation tank (1); the telescopic shaft of the hydraulic cylinder (20) faces vertically downward and is fixedly connected to the movable plate (19).

7. A rapid ammonium perchlorate crystallization device according to claim 1, characterized in that: The second power member comprises a motor (21), which is fixedly mounted on the movable plate (19); an outer gear ring (18) is fixedly sleeved on the bottom end of the stirring shaft (14); a gear (22) is fixedly sleeved on the output shaft of the motor (21); and the gear (22) is meshed with the outer gear ring (18).

8. A rapid ammonium perchlorate crystallization device according to claim 1, characterized in that: A feed pipe (2) and an exhaust pipe (4) are fixed and connected to the upper side of the evaporation tank (1), and a discharge pipe (3) is fixed and connected to the bottom of the evaporation tank (1).

9. A rapid ammonium perchlorate crystallization device according to claim 1, characterized in that: A heating plate (5) is fixedly installed in the tank body of the evaporation tank (1).

10. A method for rapid crystallization of ammonium perchlorate, using the ammonium perchlorate rapid crystallization device according to any one of claims 1 to 9, characterized in that: The method comprises the following steps: first, a driving component drives the water-absorbing sponge (8) to unfold in an umbrella shape with the support column (6) as the central axis; after the water-absorbing sponge (8) unfolds, it covers the top inner wall of the evaporation tank (1); Next, the evaporation tank (1) heats the ammonium perchlorate solution inside, and the water in the ammonium perchlorate solution evaporates into water vapor; at this time, the ammonium perchlorate is separated from the water; at the same time, the water vapor rises and is absorbed by the absorbent sponge (8); During the process of separating ammonium perchlorate from water, the second power member drives the stirring shaft (14) to rotate, and the stirring shaft (14) drives the stirring blade (15) to stir the ammonium perchlorate solution; When the ammonium perchlorate solution is evaporated and crystallized, the second power member is shut down; at the same time, the driving component drives the water-absorbing sponge (8) to be folded into an umbrella shape with the support column (6) as the central axis; After the water-absorbing sponge (8) is completely folded into an umbrella shape, the first power member is activated and drives the movable plate (19) to move upward; the movable plate (19) drives the stirring shaft (14) to rise and contact the water-absorbing sponge (8); Afterwards, the first power member is turned off and the second power member is started again, the second power member drives the stirring shaft (14) to rotate; the stirring shaft (14) drives the wringing assembly to twist the water-absorbing sponge (8); When the water-absorbing sponge (8) is twisted, the water inside is squeezed out; the squeezed water is collected in the water collecting tank at the top of the stirring shaft (14); and finally the water in the water collecting tank flows out through the water flow channel (17).

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