Ammonium perchlorate mother liquor rapid evaporation salt device

Abstract

The application discloses a rapid evaporation salt collecting device for ammonium perchlorate mother liquor and relates to the technical field of evaporation salt collecting devices. The device comprises an operation table, the upper surface of the operation table is fixedly connected with an inner barrel, the outer part of the inner barrel is fixedly connected with an outer barrel, a heating cavity is formed between the inner barrel and the outer barrel, a coil pipe is arranged in the heating cavity, the coil pipe is fixedly connected to the outer wall of the inner barrel, the top end of the coil pipe is in communication with the heating cavity, a rotary pipe is arranged in the bottom of the inner barrel, a rotary joint is in communication with the bottom of the rotary pipe, a connecting pipe is in communication with the bottom of the rotary joint, and the end, which is away from the rotary joint, of the connecting pipe is in communication with the coil pipe. The rapid evaporation salt collecting device for ammonium perchlorate mother liquor drives the stirring blade to rotate through the sliding sleeve, the stirring blade stirs the ammonium perchlorate mother liquor, the temperature of the ammonium perchlorate mother liquor at all positions in the inner barrel is basically uniform, the phenomenon that the mother liquor is unevenly heated is avoided, the evaporation time is shortened, and the evaporation efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of evaporation salt extraction equipment technology, and particularly to a rapid evaporation salt extraction equipment for ammonium perchlorate mother liquor. Background Technology

[0002] Ammonium perchlorate is an inorganic compound with the chemical formula NH₄ClO₄. It is a white crystalline powder and is hygroscopic. Ammonium perchlorate is a strong oxidizing agent and will explode when mixed with reducing agents, organic matter, flammable materials such as sulfur, phosphorus, or metal powders. Contact with strong acids poses a risk of combustion and explosion. It is used in the manufacture of explosives and fireworks, and as an analytical reagent.

[0003] In the preparation of ammonium perchlorate, the ammonium perchlorate solution needs to be evaporated and crystallized, and then the water is removed using a centrifuge to obtain ammonium perchlorate crystals. In existing evaporation salt collection devices, the solution inside the tank is usually in a static state during operation, which easily leads to uneven heating and results in low evaporation and crystallization efficiency.

[0004] Therefore, it is necessary to invent a rapid evaporation salt collection device for ammonium perchlorate mother liquor to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a rapid evaporation and salt collection device for ammonium perchlorate mother liquor, to solve the problem mentioned in the background art that in the preparation of ammonium perchlorate, it is necessary to evaporate and crystallize the ammonium perchlorate solution, and then use a centrifuge to remove water to obtain ammonium perchlorate crystals. In existing evaporation and salt collection devices, the solution inside the tank is usually in a static state during use, which easily leads to uneven heating and low evaporation and crystallization efficiency.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a rapid evaporation salt collection device for ammonium perchlorate mother liquor, comprising an operating platform, an inner barrel fixedly connected to the upper surface of the operating platform, an outer barrel fixedly connected to the outside of the inner barrel, a heating chamber formed between the inner barrel and the outer barrel, a feeding pipe fixedly connected to the outer barrel and communicating with the inner barrel, a coil installed inside the heating chamber and fixedly connected to the outer wall of the inner barrel, the top end of the coil communicating with the heating chamber, a drain pipe fixedly connected to the bottom of the side wall of the outer barrel and communicating with the heating chamber, a rotating pipe passing through the bottom of the inner barrel and rotatably connected to the inner barrel, a circular hole for the rotating pipe to pass through the inside of the operating platform, a rotary joint connected to the bottom of the rotating pipe, a connecting pipe connected to the bottom of the rotary joint, the end of the connecting pipe away from the rotary joint communicating with the coil, an agitator assembly cooperating with the rotating pipe installed inside the inner barrel, and a drive assembly for rotating the rotating pipe installed at the bottom of the operating platform.

[0007] Preferably, the agitation assembly includes a sliding sleeve and a stirring blade, the sliding sleeve being slidably connected to the outside of the rotating tube, and the stirring blade being fixedly connected to the outer wall of the sliding sleeve.

[0008] Preferably, a groove is formed on the outer wall of the rotating tube, and a slider is fixedly connected to the inner wall of the sliding sleeve, the slider being slidably connected inside the groove.

[0009] Preferably, the drive assembly includes a motor, a first gear, and a second gear. The motor is fixedly connected to the lower surface of the operating table, the first gear is fixedly connected to the drive shaft of the motor, and the second gear is fixedly connected to the rotating tube. The second gear meshes with the first gear.

[0010] Preferably, a sliding plate is slidably connected inside the inner tub, the sliding plate is located below the sliding sleeve, and a hot air chamber is formed between the sliding plate and the bottom of the inner tub. An electric push rod is fixedly connected to the lower surface of the operating table. There are two electric push rods, which are symmetrically distributed. A circular hole is provided inside the operating table and at the bottom of the inner tub for the extension and retraction end of the electric push rod to pass through. The sliding plate is fixedly connected to the extension and retraction end of the electric push rod. A first air pipe is connected to the bottom of the inner tub. A circular hole is provided inside the operating table for the first air pipe to pass through. A first one-way valve is fixedly installed on the first air pipe. A lid is snapped onto the top of the inner tub, and a circular hole is provided inside the lid for a rotating pipe to pass through.

[0011] Preferably, a processing tank is fixedly connected to the upper surface of the operating table, and a water outlet is provided at the bottom of the side wall of the processing tank. A partition is fixedly connected inside the processing tank, and a through hole is provided inside the partition. The partition divides the inner cavity of the processing tank into a recovery chamber and a condensation chamber. The recovery chamber is located above the condensation chamber. A condensation plate is fixedly installed inside the condensation chamber. A first connecting component is provided between the processing tank and the lid hopper, and a second connecting component is provided between the processing tank and the inner tank.

[0012] Preferably, the first connecting component includes a first vertical cylinder, a third air pipe, a second vertical cylinder, and a fourth air pipe. The first vertical cylinder passes through the inside of the lid hopper and is fixedly connected to the lid hopper. One end of the third air pipe is connected to the first vertical cylinder, and the other end of the third air pipe is connected to the recovery chamber. The second vertical cylinder passes through the inside of the lid hopper and is fixedly connected to the lid hopper. One end of the fourth air pipe is connected to the second vertical cylinder, and the other end of the fourth air pipe is connected to the condensation chamber.

[0013] Preferably, a first solenoid valve is fixedly installed on the third air pipe, a second solenoid valve is fixedly installed on the fourth air pipe, and a temperature sensor is fixedly connected to the upper surface of the slide plate.

[0014] Preferably, the second communication component includes a second air pipe and a second one-way valve. One end of the second air pipe is connected to the hot air chamber, and the other end of the second air pipe is connected to the recovery chamber. The second one-way valve is fixedly installed on the second air pipe.

[0015] Preferably, an air inlet pipe is provided inside the lid, the air inlet pipe is fixedly connected to the lid, a third solenoid valve is fixedly installed on the air inlet pipe, an air outlet pipe is also provided inside the lid, the air outlet pipe is fixedly connected to the lid, a fourth solenoid valve is fixedly installed on the air outlet pipe, and a pressure sensor is fixedly connected to the lower surface of the lid.

[0016] The technical effects and advantages of this invention are as follows:

[0017] 1. The motor rotation drives the first gear to rotate. Since the second gear meshes with the first gear, the rotation of the first gear drives the rotation of the second gear, which in turn drives the rotating tube to rotate. With the cooperation of the sliding groove on the outer wall of the rotating tube and the slider on the inner wall of the sliding sleeve, the rotation of the rotating tube drives the stirring blade to rotate through the sliding sleeve. The stirring blade agitates the ammonium perchlorate mother liquor, and during the rotation of the stirring blade, its own heat is synchronously transferred to the ammonium perchlorate mother liquor, thereby making the temperature of the ammonium perchlorate mother liquor in various parts of the inner tank basically uniform, thus avoiding uneven heating of the mother liquor, shortening the evaporation time, and improving the evaporation efficiency.

[0018] 2. High-temperature steam from the factory's high-temperature steam pipeline enters the rotary tube, and then enters the coil inside the heating chamber through the rotary joint and connecting pipe. The coil heats up and conducts the heat to the inner barrel wall, causing the temperature of the inner barrel to rise, which in turn heats the ammonium perchlorate mother liquor inside. The water in the ammonium perchlorate mother liquor turns into water vapor after being heated and floats to the upper part of the inner barrel. The high-temperature steam inside the coil is discharged from its top opening and directly enters the heating chamber, so that the heat can be reused. After settling, it is discharged through the drain pipe.

[0019] 3. As the sliding plate moves up and down inside the inner barrel, it drives the stirring blades to move up and down through the sliding sleeve, expanding the stirring range and improving the uniformity of heating. At the same time, in conjunction with the first connecting component, the first solenoid valve, the second solenoid valve, and the temperature sensor, the high-temperature steam generated by the heated ammonium perchlorate mother liquor is pressed into the condensation chamber of the treatment tank for rapid condensation. It can also draw the uncondensed steam into the inner barrel for reheating and evaporation, further improving the evaporation efficiency.

[0020] 4. After the evaporation operation is completed, the telescopic end of the electric push rod extends, driving the sliding plate to move upward inside the inner barrel. As the sliding plate moves upward, it will push and scrape the crystals attached to the inner wall of the inner barrel, causing the crystals to slide onto the sliding plate. When the telescopic end of the electric push rod is fully extended, the sliding plate is close to the opening of the inner barrel, making it convenient for the operator to collect the crystals without having to clean the inner wall of the inner barrel again, thus improving processing efficiency. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the rapid evaporation salt collection device for ammonium perchlorate mother liquor according to the present invention.

[0022] Figure 2 This is a schematic diagram of the rapid evaporation salt collection device for ammonium perchlorate mother liquor of the present invention from another perspective.

[0023] Figure 3 For the present invention Figure 2 Enlarged structural diagram at point A in the middle.

[0024] Figure 4 This is a cross-sectional structural schematic diagram of the rapid evaporation salt collection device for ammonium perchlorate mother liquor of the present invention.

[0025] Figure 5 For the present invention Figure 5 Enlarged structural diagram at point B.

[0026] Figure 6 This is a schematic diagram of the rotating tube, sliding sleeve, and stirring blade structure of the present invention.

[0027] Figure 7 For the present invention Figure 6 Enlarged structural diagram at point C.

[0028] Figure 8 This is a schematic diagram of the inner barrel, sliding plate, and hot air chamber structure of the present invention.

[0029] Figure 9 This is a schematic diagram of the inner tub and coil structure of the present invention.

[0030] In the diagram: 1. Control panel; 2. Inner tank; 3. Outer tank; 4. Heating chamber; 5. Coil; 6. Rotary pipe; 7. Rotary joint; 8. Connecting pipe; 9. Sliding sleeve; 10. Stirring blade; 11. Slide groove; 12. Sliding block; 13. First gear; 14. Second gear; 15. Sliding plate; 16. Electric push rod; 17. First air pipe; 18. First one-way valve; 19. Temperature sensor; 20. Hot air chamber; 21. Processing tank; 22. Baffle; 23. Through hole; 24. 25. Recovery chamber; 26. Condensation chamber; 27. Condensation plate; 28. Second gas pipe; 29. ​​Second one-way valve; 30. Cover hopper; 31. Motor; 32. First vertical cylinder; 33. Third gas pipe; 34. First solenoid valve; 35. Second vertical cylinder; 36. Fourth gas pipe; 37. Second solenoid valve; 38. Water outlet; 39. Air inlet pipe; 40. Third solenoid valve; 41. Air outlet pipe; 42. Fourth solenoid valve; 43. Injection pipe; 44. Drain pipe; 45. Pressure sensor. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] This invention provides, for example Figures 1-9 The rapid evaporation and salt collection device for ammonium perchlorate mother liquor shown includes an operating platform 1, with support columns fixedly connected to the four corners of the lower surface of the operating platform 1. An inner tank 2 is fixedly connected to the upper surface of the operating platform 1, and an outer tank 3 is fixedly connected to the outside of the inner tank 2. A heating chamber 4 is formed between the inner tank 2 and the outer tank 3. The arrangement of the inner tank 2 and the outer tank 3, forming the heating chamber 4, improves the heat preservation effect during the heating and evaporation process and reduces energy consumption. A feeding pipe 42 is fixedly connected to the outer tank 3, communicating with the inner tank 2, through which ammonium perchlorate mother liquor is injected into the inner tank 2. In actual use, a solenoid valve (not shown in the figure) is installed on the feeding pipe 42 to control its opening and closing states. A coil 5 is installed inside the heating chamber 4, fixedly connected to the outer wall of the inner tank 2. The coil 5 has a spiral structure, increasing the heat conduction area and thus improving the heating efficiency of the inner tank 2. The top of the coil 5 is connected to the heating chamber 4, and a drain pipe 43 is fixedly connected to the bottom of the side wall of the outer barrel 3. The drain pipe 43 is connected to the heating chamber 4, and the high-temperature steam inside the coil 5 exits from its top (see reference). Figure 9 After being discharged through the opening, the steam and water droplets will directly enter the heating chamber 4, allowing the heat to be reused. After settling, the steam and water droplets will be discharged through the drain pipe 43. In practical use, the steam and water droplets discharged through the drain pipe 43 can be recycled. Water recycling is a common technology and will not be elaborated here.

[0033] A rotating pipe 6 is inserted through the bottom of the inner barrel 2, and is rotatably connected to the inner barrel 2. A circular hole is provided inside the operating platform 1 for the rotating pipe 6 to pass through. The top of the rotating pipe 6 connects to the factory's high-temperature steam pipeline and can be equipped with a rotating connector, allowing high-temperature steam to be supplied even during the rotation of the rotating pipe 6. A lid 29 is snapped onto the top of the inner barrel 2. In actual use, a sealing ring is provided between the lid 29 and the inner barrel 2 to ensure a tight seal during the heating and evaporation process. A circular hole is provided inside the lid 29 for the rotating pipe 6 to pass through, ensuring that the rotation of the rotating pipe 6 does not affect the use of the lid 29. A rotary joint 7 is connected to the bottom of the rotating pipe 6, and a connecting pipe 8 is connected to the bottom of the rotary joint 7, ensuring that the rotating pipe 6 and the connecting pipe 8 remain in a continuous state. The end of the connecting pipe 8 furthest from the rotary joint 7 is connected to the coil 5.

[0034] During operation, ammonium perchlorate mother liquor is injected into the inner tank 2 through the injection pipe 42. High-temperature steam from the factory's high-temperature steam pipeline enters the rotary pipe 6, and then enters the coil 5 inside the heating chamber 4 through the rotary joint 7 and connecting pipe 8. The coil 5 heats up and conducts heat to the wall of the inner tank 2, raising the temperature of the inner tank 2 and thus heating the ammonium perchlorate mother liquor inside. The water in the ammonium perchlorate mother liquor turns into steam upon heating and floats to the upper part of the inner tank 2. The high-temperature steam inside the coil 5 exits through its top opening and directly enters the heating chamber 4, allowing the heat to be reused. After settling, the steam is discharged through the drain pipe 43.

[0035] To improve the uniformity of heating of the ammonium perchlorate mother liquor, an agitator assembly is installed inside the inner tank 2 to cooperate with the rotating tube 6. The agitator assembly includes a sliding sleeve 9 and a stirring blade 10. The sliding sleeve 9 is slidably connected to the outside of the rotating tube 6, and the stirring blade 10 is fixedly connected to the outer wall of the sliding sleeve 9. Both the sliding sleeve 9 and the stirring blade 10 are made of materials with high thermal conductivity. When the high-temperature steam passes through the rotating tube 6, it will conduct heat to the sliding sleeve 9 and the stirring blade 10, and the heat on the sliding sleeve 9 and the stirring blade 10 will be conducted to the ammonium perchlorate mother liquor, improving the heating and evaporation effect.

[0036] A groove 11 is provided on the outer wall of the rotating tube 6, and a slider 12 is fixedly connected to the inner wall of the sliding sleeve 9. The slider 12 is slidably connected inside the groove 11. The groove 11 and the slider 12 are provided so that the rotating tube 6 can rotate to drive the sliding sleeve 9 and the stirring blade 10 to rotate, while the sliding sleeve 9 can slide up and down outside the rotating tube 6.

[0037] To agitate the ammonium perchlorate mother liquor, a drive assembly for rotating the rotating tube 6 is installed at the bottom of the operating platform 1. The drive assembly includes a motor 30, a first gear 13, and a second gear 14. The motor 30 is fixedly connected to the lower surface of the operating platform 1. The first gear 13 is fixedly connected to the drive shaft of the motor 30, and the rotation of the motor 30 drives the first gear 13 to rotate. The second gear 14 is fixedly connected to the rotating tube 6 and meshes with the first gear 13. Because the second gear 14 meshes with the first gear 13, the rotation of the first gear 13 drives the second gear 14 to rotate, which in turn drives the rotating tube 6 to rotate.

[0038] During operation, the motor 30 rotates, driving the first gear 13 to rotate. Since the second gear 14 meshes with the first gear 13, the rotation of the first gear 13 drives the second gear 14 to rotate, which in turn drives the rotating tube 6 to rotate. With the cooperation of the sliding groove 11 on the outer wall of the rotating tube 6 and the slider 12 on the inner wall of the sliding sleeve 9, the rotation of the rotating tube 6 drives the stirring blade 10 to rotate via the sliding sleeve 9. The stirring blade 10 agitates the ammonium perchlorate mother liquor, and during its rotation, its own heat is simultaneously transferred to the ammonium perchlorate mother liquor, thus ensuring that the temperature of the ammonium perchlorate mother liquor in all parts of the inner tank 2 is basically uniform. This avoids uneven heating of the mother liquor, shortens the evaporation time, and improves the evaporation efficiency.

[0039] A sliding plate 15 is slidably connected inside the inner tub 2. The sliding plate 15 is located below the sliding sleeve 9. When the sliding plate 15 moves upward, it will drive the sliding sleeve 9 to move upward. When the sliding sleeve 9 moves downward, it will move downward synchronously with the sliding plate 15 due to its own gravity. A hot air chamber 20 is formed between the sliding plate 15 and the bottom of the inner tub 2. The bottom of the inner tub 2 is connected to a first air pipe 17. A circular hole is opened inside the operating table 1 for the first air pipe 17 to pass through. A first one-way valve 18 is fixedly installed on the first air pipe 17. The first one-way valve 18 allows outside air to enter the hot air chamber 20 through the first air pipe 17 when the sliding plate 15 moves upward, but prevents the gas in the hot air chamber 20 from being discharged through the first air pipe 17 when the sliding plate 15 moves downward. When outside gas enters the hot air chamber 20 through the first air pipe 17, the heat of the inner tub 2 will be conducted to the gas entering the hot air chamber 20. An electric push rod 16 is fixedly connected to the lower surface of the operating table 1. To improve stability during use, two electric push rods 16 are provided, symmetrically distributed. Circular holes are provided inside the operating table 1 and at the bottom of the inner barrel 2 for the extension and retraction ends of the electric push rods 16 to pass through. The slide plate 15 is fixedly connected to the extension and retraction ends of the electric push rods 16, and the extension and retraction of the extension and retraction ends of the electric push rods 16 drives the slide plate 15 to move up and down.

[0040] After the evaporation operation is completed, crystals adhere to the upper surface of the slide plate 15 and the inner wall of the inner barrel 2. Open the lid 29 and start the electric push rod 16. The telescopic end of the electric push rod 16 extends, driving the slide plate 15 to move upward inside the inner barrel 2. As the slide plate 15 moves upward, it will push and scrape the crystals adhering to the inner wall of the inner barrel 2, causing the crystals to slide onto the slide plate 15.

[0041] When the telescopic end of the electric push rod 16 is fully extended, the slide plate 15 is close to the opening of the inner barrel 2, which makes it convenient for the operator to collect the crystals without having to clean the inner wall of the inner barrel 2 again, thus improving the processing efficiency.

[0042] Furthermore, during heating and evaporation, as the sliding plate 15 moves back and forth inside the inner barrel 2, it drives the stirring blade 10 to move up and down through the sliding sleeve 9, expanding the stirring range and further improving the uniformity of heating.

[0043] A processing tank 21 is fixedly connected to the upper surface of the operating platform 1. A water outlet 37 is provided at the bottom of the side wall of the processing tank 21 for discharging condensed water. A partition 22 is fixedly connected inside the processing tank 21. The partition 22 has a through hole 23, dividing the inner cavity of the processing tank 21 into a recovery chamber 24 and a condensation chamber 25. The recovery chamber 24 is located above the condensation chamber 25. The through hole 23 allows some unliquefied steam inside the condensation chamber 25 to enter the recovery chamber 24 through the through hole 23. Simultaneously, due to the temperature difference between the recovery chamber 24 and the condensation chamber 25, the partition 22 is made of heat-insulating material to reduce the mutual influence between the two chambers. A condensing plate 26 is fixedly installed inside the condensation chamber 25. When the condensing plate 26 is powered on, its surface temperature is low, allowing the higher-temperature steam to liquefy quickly.

[0044] To facilitate rapid treatment of the water vapor generated from the heating and evaporation of ammonium perchlorate mother liquor, a first connecting assembly is provided between the treatment tank 21 and the cover hopper 29. This first connecting assembly includes a first vertical cylinder 31, a third gas pipe 32, a second vertical cylinder 34, and a fourth gas pipe 35. Both the third gas pipe 32 and the fourth gas pipe 35 are flexible telescopic hoses. The first vertical cylinder 31 is inserted inside the cover hopper 29 and is fixedly connected to it. One end of the third gas pipe 32 is connected to the first vertical cylinder 31, and the other end is connected to the recovery chamber 24. The second vertical cylinder 34 is inserted inside the cover hopper 29 and is fixedly connected to it. One end of the fourth gas pipe 35 is connected to the second vertical cylinder 34, and the other end is connected to the condensation chamber 25.

[0045] A first solenoid valve 33 is fixedly installed on the third air pipe 32, and a second solenoid valve 36 is fixedly installed on the fourth air pipe 35. A temperature sensor 19 is fixedly connected to the upper surface of the slide plate 15. Specifically, a controller can be set to connect between the first solenoid valve 33, the second solenoid valve 36, and the temperature sensor 19. The controller and its control principle are common existing technologies and will not be described in detail here.

[0046] To improve the efficiency of heat energy utilization, a second communication assembly is provided between the processing tank 21 and the inner tank 2. This second communication assembly includes a second air pipe 27 and a second one-way valve 28. One end of the second air pipe 27 is connected to the hot air chamber 20, and the other end is connected to the recovery chamber 24. The second one-way valve 28 is fixedly installed on the second air pipe 27. The second one-way valve 28 controls the gas flow, ensuring that gas can only enter the recovery chamber 24 from the hot air chamber 20 and cannot flow in the reverse direction.

[0047] In the initial stage of the heating and evaporation operation, and when adding ammonium perchlorate mother liquor to the inner tank 2, the temperature of the mother liquor is low, and only a small amount of steam appears, resulting in incomplete evaporation. At this time, the temperature sensor 19 on the upper surface of the sliding plate 15 detects that the mother liquor temperature is lower than the set threshold and transmits this information to the controller. The controller then controls the first solenoid valve 33 and the second solenoid valve 36 to be closed. The electric push rod 16 is activated, and its telescopic end extends, causing the sliding plate 15 to slide upward inside the inner tank 2. As the sliding plate 15 moves upward inside the inner tank 2, it compresses the mother liquor and steam, causing the steam and mother liquor in the upper part of the inner tank 2 to merge together. Once the temperature is reached, evaporation is carried out again. This ensures that the ammonium perchlorate mother liquor reaches the set temperature before the evaporation and crystallization operation begins, thereby improving the purity of the evaporation.

[0048] When the slide plate 15 moves upward, the external gas enters the hot air chamber 20 through the first air pipe 17. When the slide plate 15 moves downward, the gas in the hot air chamber 20 enters the recovery chamber 24 through the second air pipe 27. Since the first solenoid valve 33 and the second solenoid valve 36 are both closed at this time, the gas passes through the through hole 23 and is discharged from the outlet 37, ensuring that the slide plate 15 can move up and down normally.

[0049] After continuous heating for a period of time, the water in the ammonium perchlorate mother liquor is heated and forms water vapor, which floats to the upper half of the inner tank 2. After the temperature sensor 19 detects that the temperature of the mother liquor has reached the set threshold, it transmits this information to the controller. The controller controls the second solenoid valve 36 to open and the first solenoid valve 33 to be closed. At the same time, the telescopic end of the electric push rod 16 extends, driving the slide plate 15 to move upward inside the inner tank 2. The slide plate 15 presses the steam and excess gas in the upper half of the inner tank 2 into the condensation chamber 25 of the processing tank 21 through the second vertical cylinder 34 and the fourth gas pipe 35. The condensing plate 26 causes the steam to condense into water droplets quickly and be discharged from the outlet 37, while the excess gas passes through the through hole 23 and is discharged from the outlet 37.

[0050] At the same time, external gas enters the hot air chamber 20 through the first air pipe 17, and the heat from the inner barrel 2 is conducted to the gas entering the hot air chamber 20, causing its temperature to rise.

[0051] When the telescopic end of the electric push rod 16 is retracted, the slide plate 15 slides downward inside the inner barrel 2, and the heated gas in the hot air chamber 20 is forced into the recovery chamber 24 through the second air pipe 27.

[0052] Simultaneously, the controller closes the second solenoid valve 36 and opens the first solenoid valve 33. Some of the unliquefied vapor enters the recovery chamber 24 through the through-hole 23 inside the partition 22, and together with the high-temperature gas in the recovery chamber 24, is drawn into the inner barrel 2 through the third gas pipe 32 and the first vertical cylinder 31. This allows the unliquefied vapor to be drawn back into the inner barrel 2 for reheating and evaporation, while the high-temperature gas entering the inner barrel 2 raises its temperature, fully utilizing the heat energy and improving evaporation efficiency.

[0053] As the sliding plate 15 moves up and down repeatedly inside the inner tank 2, it heats the ammonium perchlorate mother liquor to generate high-temperature steam, which is then forced into the condensation chamber 25 of the treatment tank 21 for rapid condensation. At the same time, it can also draw uncondensed steam into the inner tank 2 for reheating and evaporation, further improving the evaporation efficiency.

[0054] An air inlet pipe 38 is installed inside the lid 29 and is fixedly connected to the lid 29. A third solenoid valve 39 is fixedly installed on the air inlet pipe 38. An air outlet pipe 40 is also installed inside the lid 29 and is fixedly connected to the lid 29. A fourth solenoid valve 41 is fixedly installed on the air outlet pipe 40. A pressure sensor 44 is fixedly connected to the lower surface of the lid 29.

[0055] Specifically, a controller can be configured to connect between the third solenoid valve 39, the fourth solenoid valve 41, and the pressure sensor 44. The controller and its control principle are common existing technologies and will not be described in detail here.

[0056] When the pressure sensor 44 detects that the air pressure inside the inner barrel 2 exceeds the set threshold, it transmits this information to the controller. The controller then controls the fourth solenoid valve 41 to open and release pressure from the inner barrel 2 to avoid the risk of explosion. When the pressure sensor 44 detects that the air pressure inside the inner barrel 2 is lower than the set threshold, it transmits this information to the controller. The controller then controls the third solenoid valve 39 to open and replenish air to the inner barrel 2 to ensure the continuity of heating and evaporation.

[0057] Working principle: The lid 29 is placed on top of the inner drum 2, and the top of the rotary pipe 6 is connected to the factory's high-temperature steam pipeline. Then, the ammonium perchlorate mother liquor is injected into the inner drum 2 through the injection pipe 42. High-temperature steam enters the rotary pipe 6, and then enters the coil 5 inside the heating chamber 4 through the rotary joint 7 and connecting pipe 8. The coil 5 heats up and conducts heat to the wall of the inner drum 2, raising the temperature of the inner drum 2 and heating the ammonium perchlorate mother liquor inside. The water in the ammonium perchlorate mother liquor turns into water vapor after being heated and floats to the upper part of the inner drum 2. The high-temperature steam inside the coil 5 exits through its top opening and directly enters the heating chamber 4, allowing the heat to be reused. After settling, it is discharged through the drain pipe 43.

[0058] As the high-temperature steam passes through the rotating tube 6, it transfers heat to the sliding sleeve 9 and the stirring blade 10. The motor 30 is started, and its rotation drives the first gear 13 to rotate. Since the second gear 14 meshes with the first gear 13, the rotation of the first gear 13 drives the second gear 14 to rotate, which in turn drives the rotating tube 6 to rotate. With the cooperation of the sliding groove 11 on the outer wall of the rotating tube 6 and the slider 12 on the inner wall of the sliding sleeve 9, the rotation of the rotating tube 6 drives the stirring blade 10 to rotate via the sliding sleeve 9. The stirring blade 10 agitates the ammonium perchlorate mother liquor, and during its rotation, its own heat is simultaneously transferred to the ammonium perchlorate mother liquor. This ensures that the temperature of the ammonium perchlorate mother liquor in all parts of the inner tank 2 is basically uniform, thus avoiding uneven heating of the mother liquor, shortening the evaporation time, and improving the evaporation efficiency.

[0059] Simultaneously, the electric push rod 16 is activated, extending its telescopic end and driving the sliding plate 15 to slide upwards inside the inner tank 2. During the initial stage of the heating and evaporation operation, and when adding ammonium perchlorate mother liquor to the inner tank 2, the temperature sensor 19 on the upper surface of the sliding plate 15 detects that the mother liquor temperature is below a set threshold and transmits this information to the controller. The controller then controls both the first solenoid valve 33 and the second solenoid valve 36 to be closed. As the sliding plate 15 moves upwards inside the inner tank 2, the steam in the upper half of the inner tank 2 merges with the mother liquor, ensuring that the ammonium perchlorate mother liquor reaches the set temperature before initiating the evaporation and crystallization operation, thus improving the purity of the evaporation.

[0060] After continuous heating for a period of time, the water in the ammonium perchlorate mother liquor turns into steam upon heating and floats to the upper half of the inner barrel 2. Temperature sensor 19 detects that the mother liquor temperature has reached the set threshold and transmits this information to the controller. The controller then controls the second solenoid valve 36 to open, while the first solenoid valve 33 remains closed. Simultaneously, the telescopic end of the electric push rod 16 extends, causing the sliding plate 15 to move upwards inside the inner barrel 2. The sliding plate 15 forces the steam from the upper half of the inner barrel 2 through the second vertical cylinder 34 and the fourth air pipe 35 into the condensation chamber 25 of the processing barrel 21. The condensing plate 26 causes the steam to quickly condense into water droplets, which are then discharged from the outlet 37. At the same time, external gas enters the hot air chamber 20 through the first air pipe 17, and the heat from the inner barrel 2 is conducted to the gas entering the hot air chamber 20, causing its temperature to rise.

[0061] Next, the telescopic end of the electric push rod 16 retracts, and as the sliding plate 15 moves downward inside the inner barrel 2, it forces the heated gas in the hot air chamber 20 into the recovery chamber 24 through the second air pipe 27. Simultaneously, the controller closes the second solenoid valve 36 and opens the first solenoid valve 33. Some of the unliquefied steam enters the recovery chamber 24 through the through-hole 23 inside the partition 22, and together with the high-temperature gas in the recovery chamber 24, enters the inner barrel 2 through the third air pipe 32 and the first vertical cylinder 31. This allows the unliquefied steam to be drawn back into the inner barrel 2 for reheating and evaporation, while the high-temperature gas entering the inner barrel 2 raises its temperature, fully utilizing the heat energy and improving evaporation efficiency.

[0062] As the sliding plate 15 moves up and down repeatedly inside the inner tank 2, it heats the ammonium perchlorate mother liquor to generate high-temperature steam, which is then forced into the condensation chamber 25 of the treatment tank 21 for rapid condensation. At the same time, it can also draw the uncondensed steam back into the inner tank 2 for reheating and evaporation, further improving the evaporation efficiency.

[0063] Meanwhile, as the sliding plate 15 moves up and down repeatedly inside the inner barrel 2, it drives the stirring blade 10 to move up and down through the sliding sleeve 9, expanding the stirring range and further improving the uniformity of heating.

[0064] After the evaporation process is complete, crystals adhere to the upper surface of the sliding plate 15 and the inner wall of the inner barrel 2. The lid 29 is opened, and the electric push rod 16 is activated. The telescopic end of the electric push rod 16 extends, causing the sliding plate 15 to move upwards inside the inner barrel 2. As the sliding plate 15 moves upwards, it scrapes the crystals adhering to the inner wall of the inner barrel 2, causing the crystals to slide onto the sliding plate 15. When the telescopic end of the electric push rod 16 is fully extended, the sliding plate 15 is close to the opening of the inner barrel 2, making it convenient for the operator to collect the crystals without needing to clean the inner wall of the inner barrel 2 again, thus improving processing efficiency.

Claims

1. A rapid evaporation salt collection device for ammonium perchlorate mother liquor, comprising an operating table (1), characterized in that: An inner barrel (2) is fixedly connected to the upper surface of the operating table (1), and an outer barrel (3) is fixedly connected to the outside of the inner barrel (2). A heating chamber (4) is formed between the inner barrel (2) and the outer barrel (3). A material injection pipe (42) is fixedly connected to the outer barrel (3), and the material injection pipe (42) communicates with the inner barrel (2). A coil (5) is provided inside the heating chamber (4). The coil (5) is fixedly connected to the outer wall of the inner barrel (2), and the top end of the coil (5) communicates with the heating chamber (4). A drain pipe (43) is fixedly connected to the bottom of the side wall. The drain pipe (43) is connected to the heating chamber (4). A rotating pipe (6) is provided through the bottom of the inner barrel (2). The rotating pipe (6) is rotatably connected to the inner barrel (2). A round hole is provided inside the operating table (1) for the rotating pipe (6) to pass through. A rotary joint (7) is connected to the bottom of the rotating pipe (6). A connecting pipe (8) is connected to the bottom of the rotary joint (7). The end of the connecting pipe (8) away from the rotary joint (7) is connected to the coil (5). The inner barrel ( 2) The inside of the operating table (1) is equipped with a stirring component that cooperates with the rotating tube (6). The bottom of the operating table (1) is equipped with a driving component that drives the rotating tube (6) to rotate. The inner barrel (2) is slidably connected to a sliding plate (15). A hot air chamber (20) is formed between the sliding plate (15) and the bottom of the inner barrel (2). An electric push rod (16) is fixedly connected to the lower surface of the operating table (1). There are two electric push rods (16), which are symmetrically distributed. The inside of the operating table (1) and the inner barrel (2) are equipped with a stirring component that cooperates with the rotating tube (6). The bottom of the operating table (1) is equipped with a driving component that drives the rotating tube (6) to rotate. The inner barrel (2) is equipped with a stirring component that cooperates with the rotating tube (6). The bottom of the operating table (1) is equipped with a driving component that drives the rotating tube (6) to rotate. The inner barrel (2) is equipped with a stirring component that cooperates with the rotating tube (6) to rotate. The bottom of the operating table (1) is equipped with a driving component that drives the rotating tube (6) to rotate. The inner barrel (2) is equipped with a stirring component that cooperates with the rotating tube (6) to rotate. The bottom of the operating table (1) is equipped with a driving component that drives the rotating tube (6) to rotate. The bottom of the ... operating table (1) is equipped with a driving component that drives the rotating tube (6) to rotate. The bottom of the operating table (1) is equipped with a driving component that drives the rotating tube (6) to rotate. The bottom of the operating table (1) is equipped with a driving component that drives the rotating tube (6) to rotate. The bottom of the operating table (1) is equipped with a driving component that drives the rotating tube (6) to rotate. The The bottom of each of the inner barrels (2) is provided with a circular hole through which the extension end of the electric push rod (16) passes. The slide plate (15) is fixedly connected to the extension end of the electric push rod (16). The bottom of the inner barrel (2) is connected to the first air pipe (17). The inside of the operating table (1) is provided with a circular hole through which the first air pipe (17) passes. The first air pipe (17) is fixedly installed with a first one-way valve (18). The top of the inner barrel (2) is connected with a lid (29). The inside of the lid (29) is provided with a circular hole through which the rotating pipe (6) passes.

2. The rapid evaporation salt collection device for ammonium perchlorate mother liquor according to claim 1, characterized in that: The stirring assembly includes a sliding sleeve (9) and a stirring blade (10). The sliding sleeve (9) is slidably connected to the outside of the rotating tube (6), and the stirring blade (10) is fixedly connected to the outer wall of the sliding sleeve (9). The sliding plate (15) is located below the sliding sleeve (9).

3. The rapid evaporation salt collection device for ammonium perchlorate mother liquor according to claim 2, characterized in that: The outer wall of the rotating tube (6) is provided with a sliding groove (11), and a slider (12) is fixedly connected to the inner wall of the sliding sleeve (9). The slider (12) is slidably connected inside the sliding groove (11).

4. The rapid evaporation salt collection device for ammonium perchlorate mother liquor according to claim 1, characterized in that: The drive assembly includes a motor (30), a first gear (13) and a second gear (14). The motor (30) is fixedly connected to the lower surface of the operating table (1). The first gear (13) is fixedly connected to the drive shaft of the motor (30). The second gear (14) is fixedly connected to the rotating tube (6). The second gear (14) meshes with the first gear (13).

5. The rapid evaporation salt collection device for ammonium perchlorate mother liquor according to claim 1, characterized in that: The upper surface of the operating table (1) is fixedly connected to a processing tank (21). A water outlet (37) is provided at the bottom of the side wall of the processing tank (21). A partition (22) is fixedly connected inside the processing tank (21). A through hole (23) is provided inside the partition (22). The partition (22) divides the inner cavity of the processing tank (21) into a recovery chamber (24) and a condensation chamber (25). The recovery chamber (24) is located above the condensation chamber (25). A condenser plate (26) is fixedly installed inside the condensation chamber (25). A first connecting component is provided between the processing tank (21) and the lid hopper (29). A second connecting component is provided between the processing tank (21) and the inner tank (2).

6. The rapid evaporation salt collection device for ammonium perchlorate mother liquor according to claim 5, characterized in that: The first connecting component includes a first vertical cylinder (31), a third air pipe (32), a second vertical cylinder (34), and a fourth air pipe (35). The first vertical cylinder (31) is inserted inside the lid hopper (29) and is fixedly connected to the lid hopper (29). One end of the third air pipe (32) is connected to the first vertical cylinder (31), and the other end of the third air pipe (32) is connected to the recovery chamber (24). The second vertical cylinder (34) is inserted inside the lid hopper (29) and is fixedly connected to the lid hopper (29). One end of the fourth air pipe (35) is connected to the second vertical cylinder (34), and the other end of the fourth air pipe (35) is connected to the condensation chamber (25).

7. The rapid evaporation salt collection device for ammonium perchlorate mother liquor according to claim 6, characterized in that: A first solenoid valve (33) is fixedly installed on the third air pipe (32), a second solenoid valve (36) is fixedly installed on the fourth air pipe (35), and a temperature sensor (19) is fixedly connected to the upper surface of the slide plate (15).

8. The rapid evaporation salt collection device for ammonium perchlorate mother liquor according to claim 7, characterized in that: The second communication component includes a second air pipe (27) and a second one-way valve (28). One end of the second air pipe (27) is connected to the hot air chamber (20), and the other end of the second air pipe (27) is connected to the recovery chamber (24). The second one-way valve (28) is fixedly installed on the second air pipe (27).

9. The rapid evaporation salt collection device for ammonium perchlorate mother liquor according to claim 1, characterized in that: An air inlet pipe (38) is provided inside the lid (29). The air inlet pipe (38) is fixedly connected to the lid (29). A third solenoid valve (39) is fixedly installed on the air inlet pipe (38). An air outlet pipe (40) is also provided inside the lid (29). The air outlet pipe (40) is fixedly connected to the lid (29). A fourth solenoid valve (41) is fixedly installed on the air outlet pipe (40). A pressure sensor (44) is fixedly connected to the lower surface of the lid (29).

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