Ammonium perchlorate drying tail gas microparticle recovery system

Abstract

The present invention discloses an ammonium perchlorate drying tail gas microparticle recovery system, which relates to the field of drying tail gas microparticle recovery systems, and includes a base, with a drying cylinder arranged above the base. In the present invention, gas entering the interior of the rotating cylinder is discharged from a first air outlet and a second air outlet to the interior of the drying cylinder, and the gas is filled into the inner layer and outer layer of the ammonium perchlorate material, so that the gas is evenly dried by the ammonium perchlorate. The second air pump has the effect of replenishing air in the gas chamber, avoiding the excessive temperature of the gas in the gas chamber after recycling, so that the air in the gas chamber maintains a certain low temperature. In the present invention, the ammonium perchlorate is dried at a low temperature by suction and controlling the wind temperature, and the ammonium perchlorate raw material is not likely to explode, and the ammonium perchlorate microparticles are not likely to generate oxygen, chlorine and nitrogen when heated, thereby avoiding corrosion to the inner wall structure of the dryer and the occurrence of danger.

Description

Technical Field

[0001] The invention relates to the field of dry tail gas microparticle recovery systems, in particular to an ammonium perchlorate dry tail gas microparticle recovery system. Background Art

[0002] In military production, ammonium perchlorate is an energetic raw material. Its drying process is very important. Whether the moisture content of the raw material meets the process requirements affects the quality of military products. Ammonium perchlorate is a strong oxidant and can explode when mixed with reducing agents, organic matter, flammable materials such as sulfur, phosphorus, or metal powders.

[0003] Therefore, when preparing ammonium perchlorate, it is necessary to use low temperature to clean the ammonium perchlorate after cleaning and purification to avoid explosion of the ammonium perchlorate raw materials. The ammonium perchlorate drying tail gas discharged during cleaning and purification also contains a portion of ammonium perchlorate that dissolves in water vapor and is discharged. The ammonium perchlorate particles discharged with the water vapor are easily heated to produce oxygen, chlorine and nitrogen, which are corrosive to the inner wall structure of the dryer and are prone to fire hazards when exposed to fire.

[0004] Therefore, it is necessary to propose an ammonium perchlorate drying tail gas microparticle recovery system to solve the above problems. Summary of the Invention

[0005] The present invention aims to provide a system for recovering microparticles from ammonium perchlorate drying tail gas, so as to solve the problem that, during the preparation of ammonium perchlorate, the ammonium perchlorate needs to be cleaned at low temperature after cleaning and purification to avoid explosion of the ammonium perchlorate raw material. The ammonium perchlorate drying tail gas discharged during the cleaning and purification also contains a portion of ammonium perchlorate that dissolves in water vapor and is discharged. The ammonia perchlorate microparticles discharged with the water vapor are easily heated to generate oxygen, chlorine, and nitrogen, which are corrosive to the inner wall structure of the dryer and are prone to fire hazards when exposed to fire.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an ammonium perchlorate drying tail gas microparticle recovery system, comprising a base, a drying cylinder is arranged above the base, the drying cylinder is a cylindrical structure, one end of the drying cylinder is provided with a second end cover, the other end is provided with a first end cover, the first end cover is provided with a support sleeve, the second end cover is rotatably provided with a power shaft, one end of the power shaft extends into the interior of the drying cylinder, a rotating cylinder is provided inside the drying cylinder, the end of the power shaft extending into the interior of the drying cylinder is fixedly installed at the end of the rotating cylinder, the gas pipeline is rotatably provided at the far end of the rotating cylinder A stirring rod is fixedly provided at one end of the rotating cylinder away from the power shaft, and a first air outlet is also provided at the outer ring of the rotating cylinder, and a plurality of the first air outlet and the stirring rod are provided, and the first air outlet passes through the inner and outer surfaces of the rotating cylinder at the same time, and a triangular stirring frame is fixedly provided at the end of the stirring rod, and a second air outlet is provided at the end of the stirring rod close to the triangular stirring frame, and a one-way valve is provided in the second air outlet and the first air outlet, and a feed pipe, a second air intake pipe and a first air intake pipe are fixedly provided on the upper end of the drying cylinder from the end close to the second end cover to the end close to the first end cover in sequence;

[0007] A recovery shell is provided above the drying cylinder, and connecting pipes are integrally provided at both ends of the recovery shell. The connecting pipe at one end of the recovery shell is connected to the second air intake pipe, and the connecting pipe at the other end of the recovery shell is connected to the first air intake pipe. A gas chamber is provided in the middle of the recovery shell, and filter assemblies are provided on both sides of the gas chamber. A first air pump and a second air pump are fixedly installed on the upper surface of the recovery shell, and the first air pump and the second air pump are both connected to the interior of the gas chamber. A hose connected to the end of the gas pipe is provided on the first air pump.

[0008] The top of described sliding panel also is provided with an interlocking structure, and the interlocking structure of described sliding panel is arranged on the interlocking structure of described sliding panel and the interlocking structure of described sliding panel.

[0009] Preferably, a V-shaped slope is provided at the bottom of the gas chamber, and a threaded hole penetrating inside and outside the gas chamber is provided at the bottom of the V-shaped slope, and a water collecting tank is connected to the threaded hole through threaded fitting.

[0010] Preferably, a primary filter assembly is provided in the communicating pipe, the primary filter assembly includes a filter plate, a filter hole, a second spring and a rectangular plate, a plurality of filter plates are provided along the height direction of the communicating pipe, the filter holes penetrate the upper and lower surfaces of the filter plate at the same time, a plurality of filter holes are provided on the filter plate, the rectangular plates are provided in pairs, a pair of rectangular plates are fixedly connected to the inner wall of the communicating pipe above and below the filter plates, the second spring is fixedly connected to the side of the rectangular plate and the filter plate close to each other, the filter holes are conical hole structures, the lower end opening of the filter holes is smaller than the upper end opening of the filter holes, and the lower end opening of the filter holes at the lower position is larger than the lower end opening of the filter holes at the upper position.

[0011] Preferably, a flow rate control component is provided in both the second intake duct and the first intake duct, and the flow rate control component includes a rotating shaft and a baffle. The rotating shaft is rotatably provided in the corresponding second intake duct or the first intake duct, and the baffle is fixedly connected to the outer ring of the rotating shaft. Two baffles are provided on the outer ring of the rotating shaft, and the two baffles are distributed at an angle of one hundred and eighty degrees.

[0012] Preferably, the feed pipe is connected to a feed hopper, and a material pump is provided at the bottom of the feed hopper.

[0013] Preferably, a support sleeve is fixedly installed on the first end cover, a gas pipeline is rotatably arranged in the support sleeve, a discharge port is provided at the lower end of the first end cover, the discharge port is connected to the inside and outside of the drying cylinder, and a sealing door is provided at one end of the discharge port connected to the outside of the drying cylinder.

[0014] Preferably, a motor, a reducer and a bearing seat are fixedly installed at one end of the upper surface of the base, a first pulley is fixedly provided on the driving shaft of the motor, a second pulley is fixedly provided on the driving shaft of the reducer, a transmission belt is commonly sleeved between the first pulley and the second pulley, a driven shaft is provided on the reducer, a connecting shaft is rotatably provided on the bearing seat, a flange connecting plate is fixedly provided at one end of the bearing seat and the driven shaft close to each other, the two flange connecting plates are fixed by bolts, a second gear is fixedly provided at the middle of the outer ring of the connecting shaft, a first gear is fixedly provided on the power shaft, and a transmission toothed belt is commonly sleeved between the first gear and the second gear.

[0015] Preferably, support plates are fixedly provided at both ends of the upper surface of the base, and the support plates are supported on the outer circle of the lower end of the drying cylinder.

[0016] Preferably, a sealing ring is provided at one end of the gas pipeline that is movably inserted into the rotating cylinder, and the sealing ring is fixedly provided at the outer ring of the gas pipeline.

[0017] The technical effects and advantages of the present invention are as follows:

[0018] 1. The first air pump is started to transport the gas in the gas chamber to the hose. The gas passes through the hose and the gas pipe in sequence and enters the interior of the rotating drum. The gas entering the rotating drum is discharged from the first air outlet and the second air outlet to the interior of the drying drum. The gas is filled into the inner layer and the outer layer of the ammonium perchlorate material, so that the gas is evenly dried by the ammonium perchlorate. The driving effect of the gas is conducive to the dispersion and mixing of the ammonium perchlorate, so that the drying effect of the ammonium perchlorate is improved. After drying the ammonia perchlorate, the gas is sucked out from the first and second air intake pipes to the gas chamber and supplied to the first air pump for recycling. The second air pump has the effect of replenishing air in the gas chamber, avoiding the excessive temperature of the gas in the gas chamber after recycling, so that the air in the gas chamber maintains a certain low temperature. In the present invention, the ammonia perchlorate is dried at a low temperature by suction and controlling the wind temperature. The phenomenon of explosion of the ammonium perchlorate raw material is not likely to occur, and the phenomenon of oxygen, chlorine and nitrogen easily generated by the ammonia perchlorate microparticles when heated is also not likely to occur, thereby avoiding corrosion and danger to the inner wall structure of the dryer.

[0019] 2. The wind circulates through the sponge layer and enters the gas chamber to absorb moisture, achieving the purpose of gas dehumidification. The wind circulates inside the gas chamber and the drying cylinder. The circulating wind is relatively dry, which can better dry the ammonium perchlorate.

[0020] 3. When the wind passes through the sponge layer, it will pass through the fan blades, thereby blowing the fan blades to rotate. During the rotation of the fan blades, the rotating sleeve is driven to rotate. When the rotating sleeve rotates, the first spring is twisted. During the rotation of the fan blades, the steel balls on the end face of the rotating sleeve are used to press the movable mesh plate, so that the movable mesh plate squeezes the sponge layer, thereby squeezing the water in the sponge layer. The squeezed water flows along the V-shaped inclined surface and through the threaded hole into the water collection tank for storage and collection. When the wind force becomes smaller, the driving force on the fan blades is reduced, the first spring recovers its deformation and drives the rotating sleeve and the steel balls to reset. Due to the elastic recovery of the sponge layer, the movable mesh plate and the sponge layer are also reset. When the wind force becomes stronger again, the sponge layer is continued to squeeze out water, thereby achieving the purpose of keeping the sponge layer dry, making the sponge layer more effective in wind dehumidification.

[0021] 4. When wind passes through the filter holes on the filter plate, the diameter of the filter holes is small, which can block the ammonium perchlorate particles in the wind, so that the ammonium perchlorate particles are blocked on the lower surface of the filter plate. When the wind becomes smaller, the ammonium perchlorate particles fall into the drying cylinder due to gravity, reducing the loss of ammonium perchlorate particles. Moreover, since the lower end opening of the filter hole is smaller than the upper end opening of the filter hole, the lower end aperture of the filter hole on the upper filter plate is also smaller than the lower end aperture of the filter hole on the lower filter plate, forming a multi-stage blocking effect for the lower end opening of the filter hole being smaller than the upper end opening of the filter hole. Even if the ammonium perchlorate particles enter between the two adjacent filter plates through the filter holes on the lower filter plate, they can still fall into the drying cylinder through the corresponding filter holes when the wind becomes smaller.

[0022] 5. After the ammonium perchlorate is dried, the first air pump can be turned off. When the second air pump is used to inflate the gas chamber, the gas is caused to pass through the sponge layer and the filter plate in the opposite direction, thereby blowing away the residual ammonium perchlorate microparticles on the surface of the sponge layer and the filter plate, and blowing these ammonium perchlorate microparticles into the interior of the drying cylinder to mix with the ammonium perchlorate raw material, thereby further reducing the amount of ammonium perchlorate microparticles lost. In addition, the reverse blowing of the sponge layer and the filter plate can keep the filter plate and the sponge layer clean and unblocked.

[0023] 6. Since the wind force passing through the filter plate is sometimes strong and sometimes weak, and the second spring is provided at the upper and lower ends of the filter plate, the filter plate will vibrate when the wind force passes through the filter plate, thereby helping the filter plate to beat the wind force passing through the filter holes, so that the ammonium perchlorate microparticles in the wind are blocked by the filter plate structure wall and knocked down, and are not easily sucked out. In addition, the vibration of the filter plate is conducive to the separation of the ammonium perchlorate microparticles on the filter plate surface, which can maintain a good cleaning effect.

[0024] 7. A corresponding second intake duct or first intake duct extends from one end of the rotating shaft and is connected to an external motor. The motor controls the rotation of the rotating shaft. During the rotation of the rotating shaft, the baffle is driven to rotate, so that the flow area in the second intake duct or the first intake duct changes cyclically from small to large, making the wind force sometimes strong and sometimes weak. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic structural diagram of the ammonium perchlorate drying tail gas microparticle recovery system from one perspective of the present invention.

[0026] Figure 2 This is a cross-sectional view of the ammonium perchlorate drying tail gas microparticle recovery system of the present invention.

[0027] Figure 3 This is a structural schematic diagram from another perspective of the ammonium perchlorate drying tail gas microparticle recovery system of the present invention.

[0028] Figure 4 For the present invention Figure 1 A magnified schematic diagram of the structure in the middle.

[0029] Figure 5 For the present invention Figure 2 A magnified schematic diagram of the structure at point B in the middle.

[0030] Figure 6 For the present invention Figure 3 Enlarged schematic diagram of the structure at point C in the middle.

[0031] Figure 7 This is a cross-sectional view of the ammonium perchlorate drying tail gas microparticle recovery system of the present invention.

[0032] Figure 8 For the present invention Figure 7 Enlarged schematic diagram of the structure at point D in the middle.

[0033] Figure 9 For the present invention Figure 7 Enlarged schematic diagram of the structure at E in the middle.

[0034] In the figure: 1. Base; 2. Drying cylinder; 3. First end cover; 4. Second end cover; 5. First suction pipe; 6. Second suction pipe; 7. Feed pipe; 8. First gear; 9. Second gear; 10. Reducer; 11. Motor; 12. Support plate; 13. Rotating cylinder; 14. Stirring rod; 15. Triangular stirring frame; 16. First air outlet; 17. Bearing seat; 18. Connecting shaft; 19. Flange connection plate; 20. Driven shaft; 21. Second air outlet; 22. Gas pipe; 23. Support sleeve; 24. Sealing door; 25. Discharge port; 26. Hose; 27 , second air pump; 28, first air pump; 29, gas chamber; 30, recovery shell; 31, baffle; 32, rotating shaft; 33, threaded hole; 34, water collecting tank; 35, feed hopper; 36, material pump; 37, power shaft; 38, fixed mesh plate; 39, sponge layer; 40, steel ball; 41, movable mesh plate; 42, rotating sleeve; 43, first spring; 44, positioning ring; 45, support shaft; 46, fan blade; 47, fixed mounting plate; 48, filter plate; 49, filter hole; 50, second spring; 51, rectangular plate; 52, connecting pipe; 53, sealing ring. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0036] The present invention provides Figures 1-9The ammonium perchlorate drying tail gas microparticle recovery system shown includes a base 1, a drying cylinder 2 is arranged above the base 1, and the drying cylinder 2 has a cylindrical structure. Ammonium perchlorate is put into the drying cylinder 2 for drying. A second end cover 4 is provided at one end of the drying cylinder 2, and a first end cover 3 is provided at the other end. Both the first end cover 3 and the second end cover 4 are removable to facilitate cleaning of the interior of the drying cylinder 2.

[0037] A support sleeve 23 is provided on the first end cover 3, and a power shaft 37 is rotatably provided on the second end cover 4. One end of the power shaft 37 extends into the interior of the drying cylinder 2, and a rotating cylinder 13 is provided inside the drying cylinder 2. One end of the power shaft 37 extending into the interior of the drying cylinder 2 is fixedly installed on the end of the rotating cylinder 13, and the gas pipeline 22 is rotatably provided on the end of the rotating cylinder 13 away from the power shaft 37. A stirring rod 14 is fixedly provided on the outer ring of the rotating cylinder 13, and a first air outlet 16 is further provided on the outer ring of the rotating cylinder 13. There are multiple first air outlets 16 and stirring rod 14. The first air outlet 16 passes through the inner and outer surfaces of the rotating cylinder 13 at the same time. A triangular stirring frame 15 is fixedly provided on the end of the stirring rod 14. A second air outlet 21 is provided on the end of the stirring rod 14 close to the triangular stirring frame 15. The second air outlet 21 and the first air outlet A one-way valve is provided in each hole 16, and a feed pipe 7, a second air suction pipe 6 and a first air suction pipe 5 are fixedly provided in sequence on the upper end of the drying cylinder 2 from the end close to the second end cover 4 to the end close to the first end cover 3; a recovery shell 30 is provided above the drying cylinder 2, and connecting pipes 52 are integrally provided at both ends of the recovery shell 30. The connecting pipe 52 at one end of the recovery shell 30 is connected to the second air suction pipe 6, and the connecting pipe 52 at the other end of the recovery shell 30 is connected to the first air suction pipe 5. A gas chamber 29 is provided in the middle of the recovery shell 30, and a first air pump 28 and a second air pump 27 are fixedly installed on the upper surface of the recovery shell 30. The first air pump 28 and the second air pump 27 are both connected to the interior of the gas chamber 29, and the first air pump 28 is provided with a hose 26 connected to the end of the gas pipe 22.

[0038] During operation, the first air pump 28 is started to transport the gas in the gas chamber 29 to the hose 26. The gas passes through the hose 26 and the gas pipe 22 in sequence and enters the interior of the rotating cylinder 13. The gas entering the rotating cylinder 13 is discharged from the first air outlet 16 and the second air outlet 21 to the interior of the drying cylinder 2. The gas fills the inner layer and the outer layer of the ammonium perchlorate material, so that the gas is evenly dried by the ammonium perchlorate. The pushing effect of the gas is conducive to the dispersion and mixing of the ammonium perchlorate, so that the drying effect of the ammonium perchlorate is increased. After the gas dries the ammonium perchlorate, it is discharged from the first suction pipe 5 and the second suction pipe. 6 is sucked out into the gas chamber 29 and supplied to the first air pump 28 for recycling, while the second air pump 27 has the effect of replenishing air in the gas chamber 29, thereby preventing the temperature of the gas in the gas chamber 29 from being too high after recycling, so that the air in the gas chamber 29 maintains a certain low temperature. In the present invention, the ammonia perchlorate is dried at a low temperature by suctioning and controlling the wind temperature, which makes it less likely for the ammonia perchlorate raw material to explode, and it is also less likely for the ammonia perchlorate particles to easily generate oxygen, chlorine and nitrogen when heated, thereby avoiding corrosion to the inner wall structure of the dryer and the occurrence of danger.

[0039] A filter assembly is provided on both sides of the gas chamber 29, and the filter assembly includes a movable mesh plate 41, a fixed mesh plate 38 and a sponge layer 39. The four sides of the fixed mesh plate 38 are respectively fixed on the four inner walls of the recovery shell 30, and the four sides of the movable mesh plate 41 are respectively movably fitted on the four inner walls of the recovery shell 30. The sponge layer 39 is fixedly connected between the movable mesh plate 41 and the fixed mesh plate 38. A support shaft 45 is fixedly welded to the middle of one side of the fixed mesh plate 38 close to the movable mesh plate 41. The support shaft 45 moves through the middle of the movable mesh plate 41. The support shaft 45 moves through the movable mesh plate A fixed mounting plate 47 is fixedly provided at one end of the middle portion 41, and the fixed mounting plate 47 is fixed to the inner wall of the recovery shell 30 by screws. A positioning ring 44 is fixedly welded to the outer ring of the support shaft 45, and a rotating sleeve 42 is rotatably sleeved on the outer ring of the support shaft 45. A first spring 43 is fixedly connected between the sides of the positioning ring 44 and the rotating sleeve 42 that are close to each other. A fan blade 46 is fixedly provided on the outer ring of the rotating sleeve 42. A side of the rotating sleeve 42 away from the positioning ring 44 is movably inlaid with a steel ball 40, and the steel ball 40 is movably fitted to the side of the movable mesh plate 41 away from the fixed mesh plate 38;

[0040] During operation, the wind circulates through the sponge layer 39 and enters the gas chamber 29 to absorb and remove moisture, thereby achieving the purpose of dehumidifying the gas. In addition, the wind circulates inside the gas chamber 29 and the drying cylinder 2. The circulating wind is relatively dry, which can better dry the ammonium perchlorate.

[0041] Furthermore, a V-shaped inclined surface is provided at the bottom of the gas chamber 29, and a threaded hole 33 is provided at the bottom of the V-shaped inclined surface, which passes through the inside and outside of the gas chamber 29. A water collecting tank 34 is connected to the threaded hole 33 by threaded cooperation; when the wind passes through the sponge layer 39, it will pass through the fan blade 46, thereby blowing the fan blade 46 to rotate. During the rotation of the fan blade 46, the rotating sleeve 42 is driven to rotate. When the rotating sleeve 42 rotates, the first spring 43 is twisted. During the rotation of the fan blade 46, the steel ball 40 on the end face of the rotating sleeve 42 is used to press the movable mesh plate 41, so that the movable mesh plate 41 squeezes the sponge. Layer 39, so that the water in the sponge layer 39 is squeezed out, and the squeezed water flows along the V-shaped inclined surface and through the threaded hole 33 into the water collecting tank 34 for storage and collection. When the wind force becomes smaller, the driving force on the fan blade 46 is reduced, and the first spring 43 recovers its deformation and drives the rotating sleeve 42 and the steel ball 40 to reset. Due to the elastic recovery effect of the sponge layer 39, the movable mesh plate 41 and the sponge layer 39 are also reset. When the wind force becomes stronger again, the sponge layer 39 is continued to be squeezed out of the water, thereby achieving the purpose of keeping the sponge layer 39 dry, so that the sponge layer 39 has a better effect on wind dehumidification.

[0042] Furthermore, a primary filter assembly is provided in the communicating pipe 52, and the primary filter assembly includes a filter plate 48, a filter hole 49, a second spring 50 and a rectangular plate 51. The filter plate 48 is provided with multiple filter holes 49 along the height direction of the communicating pipe 52. The filter holes 49 penetrate the upper and lower surfaces of the filter plate 48 at the same time. A plurality of filter holes 49 are provided on the filter plate 48, and the rectangular plates 51 are provided in pairs. A pair of rectangular plates 51 are fixedly connected to the inner walls of the communicating pipe 52 above and below the filter plate 48. The second spring 50 is fixedly connected to the side of the rectangular plate 51 and the filter plate 48 close to each other. The filter hole 49 has a conical hole structure, and the lower end opening of the filter hole 49 is smaller than the upper end opening of the filter hole 49, and the lower end opening of the filter hole 49 at the lower position is larger than the lower end opening of the filter hole 49 at the upper position; when the wind passes through the filter hole 49 on the filter plate 48 When the wind is too strong, the ammonia perchlorate particles fall into the drying drum 2 due to the action of gravity, thereby reducing the loss of ammonia perchlorate particles. Moreover, since the lower opening of the filter hole 49 is smaller than the upper opening of the filter hole 49, the lower end aperture of the filter hole 49 on the upper filter plate 48 is also smaller than the lower end aperture of the filter hole 49 on the lower filter plate 48, thereby forming a multi-stage blocking effect in which the lower end opening of the filter hole 49 is smaller than the upper end opening of the filter hole 49. Even if the ammonia perchlorate particles enter between the two adjacent filter plates 48 through the filter hole 49 on the lower filter plate 48, they can also fall into the interior of the drying drum 2 through the corresponding filter hole 49 when the wind is too strong.

[0043] Furthermore, after the ammonium perchlorate is dried, the first air pump 28 can be turned off, and when the second air pump 27 is used to inflate the gas chamber 29, the gas is caused to flow in the opposite direction through the sponge layer 39 and the filter plate 48, thereby blowing away the residual ammonium perchlorate particles on the surface of the sponge layer 39 and the filter plate 48, and blowing these particles into the interior of the drying cylinder 2 to mix with the ammonium perchlorate raw material, thereby further reducing the amount of ammonium perchlorate particles lost. In addition, the reverse blowing of the sponge layer 39 and the filter plate 48 can keep the filter plate 48 and the sponge layer 39 clean and unblocked.

[0044] Since the wind force passing through the filter plate 48 is sometimes strong and sometimes weak, and the second spring 50 is provided at the upper and lower ends of the filter plate 48, when the wind force passes through the filter plate 48, the filter plate 48 will vibrate, thereby helping the filter plate 48 to beat the wind force passing through the filter hole 49, so that the ammonium perchlorate particles in the wind force are blocked by the structural wall of the filter plate 48 and are knocked down, and are not easily sucked out. In addition, when the filter plate 48 vibrates, it is conducive to the detachment of the ammonium perchlorate particles on the surface of the filter plate 48, which can maintain a good cleaning effect.

[0045] Because it is difficult to control the wind force in the prior art, a flow rate control component is provided in both the second intake duct 6 and the first intake duct 5. The flow rate control component includes a rotating shaft 32 and a baffle 31. The rotating shaft 32 is rotatably provided in the corresponding second intake duct 6 or the first intake duct 5. The baffle 31 is fixedly connected to the outer ring of the rotating shaft 32. Two baffles 31 are provided on the outer ring of the rotating shaft 32. The two baffles 31 are distributed at an angle of one hundred and eighty degrees. The corresponding second intake duct 6 or the first intake duct 5 is extended from one end of the rotating shaft 32 and is connected to an external motor. The motor controls the rotation of the rotating shaft 32. During the rotation of the rotating shaft 32, the baffle 31 is driven to rotate, so that the flow area in the second intake duct 6 or the first intake duct 5 changes cyclically from small to large, so that the wind force is sometimes large and sometimes small.

[0046] A feed hopper 35 is connected to the feed pipe 7 , and the ammonium perchlorate raw material is placed in the feed hopper 35 . A material pump 36 is provided at the bottom of the feed hopper 35 . When the material pump 36 is turned on, the speed at which the ammonium perchlorate raw material enters the feed pipe 7 is controlled.

[0047] In the present invention, ammonia perchlorate is dried while being stirred, and the drying effect is good; a support sleeve 23 is fixedly installed on the first end cover 3, a gas pipeline 22 is rotatably provided in the support sleeve 23, a discharge port 25 is provided at the lower end of the first end cover 3, the discharge port 25 is connected to the inside and outside of the drying cylinder 2, and a sealing door 24 is provided at one end of the discharge port 25 connected to the outside of the drying cylinder 2, ensuring that the hose 26 can supply air to the inside of the rotating cylinder 13 when the rotating cylinder 13 rotates.

[0048] A motor 11, a reducer 10 and a bearing seat 17 are fixedly installed on one end of the upper surface of the base 1. A first pulley is fixedly provided on the driving shaft of the motor 11, and a second pulley is fixedly provided on the driving shaft of the reducer 10. A transmission belt is commonly sleeved between the first pulley and the second pulley. A driven shaft 20 is provided on the reducer 10, and a connecting shaft 18 is rotatably provided on the bearing seat 17. A flange connecting plate 19 is fixedly provided at one end of the bearing seat 17 and the driven shaft 20 that are close to each other. The two flange connecting plates 19 are fixed by bolts. A second gear 9 is fixedly provided in the middle of the outer ring of the connecting shaft 18. A first gear 8 is fixedly provided on the shaft 37, and a transmission toothed belt is commonly provided between the first gear 8 and the second gear 9; when working, the motor 11 is started to drive the first pulley to rotate, and when the first pulley rotates, the second pulley is driven to rotate through the transmission belt. When the driving pulley on the reducer 10 rotates, the driven shaft 20 is driven to rotate after the corresponding deceleration through the transmission mechanism inside it. When the driven shaft 20 rotates, it drives the connecting shaft 18 and the second gear 9 to rotate. When the second gear 9 rotates, it drives the first gear 8 to rotate through the transmission toothed belt. When the first gear 8 rotates, it drives the rotating cylinder 13 inside the drying cylinder 2 to rotate, thereby achieving the transmission purpose.

[0049] It should be noted that the transmission belt, transmission toothed belt and transmission mechanism are not shown in the figure. They are common existing transmission components and will not be described in detail here.

[0050] Support plates 12 are fixedly provided at both ends of the upper surface of the base 1 . The support plates 12 are supported on the outer circle of the lower end of the drying cylinder 2 , so that the drying cylinder 2 is stably installed above the base 1 .

[0051] A sealing ring 53 is provided at one end of the gas pipeline 22 that is movably inserted into the rotating cylinder 13 . The sealing ring 53 is fixedly arranged at the outer ring of the gas pipeline 22 . The sealing ring 53 is used to achieve sealing between the rotating cylinder 13 and the gas pipeline 22 .

Claims

1. An ammonium perchlorate drying tail gas microparticle recovery system, comprising a base (1), a drying cylinder (2) being arranged above the base (1), and characterized in that: The drying cylinder (2) is a cylindrical structure. A second end cover (4) is provided at one end of the drying cylinder (2), and a first end cover (3) is provided at the other end. A support sleeve (23) is provided on the first end cover (3). A power shaft (37) is rotatably provided on the second end cover (4). One end of the power shaft (37) extends into the interior of the drying cylinder (2). A rotating cylinder (13) is provided inside the drying cylinder (2). One end of the power shaft (37) extending into the interior of the drying cylinder (2) is fixedly mounted on the end of the rotating cylinder (13). The gas pipeline (22) is rotatably provided at one end of the rotating cylinder (13) away from the power shaft (37). A stirring rod (14) is fixedly provided on the outer ring of the rotating cylinder (13). The outer ring of the cylinder (13) is further provided with a first air outlet (16), and the first air outlet (16) and the stirring rod (14) are both provided with a plurality of them. The first air outlet (16) penetrates the inner and outer surfaces of the rotating cylinder (13) at the same time. A triangular stirring frame (15) is fixedly provided at the end of the stirring rod (14), and a second air outlet (21) is provided at one end of the stirring rod (14) close to the triangular stirring frame (15). A one-way valve is provided in each of the second air outlet (21) and the first air outlet (16). A feed pipe (7), a second air intake pipe (6) and a first air intake pipe (5) are fixedly provided at the upper end of the drying cylinder (2) from the end close to the second end cover (4) to the end close to the first end cover (3). A recovery shell (30) is provided above the drying cylinder (2), and both ends of the recovery shell (30) are integrally provided with a communication pipe (52), the communication pipe (52) at one end of the recovery shell (30) is connected to the second suction pipe (6), and the communication pipe (52) at the other end of the recovery shell (30) is connected to the first suction pipe (5), a gas chamber (29) is provided in the middle of the recovery shell (30), and filter components are provided on both sides of the gas chamber (29), and a first air pump (28) and a second air pump (27) are fixedly installed on the upper surface of the recovery shell (30), and the first air pump (28) and the second air pump (27) are both communicated with the interior of the gas chamber (29), and a hose (26) connected to the end of the gas pipe (22) is provided on the first air pump (28); The filter assembly includes a movable mesh plate (41), a fixed mesh plate (38) and a sponge layer (39), wherein the four sides of the fixed mesh plate (38) are respectively fixed on the four inner walls of the recovery shell (30), and the four sides of the movable mesh plate (41) are respectively movably attached to the four inner walls of the recovery shell (30), and the sponge layer (39) is fixedly connected between the movable mesh plate (41) and the fixed mesh plate (38), and a support shaft (45) is fixedly welded to the middle of one side of the fixed mesh plate (38) close to the movable mesh plate (41), and the support shaft (45) is movably passed through the middle of the movable mesh plate (41), and one end of the support shaft (45) movably passed through the middle of the movable mesh plate (41) is fixedly set A fixed mounting plate (47) is provided, and the fixed mounting plate (47) is fixed to the inner wall of the recovery shell (30) by screws. A positioning ring (44) is fixedly welded on the outer ring of the support shaft (45), and a rotating sleeve (42) is rotatably provided on the outer ring of the support shaft (45). A first spring (43) is fixedly connected between the sides of the positioning ring (44) and the rotating sleeve (42) that are close to each other. A fan blade (46) is fixedly provided on the outer ring of the rotating sleeve (42). A side of the rotating sleeve (42) away from the positioning ring (44) is movably inlaid with a steel ball (40), and the steel ball (40) is movably fitted on a side of the movable mesh plate (41) away from the fixed mesh plate (38); The bottom of the gas chamber (29) is provided with a V-shaped inclined surface, and the bottom of the V-shaped inclined surface is provided with a threaded hole (33) penetrating the inside and outside of the gas chamber (29), and the threaded hole (33) is connected to a water collecting tank (34) through threaded engagement; A primary filter assembly is provided in the communicating pipe (52), and the primary filter assembly includes a filter plate (48), a filter hole (49), a second spring (50) and a rectangular plate (51). The filter plate (48) is provided with a plurality of filter plates along the height direction of the communicating pipe (52). The filter holes (49) simultaneously penetrate the upper and lower surfaces of the filter plate (48). A plurality of filter holes (49) are provided on the filter plate (48). The rectangular plates (51) are provided in pairs. A pair of rectangular plates (51) are fixedly connected to the inner wall of the communicating pipe (52) above and below the filter plate (48). The second spring (50) is fixedly connected to a side of the rectangular plate (51) and the filter plate (48) that is close to each other. The filter hole (49) has a conical hole structure. The lower end opening of the filter hole (49) is smaller than the upper end opening of the filter hole (49), and the lower end opening of the filter hole (49) at the lower position is larger than the lower end opening of the filter hole (49) at the upper position.

2. The ammonium perchlorate drying tail gas microparticle recovery system according to claim 1, characterized in that: The second air intake duct (6) and the first air intake duct (5) are both provided with a flow rate control component, the flow rate control component comprising a rotating shaft (32) and a baffle (31), the rotating shaft (32) being rotatably provided in the corresponding second air intake duct (6) or the first air intake duct (5), the baffle (31) being fixedly connected to the outer ring of the rotating shaft (32), two baffles (31) being provided on the outer ring of the rotating shaft (32), and the two baffles (31) being distributed at an angle of 180 degrees.

3. The ammonium perchlorate drying tail gas microparticle recovery system according to claim 1, characterized in that: The feed pipe (7) is connected to a feed hopper (35), and a material pump (36) is provided at the bottom of the feed hopper (35).

4. The ammonium perchlorate drying tail gas microparticle recovery system according to claim 1, characterized in that: A support sleeve (23) is fixedly mounted on the first end cover (3), a gas pipeline (22) is rotatably arranged in the support sleeve (23), a discharge port (25) is provided at the lower end of the first end cover (3), the discharge port (25) is connected to the inside and outside of the drying cylinder (2), and a sealing door (24) is provided at one end of the discharge port (25) connected to the outside of the drying cylinder (2).

5. The ammonium perchlorate drying tail gas microparticle recovery system according to claim 1, characterized in that: A motor (11), a reducer (10) and a bearing seat (17) are fixedly mounted on one end of the upper surface of the base (1); a first pulley is fixedly arranged on the driving shaft of the motor (11); a second pulley is fixedly arranged on the driving shaft of the reducer (10); a transmission belt is sleeved between the first pulley and the second pulley; a driven shaft (20) is arranged on the reducer (10); a connecting shaft (18) is rotatably arranged on the bearing seat (17); flange connection plates (19) are fixedly arranged on the ends of the bearing seat (17) and the driven shaft (20) close to each other; the two flange connection plates (19) are fixed by bolts; a second gear (9) is fixedly arranged in the middle of the outer ring of the connecting shaft (18); a first gear (8) is fixedly arranged on the power shaft (37); a transmission toothed belt is sleeved between the first gear (8) and the second gear (9).

6. The ammonium perchlorate drying tail gas microparticle recovery system according to claim 1, characterized in that: Support plates (12) are fixedly provided at both ends of the upper surface of the base (1), and the support plates (12) are supported on the outer ring of the lower end of the drying cylinder (2).

7. The ammonium perchlorate drying tail gas microparticle recovery system according to claim 1, characterized in that: A sealing ring (53) is provided at one end of the gas pipeline (22) that is movably inserted into the interior of the rotating cylinder (13). The sealing ring (53) is fixedly arranged at the outer ring of the gas pipeline (22).

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