A mixing device and method for ammonium perchlorate production

Abstract

The application relates to the technical field of ammonium perchlorate production, in particular to a mixing device and method for ammonium perchlorate production. The device comprises a tank body, fixed rings are fixed concentrically at the upper end and the lower end in the tank body, gear rings are rotationally connected concentrically in the fixed rings, crossbars are fixed in the gear rings, first sliding channels and second sliding channels are arranged on the crossbars, first sliding blocks are slidably arranged in the first sliding channels, second sliding blocks are slidably arranged in the second sliding channels, the first sliding blocks are connected through rotating rods, the second sliding blocks are connected through rotating rods, moving frames are fixedly connected between the first sliding blocks on the upper side and the lower side and the second sliding blocks on the upper side and the lower side, and scraper plates are elastically and slidably connected in the moving frames. The crossbar is driven to rotate to alternately drive two vertical scraper plates to directionally scrape the tank wall area near the end of the discharge pipe, the scraper plates are in elastic contact with the tank wall under the action of the springs, the crystallized materials are adaptively scraped, the discharge port is prevented from being blocked due to crystallization hardening, and continuous production is guaranteed.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of ammonium perchlorate production, and particularly relates to a mixing device and method for ammonium perchlorate production. BACKGROUND

[0002] In the field of chemical production, ammonium perchlorate is an important oxidizing agent and propellant raw material, and its production process is highly dependent on mixing devices. Efficient mixing not only affects product quality, but also directly relates to safe production and energy consumption.

[0003] Traditional ammonium perchlorate production mixing devices usually include basic structures such as stirring tanks, feed pipes and discharge pipes, but there are significant deficiencies in actual application. The internal structure of the equipment is simple, and the material is easy to be left in the mixing process, which leads to waste of raw materials and difficulty in subsequent cleaning. Especially in the discharge stage, the residual material is easy to crystallize and deposit near the discharge pipe port, causing blockage problems, which not only reduces the production efficiency, but also increases the equipment maintenance frequency and shutdown risk. In addition, the stirring mechanism of the existing device is single, and the mixing efficiency is low, which cannot fully disperse the ammonium perchlorate raw material, so that the reaction is insufficient, affecting the uniformity and purity of the product. Therefore, it is urgent to develop a new mixing device to solve the problems of material residue and blockage, and to improve the economic efficiency and reliability of the overall process. SUMMARY

[0004] The main purpose of the application is to provide a mixing device and method for ammonium perchlorate production, which can avoid the crystallization of material on the inner wall of the tank near the inlet end of the discharge pipe and block the discharge pipe. The mixing device for ammonium perchlorate production can improve the mixing efficiency of the material in the tank for producing ammonium perchlorate.

[0005] In order to achieve the above-mentioned purpose, the technical scheme provided by the application is:

[0006] The utility model provides a mixing device for ammonium perchlorate production, including jar body, the upper end of jar body is installed with feed pipe, the lower end of jar body's lateral wall is installed with discharge pipe, the upper and lower ends in jar body all are fixed with fixed ring concentricity, all rotate and connect in fixed ring's inside gear ring, all are fixed with cross in gear ring's inside, all are seted up first slide and second slide on cross, first slide and second slide are perpendicular and communicate, the upper and lower ends of jar body all are installed with drive assembly, two drive assemblies can drive the gear ring of upper and lower sides rotate at the same speed, the first slide in first slide and the second slide in second slide are slidably arranged, the first slide and the second slide are connected through the rotating rod, the second gear is fixed in the middle of rotating rod, the third gear meshing with the second gear is fixed concentrically in the cylinder, when the gear ring rotates, the first slide and the second slide can slide in the first slide and the second slide under the meshing effect of the second gear and the third gear, the first slide of upper and lower sides and the second slide of upper and lower sides are all fixedly connected between the moving frame, two moving frames are perpendicular, the moving frame is elastically slidably connected with the scraper in the moving frame, the scraper extends to the outside of the moving frame at both ends, the moving frame is parallel to the moving frame outside the scraper, the moving frame is provided with a passage, the moving frame is provided with a plurality of spray holes outside, the spray hole is communicated with the passage, the first slide and the second slide are all fixed with liquid pump, the passage in the moving frame fixedly connected with the first slide and the liquid pump in the first slide are communicated, the passage in the moving frame fixedly connected with the second slide and the liquid pump in the second slide are communicated, during the rotation of the gear ring, two scrapers can scrape the wall of the area of the inner wall of the jar body on the side of the discharge pipe.

[0007] Specifically, the drive assembly includes a motor fixed on the jar body, the output shaft of the motor is concentrically fixed with a rotating shaft connected to the jar body, a first gear is fixed concentrically on the rotating shaft, and the first gear is meshed with the gear ring on one side.

[0008] Specifically, the number of third gears is two, and the two third gears are arranged above and below, and the third gears are meshed with the second gears on the upper and lower sides, respectively. A fixed shaft is fixed concentrically on the third gear, and the fixed shafts on the upper and lower sides are fixedly connected with the top plate and the bottom plate of the jar body, respectively.

[0009] Specifically, a plurality of through holes are formed in the lower end of the lower fixed ring.

[0010] Specifically, recesses are formed in the upper and lower ends of the scraper, an inner plate is slidably arranged in the recess, the inner plate is fixedly connected with the moving frame outside the scraper, and the inner plate is connected with the scraper through a spring.

[0011] Specifically, liquid inlets are formed in the first slide and the second slide, the liquid inlet on the first slide is communicated with the inlet of the liquid pump in the first slide, and the liquid inlet on the second slide is communicated with the inlet of the liquid pump in the second slide.

[0012] Specific, the first slider and the second slider are fixed with connecting shafts, and the connecting shafts are rotationally connected with the rotating rod.

[0013] The raw material for producing ammonium perchlorate is added into the tank body through the feeding pipe, and then the upper and lower driving assemblies are started simultaneously, the upper and lower driving assemblies can drive the upper and lower gear rings to rotate, in the process of rotation of the upper and lower gear rings, the upper and lower crosses rotate, in the process of rotation of the upper and lower crosses, the second gear and the third gear mesh and rotate, the rotating rod rotates, in the process of rotation of the rotating rod, the first slider slides in the first slide, and the second slider slides in the second slide; in the initial state, one end of the scraper between the two second sliders is in contact with the inner wall of the tank body, and the spring between the two second sliders is compressed, in the process of rotation of the cross, the second slider slides in the second slide, one end of the scraper between the two second sliders scrapes the inner wall area of the tank body on one side of the discharge pipe, and meanwhile, the scraper between the two second sliders gradually resets; at this time, the scraper between the two first sliders gradually approaches the inner wall of the tank body, when one end of the scraper between the two first sliders is in contact with the inner wall of the tank body, in the process of rotation of the cross, the two first sliders gradually move away from the center of the tank body in the two first slides respectively, the scraper between the two first sliders scrapes the inner wall area of the tank body on one side of the discharge pipe, the scraper between the two first sliders and the moving frame move relatively, the spring between the two first sliders deforms and stores energy, with the rotation of the cross, when the two first sliders move towards the center of the tank body in the two first slides respectively, the scraper between the two first sliders and the moving frame continue to move relatively under the action of the spring, the spring gradually restores, in the process of rotation of the gear ring, the two scrapers can scrape the inner wall area of the tank body on one side of the discharge pipe in turn, so that the port of the discharge pipe is prevented from being blocked by crystallized material, and meanwhile, the scraper can move relatively with the moving frame outside in the process of rotation in the tank body, so that the stirring effect on the material in the tank body can be improved; the liquid pump is started in the process of rotation of the gear ring, the liquid pump sprays the material in the lower part of the tank body from the spray hole through the channel, and therefore the mixing efficiency of the material can be improved.

[0014] Compared with the prior art, the present application has the following advantages:

[0015] 1. The rotation of the cross drives two vertical scrapers to alternately scrape the tank wall area near the port of the discharge pipe, the scraper is in elastic contact with the tank wall under the action of the spring, the crystallized material is scraped automatically, the discharge port is prevented from being blocked due to crystallization hardening, and continuous production is ensured.

[0016] 2、When the gear ring drives the cross to rotate, the first slider and the second slider slide in the first slide and the second slide respectively, drive the scraper to rotate and adjust simultaneously (radial expansion and contraction), break the material layering and strengthen the shear force. The scraper and the moving frame are connected by the spring, and the relative displacement occurs continuously during the movement, forming high-frequency micro-vibration, further dispersing the particle aggregation. The liquid pump extracts the material at the bottom of the tank, and sprays high-pressure fluid from the nozzle through the internal channel of the moving frame, improving the mixing efficiency of the material. The jet direction changes dynamically with the movement of the moving frame, forming a three-dimensional turbulent flow field, significantly shortening the mixing time and improving the product uniformity.

[0017] 3、The upper and lower symmetrical motor drive system ensures that the gear ring rotates at the same speed and in the same direction, avoids mechanism interference, and ensures the accuracy and stability of the movement trajectory. The scraper and the jet flow cooperate to wash the tank wall and the moving parts in real time, preventing the material from hardening. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a schematic view of the present application.

[0019] Figure 2 is a schematic view of the internal structure of the present application.

[0020] Figure 3 is Figure 2 is an enlarged view of area A.

[0021] Figure 4 is a schematic view of the cross in the gear ring.

[0022] Figure 5 is a schematic view of the connection between the rotating rod and the second gear.

[0023] Figure 6 is a sectional view of the connection structure between the moving frame and the scraper.

[0024] Figure 7 is Figure 6 is an enlarged view of area B.

[0025] Figure 8 is a partial sectional view of the connection structure between the moving frame and the scraper.

[0026] Figure 9 is Figure 8 is an enlarged view of area C.

[0027] Figure 10 is a schematic view of the scraper between the two second sliders scraping the inner wall of the tank.

[0028] Figure 11 is a schematic view of the second slider moving in the second slide towards the center of the tank.

[0029] Figure 12A schematic view of the scraper pair between the two first sliding blocks scraping the inner wall of the tank body.

[0030] Figure 13 A schematic view of the first sliding block moving towards the center of the tank body in the first sliding channel.

[0031] The component names in the drawings are: 1, tank body; 2, feed pipe; 3, discharge pipe; 4, fixed ring; 5, through hole; 6, gear ring; 7, motor; 8, rotating shaft; 9, first gear; 10, first sliding channel; 11, second sliding channel; 12, first sliding block; 13, second sliding block; 14, connecting shaft; 15, rotating rod; 16, second gear; 17, moving frame; 18, inner plate; 19, scraper; 20, spring; 21, liquid pump; 22, liquid inlet; 23, channel; 24, spray hole; 25, fixed shaft; 26, third gear. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, not all.

[0033] As shown in Figures 1-13 A mixing device for ammonium perchlorate production, comprising a tank body 1, a feed pipe 2 is installed on the upper end of the tank body 1, and a discharge pipe 3 is installed on the lower end of the side wall of the tank body 1.

[0034] The upper and lower ends of the tank body 1 are both concentrically fixed with fixed rings 4, and the fixed rings 4 are both concentrically and rotatably connected with gear rings 6.

[0035] A plurality of through holes 5 are formed in the lower end of the lower fixed ring 4. By forming a plurality of through holes 5 in the lower end of the lower fixed ring 4, when discharging the material in the tank body 1 through the discharge pipe 3, the material in the tank body 1 can be prevented from remaining in the lower fixed ring 4.

[0036] The gear rings 6 are both fixed with crossbars, the first sliding channel 10 and the second sliding channel 11 are both formed on the crossbars, and the first sliding channel 10 and the second sliding channel 11 are perpendicular and communicate.

[0037] The upper and lower ends of the tank body 1 are both installed with driving assemblies, and the two driving assemblies can drive the gear rings 6 on the upper and lower sides to rotate at the same speed and in the same direction.

[0038] The driving assembly comprises a motor 7 fixed on the tank body 1, the output shaft of the motor 7 is concentrically and fixedly connected with a rotating shaft 8 rotatably connected to the tank body 1, the rotating shaft 8 is concentrically fixed with a first gear 9, and the first gear 9 is engaged with the gear ring 6 on one side thereof.

[0039] The first sliding block 12 is slidably arranged in the first sliding channel 10, and the second sliding block 13 is slidably arranged in the second sliding channel 11; the first sliding block 12 and the second sliding block 13 are connected through a rotating rod 15.

[0040] The second gear 16 is fixed in the middle of the rotating rod 15, and the third gear 26 engaged with the second gear 16 is fixed concentrically in the cylinder; when the gear ring 6 rotates, the first sliding block 12 and the second sliding block 13 can slide in the first sliding channel 10 and the second sliding channel 11 respectively under the meshing action of the second gear 16 and the third gear 26.

[0041] The number of the third gear 26 is two, and the two third gears 26 are arranged above and below; the two third gears 26 are engaged with the second gears 16 on the upper and lower sides respectively, and the third gear 26 is fixed concentrically with a fixed shaft 25; the fixed shafts 25 on the upper and lower sides are fixedly connected with the top plate and the bottom plate of the tank body 1 respectively.

[0042] The moving frame 17 is fixedly connected between the first sliding block 12 on the upper side and the first sliding block 12 on the lower side and between the second sliding block 13 on the upper side and the second sliding block 13 on the lower side; the two moving frames 17 are perpendicular, and the scraper 19 is elastically and slidably connected in the moving frame 17; the scraper 19 extends to the outside of the moving frame 17 at both ends, and the scraper 19 is parallel to the moving frame 17 on the outside.

[0043] Specifically, the recess is arranged at both ends of the scraper 19, and the inner plate 18 is slidably arranged in the recess; the inner plate 18 is fixedly connected with the moving frame 17 on the outside of the scraper 19, and the inner plate 18 is connected with the scraper 19 through the spring 20.

[0044] The channel 23 is arranged in the moving frame 17, and a plurality of spray holes 24 are arranged on the outside of the moving frame 17; the spray holes 24 are communicated with the channel 23; the liquid pump 21 is fixedly arranged in the first sliding block 12 and the second sliding block 13 on the lower side; the channel 23 in the moving frame 17 fixedly connected with the first sliding block 12 is communicated with the liquid pump 21 in the first sliding block 12, and the channel 23 in the moving frame 17 fixedly connected with the second sliding block 13 is communicated with the liquid pump 21 in the second sliding block 13.

[0045] The liquid inlet 22 is arranged on the first sliding block 12 and the second sliding block 13 on the lower side; the liquid inlet 22 on the first sliding block 12 is communicated with the inlet of the liquid pump 21 in the first sliding block 12, and the liquid inlet 22 on the second sliding block 13 is communicated with the inlet of the liquid pump 21 in the second sliding block 13.

[0046] During the rotation of the gear ring 6, the two scrapers 19 can scrape the inner wall area of the tank body 1 on one side of the discharge pipe 3 respectively.

[0047] In operation, raw materials for producing ammonium perchlorate are added into the tank body 1 through the feeding pipe 2, and then the upper and lower motors 7 are started simultaneously.

[0048] During the rotation of the upper and lower tooth rings 6, the upper and lower crosses rotate. During the rotation of the upper and lower crosses, the second gear 16 meshes with the third gear 26 to rotate the rotating rod 15.

[0049] As shown in Figures 10-13 the initial state, one end of the scraper 19 between the upper and lower second sliding blocks 13 is in contact with the inner wall of the tank body 1. For ease of description, the scraper 19 between the upper and lower second sliding blocks 13 is referred to as a second plate, and the scraper 19 between the upper and lower first sliding blocks 12 is referred to as a first plate.

[0050] In the initial state, the spring 20 between the upper and lower second sliding blocks 13 is compressed.

[0051] During the rotation of the cross, the second sliding block 13 slides in the second slide 11 and gradually approaches the center of the tank body 1, and one end of the second plate maintains the wall scraping action on the area of the inner wall of the tank body 1 on one side of the discharge pipe 3. At the same time, the second plate gradually resets.

[0052] At this time, the first plate gradually approaches the inner wall of the tank body 1, and when one end of the first plate is in contact with the inner wall of the tank body 1, during the rotation of the cross, the upper and lower first sliding blocks 12 gradually move away from the center of the tank body 1 in the upper and lower first slides 10, respectively. The first plate scrapes the wall of the area of the inner wall of the tank body 1 on one side of the discharge pipe 3, and at the same time, the first plate and the moving frame 17 move relative to each other, and the spring 20 between the upper and lower first sliding blocks 12 deforms and stores energy.

[0053] With the rotation of the cross, when the upper and lower first sliding blocks 12 gradually move towards the center of the tank body 1 in the upper and lower first slides 10, respectively, the scraper 19 between the upper and lower first sliding blocks 12 and the moving frame 17 continue to move relative to each other under the action of the spring 20, and the spring 20 and the first plate gradually reset. During the rotation of the tooth ring 6, the two scrapers 19 can sequentially scrape the wall of the area of the inner wall of the tank body 1 on one side of the discharge pipe 3, avoiding the blockage of the port of the discharge pipe 3 by material crystallization.

[0054] At the same time, during the rotation of the scraper 19 in the tank body 1, the scraper 19 can move relative to the moving frame 17 on the outer side of the scraper 19, which can improve the stirring effect of the material in the tank body 1.

[0055] The gear ring 6 rotates to start the liquid pump 21. The liquid pump 21 sprays the material in the lower part of the tank 1 through the liquid inlet 22 and the channel 23 from the spray hole 24, thereby accelerating the mixing efficiency of the material.

[0056] In Figures 10-13 In the figure, the arrow on the first slide 10 is the movement direction of the first slider 12 in the first slide 10, and the arrow on the second slide 11 is the movement direction of the second slider 13 in the second slide 11.

[0057] The above description is only the preferred embodiment of the present application and is not used to limit the present application. Any modification, equivalent replacement and improvement within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A mixing device for ammonium perchlorate production, comprising a tank body (1), a feeding pipe (2) is installed on the upper end of the tank body (1), a discharging pipe (3) is installed on the lower end of the side wall of the tank body (1), fixed rings (4) are fixed concentrically on the upper and lower ends in the tank body (1), characterized in that, The fixed ring (4) is connected with the gear ring (6) in the same concentric rotation, the gear ring (6) is fixed with the cross in it, the first slide (10) and the second slide (11) are opened in the cross, the first slide (10) and the second slide (11) are perpendicular and connected, the upper and lower ends of the tank body (1) are provided with the driving assembly, the two driving assemblies can drive the gear ring (6) on the upper and lower sides to rotate at the same speed and in the same direction, the first slide (12) is slidably arranged in the first slide (10), the second slide (13) is slidably arranged in the second slide (11), the first slide (12) and the second slide (13) are connected by the rotating rod (15), the second gear (16) is fixed in the middle of the rotating rod (15), the third gear (26) engaged with the second gear (16) is fixed concentrically in the cylinder, the first slide (12) and the second slide (13) can slide in the first slide (10) and the second slide (11) respectively under the meshing effect of the second gear (16) and the third gear (26) when the gear ring (6) rotates, the first slide (12) on the upper and lower sides and the second slide (13) on the upper and lower sides are fixedly connected with the moving frame (17), the two moving frames (17) are perpendicular, the moving frame (17) is elastically and slidably connected with the scraper (19) in it, the both ends of the scraper (19) extend to the outside of the moving frame (17), the scraper (19) is parallel to the moving frame (17) outside it, the channel (23) is opened in the moving frame (17), a plurality of spray holes (24) are opened on the outside of the moving frame (17), the spray holes (24) are communicated with the channel (23), the first slide (12) and the second slide (13) below are fixed with the liquid pump (21), the channel (23) in the moving frame (17) fixedly connected with the first slide (12) is communicated with the liquid pump (21) in the first slide (12), the channel (23) in the moving frame (17) fixedly connected with the second slide (13) is communicated with the liquid pump (21) in the second slide (13), the two scrapers (19) can scrape the wall of the tank body (1) on one side of the discharge pipe (3) respectively during the rotation of the gear ring (6).

2. The mixing device for producing ammonium perchlorate according to claim 1, wherein The driving assembly comprises a motor (7) fixed on the tank body (1), the output shaft of the motor (7) is fixedly connected with the rotating shaft (8) concentrically connected with the rotating seal on the tank body (1), the first gear (9) is fixed concentrically on the rotating shaft (8), the first gear (9) is engaged with the gear ring (6) on one side.

3. The mixing device for producing ammonium perchlorate according to claim 1, wherein The number of the third gear (26) is two, the two third gears (26) are arranged above and below, the two third gears (26) are engaged with the second gears (16) on the upper and lower sides respectively, the fixed shaft (25) is fixed concentrically on the third gear (26), the fixed shaft (25) on the upper and lower sides is fixedly connected with the top plate and the bottom plate of the tank body (1) respectively.

4. The mixing device for producing ammonium perchlorate according to claim 1, wherein A plurality of through holes (5) are opened in the lower end of the lower fixed ring (4).

5. The mixing device for producing ammonium perchlorate according to claim 1, wherein The upper and lower ends of the scraper (19) are provided with grooves, and the inner plates (18) are slidably arranged in the grooves.

6. The mixing device for ammonium perchlorate production according to claim 1, wherein The lower first slider (12) and the second slider (13) are both provided with liquid inlets (22), the liquid inlet (22) on the first slider (12) is communicated with the inlet of the liquid pump (21) in the first slider (12), and the liquid inlet (22) on the second slider (13) is communicated with the inlet of the liquid pump (21) in the second slider (13).

7. The mixing device for ammonium perchlorate production according to claim 1, characterized in that, The first slider (12) and the second slider (13) are both fixedly provided with connecting shafts (14), and the connecting shafts (14) are rotationally connected with the rotating rods (15).

8. The use of a mixing device for the production of ammonium perchlorate according to claim 5, characterized in that The raw material for producing ammonium perchlorate is added into the tank body (1) through the feeding pipe (2), and then the driving assemblies on the upper and lower sides are started simultaneously. The driving assemblies on the upper and lower sides can drive the gear rings (6) on the upper and lower sides to rotate. In the process of rotation of the gear rings (6) on the upper and lower sides, the crosses on the upper and lower sides rotate. In the process of rotation of the crosses on the upper and lower sides, the second gear (16) and the third gear (26) are engaged and rotated. The rotating rod (15) rotates. In the process of rotation of the rotating rod (15), the first sliding block (12) slides in the first sliding channel (10), and the second sliding block (13) slides in the second sliding channel (11). In the initial state, one end of the scraper (19) between the two second sliding blocks (13) is in contact with the inner wall of the tank body (1), and the spring (20) between the two second sliding blocks (13) is compressed. In the process of rotation of the cross, the second sliding block (13) slides in the second sliding channel (11), and one end of the scraper (19) between the two second sliding blocks (13) scrapes the wall of the tank body (1) on one side of the discharge pipe (3), while the scraper (19) between the two second sliding blocks (13) gradually resets. At this time, the scraper (19) between the two first sliding blocks (12) gradually approaches the inner wall of the tank body (1). When one end of the scraper (19) between the two first sliding blocks (12) is in contact with the inner wall of the tank body (1), in the process of rotation of the cross, the two first sliding blocks (12) gradually move away from the center of the tank body (1) in the two first sliding channels (10), respectively. The scraper (19) between the two first sliding blocks (12) scrapes the wall of the tank body (1) on one side of the discharge pipe (3), and the scraper (19) and the moving frame (17) between the two first sliding blocks (12) move relatively, and the spring (20) between the two first sliding blocks (12) deforms and stores energy. With the rotation of the cross, when the two first sliding blocks (12) move towards the center of the tank body (1) in the two first sliding channels (10), respectively, the scraper (19) and the moving frame (17) between the two first sliding blocks (12) continue to move relatively under the action of the spring (20), the spring (20) gradually restores, and in the process of rotation of the gear ring (6), the two scrapers (19) can scrape the wall of the tank body (1) on one side of the discharge pipe (3) in turn, so as to avoid the blockage of the discharge port of the discharge pipe (3) caused by material crystallization. At the same time, in the process of rotation of the scraper (19) in the tank body (1), the scraper (19) can move relatively with the moving frame (17) outside the tank body (1), so as to improve the stirring effect of the material in the tank body (1). In the process of rotation of the gear ring (6), the liquid pump (21) is started. The liquid pump (21) sprays the material in the lower part of the tank body (1) through the channel (23) and from the spray hole (24), so as to accelerate the mixing efficiency of the material.

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