Preparation device of superfine fluorite mineral powder

Abstract

The invention belongs to the technical field of ore processing, and particularly relates to a superfine fluorite mineral powder preparation device which comprises a base, the top of the base is fixedly connected with two parallel fixing rings, the interiors of the two fixing rings are rotatably connected with the same shell, one end of the shell is provided with a discharge port, and the discharge port is provided with a discharge port. A feeding port is formed in the end, away from the discharging port, of the shell, an inner cylinder is fixedly connected to the inner wall of the shell, a transmission gear is fixedly connected to the circumference of the outer wall of the end, close to the discharging port, of the shell, and a first driving mechanism is fixedly connected to the top of the base. According to the ore crushing device, additional kinetic energy of equipment is accumulated as potential energy, the potential energy is released in the ball milling process, the purpose of improving the ore crushing efficiency can be achieved, the semicircular structure of the C-shaped sliding groove enables a closed ring and a sliding block to generate temporary friction with the inner wall of the inner cylinder only in the acceleration stage, and the ore crushing efficiency is improved. And the mutual abrasion among the components of the device is greatly reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of ore processing, and in particular to a device for preparing ultrafine fluorite mineral powder. Background Art

[0002] The main component of fluorite is calcium fluoride, which has a very wide range of industrial uses and is mainly used in industries such as steel, aluminum smelting, and chemical industry. The mechanical pulverization method is one of the processes for preparing fluorite mineral powder, which has the characteristics of low cost, simple process, and large output. Commonly used pulverizing equipment includes jet mills, mechanical impact pulverizers, vibration mills, stirred mills, colloid mills, and ball mills, etc.

[0003] After retrieval, a Chinese patent application with the publication number CN221046230U discloses a ball milling tank and ball milling equipment, including a tank body and a scraping mechanism, which can keep the tank body stationary and the scraping member rotates along the axis of the tank body to achieve scraping, or the scraping member is stationary and the tank body rotates along its own axis to form relative rotation between the two, so that the scraping member can scrape the material on the inner wall of the tank body along the circumferential direction of the tank body to ensure the ball milling effect and quality.

[0004] The above patent improves the ball milling efficiency through the scraping mechanism. However, the scraping mechanism is fixedly installed and always rubs against the container during the ball milling process, which is prone to phenomena such as overheating, fatigue, and wear, greatly reducing the service life of the device and being not suitable for application in the process of preparing ultrafine fluorite mineral powder. There is an urgent need to design a device for preparing ultrafine fluorite mineral powder to solve the above problems while improving the efficiency. Summary of the Invention

[0005] Based on the technical problems that the existing ball milling device is prone to wear, has no practical value, and cannot effectively improve the powder preparation efficiency, the present invention proposes a device for preparing ultrafine fluorite mineral powder.

[0006] A preparation device for ultrafine fluorite mineral powder proposed by the present invention includes a base. A top of the base is fixedly connected with two parallel fixed rings. The inside of the two fixed rings is rotationally connected with the same outer shell. One end of the outer shell is provided with a discharge port, and one end of the outer shell far from the discharge port is provided with a feed port. An inner cylinder is fixedly connected to an inner wall of the outer shell. A transmission gear is fixedly connected to a circumference of an outer wall of the outer shell near the discharge port. A first driving mechanism is fixedly connected to the top of the base. The transmission gear is in transmission connection with a power output end of the first driving mechanism. A material selection bin is rotationally connected to one end of the outer shell near the feed port. A support is fixedly connected to an outer wall of a bottom of the material selection bin. The support is fixedly connected to the top of the base. A screw rod is rotationally connected to a bottom of the material selection bin. One end of the screw rod is fixedly connected with a driven wheel. The driven wheel is rotationally connected to an outer wall of the material selection bin. A second driving mechanism is fixedly connected to an inner wall of a bottom of the support. The driven wheel is in transmission connection with a power output end of the second driving mechanism. A support cylinder is fixedly connected to an inner wall of the material selection bin. A telescopic rod is slidably connected to an inside of the support cylinder. A thread groove is formed in an inside of the telescopic rod. The screw rod is in threaded connection with the thread groove inside the telescopic rod. A bottom of one end of the telescopic rod far from the material selection bin is fixedly connected with a vertically arranged first connecting rod. A bottom of the first connecting rod is fixedly connected with a horizontally arranged stirring rod. The stirring rod is located inside the inner cylinder. A C-shaped sliding groove is formed in an inner wall of the inner cylinder near the discharge port. A slider is slidably connected to the inside of the C-shaped sliding groove. A sealing ring is fixedly connected to a top of the slider. A uniformly distributed paddle is fixedly connected to an inner wall of the sealing ring. A second connecting rod is fixedly connected to an outer wall of one side of the support cylinder. One end of the second connecting rod far from the support cylinder is fixedly connected with a support piece. An elastic cord is rotationally connected to one side of the support piece. One end of the elastic cord far from the support piece is fixedly connected with the sealing ring.

[0007] Preferably, a protective cover is fixedly connected to a circumference of the outer shell, and the transmission gear is located inside the protective cover.

[0008] Preferably, the first driving mechanism includes a control box, a second motor and a reduction gearbox. The control box is fixedly connected to the top of the base. The second motor is fixedly connected to the top of the control box. The reduction gearbox is in transmission connection with an output end of the second motor. The transmission gear is in transmission connection with an output end of the reduction gearbox. The second motor is electrically connected to the control box.

[0009] Preferably, the second driving mechanism includes a first motor, a driving wheel and a transmission belt. The first motor is fixedly connected to an inner wall of a bottom of the support. The driving wheel is in transmission connection with an output end of the first motor. The transmission belt is clamped in wheel grooves of the driving wheel and the driven wheel.

[0010] Preferably, a plug rod is fixedly connected to an outer wall of a bottom of the support cylinder. A cavity is formed in the stirring rod. One end of the plug rod extends into the cavity of the stirring rod. A limiting piston is fixedly connected to one end of the plug rod located inside the stirring rod. The limiting piston is slidably connected to an inner wall of the cavity of the stirring rod.

[0011] Preferably, the outer wall circumference of the mixing rod is fixedly connected with evenly distributed mixing teeth.

[0012] Preferably, a roller groove is provided on one side of the support sheet close to the inner wall of the inner cylinder, and the inner wall of the roller groove is rotatably connected with rollers evenly distributed, and the outer wall of the roller contacts the inner wall of the inner cylinder.

[0013] Preferably, the body of the paddle is provided with evenly distributed mesh holes.

[0014] Preferably, the inner wall circumference of the support tube is fixedly connected with evenly distributed energy storage rings, and both sides of the energy storage rings are arranged as symmetrically distributed inclined surfaces.

[0015] Preferably, the outer wall of the top of the telescopic rod is fixedly connected with a spring groove, the inside of the spring groove is fixedly connected with a spring, the top of the spring is fixedly connected with an impact cone, and the top of the impact cone contacts the inner wall of the support tube.

[0016] Compared with the prior art, the present invention provides a device for preparing ultrafine fluorite mineral powder, which has the following beneficial effects:

[0017] 1. A preparation device for ultrafine fluorite mineral powder is provided with a C-shaped chute, a slider, a closed ring and an elastic rope. The slider is fixed at the bottom of the closed ring. The closed ring is connected to a support sheet that does not rotate during the ball milling process through an elastic rope. During the rotation of the inner cylinder, the slider first rotates synchronously under the push of the inner wall of the tail of the C-shaped chute, and the elastic rope is also stretched. At this time, the paddle plays a conventional auxiliary mixing role. When the slider reaches the highest point, its gravitational potential energy is converted into kinetic energy, and the elastic potential energy of the elastic rope is also converted into kinetic energy, so that the slider is accelerated to fall along the C-shaped chute. In this process, in addition to the mutual force between the ore and the grinding ball, the paddle will obtain The additional acceleration shovel provided means that there is no need to add a drive device and energy. By accumulating the extra kinetic energy of the equipment as potential energy and releasing it during the ball milling process, the purpose of improving the ore crushing efficiency can be achieved. The closed ring fits the inner wall of the inner cylinder to prevent ore and grinding balls from entering the C-type chute and interfering with the sliding of the slider. At the same time, the semicircular structure of the C-type chute makes it so that the closed ring and the slider will only produce brief friction with the inner wall of the inner cylinder during the acceleration stage, which greatly reduces the mutual wear between the components of the device. The elastic rope is connected to one end of the support plate as a rotational connection, ensuring that the torque generated by the rotation of the closed ring can be released in time to prevent the elastic rope from twisting and breaking during operation.

[0018] 2. The preparation device for the ultra-fine fluorite mineral powder, by setting the first motor, telescopic rod, screw, support cylinder and mixing rod, when the inner cylinder rotates, the mixing rod is stationary relative to the ore and the grinding balls, playing a role in stirring the two, promoting the full contact between the balls and the material, enabling the ore to be broken more evenly and efficiently. The first motor drives the screw to rotate, which can adjust the lateral position of the telescopic rod, and then change the position of the mixing rod in the inner cylinder, facilitating the stirring of the ore at different grinding stages.

[0019] 3. The preparation device for the ultra-fine fluorite mineral powder, by setting the impact cone, energy storage ring and spring, when the telescopic rod moves, the side surface of the impact cone slides along the side surface of the adjacent energy storage ring. After the impact cone is stressed, it presses the spring into the spring groove to store elastic potential energy. When the impact cone moves to the other side of the energy storage ring, the spring pushes the impact cone upward to hit the inner wall of the support cylinder, causing vibration of the support cylinder, promoting the smooth passage of the material and preventing blockage inside the support cylinder in the material selection bin. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of a preparation device for an ultra-fine fluorite mineral powder proposed by the present invention;

[0021] Figure 2 is a right-view structural diagram of a preparation device for an ultra-fine fluorite mineral powder proposed by the present invention;

[0022] Figure 3 is a partial sectional structural diagram of a preparation device for an ultra-fine fluorite mineral powder proposed by the present invention;

[0023] Figure 4 is a schematic diagram of the structure at A of a preparation device for an ultra-fine fluorite mineral powder proposed by the present invention;

[0024] Figure 5 is a schematic diagram of the structure at B of a preparation device for an ultra-fine fluorite mineral powder proposed by the present invention;

[0025] Figure 6 is a schematic diagram of the structure of the mixing rod of a preparation device for an ultra-fine fluorite mineral powder proposed by the present invention;

[0026] Figure 7 is a schematic diagram of the structure of the sealing ring of a preparation device for an ultra-fine fluorite mineral powder proposed by the present invention;

[0027] Figure 8 is a schematic diagram of the structure of the C-shaped chute of a preparation device for an ultra-fine fluorite mineral powder proposed by the present invention.

[0028] In the figure: 1, base; 2, fixing ring; 3, outer shell; 4, discharge port; 5, feed inlet; 6, support; 7, material selection bin; 8, driven wheel; 9, transmission belt; 10, driving wheel; 11, first motor; 12, transmission gear; 13, protective cover; 14, control box; 15, second motor; 16, reduction gearbox; 17, support cylinder; 18, screw; 19, telescopic rod; 20, first connecting rod; 21, mixing rod; 22, limit piston; 23, inserting rod; 24, second connecting rod; 25, support piece; 26, inner cylinder; 27, elastic cord; 28, C-shaped chute; 29, closing ring; 30, paddle; 31, mesh hole; 32, spring groove; 33, impact cone; 34, spring; 35, energy storage ring; 36, roller groove; 37, roller; 38, mixing teeth; 39, slider. Detailed implementation manners

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0030] Refer to Figure 1-8, a preparation device for ultrafine fluorite mineral powder, comprising a base 1. At the top of the base 1, two parallel fixed rings 2 are fixedly connected. Inside the two fixed rings 2, the same outer shell 3 is rotatably connected. One end of the outer shell 3 is provided with a discharge port 4, and the end of the outer shell 3 far from the discharge port 4 is provided with a feed port 5. The inner wall of the outer shell 3 is fixedly connected with an inner cylinder 26. The outer circumference of the outer wall of the outer shell 3 near the discharge port 4 is fixedly connected with a transmission gear 12. At the top of the base 1, a first driving mechanism is fixedly connected. The transmission gear 12 is in transmission connection with the power output end of the first driving mechanism. One end of the outer shell 3 near the feed port 5 is rotatably connected with a material selection bin 7. The outer wall of the bottom of the material selection bin 7 is fixedly connected with a support 6, and the support 6 is fixedly connected to the top of the base 1. The bottom of the material selection bin 7 is rotatably connected with a screw rod 18. One end of the screw rod 18 is fixedly connected with a driven wheel 8, and the driven wheel 8 is rotatably connected to the outer wall of the material selection bin 7. The inner wall of the bottom of the support 6 is fixedly connected with a second driving mechanism, and the driven wheel 8 is in transmission connection with the power output end of the second driving mechanism. The inner wall of the material selection bin 7 is fixedly connected with a support cylinder 17. Inside the support cylinder 17, a telescopic rod 19 is slidably connected. A threaded groove is opened inside the telescopic rod 19, and the screw rod 18 is threadedly connected to the threaded groove inside the telescopic rod 19. The bottom of the end of the telescopic rod 19 far from the material selection bin 7 is fixedly connected with a vertically arranged first connecting rod 20. The bottom of the first connecting rod 20 is fixedly connected with a horizontally arranged mixing rod 21, and the mixing rod 21 is located inside the inner cylinder 26. On the inner wall of the inner cylinder 26 near the discharge port 4, a C-shaped sliding groove 28 is opened. Inside the C-shaped sliding groove 28, a slider 39 is slidably connected. The top of the slider 39 is fixedly connected with a sealing ring 29. The inner wall of the sealing ring 29 is fixedly connected with uniformly distributed paddle blades 30. On the outer wall of one side of the support cylinder 17, a second connecting rod 24 is fixedly connected. The end of the second connecting rod 24 far from the support cylinder 17 is fixedly connected with a support piece 25. On one side of the support piece 25, an elastic rope 27 is rotatably connected. The end of the elastic rope 27 far from the support piece 25 is fixedly connected with the sealing ring 29.

[0031] In the present invention, the outer circumference of the outer wall of the outer shell 3 is fixedly connected with a protective cover 13. The transmission gear 12 is located inside the protective cover 13, and the protective cover 13 plays a protective role outside the transmission gear 12.

[0032] In the present invention, the first driving mechanism includes a control box 14, a second motor 15 and a reduction gearbox 16. The control box 14 is fixedly connected to the top of the base 1. The second motor 15 is fixedly connected to the top of the control box 14. The reduction gearbox 16 is in transmission connection with the output end of the second motor 15. The transmission gear 12 is in transmission connection with the output end of the reduction gearbox 16. The second motor 15 is electrically connected to the control box 14. By controlling the control box 14, the start and stop of the second motor 15 are controlled. The reduction gearbox 16 adjusts the output of the second motor 15 and drives the transmission gear 12 to rotate.

[0033] In the present invention, the second driving mechanism includes a first motor 11, a driving wheel 10, and a transmission belt 9. The first motor 11 is fixedly connected to the inner wall of the bottom of the bracket 6. The driving wheel 10 is drivingly connected to the output end of the first motor 11. The transmission belt 9 is clamped in the pulley grooves of the driving wheel 10 and the driven wheel 8. The first motor 11 drives the driving wheel 10 to rotate, and the driving wheel 10 drives the driven wheel 8 through the transmission belt 8.

[0034] In the present invention, a plug rod 23 is fixedly connected to the outer wall of the bottom of the support cylinder 17. A cavity is formed inside the stirring rod 21. One end of the plug rod 23 extends into the cavity of the stirring rod 21. A limiting piston 22 is fixedly connected to the end of the plug rod 23 located inside the stirring rod 21. The limiting piston 22 is slidably connected to the inner wall of the cavity of the stirring rod 21. When the screw rod 18 rotates, it drives the telescopic rod 19 and the stirring rod 21 to move. The plug rod 23 and the connected limiting piston 22 can only slide along the inner wall of the cavity of the stirring rod 21, so that the stirring rod 21 will not rotate axially under the influence of the frictional force between itself and the screw rod 18.

[0035] In the present invention, evenly distributed stirring teeth 38 are fixedly connected to the outer circumference of the wall of the stirring rod 21. The stirring range is enlarged through the stirring teeth 38, and the ore crushing effect is further optimized.

[0036] In the present invention, roller grooves 36 are formed on one side of the support piece 25 close to the inner wall of the inner cylinder 26. Evenly distributed rollers 37 are rotatably connected to the inner walls of the roller grooves 36. The outer walls of the rollers 37 contact the inner wall of the inner cylinder 26. The support piece 25 supports the inner wall of the inner cylinder 26, strengthening the stability of the support cylinder 17. The rollers 37 convert the sliding friction between the inner wall of the inner cylinder 26 and the support piece 25 into rolling friction, reducing wear and extending the service life.

[0037] In the present invention, evenly distributed mesh holes 31 are formed in the body of the paddle blade 30. The mesh holes 31 are beneficial for the grinding balls and ore powder to pass through the paddle blade 30, reducing the resistance during the rotation of the paddle blade 30.

[0038] In the present invention, evenly distributed energy storage rings 35 are fixedly connected to the inner circumference of the wall of the support cylinder 17. Both sides of the energy storage ring 35 are provided with symmetrically distributed inclined surfaces.

[0039] In the present invention, a spring groove 32 is fixedly connected to the outer wall of the top of the telescopic rod 19. A spring 34 is fixedly connected inside the spring groove 32. The top of the spring 34 is fixedly connected to an impact cone 33. The top of the impact cone 33 contacts the inner wall of the support cylinder 17. When the telescopic rod 19 moves, the side of the impact cone 33 slides along the side of the adjacent energy storage ring 35. When the impact cone 33 is stressed, the spring 34 is pressed into the spring groove 32 to store elastic potential energy. When the impact cone 33 moves to the other side of the energy storage ring 35, the spring 34 pushes the impact cone 33 upward to impact the inner wall of the support cylinder 17, thereby causing vibration of the support cylinder 17 to facilitate the smooth passage of materials and prevent the support cylinder 17 from forming a blockage inside the material selection bin 7.

[0040] During use, the ore enters the inner cylinder 26 through the material selection bin 7 and the feed port 5. The control box 14 is used to control the start of the second motor 15. The outer shell 3 and the inner cylinder 26 are driven to rotate through the reduction gearbox 16 and the transmission gear 12. The ore and the grinding balls complete impact, extrusion, and crushing inside the inner cylinder 26. The mixing rod 21 is stationary relative to the ore and the grinding balls and plays a role in stirring the two, promoting full contact between the balls and the material, and enabling the ore to be broken more evenly and efficiently. The first motor 11 drives the screw rod 18 to rotate through the driven wheel 8, which can adjust the horizontal position of the telescopic rod 19, and then change the position of the mixing rod 21 inside the inner cylinder 26, facilitating the stirring of the ore in different grinding stages. The ground ore powder is discharged from the discharge port 4.

[0041] The slider 39 is fixed to the bottom of the closed ring 29. The closed ring 29 is connected to the support piece 25 that does not rotate during the ball milling process through the elastic cord 27. During one rotation of the inner cylinder 26, the slider 39 first rotates synchronously under the push of the inner wall at the tail of the C-shaped chute 28, and the elastic cord 27 is also stretched. At this time, the paddle 30 plays a conventional auxiliary mixing role. When the slider 39 reaches the highest point, its gravitational potential energy is converted into kinetic energy, and the elastic potential energy of the elastic cord 27 is also converted into kinetic energy, causing the slider 39 to accelerate and fall along the C-shaped chute 28. During this process, in addition to the mutual force between the ore and the grinding balls, the ore and the grinding balls will receive an additional accelerating turning shovel provided by the paddle 30. That is, without adding a driving device and energy, by storing the additional kinetic energy of the equipment as potential energy and releasing it during the ball milling process, the purpose of improving the crushing efficiency of the ore can be achieved. The closed ring 29 fits against the inner wall of the inner cylinder 26 to prevent the ore and the grinding balls from entering the C-shaped chute 28 and interfering with the sliding of the slider 39. At the same time, the semi-circular structure of the C-shaped chute 28 causes the closed ring 29 and the slider 39 to only have a short-term friction with the inner wall of the inner cylinder 26 during the acceleration stage, greatly reducing the mutual wear between the components of the device. One end of the elastic cord 27 connected to the support piece 25 is rotatably connected to ensure that the torque generated by the rotation of the closed ring 29 can be released in time to prevent the elastic cord 27 from being twisted and broken during operation.

[0042] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

Claims

1. An apparatus for preparing ultrafine fluorite mineral powder, comprising a base (1), wherein two parallel fixed rings (2) are fixedly connected to the top of the base (1), and the same outer shell (3) is rotatably connected inside the two fixed rings (2). One end of the outer shell (3) is provided with a discharge port (4), and the other end of the outer shell (3) away from the discharge port (4) is provided with a feed port (5), characterized in that, The inner wall of the outer shell (3) is fixedly connected with an inner cylinder (26). The outer circumference of the outer shell (3) near one end of the discharge port (4) is fixedly connected with a transmission gear (12). The top of the base (1) is fixedly connected with a first driving mechanism, and the transmission gear (12) is in transmission connection with the power output end of the first driving mechanism. One end of the outer shell (3) near the feed port (5) is rotatably connected with a material selection bin (7). The outer wall of the bottom of the material selection bin (7) is fixedly connected with a support (6), and the support (6) is fixedly connected to the top of the base (1). The bottom of the material selection bin (7) is rotatably connected with a screw rod (18). One end of the screw rod (18) is fixedly connected with a driven wheel (8), and the driven wheel (8) is rotatably connected to the outer wall of the material selection bin (7). The inner wall of the bottom of the support (6) is fixedly connected with a second driving mechanism, and the driven wheel (8) is in transmission connection with the power output end of the second driving mechanism. The inner wall of the material selection bin (7) is fixedly connected with a support cylinder (17). An expansion rod (19) is slidably connected inside the support cylinder (17). A threaded groove is formed inside the expansion rod (19), and the screw rod (18) is threadedly connected to the threaded groove inside the expansion rod (19). The bottom of the end of the expansion rod (19) away from the material selection bin (7) is fixedly connected with a vertically arranged first connecting rod (20). The bottom of the first connecting rod (20) is fixedly connected with a horizontally arranged stirring rod (21). The stirring rod (21) is located inside the inner cylinder (26). A C-shaped sliding groove (28) is formed in the inner wall of the inner cylinder (26) on the side near the discharge port (4). A sliding block (39) is slidably connected inside the C-shaped sliding groove (28). The top of the sliding block (39) is fixedly connected with a sealing ring (29). The inner wall of the sealing ring (29) is fixedly connected with evenly distributed blades (30). One side of the outer wall of the support cylinder (17) is fixedly connected with a second connecting rod (24). The end of the second connecting rod (24) away from the support cylinder (17) is fixedly connected with a support piece (25). One side of the support piece (25) is rotatably connected with an elastic cord (27), and the end of the elastic cord (27) away from the support piece (25) is fixedly connected with the sealing ring (29).

2. The preparation device for an ultrafine fluorite mineral powder according to claim 1, wherein The outer circumference of the outer shell (3) is fixedly connected with a protective cover (13), and the transmission gear (12) is located inside the protective cover (13).

3. The preparation device of an ultrafine fluorite mineral powder according to claim 1, characterized in that, The first driving mechanism includes a control box (14), a second motor (15) and a reduction gearbox (16). The control box (14) is fixedly connected to the top of the base (1). The second motor (15) is fixedly connected to the top of the control box (14). The reduction gearbox (16) is in transmission connection with the output end of the second motor (15). The transmission gear (12) is in transmission connection with the output end of the reduction gearbox (16). The second motor (15) is electrically connected to the control box (14).

4. The preparation device of an ultrafine fluorite mineral powder according to claim 1, characterized in that, The second driving mechanism includes a first motor (11), a driving wheel (10) and a transmission belt (9). The first motor (11) is fixedly connected to the inner wall of the bottom of the support (6). The driving wheel (10) is in transmission connection with the output end of the first motor (11). The transmission belt (9) is clamped in the wheel grooves of the driving wheel (10) and the driven wheel (8).

5. The preparation device of an ultrafine fluorite mineral powder according to claim 1, characterized in that, An insertion rod (23) is fixedly connected to the outer wall of the bottom of the support cylinder (17). A cavity is formed inside the stirring rod (21). One end of the insertion rod (23) extends into the cavity of the stirring rod (21). A limiting piston (22) is fixedly connected to the end of the insertion rod (23) located inside the stirring rod (21). The limiting piston (22) is slidably connected to the inner wall of the cavity of the stirring rod (21).

6. The preparation device of an ultrafine fluorite mineral powder according to claim 1, characterized in that, Stirring teeth (38) evenly distributed are fixedly connected to the outer circumference of the outer wall of the stirring rod (21).

7. The preparation device of an ultrafine fluorite mineral powder according to claim 1, wherein A roller groove (36) is formed on one side of the support piece (25) close to the inner wall of the inner cylinder (26). Evenly distributed rollers (37) are rotatably connected to the inner wall of the roller groove (36). The outer wall of the roller (37) contacts the inner wall of the inner cylinder (26).

8. The preparation device of an ultra-fine fluorite mineral powder according to claim 1, characterized in that, The body of the paddle (30) is provided with evenly distributed mesh holes (31).

9. The preparation device of an ultra-fine fluorite mineral powder according to claim 1, characterized in that, Energy storage rings (35) evenly distributed are fixedly connected to the inner circumference of the inner wall of the support cylinder (17). Both sides of the energy storage ring (35) are provided with symmetrically distributed inclined surfaces.

10. The preparation device of an ultrafine fluorite mineral powder according to claim 9, characterized in that, A spring groove (32) is fixedly connected to the outer wall of the top of the telescopic rod (19). A spring (34) is fixedly connected inside the spring groove (32). The top of the spring (34) is fixedly connected to an impact cone (33). The top of the impact cone (33) contacts the inner wall of the support cylinder (17).

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