Screening equipment for ammonium bifluoride production

Abstract

The utility model belongs to the technical field of ammonium bifluoride processing, and particularly relates to screening equipment for ammonium bifluoride production, which comprises a mounting frame, a mounting barrel is fixedly connected to the top of the mounting frame, a screen drum is arranged in the mounting barrel, and a fine material port is fixedly connected to the outside of the mounting barrel. The centrifugal pump drives the screen drum to rotate, ammonium bifluoride continuously centrifugally moves from right to left in the screen drum, ammonium bifluoride crystals are thrown out of the screen holes and separated out of the fine material opening, and coarse materials are screened to the coarse material opening from the screen drum to fall off, so that screening and falling of the coarse and fine crystals of the ammonium bifluoride are realized; the problems that a traditional vibrating screen is easy to block and frequent to clean when encountering large particles are solved, a screen drum drives an arc-surface scraping plate to rotate, the arc-surface scraping plate makes contact with the inner wall of a mounting barrel, and therefore the arc-surface scraping plate continuously scrapes off ammonium bifluoride adhering to the inner wall of the mounting barrel, residual ammonium bifluoride is prevented from sublimating due to high temperature, and the service life of the mounting barrel is prolonged. The harm to workers and the pollution to the environment are caused.

Description

Technical Field

[0001] The utility model relates to the technical field of ammonium bifluoride processing, and specifically relates to a screening device for ammonium bifluoride production. Background Technique

[0002] Ammonium bifluoride is a corrosive chemical crystal. It is slightly soluble in alcohol and extremely soluble in cold water. After dissolving in water, the aqueous solution is strongly acidic and can dissolve glass. It is mainly used as a glass etching agent, disinfectant, surface treatment agent for silicon steel plates, etc. During the evaporation and crystallization process of ammonium bifluoride, affected by the environment and crystallization position, the crystal size of the crystallized ammonium bifluoride is uneven. In order to provide customers with ammonium bifluoride with uniform particle size, a screening device is usually used during production to screen ammonium bifluoride and filter out the ammonium bifluoride with coarse particles, so as to meet the requirements of customers.

[0003] The prior art has the following defects or problems: In the prior art, the publication number is: CN207566896U, a kind of ammonium bifluoride screening device, including a feeding hopper, and also includes a filtering sleeve, a first filter screen, a vibrator and a containing container. The discharge port of the feeding hopper is in a horn shape, and a diversion cover is arranged inside the discharge port of the feeding hopper. The diversion cover is hemispherical, the convex surface of the diversion cover faces the feeding port of the feeding hopper, several connecting columns are arranged on the convex surface of the diversion cover, the diversion cover is fixed on the inner wall of the feeding hopper through the connecting columns, and there is a gap between the convex surface of the diversion cover and the inner wall of the feeding hopper. The filtering sleeve is arranged below the discharge port of the feeding hopper, the first filter screen is arranged inside the filtering sleeve, the vibrator is fixed on the inner wall of the filtering sleeve and is connected to the bottom of the first filter screen. The vibrator is located below the diversion cover, and the containing container is located below the filtering sleeve.

[0004] During the use of the above device, it can automatically filter ammonium bifluoride, reduce the labor intensity of workers, and improve the screening efficiency of ammonium bifluoride.

[0005] In the above content, during the actual use process, it is impossible to clean the attached ammonium bifluoride while screening ammonium bifluoride. And when encountering ammonium bifluoride with larger crystals, it is easy to block the filter holes and the cleaning is relatively frequent. Therefore, it is necessary to propose a screening device for ammonium bifluoride production.

[0006] It should be noted that the above content belongs to the technical cognitive scope of the inventor and does not necessarily constitute the prior art. Utility Model Content

[0007] Aiming at the deficiencies of the prior art, the utility model provides a screening device for ammonium bifluoride production, which solves the existing problems.

[0008] To achieve the above object, the present utility model provides the following technical solutions: A screening device for ammonium bifluoride production, including a mounting frame, a mounting barrel is fixedly connected to the top of the mounting frame, a screening cylinder is arranged inside the mounting barrel, a fine material port is fixedly connected to the outside of the mounting barrel, a coarse material port is fixedly connected to the outside of the mounting barrel, a mounting platform is fixedly connected to the top of the mounting frame, a horizontal pipe is fixedly connected to the top of the mounting platform, the horizontal pipe is arranged with one end open and the other end closed, the open end of the horizontal pipe penetrates through the mounting barrel and extends into the inside of the screening cylinder, and a feed port is fixedly connected to the inside of the horizontal pipe.

[0009] As a preferred technical solution of the present utility model, a centrifugal pump is installed on the top of the mounting platform, the output end of the centrifugal pump is fixedly connected to a transmission shaft, the transmission shaft penetrates through the horizontal pipe and extends into the inside of the screening cylinder, and an auger is fixedly connected to the outside of the transmission shaft, and the auger is located inside the horizontal pipe.

[0010] As a preferred technical solution of the present utility model, L-shaped connecting rods are fixedly connected in a circular array at one end of the transmission shaft away from the centrifugal pump, and the other end of each L-shaped connecting rod is fixedly connected to the inner wall of the screening cylinder.

[0011] As a preferred technical solution of the present utility model, a cross-shaped fixing frame is fixedly connected to the inside of the screening cylinder away from the L-shaped connecting rod, a rotating shaft is fixedly connected to the outside of the cross-shaped fixing frame, and the other end of the rotating shaft is rotatably connected to the mounting barrel.

[0012] As a preferred technical solution of the present utility model, connecting plates are symmetrically and fixedly connected to the outside of the screening cylinder, arc-shaped scraping plates are fixedly connected to the outside of every two connecting plates, and the outer surface of each arc-shaped scraping plate is in contact with the inner wall of the mounting barrel.

[0013] As a preferred technical solution of the present utility model, a fine material groove for cooperating with the fine material port is opened inside the mounting barrel, and a coarse material groove for cooperating with the coarse material port is opened inside the mounting barrel.

[0014] As a preferred technical solution of the present utility model, inner arc plates for cooperating with the mounting barrel are symmetrically and fixedly connected to the top of the mounting frame, and an embedding groove for cooperating with the fine material port is opened inside the mounting frame.

[0015] Compared with the prior art, the present utility model provides a screening device for ammonium bifluoride production, and has the following beneficial effects:

[0016] 1. A screening device for ammonium bifluoride production. By setting up an installation barrel, a screening cylinder, a fine material outlet, a coarse material outlet, a centrifugal pump, and a screw conveyor, the centrifugal pump drives the transmission shaft to rotate, the transmission shaft drives the L-shaped connecting rod to rotate, and the L-shaped connecting rod drives the screening cylinder to rotate. Ammonium bifluoride is injected into the horizontal pipe from the feed port. The transmission shaft drives the screw conveyor to rotate, and the screw conveyor continuously transports the ammonium bifluoride in the horizontal pipe to the inside of the screening cylinder. The ammonium bifluoride continuously performs centrifugal motion from right to left in the screening cylinder. The ammonium bifluoride crystals are thrown out from the sieve holes and separated from the fine material outlet, while the coarse material is screened to the coarse material outlet in the screening cylinder and drops, realizing the screening and dropping of the fine and coarse crystals of ammonium bifluoride, replacing the traditional vibration screening method, and solving the problems that the traditional vibrating screen is prone to blockage when encountering large particles and requires frequent cleaning.

[0017] 2. The screening device for ammonium bifluoride production. By setting up a connecting plate and an arc-shaped scraping plate, the screening cylinder drives the connecting plate to rotate, and the connecting plate drives the arc-shaped scraping plate to rotate. The arc-shaped scraping plate contacts the inner wall of the installation barrel, so that the arc-shaped scraping plate continuously scrapes off the ammonium bifluoride adhering to the inner wall of the installation barrel, avoiding the sublimation of the remaining ammonium bifluoride due to high temperature, which may cause harm to workers and environmental pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0019] Figure 2 It is a schematic diagram of the internal structure of the installation barrel of the present utility model;

[0020] Figure 3 It is a schematic diagram of the connection structure of the screening cylinder of the present utility model;

[0021] Figure 4 It is a schematic diagram of the overall structure of the screening cylinder of the present utility model;

[0022] Figure 5 It is a schematic diagram of the connection structure of the installation frame of the present utility model.

[0023] In the figure: 1. Installation frame; 2. Installation barrel; 3. Screening cylinder; 4. Fine material outlet; 5. Coarse material outlet; 6. Installation table; 7. Horizontal pipe; 8. Feed port; 9. Centrifugal pump; 10. Transmission shaft; 11. Screw conveyor; 12. L-shaped connecting rod; 13. Cross fixing frame; 14. Rotating shaft; 15. Connecting plate; 16. Arc-shaped scraping plate; 17. Fine material groove; 18. Coarse material groove; 19. Inner arc plate; 20. Embedding groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] In order to more clearly understand the above-mentioned objects, features, and advantages of the present utility model, the following further describes the present utility model with reference to the drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0026] Embodiment 1

[0027] As Figures 1 - 5 shown, the present utility model provides a technical solution: a screening device for ammonium bifluoride production, including a mounting frame 1. A mounting barrel 2 is fixedly connected to the top of the mounting frame 1. A screening cylinder 3 is arranged inside the mounting barrel 2. A fine material port 4 is fixedly connected to the outside of the mounting barrel 2. A coarse material port 5 is fixedly connected to the outside of the mounting barrel 2. A mounting platform 6 is fixedly connected to the top of the mounting frame 1. A horizontal pipe 7 is fixedly connected to the top of the mounting platform 6. The horizontal pipe 7 is arranged with one end open and the other end closed. The open end of the horizontal pipe 7 penetrates through the mounting barrel 2 and extends into the inside of the screening cylinder 3. A feed port 8 is fixedly connected to the inside of the horizontal pipe 7. A centrifugal pump 9 is installed on the top of the mounting platform 6. The output end of the centrifugal pump 9 is fixedly connected to a transmission shaft 10. The transmission shaft 10 penetrates through the horizontal pipe 7 and extends into the inside of the screening cylinder 3. An auger 11 is fixedly connected to the outside of the transmission shaft 10, and the auger 11 is located inside the horizontal pipe 7. The end of the transmission shaft 10 away from the centrifugal pump 9 is fixedly connected with L-shaped connecting rods 12 in a circular arrangement. The other end of each L-shaped connecting rod 12 is fixedly connected to the inner wall of the screening cylinder 3. A cross-shaped fixing frame 13 is fixedly connected to the inside of the screening cylinder 3 away from the L-shaped connecting rods 12. A rotating shaft 14 is fixedly connected to the outside of the cross-shaped fixing frame 13. The other end of the rotating shaft 14 is rotatably connected to the mounting barrel 2.

[0028] In this embodiment, the centrifugal pump 9 drives the transmission shaft 10 to rotate. When the transmission shaft 10 rotates, it drives the L-shaped connecting rods 12 to rotate. When the L-shaped connecting rods 12 rotate, they drive the screening cylinder 3 to rotate. When the screening cylinder 3 rotates, it drives the cross-shaped fixing frame 13 to rotate. When the cross-shaped fixing frame 13 rotates, it drives the rotating shaft 14 to rotate, so that the screening cylinder 3 performs a centrifugal motion inside the mounting barrel 2. At this time, ammonium bifluoride is injected into the horizontal pipe 7 from the feed port 8. When the transmission shaft 10 rotates, it drives the auger 11 to rotate. The auger 11 continuously conveys the ammonium bifluoride in the horizontal pipe 7 into the inside of the screening cylinder 3. The ammonium bifluoride continuously performs a centrifugal motion from right to left in the screening cylinder 3. The ammonium bifluoride crystals are thrown out from the sieve holes and enter the fine material port 4 from the fine material groove 17 to be separated. The coarse materials are screened into the coarse material groove 18 in the screening cylinder 3 and then fall from the coarse material port 5, replacing the traditional vibration screening method, solving the problems that the traditional vibrating screen is easy to be blocked when encountering large particles and needs to be cleaned frequently, and at the same time, performing the screening and dropping of coarse and fine crystals.

[0029] Embodiment 2

[0030] As shown Figures 1 - 5 in the figure, connecting plates 15 are symmetrically and fixedly connected to the outside of the sieve cylinder 3. Arc-shaped scraping plates 16 are fixedly connected to the outside of every two connecting plates 15. The outer surface of each arc-shaped scraping plate 16 is in contact with the inner wall of the mounting barrel 2. A fine material groove 17 for cooperating with the fine material port 4 is formed inside the mounting barrel 2. A coarse material groove 18 for cooperating with the coarse material port 5 is formed inside the mounting barrel 2. Inner arc plates 19 for cooperating with the mounting barrel 2 are symmetrically and fixedly connected to the top of the mounting frame 1. An embedding groove 20 for cooperating with the fine material port 4 is formed inside the mounting frame 1.

[0031] In this embodiment, when the sieve cylinder 3 rotates, it drives the connecting plate 15 to rotate. When the connecting plate 15 rotates, it drives the arc-shaped scraping plate 16 to rotate. The arc-shaped scraping plate 16 is in contact with the inner wall of the mounting barrel 2, so that the arc-shaped scraping plate 16 continuously scrapes off the ammonium bifluoride adhered to the inner wall of the mounting barrel 2, avoiding the sublimation of the remaining ammonium bifluoride due to high temperature, which may cause environmental pollution or harm to workers. The two inner arc plates 19 are used to limit the position of the mounting barrel 2 to prevent it from shaking. The embedding groove 20 can facilitate the installation of the fine material port 4.

[0032] Working principle of this embodiment: When in use, start the centrifugal pump 9. The centrifugal pump 9 drives the transmission shaft 10 to rotate. When the transmission shaft 10 rotates, it drives the L-shaped connecting rod 12 to rotate. When the L-shaped connecting rod 12 rotates, it drives the sieve cylinder 3 to rotate. When the sieve cylinder 3 rotates, it drives the cross-shaped fixing frame 13 to rotate. When the cross-shaped fixing frame 13 rotates, it drives the rotating shaft 14 to rotate, so that the sieve cylinder 3 performs a centrifugal motion inside the mounting barrel 2. At this time, inject ammonium bifluoride into the horizontal pipe 7 from the feed port 8. When the transmission shaft 10 rotates, it drives the auger 11 to rotate. The auger 11 continuously conveys the ammonium bifluoride in the horizontal pipe 7 into the sieve cylinder 3. The ammonium bifluoride continuously performs a centrifugal motion from right to left in the sieve cylinder 3. The ammonium bifluoride crystals are thrown out from the sieve holes and are separated from the fine material port 4 through the fine material groove 17. The coarse materials are screened from the sieve cylinder 3 into the coarse material groove 18 and then fall from the coarse material port 5, replacing the traditional vibration screening method and solving the problems that the traditional vibrating screen is prone to blockage and needs frequent cleaning when encountering large particles. When the sieve cylinder 3 rotates, it drives the connecting plate 15 to rotate. When the connecting plate 15 rotates, it drives the arc-shaped scraping plate 16 to rotate. The arc-shaped scraping plate 16 is in contact with the inner wall of the mounting barrel 2, so that the arc-shaped scraping plate 16 continuously scrapes off the ammonium bifluoride adhered to the inner wall of the mounting barrel 2, avoiding the sublimation of the remaining ammonium bifluoride due to high temperature, which may cause environmental pollution or harm to workers.

[0033] The above are only the preferred embodiments of the present invention, and do not limit the present invention in other forms. Any person skilled in the art may use the technical content disclosed above to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims

1. A screening device for ammonium bifluoride production, characterized in that: It includes a mounting frame (1), at the top of the mounting frame (1) is fixedly connected with a mounting barrel (2), inside the mounting barrel (2) is provided with a screening barrel (3), on the outside of the mounting barrel (2) is fixedly connected with a fine material inlet (4), on the outside of the mounting barrel (2) is fixedly connected with a coarse material inlet (5), at the top of the mounting frame (1) is fixedly connected with a mounting table (6), on the top of the mounting table (6) is fixedly connected with a horizontal pipe (7), the horizontal pipe (7) is arranged with one end open and the other end closed, the open end of the horizontal pipe (7) penetrates through the mounting barrel (2) and extends into the interior of the screening barrel (3), and inside the horizontal pipe (7) is fixedly connected with a feed inlet (8).

2. The screening device for ammonium bifluoride production according to claim 1, characterized in that: On the top of the mounting table (6) is installed a centrifugal pump (9), the output end of the centrifugal pump (9) is fixedly connected with a transmission shaft (10), the transmission shaft (10) penetrates through the horizontal pipe (7) and extends into the interior of the screening barrel (3), and on the outside of the transmission shaft (10) is fixedly connected with an auger (11), and the auger (11) is located inside the horizontal pipe (7).

3. The screening device for ammonium bifluoride production according to claim 2, characterized in that: At the end of the transmission shaft (10) away from the centrifugal pump (9) are annularly fixedly connected with L-shaped connecting rods (12), and the other end of each L-shaped connecting rod (12) is fixedly connected with the inner wall of the screening barrel (3).

4. The screening device for ammonium bifluoride production according to claim 1, wherein: Inside the screening barrel (3) away from the L-shaped connecting rod (12) is fixedly connected with a cross-shaped fixing frame (13), on the outside of the cross-shaped fixing frame (13) is fixedly connected with a rotating shaft (14), and the other end of the rotating shaft (14) is rotatably connected with the mounting barrel (2).

5. The screening device for ammonium bifluoride production according to claim 1, characterized in that: On the outside of the screening barrel (3) are symmetrically fixedly connected with connecting plates (15), on the outside of every two connecting plates (15) are fixedly connected with arc-shaped scraping plates (16), and the outer surface of each arc-shaped scraping plate (16) is in contact with the inner wall of the mounting barrel (2).

6. The screening device for ammonium bifluoride production according to claim 1, characterized in that: Inside the mounting barrel (2) is opened a fine material groove (17) for use in cooperation with the fine material inlet (4), and inside the mounting barrel (2) is opened a coarse material groove (18) for use in cooperation with the coarse material inlet (5).

7. The screening device for ammonium bifluoride production according to claim 1, characterized in that: On the top of the mounting frame (1) are symmetrically fixedly connected with inner arc plates (19) for use in cooperation with the mounting barrel (2), and inside the mounting frame (1) is opened an embedding groove (20) for use in cooperation with the fine material inlet (4).

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