Feeding and conveying device for anhydrous hydrogen fluoride production

Abstract

The invention belongs to the technical field of anhydrous hydrogen fluoride production, and particularly relates to a feeding and conveying device for anhydrous hydrogen fluoride production. A discharging pipe is arranged at the bottom of the raw material box; the bottom of the raw material box is fixedly connected with a fixing frame; the end part of the discharging pipe is fixedly connected with a material conveying pipe; the end part of the material conveying pipe is fixedly connected with a motor; the output end of the motor penetrates through the end part of the conveying pipe; the output end of the motor is fixedly connected with a spiral blade; the spiral blade is mounted in the middle of the conveying pipe; a drying assembly, a screening assembly and an anti-blocking assembly are arranged in the middle of the raw material box; a cleaning assembly is mounted in the middle of the conveying pipe; a sealing assembly is mounted in the middle of the raw material box; by means of the structure, extra drying and screening treatment in the anhydrous hydrogen fluoride production raw material feeding and conveying process can be reduced, a large amount of energy consumption and time are effectively reduced, and therefore the problem that the production efficiency of anhydrous hydrogen fluoride is reduced in the whole production period is solved.

Description

Technical Field

[0001] The invention belongs to the technical field of anhydrous hydrogen fluoride production, in particular to a feeding and conveying device for anhydrous hydrogen fluoride production. Background Art

[0002] Anhydrous hydrogen fluoride is a colorless, transparent liquid or gas that is volatile, can quickly absorb moisture in the air and produce smoke, and is easily soluble in water to form hydrofluoric acid.

[0003] Anhydrous hydrogen fluoride mainly uses fluorite and sulfuric acid as raw materials. Fluorite and sulfuric acid react at high temperature to generate by-products such as anhydrous hydrogen fluoride and calcium sulfate. After multiple steps of purification, high-quality anhydrous hydrogen fluoride is obtained.

[0004] In the traditional anhydrous hydrogen fluoride production process, the anhydrous hydrogen fluoride raw materials usually need to be additionally dried and screened before being fed into the reactor, which increases the energy consumption and time cost in the production process of anhydrous hydrogen fluoride, easily leading to an extension of the production cycle and a decrease in production efficiency.

[0005] To this end, the present invention provides a feeding and conveying device for anhydrous hydrogen fluoride production. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problems is as follows: a feeding and conveying device for anhydrous hydrogen fluoride production described in the present invention comprises a raw material box; a discharge pipe is provided at the bottom of the raw material box; a fixing frame is fixedly connected to the bottom of the raw material box; a feeding pipe is fixedly connected to the end of the discharge pipe; a motor is fixedly connected to the end of the feeding pipe; the output end of the motor passes through the end of the feeding pipe; a spiral blade is fixedly connected to the output end of the motor; the spiral blade is installed in the middle of the feeding pipe; a drying component, a screening component and an anti-blocking component are provided in the middle of the raw material box; a cleaning component is installed in the middle of the feeding pipe; a sealing component is installed in the middle of the raw material box; the above structure can reduce the additional drying and screening treatment during the feeding and conveying process of the raw materials for anhydrous hydrogen fluoride production, effectively reduce a large amount of energy consumption and time, thereby reducing the problem of reduced anhydrous hydrogen fluoride production efficiency during the entire production cycle.

[0008] Preferably, the drying component includes two guide plates; the two guide plates are fixedly connected to the inner wall of the raw material box; the two guide plates are arranged obliquely and oppositely; the outer wall of the raw material box is fixedly connected to two first drivers; the output end of the first driver passes through the middle of the raw material box; the output end of the first driver is fixedly connected to a drying cylinder; the inner wall of the drying cylinder is installed with a heating wire; the above structure effectively removes moisture from the raw material, can evenly dry the raw material, reduce the interference of moisture in the raw material on the reaction process, and can be more fully contacted with the reactants during the transportation of the raw material, effectively increase the reaction speed of the raw material, thereby effectively improving the efficiency of anhydrous hydrogen fluoride production, reducing the purity reduction caused by moisture and other volatile impurities, and can make the raw material looser during the drying process, so that the raw material can be more easily transported and mixed. At the same time, the dried raw material reduces the flying of dust during the transportation process, thereby reducing the harm caused by dust during the transportation process.

[0009] Preferably, the screening assembly includes multiple fixed blocks; multiple fixed blocks are fixedly connected to the inner wall of the raw material box; a sliding rod is slidably connected to the middle of the fixed block; multiple ends of the sliding rods are fixedly connected to a screen plate; a spring is fixedly connected to the bottom of the fixed block; the end of the spring is fixedly connected to the middle of the screen plate; a second driver is fixedly connected to the outer wall of the raw material box; the output end of the second driver passes through the middle of the raw material box; the output end of the second driver is fixedly connected to a rotating shaft; the rotating shaft is arranged at the bottom of the screen plate; the end of the rotating shaft is fixedly connected to a cam; through the above structure, screening can be carried out during the raw material transportation process, and large impurities and foreign particles in the raw materials can be effectively removed through screening, and the screen plate can be vibrated by the cam, which can effectively reduce the blockage in the screen plate during the screening process of the raw materials, reduce the poor flow of raw materials due to blockage in the middle of the screen plate, reduce the problem of interruption in the transportation process, and screen out raw materials with uniform particle size through vibration screening, thereby improving the reaction efficiency and quality.

[0010] Preferably, the anti-blocking component includes two fixed rods; the two fixed rods are fixedly connected to the inner side wall of the discharge pipe; the middle part of the fixed rods is rotatably connected to a rotating seat; the middle part of the two rotating seats is fixedly connected to a rotating rod; one end of the rotating rod is fixedly connected to a paddle ball; the other end of the rotating rod is fixedly connected to a paddle plate; the paddle plate that continuously swings through the above structure can continuously push the accumulated raw materials in the middle part of the discharge pipe, making the raw materials looser and able to flow out of the discharge pipe smoothly, effectively reducing the blockage of the raw materials passing through the discharge pipe, thereby improving the discharge efficiency of the raw materials, keeping the raw materials able to continue to flow smoothly, and effectively reducing the accumulation of materials during the transportation process.

[0011] Preferably, the cleaning assembly includes multiple elastic rods; multiple of the elastic rods are fixedly connected to the inner wall of the feed pipe; multiple ends of the elastic rods are fixedly connected to connecting rods; the middle of the connecting rod is fixedly connected to a brush; through the above structure, the brush fits tightly on the surface of the spiral blade, which can effectively clean the attachments on the surface of the spiral blade during the process of conveying raw materials, reduce the long-term accumulation and clogging of raw materials on the surface of the spiral blade, and cleaning the surface of the brush can reduce the friction between the spiral blade and the raw material, effectively reducing production interruptions and wear caused by long-term friction of the raw material during the transportation process.

[0012] Preferably, the sealing assembly includes two articulated seats; the two articulated seats are arranged on the inner wall of the raw material box; the two articulated seats are arranged opposite to each other; a baffle is installed in the middle of the articulated seat; a torsion spring is provided at the connection between the articulated seat and the baffle; a sealing strip is fixed to the end of the baffle; through the above structure, the articulated seat can fit tightly after the raw material is put in, seal the top of the raw material box, reduce gas leakage during the transportation of the raw material inside the raw material box, reduce energy loss caused by gas leakage, and thus reduce energy consumption in the production process.

[0013] The beneficial effects of the present invention are as follows:

[0014] 1. The feeding and conveying device for anhydrous hydrogen fluoride production described in the present invention can reduce the additional drying and screening treatment during the feeding and conveying process of the raw materials for anhydrous hydrogen fluoride production through the above structure, effectively reducing a large amount of energy consumption and time, thereby reducing the problem of reduced anhydrous hydrogen fluoride production efficiency during the entire production cycle.

[0015] 2. The feeding and conveying device for anhydrous hydrogen fluoride production described in the present invention can effectively remove moisture from the raw materials through the above structure, can evenly dry the raw materials, reduce the interference of moisture in the raw materials on the reaction process, and can be more fully contacted with the reactants during the raw material conveying process, effectively increase the speed of the raw material reaction, thereby effectively improving the efficiency of anhydrous hydrogen fluoride production and reducing the purity reduction caused by moisture and other volatile impurities. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below in conjunction with the accompanying drawings.

[0017] Figure 1 is a stereogram of the present invention;

[0018] Figure 2 is a cross-sectional view of the present invention;

[0019] Figure 3 It is a schematic diagram of the structure of the screening assembly in the present invention;

[0020] Figure 4 It is a structural schematic diagram of the anti-blocking component in the present invention;

[0021] Figure 5 It is a structural schematic diagram of the cleaning component in the present invention.

[0022] In the figure: 1. raw material box; 10. discharge pipe; 11. fixed frame; 12. motor; 13. feed pipe; 14. spiral blade; 2. drying component; 21. guide plate; 22. first drive; 23. drying cylinder; 24. heating wire; 3. screening component; 31. fixed block; 32. slide rod; 33. spring; 34. screen plate; 35. second drive; 36. rotating shaft; 37. cam; 4. anti-blocking component; 41. fixed rod; 42. rotating seat; 43. rotating rod; 44. paddle ball; 45. paddle plate; 5. cleaning component; 51. elastic rod; 52. connecting rod; 53. brush; 6. sealing component; 61. hinge seat; 62. torsion spring; 63. baffle; 64. sealing strip; 7. ball bearing. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0024] like Figures 1 to 5 As shown, a feeding and conveying device for anhydrous hydrogen fluoride production according to an embodiment of the present invention comprises a raw material box 1; a discharge pipe 10 is provided at the bottom of the raw material box 1; a fixing frame 11 is fixedly connected to the bottom of the raw material box 1; a feed pipe 13 is fixedly connected to the end of the discharge pipe 10; a motor 12 is fixedly connected to the end of the feed pipe 13; an output end of the motor 12 passes through the end of the feed pipe 13; a spiral blade 14 is fixedly connected to the output end of the motor 12; the spiral blade 14 is installed in the middle of the feed pipe 13; a drying component 2, a screening component 3 and an anti-blocking component 4 are provided in the middle of the raw material box 1; a cleaning component 5 is installed in the middle of the feed pipe 13; a sealing component 6 is installed in the middle of the raw material box 1; when working, the fluorite powder raw material is first The raw material is placed in the raw material box 1, and the raw material is dried by the drying component 2, and then the raw material is screened by the screening component 3. The screened raw material passes through the discharge pipe 10 and enters the inside of the conveying pipe 13. At the same time, the motor 12 is powered on and turned on, so that the output end of the motor 12 drives the spiral blade 14 to rotate, and the raw material is transported from one end of the conveying pipe 13 to the inside of the reactor for subsequent processing through the spiral blade 14. The above structure can reduce the additional drying and screening treatment during the feeding and transportation of the raw materials for the production of anhydrous hydrogen fluoride, effectively reduce a large amount of energy consumption and time, thereby reducing the problem of reduced anhydrous hydrogen fluoride production efficiency during the entire production cycle.

[0025] like Figure 2 and Figure 3As shown, the drying component 2 includes two guide plates 21; the two guide plates 21 are fixedly connected to the inner wall of the raw material box 1; the two guide plates 21 are arranged obliquely and oppositely; two first drivers 22 are fixedly connected to the outer wall of the raw material box 1; the output end of the first driver 22 passes through the middle of the raw material box 1; the output end of the first driver 22 is fixedly connected to the drying cylinder 23; the inner wall of the drying cylinder 23 is installed with a heating wire 24; when working, when the raw material is put into the raw material box 1, the raw material first falls on the two guide plates 21, and the raw material is guided into the two drying cylinders 23 through the two guide plates 21, and at the same time, the first driver 22 and the heating wire 24 are turned on, and the output end of the first driver 22 drives the drying cylinder 23 to rotate toward the middle, and the surface of the heating wire 24 generates heat, and the heat is transferred to the surface of the drying cylinder 23. The cylinder 23 drives the raw material to rotate toward the middle. When the raw material contacts the surface of the drying cylinder 23, the heat on the surface of the drying cylinder 23 absorbs moisture in the raw material, thereby drying the raw material. The raw material enters between the two drying cylinders 23 and enters the screening component 3 after being dried. The above structure can effectively remove moisture from the raw material, dry the raw material evenly, and reduce the interference of moisture in the raw material on the reaction process. During the transportation of the raw material, the drying can be more fully in contact with the reactants, effectively increasing the reaction speed of the raw material, thereby effectively improving the efficiency of anhydrous hydrogen fluoride production, reducing the purity caused by moisture and other volatile impurities, making the raw material looser during the drying process, making it easier to transport and mix the raw material, and drying the raw material at the same time.

[0026] like Figure 2 and Figure 3As shown, the screening assembly 3 includes a plurality of fixed blocks 31; the plurality of fixed blocks 31 are fixedly connected to the inner wall of the raw material box 1; a sliding rod 32 is slidably connected to the middle of the fixed block 31; the ends of the plurality of sliding rods 32 are fixedly connected to the sieve plate 34; a spring 33 is fixedly connected to the bottom of the fixed block 31; the end of the spring 33 is fixedly connected to the middle of the sieve plate 34; a second driver 35 is fixedly connected to the outer wall of the raw material box 1; the output end of the second driver 35 passes through the middle of the raw material box 1; the output end of the second driver 35 is fixedly connected to a rotating shaft 36; the rotating shaft 36 is arranged at the bottom of the sieve plate 34; a cam 37 is fixedly connected to the end of the rotating shaft 36; when working, the dried raw material first falls onto the sieve plate 34, and the second driver 35 is powered on and turned on, and the second driver 35 drives the rotating shaft 36 to rotate, and the cam 37 is rotated at the same time through the rotating shaft 36. When the cam 37 rotates, one end contacts the middle of the sieve plate 34 and applies pressure upward. During the rotation of the cam 37, the screen plate 34 is lifted up. When the screen plate 34 is subjected to pressure, multiple slide bars 32 slide in the middle of the fixed block 31, and the spring 33 produces elastic contraction. When the cam 37 rotates to the other end, the screen plate 34 that is not under pressure moves downward and resets through the spring 33. The raw material passes through the middle of the screen plate 34 and enters the discharge pipe 10. The raw material is screened by the screen plate 34. The above structure can be used for screening during the raw material transportation process. Large impurities and foreign particles in the raw material can be effectively removed through screening, and the screen plate 34 can be vibrated by the cam 37, which can effectively reduce the blockage in the screen plate 34 during the raw material screening process, reduce the poor circulation of raw materials due to blockage in the middle of the screen plate 34, and reduce the problem of interruption in the transportation process. Raw materials with uniform particle size can be screened out through vibration screening, thereby improving the reaction efficiency and quality.

[0027] like Figure 2 and Figure 4 As shown, the anti-blocking assembly 4 includes two fixed rods 41; the two fixed rods 41 are fixedly connected to the inner wall of the discharge pipe 10; the middle of the fixed rods 41 is rotatably connected to a rotating seat 42; the middle of the two rotating seats 42 is fixedly connected to a rotating rod 43; one end of the rotating rod 43 is fixedly connected to a dial ball 44; the other end of the rotating rod 43 is fixedly connected to a dial plate 45; during operation, when the raw material is conveyed through the middle of the discharge pipe 10, the spiral blade 14 is driven by the motor 12 to rotate, and the spiral blade 14 contacts the dial ball 44, and the dial ball 44 is driven to make the rotating rod 43 rotate. The ends of the two fixed rods 41 rotate, and at the same time, the rotating rod 43 drives the paddle plate 45 to swing, so that the raw materials accumulated in the middle of the discharge pipe 10 are dredged through the paddle plate 45. The paddle plate 45 that continuously swings through the above structure can continuously push the accumulated raw materials in the middle of the discharge pipe 10, making the raw materials looser and able to flow out of the discharge pipe 10 smoothly, effectively reducing the blockage of the raw materials passing through the discharge pipe 10, thereby improving the discharge efficiency of the raw materials, keeping the raw materials able to continue to flow smoothly, and effectively reducing the accumulation of materials during the transportation process.

[0028] like Figure 2 and Figure 5 As shown, the cleaning assembly 5 includes a plurality of elastic rods 51; the plurality of elastic rods 51 are fixedly connected to the inner wall of the feed pipe 13; the ends of the plurality of elastic rods 51 are fixedly connected to connecting rods 52; the middle part of the connecting rod 52 is fixedly connected to a brush 53; when working, the brush 53 fits tightly against the surface of the spiral blade 14, and when the spiral blade 14 conveys the raw materials, the raw materials attached to the surface of the spiral blade 14 are cleared by the brush 53, and at the same time, the elastic rod 51 is elastically bent during the contact between the spiral blade 14 and the connecting rod 52, and the raw materials cleaned by the brush 53 are dropped back into the spiral blade 14 for conveyance through the elastic rod 51. Through the above structure, the brush 53 fits tightly against the surface of the spiral blade 14, and can effectively clean the attachments on the surface of the spiral blade 14 during the process of conveying the raw materials, and reduce the long-term accumulation and blockage of the raw materials on the surface of the spiral blade 14. Cleaning the surface of the brush 53 can reduce the friction between the spiral blade 14 and the raw materials, and effectively reduce the production interruption and wear caused by the long-term friction of the raw materials during the conveying process.

[0029] like Figures 1 to 3 As shown, the sealing assembly 6 includes two hinged seats 61; the two hinged seats 61 are arranged on the inner side wall of the raw material box 1; the two hinged seats 61 are arranged opposite to each other; a baffle 63 is installed in the middle of the hinged seat 61; a torsion spring 62 is provided at the connection between the hinged seat 61 and the baffle 63; a sealing strip 64 is fixed to the end of the baffle 63; when working, the two sealing strips 64 fit tightly, and when the raw material is placed inside the raw material box 1, after the raw material contacts the hinged seat 61, the weight of the raw material applies pressure to the hinged seat 61, causing the hinged seat 61 to rotate downward, and the two hinged seats 6 1, the raw material enters the drying assembly 2 through the two hinge seats 61. After the raw material enters, the hinge seat 61 which is not under pressure is reset by the torsion spring 62, so that the two sealing strips 64 fit together, and the top of the raw material box 1 is sealed by the two hinge seats 61. With the above structure, the hinge seat 61 can fit tightly after the raw material is put in, and the top of the raw material box 1 is sealed, so as to reduce gas leakage during the transportation of the raw material inside the raw material box 1, reduce the energy loss caused by gas leakage, and thus reduce the energy consumption in the production process.

[0030] like Figure 3 As shown, a plurality of balls 7 are installed in the middle of the cam 37; the plurality of balls 7 are rotatably connected to the middle of the cam 37; during operation, when the cam 37 lifts the screen plate 34, the balls 7 rotate while contacting the screen plate 34 during the rotation of the cam 37. The above structure can effectively reduce the friction caused by the direct contact between the cam 37 and the screen plate 34, and reduce the wear caused by the long-term contact between the cam 37 and the screen plate 34.

[0031] During operation, the fluorite powder raw material is first placed in the raw material box 1, the raw material is dried by the drying component 2, and then the raw material is screened by the screening component 3. The screened raw material passes through the discharge pipe 10 and enters the inside of the conveying pipe 13. At the same time, the motor 12 is powered on and turned on, so that the output end of the motor 12 drives the spiral blade 14 to rotate, and the raw material is transported from one end of the conveying pipe 13 to the inside of the reactor for subsequent processing through the spiral blade 14. After the raw material is placed in the raw material box 1, the raw material first falls on the two guide plates 21, and the raw material is guided into the two drying cylinders 23 through the two guide plates 21. At the same time, the first driver 22 and the heating wire 24 are turned on, and the output end of the first driver 22 drives the drying cylinder 23 to rotate toward the middle, and the surface of the heating wire 24 generates heat. The heat is transferred to the surface of the drying cylinder 23. The two drying cylinders 23 drive the raw material to rotate toward the middle. When the raw material contacts the surface of the drying cylinder 23, the heat on the surface of the drying cylinder 23 absorbs moisture in the raw material, thereby drying the raw material. After entering between the two drying cylinders 23, the raw material enters the screening component 3 and is dried. The dried raw material first falls onto the sieve plate 34. The second driver 35 is powered on and turned on. The second driver 35 drives the rotating shaft 36 to rotate, and the cam 37 is rotated at the same time through the rotating shaft 36. When the cam 37 rotates, one end contacts the middle of the sieve plate 34 and applies pressure upward. During the rotation of the cam 37, the sieve plate 34 is lifted up. When the sieve plate 34 is under pressure, multiple sliding rods 32 slide in the middle of the fixed block 31, and at the same time When the cam 37 rotates to the other end, the sieve plate 34 that is not under pressure moves downward and resets through the spring 33, and the raw material passes through the middle of the sieve plate 34 and enters the discharge pipe 10, and the raw material is screened by the sieve plate 34. When the raw material passes through the middle of the discharge pipe 10 for transportation, the spiral blade 14 is driven by the motor 12 to rotate, and the spiral blade 14 contacts the paddle ball 44, and the paddle ball 44 is driven to make the rotating rod 43 rotate at the ends of the two fixed rods 41, and at the same time, the rotating rod 43 drives the paddle plate 45 to swing, so that the raw material accumulated in the middle of the discharge pipe 10 is dredged through the paddle plate 45, and the brush 53 is in close contact with the surface of the spiral blade 14. When the spiral blade 14 is transporting the raw material, the spiral blade 14 is brushed by the brush 53. 14, the raw materials attached to the surface are removed, and the elastic rod 51 is elastically bent during the contact between the spiral blade 14 and the connecting rod 52, so that the raw materials cleaned by the brush 53 fall back into the spiral blade 14 for transportation through the elastic rod 51, and the two sealing strips 64 fit tightly. When the raw materials are placed inside the raw material box 1, after the raw materials contact the hinge seat 61, the weight of the raw materials presses the hinge seat 61, so that the hinge seat 61 rotates downward, and the ends of the two hinge seats 61 are separated, and the raw materials enter the drying component 2 through the two hinge seats 61. After the raw materials enter, the hinge seat 61 that is not under pressure is reset by the torsion spring 62, so that the two sealing strips 64 fit together, and the top of the raw material box 1 is sealed through the two hinge seats 61. When the cam 37 lifts the screen plate 34,During the rotation of the cam 37, the ball 7 rotates while in contact with the screen plate 34.

[0032] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A feeding and conveying device for anhydrous hydrogen fluoride production, comprising a raw material box (1); characterized in that: The bottom of the raw material box (1) is provided with a discharge pipe (10); the bottom of the raw material box (1) is fixedly connected to a fixing frame (11); the end of the discharge pipe (10) is fixedly connected to a feed pipe (13); the end of the feed pipe (13) is fixedly connected to a motor (12); the output end of the motor (12) passes through the end of the feed pipe (13); the output end of the motor (12) is fixedly connected to a spiral blade (14); the spiral blade (14) is installed in the middle of the feed pipe (13); the middle of the raw material box (1) is provided with a drying component (2), a screening component (3) and an anti-blocking component (4); the middle of the feed pipe (13) is installed with a cleaning component (5); the middle of the raw material box (1) is installed with a sealing component (6).

2. A feeding and conveying device for anhydrous hydrogen fluoride production according to claim 1, characterized in that: The drying component (2) comprises two guide plates (21); the two guide plates (21) are fixedly connected to the inner wall of the raw material box (1); the two guide plates (21) are arranged obliquely and oppositely; the outer wall of the raw material box (1) is fixedly connected to two first drivers (22); the output end of the first driver (22) passes through the middle of the raw material box (1); the output end of the first driver (22) is fixedly connected to a drying cylinder (23); and the inner wall of the drying cylinder (23) is equipped with a heating wire (24).

3. The feeding and conveying device for anhydrous hydrogen fluoride production according to claim 1, characterized in that: The screening assembly (3) comprises a plurality of fixed blocks (31); the plurality of fixed blocks (31) are fixedly connected to the inner wall of the raw material box (1); a sliding rod (32) is slidably connected to the middle of the fixed block (31); the ends of the plurality of sliding rods (32) are fixedly connected to a screen plate (34); a spring (33) is fixedly connected to the bottom of the fixed block (31); the end of the spring (33) is fixedly connected to the middle of the screen plate (34); a second driver (35) is fixedly connected to the outer wall of the raw material box (1); the output end of the second driver (35) passes through the middle of the raw material box (1); the output end of the second driver (35) is fixedly connected to a rotating shaft (36); the rotating shaft (36) is arranged at the bottom of the screen plate (34); the end of the rotating shaft (36) is fixedly connected to a cam (37).

4. The feeding and conveying device for anhydrous hydrogen fluoride production according to claim 1, characterized in that: The anti-blocking assembly (4) comprises two fixed rods (41); the two fixed rods (41) are fixedly connected to the inner wall of the discharge pipe (10); the middle part of the fixed rods (41) is rotatably connected to a rotating seat (42); the middle part of the two rotating seats (42) is fixedly connected to a rotating rod (43); one end of the rotating rod (43) is fixedly connected to a shifting ball (44); the other end of the rotating rod (43) is fixedly connected to a shifting plate (45).

5. The feeding and conveying device for anhydrous hydrogen fluoride production according to claim 1, characterized in that: The cleaning assembly (5) comprises a plurality of elastic rods (51); the plurality of elastic rods (51) are fixedly connected to the inner wall of the feed pipe (13); the ends of the plurality of elastic rods (51) are fixedly connected to connecting rods (52); and the middle of the connecting rods (52) is fixedly connected to a brush (53).

6. The feeding and conveying device for anhydrous hydrogen fluoride production according to claim 1, characterized in that: The sealing assembly (6) comprises two hinged seats (61); the two hinged seats (61) are arranged on the inner wall of the raw material box (1); the two hinged seats (61) are arranged opposite to each other; a baffle (63) is installed in the middle of the hinged seat (61); a torsion spring (62) is provided at the connection between the hinged seat (61) and the baffle (63); and a sealing strip (64) is fixed to the end of the baffle (63).

7. The feeding and conveying device for anhydrous hydrogen fluoride production according to claim 3, characterized in that: A plurality of balls (7) are installed in the middle of the cam (37); the plurality of balls (7) are rotatably connected to the middle of the cam (37).

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