Conveying device for fluorine-containing liquid crystal intermediate processing

Abstract

The invention provides a conveying device for processing fluorine-containing liquid crystal intermediates, and relates to the technical field of fluorine-containing liquid crystal intermediate.The conveying device comprises a bottom plate, the upper surface of the bottom plate is fixedly connected with a sealing box, a conveying assembly is arranged in the sealing box, the two sides of the sealing box communicate with conveying pipes, and the conveying pipes communicate with the conveying assembly; a cleaning assembly is installed in the sealing box and used for cleaning the conveying assembly, and the conveying assembly comprises two arc-shaped plates. The sealing box and the arc-shaped plates are arranged, the cleaning assembly is arranged in the sealing box, the arc-shaped plates are opposite to form a pipeline on the outer side of the spiral conveying blade, in the cleaning process, the two arc-shaped plates are separated, the spiral conveying blade inside is exposed, the spiral conveying blade is cleaned through the cleaning assembly, disassembly is not needed, and operation is more convenient; meanwhile, the whole process is carried out in the sealing box, so that the safety of workers is prevented from being influenced by volatilization of residual materials.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of fluorine-containing liquid crystal intermediate conveying, and particularly relates to a conveying device for fluorine-containing liquid crystal intermediate processing. BACKGROUND

[0002] Fluorine-containing liquid crystal intermediates are a class of organic liquid crystal materials containing fluorine atoms (F) and are widely used in liquid crystal display (LCD), flexible electronics, photoelectric sensors and other fields. The quality and performance of fluorine-containing liquid crystal intermediates directly affect the quality and performance of the final fluorine-containing liquid crystal materials. Through the structural design and synthesis optimization of intermediates, the various properties of fluorine-containing liquid crystal materials can be controlled to meet the needs of different application scenarios. Fluorine-containing liquid crystal intermediates are key raw materials for synthesizing high-end liquid crystal materials. They usually have strong corrosive properties, certain toxicity (for some varieties), and extremely high purity requirements (to avoid impurities affecting the final liquid crystal performance). For low-viscosity powders, granular or crystalline fluorine-containing intermediates (such as p-fluorocinnamic acid crystals and 2,3,4-trifluoroaniline crystals), short-distance conveying is usually carried out using special screw conveyors. The components in direct contact with the material (screw blades, troughs, shafts, and inlet and outlet ports) must be made of materials resistant to fluoride corrosion, with low solubility and low adsorption to prevent metal ion contamination or equipment corrosion, and must be sealed.

[0003] When using a screw conveyor to transport fluorine-containing liquid crystal intermediates, some fluorine-containing intermediates (such as p-fluorocinnamic acid, which is prone to moisture absorption and caking when the humidity is greater than 60%, or molten intermediates after cooling) have a certain viscosity and are easily adhered to the surface of the blade. During the conveying process, residual material can easily cause cross-contamination between batches (affecting purity), and even cause equipment corrosion due to long-term retention of residual material. When cleaning, the pipeline needs to be disassembled and the equipment needs to be opened, and the material is toxic and volatile, which can easily affect the cleaning personnel. SUMMARY

[0004] To solve the above problems, the present application provides a conveying device for fluorine-containing liquid crystal intermediate processing to more accurately solve the above-mentioned problems.

[0005] The present application is realized by the following technical solutions: The application provides a conveying device for processing fluorine-containing liquid crystal intermediates, which comprises a bottom plate, a sealing box fixedly connected to the upper surface of the bottom plate, a conveying assembly arranged in the sealing box, two conveying pipes in communication with the two sides of the sealing box, the conveying pipes in communication with the conveying assembly, a cleaning assembly installed in the sealing box and used for cleaning the conveying assembly, the conveying assembly comprising two arc-shaped plates, a first servo motor installed on the bottom plate, a rotating shaft fixedly connected to the main shaft of the first servo motor, helical conveying blades fixedly connected to the outer side of the rotating shaft, the rotating shaft penetrating through the conveying pipes and being rotationally connected with the conveying pipes, and the helical conveying blades being located between the two arc-shaped plates.

[0006] In one example, a sealing element is arranged between the two arc-shaped plates.

[0007] In one example, two fixed plates are fixedly connected to the inner wall of the sealing box, sliding rods are slidingly connected to the two fixed plates, and the two sliding rods are fixed with the two arc-shaped plates and penetrate through the fixed plates.

[0008] In one example, vertical plates are fixedly connected to the two sliding rods, and springs are fixedly connected between the vertical plates and the fixed plates.

[0009] In one example, a mounting bracket is fixedly connected to the inner wall of the sealing box, a second servo motor is fixedly connected to the lower surface of the mounting bracket, a gear is fixedly connected to the main shaft of the second servo motor, a rack is fixedly connected to the opposite side of each vertical plate, and the rack is in meshing connection with the gear.

[0010] In one example, the cleaning assembly comprises a sliding rail, the sliding rail is located in the sealing box and is in sliding connection with the sealing box, a sliding seat is slidingly connected to the sliding rail, a rotating seat is rotationally connected to the upper surface of the sliding seat, and a wiping roller is fixedly connected to the upper surface of the rotating seat.

[0011] In one example, one side of one of the vertical plates is fixedly connected with a vertical plate, one side of the vertical plate is fixedly connected with a mounting plate, the upper surface of the mounting plate is fixedly connected with a triangular block, and the lower surface of the sliding rail is fixedly connected with an arc-shaped block.

[0012] In one example, connecting pipes are installed on the two sides of the sealing box and are fixedly connected with the conveying pipes respectively, arc-shaped connecting grooves are arranged on the inner sides of the arc-shaped plates, and arc-shaped connecting plates are fixedly connected to one side of the connecting pipes.

[0013] In one example, a placing rack is fixedly connected to the upper surface of the sealing box, two gas storage tanks are installed on the placing rack, the lower surfaces of the gas storage tanks are in communication with gas pipes, the gas pipes penetrate through the sealing box, the two gas pipes are fixed with the arc-shaped plates, and the gas pipes penetrate through the arc-shaped plates.

[0014] The conveying device for processing fluorine-containing liquid crystal intermediates can bring the following beneficial effects. Firstly, by setting the arc-shaped plates, two arc-shaped plates are opposite, forming a pipeline outside the spiral conveying vane, at this time the pipeline formed by the arc-shaped plate is communicated with the conveying pipes on both sides, after long-term use, the surface of the spiral conveying vane is easy to leave residual materials, at this time the residual materials on the surface of the spiral conveying vane exist in the form of liquid film, at this time the spiral conveying vane needs to be cleaned, the control valve is installed on the conveying pipe, when cleaning, the control valve on the conveying pipe on both sides of the conveying assembly is closed, so that the sealing box is in a sealed and isolated state at this time, is not communicated with other pipelines, the two arc-shaped plates are separated, the spiral conveying vane inside is exposed, the spiral conveying vane is cleaned by the cleaning assembly, without disassembly, the operation is more convenient, at the same time, the whole process is carried out in the sealing box, avoiding the influence of the volatilization of the residual materials on the safety of the workers; Secondly, by setting the wiping roller, after the arc-shaped plates are separated, the sliding rail rises, the wiping roller is inserted between the spiral conveying vanes, then the first servo motor is started to make the spiral conveying vane rotate, when the spiral conveying vane rotates, the spiral surface contacts the wiping roller, with the rotation of the spiral conveying vane, the wiping roller is pushed to make the wiping roller slide along the sliding rail, when sliding, the contact position of the wiping roller and the spiral conveying vane changes constantly, which facilitates the wiping and cleaning of the spiral conveying vane by the wiping roller, then after the spiral surface on one side of the spiral conveying vane is cleaned, the first servo motor is reversed, the spiral surface on the other side contacts the wiping roller to wipe and clean the other side, thereby facilitating the double-sided cleaning of the spiral conveying vane, which is convenient to use; Thirdly, by setting the arc-shaped block and the triangular block, when the spiral conveying vane is cleaned, the arc-shaped plates are separated, when the arc-shaped plates are separated, the triangular block is pulled to move together, when the triangular block contacts the arc-shaped block, the arc-shaped block is pushed upward, thereby pushing the sliding rail upward, the height of the sliding rail is increased, the wiping roller is inserted between the spiral conveying vanes, then the wiping roller cleans the spiral conveying vane, the structure is compact, and it is more convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0015] The drawings described herein are used to provide further understanding of the present application, and form a part of the present application. The illustrative embodiments of the present application and their description serve to explain the present application without forming an improper limitation on the present application.

[0016] In the drawings: Figure 1 It is a structural schematic diagram of the present application.

[0017] Figure 2 It is a structural schematic diagram of the sealing box of the present application.

[0018] Figure 3 It is a structural schematic diagram of the gear rack of the present application.

[0019] Figure 4 It is a structural schematic diagram of the cleaning assembly of the present application.

[0020] Figure 5 Structure diagram of the spiral conveying blade of the application.

[0021] Figure 6 Structure diagram of the wiping roller of the application.

[0022] Figure 7 Structure diagram of the sectional structure of the sealing box of the application.

[0023] In the figure: 1, bottom plate; 2, sealing box; 3, conveying assembly; 31, arc plate; 32, first servo motor; 33, rotating shaft; 34, spiral conveying blade; 4, conveying pipe; 5, cleaning assembly; 51, sliding rail; 52, sliding seat; 53, rotating seat; 54, wiping roller; 6, fixed plate; 7, sliding rod; 8, vertical plate; 9, spring; 10, mounting frame; 11, rack; 12, gear; 13, vertical plate; 14, mounting plate; 15, triangular block; 16, arc block; 17, connecting pipe; 18, placing frame; 19, gas storage tank; 20, air pipe. DETAILED DESCRIPTION

[0024] In order to more clearly illustrate the overall concept of the application, the following will be described in detail with reference to the accompanying drawings.

[0025] As Figures 1-7As shown, an embodiment of the present invention proposes a conveying device for processing fluorine-containing liquid crystal intermediates, comprising a base plate 1, the upper surface of the base plate 1 is fixedly connected to a sealed box 2, a conveying assembly 3 is arranged in the sealed box 2, both sides of the sealed box 2 are connected to a conveying pipe 4, the conveying pipe 4 is connected to the conveying assembly 3, a cleaning assembly 5 is installed in the sealed box 2, the cleaning assembly 5 is used to clean the conveying assembly 3, the conveying assembly 3 comprises two arc-shaped plates 31, a first servo motor 32 is installed on the base plate 1, the main shaft of the first servo motor 32 is fixedly connected to a rotating shaft 33, a spiral conveying blade 34 is fixed on the outer side of the rotating shaft 33, the rotating shaft 33 passes through the conveying pipe 4 and is rotatably connected to the conveying pipe 33, the spiral conveying blade 34 is located between the two arc-shaped plates 31, the rotating shaft 33 and the conveying pipe 4 are sealed, the device conveys small-particle solid fluorine-containing liquid crystal intermediates over a short distance, the components are all made of fluorine-lined or stainless steel, and the whole is sealed The closed design prevents leakage of dust or volatiles. The device adopts spiral conveying blades 34 for conveying. The two curved plates 31 are opposite to each other to form a pipe outside the spiral conveying blades 34. At this time, the pipe formed by the curved plate 31 is connected to the conveying pipes 4 on both sides. After long-term use, residual materials are likely to remain on the surface of the spiral conveying blades 34. At this time, the residual materials on the surface of the spiral conveying blades 34 exist as a liquid film. At this time, the spiral conveying blades 34 need to be cleaned. A control valve is installed on the conveying pipe 4. When cleaning, the control valves on the conveying pipes 4 on both sides of the conveying component 3 are closed, so that the sealing box 2 is in a sealed and isolated state at this time and is not connected to other pipes. The two curved plates 31 are separated to expose the spiral conveying blades 34 inside. The cleaning component 5 cleans the spiral conveying blades 34 without disassembly, which is more convenient to operate. At the same time, the whole process is carried out in the sealing box 2 to prevent the volatilization of residual materials from affecting the safety of the staff.

[0026] like Figure 2 and Figure 3 As shown, a seal is provided between the two curved plates 31, and multi-layer sealing measures, such as sealing gaskets and sealing sheets, are adopted on the two opposite sides of the curved plate 31 to prevent the material from leaking from the gap between the two curved plates 31 and falling into the sealing box 2 during transportation. In order to cope with the strong corrosiveness, volatility and toxicity of the material, the main sealing layer adopts a perfluoroether rubber sealing gasket, which can withstand the penetration of fluorine-containing intermediates for a long time, has excellent elasticity, and can adapt to the dynamic micro-deformation of the curved plate 31. A 0.1mm thick polytetrafluoroethylene (PTFE) film is added on the inside to further block the direct contact between the material and the sealing gasket by utilizing the chemical inertness of PTFE, thereby preventing the sealing material precipitates from contaminating the material.

[0027] like Figure 2 、 Figure 3 、 Figure 4 and Figure 5As shown, the inner wall of the sealing box 2 is fixedly connected with two fixed plates 6, the fixed plates 6 are slidably connected with sliding rods 7, the two sliding rods 7 are fixed with two arc-shaped plates 31 respectively, the sliding rods 7 penetrate through the fixed plates 6, the two arc-shaped plates 31 are installed on the fixed plates 6 through the sliding rods 7, the two arc-shaped plates 31 are horizontally opposite, and the contact seam is vertically arranged. When the spiral conveying blade 34 is cleaned, the two arc-shaped plates 31 slide horizontally on the fixed plates 6 and move away from each other to expose the middle spiral conveying blade 34 for cleaning. After cleaning, the remaining materials directly fall into the sealing box 2. Because the materials have changed after being left for too long, they cannot be directly used and can only be treated as waste.

[0028] As shown in Figure 2 , Figure 3 and Figure 4 , the two sliding rods 7 are fixedly connected with vertical plates 8, and the vertical plates 8 are fixedly connected with the fixed plates 6 through springs 9. When the materials are conveyed, the two arc-shaped plates 31 are attached and wrapped around the spiral conveying blade 34. At this time, the two springs 9 push the arc-shaped plates 31 from both sides of the arc-shaped plates 31 to make the two arc-shaped plates 31 fit more closely. At the same time, through the sealing element between the two arc-shaped plates 31, the sealing effect between the two arc-shaped plates 31 is improved, and the risk of leakage is reduced.

[0029] As shown in Figure 2 , Figure 3 and Figure 4 , the inner wall of the sealing box 2 is fixedly connected with a mounting frame 10, the lower surface of the mounting frame 10 is fixedly connected with a second servo motor, the main shaft of the second servo motor is fixedly connected with a gear 12, and the opposite sides of the two vertical plates 8 are fixedly connected with two racks 11. The rack 11 is engaged with the gear 12. When the materials are conveyed and the spiral conveying blade 34 is cleaned, the arc-shaped plates 31 need to be moved. At this time, the second servo motor is directly started, the second servo motor drives the gear 12 to rotate, the gear 12 drives the two racks 11 to move, and then drives the two arc-shaped plates 31 to slide, thereby facilitating the control of the arc-shaped plates 31.

[0030] As shown in Figure 2 and Figure 3 and Figure 4As shown, the cleaning assembly 5 includes a slide rail 51 located in the sealing box 2, the slide rail 51 is in sliding connection with the sealing box 2, the slide rail 51 is in sliding connection with a sliding seat 52, the upper surface of the sliding seat 52 is in rotary connection with a rotary seat 53, the upper surface of the rotary seat 53 is fixedly connected with a wiping roller 54, when the spiral conveying blade 34 is cleaned, the arc-shaped plate 31 is separated, the slide rail 51 rises, the wiping roller 54 is inserted between the spiral conveying blades 34, then the first servo motor 32 is started to make the spiral conveying blade 34 rotate, when the spiral conveying blade 34 rotates, the spiral surface contacts the wiping roller 54, with the rotation of the spiral conveying blade 34, the wiping roller 54 is pushed to slide along the slide rail 51, when sliding, the contact position of the wiping roller 54 with the spiral conveying blade 34 changes constantly, which facilitates the wiping and cleaning of the spiral conveying blade 34 by the wiping roller 54, then after the spiral surface on one side of the spiral conveying blade 34 is cleaned, the first servo motor 32 is reversed to make the spiral surface on the other side contact the wiping roller 54 to clean the other side, thereby facilitating the double-sided cleaning of the spiral conveying blade 34, which is convenient to use.

[0031] As shown in Figure 4 , Figure 5 and Figure 6 , one side of one of the vertical plates 8 is fixedly connected with a vertical plate 13, one side of the vertical plate 13 is fixedly connected with a mounting plate 14, the upper surface of the mounting plate 14 is fixedly connected with a triangular block 15, the lower surface of the slide rail 51 is fixedly connected with an arc-shaped block 16, when the spiral conveying blade 34 is cleaned, the arc-shaped plate 31 is separated, when the arc-shaped plate 31 is separated, the triangular block 15 is pulled to move together, when the triangular block 15 contacts the arc-shaped block 16, the arc-shaped block 16 is pushed upward, thereby pushing the slide rail 51 upward, the height of the slide rail 51 is increased, the wiping roller 54 is inserted between the spiral conveying blades 34, then the wiping roller 54 cleans the spiral conveying blade 34, the structure is compact, and it is more convenient to use.

[0032] As shown in Figure 5 , the two sides of the sealing box 2 are both provided with a connecting pipe 17, the connecting pipe 17 is fixedly connected with the conveying pipe 4, the inner side of the arc-shaped plate 31 is provided with an arc-shaped connecting groove, one side of the connecting pipe 17 is fixedly connected with an arc-shaped connecting plate, when the two arc-shaped plates 31 are attached to form a tubular shape, at this time, the arc-shaped connecting groove in the inner side of the arc-shaped plate 31 is attached to the arc-shaped connecting plate on one side of the connecting pipe 17 at both ends, a sealing element is arranged between the arc-shaped plate 31 and the arc-shaped connecting plate, including but not limited to a fluorine rubber pad (such as FKM material) or a perfluoroether rubber pad (FFKM) which can resist the corrosion of acidic substances or organic solvents that may be contained in fluorine-containing liquid crystal intermediates and other measures, thereby improving the sealing effect between the arc-shaped plate 31 and the arc-shaped connecting plate.

[0033] As shown in Figure 1As shown, the upper surface of the sealed box 2 is fixedly connected with a rack 18, two gas storage tanks 19 are installed on the rack 18, the lower surfaces of the gas storage tanks 19 are communicated with gas pipes 20, the gas pipes 20 penetrate the sealed box 2, the two gas pipes 20 are fixed with the arc-shaped plates 31 respectively, the gas pipes 20 penetrate the arc-shaped plates 31, when the material is transported and the spiral conveying blades 34 are cleaned, the gas storage tanks 19 are opened, the inert gas in the gas storage tanks 19 is blown out, the spiral conveying blades 34 are blown to promote the separation of the residual material, the connection state of the gas pipes 20 and the arc-shaped plates 31 is inclined, the connection ports of the gas pipes 20 and the arc-shaped plates 31 are towards the direction of the material conveying, and when the material is transported, the airflow blows the material to promote the conveying speed of the material.

[0034] Working principle: when cleaning, the control valves on the conveying pipes 4 at both sides of the conveying assembly 3 are closed, so that the sealed box 2 is in a sealed and isolated state and is not communicated with other pipelines, the second servo motor is directly started, the second servo motor drives the gear 12 to rotate, the gear 12 drives the two racks 11 to move, and then drives the two arc-shaped plates 31 to slide, the two arc-shaped plates 31 slide horizontally on the fixed plate 6 and move away from each other to expose the middle spiral conveying blades 34, when the arc-shaped plates 31 are separated, the triangular blocks 15 are pulled to move together, when the triangular blocks 15 contact the arc-shaped blocks 16, the arc-shaped blocks 16 are pushed upwards, and then the slide rails 51 are pushed upwards, the height of the slide rails 51 is increased, the wiping rollers 54 are inserted between the spiral conveying blades 34, then the first servo motor 32 is started, the spiral conveying blades 34 are rotated, the spiral surface of the spiral conveying blades 34 contacts the wiping rollers 54, with the rotation of the spiral conveying blades 34, the wiping rollers 54 are driven to slide along the slide rails 51, when sliding, the contact position of the wiping rollers 54 and the spiral conveying blades 34 changes constantly, which facilitates the wiping and cleaning of the spiral conveying blades 34 by the wiping rollers 54, then the first servo motor 32 is reversed, the spiral surface on the other side contacts the wiping roller 54 to wipe and clean the other side, thereby facilitating the double-sided cleaning of the spiral conveying blades 34, when the spiral conveying blades 34 are cleaned, the gas storage tanks 19 are opened, the inert gas in the gas storage tanks 19 is blown out to blow the spiral conveying blades 34 and promote the separation of the residual material, the first servo motor 32 and the second servo motor are controlled by the existing control system, are used in coordination, the second servo motor located inside can use the existing motor suitable for a sealed environment to balance heat dissipation and performance, the second servo motor is powered by wiring, the wires penetrate the sealed box 2 and are sealed at the penetrated positions.

[0035] The various embodiments in this specification are described in a progressive manner. Similar parts between the various embodiments can be referred to in conjunction with each other. Each embodiment focuses on the differences between the other embodiments. In particular, the system embodiments are generally similar to the method embodiments, so the description is relatively simple. For relevant parts, refer to the description of the method embodiments.

[0036] The foregoing is merely an embodiment of the present invention and is not intended to limit the present invention. It will be apparent to those skilled in the art that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention are intended to be included within the scope of the claims of the present invention.

Claims

1. A conveying device for processing fluorine-containing liquid crystal intermediates, characterized in that: The invention comprises a bottom plate (1), the upper surface of the bottom plate (1) is fixedly connected to a sealing box (2), a conveying assembly (3) is arranged in the sealing box (2), both sides of the sealing box (2) are connected to a conveying pipe (4), the conveying pipe (4) is connected to the conveying assembly (3), a cleaning assembly (5) is installed in the sealing box (2), the cleaning assembly (5) is used to clean the conveying assembly (3), the conveying assembly (3) comprises two arc-shaped plates (31), a first servo motor (32) is installed on the bottom plate (1), the main shaft of the first servo motor (32) is fixedly connected to a rotating shaft (33), a spiral conveying blade (34) is fixed on the outer side of the rotating shaft (33), the rotating shaft (33) passes through the conveying pipe (4) and is rotatably connected to the conveying pipe (33), and the spiral conveying blade (34) is located between the two arc-shaped plates (31).

2. A conveying device for processing fluorine-containing liquid crystal intermediates according to claim 1, characterized in that: A sealing member is provided between the two arc-shaped plates (31).

3. A conveying device for processing fluorine-containing liquid crystal intermediates according to claim 1, characterized in that: The inner wall of the sealing box (2) is fixedly connected to two fixed plates (6), and the fixed plates (6) are slidably connected to sliding rods (7). The two sliding rods (7) are respectively fixed to the two arc-shaped plates (31), and the sliding rods (7) pass through the fixed plates (6).

4. A conveying device for processing a fluorine-containing liquid crystal intermediate according to claim 3, characterized in that: The two sliding rods (7) are fixedly connected to vertical plates (8), and a spring (9) is fixedly connected between the vertical plates (8) and the fixed plate (6).

5. A conveying device for processing fluorine-containing liquid crystal intermediates according to claim 4, characterized in that: The inner wall of the sealing box (2) is fixedly connected to the mounting frame (10), the lower surface of the mounting frame (10) is fixedly connected to the second servo motor, the main shaft of the second servo motor is fixedly connected to the gear (12), and the opposite sides of the two vertical plates (8) are fixedly connected to the rack (11), and the rack (11) is meshed with the gear (12).

6. The conveying device for processing fluorine-containing liquid crystal intermediates according to claim 4, characterized in that: The cleaning assembly (5) includes a slide rail (51), the slide rail (51) is located in the sealing box (2), the slide rail (51) is slidably connected to the sealing box (2), the slide rail (51) is slidably connected to the sliding seat (52), the upper surface of the sliding seat (52) is rotatably connected to the rotating seat (53), and the upper surface of the rotating seat (53) is fixedly connected to the wiping roller (54).

7. A conveying device for processing a fluorine-containing liquid crystal intermediate according to claim 6, characterized in that: One side of one of the vertical plates (8) is fixedly connected to the vertical plate (13), one side of the vertical plate (13) is fixedly connected to the mounting plate (14), the upper surface of the mounting plate (14) is fixedly connected to the triangular block (15), and the lower surface of the slide rail (51) is fixedly connected to the arc block (16).

8. The conveying device for processing fluorine-containing liquid crystal intermediates according to claim 1, characterized in that: Connecting pipes (17) are installed on both sides of the sealing box (2), and the connecting pipes (17) are fixedly connected to the delivery pipes (4) respectively. An arc-shaped connecting groove is provided on the inner side of the arc-shaped plate (31), and one side of the connecting pipe (17) is fixedly connected to the arc-shaped connecting plate.

9. The conveying device for processing fluorine-containing liquid crystal intermediates according to claim 1, characterized in that: The upper surface of the sealed box (2) is fixedly connected to the placement rack (18), and two gas storage tanks (19) are installed on the placement rack (18). The lower surfaces of the gas storage tanks (19) are connected to the air pipe (20), and the air pipe (20) passes through the sealed box (2). The two air pipes (20) are respectively fixed to the arc plate (31), and the air pipe (20) passes through the arc plate (31).

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