Hydrogen fluoride rotary reactor screw conveyor sealing mechanism

Abstract

The present application relates to a kind of hydrogen fluoride rotary reaction furnace screw conveying sealing mechanism.When the furnace body rotates, end cap, ladle and end plate are synchronously rotated, the fluorine slag deposited is scooped up by ladle and slides to the material burying bin formed by end cap, end plate and ladle, then it is input into the feed opening of screw conveying sealing mechanism body by material burying bin, it is driven screw shaft rotation to make pitch varying helical blade drive fluorine slag to X direction conveying, since the volume of the ladle body of the ladle is greater than the volume of the material burying bin, and the pitch of pitch varying helical blade gradually decreases along X direction, so that the feed inlet is always covered with fluorine slag to cover feed inlet, and since the pitch of pitch varying helical blade gradually decreases, fluorine slag is filled in screw conveying sealing mechanism body, so that hydrogen fluoride gas in the furnace body cannot enter screw conveying sealing mechanism body, since the upper end height of the turnover material baffle is higher than the upper end of the conveying mechanism shell, fluorine slag can be fully filled in discharge opening, form material seal, ensure the stability and reliability of sealing.

Description

Technical Field

[0001] This invention relates to the field of chemical equipment structure technology, and in particular to a spiral conveying sealing mechanism for a hydrogen fluoride rotary reactor. Background Technology

[0002] The fluorite sulfuric acid process is currently the conventional process for producing anhydrous hydrofluoric acid (AHF), and the main reaction equipment is an externally jacketed heated rotary reactor.

[0003] Fluorite powder and sulfuric acid mixture enter from the furnace head and react with heat in the rotating furnace body to produce hydrogen fluoride, which is then drawn away from the furnace head by a blower. The by-product fluorine slag (CaSO4 mixed with residual acid and gas) moves towards the furnace tail, is scooped up by the slag hopper at the furnace tail, poured into the slag discharge device, and discharged by a rotating screw conveyor.

[0004] There are two types of screw conveyors: one is to install the screw and its shell as an integral part of the furnace body, so that the fluorine slag is discharged as the furnace body and the screw rotate together; the other is to extend the screw conveyor into the furnace body to receive the material, and drive the screw to rotate by another power source, so that the fluorine slag is discharged after being sent out of the furnace body.

[0005] The furnace is filled with hydrogen fluoride, a highly toxic and corrosive gas. The screw conveyor's capacity is generally required to exceed the slag discharge requirements to compensate for design calculation errors or future increases in production. Regardless of the discharge method, the fluorinated slag is conveyed by the screw in the lower part of the conveyor housing, while a cavity is formed in the upper part of the housing from which hydrogen fluoride gas flows out. Due to the low ambient temperature inside the conveyor housing and subsequent processing equipment, the hydrogen fluoride condenses and reacts with water vapor that has seeped in due to poor sealing of the subsequent processing equipment, forming highly corrosive hydrofluoric acid. This hydrofluoric acid corrodes and damages the conveyor housing and subsequent processing equipment, severely impacting equipment lifespan and even posing a production safety hazard due to the leakage of highly toxic hydrogen fluoride gas. Summary of the Invention

[0006] The technical problem to be solved by this invention is: how to ensure that the hydrogen fluoride gas inside the rotary reactor does not flow out of the shell, condense, corrode, or leak, while meeting the conveying capacity requirements of the spiral conveyor sealing mechanism.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0008] A spiral conveying sealing mechanism for a hydrogen fluoride rotary reactor includes a frame, furnace body, end cover, slag hopper, end plate, spiral conveying sealing mechanism body, and material turning box;

[0009] The furnace body is rotatably connected to the frame, the end cover is connected to the X-axis end of the furnace body, and a plurality of slag-collecting hoppers are connected in a circumferential array to the opposite side of the X-axis of the end cover. The end plate is annular in shape and is connected to the opposite side of the X-axis of the slag-collecting hopper. The end plate is coaxial with the furnace body, so that multiple material-burying bins are formed between the slag-collecting hoppers, the end plate and the end cover.

[0010] The scooping volume of the slag-collecting hopper is greater than the volume of the buried material bin;

[0011] The spiral conveying sealing mechanism body includes a conveying mechanism housing, a spiral shaft, and variable pitch spiral blades. The variable pitch spiral blades are coaxially wound around the spiral shaft. The spiral shaft is coaxial with the furnace body. The rotation direction of the spiral shaft is opposite to the rotation direction of the furnace body. The pitch of the variable pitch spiral blades gradually decreases along the X direction.

[0012] The conveying mechanism housing is cylindrical in shape and is fixedly connected to the frame. The conveying mechanism housing is sleeved on the outside of the screw shaft and the variable pitch screw blades. The X-direction opposite end of the conveying mechanism housing extends into the annular inner hole of the end plate inside the furnace body, so that the outer extension of the conveying mechanism housing is in clearance fit with the inner hole of the end plate. The upper part of the conveying mechanism housing between the end plate and the end cover is provided with a feed port.

[0013] The material turning box is located at one end of the conveying mechanism housing in the X direction of the variable pitch spiral blade. The upper part of the conveying mechanism housing at the material turning box has a discharge port, and the material turning box covers the discharge port. The lower part of the material turning box has a slag discharge port. The discharge port has upward-extending material turning baffles on both sides in the Y direction. The upper end of the material turning baffles is higher than the upper end of the conveying mechanism housing.

[0014] Furthermore, in the aforementioned spiral conveying sealing mechanism for the hydrogen fluoride rotary reactor, multiple feed grids are connected between two adjacent slag-collecting hoppers, and the multiple feed grids are arranged in a straight line along the X direction.

[0015] Furthermore, in the aforementioned spiral conveying sealing mechanism for the hydrogen fluoride rotary reactor, the number of slag-collecting hoppers is 5.

[0016] Furthermore, in the aforementioned spiral conveying sealing mechanism for the hydrogen fluoride rotary reactor, the volume of the buried hopper is greater than the material conveying volume of one-fifth of a revolution of the variable-pitch spiral blades at the feed inlet of the spiral conveying sealing mechanism body.

[0017] Furthermore, in the aforementioned spiral conveying sealing mechanism for the hydrogen fluoride rotary reactor, a reverse spiral blade is wound around one end of the spiral shaft in the X direction, which is arranged in the opposite direction to the variable pitch spiral blade. The reverse spiral blade is located on the X-direction side of the discharge port.

[0018] Furthermore, in the aforementioned spiral conveying sealing mechanism for the hydrogen fluoride rotary reactor, the upper part of the turning box is provided with a detachable box cover.

[0019] Furthermore, in the aforementioned spiral conveying sealing mechanism for the hydrogen fluoride rotary reactor, inclined wing plates are respectively provided on both sides of the box cover in the Y direction.

[0020] Furthermore, the spiral conveying sealing mechanism of the aforementioned hydrogen fluoride rotary reactor also includes a dynamic and static ring sealing device, which includes a dynamic sealing ring, a static sealing ring, a static sealing support, an expansion joint, a pressing cylinder, a mounting support, and supporting rollers.

[0021] The dynamic sealing ring is connected to the connection between the end cover and the housing of the conveying mechanism, and the static sealing ring is connected to the static sealing support;

[0022] The mounting bracket is connected to the frame, the cylinder body of the clamping cylinder is connected to the mounting bracket, the piston rod of the clamping cylinder is connected to the static sealing bracket, the telescopic joint is connected between the sealing bracket and the mounting bracket, the support roller is disposed on the mounting bracket, and the static sealing bracket is provided with a support plate that is slidably connected to the support roller.

[0023] Furthermore, in the aforementioned spiral conveying sealing mechanism for the hydrogen fluoride rotary reactor, the cover of the tank is provided with an observation hole cover.

[0024] Furthermore, in the aforementioned spiral conveying sealing mechanism for the hydrogen fluoride rotary reactor, a baffle plate is welded below the observation hole cover, and the lower plane of the baffle plate is flush with the lower plane of the tank cover.

[0025] The beneficial effects of this invention are as follows: The end plate is designed as a ring, and its inner circular hole is used to avoid the screw conveyor sealing mechanism body. When the furnace body rotates, the end cover, the slag hopper, and the end plate rotate synchronously. Due to gravity, the fluorine slag is deposited at the lower part of one end of the furnace body in the X direction. The slag hopper picks up the deposited fluorine slag and slides it into the burial bin formed by the end cover, the end plate, and the slag hopper. The slag is then fed into the feed opening of the screw conveyor sealing mechanism body through the burial bin. The screw shaft is driven to rotate, causing the variable pitch screw blades to carry the fluorine slag in the X direction. Since the scooping volume of the slag hopper is larger than the volume of the burial bin, and the pitch of the variable pitch screw blades gradually decreases along the X direction, the feed inlet is always filled with fluorine slag to cover the feed inlet. As the pitch of the variable pitch screw blades gradually decreases, the fluorine slag fills the screw conveyor sealing mechanism body, preventing the hydrogen fluoride gas in the furnace body from entering the screw conveyor sealing mechanism body and avoiding the discharge of hydrogen fluoride gas from the discharge port of the screw conveyor sealing mechanism body. Because the upper end of the tipping baffle is higher than the upper end of the conveying mechanism housing, the fluorine slag can fully fill the discharge port, forming a material seal. The continuously conveyed fluorine slag overflows from the upper end of the tipping baffle into the tipping box and is discharged through the slag discharge port at the bottom of the tipping box. By setting up the tipping baffle, an additional seal is added, ensuring the stability and reliability of the seal. Therefore, provided that the conveying capacity of the spiral conveyor sealing mechanism of the hydrogen fluoride rotary reactor meets the production requirements, hydrogen fluoride gas inside the furnace will not flow out of the shell, causing leakage, condensation, corrosion, or other problems. Attached Figure Description

[0026] Figure 1 This is a structural cross-sectional view of a spiral conveying sealing mechanism for a hydrogen fluoride rotary reactor according to a specific embodiment of the present invention;

[0027] Figure 2 for Figure 1 A-direction cross-section view;

[0028] Figure 3 This is a schematic diagram of the spiral shaft, variable pitch spiral blades, and reverse spiral blades of a spiral conveying sealing mechanism for a hydrogen fluoride rotary reactor according to a specific embodiment of the present invention.

[0029] Figure 4 for Figure 1 Section view along direction B;

[0030] Figure 5 for Figure 1 C-direction partial view;

[0031] Label Explanation:

[0032] 1. Furnace body; 11. End cover; 12. End plate; 13. Slag hopper; 131. Feed grate; 14. Buried material bin;

[0033] 2. Screw conveyor sealing mechanism body; 21. Conveying mechanism housing; 211. Feed inlet; 212. Discharge outlet; 2121. Tilting baffle; 22. Screw shaft; 23. Variable pitch screw blade; 231. First screw blade; 232. Second screw blade; 233. Third screw blade; 24. Reverse screw blade;

[0034] 3. Tilting box; 31. Slag discharge port; 32. Box cover; 33. Wing plate; 34. Observation hole cover; 341. Baffle plate;

[0035] 4. Bearing housing;

[0036] 5. Couplings;

[0037] 6. Gear motor;

[0038] 7. Dynamic and static ring sealing device; 71. Dynamic sealing ring; 72. Static sealing ring; 73. Static sealing support; 74. Expansion joint; 75. Pressing cylinder; 76. Mounting support; 77. Support roller; 78. Oil pump. Detailed Implementation

[0039] To explain in detail the technical content, objectives, and effects of the present invention, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0040] Please refer to Figures 1 to 5 The present invention relates to a spiral conveying sealing mechanism for a hydrogen fluoride rotary reactor, comprising a frame, a furnace body 1, an end cover 11, a slag hopper 13, an end plate 12, a spiral conveying sealing mechanism body 2, and a material turning box 3.

[0041] The furnace body 1 is rotatably connected to the frame, the end cover 11 is connected to the X-direction end of the furnace body 1, and a plurality of slag-collecting hoppers 13 are connected in a circumferential array to the opposite side of the X-direction of the end cover 11. The end plate 12 is annular in shape and is connected to the opposite side of the X-direction of the slag-collecting hoppers 13. The end plate 12 is coaxial with the furnace body 1, so that a plurality of material-burying bins 14 are formed between the slag-collecting hoppers 13, the end plate 12 and the end cover 11.

[0042] The scooping volume of the slag hopper 13 is greater than the volume of the buried material bin 14;

[0043] The spiral conveying sealing mechanism body 2 includes a conveying mechanism housing 21, a spiral shaft 22, and variable pitch spiral blades 23. The variable pitch spiral blades 23 are coaxially wound around the spiral shaft 22. The spiral shaft 22 is coaxial with the furnace body 1. The rotation direction of the spiral shaft 22 is opposite to the rotation direction of the furnace body 1. The pitch of the variable pitch spiral blades 23 gradually decreases along the X direction.

[0044] The conveying mechanism housing 21 is cylindrical in shape and is fixedly connected to the frame. The conveying mechanism housing 21 is sleeved on the outside of the screw shaft 22 and the variable pitch screw blade 23. The X-direction opposite end of the conveying mechanism housing 21 extends into the annular inner hole of the end plate 12 inside the furnace body 1, so that the outer extension of the conveying mechanism housing 21 is clearance-fitted with the inner hole of the end plate 12. The upper part of the conveying mechanism housing 21 located between the end plate 12 and the end cover 11 is provided with a feed inlet 211.

[0045] The material turning box 3 is located at the X-axis end of the conveying mechanism housing 21, which is located at the variable pitch spiral blade 23. The upper part of the conveying mechanism housing 21 at the material turning box 3 is provided with a discharge port 212. The material turning box 3 covers the discharge port 212. The lower part of the material turning box 3 is provided with a slag discharge port 31. The discharge port 212 has upwardly extending material turning baffles 2121 on both sides in the Y-axis direction. The upper end of the material turning baffles 2121 is higher than the upper end of the conveying mechanism housing 21.

[0046] In the above embodiments, the furnace body 1 is a hydrogen fluoride rotary reactor, which is supported by rollers on the frame and thus rotatably connected to the frame, wherein the structure of the rollers is not shown in the figure; the end cover 11 is fixed to the flange at one end of the furnace body 1 in the X direction by high-strength bolts.

[0047] In the above embodiments, the end plate 12 is designed as a ring, and its inner circular hole is used to avoid the screw conveyor sealing mechanism body 2. When the furnace body 1 rotates, the end cover 11, the slag hopper 13 and the end plate 12 rotate synchronously. Due to gravity, the fluorine slag is deposited at the lower part of one end of the furnace body 1 in the X direction. The deposited fluorine slag is picked up by the slag hopper 13 and slides into the buried material bin 14 formed by the end cover 11, the end plate 12 and the slag hopper 13. Then, the material is fed into the feed opening of the screw conveyor sealing mechanism body 2 through the buried material bin 14. The variable pitch screw blades are rotated by driving the screw shaft 22 to rotate. The blade 23 drives the fluorine slag to be conveyed in the X direction. Since the scooping volume of the slag hopper 13 is larger than the volume of the buried silo 14, and the pitch of the variable pitch spiral blade 23 gradually decreases along the X direction, the feed inlet 211 is always filled with fluorine slag to cover the feed inlet 211. As the pitch of the variable pitch spiral blade 23 gradually decreases, the fluorine slag is filled in the spiral conveying sealing mechanism body 2, so that the hydrogen fluoride gas in the furnace body 1 cannot enter the spiral conveying sealing mechanism body 2, thus preventing the hydrogen fluoride gas from being discharged from the discharge port 212 of the spiral conveying sealing mechanism body 2.

[0048] In the above embodiments, one X-axis end of the screw shaft 22 is connected to the geared motor 6 via a coupling 5. The geared motor 6 is connected to the frame, and a bearing seat 4 is also provided on the frame. The geared motor 6 drives the screw shaft 22 to rotate, and the X-axis end of the screw shaft 22 is connected to the bearing seat 4. Preferably, the geared motor 6 is a variable frequency motor, and the housing adjusts the rotational speed of the screw shaft 22, so that the rotational speed of the screw shaft 22 is adjustable, ensuring the best sealing effect for the material.

[0049] In the above embodiments, preferably, the variable pitch helical blade 23 is composed of three helical blades spliced ​​together, including a first helical blade 231, a second helical blade 232 and a third helical blade 233 arranged sequentially along the X direction with decreasing pitch, so that the fluorine slag conveying capacity in the spiral conveying sealing mechanism body 2 gradually decreases, and the fluorine slag is continuously squeezed in the conveying mechanism body, thereby filling the spiral conveying structure body, so that no cavity can be formed inside to provide hydrogen fluoride gas to escape.

[0050] In the above embodiments, since the upper end of the tipping baffle 2121 is higher than the upper end of the conveying mechanism housing 21, the fluorine slag can fully fill the discharge port 212 to form a material seal. The continuously conveyed fluorine slag overflows from the upper end of the tipping baffle 2121 into the tipping box 3 and is discharged through the slag discharge port 31 at the bottom of the tipping box 3.

[0051] As an optional implementation, a plurality of feed grids 131 are connected between two adjacent slag-collecting hoppers 13, and the plurality of feed grids 131 are arranged in a straight line along the X direction.

[0052] In the above embodiments, the feed grid 131 can prevent large pieces of fluorine slag from entering the spiral shell and becoming suspended, thus avoiding a reduction in the sealing effect of the buried material.

[0053] As an optional implementation, the number of slag-collecting hoppers 13 is 5.

[0054] In the above embodiments, there are 5 slag-collecting hoppers 13, and the furnace body 1 structure adopts a multiple of six equal division design in many places. The above improvements can reduce the resonance caused by the rotation of the furnace body 1.

[0055] As an optional implementation, the volume of the buried hopper 14 is greater than the material conveying volume of the variable pitch spiral blade 23 at the feed inlet 211 of the spiral conveying sealing mechanism body 2 when it rotates one-fifth of a turn.

[0056] In the above embodiments, the fluorine slag can be filled into the spiral conveying sealing mechanism body 2, so that the hydrogen fluoride gas in the furnace body 1 cannot enter the spiral conveying sealing mechanism body 2, and the hydrogen fluoride gas is prevented from being discharged from the discharge port 212 of the spiral conveying sealing mechanism body 2.

[0057] As an optional implementation, a reverse spiral blade 24 is wound around one end of the spiral shaft 22 in the X direction, which is arranged in the opposite direction to the variable pitch spiral blade 23. The reverse spiral blade 24 is located on the X direction side of the discharge port 212.

[0058] In the above embodiments, due to the reverse pushing of the reverse spiral blades 24, the fluorine slag can be concentrated and discharged from the discharge port 212. With the help of the turning baffle 2121, the fluorine slag can fully fill the discharge port 212, forming a material seal.

[0059] As an optional implementation, the upper part of the material turning box 3 is provided with a detachable box cover 32.

[0060] In the above embodiments, when the fluorine residue does not turn smoothly in the turning box 3, the box cover 32 can be opened to clean it and avoid jamming.

[0061] As an optional implementation, the box cover 32 is provided with inclined wing plates 33 on both sides in the Y direction.

[0062] In the above embodiments, the wing plate 33 is provided so that after the fluorine slag overflows from the tipping baffle 2121, it can move smoothly to the slag discharge port 31 below.

[0063] As an optional implementation, it also includes a dynamic and static ring sealing device 7, which includes a dynamic sealing ring 71, a static sealing ring 72, a static sealing support 73, a telescopic joint 74, a pressing cylinder 75, a mounting support 76, and a support roller 77.

[0064] The dynamic sealing ring 71 is connected to the connection between the end cover 11 and the conveying mechanism housing 21, and the static sealing ring 72 is connected to the static sealing support 73;

[0065] The mounting bracket 76 is connected to the frame, the cylinder body of the clamping cylinder 75 is connected to the mounting bracket 76, the piston rod of the clamping cylinder 75 is connected to the static sealing bracket 73, the telescopic joint 74 is connected between the sealing bracket and the mounting bracket 76, the support roller 77 is disposed on the mounting bracket 76, and the static sealing bracket 73 is provided with a support plate that is slidably connected to the support roller 77.

[0066] In the above embodiments, the material of the expansion joint 74 can be polytetrafluoroethylene. The dynamic sealing ring 71 rotates together with the furnace body 1. Due to the thermal expansion and contraction of the furnace body 1, the end cover 11 of the furnace body 1 will move in the X direction, while the screw conveying sealing mechanism body 2 itself will not move. This will cause the position of the dynamic sealing ring 71 to undergo axial relative displacement. The expansion joint 74 and the pressing cylinder 75 are used to keep the static sealing ring 72 pressed against the dynamic sealing ring 71 to achieve dynamic sealing. The static sealing ring 72 is prevented from sagging by the support of the supporting roller 77.

[0067] A dedicated oil groove can be provided on the static sealing ring 72, and the oil groove is connected to an oil pump 78. High-temperature grease can be added to the oil groove of the static sealing ring 72 at regular intervals to reduce the wear of the pressing surfaces of the dynamic sealing ring 71 and the static sealing ring 72, thereby enhancing the sealing effect of the dynamic and static rings.

[0068] As an optional implementation, the box cover 32 is provided with an observation hole cover 34.

[0069] In the above embodiments, the observation hole cover 34 is olive-shaped and is locked with two quick-opening hinge bolt assemblies, which facilitates quick opening to observe the material turning situation inside the turning box 3.

[0070] As an optional implementation, a baffle plate 341 is welded below the observation hole cover 34, and the lower surface of the baffle plate 341 is flush with the lower surface of the box cover 32.

[0071] In the above embodiments, the upward-turned fluorine residue will not squeeze into the transition section of the observation hole cover 34 on the box cover 32 for installation, thus affecting the observation effect when the observation hole cover 34 is opened.

[0072] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent modifications made based on the content of the present invention specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A spiral conveying and sealing mechanism for a hydrogen fluoride rotary reactor, characterized in that, Includes frame, furnace body, end cover, slag hopper, end plate, screw conveyor sealing mechanism body and tipping box; The furnace body is rotatably connected to the frame, the end cover is connected to the X-axis end of the furnace body, and a plurality of slag-collecting hoppers are connected in a circumferential array to the opposite side of the X-axis of the end cover. The end plate is annular in shape and is connected to the opposite side of the X-axis of the slag-collecting hopper. The end plate is coaxial with the furnace body, so that multiple material-burying bins are formed between the slag-collecting hoppers, the end plate and the end cover. The scooping volume of the slag-collecting hopper is greater than the volume of the buried material bin; The spiral conveying sealing mechanism body includes a conveying mechanism housing, a spiral shaft, and variable pitch spiral blades. The variable pitch spiral blades are coaxially wound around the spiral shaft. The spiral shaft is coaxial with the furnace body. The rotation direction of the spiral shaft is opposite to the rotation direction of the furnace body. The pitch of the variable pitch spiral blades gradually decreases along the X direction. The conveying mechanism housing is cylindrical in shape and is fixedly connected to the frame. The conveying mechanism housing is sleeved on the outside of the screw shaft and the variable pitch screw blades. The X-direction opposite end of the conveying mechanism housing extends into the annular inner hole of the end plate inside the furnace body, so that the outer extension of the conveying mechanism housing is in clearance fit with the inner hole of the end plate. The upper part of the conveying mechanism housing between the end plate and the end cover is provided with a feed port. The material turning box is located at one end of the conveying mechanism housing in the X direction of the variable pitch spiral blade. The upper part of the conveying mechanism housing at the material turning box is provided with a discharge port. The material turning box covers the discharge port. The lower part of the material turning box is provided with a slag discharge port. The two sides of the discharge port in the Y direction are provided with upwardly extending material turning baffles. The upper end of the material turning baffles is higher than the upper end of the conveying mechanism housing. Multiple feed grids are connected between two adjacent slag-collecting hoppers, and the multiple feed grids are arranged in a straight line along the X direction.

2. The spiral conveying sealing mechanism for the hydrogen fluoride rotary reactor according to claim 1, characterized in that, The number of slag-collecting hoppers is 5.

3. The spiral conveying sealing mechanism for the hydrogen fluoride rotary reactor according to claim 1, characterized in that, The volume of the buried hopper is greater than the material conveying volume of one-fifth of a revolution of the variable pitch spiral blades at the inlet of the spiral conveyor sealing mechanism body.

4. The spiral conveying sealing mechanism for the hydrogen fluoride rotary reactor according to claim 1, characterized in that, One end of the spiral shaft in the X direction is wound with a reverse spiral blade that is arranged in the opposite direction to the variable pitch spiral blade. The reverse spiral blade is located on the X-direction side of the discharge port.

5. The spiral conveying sealing mechanism for the hydrogen fluoride rotary reactor according to claim 1, characterized in that, The top of the material handling box is equipped with a removable cover.

6. The spiral conveying sealing mechanism for the hydrogen fluoride rotary reactor according to claim 5, characterized in that, The box cover has inclined wing plates on both sides in the Y direction.

7. The spiral conveying sealing mechanism for the hydrogen fluoride rotary reactor according to claim 1, characterized in that, It also includes a dynamic and static ring sealing device, which includes a dynamic sealing ring, a static sealing ring, a static sealing support, an expansion joint, a pressing cylinder, a mounting support, and support rollers; The dynamic sealing ring is connected to the connection between the end cover and the housing of the conveying mechanism, and the static sealing ring is connected to the static sealing support; The mounting bracket is connected to the frame, the cylinder body of the clamping cylinder is connected to the mounting bracket, the piston rod of the clamping cylinder is connected to the static sealing bracket, the telescopic joint is connected between the sealing bracket and the mounting bracket, the support roller is disposed on the mounting bracket, and the static sealing bracket is provided with a support plate that is slidably connected to the support roller.

8. The spiral conveying sealing mechanism for the hydrogen fluoride rotary reactor according to claim 5, characterized in that, The box lid is equipped with an observation hole cover.

9. The spiral conveying sealing mechanism for the hydrogen fluoride rotary reactor according to claim 8, characterized in that, A baffle plate is welded below the observation hole cover, and the lower surface of the baffle plate is flush with the lower surface of the box cover.

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