Hydrogen fluoride preparation tailing acid gas adsorption device and adsorption method thereof

Abstract

The invention relates to the technical field of tail gas treatment, in particular to a hydrogen fluoride preparation tailing acid gas adsorption device and an adsorption method.The hydrogen fluoride preparation tailing acid gas adsorption device comprises a treatment box, a reaction cavity and an adsorption cavity are formed in the treatment box, and a reaction barrel is fixedly installed in the reaction cavity; a stirring shaft is rotatably mounted on the inner wall of the top of the adsorption cavity, a driving motor is arranged at the top of the treatment box, an output shaft of the driving motor extends into the treatment box and is connected with the top end of the stirring shaft, and the bottom end of the stirring shaft extends into the reaction barrel and is fixedly provided with a rotating plate; a rectangular cavity is formed in the rotating plate, an L-shaped hole is formed in the inner wall of the side portion of the rectangular cavity, and a first L-shaped connecting pipe is fixedly arranged in the L-shaped hole. Waste gas can be uniformly guided into all positions in the reaction barrel, the uniform gas guiding function is achieved, a neutralizing agent can make full contact with the waste gas conveniently, and the waste gas treatment function is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of tail gas treatment, and more specifically to a device for adsorbing acid gas from tailings prepared from hydrogen fluoride and an adsorption method thereof. Background Art

[0002] Nowadays, many harmful substances are often produced in industrial production. These harmful substances are usually discharged with exhaust gas, which not only seriously endangers people's health, but also causes damage to the surrounding environment.

[0003] The tailings from the process of preparing hydrogen fluoride in the inorganic fluoride salt industry contain hydrogen fluoride gas and sulfuric acid, which have a pungent odor and cause pollution to the surrounding green vegetation and on-site environment.

[0004] Usually, the tailings acid gas treatment is mostly carried out by catalytic combustion and alkaline water spray tower washing and neutralization. However, the equipment cost required for the catalytic combustion method is relatively high, which is difficult to meet the needs of small enterprises; when washing and neutralizing with alkaline water spray tower, the tail gas generated is collected and neutralized at the end, otherwise the tail gas will leak, causing varying degrees of impact on the surrounding on-site environment, and it is easy to cause environmental pollution problems. The environment at the work site of employees is poor, and the labor intensity is increased, which brings great safety and environmental protection problems to the company. However, in actual use, the treatment by the neutralization method often has the following problems: 1. When the tail gas is introduced, it cannot be introduced into the reaction container evenly, so that the tail gas cannot be evenly contacted with the neutralizer after introduction, resulting in poor neutralization effect. In addition, bubbles will be generated when the exhaust gas is introduced. If the bubbles cannot be broken in the neutralizer in time, the exhaust gas will be directly discharged to the outside without neutralization treatment, causing environmental pollution; Second, when the exhaust gas is introduced, it is mixed with fine particles. If it cannot be filtered in time, the fine particles will adsorb the neutralizer, making the neutralizer unable to be fully utilized. After filtering, the fine particles will cause the filter components to be blocked, which will reduce the air intake effect. There is no better solution; 3. After the exhaust gas is neutralized, the harmful gas can be adsorbed by the adsorption material. However, during the adsorption process, the adsorption material is always in a static state, and its surface cannot completely contact with the harmful gas, resulting in poor adsorption effect. Summary of the invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides an acid gas adsorption device for tailings from hydrogen fluoride preparation and an adsorption method thereof to solve the problems existing in the above-mentioned background technology.

[0006] The present invention provides the following technical solutions: A device for adsorbing acid gas from tailings of hydrogen fluoride, comprising a treatment box, wherein a reaction chamber and an adsorption chamber are provided in the treatment box, a reaction barrel is fixedly installed in the reaction chamber, a stirring shaft is rotatably installed on the top inner wall of the adsorption chamber, a driving motor is provided on the top of the treatment box, an output shaft of the driving motor extends into the treatment box and is connected to the top end of the stirring shaft, a bottom end of the stirring shaft extends into the reaction barrel and a rotating plate is fixedly installed, a rectangular chamber is provided in the rotating plate, an L-shaped hole is provided on the side inner wall of the rectangular chamber, a first L-shaped connecting pipe is fixedly installed in the L-shaped hole, an air intake mechanism connected to the first L-shaped connecting pipe is provided on the side of the treatment box, a rectangular hole is provided at the bottom of the rectangular chamber, a dispersing head is slidably installed in the rectangular hole, and the dispersing head is connected to the first L-shaped through a telescopic mechanism. The ends of the connecting pipes are connected, a stirring mechanism is fixedly arranged on the peripheral outer wall of the stirring shaft, and the stirring mechanism is connected to the telescopic mechanism, a plurality of air holes are opened between the reaction chamber and the adsorption chamber, an adsorption frame is fixedly installed in the adsorption chamber, the stirring shaft is rotatably connected to the adsorption frame, a plurality of stirring rods are fixedly installed on the peripheral outer wall of the stirring shaft, and a plurality of stirring rods are all arranged in the adsorption frame, a side block is fixedly installed on the side of the processing box, a mounting box is fixedly installed on the bottom of the side block, a knocking ball is arranged on the bottom of the mounting box, the knocking ball and the stirring shaft are transmission-connected by an extrusion transmission mechanism, an exhaust pipe is arranged on the top inner wall of the adsorption chamber, a fixing plate is fixedly installed on the inner wall of the reaction barrel, and a cleaning mechanism transmission-connected to the first L-shaped connecting pipe is arranged at the bottom of the fixing plate.

[0007] The air intake mechanism includes an L-shaped air intake pipe and a straight air intake pipe. The side of the processing box and the inner wall of the peripheral side of the reaction barrel are jointly provided with an air intake hole. The L-shaped air intake pipe is fixedly arranged in the air intake hole. The L-shaped air intake pipe and the straight air intake pipe are connected through a filter assembly. A boost pump is arranged on the straight air intake pipe. The other end of the L-shaped air intake pipe extends into the reaction barrel and is rotatably connected to the first L-shaped connecting pipe.

[0008] The filter assembly includes a filter tube, both ends of which are fixedly connected to the ends of the L-shaped air inlet pipe and the straight air inlet pipe respectively, a filter plate is fixedly installed on the inner wall of the circumference of the filter tube, a collecting tube is fixedly installed on the side wall of the filter tube, the collecting tube is arranged on a side of the filter plate close to the straight air inlet pipe, and a collecting box is threadedly installed on the bottom end of the collecting tube.

[0009] The telescopic mechanism includes a telescopic air pipe, one end of which is fixedly installed on the end of the first L-shaped connecting pipe, and the other end is fixedly installed with a second L-shaped connecting pipe, the other end of the second L-shaped connecting pipe is fixedly connected to the dispersing head, a moving plate is fixedly installed on the outer wall of the telescopic air pipe, and a reciprocating moving component for controlling the moving plate to slide in the rectangular cavity is arranged in the rectangular cavity.

[0010] The reciprocating assembly includes a linkage shaft, both ends of which are rotatably mounted on the upper and lower inner walls of the rectangular cavity respectively, the outer wall of the linkage shaft is fixedly sleeved with a linkage gear, an escape groove is provided on the peripheral outer wall of the rotating plate, an annular inner rack is fixedly mounted on the peripheral inner wall of the reaction barrel, the annular inner rack is arranged in the escape groove and meshed with the linkage gear, an active bevel gear is fixedly sleeved on the peripheral outer wall of the linkage shaft, two square blocks are fixedly mounted on the top inner wall of the rectangular cavity, reciprocating screws are rotatably mounted on the two square blocks, one end of the reciprocating screw is fixedly sleeved with a driven bevel gear, the driven bevel gear is meshed with the active bevel gear, and the moving plate is threadedly mounted on the reciprocating screw.

[0011] The stirring mechanism includes two stirring plates, and the two stirring plates are fixedly sleeved on the peripheral outer wall of the stirring shaft. The tops of the two stirring plates are provided with square sliding holes, and square sliders are slidably installed in the four square sliding holes. The two square sliders on the same stirring plate are connected through a linkage component. The four square sliders are provided with connecting holes, and a connecting shaft is fixedly installed in the two connecting holes on the same side. A plurality of stirring blades are fixedly sleeved on the peripheral outer walls of the two connecting shafts. An avoidance hole is provided on the top inner wall of the rectangular cavity, and the bottom end of one of the connecting shafts extends The linkage assembly includes a moving gear, a linkage groove is provided on the stirring plate, the linkage groove is located at the lower part of the two square sliding holes, a mounting shaft is rotatably installed on the inner wall of the side of the linkage groove, the moving gear is fixedly sleeved on the outer wall of the circumference of the mounting shaft, two limiting shafts are fixedly installed on the inner wall of the linkage groove, an upper rack and a lower rack are respectively slidably installed on the two limiting shafts, the upper rack and the lower rack are both meshed with the moving gear, and the upper rack and the lower rack are respectively fixedly connected to the two square sliding blocks located on the same stirring plate.

[0012] The extrusion transmission mechanism includes a spur rack, a moving cavity is opened in the side block, a guide shaft is fixedly installed on the inner wall of the moving cavity, the spur rack is slidably installed on the guide shaft, a return spring is sleeved on the peripheral outer wall of the guide shaft, an extrusion hole is jointly opened in the side wall of the moving cavity and the side wall of the adsorption cavity, an extrusion shaft is slidably installed in the extrusion hole, one end of the extrusion shaft is fixedly connected to the spur rack, the other end of the extrusion shaft extends into the adsorption cavity and is fixedly provided with an arc extrusion plate, and a rotating extrusion plate is fixedly installed on the peripheral outer wall of the stirring shaft, and the rotating extrusion plate can push the arc extrusion plate.

[0013] The extrusion transmission mechanism also includes a cam, a lower rotating shaft is rotatably installed inside the installation box, an upper rotating shaft is rotatably installed inside the moving chamber, a rotating gear is fixedly sleeved on the peripheral outer wall of the upper rotating shaft, and the rotating gear is meshed and installed with the spur rack, the bottom wall of the side block and the top wall of the installation box are jointly provided with a square hole, the peripheral outer walls of the lower rotating shaft and the upper rotating shaft are both fixedly sleeved with sprockets, and chains are meshed and installed on the two sprockets, the cam is fixedly sleeved on the peripheral outer wall of the lower rotating shaft, and the bottom of the installation box A circular hole is opened on the wall, and a telescopic sleeve is slidably installed in the circular hole. A lifting plate is fixedly installed on the top of the telescopic sleeve. The cam can push the lifting plate to move up and down in the installation box. A compression spring is sleeved on the peripheral outer wall of the telescopic sleeve, and the compression spring is arranged between the lifting plate and the bottom wall of the installation box. A telescopic rod is slidably installed in the telescopic sleeve, and the knocking ball is fixedly arranged at the bottom end of the telescopic rod. An avoidance spring is fixedly arranged on the top of the telescopic rod, and the top of the avoidance spring is fixedly installed on the top inner wall of the telescopic sleeve.

[0014] The cleaning mechanism includes a rotating rod, the top end of the rotating rod is rotatably mounted on the bottom of the fixed plate, the bottom end of the rotating rod is rotatably mounted on the inner wall of the bottom end of the reaction barrel, the peripheral outer wall of the rotating rod is fixedly connected with a cleaning brush adapted to the inner wall of the bottom end of the reaction barrel, the fixed plate is provided with a rotating hole, a circular shaft is rotatably mounted in the rotating hole, the peripheral outer wall of the circular shaft and the peripheral outer wall of the first L-shaped connecting tube are both fixedly sleeved with a first transmission gear, and the two first transmission gears are meshed and installed, the peripheral outer wall of the circular shaft and the peripheral outer wall of the rotating rod are both fixedly sleeved with a second transmission gear, and the two second transmission gears are meshed and installed.

[0015] An adsorption method for a tailing acid gas adsorption device for preparing hydrogen fluoride comprises the following steps: S1. Introduce the neutralizer into the reaction barrel, introduce the exhaust gas into the reaction barrel through the air intake mechanism, start the drive motor to drive the stirring shaft to rotate, thereby driving the rotating plate, the telescopic mechanism, and the dispersing head to rotate synchronously. Under the action of the telescopic mechanism, the exhaust gas is evenly introduced into the reaction barrel so that it is fully in contact with the neutralizer; S2. When the stirring shaft rotates, it can drive the stirring mechanism to rotate synchronously. Through the cooperation of the stirring mechanism and the telescopic mechanism, the neutralizer is stirred, so as to break the bubbles generated when the exhaust gas is introduced, preventing the exhaust gas from directly entering the adsorption chamber without being neutralized; S3. When the waste gas after neutralization treatment enters the adsorption chamber through multiple pores, the adsorption material in the adsorption frame further adsorbs the harmful gas, so that it meets the emission standards. When the stirring shaft rotates, it drives multiple stirring rods to rotate, stirring the adsorption material so that its surface is fully in contact with the harmful gas to achieve the adsorption function; S4. When the agitator shaft is rotating, the extrusion transmission mechanism can drive the knocking ball to move up and down to clean the filter assembly to prevent small particles from causing blockage and affecting the air intake effect.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention drives the rotating plate to rotate through the stirring shaft, thereby driving the linkage gear to rotate synchronously and mesh with the annular inner rack, so that the linkage gear, the linkage shaft, and the active bevel gear rotate synchronously, and the meshing action of the active bevel gear and the driven bevel gear drives the reciprocating screw to realize the rotation function. When the reciprocating screw rotates, the movable plate is driven to reciprocate horizontally through the action of the thread. When the movable plate reciprocates, it drives the telescopic air pipe to reciprocate and retract, so that the second L-shaped connecting pipe and the dispersion head reciprocate horizontally, thereby evenly introducing the exhaust gas to various positions in the reaction barrel, realizing the uniform gas guide function, facilitating the full contact between the neutralizer and the exhaust gas, and realizing the exhaust gas treatment function.

[0017] 2. The present invention drives the rotating plate and the two stirring plates to rotate synchronously when the stirring shaft rotates. When the moving plate reciprocates horizontally, it can drive one of the connecting shafts to move synchronously, thereby driving the two square sliders to reciprocate horizontally synchronously. When the square slider is moving, it can drive the upper racks on both sides to move synchronously. Through the meshing action with the moving gear, the lower rack and the other square slider located in the same stirring plate are driven to move synchronously in the opposite direction with the upper rack, so that the two connecting shafts and multiple stirring blades can reciprocate synchronously. With the rotation function of the stirring plate, the neutralizer can be stirred, so that the exhaust gas and the neutralizer are in contact more fully, preventing the exhaust gas from generating bubbles when it is introduced, thereby reducing the treatment effect.

[0018] 3. The present invention filters fine particles during air intake through a filter plate. When the stirring shaft rotates, it can drive the rotating extrusion plate to rotate, and the arc extrusion plate is extruded by the rotating extrusion plate. When the arc extrusion plate is extruded, it drives the extrusion shaft and the spur rack to move synchronously. When the spur rack moves horizontally, it meshes with the rotating gear, so that the upper rotating shaft rotates, and the lower rotating shaft and the cam are driven to rotate synchronously under the meshing action of the two sprockets and the chain. The lifting plate is continuously squeezed by the rotation of the cam, thereby driving the telescopic sleeve, the telescopic rod, and the knocking ball to continuously move up and down, knocking the filter tube, and the fine particles on the surface of the filter plate fall into the collection tube and the collection box for collection through vibration.

[0019] 4. The present invention adsorbs harmful gases in the exhaust gas through the adsorption material in the adsorption frame. When the stirring shaft is rotating, the adsorption material can be stirred by the rotation of multiple stirring rods, thereby further improving the adsorption effect. After the treatment is completed, the gas is discharged through the exhaust pipe and the gas is detected by the PH detector. When the emission standard is met, the gas is directly discharged. When the PH detector detects that the gas does not meet the standard, the exhaust valve can be closed and the circulation valve can be opened. The gas is sucked into the reaction barrel again through the circulation pipe by the booster pump and re-processed to meet the emission standard. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 The partial cutaway structure of the present invention is shown in FIG. Figure 1 ; Figure 3 for Figure 2 The enlarged structural diagram at A in the middle; Figure 4 The partial cutaway structure of the present invention is shown in FIG. Figure 2 ; Figure 5 for Figure 4 The enlarged structural diagram at B in the middle; Figure 6 The partial cutaway structure of the present invention is shown in FIG. Figure 3 ; Figure 7 for Figure 6 The enlarged structural diagram at C in the middle; Figure 8 The partial cutaway structure of the present invention is shown in FIG. Figure 4 ; Fig. 9 for Figure 8 The enlarged structural diagram at D in the middle; Fig.10 The partial cutaway structure of the present invention is shown in FIG. Figure 5 ; Fig.11 for Fig.10 The enlarged structural diagram at E in the middle; Fig.12 It is a schematic diagram of the partially cutaway and enlarged structure of the telescopic sleeve in the present invention.

[0021] The accompanying drawings are marked as follows: 1. treatment box; 2. reaction barrel; 3. stirring shaft; 4. driving motor; 5. rotating plate; 6. L-shaped air inlet pipe; 7. filter pipe; 8. straight air inlet pipe; 9. booster pump; 10. filter plate; 11. collecting pipe; 12. collecting box; 13. first L-shaped connecting pipe; 14. dispersion head; 15. telescopic air pipe; 16. second L-shaped connecting pipe; 17. moving plate; 18. linkage shaft; 19. linkage gear; 20. annular inner rack; 21. active bevel gear; 22. square block; 23. reciprocating screw; 24. driven bevel gear; 25. stirring plate; 26. square slider; 27. moving gear; 28. limiting shaft; 29. ​​upper rack; 30. lower rack; 31. connecting shaft; 32. stirring blade; 33. air hole; 34. adsorption frame; 35. Stirring rod; 36. Side block; 37. Straight rack; 38. Guide shaft; 39. Return spring; 40. Extrusion shaft; 41. Arc extrusion plate; 42. Rotating extrusion plate; 43. Mounting box; 44. Lower rotating shaft; 45. Upper rotating shaft; 46. Rotating gear; 47. Sprocket; 48. Chain; 49. Lifting plate; 50. Cam; 51. Telescopic sleeve; 52. Compression spring; 53. Telescopic rod; 54. Avoidance spring; 55. Knocking ball; 56. Exhaust pipe; 57. PH detector; 59. Exhaust valve; 60. Circulation pipe; 61. Circulation valve; 62. Fixed plate; 63. Rotating rod; 64. Cleaning brush; 65. Round shaft; 66. First transmission gear; 67. Second transmission gear; 68. Rectangular cavity; 69. Rectangular hole; 70. Square sliding hole. DETAILED DESCRIPTION

[0022] The present invention is further described below in conjunction with specific embodiments. However, people familiar with the art should understand that the detailed description given here in conjunction with the drawings is for better explanation, and the structure of the present invention necessarily exceeds these limited embodiments. For some equivalent replacement schemes or common means, they are no longer described in detail herein, but still belong to the scope of protection of the present application.

[0023] Figure 1-Figure 12 The best embodiment of the present invention is shown below in conjunction with the attached Figure 1-Figure 12 The present invention is further described.

[0024] A device for adsorbing tailing acid gas from hydrogen fluoride, comprising a treatment box 1, wherein a reaction chamber and an adsorption chamber are provided in the treatment box 1. Specifically, a box door is hingedly provided on the side of the treatment box 1, wherein the box door corresponds to the position of the adsorption chamber, an observation hole is provided on the side of the box door, and an observation glass is provided in the observation hole. A reaction barrel 2 is fixedly installed in the reaction chamber. Specifically, a liquid inlet pipe and a liquid discharge pipe are provided on the side of the reaction barrel 2, wherein the ends of the liquid inlet pipe and the liquid discharge pipe extend to the outside of the treatment box 1 and are respectively provided with a feed valve and a liquid discharge valve, and a valve adapted to the reaction barrel 2 is provided on the side of the treatment box 1. The liquid level meter is provided, a stirring shaft 3 is rotatably installed on the top inner wall of the adsorption chamber, a driving motor 4 is provided on the top of the processing box 1, specifically, the driving motor 4 is controlled by a PLC controller, an output shaft of the driving motor 4 extends into the processing box 1 and is connected to the top of the stirring shaft 3, the bottom end of the stirring shaft 3 extends into the reaction barrel 2 and a rotating plate 5 is fixedly installed, a rectangular cavity 68 is provided in the rotating plate 5, an L-shaped hole is provided on the side inner wall of the rectangular cavity 68, a first L-shaped connecting pipe 13 is fixedly provided in the L-shaped hole, and a connecting pipe 13 connected to the first L-shaped connecting pipe 13 is fixedly provided on the side of the processing box 1. The bottom of the rectangular cavity 68 is provided with a rectangular hole 69, and a dispersing head 14 is slidably installed in the rectangular hole 69. The dispersing head 14 is connected to the end of the first L-shaped connecting tube 13 through a telescopic mechanism. A stirring mechanism is fixedly provided on the peripheral outer wall of the stirring shaft 3, and the stirring mechanism is connected to the telescopic mechanism. A plurality of air holes 33 are provided between the reaction chamber and the adsorption chamber, and an adsorption frame 34 is fixedly installed in the adsorption chamber. The stirring shaft 3 is rotatably connected to the adsorption frame 34, and a plurality of stirring rods 35 are fixedly installed on the peripheral outer wall of the stirring shaft 3. Each stirring rod 35 is arranged in the adsorption frame 34, a side block 36 is fixedly installed on the side of the processing box 1, a mounting box 43 is fixedly installed on the bottom of the side block 36, a knocking ball 55 is arranged at the bottom of the mounting box 43, the knocking ball 55 is connected to the stirring shaft 3 through an extrusion transmission mechanism, an exhaust pipe 56 is arranged on the top inner wall of the adsorption chamber, a fixing plate 62 is fixedly installed on the inner wall of the reaction barrel 2, a cleaning mechanism connected to the first L-shaped connecting pipe 13 is arranged at the bottom of the fixing plate 62, and specifically, there is a gap between the fixing plate 62 and the reaction barrel 2. The fixing plate 62 is provided with a channel for liquid circulation.

[0025] In order to be able to introduce the exhaust gas into the interior of the reaction barrel 2, the following features are also specifically provided: The air intake mechanism includes an L-shaped air intake pipe 6 and a straight air intake pipe 8. The side of the processing box 1 and the inner wall of the peripheral side of the reaction barrel 2 are jointly provided with an air intake hole. The L-shaped air intake pipe 6 is fixedly arranged in the air intake hole. The L-shaped air intake pipe 6 and the straight air intake pipe 8 are connected through a filter assembly. A booster pump 9 is arranged on the straight air intake pipe 8. Specifically, the booster pump 9 is controlled by a PLC controller. The other end of the L-shaped air intake pipe 6 extends into the reaction barrel 2 and is rotatably connected to the first L-shaped connecting pipe 13. The exhaust gas is pressurized by the booster pump 9 so that it can enter the interior of the reaction barrel 2 through the straight air intake pipe 8 and the L-shaped air intake pipe 6 to realize the air intake function.

[0026] In order to filter fine particles in the exhaust gas during the intake process, the following features are also set: The filter assembly includes a filter tube 7, both ends of which are fixedly connected to the ends of the L-shaped air inlet pipe 6 and the straight air inlet pipe 8 respectively, and a filter plate 10 is fixedly installed on the inner wall of the circumference of the filter tube 7. A collecting tube 11 is fixedly installed on the side wall of the filter tube 7. The collecting tube 11 is arranged on a side of the filter plate 10 close to the straight air inlet pipe 8, and a collecting box 12 is threadedly installed on the bottom end of the collecting tube 11. Through the setting of the filter plate 10, fine particles in the exhaust gas can be filtered during the air intake process to prevent them from entering the reaction barrel 2, and through the setting of the collecting tube 11 and the collecting box 12, fine particles can be collected and processed.

[0027] In order to achieve uniform air intake, the following features are also set: The telescopic mechanism includes a telescopic air pipe 15, one end of which is fixedly installed on the end of the first L-shaped connecting pipe 13, and the other end of the telescopic air pipe 15 is fixedly installed with a second L-shaped connecting pipe 16, and the other end of the second L-shaped connecting pipe 16 is fixedly connected to the dispersion head 14. A moving plate 17 is fixedly installed on the peripheral outer wall of the telescopic air pipe 15, and a reciprocating moving component for controlling the moving plate 17 to slide in the rectangular cavity 68 is provided in the rectangular cavity 68. Through the setting of the telescopic air pipe 15, the dispersion head 14 can realize the horizontal reciprocating motion function under the joint action of the reciprocating moving component and the telescopic air pipe 15, and cooperate with the rotation of the rotating plate 5 to evenly introduce the exhaust gas into the reaction barrel 2 so that it can fully contact with the neutralizer.

[0028] In order to drive the dispersing head 14 to achieve horizontal reciprocating motion, the following features are also specifically provided: The reciprocating assembly includes a linkage shaft 18, the two ends of which are rotatably mounted on the upper and lower inner walls of the rectangular cavity 68, respectively, the outer wall of the linkage shaft 18 is fixedly sleeved with a linkage gear 19, the outer wall of the rotating plate 5 is provided with an escape groove, the inner wall of the reaction barrel 2 is fixedly mounted with an annular inner rack 20, the annular inner rack 20 is arranged in the escape groove and meshed with the linkage gear 19, the outer wall of the linkage shaft 18 is fixedly sleeved with an active bevel gear 21, the top inner wall of the rectangular cavity 68 is fixedly mounted with two square blocks 22, and the sides of the two square blocks 22 are rotatably mounted with reciprocating screws 2 3. The other end of the reciprocating screw 23 passes through another square block 22 and is fixedly sleeved with a driven bevel gear 24. The driven bevel gear 24 is meshed and installed with the active bevel gear 21. The moving plate 17 is threadedly installed on the reciprocating screw 23. In this way, when the rotating plate 5 rotates, the linkage gear 19 is driven to rotate synchronously, so that it meshes with the annular inner rack 20, thereby rotating the linkage shaft 18. Through the meshing action of the active bevel gear 21 and the driven bevel gear 24, the reciprocating screw 23 can be driven to realize the rotation function, thereby driving the moving plate 17 and the dispersion head 14 to reciprocate horizontally through the action of the thread.

[0029] In order to break the bubbles in the neutralizer, the following features are specifically set: The stirring mechanism includes two stirring plates 25, and the two stirring plates 25 are fixedly sleeved on the peripheral outer walls of the stirring shaft 3. The tops of the two stirring plates 25 are provided with square sliding holes 70, and square sliders 26 are slidably installed in the four square sliding holes 70. The two square sliders 26 located on the same stirring plate 25 are connected by a linkage component. The four square sliders 26 are provided with connecting holes, and a connecting shaft 31 is fixedly installed in the two connecting holes on the same side. The peripheral outer walls of the two connecting shafts 31 are fixedly sleeved with a plurality of stirring blades 32. The top inner wall of the rectangular cavity 68 is provided with an avoidance hole, and the bottom end of one of the connecting shafts 31 extends into the avoidance hole and is fixedly connected to the top of the moving plate 17. The linkage component includes a moving gear 27, and the stirring plate 25 is provided with a linkage groove, which is located at the lower part of the two square sliding holes 70. The side inner wall of the linkage groove is rotatably installed with a mounting shaft, and the moving gear 27 is fixedly sleeved on the peripheral outer wall of the mounting shaft. The inner wall of the linkage groove is jointly fixedly installed with two The limiting shaft 28 has an upper rack 29 and a lower rack 30 slidably mounted on the two limiting shafts 28. The upper rack 29 and the lower rack 30 are meshed with the moving gear 27. The upper rack 29 and the lower rack 30 are respectively fixedly connected to the two square sliders 26 located on the same stirring plate 25. With this arrangement, the two stirring plates 25 can be driven to rotate synchronously through the rotation of the stirring shaft 3, and the multiple stirring blades 32 can be driven to move horizontally through the cooperation of the connecting shaft 31 and multiple linkage components, thereby improving the stirring effect on the neutralizer, breaking the bubbles in the neutralizer, and greatly improving the neutralization effect. In addition, by arranging the upper rack 29, the lower rack 30 and the moving gear 27, when the square slider 26 located on the left side of the stirring plate 25 moves horizontally in the square slide hole 70, the upper rack 29 can be driven to move synchronously, and then the square slider 26 on the right side of the same stirring plate 25 can be driven to move synchronously toward or away from each other through the meshing action of the upper rack 29, the lower rack 30 and the moving gear 27.

[0030] In order to enable the stirring shaft 3 to drive the spur rack 37 to move horizontally, the following features are also specifically provided: The extrusion transmission mechanism includes a spur rack 37, a moving cavity is opened in the side block 36, a guide shaft 38 is fixedly installed on the inner wall of the moving cavity, the spur rack 37 is slidably installed on the guide shaft 38, and a reset spring 39 is sleeved on the outer wall of the guide shaft 38. The side wall of the moving cavity and the side wall of the adsorption cavity are jointly opened with an extrusion hole, and an extrusion shaft 40 is slidably installed in the extrusion hole. One end of the extrusion shaft 40 is fixedly connected to the side of the spur rack 37, and the other end of the extrusion shaft 40 extends into the adsorption chamber and is fixedly provided with an arc-shaped extrusion plate 41. A rotating extrusion plate 42 is fixedly installed on the outer wall of the surrounding side of the stirring shaft 3. The rotating extrusion plate 42 can push the arc-shaped extrusion plate 41, and when the stirring shaft 3 rotates, the rotating extrusion plate 42 is driven to rotate synchronously, so that it contacts the outer surface of the arc-shaped extrusion plate 41, and the extrusion shaft 40 and the spur rack 37 are driven by the extrusion action to realize the horizontal movement function.

[0031] In order to enable the spur rack 37 to drive the striking ball 55 to move up and down during horizontal movement, the following features are also specifically provided: The extrusion transmission mechanism also includes a cam 50. A lower rotating shaft 44 is rotatably installed inside the installation box 43. An upper rotating shaft 45 is rotatably installed inside the moving chamber. A rotating gear 46 is fixedly sleeved on the peripheral outer wall of the upper rotating shaft 45. The rotating gear 46 is meshed and installed with the spur rack 37. The bottom wall of the side block 36 and the top wall of the installation box 43 are jointly provided with a square hole. The peripheral outer walls of the lower rotating shaft 44 and the upper rotating shaft 45 are both fixedly sleeved with sprockets 47. Chains 48 are meshed and installed on the two sprockets 47. The cam 50 is fixedly sleeved on the peripheral outer wall of the lower rotating shaft 44. A circular hole is opened on the bottom wall of the installation box 43. A telescopic sleeve 51 is slidably installed in the circular hole. A lifting plate 49 is fixedly installed on the top of the telescopic sleeve 51. The cam 50 can push the lifting plate 49 in the installation box 43. Moving up and down, a compression spring 52 is sleeved on the outer wall of the circumference of the telescopic sleeve 51, and the compression spring 52 is arranged between the lifting plate 49 and the bottom wall of the installation box 43. A telescopic rod 53 is slidably installed in the telescopic sleeve 51, and a knocking ball 55 is fixedly arranged at the bottom end of the telescopic rod 53. A avoidance spring 54 is fixedly arranged at the top of the telescopic rod 53. The top of the avoidance spring 54 is fixedly installed on the inner wall of the top end of the telescopic sleeve 51. Through the horizontal movement of the spur rack 37, it can drive the upper rotating shaft 45 to rotate through the meshing action of the sprocket 47 and the chain 48, and drive the lower rotating shaft 44 and the cam 50 to rotate synchronously under the meshing action of the two sprockets 47 and the chain 48. Through the squeezing of the lifting plate 49 by the cam 50, the knocking ball 55 is lifted and lowered reciprocatingly to knock on the surface of the filter tube 7.

[0032] In order to clean the sediment at the bottom of the reaction barrel 2 during the drainage, the following features are also specifically provided: The cleaning mechanism includes a rotating rod 63, the top of which is rotatably mounted on the bottom of the fixed plate 62, the bottom of which is rotatably mounted on the inner wall of the bottom end of the reaction barrel 2, the outer wall of the peripheral side of the rotating rod 63 is fixedly connected with a cleaning brush 64 adapted to the inner wall of the bottom end of the reaction barrel 2, a rotating hole is provided at the bottom of the fixed plate 62, a round shaft 65 is rotatably mounted in the rotating hole, the outer wall of the peripheral side of the round shaft 65 and the outer wall of the peripheral side of the first L-shaped connecting tube 13 are both fixedly sleeved with a first transmission gear 66, and the two first transmission gears 66 are meshed and installed. The outer wall of the circumferential side of the circular shaft 65 and the outer wall of the circumferential side of the rotating rod 63 are fixedly sleeved with a second transmission gear 67. The two second transmission gears 67 are meshingly installed. The rotating plate 5 and the first L-shaped connecting pipe 13 are driven to rotate synchronously through the rotation of the stirring shaft 3. The circular shaft 65 can be driven to rotate synchronously under the action of the two first transmission gears 66, and the rotating rod 63 and the cleaning brush 64 can be driven to rotate under the meshing action of the two second transmission gears 67 to clean the bottom sediment, so that the sediment is discharged synchronously from the outside of the device during the drainage process.

[0033] In order to treat the exhaust gas that does not meet the emission standards, the following features are also set: Specifically, a PH detector 57 is provided in the exhaust pipe 56 for detecting the pH value of the exhaust gas to determine whether it meets the emission standards, and an exhaust valve 59 is provided at the top of the exhaust pipe 56. A circulation pipe 60 is provided between the exhaust pipe 56 and the straight intake pipe 8, and a circulation valve 61 is provided on the circulation pipe 60. When the PH detector 57 detects that the gas does not meet the standards, the exhaust valve 59 can be closed and the circulation valve 61 can be opened. The gas is sucked into the reaction barrel 2 again through the circulation pipe 60 by the booster pump 9, and re-processed to meet the emission standards. The PH detector 57, the exhaust valve 59, and the circulation valve 61 are all controlled by the PLC controller, and the exhaust valve 59 and the circulation valve 61 are both high-temperature resistant valves to prevent high temperature from affecting their sealing.

[0034] An adsorption method for a tailing acid gas adsorption device for preparing hydrogen fluoride comprises the following steps: S1. Introduce the neutralizer into the reaction barrel 2, introduce the exhaust gas into the reaction barrel 2 through the air intake mechanism, start the drive motor 4 to drive the stirring shaft 3 to rotate, thereby driving the rotating plate 5, the telescopic mechanism, and the dispersing head 14 to rotate synchronously. Under the action of the telescopic mechanism, the exhaust gas is evenly introduced into the reaction barrel 2 so that it is fully in contact with the neutralizer; When S2 and the stirring shaft 3 rotate, they can drive the stirring mechanism to rotate synchronously. Through the cooperation of the stirring mechanism and the telescopic mechanism, the neutralizer is stirred, so as to break the bubbles generated when the exhaust gas is introduced, and prevent the exhaust gas from directly entering the adsorption chamber without being neutralized. S3. When the waste gas after neutralization enters the adsorption chamber through the multiple air holes 33, the adsorption material in the adsorption frame 34 further adsorbs the harmful gas, so that it meets the emission standard. When the stirring shaft 3 rotates, it drives the multiple stirring rods 35 to rotate, stirring the adsorption material so that its surface is fully in contact with the harmful gas to achieve the adsorption function; S4. When the stirring shaft 3 is rotating, the knocking ball 55 can be driven to rise and fall reciprocally under the action of the extrusion transmission mechanism to clean the filter assembly to prevent small particles from causing blockage and affecting the air intake effect.

[0035] Specifically, the working principle and use process of the present invention are as follows: when in use, open the feed valve, input the neutralizer into the reaction barrel 2 through the liquid inlet pipe, start the booster pump 9, introduce the exhaust gas into the reaction barrel 2 through the straight air inlet pipe 8 and the L-shaped air inlet pipe 6, start the drive motor 4 to drive the stirring shaft 3 to rotate, and drive the rotating plate 5 to rotate through the stirring shaft 3, thereby driving the linkage gear 19 to rotate synchronously and mesh with the annular inner rack 20, so that the linkage gear 19, the linkage shaft 18, and the active bevel gear 21 rotate synchronously, and through the meshing action of the active bevel gear 21 and the driven bevel gear 24, drive the reciprocating screw 23 to realize the rotation function. When the reciprocating screw 23 rotates, the movable plate 17 is driven to reciprocate horizontally through the thread action. When the movable plate 17 reciprocates, it drives the telescopic air pipe 15 to reciprocate and retract, so that the second L-shaped connecting pipe 16 and the dispersion head 14 reciprocate horizontally, thereby uniformly introducing the exhaust gas into various positions in the reaction barrel 2, realizing the uniform gas guide function, facilitating the neutralizer to fully contact with the exhaust gas, and realizing the exhaust gas treatment function.

[0036] When the stirring shaft 3 is rotating, it can drive the rotating plate 5 and the two stirring plates 25 to rotate synchronously. When the moving plate 17 is reciprocating horizontally, it can drive one of the connecting shafts 31 to move synchronously, thereby driving the two square sliders 26 to reciprocate horizontally synchronously. When the square slider 26 is moving, it can drive the upper racks 29 on both sides thereof to move synchronously. Through the meshing action with the moving gear 27, the lower rack 30 and the other square slider 26 located in the same stirring plate 25 are driven to move synchronously in the opposite direction with the upper rack 29, so that the two connecting shafts 31 and the plurality of stirring blades 32 can reciprocate synchronously. With the rotation function of the stirring plate 25, the neutralizer can be stirred, so that the exhaust gas and the neutralizer are in contact more fully.

[0037] When the exhaust gas is introduced, the fine particles mixed in the exhaust gas will be filtered through the filter plate 10 to prevent them from entering the reaction barrel 2 to adsorb the neutralizer, resulting in the neutralizer cannot be fully utilized. However, in the filtering process, the fine particles will cause the filter plate 10 to be blocked, thereby reducing the air intake effect. When the stirring shaft 3 is rotating, it can drive the rotating extrusion plate 42 to rotate, and the arc extrusion plate 41 is squeezed by the rotating extrusion plate 42. When the arc extrusion plate 41 is squeezed, it drives the extrusion shaft 40 and the spur rack 37 to move synchronously. When the spur rack 37 moves horizontally, it meshes with the rotating gear 46, so that the upper rotating shaft 45 rotates, and the lower rotating shaft is driven by the meshing action of the two sprockets 47 and the chain 48. 44. The cam 50 rotates synchronously, and the lifting plate 49 is continuously squeezed by the rotation of the cam 50, thereby driving the telescopic sleeve 51, the telescopic rod 53, and the knocking ball 55 to continuously move up and down, knocking the filter tube 7, and causing the fine particles on the surface of the filter plate 10 to fall into the collection tube 11 and the collection box 12 for collection through vibration. When the cam 50 releases the squeezing effect on the lifting plate 49, the elastic effect of the compression spring 52 and the avoidance spring 54 can drive the lifting plate 49 and the knocking ball 55 to achieve the reset function. When the rotating squeezing plate 42 releases the squeezing effect on the arc squeezing plate 41, the elastic effect of the reset spring 39 can drive the spur rack 37 to achieve the reset function.

[0038] The treated gas in the reaction barrel 2 enters the adsorption chamber through multiple air holes 33, and the harmful gas in the exhaust gas is adsorbed by the adsorption material in the adsorption frame 34. When the stirring shaft 3 is rotating, the adsorption material can be stirred by the rotation of multiple stirring rods 35. Specifically, the adsorption material can be activated carbon, modified biomass charcoal and other materials, which can effectively adsorb the residual hydrogen fluoride gas in the exhaust gas, thereby further improving the adsorption effect. When the treatment is completed, the gas is discharged through the exhaust pipe 56, and the gas is detected by the PH detector 57. When it meets the emission standards, the gas is directly discharged. When the PH detector 57 detects that the gas does not meet the standards, the exhaust valve 59 can be closed and the circulation valve 61 can be opened. The gas is sucked into the reaction barrel 2 again through the circulation pipe 60 by the booster pump 9, and re-processed to meet the emission standards.

[0039] After the treatment is completed, sediment will appear in the reaction barrel 2. Open the drain valve to allow the neutralizer to be discharged through the drain pipe. When the stirring shaft 3 rotates, it drives the rotating plate 5 and the first L-shaped connecting pipe 13 to rotate synchronously. Under the meshing action of the two first transmission gears 66, the circular shaft 65 is driven to rotate, and under the meshing action of the two second transmission gears 67, the rotating rod 63 and the cleaning brush 64 are driven to rotate to clean the bottom sediment and discharge it into the reaction barrel 2 along with the neutralizer.

[0040] The above is only a preferred embodiment of the present invention, and does not limit the present invention in other forms. Any technician familiar with the profession may use the above disclosed technical content to change or modify it into an equivalent embodiment with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiment according to the technical essence of the present invention without departing from the technical solution of the present invention still belongs to the protection scope of the technical solution of the present invention.

Claims

1. A device for adsorbing acid gas from tailings of hydrogen fluoride, comprising a treatment box (1), characterized in that: The processing box (1) is provided with a reaction chamber and an adsorption chamber, a reaction barrel (2) is fixedly installed in the reaction chamber, a stirring shaft (3) is rotatably installed on the top inner wall of the adsorption chamber, a driving motor (4) is arranged on the top of the processing box (1), an output shaft of the driving motor (4) extends into the processing box (1) and is connected to the top end of the stirring shaft (3), the bottom end of the stirring shaft (3) extends into the reaction barrel (2) and is fixedly installed with a rotating plate (5), and a rotating plate (5) is provided in the rotating plate (5) A rectangular cavity (68), an L-shaped hole is provided on the inner wall of the side of the rectangular cavity (68), a first L-shaped connecting pipe (13) is fixedly arranged in the L-shaped hole, an air intake mechanism connected to the first L-shaped connecting pipe (13) is provided on the side of the processing box (1), a rectangular hole (69) is provided on the bottom of the rectangular cavity (68), a dispersing head (14) is slidably installed in the rectangular hole (69), the dispersing head (14) is connected to the end of the first L-shaped connecting pipe (13) through a telescopic mechanism, and the A stirring mechanism is fixedly arranged on the peripheral outer wall of the stirring shaft (3), the stirring mechanism is connected to the telescopic mechanism, a plurality of air holes (33) are opened between the reaction chamber and the adsorption chamber, an adsorption frame (34) is fixedly arranged in the adsorption chamber, the stirring shaft (3) is rotatably connected to the adsorption frame (34), a plurality of stirring rods (35) are fixedly arranged on the peripheral outer wall of the stirring shaft (3), the plurality of stirring rods (35) are all arranged in the adsorption frame (34), and the side of the processing box (1) is fixedly arranged A side block (36) is installed, a mounting box (43) is fixedly installed at the bottom of the side block (36), a knocking ball (55) is arranged at the bottom of the mounting box (43), the knocking ball (55) is connected to the stirring shaft (3) through an extrusion transmission mechanism, an exhaust pipe (56) is arranged on the top inner wall of the adsorption chamber, a fixing plate (62) is fixedly installed on the inner wall of the reaction barrel (2), and a cleaning mechanism connected to the first L-shaped connecting pipe (13) is arranged at the bottom of the fixing plate (62).

2. The device for adsorbing acid gas from tailings of hydrogen fluoride preparation according to claim 1, characterized in that: The air intake mechanism comprises an L-shaped air intake pipe (6) and a straight air intake pipe (8); an air intake hole is provided on the side of the processing box (1) and the inner wall of the peripheral side of the reaction barrel (2); the L-shaped air intake pipe (6) is fixedly arranged in the air intake hole; the L-shaped air intake pipe (6) and the straight air intake pipe (8) are connected via a filter assembly; a booster pump (9) is provided on the straight air intake pipe (8); the other end of the L-shaped air intake pipe (6) extends into the reaction barrel (2) and is rotatably connected to the first L-shaped connecting pipe (13).

3. The device for adsorbing acid gas from tailings of hydrogen fluoride preparation according to claim 2, characterized in that: The filter assembly comprises a filter tube (7), the two ends of the filter tube (7) being fixedly connected to the ends of the L-shaped air intake pipe (6) and the straight air intake pipe (8) respectively, a filter plate (10) being fixedly mounted on the inner wall of the peripheral side of the filter tube (7), a collecting tube (11) being fixedly mounted on the side wall of the filter tube (7), the collecting tube (11) being arranged on a side of the filter plate (10) close to the straight air intake pipe (8), and a collecting box (12) being threadedly mounted on the bottom end of the collecting tube (11).

4. The device for adsorbing acid gas from tailings of hydrogen fluoride preparation according to claim 1, characterized in that: The telescopic mechanism comprises a telescopic air pipe (15), one end of the telescopic air pipe (15) being fixedly mounted on the end of the first L-shaped connecting pipe (13), and the other end of the telescopic air pipe being fixedly mounted with a second L-shaped connecting pipe (16), the other end of the second L-shaped connecting pipe (16) being fixedly connected to the dispersing head (14), a moving plate (17) being fixedly mounted on the outer wall of the telescopic air pipe (15), and a reciprocating moving component for controlling the moving plate (17) to slide in the rectangular cavity (68) being arranged in the rectangular cavity (68).

5. The device for adsorbing acid gas from tailings of hydrogen fluoride preparation according to claim 4, characterized in that: The reciprocating moving assembly comprises a linkage shaft (18), the two ends of the linkage shaft (18) are rotatably mounted on the upper and lower inner walls of the rectangular cavity (68), the outer wall of the linkage shaft (18) is fixedly sleeved with a linkage gear (19), the peripheral outer wall of the rotating plate (5) is provided with an avoidance groove, the peripheral inner wall of the reaction barrel (2) is fixedly mounted with an annular inner rack (20), the annular inner rack (20) is arranged in the avoidance groove and meshed with the linkage gear (19), A driving bevel gear (21) is fixedly sleeved on the peripheral outer wall of the linkage shaft (18), two square blocks (22) are fixedly installed on the top inner wall of the rectangular cavity (68), a reciprocating screw (23) is rotatably installed on the two square blocks (22), a driven bevel gear (24) is fixedly sleeved on one end of the reciprocating screw (23), the driven bevel gear (24) is meshedly installed with the driving bevel gear (21), and the movable plate (17) is threadedly installed on the reciprocating screw (23).

6. The device for adsorbing acid gas from tailings of hydrogen fluoride preparation according to claim 4, characterized in that: The stirring mechanism comprises two stirring plates (25), the two stirring plates (25) are fixedly sleeved on the peripheral outer wall of the stirring shaft (3), the tops of the two stirring plates (25) are provided with square sliding holes (70), four square sliding holes (70) are slidably mounted with square sliders (26), the two square sliders (26) on the same stirring plate (25) are connected via a linkage assembly, the four square sliders (26) are provided with connecting holes, two connecting holes on the same side are fixedly mounted with a connecting shaft (31), the peripheral outer walls of the two connecting shafts (31) are fixedly sleeved with a plurality of stirring blades (32), the top inner wall of the rectangular cavity (68) is provided with an avoidance hole, the bottom end of one of the connecting shafts (31) extends to the The movable plate (17) is fixedly connected to the avoidance hole and is fixedly connected to the top of the movable plate (17). The linkage assembly includes a movable gear (27). The stirring plate (25) is provided with a linkage groove, which is located at the lower part of the two square sliding holes (70). A mounting shaft is rotatably mounted on the inner wall of the side of the linkage groove. The movable gear (27) is fixedly sleeved on the outer wall of the peripheral side of the mounting shaft. Two limit shafts (28) are fixedly mounted on the inner wall of the linkage groove. An upper rack (29) and a lower rack (30) are slidably mounted on the two limit shafts (28). The upper rack (29) and the lower rack (30) are both meshed with the movable gear (27). The upper rack (29) and the lower rack (30) are respectively fixedly connected to two square sliding blocks (26) located on the same stirring plate (25).

7. The device for adsorbing acid gas from tailings of hydrogen fluoride preparation according to claim 1, characterized in that: The extrusion transmission mechanism comprises a spur gear (37), a movable cavity is provided in the side block (36), a guide shaft (38) is fixedly mounted on the inner wall of the movable cavity, the spur gear (37) is slidably mounted on the guide shaft (38), a return spring (39) is sleeved on the peripheral outer wall of the guide shaft (38), an extrusion hole is provided in the side wall of the movable cavity and the side wall of the adsorption cavity, an extrusion shaft (40) is slidably mounted in the extrusion hole, one end of the extrusion shaft (40) is fixedly connected to the spur gear (37), the other end of the extrusion shaft (40) extends into the adsorption cavity and is fixedly mounted with an arc-shaped extrusion plate (41), and a rotating extrusion plate (42) is fixedly mounted on the peripheral outer wall of the stirring shaft (3), and the rotating extrusion plate (42) is capable of pushing the arc-shaped extrusion plate (41).

8. The device for adsorbing acid gas from tailings of hydrogen fluoride preparation according to claim 7, characterized in that: The extrusion transmission mechanism further comprises a cam (50); a lower rotating shaft (44) is rotatably mounted inside the installation box (43); an upper rotating shaft (45) is rotatably mounted inside the moving chamber; a rotating gear (46) is fixedly sleeved on the peripheral outer wall of the upper rotating shaft (45); the rotating gear (46) is meshingly mounted with the spur rack (37); a square hole is provided on the bottom wall of the side block (36) and the top wall of the installation box (43); sprockets (47) are fixedly sleeved on the peripheral outer walls of the lower rotating shaft (44) and the upper rotating shaft (45); a chain (48) is meshingly mounted on the two sprockets (47); the cam (50) is fixedly sleeved on the peripheral outer wall of the lower rotating shaft (44); the bottom wall of the installation box (43) is provided with a A circular hole is provided, in which a telescopic sleeve (51) is slidably mounted, a lifting plate (49) is fixedly mounted on the top of the telescopic sleeve (51), the cam (50) can push the lifting plate (49) to move up and down in the installation box (43), a compression spring (52) is sleeved on the peripheral outer wall of the telescopic sleeve (51), the compression spring (52) is arranged between the lifting plate (49) and the bottom wall of the installation box (43), a telescopic rod (53) is slidably mounted in the telescopic sleeve (51), the knocking ball (55) is fixedly arranged on the bottom end of the telescopic rod (53), an avoidance spring (54) is fixedly arranged on the top end of the telescopic rod (53), and the top end of the avoidance spring (54) is fixedly mounted on the top inner wall of the telescopic sleeve (51).

9. The device for adsorbing acid gas from tailings of hydrogen fluoride preparation according to claim 1, characterized in that: The cleaning mechanism comprises a rotating rod (63), the top end of the rotating rod (63) is rotatably mounted on the bottom of the fixing plate (62), the bottom end of the rotating rod (63) is rotatably mounted on the inner wall of the bottom end of the reaction barrel (2), the outer wall of the peripheral side of the rotating rod (63) is fixedly connected with a cleaning brush (64) adapted to the inner wall of the bottom end of the reaction barrel (2), the fixing plate (62) is provided with a rotating hole, a round shaft (65) is rotatably mounted in the rotating hole, the outer wall of the peripheral side of the round shaft (65) and the outer wall of the peripheral side of the first L-shaped connecting tube (13) are both fixedly sleeved with a first transmission gear (66), and the two first transmission gears (66) are meshingly mounted, the outer wall of the peripheral side of the round shaft (65) and the outer wall of the peripheral side of the rotating rod (63) are both fixedly sleeved with a second transmission gear (67), and the two second transmission gears (67) are meshingly mounted.

10. A device for adsorbing acid gas from tailings of hydrogen fluoride production according to any one of claims 1 to 9, characterized in that: The adsorption method comprises the following steps: S1, introducing a neutralizing agent into the reaction barrel (2), introducing exhaust gas into the reaction barrel (2) through an air intake mechanism, starting a drive motor (4) to drive the stirring shaft (3) to rotate, thereby driving the rotating plate (5), the telescopic mechanism, and the dispersion head (14) to rotate synchronously, and under the action of the telescopic mechanism, the exhaust gas is uniformly introduced into the reaction barrel (2); S2, when the stirring shaft (3) rotates, it can drive the stirring mechanism to rotate synchronously, and through the cooperation of the stirring mechanism and the telescopic mechanism, the neutralizing agent is stirred, thereby breaking the bubbles generated when the exhaust gas is introduced; S3. When the waste gas after neutralization enters the adsorption chamber through the multiple air holes (33), the adsorption material in the adsorption frame (34) further adsorbs the harmful gas, so that it meets the emission standard. When the stirring shaft (3) rotates, it drives the multiple stirring rods (35) to rotate, stirring the adsorption material so that its surface is fully in contact with the harmful gas, thereby achieving the adsorption function; S4. When the stirring shaft (3) is rotating, the knocking ball (55) can be driven to move up and down reciprocatingly under the action of the extrusion transmission mechanism to clean the filter assembly.

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