An exhaust gas treatment device for cold rolling pickling

Abstract

The present invention discloses an exhaust gas treatment device for cold rolling pickling. The present invention relates to the technical field of exhaust gas treatment. The present invention includes: a pickling rack, the pickling rack is a rectangular body with a deep groove, the top of the pickling rack is fixedly connected with a trapezoidal cover, and the top of the trapezoidal cover is communicated with an elbow pipe; one end of the elbow pipe away from the trapezoidal cover is provided with a cylindrical pipe, and a purification mechanism is arranged inside the cylindrical pipe, and a steel strip is arranged inside the pickling rack. After the motor is powered on, the motor drives the meshing gear to rotate through the gear, and the right strut pushes the movement of the steel strip through the rotation of the meshing gear, avoiding the steel strip being stuck inside the pickling rack. The steel strip enters the inside of the pickling rack through the feed hole and is cleaned by the acid solution. When the steel strip moves inside the feed hole, it contacts the surface of the rubber block, and the surface of the steel strip is protected by the rubber block. The rubber blocks inside the feed hole are in contact with each other, increasing the sealing performance inside the pickling rack.

Description

Technical Field

[0001] The present invention relates to the technical field of waste gas treatment, and particularly relates to a waste gas treatment device for cold rolling pickling. Background Art

[0002] The method of using an acid solution to remove the scale and rust on the surface of steel is called pickling, which is a method of cleaning the metal surface. Usually, it is carried out together with pre-filming. Generally, the workpiece is immersed in an aqueous solution such as sulfuric acid to remove the oxide film on the metal surface;

[0003] When the acid solution is used to clean the surface of the steel strip, the pickling solution will generate harmful gases that pollute the air. The harmful gases cannot be collected together during the pickling of the steel strip, resulting in a reduction in the treatment efficiency of the harmful gases. Therefore, we propose a waste gas treatment device for cold rolling pickling. Summary of the Invention

[0004] To solve the above technical problems, the present invention provides a waste gas treatment device for cold rolling pickling, including:

[0005] A pickling rack, the pickling rack is a rectangular body with a deep groove, the top of the pickling rack is fixedly connected with a trapezoidal cover, and the top of the trapezoidal cover is communicated with a bent pipe;

[0006] One end of the bent pipe away from the trapezoidal cover is provided with a cylindrical pipe, a purification mechanism is arranged inside the cylindrical pipe, and a steel strip is arranged inside the pickling rack;

[0007] The top of the pickling rack is fixedly connected with a triangular rack, the top of the triangular rack is fixedly connected with a positioning rod, the surface of the positioning rod is rotationally connected with a round rod through a bearing, one end of the round rod away from the positioning rod is fixedly connected with a support rod, the center of the inside of the triangular rack is fixedly connected with a motor, the output end of the motor is fixedly connected with a gear, the surface of the round rod is fixedly connected with an engaging gear, the inside of the bent pipe is fixedly connected with an output motor, the bottom of the output motor is fixedly connected with an output motor, the trapezoidal cover is communicated with the bottom of the bent pipe, triangular racks are respectively arranged at the left and right ends of the top of the pickling rack, the ends of the triangular racks expand towards the left and right ends, support rods are respectively arranged at both ends of the triangular rack. When the steel strip moves on the surface of the support rod, the steel strip is supported by the support rod to avoid wrinkles and reduce the quality of the steel strip. An acid solution is arranged inside the pickling rack, the output end of the output motor is fixedly connected with a rotating rod, the surface of the rotating rod is fixedly connected with fan blades, a stirring mechanism is arranged at the bottom of the rotating rod, a feeding hole is opened at the end of the trapezoidal cover, a rubber block is arranged inside the feeding hole, and an expanding mechanism is arranged inside the pickling rack.

[0008] Further, the output end of the motor is rotationally connected with a gear rack through a bearing. The gear rack is fixedly connected with the inner wall of the triangular frame. The gear meshes with the meshing gear. The bottom of the rotating rod extends into the pickling rack.

[0009] Further, two rubber blocks are arranged inside the feed hole. One ends of the two rubber blocks close to each other are in contact with the surface of the steel belt. The end of the steel belt extends to the outer end of the pickling rack through the feed hole. The surface of the steel belt is in contact with the surface of the support rod.

[0010] Further, the purification mechanism includes a circular ring magnet, a purification pipe, a triangular groove, a magnet triangular block, a filter screen, an activated carbon filter screen, a clamping groove, a rubber pad and a circular ring frame. The circular ring magnet is fixedly connected with the inner wall of the cylindrical pipe. A triangular groove is formed in the inner wall of the circular ring magnet. The top of the purification pipe is fixedly connected with the magnet triangular block. The circular ring frame is fixedly connected with the inner wall of the purification pipe. The number of circular ring magnets is two. The two circular ring magnets are arranged at the ends of the purification pipe. Four triangular grooves are formed in the inner wall of the circular ring magnet, which is convenient for fixing the purification pipe through the contact between the triangular groove and the magnet triangular block. A clamping groove is formed in the inner wall of the circular ring frame. The filter screen is arranged inside the clamping groove. The rubber pad is arranged inside the clamping groove. The activated carbon filter screen is arranged inside the purification pipe:

[0011] The surface of the magnet triangular block is in contact with the inner wall of the triangular groove. The magnet triangular block is located at the surface end of the purification pipe. The number of circular ring frames is two. The two circular ring frames are located at the ends of the activated carbon filter screen. The surface of the rubber pad is in contact with the surface of the filter screen.

[0012] Further, a plug block is fixedly connected with the inner wall of the cylindrical pipe. A positioning block is fixedly connected with the surface of the elbow pipe. A plug slot is formed in the surface of the positioning block. A plurality of plug blocks are arranged on the inner wall of the cylindrical pipe. Push the cylindrical pipe to push the plug block into the plug slot, so that the connection between the cylindrical pipe and the elbow pipe is more stable, and the cylindrical pipe is prevented from shaking and falling off;

[0013] The surface of the plug block is in contact with the inner wall of the plug slot.

[0014] Further, the stirring mechanism includes a hollow circular block, a through hole and a bent plate. The top of the hollow circular block is fixedly connected with the bottom of the rotating rod. A through hole is formed in the surface of the hollow circular block. The hollow circular block is fixedly connected with the bottom of the rotating rod. The hollow circular block is arranged in the acid solution, which is convenient for the hollow circular block to stir the acid solution. The surface of the hollow circular block is fixedly connected with the bent plate;

[0015] The end of the hollow circular block is arranged inside the through hole.

[0016] Further, a top rod is fixedly connected inside the pickling rack, and the top rod is arranged below the bottom of the steel strip.

[0017] Further, the expanding mechanism includes a semi-circular movable rod, a movable rod, an elastic rod, an inclined frame, a bracket, a first roller, a second roller and a cleaning mechanism. The inclined frame is movably connected to the inner wall of the pickling rack through a bearing. The bracket is fixedly connected to the top of the inclined frame. The first roller is rotatably connected to the bracket through a bearing. The second roller is rotatably connected to the inclined frame through a bearing. The first roller is fixed above the second roller through the bracket. The second roller is rotatably connected to the inner wall of the pickling rack through the inclined frame. The bottom of the inclined frame inclines towards the end away from the top rod. The bottom of the semi-circular movable rod is rotatably connected to the top of the inclined frame through a rotating shaft. The semi-circular movable rod is movably connected to the movable rod through the rotating shaft. The end of the elastic rod is fixedly connected to the movable rod. A cleaning mechanism is arranged at the mutually close ends of the inclined frames;

[0018] The bottom surface of the second roller contacts the surface of the steel strip, and the top surface of the first roller contacts the surface of the steel strip.

[0019] Further, the cleaning mechanism includes a limiting rod, an inclined plate, a flow hole, a cleaning plate, a first brush and a second brush. The limiting rod is fixedly connected to the surface of the semi-circular movable rod. The inclined plate is rotatably connected to the limiting rod through a bearing. A flow hole is formed in the surface of the inclined plate. The end of the cleaning plate is rotatably connected to the bottom of the inclined plate through a bearing. The top of the first brush is fixedly connected to the bottom of the cleaning plate. The second brush is fixedly connected to the top of the top rod;

[0020] The mutually close ends of the first brush and the second brush contact the surface of the steel strip.

[0021] The beneficial effects of the present invention are as follows:

[0022] After the motor of the present invention is powered on, the motor drives the meshing gear to rotate through the gear. The supporting rod on the right pushes the movement of the steel strip through the rotation of the meshing gear, avoiding the steel strip being stuck inside the pickling rack. The steel strip enters the inside of the pickling rack through the feeding hole and is cleaned by the acid solution. When the steel strip moves inside the feeding hole, it contacts the surface of the rubber block, and the surface of the steel strip is protected by the rubber block. The rubber blocks inside the feeding hole contact each other, increasing the sealing performance inside the pickling rack. After the output motor is powered on, the output motor drives the fan blade to rotate through the rotating rod. When the fan blade rotates, the waste gas inside the pickling rack is drawn into the inside of the elbow pipe, facilitating purification and filtration through the cylindrical pipe.

[0023] After installing the activated carbon filter screen into the interior of the purification pipe, the present invention pushes the end of the filter screen into the interior of the card slot. The filter screen is fixed at both ends of the activated carbon filter screen through the limit of the circular ring frame. The rubber pad is installed into the interior of the card slot, and the filter screen is clamped inside the card slot through the extrusion of the rubber pad, facilitating the installation and disassembly of the filter screen and the activated carbon filter screen. After the fan blade sucks the waste gas inside the pickling rack into the interior of the elbow pipe, the elbow pipe pushes the waste gas into the interior of the cylindrical pipe. The impurities in the waste gas are filtered through the filter screen inside the cylindrical pipe, and the waste gas is purified through the activated carbon filter screen, increasing environmental protection.

[0024] In the present invention, the hollow circular block drives the bent plate to stir the acid solution through the rotating rod. The acid solution will form a vortex through the stirring of the bent plate. The waste gas inside the pickling rack flows downward to the lower part of the elbow pipe through the flow of the acid solution, facilitating the elbow pipe to suck the waste gas into the interior of the cylindrical pipe. After the acid solution is stirred, it moves on the surface of the steel strip, enabling the acid solution to push the impurities on the surface of the steel strip to separate from the steel strip through the stirring force of the bent plate.

[0025] After the steel strip enters the interior of the pickling rack in the present invention, the bottom surface of the second rolling rod contacts the surface of the steel strip, and the top surface of the first rolling rod contacts the surface of the steel strip. The semi-circular movable rod contracts through the elasticity of the elastic rod, and the inclined frame squeezes the end of the inclined frame to move downward through the contraction of the semi-circular movable rod. The first rolling rod increases the tension of the steel strip through the movement of the inclined frame, increasing the efficiency of the steel strip during pickling. When the steel strip moves on the surface of the first rolling rod, the steel strip will loosen due to bending and the impurities on the surface, facilitating the cleaning of the impurities by the rotation of the acid solution.

[0026] In the present invention, the inclined plate squeezes the cleaning plate to move downward through the contraction of the semi-circular movable rod. The steel strip contacts the surface of the ejector rod through the extrusion of the cleaning plate, and the surface of the steel strip is cleaned by the first brush and the second brush. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 is a schematic diagram of the rear view sectional structure of the pickling rack of the present invention;

[0029] Figure 3 is a schematic diagram of the front view sectional structure of the purification pipe of the present invention;

[0030] Figure 4 is a schematic diagram of the rear view sectional structure of the cylindrical pipe of the present invention;

[0031] Figure 5 is a schematic diagram of the overall structure of the hollow circular block of the present invention;

[0032] Figure 6 is a schematic diagram of the overall structure of the ejector rod of the present invention;

[0033] Figure 7 Schematic diagram of the overall structure of the inclined frame of the present invention;

[0034] Figure 8 For the present invention Figure 7 Enlarged schematic diagram of part A in

[0035] 1. Pickling rack; 2. Trapezoidal cover; 3. Bent pipe; 4. Cylindrical pipe; 5. Steel strip; 6. Purification mechanism; 7. Gear rack; 10. Tripod; 11. Positioning rod; 12. Support rod; 13. Motor; 14. Gear; 15. Meshing gear; 16. Round rod; 17. Output motor; 18. Fan blade; 19. Rotating rod; 20. Stirring mechanism; 21. Expansion mechanism; 22. Feed hole; 23. Rubber block; 30. Ring magnet; 31. Purification pipe; 32. Triangular groove; 33. Magnet triangular block; 34. Filter screen; 35. Activated carbon filter screen; 36. Card slot; 37. Rubber pad; 38. Ring frame; 43. Positioning block; 44. Plug block; 45. Plug slot; 50. Hollow round block; 51. Through hole; 52. Bent plate; 53. Thrust rod; 60. Semi-circular movable rod; 61. Movable rod; 62. Elastic rod; 63. Inclined frame; 64. Bracket; 65. Roller one; 66. Roller two; 67. Cleaning mechanism; 70. Limit rod; 71. Inclined plate; 72. Flow hole; 73. Cleaning plate; 74. Brush one; 75. Brush two. Detailed implementation manners

[0036] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation manners. The embodiments of the present invention are given for the purpose of illustration and description, and are not exhaustive or limit the present invention to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for specific purposes.

[0037] Embodiment 1

[0038] Please refer to Figures 1-7 , the present invention is an exhaust gas treatment device for cold rolling pickling, including:

[0039] Pickling rack 1, the pickling rack 1 is a rectangle with a deep groove, the top of the pickling rack 1 is fixedly connected with a trapezoidal cover 2, and the top of the trapezoidal cover 2 is communicated with a bent pipe 3;

[0040] One end of the bent pipe 3 away from the trapezoidal cover 2 is provided with a cylindrical pipe 4, a purification mechanism 6 is arranged inside the cylindrical pipe 4, and a steel strip 5 is arranged inside the pickling rack 1;

[0041] A triangular frame 10 is fixedly connected to the top of the pickling rack 1. A positioning rod 11 is fixedly connected to the top of the triangular frame 10. A round rod 16 is rotatably connected to the surface of the positioning rod 11 through a bearing. One end of the round rod 16 away from the positioning rod 11 is fixedly connected to a support rod 12. A motor 13 is fixedly connected to the center inside the triangular frame 10. The output end of the motor 13 is fixedly connected to a gear 14. A meshing gear 15 is fixedly connected to the surface of the round rod 16. An output motor 17 is fixedly connected to the inside of the elbow pipe 3. The bottom of the output motor 17 is fixedly connected to the output motor 17. The output end of the output motor 17 is fixedly connected to a rotating rod 19. A fan blade 18 is fixedly connected to the surface of the rotating rod 19. A stirring mechanism 20 is arranged at the bottom of the rotating rod 19. A feed hole 22 is formed at the end of the trapezoidal cover 2. A rubber block 23 is arranged inside the feed hole 22. An expansion mechanism 21 is arranged inside the pickling rack 1. After the motor 13 is powered on in the present invention, the motor 13 drives the meshing gear 15 to rotate through the gear 14. The support rod 12 on the right side pushes the movement of the steel belt 5 through the rotation of the meshing gear 15, avoiding the steel belt 5 being stuck inside the pickling rack 1. The steel belt 5 enters the inside of the pickling rack 1 through the feed hole 22 and is cleaned by the acid solution. When the steel belt 5 moves inside the feed hole 22, it contacts the surface of the rubber block 23, and the surface of the steel belt 5 is protected by the rubber block 23. The rubber blocks 23 inside the feed hole 22 contact each other, increasing the sealing performance inside the pickling rack 1. After the output motor 17 is powered on, the output motor 17 drives the fan blade 18 to rotate through the rotating rod 19. When the fan blade 18 rotates, the waste gas inside the pickling rack 1 is drawn into the inside of the elbow pipe 3, facilitating purification and filtration through the cylindrical pipe 4.

[0042] The output end of the motor 13 is rotatably connected to a gear rack 7 through a bearing. The gear rack 7 is fixedly connected to the inner wall of the triangular frame 10. The gear 14 and the meshing gear 15 mesh with each other. The bottom of the rotating rod 19 extends to the inside of the pickling rack 1.

[0043] Two rubber blocks 23 are arranged inside the feed hole 22. One ends of the two rubber blocks 23 close to each other contact the surface of the steel belt 5. One end of the steel belt 5 extends to the outside of the pickling rack 1 through the feed hole 22. The surface of the steel belt 5 contacts the surface of the support rod 12.

[0044] The purification mechanism 6 includes a circular magnet 30, a purification pipe 31, a triangular groove 32, a magnet triangular block 33, a filter screen 34, an activated carbon filter screen 35, a card slot 36, a rubber pad 37 and a circular ring frame 38. The circular magnet 30 is fixedly connected to the inner wall of the cylindrical pipe 4. A triangular groove 32 is formed in the inner wall of the circular magnet 30. The top of the purification pipe 31 is fixedly connected to the magnet triangular block 33. The circular ring frame 38 is fixedly connected to the inner wall of the purification pipe 31. A card slot 36 is formed in the inner wall of the circular ring frame 38. The filter screen 34 is arranged inside the card slot 36. The rubber pad 37 is arranged inside the card slot 36. The activated carbon filter screen 35 is arranged inside the purification pipe 31. After the activated carbon filter screen 35 of the present invention is installed into the purification pipe 31, the end of the filter screen 34 is pushed into the card slot 36. The filter screen 34 is fixed at both ends of the activated carbon filter screen 35 through the limit of the circular ring frame 38. The rubber pad 37 is installed into the card slot 36. The filter screen 34 is stuck inside the card slot 36 through the extrusion of the rubber pad 37, which is convenient for the installation and disassembly of the filter screen 34 and the activated carbon filter screen 35. After the fan blade 18 sucks the waste gas inside the pickling rack 1 into the elbow pipe 3, the elbow pipe 3 pushes the waste gas into the cylindrical pipe 4. The impurities in the waste gas are filtered by the filter screen 34 inside the cylindrical pipe 4, and the waste gas is purified by the activated carbon filter screen 35, increasing environmental protection:

[0045] The surface of the magnet triangular block 33 is in contact with the inner wall of the triangular groove 32. The magnet triangular block 33 is located at the surface end of the purification pipe 31. The number of circular ring frames 38 is two. The two circular ring frames 38 are located at the ends of the activated carbon filter screen 35. The surface of the rubber pad 37 is in contact with the surface of the filter screen 34.

[0046] A pin block 44 is fixedly connected to the inner wall of the cylindrical pipe 4. A positioning block 43 is fixedly connected to the surface of the elbow pipe 3. A pin slot 45 is formed in the surface of the positioning block 43;

[0047] The surface of the pin block 44 is in contact with the inner wall of the pin slot 45.

[0048] The stirring mechanism 20 includes a hollow circular block 50, a through hole 51 and a bent plate 52. The top of the hollow circular block 50 is fixedly connected to the bottom of the rotating rod 19. A through hole 51 is formed in the surface of the hollow circular block 50. The surface of the hollow circular block 50 is fixedly connected to the bent plate 52. In the present invention, the hollow circular block 50 drives the bent plate 52 to stir the acid solution through the rotating rod 19. The acid solution will form a vortex through the stirring of the bent plate 52. The waste gas inside the pickling rack 1 flows downward to the lower part of the elbow pipe 3 through the flow of the acid solution, which is convenient for the elbow pipe 3 to suck the waste gas into the cylindrical pipe 4. After the acid solution is stirred, it moves on the surface of the steel belt 5, so that the acid solution can push the impurities on the surface of the steel belt 5 to separate from the steel belt 5 through the stirring force of the bent plate 52;

[0049] The end of the hollow circular block 50 is arranged inside the through hole 51.

[0050] Inside the pickling rack 1, a top rod 53 is fixedly connected, and the top rod 53 is arranged below the bottom of the steel strip 5.

[0051] The expanding mechanism 21 includes a semi-circular movable rod 60, a movable rod 61, an elastic rod 62, an inclined frame 63, a bracket 64, a first roller 65, a second roller 66 and a cleaning mechanism 67. The inclined frame 63 is movably connected to the inner wall of the pickling rack 1 through a bearing. The bracket 64 is fixedly connected to the top of the inclined frame 63. The first roller 65 is rotatably connected to the bracket 64 through a bearing. The second roller 66 is rotatably connected to the inclined frame 63 through a bearing. The bottom of the semi-circular movable rod 60 is rotatably connected to the top of the inclined frame 63 through a rotating shaft. The semi-circular movable rod 60 is movably connected to the movable rod 61 through a rotating shaft. The end of the elastic rod 62 is fixedly connected to the movable rod 61. A cleaning mechanism 67 is arranged at one end of the inclined frame 63 close to each other. After the steel strip 5 of the present invention enters the inside of the pickling rack 1, the bottom surface of the second roller 66 contacts the surface of the steel strip 5, and the top surface of the first roller 65 contacts the surface of the steel strip 5. The semi-circular movable rod 60 contracts through the elasticity of the elastic rod 62. The inclined frame 63 squeezes the end of the inclined frame 63 to move downward through the contraction of the semi-circular movable rod 60. The first roller 65 increases the tension of the steel strip 5 through the movement of the inclined frame 63, increasing the efficiency of the steel strip 5 during pickling. When the steel strip 5 moves on the surface of the first roller 65, the steel strip 5 will be loosened from the impurities on the surface by bending, facilitating the cleaning of the impurities by the rotating acid solution;

[0052] The bottom surface of the second roller 66 contacts the surface of the steel strip 5, and the top surface of the first roller 65 contacts the surface of the steel strip 5.

[0053] Embodiment 2

[0054] Please refer to Figures 1-8 , the present invention is an exhaust gas treatment device for cold rolling pickling, including:

[0055] A pickling rack 1, the pickling rack 1 is a rectangle with a deep groove. A trapezoidal cover 2 is fixedly connected to the top of the pickling rack 1, and a bent pipe 3 is communicated with the top of the trapezoidal cover 2;

[0056] One end of the bent pipe 3 away from the trapezoidal cover 2 is provided with a cylindrical pipe 4. A purification mechanism 6 is arranged inside the cylindrical pipe 4, and a steel strip 5 is arranged inside the pickling rack 1;

[0057] At the top of the pickling rack 1, a triangular rack 10 is fixedly connected. At the top of the triangular rack 10, a positioning rod 11 is fixedly connected. The surface of the positioning rod 11 is rotationally connected with a round rod 16 through a bearing. One end of the round rod 16 away from the positioning rod 11 is fixedly connected with a support rod 12. At the center of the interior of the triangular rack 10, a motor 13 is fixedly connected. The output end of the motor 13 is fixedly connected with a gear 14. The surface of the round rod 16 is fixedly connected with an engaging gear 15. Inside the elbow pipe 3, an output motor 17 is fixedly connected. At the bottom of the output motor 17, an output motor 17 is fixedly connected. The output end of the output motor 17 is fixedly connected with a rotating rod 19. The surface of the rotating rod 19 is fixedly connected with a fan blade 18. At the bottom of the rotating rod 19, a stirring mechanism 20 is provided. At the end of the trapezoidal cover 2, a feed hole 22 is opened. Inside the feed hole 22, a rubber block 23 is provided. Inside the pickling rack 1, an expansion mechanism 21 is provided.

[0058] The output end of the motor 13 is rotationally connected with a gear rack 7 through a bearing. The gear rack 7 is fixedly connected with the inner wall of the triangular rack 10. The gear 14 and the engaging gear 15 are meshed with each other. The bottom of the rotating rod 19 extends into the interior of the pickling rack 1.

[0059] Inside the feed hole 22, two rubber blocks 23 are provided. One end of the two rubber blocks 23 close to each other is in contact with the surface of the steel strip 5. The end of the steel strip 5 extends to the outer end of the pickling rack 1 through the feed hole 22. The surface of the steel strip 5 is in contact with the surface of the support rod 12.

[0060] The purification mechanism 6 includes an annular magnet 30, a purification pipe 31, a triangular groove 32, a magnet triangular block 33, a filter screen 34, an activated carbon filter screen 35, a clamping groove 36, a rubber pad 37 and an annular frame 38. The annular magnet 30 is fixedly connected with the inner wall of the cylindrical pipe 4. Inside the inner wall of the annular magnet 30, a triangular groove 32 is opened. The top of the purification pipe 31 is fixedly connected with the magnet triangular block 33. The annular frame 38 is fixedly connected with the inner wall of the purification pipe 31. Inside the inner wall of the annular frame 38, a clamping groove 36 is opened. The filter screen 34 is arranged inside the clamping groove 36. The rubber pad 37 is arranged inside the clamping groove 36. The activated carbon filter screen 35 is arranged inside the purification pipe 31:

[0061] The surface of the magnet triangular block 33 is in contact with the inner wall of the triangular groove 32. The magnet triangular block 33 is located at the surface end of the purification pipe 31. The number of the annular frames 38 is two. The two annular frames 38 are located at the ends of the activated carbon filter screen 35. The surface of the rubber pad 37 is in contact with the surface of the filter screen 34.

[0062] A plug block 44 is fixedly connected with the inner wall of the cylindrical pipe 4. A positioning block 43 is fixedly connected with the surface of the elbow pipe 3. Inside the surface of the positioning block 43, a plug slot 45 is opened;

[0063] The surface of the plug block 44 is in contact with the inner wall of the plug slot 45.

[0064] The stirring mechanism 20 includes a hollow circular block 50, a through hole 51, and a bent plate 52. The top of the hollow circular block 50 is fixedly connected to the bottom of the rotating rod 19. The surface of the hollow circular block 50 is provided with the through hole 51, and the surface of the hollow circular block 50 is fixedly connected to the bent plate 52;

[0065] The end of the hollow circular block 50 is arranged inside the through hole 51.

[0066] A top rod 53 is fixedly connected inside the pickling rack 1, and the top rod 53 is arranged below the bottom of the steel strip 5.

[0067] The expanding mechanism 21 includes a semi-circular movable rod 60, a movable rod 61, an elastic rod 62, an inclined frame 63, a bracket 64, a first roller 65, a second roller 66, and a cleaning mechanism 67. The inclined frame 63 is movably connected to the inner wall of the pickling rack 1 through a bearing. The bracket 64 is fixedly connected to the top of the inclined frame 63. The first roller 65 is rotatably connected to the bracket 64 through a bearing. The second roller 66 is rotatably connected to the inclined frame 63 through a bearing. The bottom of the semi-circular movable rod 60 is rotatably connected to the top of the inclined frame 63 through a rotating shaft. The semi-circular movable rod 60 is movably connected to the movable rod 61 through a rotating shaft. The end of the elastic rod 62 is fixedly connected to the movable rod 61. A cleaning mechanism 67 is arranged at one end of the inclined frame 63 close to each other;

[0068] The bottom surface of the second roller 66 is in contact with the surface of the steel strip 5, and the top surface of the first roller 65 is in contact with the surface of the steel strip 5.

[0069] The cleaning mechanism 67 includes a limiting rod 70, an inclined plate 71, a flow hole 72, a cleaning plate 73, a first brush 74, and a second brush 75. The limiting rod 70 is fixedly connected to the surface of the semi-circular movable rod 60. The inclined plate 71 is rotatably connected to the limiting rod 70 through a bearing. The surface of the inclined plate 71 is provided with the flow hole 72. The end of the cleaning plate 73 is rotatably connected to the bottom of the inclined plate 71 through a bearing. The top of the first brush 74 is fixedly connected to the bottom of the cleaning plate 73. The second brush 75 is fixedly connected to the top of the top rod 53. In the present invention, the inclined plate 71 squeezes the cleaning plate 73 to move downward through the contraction of the semi-circular movable rod 60. The steel strip 5 contacts the surface of the top rod 53 through the extrusion of the cleaning plate 73, and the surface of the steel strip is cleaned by the first brush 74 and the second brush 75;

[0070] The ends of the first brush 74 and the second brush 75 close to each other are in contact with the surface of the steel strip 5.

[0071] A specific application of this embodiment is as follows: After the motor 13 is powered on, the motor 13 drives the meshing gear 15 to rotate through the gear 14. The supporting rod 12 on the right side pushes the steel belt 5 to move through the rotation of the meshing gear 15, preventing the steel belt 5 from getting stuck inside the pickling rack 1. The steel belt 5 enters the inside of the pickling rack 1 through the feed hole 22 and is cleaned with the acid solution. When the steel belt 5 moves inside the feed hole 22, it contacts the surface of the rubber block 23, and the surface of the steel belt 5 is protected by the rubber block 23. The rubber blocks 23 inside the feed hole 22 are in contact with each other, increasing the sealing performance inside the pickling rack 1. After the activated carbon filter net 35 is installed inside the purification pipe 31, the end of the filter net 34 is pushed into the inside of the card slot 36. The filter net 34 is fixed at both ends of the activated carbon filter net 35 through the limit of the circular ring frame 38. The rubber pad 37 is installed inside the card slot 36, and the filter net 34 is stuck inside the card slot 36 through the extrusion of the rubber pad 37, facilitating the installation and disassembly of the filter net 34 and the activated carbon filter net 35. After the fan blade 18 sucks the exhaust gas inside the pickling rack 1 into the inside of the elbow pipe 3, the elbow pipe 3 pushes the exhaust gas into the inside of the cylindrical pipe 4. The impurities in the exhaust gas are filtered by the filter net 34 inside the cylindrical pipe 4. The hollow circular block 50 drives the bent plate 52 to stir the acid solution through the rotating rod 19. The acid solution will form a vortex through the stirring of the bent plate 52. The exhaust gas inside the pickling rack 1 flows downward to the lower part of the elbow pipe 3 through the flow of the acid solution, facilitating the elbow pipe 3 to suck the exhaust gas into the inside of the cylindrical pipe 4. After the acid solution is stirred, it moves on the surface of the steel belt 5. After the steel belt 5 enters the inside of the pickling rack 1, the bottom surface of the second rolling rod 66 contacts the surface of the steel belt 5, and the top surface of the first rolling rod 65 contacts the surface of the steel belt 5. The semi-circular movable rod 60 shrinks through the elasticity of the elastic rod 62. The inclined frame 63 squeezes the end of the inclined frame 63 to move downward through the shrinkage of the semi-circular movable rod 60. The first rolling rod 65 increases the tension of the steel belt 5 through the movement of the inclined frame 63. The inclined plate 71 squeezes the cleaning plate 73 to move downward through the shrinkage of the semi-circular movable rod 60. The steel belt 5 contacts the surface of the ejector rod 53 through the extrusion of the cleaning plate 73, and the surface of the steel belt is cleaned by the first brush hair 74 and the second brush hair 75.

[0072] Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art and related fields without creative efforts shall fall within the protection scope of the present invention. The structures, devices, and operation methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the art without special instructions and limitations.

Claims

1. An exhaust gas treatment device for cold rolling pickling, characterized in that, Including: Pickling rack (1), the pickling rack (1) is a rectangular body with a deep groove, a trapezoidal cover (2) is fixedly connected to the top of the pickling rack (1), and an elbow pipe (3) is communicated with the top of the trapezoidal cover (2); One end of the elbow pipe (3) away from the trapezoidal cover (2) is provided with a cylindrical pipe (4), a purification mechanism (6) is arranged inside the cylindrical pipe (4), a steel strip (5) is arranged inside the pickling rack (1), and the purification mechanism (6) includes an annular magnet (30), a purification pipe (31), a triangular groove (32), a magnet triangular block (33), a filter screen (34), an activated carbon filter screen (35), a clamping groove (36), a rubber pad (37) and an annular frame (38). The annular magnet (30) is fixedly connected to the inner wall of the cylindrical pipe (4), a triangular groove (32) is opened on the inner wall of the annular magnet (30), the top of the purification pipe (31) is fixedly connected to the magnet triangular block (33), the annular frame (38) is fixedly connected to the inner wall of the purification pipe (31), a clamping groove (36) is opened on the inner wall of the annular frame (38), the filter screen (34) is arranged inside the clamping groove (36), the rubber pad (37) is arranged inside the clamping groove (36), and the activated carbon filter screen (35) is arranged inside the purification pipe (31); A triangular frame (10) is fixedly connected to the top of the pickling rack (1), a positioning rod (11) is fixedly connected to the top of the triangular frame (10), a round rod (16) is rotatably connected to the surface of the positioning rod (11) through a bearing, a support rod (12) is fixedly connected to one end of the round rod (16) away from the positioning rod (11), a motor (13) is fixedly connected to the center inside the triangular frame (10), an output end of the motor (13) is fixedly connected to a gear (14), a meshing gear (15) is fixedly connected to the surface of the round rod (16), an output motor (17) is fixedly connected to the inside of the elbow pipe (3), a bottom of the output motor (17) is fixedly connected to the output motor (17), an output end of the output motor (17) is fixedly connected to a rotating rod (19), a fan blade (18) is fixedly connected to the surface of the rotating rod (19), a stirring mechanism (20) is arranged at the bottom of the rotating rod (19), a feeding hole (22) is opened at an end of the trapezoidal cover (2), a rubber block (23) is arranged inside the feeding hole (22), and an expanding mechanism (21) is arranged inside the pickling rack (1); The expansion mechanism (21) includes a semi-circular movable rod (60), a movable rod (61), an elastic rod (62), an inclined frame (63), a bracket (64), a first roller (65), a second roller (66) and a cleaning mechanism (67). The inclined frame (63) is movably connected to the inner wall of the pickling rack (1) through a bearing. The bracket (64) is fixedly connected to the top of the inclined frame (63). The first roller (65) is rotatably connected to the bracket (64) through a bearing. The second roller (66) is rotatably connected to the inclined frame (63) through a bearing. The bottom of the semi-circular movable rod (60) is rotatably connected to the top of the inclined frame (63) through a rotating shaft. The semi-circular movable rod (60) is movably connected to the movable rod (61) through a rotating shaft. The end of the elastic rod (62) is fixedly connected to the movable rod (61). A cleaning mechanism (67) is arranged at one end of the inclined frame (63) close to each other. The cleaning mechanism (67) includes a limiting rod (70), an inclined plate (71), a flow hole (72), a cleaning plate (73), a first brush (74) and a second brush (75). The limiting rod (70) is fixedly connected to the surface of the semi-circular movable rod (60). The inclined plate (71) is rotatably connected to the limiting rod (70) through a bearing. The surface of the inclined plate (71) is provided with a flow hole (72). The end of the cleaning plate (73) is rotatably connected to the bottom of the inclined plate (71) through a bearing. The top of the first brush (74) is fixedly connected to the bottom of the cleaning plate (73). The second brush (75) is fixedly connected to the top of the ejector rod (53).

2. The waste gas treatment equipment for cold rolling pickling according to claim 1, wherein: The output end of the motor (13) is rotatably connected with a gear rack (7) through a bearing. The gear rack (7) is fixedly connected to the inner wall of the triangular frame (10). The gear (14) meshes with the meshing gear (15). The bottom of the rotating rod (19) extends into the pickling rack (1).

3. The waste gas treatment equipment for cold rolling pickling according to claim 1, characterized in that: Two rubber blocks (23) are arranged inside the feed hole (22). One end of the two rubber blocks (23) close to each other contacts the surface of the steel belt (5). The end of the steel belt (5) extends to the outer end of the pickling rack (1) through the feed hole (22). The surface of the steel belt (5) contacts the surface of the support rod (12).

4. An exhaust gas treatment device for cold rolling pickling according to claim 1, characterized in that: The surface of the magnet triangular block (33) contacts the inner wall of the triangular groove (32). The magnet triangular block (33) is located at the surface end of the purification pipe (31). The number of the circular ring frames (38) is two. The two circular ring frames (38) are located at the end of the activated carbon filter net (35). The surface of the rubber pad (37) contacts the surface of the filter net (34).

5. An exhaust gas treatment device for cold rolling pickling according to claim 1, characterized in that: A pin block (44) is fixedly connected to the inner wall of the cylindrical pipe (4). A positioning block (43) is fixedly connected to the surface of the elbow pipe (3). A pin slot (45) is arranged on the surface of the positioning block (43). The surface of the pin block (44) contacts the inner wall of the pin slot (45).

6. The waste gas treatment equipment for cold rolling pickling according to claim 1, characterized in that: The stirring mechanism (20) includes a hollow circular block (50), a through hole (51), and a bent plate (52). The top of the hollow circular block (50) is fixedly connected to the bottom of the rotating rod (19). A through hole (51) is formed in the surface of the hollow circular block (50), and the surface of the hollow circular block (50) is fixedly connected to the bent plate (52). The end of the hollow circular block (50) is arranged inside the through hole (51).

7. An exhaust gas treatment device for cold rolling pickling according to claim 1, characterized in that: A top rod (53) is fixedly connected inside the pickling rack (1), and the top rod (53) is arranged below the bottom of the steel strip (5).

8. An exhaust gas treatment device for cold rolling and pickling according to claim 1, characterized in that: The bottom surface of the second roller (66) contacts the surface of the steel strip (5), and the top surface of the first roller (65) contacts the surface of the steel strip (5).

9. An exhaust gas treatment device for cold rolling pickling according to claim 8, characterized in that: One ends of the first brush (74) and the second brush (75) close to each other contact the surface of the steel strip (5).

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