Flue gas emission pretreatment device for production enterprises

Abstract

The present invention discloses a flue gas emission pretreatment device for a production enterprise, and specifically relates to the field of flue gas spraying technology, including a spraying box, a bracket, a displacement motor, and a transverse cross displacement spraying mechanism; wherein the transverse cross displacement spraying mechanism includes a displacement frame, two limit sliding columns, a push block, and a limit rotating shaft, including a vertical cross displacement spraying mechanism and a displacement conveying spraying mechanism. The present invention uses a transverse cross displacement spraying mechanism, with multiple cross nozzles on a displacement nozzle, and multiple cross nozzles on another displacement nozzle that can perform cross-lateral reciprocating displacement movement, the sprayed water body can achieve large-area flow contact with high-temperature flue gas, the flue gas spraying pretreatment is more thorough, and the flue gas spraying pretreatment effect of the production enterprise is greatly improved, thereby solving the problem that it is difficult for the spraying water body to achieve large-area flow contact with the flue gas, resulting in poor flue gas pretreatment spraying effect of the production enterprise.

Description

Technical Field

[0001] The invention relates to the technical field of flue gas spraying, and more specifically to a flue gas emission pretreatment device for a production enterprise. Background Art

[0002] The flue gas pretreatment spray washing device of the manufacturing enterprise can remove particulate matter in the flue gas pretreatment. Flue gas often contains fine smoke particles, which not only pollute the atmosphere but also may cause harm to human health. The spray washing device uses physical methods to make the spray washing water mist contact with the particles in the gas, thereby effectively removing the particles in the flue gas.

[0003] In the existing public documents, the Chinese patent announcement number CN108686490A discloses a flue gas desulfurization dust removal tower and a desulfurization dust removal method. The technology is composed of a middle liquid holding tank area, a secondary spraying area, an upper liquid holding tank area, a tertiary spraying area, a demisting area and a flue gas discharge area from bottom to top through a deep processing unit; the present invention eliminates the "white smoke dragon" phenomenon of wet desulfurization, and the "white smoke" phenomenon at the flue gas discharge port is significantly reduced; the triple functions of flue gas dust removal, desulfurization and deep demisting are realized in one tower, and each functional area cooperates and promotes each other, which greatly reduces the floor space of the equipment and significantly reduces the cost required for device construction and transformation. However, the technology still has the following defects.

[0004] During the emission process of flue gas from production enterprises, environmental pollution is caused because the flue gas contains a large amount of fine particles. Although the flue gas can be sprayed with water to capture the particles and discharge them downward, the spraying process is difficult to form horizontal cross-displacement spraying and vertical cross-displacement spraying because the positions of the spraying ports are fixed. At the same time, the flue gas will also be sprayed and contacted at a fixed position, making it difficult for the sprayed water and the flue gas to achieve large-area flow contact, resulting in poor flue gas spraying effect of production enterprises. For this reason, production enterprises need flue gas emission pretreatment devices. Summary of the invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides the following technical solutions: a flue gas emission pretreatment device for a production enterprise comprises a spray box, a bracket and a position-changing motor, wherein the bracket is fixed on one side of the spray box, the position-changing motor is fixed on one end of the bracket, and a horizontal cross position-changing spray mechanism is provided at the output end of the position-changing motor; the horizontal cross position-changing spray mechanism comprises a position-changing frame fixedly arranged at the output end of the position-changing motor, and the inner wall of the position-changing frame is slidably connected with two limit sliding columns, and the top of each limit sliding column is fixedly connected with a push block, and one side of the push block is fixedly installed with a limit rotating shaft; the outer wall of the limit rotating shaft is slidably connected with a groove sleeve column, and one end of the groove sleeve column is fixedly connected with a position-changing nozzle, and the position-changing nozzle is slidably connected with the spray box, and the outer wall of the position-changing nozzle is fixedly connected with a plurality of cross nozzles at a position inside the spray box; the outer wall of the position-changing nozzle is fixedly connected with a convex strip sleeve near the position of the groove sleeve column, and a vertical cross position-changing spray mechanism is provided below the bracket; a position-changing conveying spray mechanism is provided on one side of one of the cross nozzles.

[0006] Preferably, the two limit slides are symmetrically arranged about the displacement motor, the outer wall of the limit slide and the inner wall of the displacement frame are both smooth surfaces, a displacement angle sensor is fixedly installed on the lower surface of the displacement frame, and the center point of the output end of the displacement angle sensor and the center point of the output end of the displacement motor are on the same vertical line; a support plate is installed on one side of the displacement angle sensor, and the bracket and the displacement angle sensor are fixedly connected to the support plate.

[0007] A delivery hose is provided at the top of the outer wall of the variable position nozzle, and the two variable position nozzles are fixedly connected to the delivery hose. A delivery pump is fixedly installed at the bottom end of the delivery hose, and the delivery pump is fixedly connected to the spray box. The bottom end of the spray box is threadedly connected to an electric valve, and mounting plates are fixedly connected on both sides of the outer wall of the spray box near the position of the electric valve. A controller is fixedly connected to the outer wall of the spray box and on one side adjacent to the mounting plate. A plurality of nozzles are opened on the outer wall of each of the cross nozzles, and the plurality of nozzles are arranged equidistantly in a circular ring.

[0008] When the present technology is in use, the displacement motor drives the displacement frame to rotate clockwise, the limit slide column drives the push block to move right, and the other limit slide column drives the other push block to move left, the limit rotating shaft makes the slot sleeve column move right, the convex strip sleeve moves right along the inner wall of the gear, and multiple cross nozzles form a horizontal cross displacement spray water body. When the displacement frame rotates to positive thirty degrees, the controller starts the displacement motor to drive counterclockwise, the displacement frame drives the limit slide column to move left, and the other limit slide column moves right. The limit rotating shaft drives the slot sleeve column to move left, the displacement nozzle makes multiple cross nozzles move left crosswise, and at the same time, multiple cross nozzles on another displacement nozzle can move right crosswise, and multiple cross nozzles on the displacement nozzle and multiple cross nozzles on another displacement nozzle perform cross lateral displacement movement. When the displacement angle sensor senses that the displacement frame is reversed thirty degrees, the controller continues to start the displacement motor for clockwise drive, and the multiple cross nozzles on the displacement nozzle and the multiple cross nozzles on another displacement nozzle perform cross-lateral displacement and reciprocating movement.

[0009] Preferably, the vertical cross-displacement spraying mechanism includes a frame plate arranged below the bracket; the frame plate is fixedly connected to the spray box, the inner wall of the frame plate is rotatably connected with a bidirectional screw, one end of the frame plate is fixedly installed with a driving motor, the driving motor is used to drive the bidirectional screw to rotate, and the two threads on the outer wall of the bidirectional screw are opposite and symmetrical; the outer wall of the bidirectional screw is threadedly connected with two sleeve blocks, the top of each sleeve block is fixedly installed with a rack, the bottom end of the inner wall of the rack is meshingly connected with a gear, and the gear is slidably connected with the convex strip sleeve; both sides of the gear are provided with an annular groove, and the inner wall of the annular groove is rotatably connected with a concave positioning column, the upper surface of the concave positioning column is provided with a support bar, the two concave positioning columns are fixedly connected to the support bar, and the support bar is fixedly connected to the bracket; a rotation sensor is fixedly installed on one end of the bidirectional screw, and a support block is provided on the lower surface of the rotation sensor, and the frame plate and the rotation sensor are fixedly connected to the support block. The sleeve blocks are all slidably connected to the frame plates, and the inner wall of the frame plates and the outer wall of the sleeve blocks are both smooth surfaces.

[0010] When this technology is in use, the driving motor drives the bidirectional screw to rotate forward, the bidirectional screw drives the two socket blocks to approach each other under the action of the thread transmission force, the rack drives the gear to rotate counterclockwise, the gear drives the convex sleeve to rotate counterclockwise, the convex sleeve drives the displacement nozzle to rotate counterclockwise, the slot sleeve column rotates counterclockwise at the limit limit on the outer wall of the limit shaft, the displacement nozzle drives multiple cross nozzles to rotate counterclockwise, and another displacement nozzle drives multiple cross nozzles to rotate clockwise. The rotation sensor senses the number of rotations of the bidirectional screw. When the number of rotations sensed by the rotation sensor is the same as the number of rotations set by the controller, the controller continues to start the driving motor to drive the bidirectional screw in the reverse direction. The two socket blocks move away from each other under the action of the thread transmission force, and the socket block drives the rack to move left, the rack causes the gear to rotate clockwise, the gear drives the convex sleeve to rotate clockwise, the convex sleeve drives the variable position nozzle to rotate clockwise and the other variable position nozzle to rotate counterclockwise, the multiple cross nozzles on the variable position nozzle can rotate counterclockwise, and the multiple cross nozzles on the other variable position nozzle can rotate clockwise.

[0011] Preferably, the displacement conveying spraying mechanism comprises a slider arranged on one side of one of the cross nozzles; the slider is slidably connected to the spray box, the slider is rotatably connected to the displacement nozzle, the inner wall of the slider is slidably connected to a slide bar, and the slide bar is fixedly connected to the spray box, and the bottom end of the slider is fixedly connected to a linkage bar; a curved distribution pipe is fixedly installed at the bottom end of the linkage bar, one end of the curved distribution pipe is fixedly connected to a smoke intake hose, and the smoke intake hose is fixedly connected to the spray box, and a plurality of gas delivery holes are opened at the bottom end of the curved distribution pipe. Limiting rings are rotatably connected to both sides of the slider, and the two limiting rings are fixedly connected to the displacement nozzle; the two limiting rings are symmetrically arranged about the slider.

[0012] When the present technology is in use, when the position-shifting nozzle moves to the left, the position-shifting nozzle will drive the two limit rings to move left, and the two limit rings will drive the slider to move left, and the slider will slide left along the outer wall of the slide rod, and the multiple gas delivery holes on the curved distribution pipe can move left. When the position-shifting nozzle moves to the right, it will drive the two limit rings to move right synchronously, and the two limit rings will cause the slider to move right, and the slider will drive the linkage bar to move right, and the linkage bar will cause the curved distribution pipe to move right. As the position-shifting nozzle continues to move back and forth left and right, the curved distribution pipe can continue to move back and forth left and right, so that the high-temperature flue gas can be evenly sprayed over a large area inside the spray cleaning box.

[0013] Technical effects and advantages of the present invention:

[0014] 1. The present invention uses a transverse cross-displacement spraying mechanism. The displacement motor drives the displacement frame to rotate clockwise, the displacement frame drives two limit sliding posts to rotate clockwise, the limit sliding post drives the push block to move right, and the other limit sliding post drives the other push block to move left, the displacement nozzle drives multiple cross nozzles to move right, and the multiple cross nozzles on the other displacement nozzle move left. When the displacement frame rotates to positive thirty degrees, the displacement motor drives the displacement frame to rotate counterclockwise, the displacement frame drives the limit sliding post to move left, and the other limit sliding post moves right. The multiple cross nozzles on the displacement nozzle and the multiple cross nozzles on the other displacement nozzle can perform cross-lateral reciprocating displacement movement, and the sprayed water body can realize large-area flow contact with high-temperature flue gas, and the flue gas spray pretreatment is more thorough, which greatly improves the flue gas spray pretreatment effect of the production enterprise.

[0015] 2. The present invention adopts a vertical cross-displacement spraying mechanism. The driving motor drives the bidirectional screw to rotate forward. The bidirectional screw drives the two socket blocks to approach each other under the action of the thread transmission force. The displacement nozzle drives multiple cross nozzles to rotate counterclockwise, and the other displacement nozzle drives multiple cross nozzles to rotate clockwise. When the number of rotations sensed by the rotation sensor is the same as the number of rotations set by the controller, the bidirectional screw drives in the reverse direction, the socket block moves left, and the other socket block moves right. The multiple cross nozzles on the displacement nozzle can rotate counterclockwise, while the multiple cross nozzles on the other displacement nozzle can rotate clockwise. The multiple cross nozzles on the displacement nozzle and the multiple cross nozzles on the other displacement nozzle can perform vertical cross-displacement reciprocating spraying, which can realize large-area flow contact with high-temperature flue gas, and the spray pretreatment is more thorough, which greatly improves the flue gas spray pretreatment effect of the production enterprise.

[0016] 3. The present invention utilizes a displacement conveying spraying mechanism. When the displacement nozzle moves to the left, the displacement nozzle will drive the two limit rings to move left, and the linkage bar will drive the curved distribution pipe to move left. The multiple gas delivery holes on the curved distribution pipe can move left. The displacement nozzle moves right and drives the two limit rings to move right synchronously. The two limit rings cause the slider to move right, and the linkage bar causes the curved distribution pipe to move right. The high-temperature flue gas ejected from the multiple gas delivery holes can reciprocate left and right to overflow over a large area. The water body and the high-temperature flue gas can achieve large-area flow contact spraying, and the spraying effect is better.

[0017] According to the mutual influence of the above multiple effects, firstly, the multiple cross nozzles on the displacement nozzle and the multiple cross nozzles on another displacement nozzle can perform cross-lateral reciprocating displacement movement, and secondly, the multiple cross nozzles on the displacement nozzle and the multiple cross nozzles on another displacement nozzle can perform vertical cross-displacement reciprocating spraying, and at the same time, the high-temperature flue gas ejected from the multiple gas delivery holes can reciprocate left and right to overflow and contact over a large area. In summary, the ejected water body can achieve large-area, cross-flow contact with high-temperature flue gas, and the flue gas spray pretreatment is more thorough, greatly improving the flue gas spray pretreatment effect of production enterprises. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the flue gas emission pretreatment device of the production enterprise of the present invention.

[0019] Figure 2 It is a schematic diagram of the partial structure of the connection between the spray box and the bracket of the present invention.

[0020] Figure 3 It is a schematic diagram of the cross-sectional structure of the flue gas emission pretreatment device of a production enterprise according to the present invention.

[0021] Figure 4 It is a schematic diagram of the partial structure of the connection between the variable nozzle and the cross nozzle of the present invention.

[0022] Figure 5 It is a schematic diagram of the vertical cross-section structure of the flue gas emission pretreatment device of a production enterprise of the present invention.

[0023] Figure 6 It is a schematic diagram of the local structure of the vertical section of the connection between the displacement nozzle and the convex strip sleeve of the present invention.

[0024] Figure 7 It is a schematic diagram of the partial structure of the connection between the frame plate and the bidirectional screw of the present invention from a front view.

[0025] Figure 8 It is a schematic diagram of the partial structure of the vertical section of the connection between the spray box and the slide rod of the present invention when viewed from above.

[0026] Fig. 9 It is a schematic diagram of the partial structure of the connection between the variable position nozzle and the limiting ring of the present invention.

[0027] Fig.10 It is a schematic diagram of the partial structure of the connection between the linkage strip and the curved distribution pipe of the present invention when viewed from above.

[0028] The accompanying drawings are marked as follows: 1. spray box; 2. bracket; 3. displacement motor; 4. displacement frame; 5. limit sliding column; 6. push block; 7. limit rotating shaft; 8. groove sleeve column; 9. displacement nozzle; 10. cross nozzle; 11. convex strip sleeve; 12. displacement angle sensor; 13. support plate; 14. delivery hose; 15. delivery pump; 16. controller; 17. electric valve; 18. mounting plate; 19. nozzle; 20. frame plate; 21. bidirectional screw; 22. drive motor; 23. socket block; 24. rack; 25. gear; 26. ring groove; 27. concave positioning column; 28. support bar; 29. ​​rotation sensor; 30. support block; 31. slider; 32. slide bar; 33. linkage bar; 34. flue gas intake hose; 35. curved distribution pipe; 36. gas delivery hole; 37. limit ring. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] As attached Figure 1-10 A flue gas emission pretreatment device for a production enterprise is shown, and the flue gas emission pretreatment device for the production enterprise is provided with a horizontal cross-displacement spraying mechanism, a vertical cross-displacement spraying mechanism, and a displacement conveying spraying mechanism. The arrangement of each mechanism can enable the sprayed water to achieve a large area, cross-flow contact with high-temperature flue gas, and the flue gas spray pretreatment is more thorough, greatly improving the flue gas spray pretreatment effect of the production enterprise. The specific structural arrangement of each mechanism is as follows.

[0031] In this technical solution, as shown in the attached Figure 1-5 As shown, the output end of the displacement motor 3 is provided with a transverse cross displacement spraying mechanism; the transverse cross displacement spraying mechanism includes a displacement frame 4 fixedly arranged at the output end of the displacement motor 3, and the inner wall of the displacement frame 4 is slidably connected with two limit sliding columns 5, the top of each limit sliding column 5 is fixedly connected with a push block 6, and one side of the push block 6 is fixedly installed with a limit rotating shaft 7; the outer wall of the limit rotating shaft 7 is slidably connected with a groove sleeve column 8, and one end of the groove sleeve column 8 is fixedly connected with a displacement nozzle 9, the displacement nozzle 9 is slidably connected to the spray box 1, and the outer wall of the displacement nozzle 9 is fixedly connected with a plurality of cross nozzles 10 at a position inside the spray box 1; the outer wall of the displacement nozzle 9 is fixedly connected with a convex strip sleeve 11 near the position of the groove sleeve column 8, and a vertical cross displacement spraying mechanism is provided below the bracket 2; a displacement conveying spraying mechanism is provided on one side of one of the cross nozzles 10.

[0032] In this technical solution, as shown in the attached Figure 1-4 As shown, a displacement angle sensor 12 is fixedly installed on the lower surface of the displacement frame 4, and the center point of the output end of the displacement angle sensor 12 is on the same vertical line as the center point of the output end of the displacement motor 3; a support plate 13 is installed on one side of the displacement angle sensor 12, and the bracket 2 and the displacement angle sensor 12 are fixedly connected to the support plate 13, so that the support plate 13 is supported by the bracket 2, and the support plate 13 supports the displacement angle sensor 12. When the displacement angle sensor 12 senses positive thirty degrees, the controller 16 starts the displacement motor 3 to drive counterclockwise, so that the rotation direction of the displacement motor 3 can be switched according to the specified angle.

[0033] A delivery hose 14 is provided at the top of the outer wall of the displacement nozzle 9, and the two displacement nozzles 9 are fixedly connected to the delivery hose 14. A delivery pump 15 is fixedly installed at the bottom end of the delivery hose 14, and the delivery pump 15 is fixedly connected to the spray tank 1, so that the delivery pump 15 can deliver water to the delivery hose 14, and the water is diverted to the inside of the two displacement nozzles 9 through the delivery hose 14 to realize the pressurization and diversion operation.

[0034] The bottom end of the spray box 1 is threadedly connected to an electric valve 17, and mounting plates 18 are fixedly connected to both sides of the outer wall of the spray box 1 and near the position of the electric valve 17. The outer wall of the spray box 1 and the adjacent side of the mounting plate 18 are fixedly connected to a controller 16, so that the two mounting plates 18 can provide support for the spray box 1. The controller 16 can open the electric valve 17, so that the sewage inside the spray box 1 is discharged along the electric valve 17 to the special sewage treatment pipeline of the production enterprise for subsequent sewage treatment operations. The outer wall of each cross nozzle 10 is provided with a plurality of nozzles 19, and the plurality of nozzles 19 are arranged in a circular ring with equal spacing, so that the pressurized water body can be transported to the plurality of nozzles 19 by the cross nozzle 10, and the pressurized atomization and spraying are realized through the plurality of nozzles 19, so as to realize the atomization and spraying operation of the water body.

[0035] In this technical solution, as shown in the attached Figure 5-7 As shown, the vertical cross-displacement spraying mechanism includes a frame plate 20 arranged below the bracket 2; the frame plate 20 is fixedly connected to the spray box 1, and the inner wall of the frame plate 20 is rotatably connected to a bidirectional screw 21, and one end of the frame plate 20 is fixedly installed with a driving motor 22, and the driving motor 22 is used to drive the bidirectional screw 21 to rotate, and the two threads on the outer wall of the bidirectional screw 21 are opposite and symmetrical; the outer wall of the bidirectional screw 21 is threadedly connected to two socket blocks 23, and a rack 24 is fixedly installed on the top of each socket block 23, and the bottom end of the inner wall of the rack 24 is meshingly connected to a gear 25, and the gear 25 is slidably connected to the convex strip sleeve 11.

[0036] An annular groove 26 is provided on both sides of the gear 25, and a concave positioning column 27 is rotatably connected to the inner wall of the annular groove 26, and a support bar 28 is provided on the upper surface of the concave positioning column 27. The two concave positioning columns 27 are fixedly connected to the support bar 28, and the support bar 28 is fixedly connected to the bracket 2. A rotation sensor 29 is fixedly installed at one end of the bidirectional screw 21, and a support block 30 is provided on the lower surface of the rotation sensor 29. The frame plate 20 and the rotation sensor 29 are fixedly connected to the support block 30. The sleeve blocks 23 are slidably connected to the frame plate 20, and the inner wall of the frame plate 20 and the outer wall of the sleeve block 23 are both smooth surfaces.

[0037] In this technical solution, as shown in the attached Figure 8-10 As shown, the displacement conveying spraying mechanism includes a slider 31 arranged on one side of one of the cross nozzles 10; the slider 31 is slidably connected to the spray box 1, the slider 31 is rotatably connected to the displacement nozzle 9, the inner wall of the slider 31 is slidably connected to a slide bar 32, and the slide bar 32 is fixedly connected to the spray box 1, and the bottom end of the slider 31 is fixedly connected to a linkage bar 33;

[0038] A curved distribution pipe 35 is fixedly installed at the bottom end of the linkage bar 33, one end of the curved distribution pipe 35 is fixedly connected to a smoke inlet hose 34, and the smoke inlet hose 34 is fixedly connected to the spray box 1, and a plurality of gas delivery holes 36 are opened at the bottom end of the curved distribution pipe 35. Limiting rings 37 are rotatably connected to both sides of the slider 31, and the two limiting rings 37 are fixedly connected to the variable position nozzle 9; the two limiting rings 37 are symmetrically arranged about the slider 31.

[0039] The method of using the flue gas emission pretreatment device of the present invention is as follows:

[0040] First, when the present invention is installed, the two mounting plates 18 provide support to the spray box 1, and the input end of the delivery pump 15 is docked on the water outlet pipe after the wastewater treatment of the production enterprise. At the same time, one end of the flue gas intake hose 34 is docked on the flue gas delivery pipe of the production enterprise, so that the high-temperature flue gas is transported along the flue gas intake hose 34, and is transported by the flue gas intake hose 34 to the curved distribution pipe 35, and then poured into the multiple gas delivery holes 36 through the curved distribution pipe 35. The high-temperature flue gas is sprayed into the spray box 1 through the multiple gas delivery holes 36.

[0041] Secondly, when the present invention performs lateral cross-displacement spraying, the controller 16 starts the delivery pump 15, the delivery pump 15 delivers water to the delivery hose 14, and the water is diverted to the two displacement nozzles 9 through the delivery hose 14, and then delivered to multiple cross nozzles 10 through the displacement nozzles 9. The cross nozzles 10 then deliver the pressurized water to multiple nozzles 19, and the pressurized atomized water is sprayed out through the multiple nozzles 19. The shifting motor 3 drives the shifting frame 4 to rotate clockwise, the shifting frame 4 drives the two limit sliding columns 5 to rotate clockwise, the limit sliding column 5 drives the push block 6 to move right, and the other limit sliding column 5 drives the other push block 6 to move left, the push block 6 drives the limit rotating shaft 7 to move right, the limit rotating shaft 7 makes the groove sleeve column 8 move right, the groove sleeve column 8 drives the convex strip sleeve 11 to move right, the convex strip sleeve 11 moves right along the inner wall of the gear 25, the shifting nozzle 9 drives the multiple cross nozzles 10 to move right, and the multiple cross nozzles 10 on the other shifting nozzle 9 move left, the multiple cross nozzles 10 form a transverse cross-shift spray water body, so that the water body can have a large-area flow contact with the high-temperature flue gas.

[0042] When the displacement frame 4 rotates to positive thirty degrees, the support plate 13 is supported by the bracket 2, and the support plate 13 supports the displacement angle sensor 12. When the displacement angle sensor 12 senses positive thirty degrees, the displacement motor 3 is started to drive counterclockwise through the controller 16, and the displacement motor 3 drives the displacement frame 4 to rotate counterclockwise, and the displacement frame 4 drives the limit slide 5 to move left, while the other limit slide 5 moves right. The limit slide 5 drives the push block 6 to make the limit shaft 7 move left, the limit shaft 7 drives the slot sleeve column 8 to move left, the slot sleeve column 8 drives the displacement nozzle 9 to move left, the displacement nozzle 9 makes the multiple cross nozzles 10 move left crosswise, and at the same time, the multiple cross nozzles 10 on the other displacement nozzle 9 can move right crosswise, and the multiple cross nozzles 10 on the displacement nozzle 9 and the multiple cross nozzles 10 on the other displacement nozzle 9 perform crosswise lateral displacement movement. When the displacement angle sensor 12 senses that the displacement frame 4 is reversed by thirty degrees, the controller 16 continues to start the displacement motor 3 for clockwise driving. As the displacement frame 4 continues to rotate back and forth, the multiple cross nozzles 10 on the displacement nozzle 9 and the multiple cross nozzles 10 on another displacement nozzle 9 perform cross-lateral displacement and reciprocating movement, so that the sprayed water can flow over a large area to contact the high-temperature flue gas, fully realizing the spray-washing pretreatment operation.

[0043] At the same time, when the present invention performs vertical cross-displacement spraying, the controller 16 starts the drive motor 22 at the same time, and the drive motor 22 drives the bidirectional screw 21 to rotate forward, and the bidirectional screw 21 rotates forward inside the frame plate 20, and the bidirectional screw 21 drives the two sleeve blocks 23 to approach each other under the action of the thread transmission force, and at the same time the sleeve block 23 drives the rack 24 to move right, and the other rack 24 moves left, and the rack 24 drives the gear 25 to rotate counterclockwise, and the annular groove 26 inside the gear 25 can be on the concave positioning column 27. The bracket 2 supports the support bar 28, the support bar 28 supports the two concave positioning columns 27, and the gear 25 drives the convex strip sleeve 11 to rotate counterclockwise, the convex strip sleeve 11 drives the displacement nozzle 9 to rotate counterclockwise, the displacement nozzle 9 drives the slot sleeve column 8 to rotate counterclockwise, the slot sleeve column 8 rotates counterclockwise at the upper limit of the outer wall of the limit rotating shaft 7, the displacement nozzle 9 drives the multiple cross nozzles 10 to rotate counterclockwise, and another displacement nozzle 9 drives the multiple cross nozzles 10 to rotate clockwise. When the multiple cross nozzles 10 rotate to a horizontal state, the support block 30 is supported by the frame plate 20, and the support block 30 supports the rotation sensor 29, and the rotation sensor 29 senses the number of rotations of the bidirectional screw 21. When the number of rotations sensed by the rotation sensor 29 is the same as the number of rotations set by the controller 16, the controller 16 continues to start the drive motor 22 to drive the bidirectional screw 21 in reverse direction.

[0044] Then the bidirectional screw 21 drives the two socket blocks 23 away from each other under the action of the thread transmission force, the socket block 23 moves left, the other socket block 23 moves right, the socket block 23 drives the rack 24 to move left, the rack 24 makes the gear 25 rotate clockwise, the gear 25 drives the convex sleeve 11 to rotate clockwise, the convex sleeve 11 drives the displacement nozzle 9 to rotate clockwise and the other displacement nozzle 9 to rotate counterclockwise, the multiple cross nozzles 10 on the displacement nozzle 9 can rotate counterclockwise, and the multiple cross nozzles 10 on the other displacement nozzle 9 can rotate clockwise. As the drive motor 22 continuously switches different rotation directions, the multiple cross nozzles 10 on the displacement nozzle 9 and the multiple cross nozzles 10 on the other displacement nozzle 9 can perform vertical cross displacement reciprocating spraying, so that the water body and the smoke can achieve large-area flow contact spraying.

[0045] At the same time, when the present invention performs the displacement conveying spraying mechanism, when the displacement nozzle 9 rotates, it will drive the two limit rings 37 to rotate on both sides of the slider 31. At the same time, when the displacement nozzle 9 moves to the left, the displacement nozzle 9 will drive the two limit rings 37 to move left. The two limit rings 37 limit and drive the slider 31 to move left. The slider 31 makes the linkage bar 33 move left, and the slider 31 slides to the left along the outer wall of the slide rod 32, and the linkage bar 33 drives the curved distribution pipe 35 to move left. The multiple gas delivery holes 36 on the curved distribution pipe 35 can move left, and the gas delivery holes 36 will displace and convey the ejected smoke.

[0046] When the displacement nozzle 9 moves rightward, it will drive the two limit rings 37 to move rightward synchronously. The two limit rings 37 make the slider 31 move rightward, and the slider 31 moves rightward along the outer wall of the slide bar 32. At the same time, the slider 31 drives the linkage bar 33 to move rightward, and the linkage bar 33 makes the curved distribution pipe 35 move rightward. As the displacement nozzle 9 continuously moves back and forth left and right, the curved distribution pipe 35 can continuously move back and forth left and right, so that the high-temperature flue gas ejected from the multiple gas delivery holes 36 can reciprocate left and right and overflow over a large area, so that the high-temperature flue gas can be uniformly sprayed over a large area inside the spray box 1. At the same time, the water body and the high-temperature flue gas can realize large-area flow contact spraying, and the spraying effect is better.

[0047] The contents not described in detail in the specification belong to the prior art known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used. In this technical solution, the electrical control components not mentioned are not shown in the figure because they belong to the prior art and will not be described here.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A flue gas emission pretreatment device for a production enterprise, comprising a spray box (1), a bracket (2) and a position-changing motor (3), wherein the bracket (2) is fixed to one side of the spray box (1), and the position-changing motor (3) is fixed to one end of the bracket (2), characterized in that: The output end of the position changing motor (3) is provided with a transverse cross position changing spray washing mechanism; The transverse cross-position spray washing mechanism comprises a position changing frame (4) fixedly arranged at the output end of the position changing motor (3), and the inner wall of the position changing frame (4) is slidably connected to two limit sliding posts (5), the top end of each limit sliding post (5) is fixedly connected to a push block (6), and one side of the push block (6) is fixedly installed with a limit rotating shaft (7); The outer wall of the position-limiting rotating shaft (7) is slidably connected to a slot sleeve column (8), one end of the slot sleeve column (8) is fixedly connected to a position-changing nozzle (9), the position-changing nozzle (9) is slidably connected to the spray box (1), and the outer wall of the position-changing nozzle (9) is fixedly connected to a plurality of cross nozzles (10) located inside the spray box (1); A convex strip sleeve (11) is fixedly connected to the outer wall of the displacement spray pipe (9) and close to the position of the slot sleeve column (8), and a vertical cross displacement spray washing mechanism is provided below the bracket (2); A displacement conveying and spraying mechanism is provided on one side of one of the cross nozzles (10).

2. The flue gas emission pretreatment device for production enterprises according to claim 1 is characterized in that: The two limit slides (5) are symmetrically arranged with respect to the position changing motor (3), and the outer wall of the limit slide (5) and the inner wall of the position changing frame (4) are both smooth surfaces.

3. The flue gas emission pretreatment device for production enterprises according to claim 1 is characterized in that: A displacement angle sensor (12) is fixedly mounted on the lower surface of the displacement frame (4), and the center point of the output end of the displacement angle sensor (12) and the center point of the output end of the displacement motor (3) are located on the same vertical line; A support plate (13) is installed on one side of the displacement angle sensor (12), and the bracket (2) and the displacement angle sensor (12) are both fixedly connected to the support plate (13).

4. The flue gas emission pretreatment device for production enterprises according to claim 1 is characterized in that: A delivery hose (14) is provided at the top of the outer wall of the position-changing nozzle (9), and the two position-changing nozzles (9) are fixedly connected to the delivery hose (14). A delivery pump (15) is fixedly installed at the bottom end of the delivery hose (14), and the delivery pump (15) is fixedly connected to the spray cleaning box (1).

5. The flue gas emission pretreatment device for production enterprises according to claim 1 is characterized in that: The bottom end of the spray box (1) is threadedly connected to an electric valve (17), and mounting plates (18) are fixedly connected to both sides of the outer wall of the spray box (1) and near the position of the electric valve (17), and a controller (16) is fixedly connected to the outer wall of the spray box (1) and located on a side adjacent to the mounting plate (18).

6. The flue gas emission pretreatment device for production enterprises according to claim 1 is characterized in that: The outer wall of each cross nozzle (10) is provided with a plurality of nozzles (19), and the plurality of nozzles (19) are arranged and distributed equidistantly in a circular ring.

7. The flue gas emission pretreatment device for production enterprises according to claim 1 is characterized in that: The vertical cross-displacement spray washing mechanism comprises a frame plate (20) arranged below the bracket (2); The frame plate (20) is fixedly connected to the spray box (1); the inner wall of the frame plate (20) is rotatably connected to a bidirectional screw (21); one end of the frame plate (20) is fixedly mounted with a drive motor (22); the drive motor (22) is used to drive the bidirectional screw (21) to rotate; and the outer wall of the bidirectional screw (21) has two threads that are opposite and symmetrically arranged. The outer wall of the bidirectional screw (21) is threadedly connected to two sleeve blocks (23), the top of each sleeve block (23) is fixedly mounted with a rack (24), the bottom end of the inner wall of the rack (24) is meshingly connected with a gear (25), and the gear (25) is slidably connected to the convex sleeve (11); Both sides of the gear (25) are provided with an annular groove (26), and the inner wall of the annular groove (26) is rotatably connected with a concave positioning column (27), the upper surface of the concave positioning column (27) is provided with a support bar (28), the two concave positioning columns (27) are fixedly connected to the support bar (28), and the support bar (28) is fixedly connected to the bracket (2); A rotation sensor (29) is fixedly mounted on one end of the bidirectional screw (21), a support block (30) is provided on the lower surface of the rotation sensor (29), and the frame plate (20) and the rotation sensor (29) are both fixedly connected to the support block (30).

8. The flue gas emission pretreatment device for production enterprises according to claim 7 is characterized in that: The sleeve blocks (23) are slidably connected to the frame plate (20), and the inner wall of the frame plate (20) and the outer wall of the sleeve blocks (23) are both smooth surfaces.

9. The flue gas emission pretreatment device for production enterprises according to claim 1, characterized in that: The displacement conveying spraying mechanism comprises a slider (31) arranged on one side of one of the cross nozzles (10); The slider (31) is slidably connected to the spray box (1), the slider (31) is rotatably connected to the displacement nozzle (9), the inner wall of the slider (31) is slidably connected to a slide bar (32), and the slide bar (32) is fixedly connected to the spray box (1), and the bottom end of the slider (31) is fixedly connected to a linkage bar (33); A curved distribution pipe (35) is fixedly mounted at the bottom end of the linkage strip (33); one end of the curved distribution pipe (35) is fixedly connected to a smoke intake hose (34); the smoke intake hose (34) is fixedly connected to the spray cleaning box (1); and a plurality of gas delivery holes (36) are provided at the bottom end of the curved distribution pipe (35).

10. The flue gas emission pretreatment device for production enterprises according to claim 9, characterized in that: Both sides of the slider (31) are rotatably connected to limit rings (37), and the two limit rings (37) are fixedly connected to the variable position nozzle (9); The two limiting rings (37) are symmetrically arranged with respect to the slider (31).

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