An exhaust gas cooling and dust removal device for industrial smelting

Abstract

The present invention relates to the technical field of tail gas treatment, and provides a tail gas cooling and dust removal device for industrial smelting, which includes a cooling and dust removal tower, a dust removal and filtration assembly, a rotating assembly, a transmission mechanism, a fixed gear ring, a driving part, a base and a control display. The dust removal and filtration assembly includes a filter element, a rotating pipe and a curve groove. The included angle between two filter elements is 90 degrees. The filter element includes a filter mesh cover and a filling layer, and the filling layer is located inside the filter mesh cover. Both the curve groove and the fixed gear ring are in transmission connection with the transmission mechanism. By controlling several filter elements to rotate around the axis of the cooling and dust removal tower and rotate around the axis of the rotating pipe, the purpose of flipping the dynamic filtration plane composed of several fan-shaped filter elements by 90 degrees is achieved. On the one hand, it can automatically remove the adhered particulate matter by using the centrifugal force and the purifying agent sprayed by the high-pressure spray valve. On the other hand, it can not affect the efficiency of tail gas cooling and dust removal during the process of removing particulate matter, and has the characteristics of stable dust removal efficiency and good self-cleaning effect.

Description

Technical Field

[0001] The present invention relates to the technical field of tail gas treatment, and particularly to a tail gas cooling and dust removal device for industrial smelting. Background Art

[0002] Industrial tail gas refers to the general term for various pollutant gas-containing gases discharged into the air during fuel combustion and production processes in enterprise factory areas. These waste gases include: carbon dioxide, carbon disulfide, hydrogen sulfide, fluorides, nitrogen oxides, chlorine, hydrogen chloride, carbon monoxide, sulfuric acid (mist), lead, mercury, beryllium compounds, soot, and production dust.

[0003] Patent No. CN117138459B discloses a device for cooling and dust removal of tail gas for steelmaking industry, including a dust removal frame, an exhaust gas cooling cylinder, an exhaust gas connector, a cold air connector, a counterflush type centrifugal separation mechanism, and a tubular clamping and purification mechanism. The exhaust gas cooling cylinders are symmetrically arranged on the inner walls at both ends of the dust removal frame. The exhaust gas connector is communicatively arranged on the side wall of the exhaust gas cooling cylinder. The cold air connector penetrates through the dust removal frame and is communicatively arranged on both sides of the exhaust gas cooling cylinder. The counterflush type centrifugal separation mechanism is arranged between the exhaust gas cooling cylinders. The tubular clamping and purification mechanism is arranged outside the exhaust gas cooling cylinder. The present invention provides a device for cooling and dust removal of tail gas for steelmaking industry that can adjust the filtering structure according to the exhaust gas flow rate and can ensure that the impact force intensity between exhaust gases is lower than the centrifugal force intensity received by impurities through monitoring the exhaust gas pressure, so as to ensure that impurities in the exhaust gas can be fully removed.

[0004] The above tail gas cooling and dust removal device still has the following defects when in use: on the one hand, the method of only using centrifugal force to clean impurities cannot effectively and thoroughly remove the adhered impurities; on the other hand, during the cleaning process, due to the increase in the resistance of the tail gas flow and the reduction in the contact surface between the tail gas and the filtering structure, the efficiency of tail gas cooling and dust removal is reduced. Summary of the Invention

[0005] The purpose of the present invention is to provide a tail gas cooling and dust removal device for industrial smelting, aiming to solve the problems existing when using the existing tail gas cooling and dust removal device for industry.

[0006] To achieve the above purpose, the present invention provides the following technical solution. A tail gas cooling and dust removal device for industrial smelting includes a cooling and dust removal tower, a purifying agent discharge part, a tail gas inlet pipe, a base, and a control display. Both the cooling and dust removal tower and the control display are fixedly connected to the base. The purifying agent discharge part is located inside the cooling and dust removal tower. The tail gas inlet pipe is fixedly connected to the cooling and dust removal tower. It further includes:

[0007] An annular guide rail and a fixed gear ring provided on the inner wall of the cooling and dust removal tower;

[0008] A dust removal and filtration component that is centrosymmetric about the purifying agent discharge part. The dust removal and filtration component includes a filter element, a rotating tube, and a curved groove. Both of the two filter elements are fixedly connected to the rotating tube. The inner wall of the rotating tube is provided with a curved groove. The included angle between the two filter elements is 90 degrees. The filter element includes a filter mesh cover and a filling layer, and the filling layer is located inside the filter mesh cover;

[0009] A rotating component rotatably connected within an annular guide rail, and the rotating tube is movably connected to the rotating component;

[0010] A transmission mechanism movably connected to the rotating component, and both the curved groove and the fixed gear ring are in transmission connection with the transmission mechanism;

[0011] A driving part fixedly connected to the outer wall of the cooling and dust removal tower, and the rotating component is in transmission connection with the driving part.

[0012] As a further solution of the present invention, the transmission mechanism includes a transmission ring and an adjustment part. The surface of the transmission ring is provided with a tooth groove and a tooth pin. The curved groove is in sliding connection with the tooth pin. The transmission ring is rotatably connected within the rotating component. One end of the adjustment part is in transmission connection with the tooth groove, and the fixed gear ring is in transmission connection with the other end of the adjustment part.

[0013] As a further solution of the present invention, the adjustment part includes a first transmission gear, a transmission shaft, a second transmission gear, an electromagnet, a tube sleeve, a return spring, a magnetic ring, a limit block, and a key bar. The surface of the transmission shaft is provided with a key bar. The first transmission gear and the limit block are respectively fixedly connected to both ends of the transmission shaft. The surface of the second transmission gear is inlaid with a magnetic ring. The surface of the second transmission gear is provided with a key groove in sliding connection with the key bar. The electromagnet is inlaid on the surface of the tube sleeve. The return spring is connected between the second transmission gear and the tube sleeve. The tooth groove and the fixed gear ring are respectively in transmission connection with the first transmission gear and the second transmission gear.

[0014] As a further solution of the present invention, the purifying agent discharge part includes a discharge pipe, a high-pressure spray valve, and a seal. The discharge pipe is fixedly connected to the cooling and dust removal tower. A plurality of high-pressure spray valves are connected to the surface of the discharge pipe. The seal is fixedly sleeved on the surface of the discharge pipe. The filter element is in sliding contact with the surface of the seal.

[0015] As a further solution of the present invention, the rotating component includes a rotating gear ring, a limit sleeve, a limit ring, an avoidance opening, and a bracket. The rotating gear ring is rotatably connected within the annular guide rail. The limit sleeve, the limit ring, and the bracket are all fixedly connected to the rotating gear ring. The driving part is in transmission connection with the rotating gear ring. The transmission ring is rotatably connected within the limit sleeve. The surface of the rotating tube is provided with an annular groove. The limit ring is in rotational connection with the annular groove. The surface of the limit sleeve is provided with an avoidance opening. The transmission shaft is rotatably connected to the bracket. The tube sleeve is fixedly connected to the bracket.

[0016] As a further solution of the present invention, the cross-section of the filter element is fan-shaped, and the included angle of the filter element is 30 degrees.

[0017] As a further solution of the present invention, a smoke exhaust port and a waste liquid pool are respectively arranged at the upper and lower ends of the cooling and dust removal tower, and a waste discharge pipe is fixedly connected to the bottom of the waste liquid pool.

[0018] The beneficial effects of the present invention are as follows: by controlling several filter elements to rotate around the axis of the cooling and dust removal tower and around the axis of the rotating pipe, the purpose of controlling the dynamic filter plane composed of several filter elements to flip 90 degrees is achieved. On the one hand, it can automatically remove the adhered particulate matter by using centrifugal force and the purifying agent sprayed by the high-pressure spray valve. On the other hand, it can not affect the efficiency of tail gas cooling and dust removal during the process of removing particulate matter, and has the characteristics of stable dust removal efficiency, good self-cleaning effect and increased service life. Description of the Drawings

[0019] Figure 1 Is the first three-dimensional view of the present invention.

[0020] Figure 2 Is the exploded view of the present invention.

[0021] Figure 3 Is the three-dimensional view of the dust removal and filtration component in the embodiment of the present invention.

[0022] Figure 4 Is the plane cross-sectional view of the dust removal and filtration component in the embodiment of the present invention.

[0023] Figure 5 Is the three-dimensional view of the rotating component in the embodiment of the present invention.

[0024] Figure 6 Is the assembly drawing of the dust removal and filtration component and the transmission mechanism in the embodiment of the present invention.

[0025] Figure 7 Is the partial cross-sectional view of the dust removal and filtration component, the rotating component and the transmission mechanism in the embodiment of the present invention.

[0026] Figure 8 Is the assembly drawing of the purifying agent discharge part, the dust removal and filtration component, the rotating component and the transmission mechanism in the embodiment of the present invention.

[0027] Figure 9 Is the partial cross-sectional view of the present invention.

[0028] Figure 10 Is for the invention Figure 9 The partial enlarged view at a in.

[0029] Figure 11 Is the plane cross-sectional view of the present invention.

[0030] Reference numerals: 1 - Cooling and dust removal tower, 11 - Annular guide rail, 12 - Fixed gear ring, 13 - Smoke exhaust port, 14 - Waste liquid pool, 15 - Waste discharge pipe, 2 - Purifying agent discharge part, 21 - Discharge pipe, 22 - High-pressure spray valve, 23 - Sealing member, 3 - Dust removal and filtration assembly, 31 - Filter element, 311 - Filter screen cover, 312 - Filling layer, 32 - Rotating pipe, 33 - Curved groove, 34 - Annular groove, 4 - Driving part, 5 - Rotating assembly, 51 - Rotating gear ring, 52 - Limiting sleeve, 53 - Limiting ring, 54 - Avoidance opening, 55 - Bracket, 6 - Transmission mechanism, 61 - Transmission ring, 611 - Tooth groove, 612 - Tooth pin, 62 - Adjusting part, 621 - First transmission gear, 622 - Transmission shaft, 623 - Second transmission gear, 624 - Electromagnet, 625 - Pipe sleeve, 626 - Return spring, 627 - Magnetic ring, 628 - Limiting block, 629 - Key bar, 7 - Tail gas inlet pipe, 8 - Base, 9 - Control display. Detailed implementation manners

[0031] In order to make the objectives, technical solutions and advantages of the present invention clearer, the following further details the present invention in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0032] The following describes in detail the specific implementation of the present invention in conjunction with specific embodiments.

[0033] Please refer to Figures 1 to 11 , in an embodiment of the present invention, an exhaust gas cooling and dust removal device for industrial smelting includes a cooling and dust removal tower 1, a purifying agent discharge part 2, a tail gas inlet pipe 7, a base 8 and a control display 9. The cooling and dust removal tower 1 and the control display 9 are both fixedly connected to the base 8. The purifying agent discharge part 2 is located inside the cooling and dust removal tower 1. The tail gas inlet pipe 7 is fixedly connected to the cooling and dust removal tower 1. It further includes:

[0034] An annular guide rail 11 and a fixed gear ring 12 provided on the inner wall of the cooling and dust removal tower 1;

[0035] A dust removal and filtration assembly 3 that is centrosymmetric about the center of the purifying agent discharge part 2. The dust removal and filtration assembly 3 includes a filter element 31, a rotating pipe 32 and a curved groove 33. The two filter elements 31 are both fixedly connected to the rotating pipe 32. The inner wall of the rotating pipe 32 is provided with a curved groove 33. The included angle between the two filter elements 31 is 90 degrees. The filter element 31 includes a filter screen cover 311 and a filling layer 312. The filling layer 312 is located inside the filter screen cover 311;

[0036] A rotating assembly 5 rotatably connected in the annular guide rail 11. The rotating pipe 32 is movably connected to the rotating assembly 5;

[0037] A transmission mechanism 6 movably connected to the rotating assembly 5, and both the curve groove 33 and the fixed gear ring 12 are in transmission connection with the transmission mechanism 6;

[0038] A driving part 4 fixedly connected to the outer wall of the cooling and dust removal tower 1, and the rotating assembly 5 is in transmission connection with the driving part 4.

[0039] Please refer to Figure 11 , further, a smoke exhaust port 13 and a waste liquid pool 14 are respectively arranged at the upper and lower ends of the cooling and dust removal tower 1, and a waste discharge pipe 15 is fixedly connected to the bottom of the waste liquid pool 14.

[0040] In the embodiment of the present invention, the cross-section of the filter element 31 is fan-shaped, the included angle of the filter element 31 is 30 degrees, and an angle sensor is arranged on the surface of one of the rotating pipes 32 for monitoring the rotation angle of the filter element 31. The gas after cooling and dust removal is discharged out of the tower through the smoke exhaust port 13, and the purified waste liquid is discharged through the waste discharge pipe 15.

[0041] Please refer to Figures 6 to 8 , in an embodiment of the present invention, the transmission mechanism 6 includes a transmission ring 61 and an adjusting part 62. Tooth grooves 611 and tooth pins 612 are arranged on the surface of the transmission ring 61. The curve groove 33 is in sliding connection with the tooth pins 612. The transmission ring 61 is rotatably connected in the rotating assembly 5. One end of the adjusting part 62 is in transmission connection with the tooth grooves 611, and the fixed gear ring 12 is in transmission connection with the other end of the adjusting part 62.

[0042] Please refer to Figures 6 to 10 , further, the adjusting part 62 includes a first transmission gear 621, a transmission shaft 622, a second transmission gear 623, an electromagnet 624, a tube sleeve 625, a return spring 626, a magnetic ring 627, a limit block 628 and a key strip 629. A key strip 629 is arranged on the surface of the transmission shaft 622. The first transmission gear 621 and the limit block 628 are respectively fixedly connected to both ends of the transmission shaft 622. The magnetic ring 627 is inlaid on the surface of the second transmission gear 623. A key groove slidably connected with the key strip 629 is arranged on the surface of the second transmission gear 623. The electromagnet 624 is inlaid on the surface of the tube sleeve 625. The return spring 626 is connected between the second transmission gear 623 and the tube sleeve 625. The tooth grooves 611 and the fixed gear ring 12 are respectively in transmission connection with the first transmission gear 621 and the second transmission gear 623.

[0043] Please refer to Figures 7 to 10, Further, the rotating assembly 5 includes a rotating gear ring 51, a limiting sleeve 52, a limiting ring 53, an avoidance opening 54 and a bracket 55. The rotating gear ring 51 is rotatably connected within the annular guide rail 11. The limiting sleeve 52, the limiting ring 53 and the bracket 55 are all fixedly connected to the rotating gear ring 51. The driving part 4 is in transmission connection with the rotating gear ring 51. The transmission ring 61 is rotatably connected within the limiting sleeve 52. An annular groove 34 is provided on the surface of the rotating tube 32. The limiting ring 53 is rotatably connected to the annular groove 34. An avoidance opening 54 is provided on the surface of the limiting sleeve 52. The transmission shaft 622 is rotatably connected to the bracket 55. The pipe sleeve 625 is fixedly connected to the bracket 55.

[0044] In an embodiment of the present invention, when the electromagnet 624 is energized, since the energized electromagnet 624 is magnetically attached to the magnetic ring 627, the second transmission gear 623 is disengaged from the fixed gear ring 12. When the electromagnet 624 is de-energized, since the magnetic ring 627 loses the magnetic attraction of the electromagnet 624, the elastic force of the return spring 626 drives the second transmission gear 623 to be attached to the limiting block 628. At this time, the second transmission gear 623 is in transmission connection with the fixed gear ring 12.

[0045] Please refer to Figures 8 to 11 , In an embodiment of the present invention, the purifying agent discharging part 2 includes a discharge pipe 21, a high-pressure spray valve 22 and a seal 23. The discharge pipe 21 is fixedly connected to the cooling and dust-removing tower 1. A plurality of the high-pressure spray valves 22 are connected to the surface of the discharge pipe 21. The seal 23 is fixedly sleeved on the surface of the discharge pipe 21. The filter element 31 is in sliding contact with the surface of the seal 23.

[0046] In an embodiment of the present invention, the seal 23 is a rubber sleeve. The rubber sleeve is attached to the ends of a plurality of fan-shaped filter elements 31. The surfaces of a plurality of fan-shaped filter elements 31 are in contact with each other, thus ensuring the relative sealing of the filter surface formed by a plurality of filter elements 31. Furthermore, all the flue gas can pass through the filter elements 31 for dust removal treatment. Since the high-pressure spray valves 22 are distributed on the upper and lower sides of a plurality of filter elements 31, the mist-like purifying agent sprayed by the high-pressure spray valves 22 can cool the tail gas from the upper and lower sides of a plurality of filter elements 31. A temperature sensor is provided at the smoke exhaust place for monitoring the temperature parameter of the treated gas.

[0047] Working principle: Industrial tail gas enters the cooling and dust-removing tower 1 through the tail gas inlet pipe 7. The discharge pipe 21 fills the upper and lower sides of the horizontally arranged filter elements 31 with the purifying agent in a mist form through the high-pressure spray valves 22. On the one hand, it is used to neutralize or remove acidic substances in the industrial tail gas, and on the other hand, it is used to cool the industrial tail gas. When the tail gas passes through a plurality of horizontally arranged filter elements 31, the filter mesh cover 311 and the filling layer 312 are used to filter particulate matter and odor in the tail gas, thus playing the role of cooling and dust removal;

[0048] After a certain period of time, the control display 9 is used to control the driving part 4 to start. The driving part 4 controls the rotating assembly 5, the dust removal and filtration assembly 3 and the transmission mechanism 6 to rotate together around the axis of the cooling and dust removal tower 1 by rotating the toothed ring 51. The transmission mechanism 6 that rotates together drives the first transmission gear 621 to rotate around the transmission shaft 622 by means of the transmission connection between the second transmission gear 623 and the fixed toothed ring 12. The rotating first transmission gear 621 drives the transmission ring 61 to rotate in the limit sleeve 52 through the tooth groove 611. The rotating transmission ring 61 drives the rotating tube 32 to rotate clockwise by 90 degrees in the limit ring 53 through the tooth pin 612 and the curve groove 33. At this time, one filter element 31 of the unfiltered tail gas is in a horizontal state for filtering the tail gas, and the other filter element 31 adhered with particulate matter is in a vertically downward state. The control display 9 is used to control the electromagnet 624 to be energized. Since the energized electromagnet 624 is magnetically attached to the magnetic ring 627, the second transmission gear 623 is disengaged from the fixed toothed ring 12. At this time, the filter element 31 will not rotate continuously. Since the particulate matter on the surface of the vertically downward filter element 31 is located on the side of the filter element 31 close to the inner wall of the cooling and dust removal tower 1, the centrifugal force generated by the dust removal and filtration assembly 3 that continues to rotate around the axis of the cooling and dust removal tower 1 can separate the particulate matter on the surface of the filter element 31;

[0049] After the same period of time, the control display 9 is used again to control the driving part 4 to start, which is used to control the rotating assembly 5, the dust removal and filtration assembly 3 and the transmission mechanism 6 to rotate in the reverse direction around the axis of the cooling and dust removal tower 1. At this time, the filter element 31 rotates 90 degrees in the reverse direction to reset. The particulate matter on the surface of the other vertically upward filter element 31 is located on the side of the filter element 31 close to the high-pressure spray valve 22. When several vertically upward filter elements 31 rotate, the purifying agent sprayed by the high-pressure spray valve 22 can wash down the particulate matter. The dynamic filtration plane composed of several sector-shaped filter elements 31 can, on the one hand, automatically remove the adhered particulate matter by means of centrifugal force and the purifying agent sprayed by the high-pressure spray valve 22, and on the other hand, can not affect the efficiency of tail gas cooling and dust removal during the process of removing particulate matter. The gas after cooling and dust removal is discharged out of the tower through the smoke outlet 13, and the waste liquid after purification treatment is discharged through the waste discharge pipe 15.

[0050] In summary, the present application utilizes the structural design of the mutual cooperation among the dust removal and filtration assembly 3, the rotating assembly 5, the transmission mechanism 6, the fixed gear ring 12, and the driving part 4. By controlling the rotation of several filter elements 31 around the axis of the cooling and dust removal tower 1 and around the axis of the rotating pipe 32, the purpose of flipping the dynamic filtration plane formed by several filter elements 31 by 90 degrees is achieved. On the one hand, it can automatically remove the adhered particulate matter by using the centrifugal force and the purification agent sprayed by the high-pressure spray valve 22. On the other hand, it can ensure the efficiency of tail gas cooling and dust removal during the process of removing particulate matter, featuring stable dust removal efficiency, good self-cleaning effect, and extended service life.

[0051] For those skilled in the art, although several embodiments and examples of the present invention have been described, these embodiments and examples are presented as examples and are not intended to limit the scope of the invention. These new embodiments can be implemented in various other ways, and various omissions, substitutions, and changes can be made without departing from the gist of the invention.

[0052] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An exhaust gas cooling and dust removal device for industrial smelting, comprising a cooling and dust removal tower (1), a purifying agent discharging part (2), an exhaust gas inlet pipe (7), a base (8) and a control display (9). The cooling and dust removal tower (1) and the control display (9) are both fixedly connected to the base (8). The purifying agent discharging part (2) is located inside the cooling and dust removal tower (1). The exhaust gas inlet pipe (7) is fixedly connected to the cooling and dust removal tower (1), and is characterized in that, It further includes: An annular guide rail (11) and a fixed gear ring (12) arranged on the inner wall of the cooling and dust removal tower (1); A dust removal and filtration assembly (3) that is centrosymmetric about the center of the purifying agent discharge part (2). The dust removal and filtration assembly (3) includes a filter element (31), a rotating pipe (32), and a curve groove (33). The two filter elements (31) are both fixedly connected to the rotating pipe (32). A curve groove (33) is arranged on the inner wall of the rotating pipe (32). The included angle between the two filter elements (31) is 90 degrees. The filter element (31) includes a filter mesh cover (311) and a filling layer (312), and the filling layer (312) is located inside the filter mesh cover (311); A rotating assembly (5) rotatably connected in the annular guide rail (11), and the rotating pipe (32) is movably connected to the rotating assembly (5); A transmission mechanism (6) movably connected to the rotating assembly (5). The curve groove (33) and the fixed gear ring (12) are both in transmission connection with the transmission mechanism (6); A driving part (4) fixedly connected to the outer wall of the cooling and dust removal tower (1), and the rotating assembly (5) is in transmission connection with the driving part (4); The transmission mechanism (6) includes a transmission ring (61) and an adjusting part (62). Tooth grooves (611) and tooth pins (612) are arranged on the surface of the transmission ring (61). The curve groove (33) is in sliding connection with the tooth pins (612). The transmission ring (61) is rotatably connected inside the rotating assembly (X). One end of the adjusting part (62) is in transmission connection with the tooth grooves (611), and the fixed gear ring (12) is in transmission connection with the other end of the adjusting part (62); The adjusting part (62) includes a first transmission gear (621), a transmission shaft (622), a second transmission gear (623), an electromagnet (624), a pipe sleeve (625), a return spring (626), a magnetic ring (627), a limiting block (628), and a key strip (629). A key strip (629) is arranged on the surface of the transmission shaft (622). The first transmission gear (621) and the limiting block (628) are respectively fixedly connected to both ends of the transmission shaft (622). A magnetic ring (627) is inlaid on the surface of the second transmission gear (623). A key groove that is in sliding connection with the key strip (629) is arranged on the surface of the second transmission gear (623). The electromagnet (624) is inlaid on the surface of the pipe sleeve (625). The return spring (626) is connected between the second transmission gear (623) and the pipe sleeve (625). The tooth grooves (611) and the fixed gear ring (12) are respectively in transmission connection with the first transmission gear (621) and the second transmission gear (623).

2. The tail gas cooling and dust removal device for industrial smelting according to claim 1, wherein, The purifying agent discharge part (2) includes a discharge pipe (21), a high-pressure spray valve (22), and a seal (23). The discharge pipe (21) is fixedly connected to the cooling and dust removal tower (1). A plurality of high-pressure spray valves (22) are connected to the surface of the discharge pipe (21). The seal (23) is fixedly sleeved on the surface of the discharge pipe (21). The filter element (31) is in sliding contact with the surface of the seal (23).

3. The tail gas cooling and dust removal device for industrial smelting according to claim 2, characterized in that, The rotating assembly (5) includes a rotating gear ring (51), a limiting sleeve (52), a limiting ring (53), an avoidance opening (54) and a bracket (55). The rotating gear ring (51) is rotatably connected within the annular guide rail (11). The limiting sleeve (52), the limiting ring (53) and the bracket (55) are all fixedly connected to the rotating gear ring (51). The driving part (4) is in transmission connection with the rotating gear ring (51). The transmission ring (61) is rotatably connected within the limiting sleeve (52). An annular groove (34) is provided on the surface of the rotating pipe (32). The limiting ring (53) is rotatably connected to the annular groove (34). An avoidance opening (54) is provided on the surface of the limiting sleeve (52). The transmission shaft (622) is rotatably connected to the bracket (55). The pipe sleeve (625) is fixedly connected to the bracket (55).

4. An exhaust gas cooling and dust removal device for industrial smelting according to claim 1, characterized in that, The cross-section of the filter element (31) is fan-shaped, and the included angle of the filter element (31) is 30 degrees.

5. An exhaust gas cooling and dust removal device for industrial smelting according to claim 1, characterized in that, Smoke exhaust ports (13) and a waste liquid pool (14) are respectively arranged at the upper and lower ends of the cooling and dust removal tower (1). A waste discharge pipe (15) is fixedly connected to the bottom of the waste liquid pool (14).

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