Tail gas cooling and dust removing device for industrial smelting

Abstract

The invention relates to the technical field of tail gas treatment, and provides a tail gas cooling and dust removing device for industrial smelting, which comprises a cooling and dust removing tower, a dust removing and filtering assembly, a rotating assembly, a transmission mechanism, a fixed gear ring, a driving part, a base and a control display, the dust removing and filtering assembly comprises filtering pieces, a rotating pipe and a curved groove, and the included angle between the two filtering pieces is 90 degrees; the filter piece comprises a filter screen cover and a filling layer, the filling layer is located in the filter screen cover, and the curved groove and the fixed gear ring are both in transmission connection with the transmission mechanism; the purpose of controlling a dynamic filtering plane composed of a plurality of fan-shaped filtering pieces to turn over by 90 degrees is achieved by controlling a plurality of filtering pieces to rotate around the axis of the cooling and dust removing tower and the axis of a rotating pipe, and on one hand, adhered particulate matter can be automatically removed through centrifugal force and a purifying agent sprayed out of a high-pressure spraying valve; on the other hand, the tail gas cooling and dust removal efficiency is not affected in the particulate matter removal process, and the characteristics of stable dust removal efficiency and good self-cleaning effect are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of tail gas treatment, and in particular 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 gases discharged into the air during fuel combustion and production processes within the factory area of ​​an enterprise. These waste gases include: carbon dioxide, carbon disulfide, hydrogen sulfide, fluoride, nitrogen oxides, chlorine, hydrogen chloride, carbon monoxide, sulfuric acid (mist), lead and mercury, beryllium, smoke and industrial dust.

[0003] Patent No. CN117138459B discloses a device for cooling and dust removal of tail gas for steelmaking industry, including a dust removal frame, a waste gas cooling cylinder, a waste gas joint, a cold air joint, a counter-type centrifugal separation mechanism and a tubular clamping purification mechanism, wherein the waste gas cooling cylinder is symmetrically arranged on the inner wall at both ends of the dust removal frame, the waste gas joint is connected and arranged on the side wall of the waste gas cooling cylinder, the cold air joint penetrates the dust removal frame and is connected and arranged on both sides of the waste gas cooling cylinder, the counter-type centrifugal separation mechanism is arranged between the waste gas cooling cylinders, and the tubular clamping purification mechanism is arranged on the outside of the waste gas cooling cylinder. The present invention provides a device for cooling and dust removal of tail gas for steelmaking industry, which can adjust the filtering structure according to the waste gas flow rate, and can monitor the waste gas pressure so that the impact force strength between the waste gases is lower than the centrifugal force strength of the impurities, thereby ensuring that the impurities in the waste gas can be fully removed.

[0004] The above exhaust gas cooling and dust removal device has the following defects when in use: on the one hand, the method of cleaning impurities only by centrifugal force cannot effectively and thoroughly remove the adhered impurities; on the other hand, during the cleaning process, the exhaust gas flow resistance increases and the contact area between the exhaust gas and the filter structure decreases, thereby causing the exhaust gas cooling and dust removal efficiency to decrease. Summary of the invention

[0005] The object of the present invention is to provide an industrial smelting tail gas cooling and dust removal device, aiming to solve the problems existing in the use of existing industrial tail gas cooling and dust removal devices.

[0006] To achieve the above object, the present invention provides the following technical solution: an industrial smelting tail gas cooling and dust removal device, comprising a cooling and dust removal tower, a purifier discharge part, a tail gas intake pipe, a base and a control display, the cooling and dust removal tower and the control display are both fixedly connected to the base, the purifier discharge part is located in the cooling and dust removal tower, the tail gas intake pipe is fixedly connected to the cooling and dust removal tower, and also includes:

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

[0008] Regarding the dust removal filter assembly that is centrally symmetrical to the purifier discharge part, the dust removal filter assembly includes a filter element, a rotating tube and a curved groove, 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 angle between the two filter elements is 90 degrees, the filter element includes a filter screen cover and a filling layer, and the filling layer is located in the filter screen cover;

[0009] A rotating assembly rotatably connected in the annular guide rail, wherein the rotating tube is movably connected to the rotating assembly;

[0010] A transmission mechanism movably connected to the rotating assembly, wherein the curved groove and the fixed gear ring are both transmission-connected to the transmission mechanism;

[0011] A driving part is fixedly connected to the outer wall of the cooling and dust removal tower, and the rotating assembly is transmission-connected to the driving part.

[0012] As a further solution of the present invention, the transmission mechanism includes a transmission ring and an adjusting part, the surface of the transmission ring is provided with tooth grooves and tooth pins, the curved grooves are slidably connected to the tooth pins, the transmission ring is rotatably connected in the rotating assembly, one end of the adjusting part is transmission connected to the tooth groove, and the fixed tooth ring is transmission connected to the other end of the adjusting part.

[0013] As a further solution of the present invention, the adjusting part includes a first transmission gear, a transmission shaft, a second transmission gear, an electromagnet, a pipe sleeve, a return spring, a magnetic ring, a limit block and a key strip. The surface of the transmission shaft is provided with a key strip. The first transmission gear and the limit block are respectively fixedly connected to the two 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 slot slidably connected to the key strip. The electromagnet is inlaid in the surface of the pipe sleeve. The return spring is connected between the second transmission gear and the pipe sleeve. The tooth groove and the fixed gear ring are respectively connected to the first transmission gear and the second transmission gear.

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

[0015] As a further solution of the present invention, the rotating assembly includes a rotating gear ring, a limit sleeve, a limit ring, an avoidance opening and a bracket. The rotating gear ring is rotatably connected in the annular guide rail, and the limit sleeve, the limit ring and the bracket are all fixedly connected to the rotating gear ring. The driving part is transmission-connected to the rotating gear ring, and the transmission ring is rotatably connected in the limit sleeve. The surface of the rotating tube is provided with an annular groove, the limit ring is rotatably connected to the annular groove, the surface of the limit sleeve is provided with an avoidance opening, the transmission shaft is rotatably connected to the bracket, and the pipe 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, the cooling and dust removal tower is provided with a smoke exhaust port and a waste liquid pool at the upper and lower ends thereof, respectively, and a waste discharge pipe is fixedly connected to the bottom of the waste liquid pool.

[0018] The beneficial effect of the present invention is that the purpose of controlling the dynamic filter plane composed of several filter elements to flip 90 degrees is achieved by controlling several filter elements to rotate with the axis of the cooling dust removal tower and with the axis of the rotating tube. On the one hand, it can automatically remove adhered particulate matter by using centrifugal force and the purifier sprayed by the high-pressure spray valve. On the other hand, it can not affect the efficiency of exhaust gas cooling and dust removal in the process of removing particulate matter. It has the characteristics of stable dust removal efficiency, good self-cleaning effect and increased service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a first stereogram of the present invention.

[0020] Figure 2 It is an exploded view of the present invention.

[0021] Figure 3 It is a three-dimensional diagram of a dust removal and filtering assembly according to an embodiment of the present invention.

[0022] Figure 4 It is a planar cross-sectional view of a dust removal and filtering assembly according to an embodiment of the present invention.

[0023] Figure 5 It is a three-dimensional diagram of a rotating assembly according to an embodiment of the present invention.

[0024] Figure 6 It is an assembly diagram of the dust removal and filtering assembly and the transmission mechanism according to an embodiment of the present invention.

[0025] Figure 7 It is a partial cross-sectional view of the dust removal and filtering assembly, the rotating assembly and the transmission mechanism according to an embodiment of the present invention.

[0026] Figure 8 It is an assembly diagram of a purifier discharge part, a dust removal and filtering component, a rotating component and a transmission mechanism according to an embodiment of the present invention.

[0027] Fig. 9 It is a partial cross-sectional view of the present invention.

[0028] Fig.10 For invention Fig. 9 A partial enlarged view of point a in the middle.

[0029] Fig.11 It is a plan cross-sectional view of the present invention.

[0030] Figure numerals: 1-cooling dust removal tower, 11-annular guide rail, 12-fixed gear ring, 13-smoke exhaust port, 14-waste liquid pool, 15-waste exhaust pipe, 2-purifier discharge part, 21-discharge pipe, 22-high pressure spray valve, 23-seal, 3-dust removal filter assembly, 31-filter element, 311-filter cover, 312-filling layer, 32-rotating tube, 33-curved groove, 34-annular groove, 4-driving part, 5-rotating assembly, 51-rotating gear ring, 52 -limit sleeve, 53-limit ring, 54-avoidance, 55-bracket, 6-transmission mechanism, 61-transmission ring, 611-tooth groove, 612-tooth pin, 62-adjustment part, 621-first transmission gear, 622-transmission shaft, 623-second transmission gear, 624-electromagnet, 625-pipe sleeve, 626-reset spring, 627-magnetic ring, 628-limit block, 629-key strip, 7-exhaust intake pipe, 8-base, 9-control display. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention is further described in detail below 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 specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0033] See also Figures 1 to 11 In one embodiment of the present invention, an industrial smelting tail gas cooling and dust removal device includes a cooling and dust removal tower 1, a purifier discharge part 2, a tail gas intake pipe 7, a base 8 and a control display 9, wherein the cooling and dust removal tower 1 and the control display 9 are both fixedly connected to the base 8, the purifier discharge part 2 is located in the cooling and dust removal tower 1, and the tail gas intake pipe 7 is fixedly connected to the cooling and dust removal tower 1, and further includes:

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

[0035] Regarding the dust removal filter assembly 3 that is centrally symmetrical to the purifier discharge part 2, the dust removal filter assembly 3 includes a filter element 31, a rotating tube 32 and a curved groove 33. The two filter elements 31 are fixedly connected to the rotating tube 32. The inner wall of the rotating tube 32 is provided with a curved groove 33. The angle between the two filter elements 31 is 90 degrees. The filter element 31 includes a filter cover 311 and a filling layer 312. The filling layer 312 is located in the filter cover 311.

[0036] The rotating assembly 5 is rotatably connected to the annular guide rail 11, and the rotating tube 32 is movably connected to the rotating assembly 5;

[0037] A transmission mechanism 6 movably connected to the rotating assembly 5, wherein the curved groove 33 and the fixed gear ring 12 are both transmission-connected to the transmission mechanism 6;

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

[0039] See also Fig.11 Furthermore, the cooling and dust removal tower 1 is provided with a smoke exhaust port 13 and a waste liquid pool 14 at the upper and lower ends thereof, and a waste discharge pipe 15 is fixedly connected to the bottom of the waste liquid pool 14 .

[0040] In an embodiment of the present invention, the cross-section of the filter element 31 is fan-shaped, and the angle of the filter element 31 is 30 degrees. An angle sensor is provided on the surface of one of the rotating tubes 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 waste liquid after purification is discharged through the waste pipe 15.

[0041] See also Figures 6 to 8 In one embodiment of the present invention, the transmission mechanism 6 includes a transmission ring 61 and an adjusting portion 62, a tooth groove 611 and a tooth pin 612 are provided on the surface of the transmission ring 61, the curved groove 33 is slidably connected to the tooth pin 612, the transmission ring 61 is rotatably connected in the rotating component 5, one end of the adjusting portion 62 is transmission-connected to the tooth groove 611, and the fixed tooth ring 12 is transmission-connected to the other end of the adjusting portion 62.

[0042] See also 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 sleeve 625, a return spring 626, a magnetic ring 627, a limit block 628 and a key strip 629. The surface of the transmission shaft 622 is provided with a key strip 629. The first transmission gear 621 and the limit block 628 are respectively fixedly connected to the two ends of the transmission shaft 622. The surface of the second transmission gear 623 is inlaid with a magnetic ring 627. The surface of the second transmission gear 623 is provided with a key groove slidably connected to the key strip 629. The electromagnet 624 is inlaid on the surface of the sleeve 625. The return spring 626 is connected between the second transmission gear 623 and the sleeve 625. The tooth groove 611 and the fixed gear ring 12 are respectively connected to the first transmission gear 621 and the second transmission gear 623.

[0043] See also Figures 7 to 10Further, 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 in the annular guide rail 11, and 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 transmission-connected to the rotating gear ring 51, and the transmission ring 61 is rotationally connected in the limiting sleeve 52. The surface of the rotating tube 32 is provided with an annular groove 34, the limiting ring 53 is rotationally connected to the annular groove 34, and the surface of the limiting sleeve 52 is provided with an avoidance opening 54. The transmission shaft 622 is rotatably connected to the bracket 55, and the pipe sleeve 625 is fixedly connected to the bracket 55.

[0044] In the embodiment of the present invention, when the electromagnet 624 is energized, the electromagnet 624 is magnetically fitted with the magnetic ring 627, so the second transmission gear 623 is separated from the fixed gear ring 12. When the electromagnet 624 is de-energized, the magnetic ring 627 loses the magnetic attraction of the electromagnet 624, so the elastic force of the reset spring 626 drives the second transmission gear 623 to fit with the limit block 628. At this time, the second transmission gear 623 is transmission-connected to the fixed gear ring 12.

[0045] See also Figures 8 to 11 In one embodiment of the present invention, the purifier discharge part 2 includes a discharge pipe 21, a high-pressure spray valve 22 and a sealing member 23. The discharge pipe 21 is fixedly connected to the cooling and dust removal tower 1. Several high-pressure spray valves 22 are connected to the surface of the discharge pipe 21. The sealing member 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 sealing member 23.

[0046] In the embodiment of the present invention, the sealing member 23 is a rubber sleeve, which is fitted with the ends of the plurality of fan-shaped filter elements 31. The surfaces of the plurality of fan-shaped filter elements 31 are in contact with each other, thereby ensuring the relative sealing of the filter surface composed of the plurality of filter elements 31, so that all the flue gas can pass through the filter elements 31 for dust removal. Since the high-pressure spray valves 22 are distributed on the upper and lower sides of the plurality of filter elements 31, the mist purifier sprayed by the high-pressure spray valves 22 can cool the exhaust gas from the upper and lower sides of the plurality of filter elements 31. A temperature sensor is provided at the exhaust to monitor the temperature parameters of the treated gas.

[0047] Working principle: Industrial tail gas enters the cooling and dust removal tower 1 through the tail gas intake pipe 7, and the discharge pipe 21 fills the purifier in the form of mist on the upper and lower sides of the horizontally placed filter element 31 through the high-pressure spray valve 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 several horizontally placed filter elements 31, the filter cover 311 and the filling layer 312 are used to filter particulate matter and odor in the tail gas, thereby playing a role in cooling and dust removal;

[0048] After a certain period of time, the control display 9 is used to control the driving unit 4 to start. The driving unit 4 controls the rotating assembly 5, the dust removal filter assembly 3 and the transmission mechanism 6 to rotate around the axis of the cooling dust removal tower 1 by rotating the gear ring 51. The transmission mechanism 6 that rotates together uses the second transmission gear 623 and the fixed gear ring 12 to drive the first transmission gear 621 to rotate around the transmission shaft 622. The rotating first transmission gear 621 drives the transmission ring 61 to rotate in the limiting sleeve 52 through the tooth groove 611. The rotating transmission ring 61 drives the rotating tube 32 to rotate 90 degrees clockwise in the limiting ring 53 through the tooth pin 612 and the curved groove 33. At this time A filter element 31 for unfiltered exhaust gas is in a horizontal state for filtering exhaust gas, and another filter element 31 with particles attached is in a vertical downward state. The control display 9 is used to control the electromagnet 624 to be energized. Since the electromagnet 624 after being energized is magnetically attached to the magnetic ring 627, the second transmission gear 623 is separated from the fixed gear ring 12. At this time, the filter element 31 will not continue to rotate. Since the particles on the surface of the vertically downward filter element 31 are located on the side of the filter element 31 close to the inner wall of the cooling dust removal tower 1, the centrifugal force generated by the dust removal filter assembly 3 that continues to rotate with the axis of the cooling dust removal tower 1 can separate the particles 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 drive unit 4 to start, which is used to control the rotating component 5, the dust removal filter component 3 and the transmission mechanism 6 to rotate in the opposite direction around the axis of the cooling and dust removal tower 1. At this time, the filter element 31 rotates 90 degrees in the opposite direction to reset, and the particulate matter on the surface of the other vertically upward filter element 31 is located on the side of the filter element 31 facing the high-pressure spray valve 22. When several vertically upward filter elements 31 rotate, the purifier sprayed by the high-pressure spray valve 22 can clean the particulate matter. The dynamic filtering plane composed of several fan-shaped filter elements 31 can be flipped 90 degrees. On the one hand, it can use centrifugal force and the purifier sprayed by the high-pressure spray valve 22 to automatically remove the adhered particulate matter. On the other hand, it can not affect the efficiency of exhaust gas cooling and dust removal in the process of removing particulate matter. 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 pipe 15.

[0050] In summary, the present application utilizes the structural design of the mutual cooperation among the dust removal filter assembly 3, the rotating assembly 5, the transmission mechanism 6, the fixed gear ring 12 and the driving part 4, and achieves the purpose of controlling the dynamic filtering plane composed of several filter elements 31 to flip 90 degrees by controlling the rotation of several filter elements 31 with the axis of the cooling dust removal tower 1 and the axis of the rotating tube 32. On the one hand, it can automatically remove adhered particulate matter by utilizing centrifugal force and the purifier sprayed by the high-pressure spray valve 22. On the other hand, it can not affect the efficiency of exhaust gas cooling and dust removal in the process of removing particulate matter, and has the characteristics of stable dust removal efficiency, good self-cleaning effect and improved 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 provided 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 scope of the main purpose of the invention.

[0052] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An industrial smelting tail gas cooling and dust removal device, comprising a cooling and dust removal tower (1), a purifying agent discharge part (2), a tail gas intake pipe (7), a base (8) and a control display (9), wherein 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 in the cooling and dust removal tower (1), and the tail gas intake pipe (7) is fixedly connected to the cooling and dust removal tower (1), characterized in that: Also 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 filter assembly (3) symmetrically arranged about the purifier discharge portion (2), the dust removal filter assembly (3) comprising a filter element (31), a rotating tube (32) and a curved groove (33), the two filter elements (31) being fixedly connected to the rotating tube (32), the inner wall of the rotating tube (32) being provided with a curved groove (33), the angle between the two filter elements (31) being 90 degrees, the filter element (31) comprising a filter screen cover (311) and a filling layer (312), the filling layer (312) being located inside the filter screen cover (311); A rotating assembly (5) rotatably connected to the annular guide rail (11), wherein the rotating tube (32) is movably connected to the rotating assembly (5); A transmission mechanism (6) movably connected to the rotating assembly (5), wherein the curved groove (33) and the fixed gear ring (12) are both in transmission connection with the transmission mechanism (6); A driving part (4) is fixedly connected to the outer wall of the cooling and dust removal tower (1), and the rotating assembly (5) is drivingly connected to the driving part (4).

2. The industrial smelting tail gas cooling and dust removal device according to claim 1 is characterized in that: The transmission mechanism (6) comprises a transmission ring (61) and an adjusting portion (62); a tooth groove (611) and a tooth pin (612) are provided on the surface of the transmission ring (61); the curved groove (33) is slidably connected to the tooth pin (612); the transmission ring (61) is rotatably connected in the rotating assembly (5); one end of the adjusting portion (62) is transmission-connected to the tooth groove (611); and the fixed tooth ring (12) is transmission-connected to the other end of the adjusting portion (62).

3. The industrial smelting tail gas cooling and dust removal device according to claim 2 is characterized in that: The adjusting portion (62) comprises a first transmission gear (621), a transmission shaft (622), a second transmission gear (623), an electromagnet (624), a sleeve (625), a return spring (626), a magnetic ring (627), a limit block (628) and a key bar (629). The key bar (629) is provided 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 surface of the transmission gear (623) is inlaid with a magnetic ring (627); the surface of the second transmission gear (623) is provided with a key groove slidably connected to the key bar (629); 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 groove (611) and the fixed tooth ring (12) are respectively connected to the first transmission gear (621) and the second transmission gear (623) in transmission connection.

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

5. The industrial smelting tail gas cooling and dust removal device according to claim 3 is characterized in that: The rotating assembly (5) comprises 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 in 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 transmission-connected to the rotating gear ring (51); the transmission ring (61) is rotationally connected in the limiting sleeve (52); an annular groove (34) is provided on the surface of the rotating tube (32); the limiting ring (53) is rotationally connected to the annular groove (34); the avoiding opening (54) is provided on the surface of the limiting sleeve (52); the transmission shaft (622) is rotatably connected to the bracket (55); and the tube sleeve (625) is fixedly connected to the bracket (55).

6. The industrial smelting tail gas cooling and dust removal device according to claim 1 is 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.

7. The industrial smelting tail gas cooling and dust removal device according to claim 1 is characterized in that: The cooling and dust removal tower (1) is provided with a smoke exhaust port (13) and a waste liquid pool (14) at the upper and lower ends respectively, and a waste discharge pipe (15) is fixedly connected to the bottom of the waste liquid pool (14).

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