A multi-stage tubular dust removal device for converter flue gas

Abstract

The present invention belongs to the technical field of dust removal devices, and specifically is a multi-stage tubular dust removal device for converter flue gas, comprising a base, a second treatment box is fixedly connected to the middle part of the upper end surface of the base, a support ring is fixedly connected to the upper end surface of the base, the support ring is fixedly connected to the first treatment box, the left end of the rotating plate is fixedly connected to an annular tube, the annular tube is connected to a plurality of hoses 2, the hoses 2 are connected to a nozzle, the nozzle is rotatably arranged on the annular tube, the first treatment box is connected to the second treatment box through a connecting pipe, and a scraping and falling iron collection mechanism for collecting iron in the converter flue gas is arranged inside the second treatment box. The present invention realizes the separation and collection of iron in impurities, thereby realizing resource recovery; while utilizing spraying for dust removal, the spraying range is changed, so that the water mist can better contact with the impurities in the flue gas, thereby improving the adsorption effect.

Description

Technical Field

[0001] The invention belongs to the technical field of dust removal devices, in particular to a converter flue gas multi-stage tubular dust removal device. Background Art

[0002] Converter flue gas refers to the thick brown smoke produced during the converter blowing process, which is a mixture of furnace gas and smoke.

[0003] In order to make the converter flue gas meet the discharge standards, it is necessary to use a converter flue gas multi-section tubular dust removal device to remove the converter flue gas. Multi-section tubular means that it is composed of multiple pipe sections, and each pipe section is responsible for different effects.

[0004] The utility model patent with the announcement number CN209619376U discloses a converter flue gas dust removal device, including a converter, a dust removal box and a water inlet pipe, the dust removal box has a cavity inside, and a partition is fixedly connected to the middle position of the dust removal box, the left and right sides of the dust removal box are fixedly connected to the heat insulation board, the top of the partition is provided with a first processing box, the top and bottom of the first processing box are fixedly connected to the four corners with a first fixed block, and the top of the first fixed block located at the four corners of the top of the first processing box is fixedly connected to the inner wall of the dust removal box. The converter flue gas dust removal device solves the problem that the traditional converter dust removal device has a single structure and low safety, and has no good protection measures in the event of an accident, which is easy to cause harm to nearby workers.

[0005] However, the above technical solution still has the following deficiencies in practical application:

[0006] After the above technical solution completes spraying of the converter flue gas, impurities and water are discharged together through the sewage pipe. However, since the impurities in the converter flue gas may contain iron, these irons have a high recycling value. When these irons are discharged together with water, it is a waste of resources.

[0007] To this end, the present invention provides a converter flue gas multi-stage tubular dust removal device. Summary of the invention

[0008] In order to make up for the deficiencies of the prior art and solve at least one technical problem raised in the background technology, the present invention proposes a converter flue gas multi-stage tubular dust removal device.

[0009] The technical solution adopted by the present invention to solve its technical problems is: a multi-stage tubular dust removal device for converter flue gas, comprising a base, a second treatment box is fixedly connected to the middle of the upper end surface of the base, a support ring is fixedly connected to the upper end surface of the base, the support ring is fixedly connected to the first treatment box, the upper left end of the first treatment box is connected to a smoke inlet pipe, a rotating plate is rotatably arranged at the middle of the upper end of the first treatment box, an annular tube is fixedly connected to the left end of the rotating plate, the annular tube is connected to a plurality of hoses II, the hoses II are connected to a nozzle, the nozzle is rotatably arranged on the annular tube, the first treatment box is connected to the second treatment box through a connecting pipe, and a scraping and falling iron collection mechanism for collecting iron in the converter flue gas is arranged inside the second treatment box;

[0010] The scraping and falling iron collection mechanism includes a filter screen fixedly connected to the lower side of the inner cavity wall of the second processing box, a support plate is fixedly connected to the middle part of both sides of the upper end surface of the second processing box, a rotating arm is rotatably arranged in the middle of the support plate, electric push rods are fixedly connected to both sides of the lower end surface of the rotating arm, a slide plate is fixedly connected to the piston end of the electric push rod, threaded blocks are slidably connected to both sides of the slide plate, a scooping box is rotatably arranged on the threaded block, and an electromagnet is arranged in the middle of the front end surface of the slide plate.

[0011] Preferably, a water tank is fixedly connected to the left side of the upper end surface of the first treatment box, the right end of the water tank is connected and fixedly connected to a water pump, the water outlet of the water pump is connected to a hose 1, and the hose 1 passes through the first treatment box and is connected to the right end of the annular tube.

[0012] Preferably, a motor 1 is fixedly connected to the middle of the upper end surface of the first processing box, and the output end of the motor 1 is fixedly connected to the right end of the rotating plate. A plurality of motors 6 are fixedly connected to the lower side of the annular tube, and the output end of the motor 6 is fixedly connected to the nozzle.

[0013] Preferably, the upper right end of the first processing box is connected to an exhaust pipe, the upper end of the exhaust pipe is connected to a filter cartridge, the filter cartridge is fixedly connected to the first processing box, an air outlet is provided at the upper end of the filter cartridge, and an activated carbon adsorption net is fixedly connected to the middle of the inner cavity wall of the filter cartridge.

[0014] Preferably, an electric heating wire is provided on the upper side of the inner wall of the second processing box.

[0015] Preferably, a second motor is fixedly connected to the middle portion of the upper end surface of the support plate, and an output end of the second motor is fixedly connected to the rotating arm.

[0016] Preferably, the front end of the threaded block is fixedly connected to motor four, the output end of motor four is fixedly connected to the upper end of the scooping box, the threaded block is threadedly connected to a bidirectional threaded rod, both ends of the bidirectional threaded rod are rotatably set at both ends of the slide plate, the left end face of the slide plate is fixedly connected to motor three, and the output end of motor three is fixedly connected to the left end of the bidirectional threaded rod.

[0017] Preferably, a placement cavity is fixedly connected to the front end surface of the slide plate, and a collection box is placed inside the placement cavity.

[0018] Preferably, a crushing tooth plate 1 is fixedly connected to the front side of the upper end of the filter, a crushing tooth plate 2 is rotatably arranged in the middle of the filter, a motor 5 is fixedly connected to the middle of the lower end of the filter, and the output end of the motor 5 is fixedly connected to the crushing tooth plate 2.

[0019] Preferably, a drain pipe is provided at the lower end of the right side of the second processing box, and a solenoid valve is provided at the upper end of the drain pipe.

[0020] The beneficial effects of the present invention are as follows:

[0021] 1. The multi-stage tubular dust removal device for converter flue gas described in the present invention can separate and collect iron from impurities by means of a scraping and falling iron collection mechanism, thereby realizing resource recovery. Moreover, before separation, the agglomerated impurities can be crushed by means of crushing tooth plates one and two, thereby avoiding the situation where the iron is wrapped or separated by other non-magnetic materials, thereby reducing the adsorption effect. Moreover, when the iron is adsorbed by an electromagnet, the impurities can be clamped together and made to fall naturally, thereby putting the impurities in a state of motion, thereby avoiding the situation where the accumulation of impurities makes it inconvenient for the electromagnet to adsorb to the bottom iron, thereby further improving the adsorption effect. In this way, the impurities remaining on the upper surface of the crushing tooth plates one and two can be clamped, thereby further increasing the amount of iron collected and reducing the dead angles for adsorption of iron.

[0022] 2. The multi-stage tubular dust removal device for converter flue gas described in the present invention connects the smoke inlet pipe with the converter flue gas outlet. When the flue gas enters the first treatment box, the water pump is started to pump out the water in the water tank, which reaches the annular pipe through hose one and is sprayed out from the nozzle through hose two again, thereby spraying the flue gas so that impurities in the flue gas are wrapped by water, thereby achieving dust removal of the flue gas. The air enters the filter cartridge through the exhaust pipe, is filtered by the activated carbon adsorption net and is discharged from the air outlet. At the same time, the rotating plate can be driven to rotate back and forth by starting motor one to adjust the horizontal position of the nozzle, and then motor six can be started to drive the nozzle to rotate to adjust the inclination angle of the nozzle, thereby changing the spray range while utilizing spray dust removal, so that the water mist can better contact with the impurities in the flue gas, thereby improving the adsorption effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below in conjunction with the accompanying drawings.

[0024] Figure 1 It is a schematic diagram of the complete three-dimensional structure of the present invention;

[0025] Figure 2 It is a schematic diagram of a partial cross-section three-dimensional structure of the present invention;

[0026] Figure 3 It is a schematic diagram of the local three-dimensional structure of the filter;

[0027] Figure 4 It is a schematic diagram of the local three-dimensional structure of the electromagnet;

[0028] Figure 5 It is a schematic diagram of the local three-dimensional structure of the slide plate;

[0029] Figure 6 It is a schematic diagram of the three-dimensional structure of five parts of the motor;

[0030] Figure 7 It is a schematic diagram of the local three-dimensional structure of the annular pipe;

[0031] Figure 8 It is a schematic diagram of the local three-dimensional structure of the water tank.

[0032] In the figure: 1. base; 2. support ring; 3. first treatment box; 4. water tank; 5. smoke inlet pipe; 6. connecting pipe; 7. second treatment box; 8. drain pipe; 9. solenoid valve; 10. hose 1; 11. filter cartridge; 12. water pump; 13. motor 1; 14. motor 2; 15. electric heating wire; 16. support plate; 17. rotating arm; 18. electric push rod; 19. filter screen; 20. crushing tooth plate 1; 21. slide plate; 22. crushing tooth plate 2; 23. motor 3; 24. threaded block; 25. motor 4; 26. scooping box; 27. electromagnet; 28. placement chamber; 29. ​​collection box; 30. two-way threaded rod; 31. motor 5; 32. activated carbon adsorption net; 33. air outlet; 34. exhaust pipe; 35. ring pipe; 36. rotating plate; 37. hose 2; 38. nozzle; 39. motor 6. DETAILED DESCRIPTION

[0033] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. 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.

[0034] Please refer to Figure 1-Figure 8The present invention provides a technical solution: a multi-stage tubular dust removal device for converter flue gas, comprising a base 1, a second processing box 7 is fixedly connected to the middle of the upper end surface of the base 1, a support ring 2 is fixedly connected to the upper end surface of the base 1, a first processing box 3 is fixedly connected to the support ring 2, the upper left end of the first processing box 3 is connected to a smoke inlet pipe 5, a rotating plate 36 is rotatably provided at the middle of the upper end of the first processing box 3, an annular tube 35 is fixedly connected to the left end of the rotating plate 36, the annular tube 35 is connected to a plurality of hoses 37, the hoses 37 are connected to a nozzle 38, the nozzle 38 is rotatably provided on the annular tube 35, the first processing box 3 is connected to the second processing box 7 through a connecting pipe 6, and a scraping and falling iron collection mechanism for collecting iron in the converter flue gas is provided inside the second processing box 7;

[0035] The scraping and falling iron collection mechanism includes a filter screen 19 fixedly connected to the lower side of the inner cavity wall of the second processing box 7, a support plate 16 is fixedly connected to the middle part of both sides of the upper end surface of the second processing box 7, a rotating arm 17 is rotatably provided in the middle part of the support plate 16, and an electric push rod 18 is fixedly connected to both sides of the lower end surface of the rotating arm 17, and a slide plate 21 is fixedly connected to the piston end of the electric push rod 18, and a threaded block 24 is slidably connected to both sides of the slide plate 21, and a scooping box 26 is rotatably provided on the threaded block 24, and an electromagnet 27 is provided in the middle part of the front end surface of the slide plate 21.

[0036] In this embodiment, Figure 7 and Figure 8 As shown, the left side of the upper end surface of the first treatment box 3 is fixedly connected to a water tank 4, the right end of the water tank 4 is connected and fixedly connected to a water pump 12, the water outlet end of the water pump 12 is connected to a hose 10, the hose 10 passes through the first treatment box 3 and is connected to the right end of the annular pipe 35;

[0037] A motor 13 is fixedly connected to the middle of the upper end surface of the first processing box 3, and the output end of the motor 13 is fixedly connected to the right end of the rotating plate 36. A plurality of motors 6 39 are fixedly connected to the lower side of the annular tube 35, and the output end of the motor 6 39 is fixedly connected to the nozzle 38;

[0038] The upper right end of the first treatment box 3 is connected to an exhaust pipe 34, the upper end of the exhaust pipe 34 is connected to a filter cartridge 11, the filter cartridge 11 is fixedly connected to the first treatment box 3, an air outlet 33 is provided at the upper end of the filter cartridge 11, and an activated carbon adsorption net 32 ​​is fixedly connected to the middle of the inner cavity wall of the filter cartridge 11.

[0039] Specifically, the smoke inlet pipe 5 is connected to the converter smoke outlet. When the smoke enters the first treatment box 3, the water pump 12 is started. The water pump 12 draws out the water in the water tank 4, and the water reaches the annular pipe 35 through the hose 10, and is sprayed from the nozzle 38 through the hose 2 37 again, so that the smoke is sprayed, so that the impurities in the smoke are wrapped by water, and the smoke is dusted. The air enters the filter cartridge 11 through the exhaust pipe 34, and is discharged from the air outlet 33 after being filtered by the activated carbon adsorption net 32. At the same time, the rotating plate 36 can be driven to reciprocate by starting the motor 13 to adjust the horizontal position of the nozzle 38, and then the motor 6 39 is started to drive the nozzle 38 to rotate, and the inclination angle of the nozzle 38 is adjusted, so that the spraying range is changed while the dust is removed by spraying, so that the water mist can better contact with the impurities in the smoke, thereby improving the adsorption effect.

[0040] In this embodiment, Figure 2-Figure 6 As shown, an electric heating wire 15 is provided on the upper side of the inner wall of the second processing box 7;

[0041] The middle part of the upper end surface of the support plate 16 is fixedly connected with the motor 2 14, and the output end of the motor 2 14 is fixedly connected with the rotating arm 17;

[0042] The front end of the threaded block 24 is fixedly connected to a motor 4 25, the output end of the motor 4 25 is fixedly connected to the upper end of the scooping box 26, the threaded block 24 is threadedly connected to a bidirectional threaded rod 30, both ends of the bidirectional threaded rod 30 are rotatably arranged at both ends of the slide plate 21, the left end surface of the slide plate 21 is fixedly connected to a motor 3 23, and the output end of the motor 3 23 is fixedly connected to the left end of the bidirectional threaded rod 30;

[0043] A placement cavity 28 is fixedly connected to the front end surface of the slide plate 21, and a collection box 29 is placed inside the placement cavity 28;

[0044] A crushing tooth plate 1 20 is fixedly connected to the front side of the upper end of the filter 19, a crushing tooth plate 22 is rotatably arranged in the middle of the filter 19, a motor 5 31 is fixedly connected to the middle of the lower end of the filter 19, and the output end of the motor 5 31 is fixedly connected to the crushing tooth plate 22;

[0045] A drain pipe 8 is provided at the lower right end of the second treatment box 7, and a solenoid valve 9 is provided at the upper end of the drain pipe 8. Specifically, converter flue gas refers to the thick brown smoke generated during the converter blowing process, which is a mixture of furnace gas and smoke. In order to make the converter flue gas meet the discharge standard, the converter flue gas needs to be dusted. When the existing converter flue gas dust removal device is used, the flue gas is usually sprayed to adsorb impurities with water, and then the impurities are discharged together with the water to achieve the dust removal effect. However, since the impurities in the converter flue gas may contain iron, these irons have a high recovery value, and when these irons are discharged together with water, it is a waste of resources;

[0046] Therefore, when this embodiment is used, after the spraying work of the converter flue gas is completed, the impurities and water enter the second treatment box 7 through the connecting pipe 6, and the impurities are intercepted by the filter screen 19 and stay on the upper end of the filter screen 19. The solenoid valve 9 is opened to discharge the water;

[0047] At this time, the electric heating wire 15 is energized to heat it up, and the impurities on the upper end of the filter screen 19 are dried to prevent the impurities from being too wet and affecting the adsorption effect of the electromagnet 27. Some impurities may be in a state of agglomeration, which may cause the iron to be wrapped or separated by other non-magnetic substances, thereby reducing the adsorption efficiency. Therefore, the motor 5 31 can be started to drive the crushing tooth plate 22 to rotate, so that the crushing tooth plate 22 rotates clockwise first and then counterclockwise, so that the crushing tooth plate 22 contacts the two sides of the crushing tooth plate 1 20 respectively, and the agglomerated impurities can be crushed under the effect that the teeth of the crushing tooth plate 22 and the crushing tooth plate 1 20 contact each other.

[0048] Then, the electric push rod 18 is started to drive the slide plate 21 to descend, so that the lower end surface of the scooping box 26 contacts the upper end of the filter screen 19, and the distance between the two scooping boxes 26 is the largest in the initial state. Then, the motor 3 23 is started to drive the bidirectional threaded rod 30 to rotate, so that the threaded blocks 24 on both sides are close to each other, so that the two scooping boxes 26 are fitted together, and the impurities are clamped and placed in the scooping box 26. Then, the electric push rod 18 is used again to raise the scooping box 26, and the electromagnet 27 is energized. At this time, the electromagnet 27 can adsorb the iron in the impurities, and then Then, the motors 25 on both sides are started to drive the two scooping boxes 26 to rotate in different directions at the same time, and the two scooping boxes 26 are separated. At this time, the impurities inside the scooping boxes 26 will fall down. When the impurities fall down, the iron will be adsorbed on the electromagnet 27, so that the iron can be collected separately. Thus, the impurities are allowed to fall naturally and adsorbed, which can avoid the situation that when the impurities accumulate, the adsorption effect of the bottom iron is poor. Then, the motor 2 14 can be used to rotate the chute plate 21, and the orientation of the two scooping boxes 26 and the electromagnet 27 can be adjusted to achieve the purpose of collecting the iron separately. Impurities in different directions are shoveled up, and since impurities will adhere to the upper surface of the crushing tooth plate 22 and the crushing tooth plate 1 20 when they are in use, the impurities on the upper surface can be shoveled up by adjusting the position of the shoveling box 26, and then the iron collection work can be carried out; when the electromagnet 27 completes one adsorption, the power is stopped, and the iron attached to the surface of the electromagnet 27 can be dropped into the collection box 29, and then the collection box 29 is taken out from the placement cavity 28, so that the iron can be collected; thus, the scraping and falling iron collection is carried out. The mechanism can separate the iron in the impurities and collect them, thus realizing resource recovery. Moreover, before the separation work, the crushing tooth plate 1 20 and the crushing tooth plate 2 22 can be used to crush the agglomerated impurities, so as to avoid the situation that the iron is wrapped or separated by other non-magnetic materials, thereby reducing the adsorption effect. Moreover, when the electromagnet 27 is used to adsorb the iron, the impurities can be concentratedly clamped and made to fall naturally, so that the impurities are in a state of motion, thereby avoiding the situation that the accumulation of impurities makes it inconvenient for the electromagnet 27 to adsorb to the bottom iron, thereby further improving the adsorption effect.

[0049] Working principle: connect the smoke inlet pipe 5 with the smoke outlet of the converter. When the smoke enters the first treatment box 3, start the water pump 12. The water pump 12 pumps the water out of the water tank 4, and the water reaches the annular pipe 35 through the hose 10, and is sprayed from the nozzle 38 through the hose 2 37 again, so that the smoke is sprayed, so that the impurities in the smoke are wrapped by water, and the dust removal of the smoke is achieved. The air enters the filter cartridge 11 through the exhaust pipe 34, and is discharged from the air outlet 33 after being filtered by the activated carbon adsorption net 32. At the same time, the rotating plate 36 can be driven to rotate back and forth by starting the motor 13 to adjust the horizontal position of the nozzle 38, and then the motor 6 39 can be started to drive the nozzle 38 to rotate, and the inclination angle of the nozzle 38 can be adjusted, so that the spraying range can be changed while the dust is removed by spraying, so that the water mist can better contact with the impurities in the smoke, thereby improving the adsorption effect. After the spraying work of the flue gas is completed, the impurities and water enter the second processing box 7 through the connecting pipe 6, and the impurities are intercepted by the filter screen 19 and stay at the upper end of the filter screen 19. The solenoid valve 9 is opened to discharge the water flow; at this time, the electric heating wire 15 is energized to heat it up, and the impurities at the upper end of the filter screen 19 are dried to avoid the impurities being too wet and affecting the adsorption effect of the electromagnet 27. Some impurities may be in a lumped state, and the lumped state may cause the iron to be wrapped or separated by other non-magnetic substances, thereby reducing the adsorption efficiency. Therefore, the crushing tooth plate 22 can be driven to rotate by starting the motor 5 31, so that the crushing tooth plate 22 rotates clockwise first and then counterclockwise, so that the crushing tooth plate 22 is respectively in contact with the two sides of the crushing tooth plate 1 20. Under the effect of the contact between the teeth of the crushing tooth plate 22 and the crushing tooth plate 1 20, the agglomerated impurities can be crushed;Then, the electric push rod 18 is started to drive the slide plate 21 to descend, so that the lower end surface of the scooping box 26 contacts the upper end of the filter screen 19, and the distance between the two scooping boxes 26 is the largest in the initial state. Then, the motor 3 23 is started to drive the bidirectional threaded rod 30 to rotate, so that the threaded blocks 24 on both sides are close to each other, so that the two scooping boxes 26 are fitted together, and the impurities are clamped and placed in the scooping box 26. Then, the electric push rod 18 is used again to raise the scooping box 26, and the electromagnet 27 is energized. At this time, the electromagnet 27 can adsorb the iron in the impurities, and then Then, the motors 25 on both sides are started to drive the two scooping boxes 26 to rotate in different directions at the same time, and the two scooping boxes 26 are separated. At this time, the impurities inside the scooping boxes 26 will fall down. When the impurities fall down, the iron will be adsorbed on the electromagnet 27, so that the iron can be collected separately. Thus, the impurities are allowed to fall naturally and adsorbed, which can avoid the situation that when the impurities accumulate, the adsorption effect of the bottom iron is poor. Then, the motor 2 14 can be used to rotate the chute plate 21, and the orientation of the two scooping boxes 26 and the electromagnet 27 can be adjusted to achieve the purpose of collecting the iron separately. Impurities in different directions are shoveled up, and since impurities will adhere to the upper surface of the crushing tooth plate 22 and the crushing tooth plate 1 20 when they are in use, the impurities on the upper surface can be shoveled up by adjusting the position of the shoveling box 26, and then the iron collection work can be carried out; when the electromagnet 27 completes one adsorption, the power is stopped, and the iron attached to the surface of the electromagnet 27 can be dropped into the collection box 29, and then the collection box 29 is taken out from the placement cavity 28, so that the iron can be collected; thus, the scraping and falling iron collection is carried out. The mechanism can separate and collect the iron in the impurities, realizing resource recovery. Moreover, before separation, the crushing tooth plate 1 20 and the crushing tooth plate 2 22 can be used to crush the agglomerated impurities to avoid the situation where the iron is wrapped or separated by other non-magnetic materials, thereby reducing the adsorption effect. Moreover, when the electromagnet 27 is used to adsorb the iron, the impurities can be concentrated and clamped and made to fall naturally, so that the impurities are in a moving state, thereby avoiding the situation where the electromagnet 27 is inconvenient to adsorb the bottom iron due to the accumulation of impurities, and further improving the adsorption effect. ;

[0050] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A converter flue gas multi-stage tubular dust removal device, comprising a base (1), characterized in that: A second treatment box (7) is fixedly connected to the middle of the upper end surface of the base (1); a support ring (2) is fixedly connected to the upper end surface of the base (1); the support ring (2) is fixedly connected to the first treatment box (3); the upper left end of the first treatment box (3) is connected to a smoke inlet pipe (5); a rotating plate (36) is rotatably provided at the middle of the upper end of the first treatment box (3); an annular tube (35) is fixedly connected to the left end of the rotating plate (36); the annular tube (35) is connected to a plurality of hoses (37); the hoses (37) are connected to a nozzle (38); the nozzle (38) is rotatably provided on the annular tube (35); the first treatment box (3) is connected to the second treatment box (7) via a connecting pipe (6); and a scraping and falling iron collection mechanism for collecting iron in converter flue gas is provided inside the second treatment box (7); The scraping and falling iron collection mechanism comprises a filter screen (19) fixedly connected to the lower side of the inner cavity wall of the second processing box (7); the middle parts of both sides of the upper end surface of the second processing box (7) are fixedly connected to support plates (16); the middle part of the support plate (16) is rotatably provided with a rotating arm (17); both sides of the lower end surface of the rotating arm (17) are fixedly connected to electric push rods (18); the piston end of the electric push rod (18) is fixedly connected to a slide plate (21); both sides of the slide plate (21) are slide-type. A threaded block (24) is rotatably connected to the threaded block (24), a scooping box (26) is rotatably provided on the threaded block (24), an electromagnet (27) is provided in the middle of the front end surface of the slide plate (21), a crushing tooth plate 1 (20) is fixedly connected to the front side of the upper end of the filter screen (19), a crushing tooth plate 2 (22) is rotatably provided in the middle of the filter screen (19), a motor 5 (31) is fixedly connected to the middle of the lower end of the filter screen (19), and the output end of the motor 5 (31) is fixedly connected to the crushing tooth plate 2 (22).

2. The converter flue gas multi-stage tubular dust removal device according to claim 1, characterized in that: The left side of the upper end surface of the first treatment box (3) is fixedly connected to a water tank (4), the right end of the water tank (4) is connected to and fixedly connected to a water pump (12), the water outlet end of the water pump (12) is connected to a hose 1 (10), and the hose 1 (10) passes through the first treatment box (3) and is connected to the right end of the annular pipe (35).

3. The converter flue gas multi-stage tubular dust removal device according to claim 1, characterized in that: A motor one (13) is fixedly connected to the middle of the upper end surface of the first processing box (3), and the output end of the motor one (13) is fixedly connected to the right end of the rotating plate (36). A plurality of motor six (39) are fixedly connected to the lower side of the annular tube (35), and the output end of the motor six (39) is fixedly connected to the nozzle (38).

4. The converter flue gas multi-stage tubular dust removal device according to claim 1, characterized in that: The upper right end of the first treatment box (3) is connected to an exhaust pipe (34), the upper end of the exhaust pipe (34) is connected to a filter cartridge (11), the filter cartridge (11) is fixedly connected to the first treatment box (3), an air outlet (33) is provided at the upper end of the filter cartridge (11), and an activated carbon adsorption net (32) is fixedly connected to the middle of the inner cavity wall of the filter cartridge (11).

5. The converter flue gas multi-stage tubular dust removal device according to claim 1, characterized in that: An electric heating wire (15) is provided on the upper side of the inner wall of the second processing box (7).

6. The converter flue gas multi-stage tubular dust removal device according to claim 1, characterized in that: A second motor (14) is fixedly connected to the middle portion of the upper end surface of the support plate (16), and an output end of the second motor (14) is fixedly connected to a rotating arm (17).

7. The converter flue gas multi-stage tubular dust removal device according to claim 1, characterized in that: The front end of the threaded block (24) is fixedly connected to a motor four (25), the output end of the motor four (25) is fixedly connected to the upper end of the scooping box (26), the threaded block (24) is threadedly connected to a bidirectional threaded rod (30), both ends of the bidirectional threaded rod (30) are rotatably arranged at both ends of the slide plate (21), the left end surface of the slide plate (21) is fixedly connected to a motor three (23), and the output end of the motor three (23) is fixedly connected to the left end of the bidirectional threaded rod (30).

8. The converter flue gas multi-stage tubular dust removal device according to claim 1, characterized in that: A placement cavity (28) is fixedly connected to the front end surface of the slide plate (21), and a collection box (29) is placed inside the placement cavity (28).

9. The converter flue gas multi-stage tubular dust removal device according to claim 1, characterized in that: A drainage pipe (8) is provided at the lower right end of the second processing box (7), and a solenoid valve (9) is provided at the upper end of the drainage pipe (8).

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