Smoke dust collecting device for swinging flow nozzle of blast furnace

Abstract

The invention relates to the technical field of blast furnace swing flow nozzle smoke dust treatment, in particular to a blast furnace swing flow nozzle smoke dust collecting device which comprises a frame body, the top plate is fixedly connected to the top of the frame body; the four observation holes are formed in the top plate; the bottom plate is fixedly connected to the bottom of the frame body; the flow nozzle body is arranged in the frame body; through cooperation of the flow nozzle body, the fireproof buffer layer, the steel shell and the reinforcement cage, a layer of fireproof bricks is laid in the steel shell of the swing flow nozzle body, the brick joints of the fireproof bricks are filled with fireproof cotton, the brick joints are controlled within 5 mm, the fireproof bricks and the fireproof cotton are used for buffering expansion stress and water analysis generated in the baking process of swing castable, and therefore the flow nozzle is formed. Expansion stress is further released, and cracks of the thick refractory materials on the two sides during swinging are reduced; the steel reinforcement cage is additionally arranged at the bottom of the steel shell, 10 mm steel reinforcements are adopted for manufacturing the steel reinforcement cage, the distance between the steel reinforcements is 160 mm, the refractory materials are further tightened through the steel reinforcement cage, the possibility of cracks is reduced, and the convection nozzle body is protected.

Description

Technical Field

[0001] The invention relates to the technical field of smoke treatment of a blast furnace swing flow nozzle, in particular to a smoke collection device for a blast furnace swing flow nozzle. Background Art

[0002] There are two large height differences in the process of molten iron in the blast furnace flowing from the iron ditch into the swing nozzle and pouring from the swing nozzle into the molten iron tank car. The molten iron has a fast speed and a large flow rate. The high-temperature molten iron contacts the surrounding air for a short time to form a strong thermal plume phenomenon, which produces a lot of smoke and dust. In addition, in order to facilitate operation and maintenance, an open observation hole is provided on the swing nozzle cover, so a large amount of smoke often comes out of the observation hole, which not only affects the environmental sanitation of the factory, but also often causes the operator to be unable to observe the flow of molten steel in time, causing production accidents.

[0003] A Chinese patent with publication number CN102134623B discloses a smoke and dust collection hood for a blast furnace swinging flow nozzle, comprising a frame, which is a rectangular concrete structural wall, and exhaust ports are arranged on the concrete structural walls on both long sides, the exhaust ports are connected to one end of an exhaust pipe, and the other end of the exhaust pipe is connected to an exhaust fan; a top cover is arranged at the upper end of the frame, an observation hole is arranged on the top cover, the bottom end of the frame is fixed on a support leg, the swinging flow nozzle is arranged inside the frame, the output port of the molten iron groove passes through the frame and is located inside the frame, and the output port of the molten iron groove is located above the swinging flow nozzle; molten iron tank cars are arranged below both ends of the swinging flow nozzle; the invention has a simple structure, and the arrangement of the bottom plate and the exhaust ports effectively prevents the smoke and dust from the swinging flow nozzle from overflowing, greatly improves the operating environment of the workers, and improves the labor efficiency of the workers.

[0004] In the current existing technology, the swing spout is an important equipment for tapping iron in front of the blast furnace. During the baking process, due to the influence of refractory thickness, baking process and other factors, longitudinal cracks will be generated on both sides of the swing spout. After the swing spout is corroded during iron tapping, cracks will enter, which will affect the service life of the swing, and in serious cases, cause accidents such as molten iron falling to the ground.

[0005] To this end, the present invention provides a smoke and dust collection device for a blast furnace swing nozzle. Summary of the invention

[0006] To this end, the technical problem to be solved by the present invention is to overcome the problem in the prior art that the swing nozzle is an important equipment for tapping iron in front of a blast furnace. During the baking process, due to the influence of the thickness of the refractory material, the baking process and other factors, longitudinal cracks will be generated on both sides of the swing nozzle. The swing nozzle will enter the cracks after being corroded during iron tapping, which will affect the service life of the swing and even cause accidents such as molten iron falling to the ground.

[0007] In order to solve the above technical problems, the present invention provides a blast furnace swing nozzle smoke collection device, comprising:

[0008] Frame;

[0009] A top plate fixedly connected to the top of the frame;

[0010] Four observation holes opened on the top plate;

[0011] A base plate fixedly connected to the bottom of the frame;

[0012] A nozzle body disposed inside the frame;

[0013] A connecting block is fixedly connected to the bottom of the nozzle body, a first motor is fixedly connected to the outer wall of the frame, an output shaft of the first motor is rotatably connected to the frame through a bearing, and the output shaft of the first motor extends to the inner wall of the frame away from the first motor through a connecting rod; the connecting block is fixedly connected to the connecting rod; iron outlets are provided at both ends of the nozzle body, and the nozzle body comprises a refractory buffer layer, a steel shell and a steel cage from the inside to the outside; the refractory buffer layer comprises refractory bricks fixedly connected to the inner wall of the steel shell, the refractory brick seams are filled with fireproof cotton, and the inner wall of the refractory bricks is coated with refractory material; the steel cage is fixedly connected to the outer wall of the steel shell; an iron outlet groove is connected and fixedly connected to the inner wall of the frame, and one end of the iron outlet groove is directly above the nozzle body.

[0014] In one embodiment of the present invention, two mounting plates are fixedly connected to the top of the base plate, a gear is rotatably connected between the two mounting plates via a rotating shaft, a semi-toothed ring is fixedly connected to the outer wall of the connecting block, and the semi-toothed ring meshes with the gear.

[0015] In one embodiment of the present invention, two discharge ports are provided on the bottom plate, and the two discharge ports cooperate with the iron outlets respectively; a plurality of baking tubes are fixedly connected to the inner wall of the bottom plate, and the baking tubes include straight tubes and longitudinal tubes connected and fixedly connected.

[0016] In one embodiment of the present invention, two lower material barrels are fixedly connected to the bottom of the base plate, both of which cooperate with the discharge port and have a cross-sectional area larger than the area of ​​the discharge port; the outer side walls of the lower material barrels are slidably connected to a lifting frame.

[0017] In one embodiment of the present invention, a molten iron ladle cart is provided below the unloading barrel, the outer side walls of the molten iron ladle cart are fixedly connected with limiting grooves, the unloading barrel cooperates with the molten iron ladle cart, and the limiting grooves cooperate with the lifting frame; four moving wheels are installed at the bottom of the molten iron ladle cart; two guide rails are provided below the molten iron ladle cart, and the moving wheels roll on the guide rails respectively.

[0018] In one embodiment of the present invention, a mounting frame is fixedly connected to the bottom of the base plate; two reciprocating screw rods are rotatably connected to the mounting frame via bearings, and the tops of the reciprocating screw rods are rotatably connected to the bottom of the base plate via bearings, and two connecting plates are fixedly connected between the two lifting frames, and the connecting plates are respectively threaded on the reciprocating screw rods; the bottoms of the reciprocating screw rods are fixedly connected to rotating wheels, and a belt is sleeved between the two rotating wheels; an L-shaped plate is fixedly connected to the bottom of the mounting frame, and a second motor is fixedly connected to the L-shaped plate, and the output shaft of the second motor is fixedly connected to one end of the reciprocating screw rod.

[0019] In one embodiment of the present invention, two fixing plates are fixedly connected to two side walls of the lifting frame respectively; a plurality of sliding columns are fixedly connected to the bottom of the bottom plate, and the fixing plates are slidably connected to the sliding columns respectively.

[0020] In one embodiment of the present invention, two side panels are fixedly connected to the side walls of the frame, blowers are fixedly connected to the side panels, two air outlet pipes are connected and fixedly connected to the side walls of the frame, one ends of the air outlet pipes are installed on the blowers; the top ends of the blowers are connected and fixedly connected to air supply pipes, smoke elimination barrels are respectively provided on both sides of the frame, one end of the air supply pipe is inserted in the smoke elimination barrel, and smoke elimination liquid is provided in the smoke elimination barrel.

[0021] In one embodiment of the present invention, a Y-type filter is installed on the air outlet pipe, and one end of the Y-type filter is threadedly connected to a filter cap.

[0022] In one embodiment of the present invention, four support columns are fixedly connected to the bottom of the base plate, and the support columns are respectively arranged at four corners of the base plate.

[0023] The above technical solution of the present invention has the following advantages compared with the prior art:

[0024] A smoke and dust collection device for a blast furnace swing flow nozzle described in the present invention is characterized in that a layer of refractory bricks is laid inside the steel shell of the swing flow nozzle body through the cooperation of the flow nozzle body, a refractory buffer layer, a steel shell and a steel cage, and the refractory brick joints are filled with fireproof cotton, and the brick joints are controlled within 5mm. The refractory bricks and fireproof cotton are used to buffer the expansion stress and water separation generated by the swing castable during the baking process, further releasing the expansion stress and reducing the crack generation of the thick refractory material on both sides of the swing; a steel cage is added at the bottom of the steel shell, and the steel cage is made of 10mm steel bars with a spacing of 160mm. The steel cage is used to further tighten the refractory material to reduce the possibility of crack generation; when discharging molten iron, the molten iron is flowed to the flow nozzle body through the iron discharge groove through the blast furnace, and the flow nozzle body can be rotated after the set flow time, and the molten iron flows out from the iron discharge port, the flow nozzle body is restored, and the iron discharge continues, and then the flow nozzle body is turned to another molten iron tank car until the molten iron tank car is full; the protection of the flow nozzle body is achieved through the provision of the refractory buffer layer and the steel cage.

[0025] The smoke and dust collection device of a blast furnace swing flow nozzle described in the present invention cooperates with a rotating wheel, a belt and a reciprocating screw. When the molten iron ladle car moves to the bottom of the discharge barrel, the bottom of the lifting frame needs to be inserted into the limit groove, and the second motor is turned on, and the connected reciprocating screw is driven to rotate by the output shaft of the second motor, and the connected rotating wheel is driven to rotate by the reciprocating screw. The rotating wheel drives another rotating wheel to rotate through the belt, and the connected reciprocating screw is driven to rotate when the rotating wheel rotates, thereby realizing the synchronous rotation of the two reciprocating screws, and the connecting plate is driven up and down by the reciprocating screw, and the lifting frame is driven up and down by the connecting plate. When the lifting frame descends into the limit groove, it cooperates with the limit groove to prevent smoke and dust from overflowing; when the lifting frame rises to the bottom plate, the limit on the molten iron ladle car is released, and the molten iron ladle car can move.

[0026] The smoke and dust collecting device for a blast furnace swinging spout described in the present invention generates smoke and dust when molten iron flows from the iron outlet groove into the spout body through the cooperation of a blower and a smoke elimination barrel. Smoke and dust are also generated when molten iron flows through the spout body to the molten iron tank car. The smoke and dust are captured in the frame through the cooperation of the frame, the top plate and the bottom plate. By turning on the blower, the smoke and dust are quickly sucked out through the air outlet pipe under the action of the blower, and then transported to the smoke elimination barrel through the air supply pipe. The smoke and dust enter the smoke elimination liquid to eliminate the smoke and dust. The setting of the blower not only accelerates the air flow, but also generates negative pressure in the frame. The smoke and dust in the frame will not be discharged from the observation hole, thereby reducing environmental pollution and maintaining the visual observation of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below according to specific embodiments of the present invention in conjunction with the accompanying drawings.

[0028] Figure 1 is a stereogram of the present invention;

[0029] Figure 2 It is a partial stereogram of the present invention;

[0030] Figure 3 is a cross-sectional view of the present invention;

[0031] Figure 4 is a stereogram of the gear and the half gear ring in the present invention;

[0032] Figure 5 It is a three-dimensional diagram of the molten iron tank car in the present invention;

[0033] Figure 6 It is a three-dimensional diagram of the lifting frame and the unloading barrel in the present invention;

[0034] Figure 7 It is a three-dimensional diagram of the limiting groove in the present invention;

[0035] Figure 8 It is a three-dimensional diagram of the smoke elimination barrel of the present invention;

[0036] Description of the accompanying drawings: 1. frame; 11. top plate; 12. bottom plate; 13. observation hole; 14. support column; 15. baking tube; 16. discharge port; 2. iron outlet groove; 3. first motor; 31. nozzle body; 311. refractory buffer layer; 312. steel shell; 313. steel cage; 32. iron outlet; 33. connecting block; 34. half gear ring; 35. gear; 36. mounting plate; 4. guide rail; 41. Molten iron ladle car; 42, limit groove; 43, moving wheel; 44, lifting frame; 441, fixed plate; 442, sliding column; 45, L-shaped plate; 451, second motor; 452, reciprocating screw rod; 453, mounting frame; 454, connecting plate; 455, rotating wheel; 456, belt; 46, unloading barrel; 5, exhaust pipe; 51, Y-type filter; 52, blower; 53, air pipe; 54, smoke elimination barrel; 55, side panel. DETAILED DESCRIPTION

[0037] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0038] See also Figure 1 - Figure 8 The present invention provides a blast furnace swing flow nozzle smoke capture device, comprising: a frame 1; a top plate 11 fixedly connected to the top of the frame 1; four observation holes 13 opened on the top plate 11; a bottom plate 12 fixedly connected to the bottom of the frame 1; a flow nozzle body 31 arranged inside the frame 1; a connecting block 33 is fixedly connected to the bottom of the flow nozzle body 31, a first motor 3 is fixedly connected to the outer wall of the frame 1, the output shaft of the first motor 3 is rotatably connected to the frame 1 through a bearing, and the output shaft of the first motor 3 extends to the inner wall of the frame 1 away from the first motor 3 through a connecting rod; the connecting block 33 It is fixed on the connecting rod; both ends of the flow nozzle body 31 are provided with an iron outlet 32, and the flow nozzle body 31 includes a refractory buffer layer 311, a steel shell 312 and a steel cage 313 from the inside to the outside; the refractory buffer layer 311 includes refractory bricks fixed to the inner wall of the steel shell 312, the refractory brick joints are filled with fireproof cotton, and the inner wall of the refractory bricks is coated with refractory material; the steel cage 313 is fixed to the outer wall of the steel shell 312; the inner wall of the frame 1 is connected and fixed with an iron outlet groove 2, and one end of the iron outlet groove 2 is directly above the flow nozzle body 31.

[0039] When the nozzle body 31 provided by the present invention is in use, the nozzle body 31 includes a refractory buffer layer 311, a steel shell 312 and a steel cage 313 from the inside to the outside. By setting the refractory buffer layer 311, a layer of refractory bricks is laid inside the steel shell 312 of the swing nozzle body 31, and the refractory brick joints are filled with fireproof cotton. The brick joints are controlled within 5mm. The refractory bricks and fireproof cotton are used to buffer the expansion stress and water separation generated by the swing castable during the baking process, further release the expansion stress, and reduce the cracks in the thick refractory material on both sides of the swing. A steel cage 313 is added at the bottom of the steel shell 312. The steel cage 313 is made of 10mm steel bars with a spacing of 160mm. The steel cage 313 is used to further tighten the refractory material. The possibility of cracks is reduced; when molten iron is discharged, the molten iron is flowed to the nozzle body 31 through the iron discharge groove 2 through the blast furnace. After the flow time is set, the nozzle body 31 can be rotated, and the molten iron flows out from the iron discharge port 32, and the nozzle body 31 is restored to continue to discharge iron, and then the nozzle body 31 is turned to another molten iron tank car 41 until the molten iron tank car 41 is full; the nozzle body 31 is protected by the arrangement of the refractory buffer layer 311 and the steel cage 313; the smoke and dust are captured on the inner side of the frame 1 by the arrangement of the frame 1, the top plate 11 and the bottom plate 12 to prevent overflow; the arrangement of the blower 52 not only accelerates the air flow, but also generates negative pressure in the frame 1, and the smoke and dust in the frame 1 will not be discharged from the observation hole 13.

[0040] Furthermore, if Figure 3 and Figure 4 As shown, two mounting plates 36 are fixedly connected to the top of the bottom plate 12 , and a gear 35 is rotatably connected between the two mounting plates 36 via a rotating shaft. A semi-toothed ring 34 is fixedly connected to the outer wall of the connecting block 33 , and the semi-toothed ring 34 meshes with the gear 35 .

[0041] When the semi-toothed ring 34 and the gear 35 provided by the present invention are used to drive the nozzle body 31 to rotate, the first motor 3 is turned on, and the first motor 3 drives the connecting rod to rotate through the output shaft, and the connecting rod drives the connecting block 33 to rotate the semi-toothed ring 34, and the gear 35 is driven to rotate through the semi-toothed ring 34. The semi-toothed ring 34 and the gear 35 cooperate to provide a support point for the nozzle body 31 to prevent the molten iron in the nozzle body 31 from being too heavy, resulting in loss of control during the rotation of the nozzle body 31.

[0042] Furthermore, if Figure 2 and Figure 3 As shown, two discharge ports 16 are provided on the bottom plate 12, and the two discharge ports 16 cooperate with the iron outlet 32 ​​respectively; a plurality of baking tubes 15 are fixedly connected to the inner wall of the bottom plate 12, and the baking tubes 15 include straight tubes and longitudinal tubes connected and fixedly connected.

[0043] When the baking tube 15 provided by the present invention is in use, longitudinal baking tubes 15 are added on both sides of the straight tube to increase the baking area on both sides of the nozzle body 31, thereby avoiding the phenomenon of cracks caused by uneven heating due to the refractory material being too thick, thereby improving the swing baking tube 15 mode, and opening a discharge port 16 on the bottom plate 12, and the discharge port 16 cooperates with the iron outlet 32 ​​to avoid the discharge port 16 being too small and the molten iron splashing onto the bottom plate 12.

[0044] Furthermore, if Figure 3 and Figure 6 As shown, two lower material barrels 46 are fixedly connected to the bottom of the base plate 12 , and the lower material barrels 46 are matched with the discharge port 16 , and the cross-sectional area is larger than the area of ​​the discharge port 16 ; the outer side walls of the lower material barrels 46 are slidably connected with the lifting frame 44 .

[0045] When the lower barrel 46 provided by the present invention is in use, the cross-sectional area of ​​the lower barrel 46 is larger than the area of ​​the discharge port 16, thereby reducing the splashing of molten iron on the inner wall of the lower barrel 46, and by providing a lifting frame 44, the area of ​​smoke and dust protection is expanded.

[0046] Furthermore, if Figure 3 and Figure 5 As shown, a molten iron ladle trolley 41 is provided below the discharge barrel 46, the outer side walls of the molten iron ladle trolley 41 are fixedly connected with a limiting groove 42, the discharge barrel 46 cooperates with the molten iron ladle trolley 41, and the limiting groove 42 cooperates with the lifting frame 44; four moving wheels 43 are installed at the bottom of the molten iron ladle trolley 41; two guide rails 4 are provided below the molten iron ladle trolley 41, and the moving wheels 43 roll on the guide rails 4 respectively.

[0047] When the molten iron ladle car 41 provided by the present invention is in use, the cross-sectional area of ​​the molten iron ladle car 41 is slightly larger than the cross-sectional area of ​​the discharge barrel 46, thereby ensuring the inflow of molten iron. When tapping iron, the bottom of the lifting frame 44 is inserted into the limiting groove 42, thereby preventing the smoke and dust generated when the molten iron contacts the molten iron ladle car 41 from overflowing. By setting the moving wheels 43 and the guide rails 4, the movement of the molten iron ladle car 41 is facilitated.

[0048] Furthermore, if Figure 6 and Figure 7As shown, a mounting frame 453 is fixedly connected to the bottom of the base plate 12; two reciprocating screw rods 452 are rotatably connected to the mounting frame 453 through bearings, and the tops of the reciprocating screw rods 452 are rotatably connected to the bottom of the base plate 12 through bearings, and two connecting plates 454 are fixedly connected between the two lifting frames 44, and the connecting plates 454 are respectively threaded on the reciprocating screw rods 452; a rotating wheel 455 is fixedly connected to the bottom of the reciprocating screw rods 452, and a belt 456 is sleeved between the two rotating wheels 455; an L-shaped plate 45 is fixedly connected to the bottom of the mounting frame 453, and a second motor 451 is fixedly connected to the L-shaped plate 45, and the output shaft of the second motor 451 is fixedly connected to one end of the reciprocating screw rod 452.

[0049] When the rotating wheel 455, belt 456 and reciprocating screw rod 452 provided by the present invention are in use, when the molten iron ladle car 41 moves to the right below the unloading barrel 46, it is necessary to insert the bottom of the lifting frame 44 into the limiting groove 42, and by turning on the second motor 451, the connected reciprocating screw rod 452 is driven to rotate by the output shaft of the second motor 451, and the connected rotating wheel 455 is driven to rotate by the reciprocating screw rod 452, and the rotating wheel 455 drives another rotating wheel 455 to rotate through the belt 456. When the rotating wheel 455 rotates, it drives the connected reciprocating screw 452 to rotate, thereby realizing the synchronous rotation of the two reciprocating screws 452, and the connecting plate 454 is driven to move up and down through the reciprocating screw 452, and the lifting frame 44 is driven to move up and down through the connecting plate 454. When the lifting frame 44 descends to the limiting groove 42, it cooperates with the limiting groove 42 to prevent smoke and dust from overflowing; when the lifting frame 44 rises to the bottom plate 12, the limit on the molten iron tank car 41 is released, and the molten iron tank car 41 can move.

[0050] Furthermore, if Figure 6 As shown, two fixing plates 441 are fixedly connected to the two side walls of the lifting frame 44 ; a plurality of sliding posts 442 are fixedly connected to the bottom of the bottom plate 12 , and the fixing plates 441 are slidably connected to the sliding posts 442 .

[0051] When the sliding column 442 provided by the present invention is in use, the lifting frame 44 drives the fixed plate 441 to move up and down during the movement, and the fixed plate 441 slides on the sliding column 442 during the movement, and the sliding column 442 limits the fixed plate 441 in the vertical direction.

[0052] Furthermore, if Figure 8As shown, two side panels 55 are fixedly connected to the side walls of the frame 1, and blowers 52 are fixedly connected to the side panels 55. Two air outlet pipes 5 are connected and fixedly connected to the side walls of the frame 1, and one ends of the air outlet pipes 5 are installed on the blowers 52; the tops of the blowers 52 are connected and fixedly connected to air supply pipes 53, and smoke elimination barrels 54 are respectively provided on both sides of the frame 1, and one ends of the air supply pipes 53 are inserted in the smoke elimination barrels 54, and smoke elimination liquid is provided in the smoke elimination barrels 54.

[0053] When the blower 52 provided by the present invention is in use, smoke and dust will be generated when molten iron flows from the iron outlet groove 2 to the nozzle body 31. Smoke and dust will also be generated when the molten iron flows through the nozzle body 31 to the molten iron tank car 41. The smoke and dust are captured in the frame 1 through the cooperation of the frame 1, the top plate 11 and the bottom plate 12. By turning on the blower 52, the smoke and dust are quickly sucked out through the air outlet pipe 5 under the action of the blower 52, and then transported to the smoke elimination barrel 54 through the air supply pipe 53. The smoke and dust enter the smoke elimination liquid to eliminate the smoke and dust, thereby reducing environmental pollution and maintaining the visual observation of the staff.

[0054] Furthermore, if Figure 8 As shown, a Y-type filter 51 is installed on the air outlet pipe 5, and one end of the Y-type filter 51 is threadedly connected with a filter cap.

[0055] When the Y-type filter 51 provided by the present invention is used, the Y-type filter 51 is provided to quickly filter particulate impurities in the smoke and dust, thereby achieving the function of filtering the smoke and dust.

[0056] Furthermore, if Figure 1 As shown, four support columns 14 are fixedly connected to the bottom of the base plate 12 , and the support columns 14 are respectively arranged at the four corners of the base plate 12 .

[0057] When the support column 14 provided by the present invention is in use, the support column 14 is provided to support the bottom plate 12 and the frame 1 , wherein sufficient space is provided below the bottom plate 12 to facilitate the movement of the molten iron ladle truck 41 .

[0058] Working principle: The nozzle body 31 includes a refractory buffer layer 311, a steel shell 312 and a steel cage 313 from the inside to the outside. By setting the refractory buffer layer 311, a layer of refractory bricks is laid inside the steel shell 312 of the swing nozzle body 31. The refractory brick joints are filled with fireproof cotton, and the brick joints are controlled within 5mm. Refractory bricks and fireproof cotton are used to buffer the expansion stress and water separation generated by the swing castable during the baking process, further release the expansion stress, and reduce the cracks in the thick refractory material on both sides of the swing; a steel cage 313 is added at the bottom of the steel shell 312. The steel cage 313 is made of 10mm steel bars with a spacing of 160m. m, using the steel cage 313 to further tighten the refractory material to reduce the possibility of cracks; when tapping molten iron, the molten iron is passed through the blast furnace to flow to the nozzle body 31 through the tapping groove 2, and the nozzle body 31 can be rotated after the set flow time, and the molten iron flows out from the tapping port 32, and the nozzle body 31 is restored to continue tapping, and then the nozzle body 31 is turned to another molten iron tank car 41 until the molten iron tank car 41 is full; the nozzle body 31 is protected by the setting of the refractory buffer layer 311 and the steel cage 313; the smoke and dust are captured on the inner side of the frame 1 by the setting of the frame 1, the top plate 11 and the bottom plate 12 to prevent overflow;

[0059] In the process of driving the nozzle body 31 to rotate, the first motor 3 is turned on, and the first motor 3 drives the connecting rod to rotate through the output shaft, and drives the connecting block 33 to drive the semi-toothed ring 34 to rotate through the connecting rod, and drives the gear 35 to rotate through the semi-toothed ring 34. The semi-toothed ring 34 and the gear 35 cooperate to provide a support point for the nozzle body 31 to prevent the molten iron in the nozzle body 31 from being too heavy, resulting in loss of control during the rotation of the nozzle body 31.

[0060] When the molten iron ladle 41 moves to the bottom of the discharge barrel 46, the bottom of the lifting frame 44 needs to be inserted into the limiting groove 42, and the second motor 451 is turned on, and the output shaft of the second motor 451 drives the connected reciprocating screw 452 to rotate, and the reciprocating screw 452 drives the connected rotating wheel 455 to rotate, and the rotating wheel 455 drives another rotating wheel 455 to rotate through the belt 456. When the rotating wheel 455 rotates, it drives the connected reciprocating screw 452 to rotate, so as to realize the synchronous rotation of the two reciprocating screws 452, and the connecting plate 454 is driven up and down by the reciprocating screw 452, and the lifting frame 44 is driven up and down by the connecting plate 454. When the lifting frame 44 drops into the limiting groove 42, it cooperates with the limiting groove 42 to prevent smoke and dust from overflowing; when the lifting frame 44 rises to the bottom plate 12, the limit of the molten iron ladle 41 is released, and the molten iron ladle 41 can move;

[0061] When molten iron flows from the iron outlet groove 2 to the nozzle body 31, smoke and dust will be generated. When molten iron flows through the nozzle body 31 to the molten iron tank car 41, smoke and dust will also be generated. The smoke and dust are captured in the frame 1 through the cooperation of the frame 1, the top plate 11 and the bottom plate 12. By turning on the blower 52, the smoke and dust are quickly sucked out through the air outlet pipe 5 under the action of the blower 52, and then transported to the smoke elimination barrel 54 through the air supply pipe 53. The smoke and dust enter the smoke elimination liquid to eliminate the smoke and dust. The setting of the blower 52 not only accelerates the air flow, but also generates negative pressure in the frame 1. The smoke and dust in the frame 1 will not be discharged from the observation hole 13, thereby reducing environmental pollution and maintaining the visual observation of the staff.

[0062] Obviously, the above embodiments are merely examples for clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the protection scope of the invention.

Claims

1. A blast furnace swing nozzle smoke collection device, comprising: Frame (1); A top plate (11) fixedly connected to the top of the frame (1); Four observation holes (13) are provided on the top plate (11); A bottom plate (12) fixedly connected to the bottom of the frame (1); A nozzle body (31) disposed inside the frame (1); The invention is characterized in that: a connecting block (33) is fixedly connected to the bottom of the nozzle body (31); a first motor (3) is fixedly connected to the outer wall of the frame (1); an output shaft of the first motor (3) is rotatably connected to the frame (1) through a bearing; the output shaft of the first motor (3) extends to the inner wall of the frame (1) away from the first motor (3) through a connecting rod; the connecting block (33) is fixedly connected to the connecting rod; both ends of the nozzle body (31) are provided with an iron outlet (32); the nozzle body (31) is connected from the inside to the outside of the nozzle body (31); The outer portion of the frame (1) includes a refractory buffer layer (311), a steel shell (312) and a steel cage (313); the refractory buffer layer (311) includes refractory bricks fixedly connected to the inner wall of the steel shell (312); the refractory brick seams are filled with fireproof cotton; the inner wall of the refractory bricks is coated with refractory material; the steel cage (313) is fixedly connected to the outer wall of the steel shell (312); the inner wall of the frame (1) is connected and fixedly connected to an iron outlet groove (2); one end of the iron outlet groove (2) is directly above the nozzle body (31).

2. A blast furnace swing nozzle smoke capture device according to claim 1, characterized in that: Two mounting plates (36) are fixedly connected to the top of the bottom plate (12), a gear (35) is rotatably connected between the two mounting plates (36) via a rotating shaft, a semi-toothed ring (34) is fixedly connected to the outer wall of the connecting block (33), and the semi-toothed ring (34) is meshed with the gear (35).

3. A blast furnace swing nozzle smoke capture device according to claim 2, characterized in that: The bottom plate (12) is provided with two discharge ports (16), and the two discharge ports (16) respectively cooperate with the iron outlet (32); a plurality of baking tubes (15) are fixedly connected to the inner wall of the bottom plate (12), and the baking tubes (15) include straight tubes and longitudinal tubes that are connected and fixedly connected.

4. A blast furnace swing nozzle smoke capture device according to claim 3, characterized in that: Two lower material barrels (46) are fixedly connected to the bottom of the base plate (12), and the lower material barrels (46) are matched with the discharge port (16) and have a cross-sectional area larger than the area of ​​the discharge port (16); the outer side walls of the lower material barrels (46) are slidably connected to a lifting frame (44).

5. A blast furnace swing nozzle smoke capture device according to claim 4, characterized in that: A molten iron ladle car (41) is provided below the unloading barrel (46), the outer side wall of the molten iron ladle car (41) is fixedly connected to a limiting groove (42), the unloading barrel (46) cooperates with the molten iron ladle car (41), and the limiting groove (42) cooperates with the lifting frame (44); four moving wheels (43) are installed at the bottom of the molten iron ladle car (41); two guide rails (4) are provided below the molten iron ladle car (41), and the moving wheels (43) roll on the guide rails (4) respectively.

6. A blast furnace swing nozzle smoke collection device according to claim 5, characterized in that: The bottom of the base plate (12) is fixedly connected to a mounting frame (453); two reciprocating screw rods (452) are rotatably connected to the mounting frame (453) via bearings, and the tops of the reciprocating screw rods (452) are rotatably connected to the bottom of the base plate (12) via bearings; two connecting plates (454) are fixedly connected between the two lifting frames (44), and the connecting plates (454) are respectively threadedly connected to the reciprocating screw rods (452); the bottoms of the reciprocating screw rods (452) are fixedly connected to rotating wheels (455), and a belt (456) is sleeved between the two rotating wheels (455); the bottom of the mounting frame (453) is fixedly connected to an L-shaped plate (45), and a second motor (451) is fixedly connected to the L-shaped plate (45), and an output shaft of the second motor (451) is fixedly connected to one end of the reciprocating screw rod (452).

7. A blast furnace swing nozzle smoke capture device according to claim 6, characterized in that: Two fixing plates (441) are fixedly connected to the two side walls of the lifting frame (44); a plurality of sliding columns (442) are fixedly connected to the bottom of the bottom plate (12), and the fixing plates (441) are slidably connected to the sliding columns (442).

8. A smoke and dust collection device for a blast furnace swing nozzle according to claim 7, characterized in that: Two side panels (55) are fixedly connected to the side wall of the frame (1), and a blower (52) is fixedly connected to the side panels (55). Two air outlet pipes (5) are connected and fixedly connected to the side wall of the frame (1), and one end of each of the air outlet pipes (5) is mounted on the blower (52); the top of each of the blowers (52) is connected and fixedly connected to an air supply pipe (53), and smoke elimination barrels (54) are respectively provided on both sides of the frame (1), and one end of each of the air supply pipes (53) is inserted into the smoke elimination barrel (54), and smoke elimination liquid is provided in the smoke elimination barrel (54).

9. A smoke and dust collection device for a blast furnace swing nozzle according to claim 8, characterized in that: A Y-type filter (51) is installed on each of the air outlet pipes (5), and one end of each of the Y-type filters (51) is threadedly connected to a filter cap.

10. A smoke and dust collection device for a blast furnace swing nozzle according to claim 9, characterized in that: Four support columns (14) are fixedly connected to the bottom of the base plate (12), and the support columns (14) are respectively arranged at the four corners of the base plate (12).

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