Swing device for safe and rapid replacement of blast furnace

Abstract

The invention belongs to the technical field of rapid replacement of swing flow nozzles, and particularly relates to a swing device for safe and rapid replacement of a blast furnace, which comprises a fixed bracket, a furnace body fixedly connected to the top of the fixed bracket, a molten iron tank fixedly connected to the bottom of the furnace body, a limiting bracket arranged below the molten iron tank, and a swing base fixedly connected to the top end of the limiting bracket, a rotating rod is rotationally connected between the inner walls of the swinging base, a swinging block is fixedly connected to the surface of the rotating rod, and a flow nozzle body is slidably connected into the swinging block; through rotation of the threaded rod, the clamping plate is controlled to fix and release the flow nozzle body on the swing block, the problem that in the prior art, screws and other fixing materials for fixing the flow nozzle body and the swing block need to be sequentially taken out is solved, the time needed for replacing the flow nozzle body is shortened, the replacement efficiency is improved, and the replacement cost is reduced. Meanwhile, the output end of the second driving motor drives the threaded rod to rotate, long-time climbing operation of workers is not needed, and the safety risk is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of rapid replacement of swing nozzles, in particular to a swing device for safe and rapid replacement of blast furnaces. Background Art

[0002] The swing device for safe and fast replacement of a blast furnace is used for safely and quickly replacing a swing nozzle fixed on the swing device.

[0003] In the prior art, molten iron produced by blast furnace ironmaking flows into the molten iron trough through the iron outlet, flows out through the output port of the molten iron trough, and then flows into the swinging nozzle below the output port of the molten iron trough, and the swinging nozzle is driven to rotate by the swinging device, and then the molten iron is collected by the collecting vehicle below it through the two ends of the swinging nozzle. However, due to the extremely high temperature of the molten iron, the swinging nozzle is subjected to the erosion of the high-temperature molten iron during long-term use, which accelerates the wear of the swinging nozzle, and thus the swinging nozzle needs to be replaced regularly. In the prior art, screws and other fixing materials are usually used to fix the swinging nozzle to the swing plate on the swinging device. When replacing the swinging nozzle, the staff needs to climb to the position of the swinging device and take out the fixing materials one by one, then take out the swinging nozzle to be replaced by a crane, and place the new swinging nozzle on the swinging device, repeat the above operation, and then complete the replacement of the swinging nozzle.

[0004] However, there are still some shortcomings in the replacement process of the swinging flow nozzle. When disassembling the swinging flow nozzle, it is necessary to remove the screws and other fixing materials between it and the swinging plate on the swinging device one by one. This operation is too cumbersome, which increases the time required to replace the swinging flow nozzle and reduces the efficiency of replacement. At the same time, the staff need to work at height for a long time, which increases the safety risk.

[0005] To this end, the present invention provides a swing device for safe and rapid replacement of a blast furnace. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problems is: the swing device for safe and fast replacement of a blast furnace described in the present invention comprises a fixed bracket, the top of the fixed bracket is fixedly connected to a furnace body, the bottom of the furnace body is fixedly connected to an iron trough, a limit bracket is arranged below the iron trough, the top of the limit bracket is fixedly connected to a swing base, a rotating rod is rotatably connected between the inner walls of the swing base, a swing block is fixedly connected to the surface of the rotating rod, a flow nozzle body is slidably connected in the swing block, an electric telescopic rod 1 is fixedly connected to the top of the limit bracket, a driving motor 1 is fixedly connected to the top of the limit bracket, and the output end of the driving motor 1 is fixedly connected to one end of the rotating rod;

[0008] A clamping assembly is arranged on one side of the swing block away from the driving motor, and the clamping assembly is used for quickly clamping and fixing the swing flow nozzle.

[0009] Preferably, the nozzle body is located on a movement track of the electric telescopic rod.

[0010] Preferably, the clamping assembly includes a displacement groove 1, the displacement groove 1 is opened on the side of the swing block away from the driving motor 1, a clamping plate is slidably connected in the displacement groove 1, a limiting plate is fixedly connected to the top of the swing base, the limiting plate is located on the side where the clamping plate is located, a threaded rod is rotatably connected between the inner wall of the displacement groove 1 and the limiting plate, the threaded rod is threadedly connected to the clamping plate, the driving motor 2 is fixedly connected to the top of the limiting bracket, and the output end of the driving motor 2 is fixedly connected to an end of the threaded rod away from the clamping plate.

[0011] Preferably, a crushing assembly is provided on the swing block, and the crushing assembly is used to crush the iron slag formed by cooling and solidifying the molten iron between the swing nozzle and the swing plate. The crushing assembly includes two electric telescopic rods, and the two electric telescopic rods are symmetrically arranged at one end of the swing block. A guide groove one is provided at one end of the swing block, and a guide rod one is slidably connected in the guide groove one. A guide groove two is provided on one side of the swing block, and the guide groove two is located on the side away from the guide groove one. A guide rod two is slidably connected in the guide groove two. The guide rod two is located between the two electric telescopic rods two, and a limiting groove is provided on one side of the swing block, and a guide block is slidably connected in the limiting groove. The guide block is L-shaped and consists of a longitudinal short rod and a transverse long rod. The longitudinal short rod on the guide block slides in the limiting groove, and one end of the transverse long rod on the guide block is fixedly connected to a micro motor. The guide block is located on the side close to the guide rod two, and a screw rod is slidably connected between the two electric telescopic rods two.

[0012] Preferably, the limit groove is located on the swing block on the side where the clamping plate is located, the guide block is located on the side of the electric telescopic rod 2 away from the guide rod 2, and the screw rod passes through the guide rod 1, the guide rod 2 and the output end of the electric telescopic rod 2 close to the guide rod 2.

[0013] Preferably, the surface of the screw rod is threadedly connected with a displacement rod, the swing block is provided with a second displacement groove, the top of the displacement rod is fixedly connected with a crushing saw, and the crushing saw is slidably connected in the second displacement groove.

[0014] Preferably, the second displacement groove is provided between the bottom end of the nozzle body and the top of the swing block.

[0015] Preferably, the electric telescopic rod 2 is only arranged on one side of the swing block, the guide groove 1, guide rod 1, displacement groove 2 and crushing saw are each provided with one, and the remaining structures in the crushing assembly are symmetrically arranged at one end of the swing block away from the electric telescopic rod 2.

[0016] Preferably, the top of the limit bracket is fixedly connected to a water tank, one end of the displacement rod close to the bottom of the second electric telescopic rod is fixedly connected to a piston cylinder, a piston plate is slidably connected in the piston cylinder, a piston rod is slidably connected in the piston cylinder, one end of the piston rod close to the piston cylinder is fixed to one side of the piston plate, a compression spring is fixedly connected between an inner wall of one side of the piston cylinder and one end of the piston plate, a water injection pipe is fixedly connected between the middle part of the piston cylinder and the bottom of the water tank, a water outlet pipe is fixedly connected to the top of one end of the piston cylinder away from the piston rod, and a nozzle is fixedly connected to the other end of the water outlet pipe, and the nozzle faces the end of the piston rod away from the piston plate.

[0017] Preferably, one side of the swing block is located on the movement trajectory of the piston rod.

[0018] The beneficial effects of the present invention are as follows:

[0019] 1. The present invention controls the clamping plate to fix and release the nozzle body on the swing block by rotating the threaded rod, thereby avoiding the problem in the prior art that the screws and other fixing materials used to fix the nozzle body and the swing block need to be taken out in sequence, reducing the time required for replacing the nozzle body and improving the replacement efficiency. At the same time, the threaded rod is driven to rotate by the second output end of the driving motor, eliminating the need for workers to work at height for a long time, thereby reducing safety risks.

[0020] 2. The present invention enables the crushing saw to crush the iron slag formed after the molten iron solidifies between the connection point of the nozzle body and the swing block under the combined action of the back-and-forth movement of the crushing saw under the action of the electric telescopic rod 2 and the left-right displacement of the crushing saw driven by the rotation of the screw rod, so as to prevent the problem of the nozzle body being crushed when being lifted due to the iron slag generated after the molten iron solidifies between the nozzle body and the swing block during the process of the electric telescopic rod lifting the nozzle body, which causes the contact surface of the nozzle body and the swing block to be fixed. This ensures the flatness of the contact surface between the swing block and the nozzle body, ensures the accuracy of the replaced nozzle body when in use, and also further improves the replacement efficiency.

[0021] 3. The present invention uses the reciprocating motion of the water tank to spray the water between the piston cylinder and the piston plate onto the crushing saw through the nozzle, thereby reducing the temperature of the crushing saw when the crushing saw crushes the iron slag between the flow nozzle body and the swing block, and extending the service life of the crushing saw. At the same time, spraying water on the crushing saw through the nozzle also plays a role in dust reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below in conjunction with the accompanying drawings.

[0023] Figure 1 It is a schematic elevation diagram of the overall device of the present invention;

[0024] Figure 2 It is a partial structural schematic diagram of the swing device of the present invention;

[0025] Figure 3 It is a partial structural schematic diagram of the clamping assembly of the present invention;

[0026] Figure 4 This is a schematic diagram of the position relationship between the limit bracket and the swing base of the present invention;

[0027] Figure 5 For the present invention Figure 4 The enlarged schematic diagram at A in the middle;

[0028] Figure 6 It is a schematic diagram of the position relationship between the limit bracket and the electric telescopic rod of the present invention;

[0029] Figure 7 It is a schematic diagram of the position relationship between the swing block and the electric telescopic rod of the present invention;

[0030] Figure 8 It is a partial structural schematic diagram of the crushing component of the present invention;

[0031] Fig. 9 This is a schematic diagram of the position relationship between the water tank and the water injection pipe of the present invention;

[0032] Fig.10 This is a schematic diagram of the positional relationship between the piston plate and the piston rod of the present invention.

[0033] Reference numerals: 1, fixed bracket; 11, furnace body; 12, iron trough;

[0034] 21. Limit bracket; 22. Swing base; 23. Swing block; 24. Displacement slot 1; 25. Rotating rod; 26. Driving motor 1; 27. Clamping plate; 28. Limit plate; 29. ​​Threaded rod; 210. Driving motor 2; 211. Nozzle body; 212. Electric telescopic rod 1;

[0035] 31. Electric telescopic rod 2; 32. Guide slot 1; 33. Guide rod 1; 34. Guide slot 2; 35. Guide rod 2; 36. Limiting slot; 37. Guide block; 38. Micro motor; 39. Screw rod; 310. Displacement rod; 311. Displacement slot 2; 312. Crushing saw;

[0036] 41. Water tank; 42. Piston cylinder; 43. Piston plate; 44. Piston rod; 45. Compression spring; 46. Water filling pipe; 47. Water outlet pipe; 48. Nozzle. DETAILED DESCRIPTION

[0037] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0038] Embodiment 1

[0039] like Figures 1 to 10 As shown, a swing device for safe and fast replacement of a blast furnace according to an embodiment of the present invention comprises a fixed bracket 1, a furnace body 11 is fixedly connected to the top of the fixed bracket 1, a molten iron tank 12 is fixedly connected to the bottom of the furnace body 11, a limited bracket 21 is arranged below the molten iron tank 12, a swing base 22 is fixedly connected to the top of the limited bracket 21, a rotating rod 25 is rotatably connected between the inner walls of the swing base 22, a swing block 23 is fixedly connected to the surface of the rotating rod 25, a flow nozzle body 211 is slidably connected inside the swing block 23, an electric telescopic rod 212 is fixedly connected to the top of the limited bracket 21, the flow nozzle body 211 is located on the motion trajectory of the electric telescopic rod 212, a driving motor 26 is fixedly connected to the top of the limited bracket 21, and the output end of the driving motor 26 is fixedly connected to one end of the rotating rod 25;

[0040] A clamping assembly is provided on one side of the swing block 23 away from the driving motor 26, and the clamping assembly is used to quickly clamp and fix the swing flow nozzle.

[0041] Specifically, there are still some deficiencies in the process of replacing the nozzle body 211. When disassembling the nozzle body 211, it is necessary to remove the screws and other fixing materials between it and the swing block 23 on the swing device in turn. This operation is too cumbersome, which increases the time required for replacing the nozzle body 211 and reduces the efficiency of replacement. At the same time, the staff needs to work at height for a long time, which increases the safety risk. Therefore, the present invention solves this problem by setting a corresponding structure. First, the replacement of the nozzle body 211 is divided into two parts: disassembly and installation. When disassembling the nozzle body 211, the nozzle body 211 is hoisted by a crane, and then the clamping assembly is used to make it no longer clamp the fixed nozzle body 211. Then, the four corners of the bottom end of the nozzle body 211 are lifted up by the four electric telescopic rods 212, and it is hoisted away by the crane; when installing, the above steps are reversed to complete the replacement of the nozzle body 211.

[0042] The present invention fixes and releases the nozzle body 211 through a clamping assembly, thereby avoiding the problem in the prior art that fixing materials such as screws used to fix the nozzle body 211 and the swing block 23 need to be removed in sequence, reducing the time required to replace the nozzle body 211 and improving the replacement efficiency.

[0043] Embodiment 2

[0044] like Figures 2 to 10 As shown, compared with Example 1, another implementation of the present invention is:

[0045] like Figures 2 to 5 and Figure 7 As shown, the clamping assembly of this embodiment includes a displacement groove 24, which is opened on the side of the swing block 23 away from the drive motor 26, a clamping plate 27 is slidably connected in the displacement groove 24, a limiting plate 28 is fixedly connected to the top of the swing base 22, and the limiting plate 28 is located on the side where the clamping plate 27 is located, a threaded rod 29 is rotatably connected between the inner wall of the displacement groove 24 and the limiting plate 28, and the threaded rod 29 is threadedly connected to the clamping plate 27, and a drive motor 210 is fixedly connected to the top of the limiting bracket 21, and the output end of the drive motor 210 is fixedly connected to the end of the threaded rod 29 away from the clamping plate 27.

[0046] Specifically, when the clamping plate 27 contacts the limiting plate 28, the portion of the clamping plate 27 away from the limiting plate 28 slides in the displacement groove 1 24;

[0047] By starting the driving motor 210, the output shaft of the driving motor 210 rotates and drives the threaded rod 29 to rotate synchronously. Since the clamping plate 27 slides in the displacement groove 1 24, the clamping plate 27 only performs horizontal linear motion under the limiting effect of the displacement groove 1 24, so that when the threaded rod 29 rotates, the clamping plate 27 slides horizontally, and then the displacement of the clamping plate 27 contacts one side of the object to be replaced on the swing block 23, so that the contact between the clamping plate 27 and the inner wall of the swing block 23 is tighter, thereby achieving the effect of clamping and fixing. When the driving motor 210 is controlled to rotate in the opposite direction, through the above steps, the clamping plate 27 no longer clamps the object to be replaced.

[0048] The present invention controls the clamping plate 27 to fix and release the nozzle body 211 on the swing block 23 by rotating the threaded rod 29, thereby avoiding the problem in the prior art that the screws and other fixing materials used to fix the nozzle body 211 and the swing block 23 need to be taken out in sequence, thereby reducing the time required for replacing the nozzle body 211 and improving the replacement efficiency. At the same time, the threaded rod 29 is driven to rotate by the output end of the second drive motor 210, which eliminates the need for workers to work at heights for a long time, thereby reducing safety risks.

[0049] like Figures 2 to 8As shown, in this embodiment, a crushing assembly is arranged on the swing block 23, and the crushing assembly is used to crush the iron slag formed by cooling and solidifying the molten iron between the swing nozzle and the swing plate. The crushing assembly includes an electric telescopic rod 2 31, and the electric telescopic rod 2 31 is symmetrically arranged at one end of the swing block 23. A guide groove 1 32 is penetrated through one end of the swing block 23, and a guide rod 1 33 is slidably connected in the guide groove 1 32. A guide groove 2 34 is arranged on one side of the swing block 23, and the guide groove 2 34 is located on the side away from the guide groove 1 32. A guide rod 2 35 is slidably connected in the guide groove 2 34. The guide rod 2 35 is located between the two electric telescopic rods 2 31, and a limiting groove 36 is arranged on one side of the swing block 23. The limiting groove 36 is located on the swing block 23 on the side where the clamping plate 27 is located. A guide block 37 is slidably connected in the limiting groove 36. The guide block 37 is located on the side of the electric telescopic rod 2 31 away from the guide rod 2 35. The guide block 37 is L-shaped and consists of a longitudinal short rod and a transverse long rod. The longitudinal short rod on the guide block 37 slides in the limiting groove 36. One end of the transverse long rod on the guide block 37 is fixedly connected to a micro motor 38. The guide block 37 is located on the side close to the guide rod 2 35. A screw rod 39 is slidably connected between the two electric telescopic rods 2 31. The screw rod 39 passes through the guide rod 1 33, the guide rod 2 35 and the output end of the electric telescopic rod 2 31 close to the guide rod 2 35.

[0050] Specifically, the length of the second guide rod 35 is greater than the depth of the second guide groove 34. When crushing, the second electric telescopic rod 31 is started, and the output end of the second electric telescopic rod 31 is extended and retracted, which drives the first guide rod 33, the screw rod 39, the second guide rod 35, the micro motor 38 and the guide block 37 to move synchronously. When the second electric telescopic rod 31 is started, the micro motor 38 is started, and the screw rod 39 is driven to rotate synchronously through the rotation of the output end of the micro motor 38.

[0051] like Figure 2 and Figures 4 to 8 As shown, in this embodiment, a displacement rod 310 is threadedly connected to the surface of the lead screw 39, a displacement groove 211 is provided on the swing block 23, and the displacement groove 211 is provided between the bottom end of the nozzle body 211 and the top of the swing block 23. A crushing saw 312 is fixedly connected to the top of the displacement rod 310, and the crushing saw 312 is slidably connected in the displacement groove 211.

[0052] Specifically, when the electric telescopic rod 31 contracts and the screw rod 39 rotates, the displacement rod 310 is displaced synchronously with the screw rod 39. At the same time, under the action of the rotation of the screw rod 39 and the displacement groove 311, the displacement rod 310 moves linearly on the screw rod 39, thereby causing the crushing saw 312 to reciprocate in the same direction as the output end of the electric telescopic rod 31 and displace along the axis of the screw rod 39.

[0053] like Figures 2 to 8As shown, in this embodiment, the electric telescopic rod 2 31 is only arranged on one side of the swing block 23, and the guide groove 1 32, the guide rod 1 33, the displacement groove 2 311 and the crushing saw 312 are each provided with one, and the remaining structures in the crushing assembly are symmetrically arranged at one end of the swing block 23 away from the electric telescopic rod 2 31.

[0054] Specifically, through the symmetrical arrangement, the crushing saw 312 cuts the iron slag produced by the solidification of molten iron between the contact surface of the nozzle body 211 and the swing block 23, preventing the contact surface of the nozzle body 211 and the swing block 23 from being fixed, resulting in damage to the surface of the swing block 23 when the nozzle body 211 is removed.

[0055] The present invention enables the crushing saw 312 to reciprocate back and forth under the action of the electric telescopic rod 31 and to move the crushing saw 312 left and right under the combined action of the screw rod 39 rotating to drive the crushing saw 312 to move left and right, so that the crushing saw 312 can crush the iron slag formed after the molten iron solidifies between the connection point of the nozzle body 211 and the swing block 23, thereby preventing the problem of the nozzle body 211 being broken when being lifted up due to the iron slag generated after the molten iron solidifies between the nozzle body 211 and the swing block 23 during the process of the electric telescopic rod 212 lifting the nozzle body 211, thereby preventing the nozzle body 211 from being broken due to the contact surface of the swing block 23 being fixed due to the molten iron solidified between the nozzle body 211 and the swing block 23, thereby ensuring the flatness of the contact surface of the swing block 23 and the nozzle body 211, ensuring the accuracy of the replaced nozzle body 211 when in use, and also further improving the replacement efficiency.

[0056] like Figure 2 , Figure 6 , Figure 7 , Fig. 9 and Fig.10 As shown, in this embodiment, the top of the limit bracket 21 is fixedly connected to the water tank 41, the end of the displacement rod 310 close to the bottom of the electric telescopic rod 31 is fixedly connected to the piston cylinder 42, the piston cylinder 42 is slidably connected with a piston plate 43, the piston cylinder 42 is slidably connected with a piston rod 44, one side of the swing block 23 is located on the movement trajectory of the piston rod 44, the end of the piston rod 44 close to the piston cylinder 42 is fixed to one side of the piston plate 43, a compression spring 45 is fixedly connected between the inner wall of one side of the piston cylinder 42 and one end of the piston plate 43, a water injection pipe 46 is fixedly connected between the middle part of the piston cylinder 42 and the bottom of the water tank 41, the top of the end of the piston cylinder 42 away from the piston rod 44 is fixedly connected to a water outlet pipe 47, the other end of the water outlet pipe 47 is fixedly connected to a nozzle 48, and the nozzle 48 faces the end of the piston rod 44 away from the piston plate 43.

[0057] Specifically, the water tank 41 and the water outlet pipe 47 are both provided with a one-way valve, and the crushing saw 312 is located on the movement track of the water sprayed by the nozzle 48. The above components are provided in two groups;

[0058] As the output end of the electric telescopic rod 31 is extended and retracted, the displacement rod 310 is synchronously extended and retracted, so that during the displacement of the displacement rod 310 toward the side close to the swing block 23, the piston rod 44 contacts the swing block 23, and the compression spring 45 is elastically stretched, so that the piston plate 43 squeezes the water in the piston cylinder 42, and the water is input into the water outlet pipe 47 and sprayed onto the crushing saw 312 through the nozzle 48, thereby cooling the reciprocating crushing saw 312. During the displacement of the displacement rod 310 toward the direction away from the swing block 23, the compression spring 45 elastically contracts, so that the piston rod 44 is reset. At this time, the pressure in the piston cylinder 42 increases, so that the water in the water tank 41 is transported to the inside of the piston cylinder 42 and between the piston plate 43 through the water injection pipe 46, preparing for the next spraying.

[0059] The present invention uses the reciprocating motion of the water tank 41 to spray the water between the piston cylinder 42 and the piston plate 43 onto the crushing saw 312 through the nozzle 48, thereby reducing the temperature of the crushing saw 312 when the crushing saw 312 crushes the iron slag between the flow nozzle body 211 and the swing block 23, thereby extending the service life of the crushing saw 312. At the same time, spraying water on the crushing saw 312 through the nozzle 48 also plays a role in dust reduction.

[0060] Working principle:

[0061] First, replacing the nozzle body 211 is divided into two parts: disassembly and installation. When disassembling the nozzle body 211, the nozzle body 211 is hoisted by a crane, and then the drive motor 210 is started to make the output shaft of the drive motor 210 rotate in the opposite direction and drive the threaded rod 29 to rotate synchronously. Because the clamping plate 27 slides in the displacement groove 1 24, the clamping plate 27 only performs horizontal linear motion under the limiting effect of the displacement groove 1 24, so that the clamping plate 27 slides horizontally when the threaded rod 29 rotates.

[0062] Then, the clamping plate 27 is displaced so that one side of the nozzle body 211 on the swing block 23 no longer interferes with the swing block 23, so that the swing block 23 no longer clamps the fixed nozzle body 211;

[0063] Before the nozzle body 211 is lifted up by the electric telescopic rod 1 212, the electric telescopic rod 2 31 is started. The output end of the electric telescopic rod 2 31 is extended and retracted to drive the guide rod 1 33, the screw rod 39, the guide rod 2 35, the micro motor 38 and the guide block 37 to move synchronously. When the electric telescopic rod 2 31 is started, the micro motor 38 is started. The output end of the micro motor 38 is rotated to drive the screw rod 39 to rotate synchronously.

[0064] At this time, the displacement rod 310 is synchronously displaced with the screw rod 39. Under the action of the screw rod 39 rotating and being located in the second displacement slot 311, the displacement rod 310 performs linear motion on the screw rod 39, thereby causing the crushing saw 312 to reciprocate in the same direction as the output end of the second electric telescopic rod 31, while displacing along the axis of the screw rod 39, thereby performing cutting and crushing.

[0065] As the output end of the electric telescopic rod 21 is extended and retracted, the displacement rod 310 is extended and retracted synchronously, so that during the displacement of the displacement rod 310 toward the side of the swing block 23, the piston rod 44 contacts the swing block 23, and the compression spring 45 is elastically stretched, so that the piston plate 43 squeezes the water in the piston cylinder 42, and the water is input into the water outlet pipe 47 and sprayed onto the crushing saw 312 through the nozzle 48, thereby cooling the reciprocating crushing saw 312. During the displacement of the displacement rod 310 toward the direction away from the swing block 23, the compression spring 45 is elastically contracted, so that the piston rod 44 is reset. At this time, the pressure in the piston cylinder 42 increases, so that the water in the water tank 41 is transported to the inside of the piston cylinder 42 and between the piston plate 43 through the water injection pipe 46, in preparation for the next spraying;

[0066] At this time, the nozzle body 211 is lifted up by the electric telescopic rod 212 and lifted away by the crane; during installation, the above-mentioned clamping assembly is operated in reverse to complete the replacement of the nozzle body 211.

[0067] 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 swing device for safe and fast replacement of a blast furnace, comprising a fixed bracket (1), the top of the fixed bracket (1) is fixedly connected to a furnace body (11), the bottom of the furnace body (11) is fixedly connected to a molten iron tank (12), a limit bracket (21) is arranged below the molten iron tank (12), the top of the limit bracket (21) is fixedly connected to a swing base (22), a rotating rod (25) is rotatably connected between the inner walls of the swing base (22), a swing block (23) is fixedly connected to the surface of the rotating rod (25), a flow nozzle body (211) is slidably connected inside the swing block (23), an electric telescopic rod (212) is fixedly connected to the top of the limit bracket (21), a driving motor (26) is fixedly connected to the top of the limit bracket (21), and the output end of the driving motor (26) is fixedly connected to one end of the rotating rod (25), characterized in that: A clamping assembly is provided on one side of the swing block (23) away from the driving motor (26), and the clamping assembly is used to quickly clamp and fix the swing flow nozzle.

2. A swing device for safe and rapid replacement of a blast furnace according to claim 1, characterized in that: The nozzle body (211) is located on the movement track of the electric telescopic rod 1 (212).

3. A swing device for safe and rapid replacement of a blast furnace according to claim 1, characterized in that: The clamping assembly comprises a displacement groove (24), the displacement groove (24) being arranged on a side of the swing block (23) away from the driving motor (26), a clamping plate (27) being slidably connected in the displacement groove (24), a limiting plate (28) being fixedly connected to the top of the swing base (22), the limiting plate (28) being located on the side where the clamping plate (27) is located, a threaded rod (29) being rotatably connected between the inner wall of the displacement groove (24) and the limiting plate (28), the threaded rod (29) being threadedly connected to the clamping plate (27), a driving motor (210) being fixedly connected to the top of the limiting bracket (21), the output end of the driving motor (210) being fixedly connected to an end of the threaded rod (29) away from the clamping plate (27).

4. A swing device for safe and rapid replacement of a blast furnace according to claim 1, characterized in that: The swing block (23) is provided with a crushing assembly, and the crushing assembly is used to crush the iron slag formed between the swing nozzle and the swing plate when the iron liquid is cooled and solidified. The crushing assembly includes an electric telescopic rod (31), and the electric telescopic rod (31) is symmetrically arranged at one end of the swing block (23). A guide groove (32) is provided through one end of the swing block (23), and a guide rod (33) is slidably connected in the guide groove (32). A guide groove (34) is provided on one side of the swing block (23), and the guide groove (34) is located on a side away from the guide groove (32). A guide rod (33) is slidably connected in the guide groove (34). Guide rod 2 (35) The guide rod 2 (35) is located between the two electric telescopic rods 2 (31). A limiting groove (36) is provided on one side of the swing block (23). A guide block (37) is slidably connected in the limiting groove (36). The guide block (37) is L-shaped and consists of a longitudinal short rod and a transverse long rod. The longitudinal short rod on the guide block (37) slides in the limiting groove (36). One end of the transverse long rod on the guide block (37) is fixedly connected with a micro motor (38). The guide block (37) is located on a side close to the guide rod 2 (35). A screw rod (39) is slidably connected between the two electric telescopic rods 2 (31).

5. A swing device for safe and rapid replacement of blast furnace according to claim 4, characterized in that: The limiting groove (36) is located on the swing block (23) on the side where the clamping plate (27) is located, the guide block (37) is located on the side of the electric telescopic rod (31) away from the guide rod (35), and the screw rod (39) passes through the guide rod (33), the guide rod (35) and the output end of the electric telescopic rod (31) on the side close to the guide rod (35).

6. A swing device for safe and rapid replacement of blast furnace according to claim 4, characterized in that: The surface of the screw rod (39) is threadedly connected with a displacement rod (310), the swing block (23) is provided with a second displacement groove (311), the top of the displacement rod (310) is fixedly connected with a crushing saw (312), and the crushing saw (312) is slidably connected in the second displacement groove (311).

7. A swing device for safe and rapid replacement of blast furnace according to claim 6, characterized in that: The second displacement groove (311) is arranged between the bottom end of the nozzle body (211) and the top of the swing block (23).

8. The swing device for safe and rapid replacement of a blast furnace according to claim 6, characterized in that: The second electric telescopic rod (31) is only arranged on one side of the swing block (23), the first guide groove (32), the first guide rod (33), the second displacement groove (311) and the crushing saw (312) are each provided with one, and the remaining structures in the crushing assembly are symmetrically arranged at one end of the swing block (23) away from the second electric telescopic rod (31).

9. The swing device for safe and rapid replacement of a blast furnace according to claim 6, characterized in that: The top of the limit bracket (21) is fixedly connected to a water tank (41); one end of the displacement rod (310) close to the bottom of the second electric telescopic rod (31) is fixedly connected to a piston cylinder (42); a piston plate (43) is slidably connected inside the piston cylinder (42); a piston rod (44) is slidably connected inside the piston cylinder (42); one end of the piston rod (44) close to the piston cylinder (42) is fixed to one side of the piston plate (43); a compression spring (45) is fixedly connected between an inner wall of one side of the piston cylinder (42) and one end of the piston plate (43); a water injection pipe (46) is fixedly connected between the middle of the piston cylinder (42) and the bottom of the water tank (41); a water outlet pipe (47) is fixedly connected to the top of one end of the piston cylinder (42) away from the piston rod (44); a nozzle (48) is fixedly connected to the other end of the water outlet pipe (47); the nozzle (48) faces the end of the piston rod (44) away from the piston plate (43).

10. A swing device for safe and rapid replacement of a blast furnace according to claim 9, characterized in that: One side of the swing block (23) is located on the movement track of the piston rod (44).

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