Blast furnace clamping type tuyere mechanism

Abstract

A blast furnace clamping tuyer mechanism relates to the field of blast furnace ironmaking equipment technology. By improving the power source and structure of the tuyer, the stability of the tuyer is enhanced, thereby reducing energy consumption and cost. It includes a base, on which a driving unit and a clamping unit are mounted. The clamping unit is slidably connected to the base via a mounting seat. The driving unit drives the mounting seat to reciprocate on the base. The clamping end of the clamping unit is used to clamp the tuyer pipe. The driving unit includes a rotating disk, with a connecting rod rotatably connected to its surface. The other end of the connecting rod is rotatably connected to the mounting seat near the rotating disk. The driving unit includes a power source for driving the rotating disk. The driving unit also includes an inner housing, on which a drive shaft and a driven shaft are rotatably connected. The output end of the driving unit is connected to one end of the drive shaft. Drive gears are symmetrically arranged on both sides of the housing. There are two rotating disks, both on the driven shaft and cooperating with the drive gears.

Description

Technical Field

[0001] This invention relates to the field of blast furnace ironmaking equipment technology, specifically to a blast furnace clamping tuyeres mechanism. Background Technology

[0002] The tuyere is a key component and process spare part in blast furnace ironmaking. It is part of the air supply pipeline and is usually composed of a large tuyere sleeve, a medium tuyere sleeve, and a small tuyere sleeve. Its function is to inject hot air into the blast furnace at high speed to provide the necessary oxygen for combustion and reduction reactions.

[0003] In the following situations, special refractory materials will be used to block the tuyeres to safely isolate the blast furnace from the air supply system and gas pipeline network: Firstly, planned shutdowns, such as replacing tuyeres or addressing cooling wall leaks, require a scheduled production stoppage. Secondly, emergency shutdowns are necessary when equipment malfunctions, such as hot blast stove valve assembly failure, mud gun damage, or blower shutdown. Thirdly, shutdowns occur when blast furnace conditions are unfavorable, such as suspended charge or continuous poor tapping. The duration of these shutdowns varies depending on the specific situation, typically ranging from 4-48 hours to over seven days. To resume normal production, obstructions must be removed, allowing hot blast to re-enter the furnace, thus restoring production.

[0004] Currently, the conventional technical solution for removing blockages is to insert a steel rod into the tuyere, break the blockage, and then pull the rod out. However, an invention patent application (application number 202411125863.1) discloses a mud-clearing device for blast furnace tuyere sleeves. This device uses a cylinder to drive an impactor and a chisel, which use the impactor and steel rod to clear the blockage. This method can easily replace manual clearing and is more efficient. However, in practical applications, it requires a compressor to provide compressed gas and a corresponding air passage, resulting in higher costs and energy consumption. Summary of the Invention

[0005] I. Technical problems to be solved To address the shortcomings of existing technologies, this invention proposes a blast furnace clamping tuyere mechanism. By improving the power source and structure of the tuyere, the stability of the tuyere is enhanced, thereby reducing energy consumption and costs.

[0006] II. Specific Technical Solutions A blast furnace clamping tuyer mechanism includes a base, on which a driving part and a clamping part are disposed. The clamping part is slidably connected to the base via a mounting seat. The driving part can drive the mounting seat to reciprocate on the base. The clamping end of the clamping part is used to clamp the tuyer pipe. The driving end of the driving part is configured to drive the mounting seat to slide on the base after the tuyer pipe is clamped at the clamping end, so that the tuyer pipe's tuyer end breaks open the blockage in the blast furnace tuyer. The driving part includes a rotating wheel, the surface of which rotates... The drive unit includes a connecting rod, the other end of which is rotatably connected to the mounting base near the rotating disk. The drive unit also includes an inner housing, on which a drive shaft and a driven shaft are rotatably connected. The power source is a drive motor. The output end of the drive motor is connected to one end of the drive shaft, and drive gears are symmetrically arranged on both sides of the housing. There are two rotating disks, both mounted on the driven shaft and cooperating with the drive gears.

[0007] Implementation principle and working principle: In this scheme, the drive motor drives the drive shaft to rotate, and the drive gears on both sides of the drive shaft synchronously drive the two rotating disks on the driven shaft to rotate in the same direction; a connecting rod is rotatably connected at the eccentric position of each rotating disk, and the other end of the connecting rod is rotatably connected to the mounting base; when the rotating disks rotate, the connecting rod converts the circular motion into the reciprocating linear motion of the mounting base along the base; the clamping part first clamps the air-pumping pipe, and then the mounting base slides forward, causing the air-pumping end to break open the blockage; when the mounting base moves backward, the air-pumping pipe exits the air outlet; the two symmetrically arranged rotating disks are in phase. The resulting driving force acts symmetrically on both sides of the mounting base, eliminating the eccentric torque generated by unilateral drive. Compared with existing ventilation equipment, this solution is entirely driven by a motor, eliminating the need for compressed gas and air circuit systems, significantly reducing equipment costs and operating energy consumption. The symmetrical double-disc structure ensures balanced force on the mounting base, smooth reciprocating motion, avoids uneven wear, and extends the life of slide rails and transmission components. The crank-connecting rod mechanism can achieve a larger punching stroke and thrust, adapting to sealing materials of different thicknesses. Compared with pneumatic impact methods, the push-punch method causes less impact damage to the vent sleeve.

[0008] Preferably, the base is provided with at least one first slide rail, and the bottom of the mounting base is provided with a slide platform that mates with the first slide rail, the slide platform being fixedly connected to the mounting base. The advantage of this preferred embodiment is that the first slide rail is fixedly installed on the base, and the slide platform is fixedly connected to the bottom of the mounting base, forming a sliding fit pair with the first slide rail. When the drive unit moves the mounting base, the slide rail pair acts as a guide and load-bearing element, restricting the mounting base's degrees of freedom other than reciprocating motion; effectively ensuring the straightness of the movement of the mounting base and the air vent, ensuring the air vent end is accurately aligned with the center of the air outlet; its sliding friction resistance is low, its transmission efficiency is high, and its structure is simple, easy to process and assemble.

[0009] Preferably, the clamping part includes clamping ends symmetrically arranged on both sides of the air vent pipe. Each clamping end includes a mounting plate, and abutment claws are provided on the opposite side of the two mounting plates. A first connecting rod is provided on the opposite side of the two mounting plates. The other end of the first connecting rod is rotatably connected to a second connecting rod, and the other end of the second connecting rod is rotatably connected to the mounting base. A second slide rail is also provided on both sides of the mounting base near the drive part. A clamping push plate is slidably connected to the second slide rail. A clamping push rod is rotatably connected to both ends of the clamping push plate. The other end of the clamping push rod is rotatably connected to the rotatable connection point of the first and second connecting rods. A third slide rail is also provided on the mounting base. Both mounting plates are slidably connected to the third slide rail and can be close to or far apart along the third slide rail. A clamping motor is also provided at the bottom of the clamping push plate. The output end of the clamping motor is connected to a lead screw slide assembly, and the slide end of the lead screw slide assembly is fixedly connected to the bottom of the clamping push plate. The advantages of this preferred design are that the clamping motor drives the screw slide assembly, causing the clamping push plate to move back and forth along the second slide rail. When the clamping push plate moves forward, the clamping push rods on both sides push the hinge point of the first and second connecting rods to open outward. However, since the end of the second connecting rod is fixed on the mounting base, the first connecting rod will push the mounting plate to move inward in opposite directions along the third slide rail, thereby causing the abutment claws on both sides to clamp the air-purifying pipe. Conversely, when the clamping push plate moves backward, the mounting plates on both sides move away from each other, releasing the air-purifying pipe. It uses a linkage mechanism to amplify the clamping force, ensuring reliable clamping and good self-locking. At the same time, its symmetrical double-end synchronous clamping and automatic centering effectively ensure that the air-purifying pipe and the air-purifying port are coaxial. The screw slide drives the clamping push plate, providing precise position control and adapting to air-purifying pipes of different diameters. The clamping action and driving action are separated, facilitating individual control.

[0010] Preferably, the abutment claws are arranged in multiple sets, spaced apart on one side of the two mounting plates, and an arc-shaped groove is provided on the opposite side of the abutment claws. The surface of the arc-shaped groove is provided with an anti-friction mechanism. The beneficial effects of this preferred embodiment are that the multiple sets of abutment claws are arranged at intervals along the axial direction of the air duct, increasing the clamping length and improving stability; the arc-shaped groove forms a surface contact with the outer wall of the air duct, increasing the contact area and avoiding local crushing; the anti-friction mechanism can be a wear-resistant coating, ball bearings, or needle rollers, etc., to reduce scratches on the surface of the air duct during clamping.

[0011] Preferably, the base is further provided with a guide portion, which includes a mounting frame. Upper and lower guide wheels are respectively provided on the upper and lower sides of the mounting frame, and both guide wheels have an arc-shaped groove in the middle for limiting the air-pumping pipe. The height of the upper guide wheel on the mounting frame is adjustable. The advantages of this preferred embodiment are that the guide portion is located on the base, in front of the clamping portion, and the air-pumping pipe passes through the gap between the upper and lower guide wheels, with the arc-shaped groove restricting its radial movement. The adjustable height of the upper guide wheel can accommodate air-pumping pipes of different diameters and adjust the clamping force. It also provides auxiliary support and guidance for the front end of the air-pumping pipe, preventing it from sagging due to excessive cantilever length and reducing movement resistance.

[0012] Preferably, the guide section further includes a lower guide motor and a lifting motor, the output end of the lower guide motor being connected to the rotating shaft of the lower guide wheel; the mounting frame includes a vertically arranged guide rod, the top end of the guide rod being provided with a mounting part, and a worm gear screw jack being provided on the mounting part, the lifting end of the worm gear screw jack being used to drive the upper guide wheel to rise and fall, and the lifting motor being used to drive the worm gear screw jack; the beneficial effects of this preferred embodiment are that the lower guide motor actively drives the lower guide wheel to rotate, which can assist in conveying the air-purifying pipe or assist in its retraction; the lifting motor precisely controls the height of the upper guide wheel through the worm gear screw jack, realizing the adjustment of the clamping force on the air-purifying pipe; the guide rod ensures the straightness of the upper guide wheel's rise and fall.

[0013] Preferably, the mounting base is detachably provided with an outer shell, and a second shell is provided on the side of the outer shell away from the clamping part. The outer shell and the second shell are provided with through holes for the movement of the blasting end. The advantages of this preferred embodiment are that the outer shell and the second shell enclose the mounting base, the clamping part and part of the driving part, leaving only the through holes for the blasting end to enter and exit; the shell is detachable, which facilitates internal maintenance; it can also prevent the high temperature and dust environment in front of the blast furnace from contaminating and damaging the internal transmission mechanism, improving operational safety, avoiding injury from exposed moving parts, and its detachable design facilitates inspection and replacement of vulnerable parts.

[0014] Preferably, a conical protective cylinder is provided on the side of the outer shell away from the clamping part, and a transverse guide part is also provided inside the outer shell. The transverse guide part includes guide wheels provided on both sides of the air-pumping end, and a second arc-shaped receiving groove is provided in the middle of both guide wheels. The beneficial effect of this preferred embodiment is that the conical protective cylinder extends forward and can be partially inserted into or close to the air vent during operation, blocking the splashed slag and iron and high-temperature airflow. The transverse guide part is located inside the outer shell and the second arc-shaped receiving grooves of the guide wheels on both sides provide transverse limitation for the air-pumping end, preventing it from swinging in the horizontal direction. In particular, the transverse guide part further restricts the radial degree of freedom of the air-pumping pipe, ensuring that the air-pumping end accurately enters the air vent. The guide wheel structure changes sliding friction into rolling friction, reducing wear and resistance.

[0015] The beneficial effects of this invention are as follows: 1. By adopting a crank-connecting rod mechanism with symmetrical double rotating discs and gear transmission, the use of air source is avoided and energy consumption is reduced, while the smooth reciprocating motion of the mounting base is achieved, the off-center load torque is eliminated, the slide rail wear is reduced, and the equipment life and operational stability are significantly improved.

[0016] 2. By setting up a clamping part, the clamping force is amplified and automatically aligned by using a linkage mechanism to ensure that the air vent pipe and the air outlet are coaxial, the clamping is reliable and adaptable to air vent pipes of different diameters; with multiple sets of abutment claws and anti-friction mechanisms, damage to the air vent pipe is reduced.

[0017] 3. By setting up a guide section, a lateral guide section and a conical protective cylinder, a multi-level guiding and protection system is formed to ensure that the air-dredging pipe always maintains a straight movement during the impact process, while preventing high-temperature slag and iron splashes from affecting the operation of the equipment, thus greatly improving the safety of operation and the accuracy of dredging. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall lateral structure of the blast furnace clamping tuyer mechanism of the present invention. Figure 2 This is a top view of the drive unit of the present invention. Figure 3 This is a top view of the clamping part of the present invention. Figure 4 This is a schematic diagram of the guide section of the present invention.

[0019] Figure 5 This is an isometric view of the clamping part of the present invention.

[0020] Explanation of reference numerals in the attached figures: Base 1, First slide rail 101, Drive unit 2, Rotating wheel 201, Connecting rod 202, Inner housing 203, Drive shaft 204, Driven shaft 205, Drive gear 206, Drive motor 207, Clamping unit 3, Mounting base 301, Mounting plate 302, Abutting claw 303, First connecting rod 304, Second connecting rod 305, Second slide rail 306, Clamping push plate 307, Clamping push rod 308, Third slide rail 309, Clamping motor 310, Lead screw slide assembly 311. Arc-shaped groove 312, anti-friction mechanism 313, outer shell 314, second shell 315, conical protective cylinder 316, transverse guide part 317, guide wheel 318, second arc-shaped receiving groove 319, slide table 320, air-purifying pipe 4, air-purifying end 401, guide part 5, mounting bracket 501, upper guide wheel 502, lower guide wheel 503, arc-shaped groove 504, lower guide motor 505, lifting motor 506, guide rod 507, mounting part 508, worm gear screw jack 509. Detailed Implementation

[0021] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby providing a clearer and more explicit definition of the scope of protection of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0022] like Figure 1-5 As shown:

[0023] A blast furnace clamping tuyere mechanism includes a base 1, on which a driving part 2 and a clamping part 3 are arranged sequentially from left to right.

[0024] In practice, two parallel first slide rails 101 are provided on the base 1; the clamping part 3 is slidably connected to the base 1 through a mounting base 301. Specifically, the bottom of the mounting base 301 is fixedly connected to a slide table 320 that cooperates with the first slide rails 101. The slide table 320 and the first slide rails 101 form a sliding pair to ensure that the mounting base 301 can only reciprocate linearly along the direction of the first slide rails 101.

[0025] Among them, such as Figure 1 and 3As shown, the drive unit 2 includes an inner housing 203, on which a drive shaft 204 and a driven shaft 205 are rotatably connected; the output end of the drive motor 207 is connected to one end of the drive shaft 204, and two drive gears 206 are symmetrically arranged on both sides of the inner housing 203 on the drive shaft 204; two rotating disks 201 are arranged on the driven shaft 205, and the two rotating disks 201 mesh with the two drive gears 206 respectively; a connecting rod 202 is hinged on the disk surface (offset from the center) of each rotating disk 201, and the other end of the connecting rod 202 is hinged to the side of the mounting base 301 near the rotating disk 201.

[0026] During implementation, the drive motor 207 starts, driving the drive shaft 204 and the drive gears 206 on both sides to rotate synchronously. The drive gears 206 drive the two rotating disks 201 on the driven shaft 205 to rotate in the same direction. When the rotating disks 201 rotate, the connecting rod 202 converts the circular motion into the reciprocating linear motion of the mounting base 301 along the first slide rail 101.

[0027] In practice, the clamping part 3 is mounted on the mounting base 301. The clamping part 3 includes clamping ends symmetrically arranged on both sides of the air vent pipe 4. Each clamping end includes a mounting plate 302. Multiple sets of abutting claws 303 are provided on the opposite side of the two mounting plates 302, specifically two on each side, with four contact points. An arc-shaped groove 312 is provided on the opposite side of the abutting claws 303. An anti-friction mechanism 313 is provided on the surface of the arc-shaped groove 312. In this embodiment, it is a wear-resistant coating. A first connecting rod 304 is provided on the opposite side of the two mounting plates 302. The other end of the first connecting rod 304 is rotatably connected to a second connecting rod 305. The other end of the second connecting rod 305 is rotatably connected to the mounting base 301.

[0028] In implementation, the mounting base 301 is provided with second slide rails 306 on both sides near the drive unit 2. Clamping push plates 307 are slidably connected to the second slide rails 306. Clamping push rods 308 are rotatably connected to both ends of the clamping push plates 307. The other ends of the clamping push rods 308 are rotatably connected to the rotatable connection between the first connecting rod 304 and the second connecting rod 305. The mounting base 301 is also provided with a third slide rail 309. The two mounting plates 302 are slidably connected to the third slide rail 309 and can be close to or far apart along the third slide rail 309. A clamping motor 310 is also provided at the bottom of the clamping push plate 307. The output end of the clamping motor 310 is connected to a lead screw slide assembly 311. The slide end of the lead screw slide assembly 311 is fixedly connected to the bottom of the clamping push plate 307.

[0029] During implementation, the clamping motor 310 drives the lead screw slide assembly 311, which in turn moves the clamping push plate 307 forward along the second slide rail 306. The clamping push plate 307 pushes the hinge point of the first connecting rod 304 and the second connecting rod 305 through the clamping push rod 308, thereby causing the two mounting plates 302 to move relative to each other along the third slide rail 309 and abut against the claw 303 to clamp the air pipe 4. Conversely, when the clamping push plate 307 moves backward, the two mounting plates 302 move away from each other and release the air pipe 4.

[0030] In specific implementation, a guide part 5 is also provided on the base 1. The guide part 5 includes a mounting frame 501. The upper guide wheel 502 and the lower guide wheel 503 are respectively provided on the upper and lower sides of the mounting frame 501. An arc-shaped groove 504 for limiting the air pipe 4 is provided in the middle of both guide wheels. The height of the upper guide wheel 502 on the mounting frame 501 is adjustable.

[0031] In this embodiment, the guide part 5 further includes a lower guide motor 505 and a lifting motor 506. The output end of the lower guide motor 505 is connected to the rotating shaft of the lower guide wheel 503. The mounting frame 501 includes a vertically arranged guide rod 507. The top end of the guide rod 507 is provided with a mounting part 508. A worm gear screw jack 509 is provided on the mounting part 508. The lifting end of the worm gear screw jack 509 is used to drive the upper guide wheel 502 to rise and fall. The lifting motor 506 is used to drive the worm gear screw jack 509.

[0032] In practice, a housing 314 is detachably provided on the outer side of the mounting base 301. A second housing 315 is provided on the side of the housing 314 away from the clamping part 3. The housing 314 and the second housing 315 are provided with through holes 304 for the movement of the air-blowing end 401. A conical protective cylinder 316 is also provided on the side of the housing 314 away from the clamping part 3. A transverse guide part 317 is also provided inside the housing 314. The transverse guide part 317 includes guide wheels 318 provided on both sides of the transverse direction of the air-blowing end 401. A second arc-shaped receiving groove 319 is provided in the middle of both guide wheels 318.

[0033] Work process: like Figure 1-5 As shown, firstly, according to the actual position of the blast furnace tuyeres, the height of the upper guide wheel 502 is adjusted by the lifting motor 506 so that the gap between the upper guide wheel 502 and the lower guide wheel 503 is adapted to the diameter of the tuyeres 4; the mounting base 301 is pre-adjusted to the starting position by the drive motor 207.

[0034] Start the clamping motor 310, the clamping push plate 307 moves forward, and the abutment claws 303 on both sides simultaneously clamp the air pipe 4 inward. The arc groove 312 and the anti-friction mechanism 313 ensure stable clamping and do not damage the surface of the air pipe.

[0035] Start the drive motor 207, the drive shaft 204 drives the two rotating disks 201 to rotate synchronously, and the connecting rod 202 drives the mounting base 301 to slide forward along the first slide rail 101; the air-pumping end 401 is precisely aligned with the center of the blast furnace tuyeres under the multi-stage guidance of the guide part 5 and the transverse guide part 317.

[0036] As the mounting base 301 moves forward, the air-pumping end 401 breaks open the blockage in the air vent; at this time, the conical protective cylinder 316 is close to the air vent, blocking the splashing of high-temperature slag and iron. After the blockage is completed, the drive motor 207 continues to rotate, the mounting base 301 retracts, and the air-pumping pipe 4 leaves the air vent.

[0037] When it is necessary to replace the air hose 4 or remove it, the clamping motor 310 reverses its drive, the clamping push plate 307 moves backward, the two mounting plates 302 move away from each other, and the air hose 4 is released; the lower guide motor 505 can drive the lower guide wheel 503 to rotate, assisting the air hose 4 to be removed.

[0038] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims.

Claims

1. A blast furnace clamping tuyere mechanism, comprising a base (1), wherein a driving part (2) and a clamping part (3) are provided on the base (1), the clamping part (3) is slidably connected to the base (1) via a mounting seat (301), the driving part (2) can drive the mounting seat (301) to reciprocate on the base (1), and the clamping end of the clamping part (3) is used to clamp the tuyere pipe (4); the driving end of the driving part (2) is configured to drive the mounting seat (301) to slide on the base (1) after the tuyere pipe (4) is clamped at the clamping end, so that the tuyere end (401) of the tuyere pipe (4) breaks open the blockage in the blast furnace tuyere; characterized in that: The drive unit (2) includes a rotating disk (201), on which a connecting rod (202) is rotatably connected. The other end of the connecting rod (202) is rotatably connected to the mounting base (301) on the side near the rotating disk (201). The drive unit (2) includes a power source for driving the rotating disk (201) to rotate. The drive unit (2) also includes an inner housing (203), on which a drive shaft (204) and a driven shaft (205) are rotatably connected. The power source is a drive motor (205). The output end of the drive motor (205) is connected to one end of the drive shaft (204). The drive shaft (204) has drive gears (206) symmetrically arranged on both sides of the housing. There are two rotating disks (201), both of which are arranged on the driven shaft (205) and cooperate with the drive gears (206).

2. The blast furnace clamping tuyere mechanism according to claim 1, characterized in that: The base (1) is provided with at least one first slide rail (101), and the bottom of the mounting base (301) is provided with a slide table (320) that cooperates with the first slide rail (101). The slide table (320) is fixedly connected to the mounting base (301).

3. The blast furnace clamping tuyere mechanism according to claim 1, characterized in that: The clamping part (3) includes clamping ends symmetrically arranged on both sides of the air vent (4). Each clamping end includes a mounting plate (302). An abutment claw (303) is provided on one side of the two mounting plates (302) facing each other. A first connecting rod (304) is provided on one side of the two mounting plates facing away from each other. The other end of the first connecting rod (304) is rotatably connected to a second connecting rod (305). The other end of the second connecting rod (305) is rotatably connected to the mounting base (301). A second slide rail (306) is also provided on both sides of the mounting base (301) near the drive part (2). A clamping push plate (307) is slidably connected on the second slide rail (306). 7) Both ends of the clamping push rod (308) are rotatably connected, and the other end of the clamping push rod (308) is rotatably connected to the rotatable connection of the first connecting rod (304) and the second connecting rod (305); the mounting base (301) is also provided with a third slide rail (309), and the two mounting plates (302) are slidably connected to the third slide rail (309) and can be close to or far away from each other along the third slide rail (309); the bottom of the clamping push plate (307) is also provided with a clamping motor (310), and the output end of the clamping motor (310) is connected to a lead screw slide assembly (311), and the slide end of the lead screw slide assembly (311) is fixedly connected to the bottom of the clamping push plate (307).

4. The blast furnace clamping tuyere mechanism according to claim 3, characterized in that: The abutting claws (303) are in multiple sets, spaced apart on the side of the two mounting plates (302) that are close to each other, and an arc groove (312) is provided on the opposite side of the abutting claws (303), and an anti-friction mechanism (313) is provided on the surface of the arc groove (312).

5. The blast furnace clamping tuyere mechanism according to claim 1, characterized in that: The base (1) is also provided with a guide part (5), which includes a mounting frame (501). The upper and lower sides of the mounting frame (501) are respectively provided with an upper guide wheel (502) and a lower guide wheel (503), and the middle of the two guide wheels is provided with an arc groove (504) for limiting the air pipe (4). The height of the upper guide wheel (502) on the mounting frame (501) is adjustable.

6. The blast furnace clamping tuyere mechanism according to claim 5, characterized in that: The guide part (5) further includes a lower guide motor (505) and a lifting motor (506). The output end of the lower guide motor (505) is connected to the shaft of the lower guide wheel (503). The mounting frame (501) includes a vertically arranged guide rod (507). The top end of the guide rod (507) is provided with a mounting part (508). A worm gear screw jack (509) is provided on the mounting part (508). The lifting end of the worm gear screw jack (509) is used to drive the upper guide wheel (502) to rise and fall. The lifting motor (506) is used to drive the worm gear screw jack (509).

7. The blast furnace clamping tuyere mechanism according to claim 1, characterized in that: The mounting base (301) is detachably provided with an outer shell (314) on the outside. The outer shell is provided with a second shell (315) on the side away from the clamping part (2). The outer shell (314) and the second shell (315) are provided with through holes (304) for the movement of the air-puffing end (401).

8. The blast furnace clamping tuyere mechanism according to claim 7, characterized in that: A conical protective cylinder (316) is provided on the side of the outer shell (314) away from the clamping part (2). A transverse guide part (317) is also provided inside the outer shell (314). The transverse guide part (317) includes guide wheels (318) provided on both sides of the air blower end (401). A second arc-shaped receiving groove (319) is provided in the middle of both guide wheels (318).

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