Dismounting device for second tuyere sleeve of blast furnace

Abstract

The utility model discloses a dismounting device for a second tuyere sleeve of a blast furnace, and relates to the technical field of metallurgical equipment. The device comprises a pull rod, the head of the pull rod is provided with three connecting rods distributed in a claw shape, the connecting rods are connected with the pull rod through supporting rods, the supporting rods are hinged to the connecting rods, the head of each connecting rod is provided with a hook head, the hook heads are located in a tuyere second sleeve, and the side wall of the tail end of the other end of each connecting rod is provided with an adjusting bolt. The adjusting bolt penetrates through the connecting rod and then is locked on the pull rod, and a handrail is installed at the tail end of the pull rod. The device is simple in structure and convenient to install, the three hook heads are inserted into the inner hole of the blast-furnace tuyere second sleeve during disassembly, the hook heads abut against the inner hole of the blast-furnace tuyere second sleeve through the adjusting bolts, then disassembly is conducted through the handrail, the triangular limiting hook heads avoid the phenomena that stress is uneven and unhooking is generated after the hook heads pull the second sleeve in the disassembly process, and the disassembly efficiency is improved. And the disassembly difficulty of the tuyere second sleeve is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of metallurgical equipment, in particular to a two-set disassembly device for a blast furnace tuyere. Background Art

[0002] The second set of tuyere for an iron-making blast furnace is wrapped in the tuyere combination bricks. After the tuyere combination bricks are corroded, the second set of tuyere will be exposed in the furnace. After being corroded and damaged by high-temperature slag iron, it is difficult to pull it down when replacing the damaged second set of tuyere. The traditional second set of tuyere pulling and unloading device is a single hook. After the hook head pulls the two sets, the force is uneven, which makes it difficult to disassemble the second set of tuyere and easy to get unhooked. Utility Model Content

[0003] In view of the above technical problems, the utility model provides a method for solving the problem that the two sets of blast furnace tuyere are easily unhooked and difficult to disassemble in the existing device.

[0004] In order to achieve the above purpose, the technical solution of the utility model is as follows:

[0005] A second set of disassembly device for blast furnace tuyere comprises a pull rod, wherein the pull rod head is provided with three connecting rods in a claw shape, wherein the connecting rod and the pull rod are connected via a support rod, wherein the support rod and the connecting rod are hinged, wherein the connecting rod head is provided with a hook head, wherein the hook head is located in the second set of tuyere, wherein an adjusting bolt is installed on the side wall at the other end of the connecting rod, wherein the adjusting bolt is locked on the pull rod after passing through the connecting rod, and wherein a handrail is installed at the end of the pull rod.

[0006] Furthermore, a sliding hammer and a thrust plate are sequentially provided on the pull rod, the sliding hammer is slidably connected to the pull rod, two pull rings are symmetrically provided on both sides of the sliding hammer, a traction rope is connected to the pull ring, and the thrust plate is tightly connected to the pull rod.

[0007] Furthermore, it also includes an electric hoist, and the pull rod is also provided with a lifting lug, the lifting lug is located on the right side of the thrust plate, and the lifting lug is connected to the steel wire rope of the electric hoist.

[0008] Compared with the prior art, the utility model has the following beneficial effects: the utility model has a simple structure and is easy to install. During disassembly, after inserting the three hooks into the inner holes of the second set of blast furnace tuyere, tighten the adjusting bolts on the connecting rod. The hooks on the connecting rod expand outwards under the action of the lever and rest against the inner holes of the second set of blast furnace tuyere. Then, the utility model is disassembled through the handrail. The triangular limited hooks avoid uneven force after the hooks pull the two sets during disassembly, resulting in unhooking, thereby reducing the difficulty of disassembling the two sets of tuyere. The disassembly personnel use a traction rope to pull the sliding hammer to hit the thrust plate, and use the impact force to pull out the two sets of tuyere. The disassembly process saves time and effort, and the labor intensity of the operators is low. The utility model is ensured to remain in a horizontal state during disassembly to avoid tilting caused by manual support and increase disassembly resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a structural schematic diagram of the utility model. Description of the drawings:

[0011] 1. Pull rod; 2. Handrail; 3. Lifting eye; 4. Thrust plate; 5. Sliding hammer; 6. Pull ring; 7. Traction rope; 8. Hook; 9. Connecting rod; 10. Support rod; 11. Adjusting bolt; 12. Electric hoist. DETAILED DESCRIPTION

[0012] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0013] A disassembly device for the second set of blast furnace tuyere comprises a pull rod 1, wherein the head of the pull rod 1 is provided with three connecting rods 9 in a claw-shaped distribution, wherein the connecting rod 9 and the pull rod 1 are connected by a support rod 10, wherein the support rod 10 and the connecting rod 9 are hinged, wherein the head of the connecting rod 9 is provided with a hook head 8, wherein the hook head 8 is located in the second set of tuyere, wherein the side wall at the other end of the connecting rod 9 is provided with an adjusting bolt 11, wherein the adjusting bolt 11 is passed through the connecting rod 9 and locked on the pull rod 1, and wherein the end of the pull rod 1 is provided with a handrail 2. After the three hook heads 8 are inserted into the inner holes of the second set of blast furnace tuyere, the adjusting bolt 11 on the connecting rod 9 is tightened, and the hook heads 8 on the connecting rod 9 are expanded outwards under the action of a lever, and abut against the inner holes of the second set of blast furnace tuyere, and then disassembled through the handrail 2, wherein the triangularly limited hook heads 8 avoid the phenomenon of uneven force after the hook heads 8 pull the two sets during disassembly, resulting in the phenomenon of decoupling, thereby reducing the difficulty of disassembly of the second set of tuyere.

[0014] The pull rod 1 is provided with a sliding hammer 5 and a thrust plate 4 in sequence, the sliding hammer 5 is slidably connected to the pull rod 1, two pull rings 6 are symmetrically provided on both sides of the sliding hammer 5, a traction rope 7 is connected to the pull ring 6, and the thrust plate 4 is tightly connected to the pull rod 1. The dismantling personnel pull the sliding hammer 5 with the traction rope 7 to hit the thrust plate 4, and use the impact force to pull out the two sets of tuyere, so the dismantling process is time-saving and labor-saving, and the labor intensity of the operators is low.

[0015] It also includes an electric hoist 12, and the pull rod 1 is also provided with a lifting lug 3, the lifting lug 3 is located on the right side of the thrust plate 4, and the lifting lug 3 is connected to the wire rope of the electric hoist 12. The utility model is ensured to maintain a horizontal state during disassembly to avoid tilting caused by manual support and increase disassembly resistance.

[0016] Example

[0017] After the blast furnace is shut down, the utility model is transported to the front of the second set of tuyere to be loaded and unloaded, and placed on the support rod 10 in front of the large set of tuyere, and then the electric hoist 12 above the tuyere is hooked on the lifting ear 3 of the pull rod 1 of the device, and the pull rod 1 is lifted so that the horizontal position of the pull rod 1 is on the same horizontal plane as the center position of the second set of tuyere. After the three hook heads 8 are inserted into the inner holes of the second set of tuyere of the blast furnace, the adjusting bolts 11 on the connecting rod 9 are tightened. The hook heads 8 on the connecting rod 9 are expanded outwards under the action of the lever and abut against the inner holes of the second set of tuyere of the blast furnace. The dismantling personnel use the traction rope 7 to pull the sliding hammer 5 to hit the stop plate, and use the impact force to pull out the second set of tuyere. The dismantling process saves time and effort, and the labor intensity of the operators is low.

[0018] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A second set of disassembly device for blast furnace tuyere, characterized in that: The invention comprises a pull rod (1), wherein the head of the pull rod (1) is provided with three connecting rods (9) in a claw-shaped distribution, the connecting rod (9) and the pull rod (1) are connected via a support rod (10), the support rod (10) and the connecting rod (9) are hinged, the head of the connecting rod (9) is provided with a hook head (8), the hook head (8) is located in the second set of air outlets, the side wall of the other end of the connecting rod (9) is installed with an adjusting bolt (11), the adjusting bolt (11) passes through the connecting rod (9) and is locked on the pull rod (1), and a handrail (2) is installed at the end of the pull rod (1).

2. A blast furnace tuyere second set disassembly device according to claim 1, characterized in that: The pull rod (1) is provided with a sliding hammer (5) and a thrust plate (4) in sequence. The sliding hammer (5) is slidably connected to the pull rod (1). Two pull rings (6) are symmetrically provided on both sides of the sliding hammer (5). A traction rope (7) is connected to the pull ring (6). The thrust plate (4) is firmly connected to the pull rod (1).

3. A blast furnace tuyere second set disassembly device according to claim 2, characterized in that: It also includes an electric hoist (12), and the pull rod (1) is also provided with a lifting eye (3), the lifting eye (3) is located on the right side of the thrust plate (4), and the lifting eye (3) is connected to the electric hoist (12).

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