Arc-shaped lacing wire device for blast furnace swing groove sliding nozzle

Abstract

The utility model relates to an arc-shaped lacing wire device for a blast furnace swing groove sliding nozzle, and belongs to the technical field of blast furnace stokehole swing grooves in the metallurgical industry. According to the technical scheme, the device comprises a blast furnace swing chute nozzle (1), a pull rod (3), adjusting nuts (4) and (8) and an arc-shaped lacing wire (6), the arc-shaped lacing wire (6) is a semicircle matched with the blast furnace swing chute nozzle (1), the arc-shaped lacing wire (6) is fixed to the blast furnace swing chute nozzle (1), the pull rod (3) is arranged on the arc-shaped lacing wire (6) in the radial direction, and the two ends of the pull rod (3) are in threaded connection with the adjusting nuts (4) and (8); a horizontal ruler (2) and a pointer (7) matched with the horizontal ruler (2) are arranged on the blast furnace swing chute nozzle (1); and a lifting lug (5) is fixed on the arc-shaped lacing wire (6). The utility model has the beneficial effects that 1) the cracking of the blast furnace swing groove sliding nozzle can be reduced or even avoided, the service life of the swing groove is prolonged, the repair cost is reduced, and 2) the iron flow is not dispersed any more, the safety of a transportation railway is ensured, and the smooth operation of the furnace condition is ensured.

Description

Technical Field

[0001] This utility model relates to an arc-shaped tie rod device for the swivel groove chute of a blast furnace, belonging to the technical field of blast furnace front swivel groove in the metallurgical industry. Background Technology

[0002] In the blast furnace ironmaking process, the swing chute is an essential piece of equipment. The swing chute spout serves to divert the molten iron to different locations within the ladles, ensuring continuous tapping. However, during blast furnace operation, the swing chute spout is constantly subjected to direct erosion from molten iron, melting damage, and thermal shock stress, leading to cracking and affecting its service life. Utility Model Content

[0003] The purpose of this invention is to provide an arc-shaped tie rod device for the blast furnace swing groove chute, which can prevent the swing groove chute from cracking, extend the service life of the swing groove, reduce repair costs, and solve the problems existing in the background art.

[0004] The technical solution of this utility model is:

[0005] A blast furnace swing groove chute arc-shaped tie rod device includes a blast furnace swing groove chute, a tie rod, an adjusting nut, and an arc-shaped tie rod. The arc-shaped tie rod is a semi-circle that matches the blast furnace swing groove chute. The arc-shaped tie rod is fixed on the blast furnace swing groove chute. A tie rod is provided in the radial direction of the arc-shaped tie rod, and an adjusting nut is threaded to both ends of the tie rod.

[0006] The blast furnace swing groove chute is equipped with a level and a pointer that works in conjunction with the level.

[0007] One end of the level ruler is fixed to the blast furnace swing groove chute, and the other end of the level ruler is provided with a scale that matches the pointer. The lower end of the pointer is rotatably connected to the blast furnace swing groove chute.

[0008] The curved tie rod is fixed with a lifting lug.

[0009] The beneficial effects of this utility model are:

[0010] 1) It can reduce or even eliminate cracking of the blast furnace swing groove chute, extend the service life of the swing groove, and reduce repair costs;

[0011] 2) The iron flow is no longer dispersed, ensuring the safety of the transport railway and the smooth operation of the furnace. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a schematic diagram showing the expansion of the oscillating nozzle after heating.

[0014] In the diagram: 1. Blast furnace swing groove chute; 2. Level ruler; 3. Tie rod; 4. Adjusting nut; 5. Lifting lug; 6. Arc-shaped tie rod; 7. Pointer. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and examples.

[0016] See attached document Figure 1 A blast furnace swing groove chute arc-shaped tie rod device includes a blast furnace swing groove chute 1, a tie rod 3, an adjusting nut 4 and an arc-shaped tie rod 6. The arc-shaped tie rod 6 is a semi-circle that matches the blast furnace swing groove chute 1. The arc-shaped tie rod 6 is fixed on the blast furnace swing groove chute 1. The radial direction of the arc-shaped tie rod 6 is provided with a tie rod 3, and both ends of the tie rod 3 are threaded with adjusting nuts 4.

[0017] In this embodiment, refer to the appendix Figure 1 A 40mm thick steel plate is cut into arc-shaped tie rods with an inner arc height of 200-300mm and an outer arc height of 800-1000mm. The width of the inner arc is 30-100mm wider than the swing chute. The arc-shaped tie rods are welded to both sides of the swing chute. This effectively forms a whole with the swing chute. By using tie rod 3 and adjusting nut 4, a prestress is applied to the refractory material to reduce the impact of thermal shock on the refractory material.

[0018] The unmarked end of the horizontal ruler 2 is welded to one end of the arc-shaped tie rod 6 and fixed to the blast furnace swing groove chute 1. The other end of the horizontal ruler 2 is provided with a scale that matches the pointer 7. The lower end of the pointer 7 is welded to the outer steel shell of the blast furnace swing groove chute 1.

[0019] When the oscillating nozzle 1 expands due to heat, the pointer 7 will indicate the position of the horizontal ruler 2. Figure 1 The state shown Figure 2 The state shown can be restored by adjusting the adjusting nut 4 to the side of the arc-shaped tie rod 6 to press the swing nozzle 1. Figure 1 The condition shown meets the requirements for extending service life.

Claims

1. A swing chute spout arching rebar device for a blast furnace, characterized by: It includes a blast furnace swing groove chute (1), a tie rod (3), an adjusting nut (4) and an arc-shaped tie rod (6). The arc-shaped tie rod (6) is a semi-circle that matches the blast furnace swing groove chute (1). The arc-shaped tie rod (6) is fixed on the blast furnace swing groove chute (1). The arc-shaped tie rod (6) has a tie rod (3) in its radial direction. Both ends of the tie rod (3) are threaded with adjusting nuts (4).

2. A swing chute spout arc shape reinforcing bar device for a blast furnace according to claim 1, characterized in that: The device is equipped with a level (2) and a pointer (7) that works in conjunction with the level (2).

3. A swing chute spout arc shape reinforcing bar device for a blast furnace according to claim 2, characterized in that: One end of the horizontal ruler (2) is welded to one end of the arc-shaped tie rod (6) and fixed on the blast furnace swing groove chute (1). The other end of the horizontal ruler (2) is provided with a scale that matches the pointer (7). The lower end of the pointer (7) is welded to the steel shell of the blast furnace swing groove chute (1).

4. The arc shaped tensioning device for swing chute spout of blast furnace according to claim 1, characterized in that: The arc-shaped tie rod (6) is fixed with a lifting lug (5).

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