Converter tapping slag stopping mechanism capable of reducing slag inclusion

Abstract

The utility model relates to the field of steel smelting equipment, in particular to a converter tapping slag stopping mechanism capable of reducing slag inclusion, which comprises a mounting seat, the mounting seat is arranged on the outer side of a converter and sleeved on a tapping hole, a cavity is arranged in the mounting seat, a stopping block is slidably arranged in the cavity, and a first telescopic mechanism connected with the stopping block is vertically arranged outside the mounting seat. A through hole is formed in the check block, a sliding plug is arranged in the through hole in a sliding mode, a second telescopic mechanism is horizontally arranged on the outer side of the installation base, and the second telescopic mechanism is connected with a supporting shaft inserted into the tapping hole. According to the utility model, slag inclusion entering the tapping hole is reduced, and the cleanliness of molten steel discharged by the converter is improved.

Description

Technical Field

[0001] The utility model relates to the field of steel smelting equipment, in particular to a converter tapping slag blocking mechanism for reducing slag inclusions. Background Art

[0002] Cord steel is generally used in the production of rubber tires. As the internal skeleton of rubber tires, cord steel has high requirements in production. In terms of raw materials, the requirements for slag inclusion control are high. In the smelting of cord steel, slag inclusions should be reduced as much as possible. Slag inclusions are a large amount of slag produced by the converter during the blowing process. The slag contains iron oxide, phosphorus oxide, etc. The converter is required to reduce the slag into the ladle as much as possible when tapping steel, so a slag blocking mechanism is needed. However, the existing slag blocking mechanism will still allow a small amount of slag inclusions to enter the tapping port when tapping steel. Therefore, it is particularly necessary to develop a converter tapping slag blocking mechanism that reduces the slag inclusions from entering the tapping port. Summary of the invention

[0003] The utility model aims to provide a converter tapping slag blocking mechanism for reducing slag inclusions, which has the advantage of reducing the entry of slag inclusions into the tapping port.

[0004] The technical solutions adopted are as follows:

[0005] A slag-blocking mechanism for steel tapping in a converter for reducing slag inclusions comprises a mounting seat, the mounting seat being arranged on the outside of the converter and sleeved on the steel tapping port, a cavity being arranged in the mounting seat, a stopper being slidably arranged in the cavity, a first telescopic mechanism connected to the stopper being vertically arranged outside the mounting seat, the stopper being provided with a through hole, a sliding plug being slidably arranged in the through hole, a second telescopic mechanism being horizontally arranged outside the mounting seat, and the second telescopic mechanism being connected to a support shaft inserted into the steel tapping port.

[0006] Preferably, a retaining ring is provided on the outer side of the through hole.

[0007] Preferably, the length of the sliding plug is greater than the distance between the stopper and the inner wall of the converter.

[0008] Preferably, a tension spring is provided between the end surface of the sliding plug and the inner wall of the through hole.

[0009] Preferably, the first telescopic mechanism and the second telescopic mechanism are both hydraulic telescopic rods.

[0010] Compared with the prior art, the beneficial effects are:

[0011] Before steel is tapped, the utility model lowers a block to block the steel outlet, and utilizes a supporting shaft to push a sliding plug out of the block until the sliding plug is flush with the inner wall of the converter, and then the converter rotates, and the molten steel covers the steel outlet. In this process, since the sliding plug is flush with the inner wall of the converter, slag inclusions above the molten steel will not enter the steel outlet, thereby making the molten steel discharged from the converter cleaner. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a structural schematic diagram of a converter tapping slag retaining mechanism for reducing slag inclusions.

[0013] Figure 2 yes Figure 1 The structural diagram at A in the middle,

[0014] In the figure: 1. mounting seat, 2. steel outlet, 3. cavity, 4. stopper, 5. first telescopic mechanism, 6. through hole, 7. sliding plug, 8. second telescopic mechanism, 9. supporting shaft, 10. retaining ring, 11. tension spring, 12. converter. DETAILED DESCRIPTION

[0015] The present invention will be further described below in conjunction with specific embodiments. Figure 1 to Figure 2 As shown:

[0016] Embodiment 1: A slag-blocking mechanism for reducing slag inclusions in a converter steel tapping includes a mounting seat 1, the mounting seat 1 is arranged outside a converter 12 and sleeved on a steel tapping port 2, a cavity 3 is arranged inside the mounting seat 1, a stopper 4 is slidably arranged inside the cavity 3, the cavity 3 is connected to the steel tapping port 2, the stopper 4 slides inside the cavity 3 to close and open the steel tapping port 2, a first telescopic mechanism 5 connected to the stopper 4 is vertically arranged outside the mounting seat 1, the first telescopic mechanism 5 drives the stopper 4 to slide,

[0017] The stopper 4 is provided with a through hole 6, in which a sliding plug 7 is slidably arranged, and a second telescopic mechanism 8 is horizontally arranged outside the mounting seat 1, and the second telescopic mechanism 8 is connected to a support shaft 9 inserted into the steel outlet 2, and the second telescopic mechanism 8 controls the support shaft 9 to move in the steel outlet 2, thereby pushing the sliding plug 7 to move in the steel outlet 2.

[0018] Before steel is tapped, the stopper 4 is lowered to block the steel outlet 2, and the sliding plug 7 is pushed out of the stopper 4 by the support shaft 9 until the sliding plug 7 is flush with the inner wall of the converter 12, and then the converter 12 rotates, and the molten steel covers the steel outlet 2. In this process, since the sliding plug 7 is flush with the inner wall of the converter 12, the slag above the molten steel will not enter the steel outlet 2, and then the support shaft 9 is controlled to retract until the end face of the sliding plug 7 is flush with the stopper 4, and then the stopper 4 is controlled to move, and the support shaft 9 is pulled out of the steel outlet 2, and the molten steel flows out from the gap between the stopper 4 and the steel outlet 2;

[0019] Embodiment 2: A slag-blocking mechanism for reducing slag inclusions in a converter steel tapping includes a mounting seat 1, the mounting seat 1 is arranged outside a converter 12 and sleeved on a steel tapping port 2, a cavity 3 is arranged inside the mounting seat 1, a stopper 4 is slidably arranged inside the cavity 3, the cavity 3 is connected to the steel tapping port 2, the stopper 4 slides inside the cavity 3 to close and open the steel tapping port 2, a first telescopic mechanism 5 connected to the stopper 4 is vertically arranged outside the mounting seat 1, the first telescopic mechanism 5 drives the stopper 4 to slide,

[0020] The block 4 is provided with a through hole 6, in which a sliding plug 7 is slidably arranged, a second telescopic mechanism 8 is horizontally arranged on the outer side of the mounting seat 1, and the second telescopic mechanism 8 is connected to a support shaft 9 inserted into the steel outlet 2. The second telescopic mechanism 8 controls the support shaft 9 to move in the steel outlet 2, thereby pushing the sliding plug 7 to move in the steel outlet 2. A retaining ring 10 is arranged on the outer side of the through hole 6, and the retaining ring 10 limits the sliding plug 7. The length of the sliding plug 7 is greater than the distance between the block 4 and the inside of the converter 12. A tension spring 11 is arranged between the end face of the sliding plug 7 and the inner wall of the through hole 6. The tension spring 11 facilitates the resetting of the sliding plug 7. The first telescopic mechanism 5 and the second telescopic mechanism 8 are both hydraulic telescopic rods. The hydraulic telescopic rod is a prior art and will not be described in detail here.

[0021] The specific working process is as follows: before tapping, the stopper 4 is lowered to block the tapping port 2, and the sliding plug 7 is pushed out of the stopper 4 by using the support shaft 9 until the sliding plug 7 is flush with the inner wall of the converter 12, and then the converter 12 rotates, and the molten steel submerges the tapping port 2. In this process, since the sliding plug 7 is flush with the inner wall of the converter 12, the slag inclusions above the molten steel will not enter the tapping port 2, and then the support shaft 9 is controlled to retract. Under the action of the tension spring 11, the end face of the sliding plug 7 is flush with the stopper 4, and then the stopper 4 is controlled to move, and the support shaft 9 is pulled out from the tapping port 2, and the molten steel flows out from the gap between the stopper 4 and the tapping port 2 for tapping.

[0022] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A slag retaining mechanism for converter tapping for reducing slag inclusions, characterized in that: The invention comprises a mounting seat (1), the mounting seat (1) being arranged outside a converter (12) and sleeved on a steel outlet (2), a cavity (3) being arranged inside the mounting seat (1), a stopper (4) being slidably arranged inside the cavity (3), a first telescopic mechanism (5) being vertically arranged outside the mounting seat (1) and connected to the stopper (4), the stopper (4) being provided with a through hole (6), a sliding plug (7) being slidably arranged inside the through hole (6), a second telescopic mechanism (8) being horizontally arranged outside the mounting seat (1), and the second telescopic mechanism (8) being connected to a support shaft (9) inserted into the steel outlet (2).

2. A slag retaining mechanism for reducing slag inclusions in a converter tapping according to claim 1, characterized in that: A retaining ring (10) is arranged on the outer side of the through hole (6).

3. A slag retaining mechanism for reducing slag inclusions in a converter tapping according to claim 1, characterized in that: The length of the sliding plug (7) is greater than the distance between the stopper (4) and the inner wall of the converter (12).

4. A slag retaining mechanism for reducing slag inclusions in a converter tapping according to claim 1, characterized in that: A tension spring (11) is provided between the end surface of the sliding plug (7) and the inner wall of the through hole (6).

5. A slag retaining mechanism for reducing slag inclusions in a converter tapping according to claim 1, characterized in that: The first telescopic mechanism (5) and the second telescopic mechanism (8) are both hydraulic telescopic rods.

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