Oxygen lance structure for oxygen blowing of sliding plate

Abstract

The utility model belongs to the technical field of machining, and particularly discloses an oxygen lance structure for oxygen blowing of a sliding plate, which comprises an oxygen lance body, one end of the oxygen lance body is connected with an oxygen pipe through a locking nut, and the locking nut is connected with the oxygen lance body through threads. The device not only prevents oxygen flow from scouring the side wall of a sliding plate hole, forming a reaming hole and the like due to the fact that an oxygen pipe is not parallel to a flow channel in the sliding plate oxygen burning operation process, but also is good in structural sealing performance, prevents potential safety hazards caused by energy loss and oxygen leakage, improves the operation precision, reduces the labor intensity of workers, and improves the working efficiency. And the operation safety coefficient in a high-temperature environment is improved, and the device has the advantage of convenience in field operation.

Description

Technical Field

[0001] The utility model belongs to the technical field of machining, and particularly relates to an oxygen lance structure for oxygen blowing of a slide plate. Background Art

[0002] Oxygen burning of the slide plate is an essential step in the steel production process. After the ladle is placed in position, the hydraulic cylinder needs to be hung and the bottom argon blowing pipeline needs to be connected. After the overhead crane leaves the ladle, the sliding nozzle is opened to the fully open position, and the residual steel slag in the nozzle is cleaned up using an oxygen burning pipe. However, improper oxygen burning operations can also cause serious oxygen burning erosion to the slide plate. Improper oxygen burning operations include blowing oxygen when the slide plate is not fully aligned, resulting in oxygen directly impacting the working surface of the slide plate; the oxygen pipe is not parallel to the runner, causing the oxygen flow to scour the side wall of the slide plate hole, forming an enlarged hole, etc.; poor sealing between the oxygen pipe and the oxygen lance causes oxygen leakage. The leakage may cause poisoning and asphyxiation of the operator, and oxygen backfire may cause burns. Therefore, during the preparation and use of the slide plate, it is necessary to operate the oxygen burning reasonably to avoid damage to the slide plate. Summary of the Utility Model

[0003] The purpose of the utility model is to provide an oxygen lance structure for oxygen blowing of a slide plate to solve problems such as oxygen leakage caused by poor sealing between the oxygen pipe and the oxygen lance, and burns that may be caused by oxygen backfire.

[0004] To solve the above problems, the technical solution adopted by the utility model is as follows:

[0005] An oxygen lance structure for oxygen blowing of a slide plate includes an oxygen lance body. One end of the oxygen lance body is connected to an oxygen pipe through a locking nut, and the locking nut is threadedly connected to the oxygen lance body.

[0006] Preferably, a tapered sealing ring is provided on the oxygen pipe, and the tapered sealing ring is located inside the locking nut.

[0007] Preferably, a protective cover is provided on the oxygen lance body. The protective cover is of a semi-circular structure, and the opening of the protective cover faces the other end connected to the oxygen pipe.

[0008] Preferably, two handles are evenly arranged on both sides of the locking nut.

[0009] The beneficial effects of the utility model are as follows:

[0010] This device not only prevents the oxygen pipe from being non-parallel to the runner during the oxygen burning operation of the slide plate, resulting in the oxygen flow scouring the side wall of the slide plate hole and forming an enlarged hole, etc., but also has good structural sealing, preventing energy loss and potential safety hazards caused by oxygen leakage, improving the operation accuracy, reducing the labor intensity of workers, and increasing the operation safety factor in a high-temperature environment. It has the advantage of convenient on-site operation. Description of the Drawings

[0011] Figure 1 is a structural schematic diagram of the present utility model;

[0012] Figure 2 is a structural schematic diagram of the conical sealing ring;

[0013] Figure 3 is a structural schematic diagram of the locking nut;

[0014] In the figure: 1. Oxygen lance body; 2. Protective cover; 3. Conical sealing ring; 4. Locking nut; 5. Oxygen pipe. Specific embodiments

[0015] The present utility model will be further described below in conjunction with specific embodiments:

[0016] As Figures 1-3 shown, an oxygen lance structure for oxygen blowing on a slide plate includes an oxygen lance body 1. One end of the oxygen lance body 1 is connected to an oxygen pipe 5 through a locking nut 4. The locking nut 4 is threadedly connected to the oxygen lance body 1. The locking nut 4 is screwed onto the oxygen lance body 1 using threads to tightly fasten the part of the oxygen pipe 5 inserted into the oxygen lance body 1, thereby firmly connecting the oxygen pipe 5 to the oxygen lance body 1. A conical sealing ring 3 is provided on the oxygen pipe 5. The conical sealing ring 3 is made of rubber. The conical sealing ring 3 is located inside the locking nut 4. After screwing the conical sealing ring 3 on the oxygen pipe 5 into the oxygen lance body 1, it plays a better sealing role, improving the sealing effect of the entire structure. At the same time, it can be replaced at any time, facilitating the operation. It uses the locking nut at the head of the oxygen lance to fix the oxygen pipe, ensuring that the oxygen pipe is inserted to the root of the oxygen lance and is not easily loosened. And the conical sealing ring in the locking nut is used to prevent oxygen leakage during the use of the oxygen lance. A protective cover 2 is provided on the oxygen lance body 1. The protective cover 2 has a semi-circular structure and is made of 45# steel. The opening of the protective cover 2 faces the other end connected to the oxygen pipe 5. The protective cover at the oxygen lance grip can prevent scalding injuries caused by splashing steel slag during the oxygen blowing operation on the slide plate. Two handles are evenly arranged on both sides of the locking nut 4, facilitating disassembly and installation.

Claims

1. An oxygen lance structure for oxygen blowing on a slide plate, comprising an oxygen lance body, characterized in that: One end of the oxygen lance body (1) is connected to the oxygen tube (5) via a locking nut (4), and the locking nut (4) is connected to the oxygen lance body (1) via threads.

2. The oxygen lance structure for oxygen blowing on a slide plate according to claim 1, characterized in that: The oxygen tube (5) is provided with a conical sealing ring (3), and the conical sealing ring (3) is located inside the locking nut (4).

3. The oxygen lance structure for oxygen blowing on a slide plate according to claim 1, characterized in that: A protective cover (2) is provided on the oxygen lance body (1); the protective cover (2) is a semicircular structure, and the opening of the protective cover (2) faces the other end connected to the oxygen pipe (5).

4. The oxygen lance structure for oxygen blowing on a slide plate according to claim 1, characterized in that: Two handles are evenly arranged on both sides of the locking nut (4).

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