Oxygen lance nozzle for stable loading in converter steelmaking

Abstract

The utility model discloses an oxygen lance nozzle for converter steelmaking stable loading, and particularly relates to the field of oxygen lance nozzles, the oxygen lance nozzle comprises a pipe body, a connecting pipe is arranged on one side of the pipe body, first antirust layers are fixedly arranged on the outer walls of the connecting pipe, the pipe body and the nozzle, and the first antirust layers are made of nickel base alloy materials. A first anti-rust layer is arranged on one side of the first anti-rust layer, a second anti-rust layer is sprayed on one side of the first anti-rust layer, the second anti-rust layer is made of a tungsten carbide coating material, a first anti-corrosion layer is arranged on one side of the first anti-rust layer, the first anti-corrosion layer is made of glass fiber reinforced plastic, and a second anti-corrosion layer is sprayed on the inner side of the first anti-corrosion layer. According to the utility model, the first anti-rust layer and the second anti-rust layer are arranged and are matched with each other for use, so that the abrasion of the nozzle caused by oxidation is effectively reduced, the service life of the nozzle is prolonged, the replacement frequency is reduced, meanwhile, the nozzle is prevented from cracking or other faults caused by corrosion, the operation safety is improved, and the practicability of the device is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of oxygen lance nozzles, and more specifically, to an oxygen lance nozzle for stable charging in converter steelmaking. Background Technology

[0002] An oxygen lance nozzle for stable charging in converter steelmaking is a steelmaking auxiliary device, mainly used to deliver oxygen into the converter to improve steelmaking efficiency and reduce energy consumption. This nozzle is typically designed with a special shape and material to ensure that the oxygen is fully mixed and covers the entire converter.

[0003] A search revealed an existing patent (publication number: CN 215440533 U) that discloses an oxygen lance nozzle for stable charging in converter steelmaking, comprising a lance barrel, an oxygen inlet pipe, an oxygen lance nozzle, and a control and adjustment device. A first flange group is fixed to both sides of the lance barrel, and a fourth flange group is fixed to both sides of the oxygen inlet pipe. An inclined groove is formed inside the oxygen lance nozzle, and a heat insulation layer is embedded and fixed to the surface of the oxygen lance nozzle. An air flow sensor is fixed inside the left side of the oxygen inlet branch pipe, and the left side of the oxygen inlet branch pipe passes through the upper right side of the heat insulation layer and is fixedly connected to the right side of the oxygen lance nozzle. Both the temperature sensor and the air flow sensor are electrically connected to the controller via wires. This oxygen lance nozzle for stable charging in converter steelmaking is equipped with a heat insulation layer, which insulates the surfaces of the oxygen lance nozzle and the oxygen inlet branch pipe, preventing the oxygen lance nozzle and the oxygen inlet branch pipe from entering the converter and causing excessively high temperatures inside the converter, which could easily damage the temperature sensor, the air flow sensor, and the nozzle.

[0004] The existing oxygen lance nozzles for stable charging in converter steelmaking will rust after long-term use, which will reduce the nozzle diameter, reduce the oxygen flow rate, and thus reduce the working efficiency of the oxygen lance. It will also damage the structure of the oxygen lance nozzle, increasing the risk of equipment failure and resulting in certain limitations in its use. At the same time, the patent documents cited above do not propose any solutions to the above problems.

[0005] Therefore, a new oxygen lance nozzle for stable charging in converter steelmaking is proposed to address the above problems. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides an oxygen lance nozzle for stable charging in converter steelmaking, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an oxygen lance nozzle for stable charging in converter steelmaking, comprising a tube body, a connecting pipe provided on one side of the tube body, a first anti-rust layer fixedly provided on the outer wall of the connecting pipe, the tube body and the nozzle, the first anti-rust layer being made of nickel-based alloy material, and a second anti-rust layer being sprayed on one side of the first anti-rust layer, the second anti-rust layer being made of tungsten carbide coating material.

[0008] Preferably, a first anti-corrosion layer is provided on one side of the first rust-proof layer, and the first anti-corrosion layer is made of glass fiber reinforced plastic.

[0009] Preferably, a second anti-corrosion layer is sprayed onto the inner side of the first anti-corrosion layer, and the second anti-corrosion layer is made of phosphate ceramic coating material.

[0010] Preferably, a connecting groove is provided inside one side of the tube body, a movable tube is slidably connected inside the connecting groove, and a fixed tube is fixedly provided on one side of the movable tube.

[0011] Preferably, an annular groove is provided on one side of the connecting pipe, and a limiting ring is fixedly provided on one side of the pipe body, wherein the limiting ring and the annular groove are rotatably connected.

[0012] Preferably, a locking block is fixedly provided on one side of the nozzle, and the locking block is engaged with one side of the connecting pipe.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] Compared with existing technologies, the oxygen lance nozzle for stable charging in converter steelmaking is equipped with a first rust-proof layer and a second rust-proof layer, which work together to effectively reduce nozzle wear caused by oxidation, thereby extending its service life, reducing replacement frequency, and preventing nozzle cracking or other malfunctions due to rust. This improves operational safety, enhances the practicality of the device, and broadens its application range. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the card block position structure of this utility model.

[0017] Figure 3 This is a schematic diagram of the connection groove position structure of this utility model.

[0018] Figure 4 This is a schematic diagram of the location and structure of the anti-rust layer of this utility model.

[0019] The attached diagram is labeled as follows: 1. Pipe body; 2. Connecting pipe; 3. Annular groove; 4. Limiting ring; 5. Nozzle; 6. Locking block; 7. Connecting groove; 8. Fixed pipe; 9. Movable pipe; 10. First anti-rust layer; 11. Second anti-rust layer; 12. First anti-corrosion layer; 13. Second anti-corrosion layer. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example 1

[0022] As attached Figures 1 to 4 The oxygen lance nozzle for stable charging in converter steelmaking shown includes a tube body 1, a connecting pipe 2 on one side of the tube body 1, and a first anti-rust layer 10 fixedly provided on the outer wall of the connecting pipe 2, the tube body 1 and the nozzle 5. The first anti-rust layer 10 is made of nickel-based alloy material, and a second anti-rust layer 11 is sprayed on one side of the first anti-rust layer 10. The second anti-rust layer 11 is made of tungsten carbide coating material.

[0023] Specifically, by setting a first anti-rust layer 10 and a second anti-rust layer 11, the wear of the nozzle 5 caused by oxidation is effectively reduced, the replacement frequency is reduced, and its service life is extended to a certain extent. At the same time, the nozzle 5 is prevented from cracking or other failures due to rust, thus improving operational safety.

[0024] Example 2

[0025] Based on Embodiment 1, the solution in Embodiment 1 will be further described in detail below with reference to the specific working method, such as... Figures 1 to 4 As shown below, see details:

[0026] In a preferred embodiment, a first anti-corrosion layer 12 is provided on one side of the first anti-rust layer 10, and the first anti-corrosion layer 12 is made of glass fiber reinforced plastic; furthermore, by providing a second anti-corrosion layer 13, which is made of phosphate ceramic coating material, its corrosion resistance is improved to a certain extent.

[0027] In a preferred embodiment, a second anti-corrosion layer 13 is sprayed onto the inner side of the first anti-corrosion layer 12, and the second anti-corrosion layer 13 is made of phosphate ceramic coating material; furthermore, by providing the first anti-corrosion layer 12, which is made of glass fiber, it has good stability and corrosion resistance.

[0028] In a preferred embodiment, a connecting groove 7 is provided inside one side of the tube body 1, and a movable tube 9 is slidably connected inside the connecting groove 7. A fixed tube 8 is fixedly provided on one side of the movable tube 9. Furthermore, by providing the movable tube 9, the fixed tube 8 on one side of the movable tube 9 can be moved to extend the fixed tube 8, which is convenient to adjust according to actual use needs, thereby enhancing the practicality of the device.

[0029] In a preferred embodiment, an annular groove 3 is provided on one side of the connecting pipe 2, and a limiting ring 4 is fixedly provided on one side of the pipe body 1. The limiting ring 4 and the annular groove 3 are rotatably connected. Furthermore, by providing the limiting ring 4 and threading its annular groove 3, it is easier to adjust the angle of the connecting pipe 2.

[0030] In a preferred embodiment, a locking block 6 is fixedly provided on one side of the nozzle 5, and the locking block 6 is engaged with one side of the connecting pipe 2; furthermore, by providing the locking block 6 and engaging with one side of the connecting pipe 2, the nozzle 5 can be disassembled and assembled, making the device more widely applicable.

[0031] The working process of this utility model is as follows:

[0032] In use, a limiting ring 4 is first provided on one side of the pipe body 1, and an annular groove 3 is provided on one side of the pipe body 1. The annular groove 3 is threadedly connected to the limiting ring 4, which facilitates the adjustment of the angle of the connecting pipe 2, making it easier to operate according to actual needs and expanding its application range. Secondly, a nozzle 5 is provided on one side of the connecting pipe 2, and a locking block 6 is provided on one side of the nozzle 5. The locking block 6 is engaged with one side of the connecting pipe 2, which allows the nozzle 5 to be disassembled and installed, facilitating replacement and maintenance of the nozzle 5, making the device more convenient to use. In addition, a movable tube 9 is slidably connected inside the connecting groove 7 on one side of the pipe body 1. By moving the fixed tube 8 on one side of the movable tube 9, the extension and fixation can be achieved. The tube 8 is designed for easy adjustment according to actual usage needs, enhancing the practicality of the device. Furthermore, the first anti-corrosion layer 12 and the second anti-corrosion layer 13, made of glass fiber and phosphate ceramic coating materials respectively, provide excellent stability and corrosion resistance, thus extending the device's practicality to some extent. Additionally, the first rust-proof layer 10 and the second rust-proof layer 11, made of nickel-based alloy and tungsten carbide coating materials, effectively reduce wear on the nozzle 5 caused by oxidation, extending its service life, reducing replacement frequency, and preventing the nozzle 5 from cracking or malfunctioning due to rust, improving operational safety. These features further enhance the device's practicality and broaden its application range.

[0033] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A converter steelmaking oxygen lance nozzle for stable charging, comprising a tube body (1), characterized in that; A connecting pipe (2) is provided on one side of the pipe body (1). A first anti-rust layer (10) is fixedly provided on the outer wall of the connecting pipe (2), the pipe body (1) and the nozzle (5). The first anti-rust layer (10) is made of nickel-based alloy material, and a second anti-rust layer (11) is sprayed on one side of the first anti-rust layer (10). The second anti-rust layer (11) is made of tungsten carbide coating material.

2. The oxygen lance nozzle for stable charging in converter steelmaking according to claim 1, characterized in that: A first anti-corrosion layer (12) is provided on one side of the first anti-rust layer (10), and the first anti-corrosion layer (12) is made of glass fiber reinforced plastic.

3. The oxygen lance nozzle for stable charging in converter steelmaking according to claim 2, characterized in that: The inner side of the first anti-corrosion layer (12) is coated with a second anti-corrosion layer (13), which is made of phosphate ceramic coating material.

4. The oxygen lance nozzle for stable charging in converter steelmaking according to claim 1, characterized in that: A connecting groove (7) is provided inside one side of the tube body (1), and a movable tube (9) is slidably connected inside the connecting groove (7), and a fixed tube (8) is fixedly provided on one side of the movable tube (9).

5. The oxygen lance nozzle for stable charging in converter steelmaking according to claim 1, characterized in that: The connecting pipe (2) has an annular groove (3) on one side, and a limiting ring (4) is fixedly provided on one side of the pipe body (1). The limiting ring (4) and the annular groove (3) are rotatably connected.

6. The oxygen lance nozzle for stable charging in converter steelmaking according to claim 1, characterized in that: A locking block (6) is fixedly provided on one side of the nozzle (5), and the locking block (6) is engaged with one side of the connecting pipe (2).

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