Combined taper oxygen lance

Abstract

This utility model relates to the field of tapered oxygen lance technology, specifically a combined tapered oxygen lance, including a main mounting base and a first positioning base. A second positioning base is fixedly connected to the other end of the main mounting base, and a gas supply ring is fixedly connected to one end of the first positioning base. A combined assembly is movably connected inside the main mounting base, the first positioning base, and the second positioning base, and an oxygen lance assembly is disposed inside the combined assembly. This utility model, through the arrangement of the main mounting base, the first positioning base, the second positioning base, the gas supply ring, the upper sliding frame, the lower sliding frame, the positioning bracket, the tapered oxygen lance body, the positioning rubber ring, the positioning cover, the inlet valve seat, the return valve seat, and the sealing gasket, enables the equipment to perform continuous operation of switching between tapered oxygen lance configurations. In actual use, the operator first connects the gas supply pipe to the inlet valve seat at one end of the gas supply ring and connects the return gas pipe to the return valve seat on the side of the gas supply ring.

Description

Technical Field

[0001] This utility model relates to the field of tapered oxygen lance technology, specifically a combined tapered oxygen lance. Background Technology

[0002] An oxygen lance is a tubular device that blows high-pressure, high-purity oxygen at supersonic speeds into the molten metal pool above a converter. It is also called a spray gun and is an important piece of equipment in oxygen top-blown steelmaking. It is one of the main process equipment in oxygen converter steelmaking, and its performance characteristics directly affect the smelting effect and blowing time, thus affecting the quality and yield of steel.

[0003] For example, patent document CN 219951101 U discloses a novel combined tapered oxygen lance, relating to the field of oxygen lance technology. It includes an oxygen lance body, an outer connecting pipe, an upper connecting pipe, a nozzle, and a tapered tube. The outer connecting pipe is located at the top of the oxygen lance body, and the upper connecting pipe is located at the top of the outer connecting pipe. The nozzle is fixedly installed on the side of the outer connecting pipe. This invention, after the oxygen lance has finished operating, allows for manual pushing of the push cap, causing the push cap to move the moving block and cleaning block up and down. The cleaning block, in conjunction with a scraper, scrapes away ash from the inner wall, achieving convenient cleaning. During the cleaning process, the inclined plate and scraper pad work together to increase frictional resistance, facilitating easy cleaning and improving the cleanliness of the device. This solves the problem of residue easily remaining on the inner wall of the combined tapered oxygen lance, which accumulates over time and affects the ease of use of the new combined tapered oxygen lance. It enhances the cleaning function of the device and makes it more convenient to use.

[0004] However, when this structure is used in actual taper oxygen lance applications, due to its own structural limitations, it cannot perform rapid switching and maintenance operations for the taper oxygen lance. When the taper oxygen lance is disassembled or assembled, it is often necessary to stop the equipment operation, which affects the normal production operation of the equipment. At the same time, the equipment cannot guarantee rapid disassembly and maintenance operations for the taper oxygen lance, and cannot meet the daily use needs. Therefore, it is urgent to design a combined taper oxygen lance to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a combined tapered oxygen lance to solve the problems mentioned in the background art. Due to the limitations of its own structure, the existing tapered oxygen lance cannot perform quick switching and maintenance operations when used in actual use. When the tapered oxygen lance is disassembled or assembled, it is often necessary to stop the equipment operation, which affects the normal production operation of the equipment. At the same time, the equipment cannot guarantee quick disassembly and maintenance operations of the tapered oxygen lance, and cannot meet the daily use needs.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a combined tapered oxygen lance, comprising a main mounting base, a first positioning seat fixedly connected to one end of the main mounting base, a second positioning seat fixedly connected to the other end of the main mounting base, an air supply ring fixedly connected to one end of the first positioning seat, and a combined assembly movably connected inside the main mounting base, the first positioning seat, and the second positioning seat, wherein an oxygen lance assembly is disposed inside the combined assembly; The assembly includes an upper sliding frame, which is movably connected inside the main mounting base, the first positioning base, and the second positioning base, and a lower sliding frame is fixedly connected to the bottom end of the upper sliding frame; The oxygen lance assembly includes a positioning bracket, and the positioning bracket is provided at the center of the inner wall of the upper sliding frame and the lower sliding frame.

[0007] Preferably, one end of the positioning bracket is fixedly connected to the tapered oxygen gun body, and the other end of the positioning bracket is fixedly connected to the gas inlet pipe.

[0008] Preferably, one end of the tapered oxygen lance body is fixedly connected to an air outlet pipe, and the sides of the positioning bracket, the tapered oxygen lance body, and the air outlet pipe are provided with fitting rubber sleeves.

[0009] Preferably, the upper sliding frame and the lower sliding frame are provided with mounting grooves inside, and a positioning rubber ring is provided between the upper sliding frame and the lower sliding frame.

[0010] Preferably, positioning covers are fixedly connected to the upper and lower ends of the upper and lower sliding frames.

[0011] Preferably, an intake valve seat is fixedly connected to one end of the air supply ring, and a return valve seat is fixedly connected to the side of the air supply ring.

[0012] Preferably, sealing gaskets are provided at the upper and lower ends of the main mounting base, the first positioning base, and the second positioning base.

[0013] Compared with the prior art, the beneficial effects of this utility model are: This modular tapered oxygen lance, through its main mounting base, first positioning base, second positioning base, gas supply ring, upper sliding frame, lower sliding frame, positioning bracket, tapered oxygen lance body, positioning rubber ring, positioning cover, inlet valve seat, return valve seat, and sealing gasket, allows for continuous operation and switching between different tapered oxygen lance configurations. In actual use, the operator first connects the gas supply pipe to the inlet valve seat at one end of the gas supply ring and the return gas pipe to the return valve seat on the side of the gas supply ring. Then, the gas supply ring controls the gas flow to the positioning bracket and the inside of the tapered oxygen lance body. In terms of operation, after a set of positioning brackets and the conical oxygen lance body have been used for a period of time, the upper and lower sliding frames can be slid upwards to switch between them. The positioning covers at the upper and lower ends of the upper and lower sliding frames can be fixedly positioned with the sealing gaskets at the upper and lower ends of the main mounting base. The positioning rubber ring between the upper and lower sliding frames provides damping and limiting operation. The upper and lower sliding frames allow for quick switching between the two sets of positioning brackets and the conical oxygen lance body, ensuring continuous operation of the equipment and demonstrating the practicality of the equipment design.

[0014] This modular tapered oxygen lance, through its main mounting base, first positioning base, second positioning base, gas supply ring, upper sliding frame, lower sliding frame, positioning bracket, tapered oxygen lance body, gas inlet pipe, gas outlet pipe, fitting rubber sleeve, and mounting groove, further improves the overall performance of the equipment. During daily use, operators can place the positioning bracket into the mounting groove at the center of the upper or lower sliding frame. At this time, the positioning bracket and the gas inlet and outlet pipes at both ends of the tapered oxygen lance body can be positioned within the first and second positioning bases, respectively. The fitting rubber sleeves on the sides of the positioning bracket, gas inlet pipe, and gas outlet pipe can also be fitted and secured within the mounting groove, ensuring stability during subsequent gas supply. This facilitates quick and easy disassembly, replacement, maintenance, and use of the modular tapered oxygen lance, demonstrating the comprehensiveness of the equipment design. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the structure of this utility model; Figure 2 This is an overall schematic diagram of the upper and lower sliding frame structures of this utility model; Figure 3 This is a schematic diagram of the overall structure of the positioning card holder of this utility model; Figure 4 This utility model Figure 1 Enlarged schematic diagram of the structure at point A; Figure 5 This utility model Figure 1 Enlarged schematic diagram of the structure at point B.

[0016] In the diagram: 1. Main mounting base; 2. First positioning base; 3. Second positioning base; 4. Gas supply ring; 5. Upper sliding frame; 6. Lower sliding frame; 7. Positioning bracket; 8. Tapered oxygen lance body; 9. Gas inlet pipe; 10. Gas outlet pipe; 11. Fitting rubber sleeve; 12. Mounting groove; 13. Positioning rubber ring; 14. Positioning cover; 15. Inlet valve seat; 16. Return valve seat; 17. Sealing gasket. Detailed Implementation

[0017] 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.

[0018] Please see Figure 1-5 One embodiment provided by this utility model: A combined tapered oxygen lance includes a main mounting base 1, a first positioning seat 2 fixedly connected to one end of the main mounting base 1, a second positioning seat 3 fixedly connected to the other end of the main mounting base 1, an air supply ring 4 fixedly connected to one end of the first positioning seat 2, a combined assembly movably connected inside the main mounting base 1, the first positioning seat 2, and the second positioning seat 3, an oxygen lance assembly being disposed inside the combined assembly, positioning covers 14 fixedly connected to the upper and lower ends of the upper sliding frame 5 and the lower sliding frame 6, an air inlet valve seat 15 fixedly connected to one end of the air supply ring 4, a return air valve seat 16 fixedly connected to the side of the air supply ring 4, sealing gaskets 17 provided at the upper and lower ends of the main mounting base 1, the first positioning seat 2, and the second positioning seat 3, positioning card 7 and the air inlet pipe 9 and air outlet pipe 10 at both ends of the tapered oxygen lance body 8 can be positioned inside the first positioning seat 2 and the second positioning seat 3 respectively, and the fitting sleeves 11 on the sides of the positioning card 7, the air inlet pipe 9, and the air outlet pipe 10 can also be fitted, positioned, and tightened inside the mounting groove 12.

[0019] The assembly includes an upper sliding frame 5, with the upper sliding frame 5 movably connected internally to the main mounting base 1, the first positioning base 2, and the second positioning base 3. A lower sliding frame 6 is fixedly connected to the bottom end of the upper sliding frame 5. The oxygen lance assembly includes a positioning bracket 7, with the positioning bracket 7 centrally located on the inner wall of the upper sliding frame 5 and the lower sliding frame 6. One end of the positioning bracket 7 is fixedly connected to the tapered oxygen lance body 8, and the other end is fixedly connected to an air inlet pipe 9. One end of the tapered oxygen lance body 8 is fixedly connected to an air outlet pipe 10. The positioning bracket 7 and the tapered oxygen lance body... The sides of the 8 and the air outlet pipe 10 are provided with fitting rubber sleeves 11. The upper sliding frame 5 and the lower sliding frame 6 are provided with mounting grooves 12. The upper sliding frame 5 and the lower sliding frame 6 are provided with positioning rubber rings 13. After a set of positioning card seats 7 and the tapered oxygen gun body 8 have been used for a period of time, the upper and lower sets of upper sliding frames 5 and lower sliding frames 6 can be slid upwards and switched. The positioning covers 14 at the upper and lower ends of the upper and lower sliding frames 5 and the lower sliding frames 6 can be fixedly positioned with the sealing rubber gaskets 17 at the upper and lower ends of the main mounting base 1.

[0020] Working principle: During use, the operator first connects the gas supply pipe to the inlet valve seat 15 at one end of the gas supply ring 4, and connects the return gas pipe to the return gas valve seat 16 on the side of the gas supply ring 4. Then, the gas supply to the positioning bracket 7 and the conical oxygen lance body 8 can be controlled through the gas supply ring 4. After a set of positioning brackets 7 and the conical oxygen lance body 8 has been used for a period of time, the upper and lower sliding frames 5 and 6 can be slid upwards. The positioning covers 14 at both ends of the upper and lower sliding frames 5 and 6 can be positioned relative to the sealing gaskets 17 at both ends of the main mounting base 1. The positioning rubber ring 13 between the upper and lower sliding frames 5 and 6 provides damping and limiting operation. The lower sliding frame 6 allows for quick switching between the two sets of positioning brackets 7 and the conical oxygen lance body 8, ensuring continuous operation of the equipment. During daily use, the operator can place the positioning bracket 7 into the mounting groove 12 at the center of the upper sliding frame 5 or the lower sliding frame 6. At this time, the air inlet pipe 9 and air outlet pipe 10 at both ends of the positioning bracket 7 and the conical oxygen lance body 8 can be positioned inside the first positioning seat 2 and the second positioning seat 3, respectively. The adhesive sleeves 11 on the sides of the positioning bracket 7, air inlet pipe 9, and air outlet pipe 10 can also be fitted, positioned, and tightened inside the mounting groove 12 to ensure stability during subsequent gas delivery and facilitate quick and easy replacement, disassembly, and maintenance of the conical oxygen lance. The above is the complete working principle of this utility model.

[0021] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A combined tapered oxygen lance, comprising a main mounting base (1), characterized in that: One end of the main mounting base (1) is fixedly connected to a first positioning base (2), and the other end of the main mounting base (1) is fixedly connected to a second positioning base (3). One end of the first positioning base (2) is fixedly connected to an air supply ring (4). The main mounting base (1), the first positioning base (2), and the second positioning base (3) are movably connected to a combined assembly, and an oxygen gun assembly is provided inside the combined assembly. The assembly includes an upper sliding frame (5), which is movably connected inside the main mounting base (1), the first positioning base (2), and the second positioning base (3), and a lower sliding frame (6) is fixedly connected to the bottom end of the upper sliding frame (5). The oxygen lance assembly includes a positioning bracket (7), and the positioning bracket (7) is provided at the center of the inner wall of the upper sliding frame (5) and the lower sliding frame (6).

2. The combined tapered oxygen lance according to claim 1, characterized in that: One end of the positioning bracket (7) is fixedly connected to the tapered oxygen gun body (8), and the other end of the positioning bracket (7) is fixedly connected to the gas inlet pipe (9).

3. A combined tapered oxygen lance according to claim 2, characterized in that: One end of the tapered oxygen lance body (8) is fixedly connected to an air outlet pipe (10), and the sides of the positioning bracket (7), the tapered oxygen lance body (8) and the air outlet pipe (10) are provided with fitting rubber sleeves (11).

4. The combined tapered oxygen lance according to claim 1, characterized in that: The upper sliding frame (5) and the lower sliding frame (6) are provided with mounting grooves (12), and a positioning rubber ring (13) is provided between the upper sliding frame (5) and the lower sliding frame (6).

5. A combined tapered oxygen lance according to claim 1, characterized in that: Positioning covers (14) are fixedly connected to the upper and lower ends of the upper sliding frame (5) and the lower sliding frame (6).

6. A combined tapered oxygen lance according to claim 1, characterized in that: One end of the gas supply ring (4) is fixedly connected to an air inlet valve seat (15), and the side of the gas supply ring (4) is fixedly connected to a return valve seat (16).

7. A combined tapered oxygen lance according to claim 1, characterized in that: Sealing gaskets (17) are provided at the upper and lower ends of the main mounting base (1), the first positioning base (2), and the second positioning base (3).

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