Converter air supply pipeline leak point processing structure

Abstract

The utility model discloses a converter air supply pipeline leak point processing structure relates to metallurgical converter technical field, including two air supply pipelines, corrugated compensator, and there is pipeline leak point at the junction of air supply pipeline and corrugated compensator, the outside of converter air supply pipeline is equipped with the cylindrical airtight cover, and the inside of cylindrical airtight cover is closed, cylindrical airtight cover includes first airtight cover and second airtight cover, and the outer wall of second airtight cover is equipped with cover body breathing hole, and the inside of cover body breathing hole is provided with the plugging bolt, the utility model discloses through design two semicircular cylindrical airtight cover, and one airtight cover needs to be attached with a breathing hole, is used for the temporary partial pressure effect when airtight cover is pasted pipeline welding, and leak point processing structure can carry out construction in the air supply process of air supply pipeline, after the structure is completed, and the closed cavity is formed between pipeline airtight cover and whole air supply pipeline, thereby solve the problem that needs non - scheduled blow - out treatment when converter air supply pipeline appears leak point.

Description

Technical Field

[0001] This utility model relates to the field of metallurgical converter technology, and more specifically to a structure for treating leaks in converter air supply pipes. Background Technology

[0002] A PS converter is a metallurgical furnace used to smelt matte into crude copper. During the smelting process, sufficient oxygen-enriched air needs to be blown in through the tuyeres to complete the melt reactions during the slag-forming and copper-forming stages. Due to the characteristics of converter exchange or furnace exchange operations, the oxygen-enriched air supply ducts need to be in a 24-hour supply state. Because the supply ducts operate under pressure with a large air volume (40,000-50,000 m³ / h) for extended periods... 3 Sometimes, cracks and leaks occur at the corrugated compensator connections between pipes, affecting the normal air supply to the converter and its production.

[0003] To address the aforementioned issues, due to the sudden nature of pipeline leaks, the typical approach is to shut down the converter unplanned for 1-2 days, and then repair the leak after the air duct is shut down. However, the converter shutdown significantly impacts planned output, increasing the cost per ton of copper processed. Furthermore, the sudden nature of the malfunction means that repairing leaks at night is possible, further complicating the process and posing certain safety hazards. Utility Model Content

[0004] The purpose of this utility model is to solve the above-mentioned technical problems by providing a structure for treating leaks in converter air supply pipes. By designing a specific sealed cover structure, unplanned shutdowns are avoided when repairing leaks in converter air supply pipes, thereby shortening the construction time.

[0005] To achieve the above objectives, this utility model specifically adopts the following technical solution: a converter air supply pipe leakage treatment structure, comprising two air supply pipes, with a corrugated compensator fixedly connected between the two air supply pipes, and a pipe leakage point at the connection between the air supply pipe and the corrugated compensator; a cylindrical sealing cover is fitted on the outside of the converter air supply pipe, and the pipe leakage point is located inside the cylindrical sealing cover, the inside of the cylindrical sealing cover is sealed; the cylindrical sealing cover includes a first sealing cover and a second sealing cover, the first sealing cover and the second sealing cover are mirror-symmetrically distributed, the outer wall of the second sealing cover has a cover body breathing hole, and a sealing bolt is installed inside the cover body breathing hole.

[0006] To facilitate the fixed connection between the two ends of the sealed cover and the outer wall of the air supply duct, as a preferred embodiment of the converter air supply duct leakage treatment structure of this utility model, the first sealed cover has a first sealing ring fixed at both the left and right ends, and the two first sealing rings are respectively fixedly connected to the lower side of the outer wall of the two air supply ducts; the second sealed cover has a second sealing ring fixed at both the left and right ends, and the two second sealing rings are respectively fixedly connected to the upper side of the outer wall of the two air supply ducts.

[0007] To facilitate the fixed connection of the two sealed covers on opposite sides, as a preferred embodiment of the converter air supply duct leakage treatment structure of this utility model, the first sealed cover and the second sealed cover are both semi-circular cylindrical in shape, and the outer diameters of the first sealed cover and the second sealed cover are the same.

[0008] To facilitate the final sealing of the ventilation holes of the sealed enclosure, as a preferred embodiment of the present invention for handling leaks in the converter air supply duct, the inner wall of the ventilation hole of the enclosure is threadedly connected to the sealing bolt.

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

[0010] 1. By designing two semi-circular cylindrical sealed covers, one of which is equipped with a vent for temporary pressure distribution when the sealed cover is welded to the pipe; the leak treatment structure can be constructed during the air supply process of the air supply pipe. After the structure is completed, a sealed cavity is formed between the pipe sealed cover and the overall air supply pipe, thereby solving the problem of unplanned shutdown when leaks occur in the converter air supply pipe.

[0011] 2. The leakage handling structure of this utility model can be prefabricated as a spare part because the sealed cover can be made in advance. When air leakage occurs in the air supply duct, the construction preparation time is shorter and the efficiency of duct fault handling is significantly improved. Attached Figure Description

[0012] Figure 1 This is a cross-sectional structural schematic diagram of the present invention;

[0013] Figure 2 This is a schematic diagram of the split structure of the first and second sealing covers of this utility model.

[0014] Attached reference numerals: 1. Air supply duct; 2. Corrugated compensator; 3. Pipe leak point; 4. First sealing cover; 401. First sealing ring; 5. Second sealing cover; 501. Second sealing ring; 502. Vent hole of the cover; 6. Sealing bolt. Detailed Implementation

[0015] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. The illustrative embodiments and descriptions of the present invention are used to explain the present invention, but are not intended to limit the present invention.

[0016] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0017] Please see Figure 1-2 This utility model provides the following technical solution: a structure for treating leaks in a converter air supply pipe, including two air supply pipes 1, a corrugated compensator 2 fixedly connected between the two air supply pipes 1, and a pipe leak 3 at the connection between the air supply pipe 1 and the corrugated compensator 2; a cylindrical sealed cover is fitted on the outside of the converter air supply pipe, the pipe leak 3 is located inside the cylindrical sealed cover, and the inside of the cylindrical sealed cover is sealed; the cylindrical sealed cover includes a first sealed cover 4 and a second sealed cover 5, the first sealed cover 4 and the second sealed cover 5 are mirror-symmetrically distributed, the outer wall of the second sealed cover 5 is provided with a cover body breathing hole 502, and the inner wall of the cover body breathing hole 502 is threaded with a sealing bolt 6.

[0018] In this embodiment, two semi-circular cylindrical sealed covers are designed, one of which is equipped with a vent for temporary pressure distribution during the welding of the sealed cover to the pipeline. Both sealed covers are the same length and both are longer than the corrugated compensator 2. A sealed cavity is formed between the sealed cover and the overall air supply duct, enabling real-time handling of leaks in the air supply duct during air supply, thus preventing converter shutdowns due to leak repairs.

[0019] As a technical optimization of this utility model, the left and right ends of the first sealed cover 4 are each fixed with a first sealing ring 401, and the two first sealing rings 401 are respectively fixedly connected to the lower side of the outer wall of the two air supply ducts 1; the left and right ends of the second sealed cover 5 are each fixed with a second sealing ring 501, and the two second sealing rings 501 are respectively fixedly connected to the upper side of the outer wall of the two air supply ducts.

[0020] In this embodiment: the inner walls of the two first sealing rings 401 are attached to the outer wall of the air supply duct, so that the staff can easily connect the two ends of the first sealing cover 4 to the two air supply ducts 1 respectively; the operation is the same as above, and the two second sealing rings 501 can easily connect the two ends of the second sealing cover 5 to the two air supply ducts 1 respectively.

[0021] As a technical optimization of this utility model, the first sealing cover 4 and the second sealing cover 5 are both semi-circular cylindrical in shape, and the outer diameters of the first sealing cover 4 and the second sealing cover 5 are the same.

[0022] In this embodiment: Since the outer diameters of the first sealing cover 4 and the second sealing cover 5 are the same and symmetrically distributed, after the positions of the two sealing covers are fixed, the two upper sides and the two lower sides are respectively attached, which makes it convenient for workers to weld the gap between the two sealing covers, thereby achieving a sealing effect.

[0023] The working principle and usage process of this utility model are as follows: When dealing with leaks, first attach and seal the left and right sealing rings of the semi-circular cylindrical sealing cover without vents to the two air supply pipes respectively. After welding, weld the semi-circular cylindrical sealing cover with vents to the upper side of the two air supply pipes in the same way. Then weld the gap between the two sealing covers. After welding, perform a soap water bubble test on the weld. After the weld is tight and there are no leaks, tighten and seal the vents with matching bolts to complete the air leakage treatment of the pipes.

[0024] The technical solutions provided by the embodiments of this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the embodiments of this utility model. The description of the above embodiments is only for helping to understand the principles of the embodiments of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the embodiments of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A structure for treating leaks in a converter air supply duct, comprising two air supply ducts (1), a corrugated compensator (2) fixedly connected between the two air supply ducts (1), and a duct leak (3) at the connection between the air supply duct (1) and the corrugated compensator (2), characterized in that: The converter air supply duct is fitted with a cylindrical sealed cover on the outside. The duct leakage point (3) is located inside the cylindrical sealed cover. The inside of the cylindrical sealed cover is sealed. The cylindrical sealed cover includes a first sealed cover (4) and a second sealed cover (5). The first sealed cover (4) and the second sealed cover (5) are distributed in a mirror symmetrical manner. The outer wall of the second sealed cover (5) is provided with a vent hole (502). A sealing bolt (6) is provided inside the vent hole (502).

2. The structure for treating leaks in a converter air supply duct according to claim 1, characterized in that: The first sealed cover (4) has a first sealing ring (401) fixed at both ends of the left and right sides, and the two first sealing rings (401) are respectively fixedly connected to the lower side of the outer wall of the two air supply ducts; the second sealed cover (5) has a second sealing ring (501) fixed at both ends of the left and right sides, and the two second sealing rings (501) are respectively fixedly connected to the upper side of the outer wall of the two air supply ducts.

3. The structure for treating leaks in a converter air supply duct according to claim 1, characterized in that: The first sealed cover (4) and the second sealed cover (5) are both semi-circular cylindrical in shape, and the outer diameters of the first sealed cover (4) and the second sealed cover (5) are the same.

4. The structure for treating leaks in a converter air supply duct according to claim 1, characterized in that: The inner wall of the breathing hole (502) of the cover is threadedly connected to the sealing bolt (6).

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