Metal mine shaft pipeline welding slag receiving device

Abstract

The utility model discloses a metal mine shaft pipeline welding slag receiving device, belongs to the technical field of mine welding, and solves the problems that an existing welding slag receiving device is poor in material receiving effect, inconvenient to use and prone to scalding operators and causing fire disasters. Two slag receiving chucks are both of a semicircular structure, one ends of the two slag receiving chucks are hinged, the other ends of the two slag receiving chucks are connected through a bolt, slideways are arranged in the two slag receiving chucks, the slideways are annularly arranged along the slag receiving chucks, inlet grooves are formed in the slideways, and a plurality of fixing grooves are formed in the slideways along the circle centers. The protective cover is made of flexible materials and is in a horn shape, a plurality of supporting frames are arranged on the protective cover along the circle center, sliding blocks are arranged at the lower ends of the supporting frames, the sliding blocks can enter the sliding ways through the inlet grooves, and the sliding blocks are arranged in the fixing grooves in a one-to-one correspondence mode. The material receiving device is stable in structure, can be stably fixed on a pipeline during fire operation, has a very high material receiving effect, effectively avoids fire disasters during fire operation of a shaft, and guarantees the life safety of personnel.

Description

Technical Field

[0001] This utility model belongs to the field of mining welding technology, specifically relating to a slag receiving device for welding pipelines in metal mine shafts. Background Technology

[0002] A shaft is a vertical or inclined engineering structure that is excavated from the surface to the ore body in underground mining or construction. During the construction and use of a mine, it needs to be used in conjunction with welded pipelines. A series of pipelines are set up to ensure normal mine production and miner safety, mainly used to transport gas, water and electricity in the mine.

[0003] Currently, some metal mining companies have various pipelines such as air supply pipelines, water supply pipelines, and cable conduits laid inside the underground shafts. When the pipelines inside the shaft are damaged and need repair, maintenance personnel have to perform hot work such as welding or cutting inside the shaft. The welding point temperature of electric welding can usually reach 1000-1500℃. During hot cutting or welding operations, a large amount of high-temperature welding slag is often generated. The temperature of this welding slag can reach about 700℃. Within 10-20 seconds after the welding point is removed, the welding slag can still maintain a temperature of about 400℃, which is much higher than that of general flammable materials. If welding slag, welding meat, sparks, etc. fall directly onto flammable materials inside the shaft during pipeline welding or cutting, it can easily cause a fire with unimaginable consequences. Most of the existing welding slag receiving devices for hot work operations have problems such as poor material receiving effect and inconvenience of use. Utility Model Content

[0004] This utility model provides a slag receiving device for welding pipelines in metal mines, which solves the problems of poor material receiving effect, inconvenience of use, easy burn to operators and fire caused by existing slag receiving devices.

[0005] The technical solution of this utility model is: a slag receiving device for welding pipelines in metal mines, including two slag receiving chucks and a protective cover. Both slag receiving chucks are semi-circular structures. One end of the two slag receiving chucks is hinged together by a hinge seat, and the other end of the two slag receiving chucks is fixedly connected by bolts. A slide is provided inside the slag receiving chuck, and the slide is arranged circumferentially along the slag receiving chuck. An inlet groove is provided on the slide, and multiple fixing grooves are provided along the circumference of the slide. The protective cover is made of flexible material and is trumpet-shaped. Multiple support frames are provided along the circumference of the protective cover, and sliders are provided at the lower end of the support frames. The sliders can enter the slide through the inlet groove, and each slider can be placed in a corresponding fixing groove.

[0006] As a further improvement of this utility model, two slag receiving chucks are connected to limit plates by screws. The limit plates are semi-circular ring structures and cover the slide rail. The limit plates can prevent welding slag from entering the slide rail.

[0007] As a further improvement of this utility model, a break is provided on one side of the protective cover, and the two sides of the break are connected by Velcro, so that the size of the protective cover can be adjusted according to the usage.

[0008] The beneficial effects of this utility model are as follows: By attaching the slag-receiving chuck to the well casing pipeline and using a protective cover, this utility model effectively catches slag and sparks splashed during hot work, preventing fires from occurring in the well casing. Furthermore, the utility model incorporates a sliding groove and a support frame, allowing the protective cover to be freely adjusted in opening and closing. The receiving radius of the umbrella frame can be changed according to the amount of welding slag and sparks generated on site, improving the ease of use of this utility model. This utility model has a stable structure, can be stably fixed to the pipeline during hot work, and has a high material receiving efficiency, effectively preventing fires in the well casing and ensuring personnel safety. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of this utility model;

[0010] Figure 2 This is a schematic diagram of the first slag receiving chuck structure of this utility model;

[0011] Figure 3 This is a side sectional view of the present invention;

[0012] Figure 4 This is a schematic diagram of the protective cover of this utility model.

[0013] In the diagram: 1-Slag receiving chuck; 2-Hinge seat; 3-Fixing seat; 4-Fixing groove; 5-Slide rail; 6-Inlet groove; 7-Limiting gasket; 8-Protective cover; 9-Support frame; 10-Slider. Detailed Implementation

[0014] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0015] like Figure 1-4 As shown, a slag receiving device for welding pipelines in metal mines is characterized by comprising two slag receiving chucks 1 and a protective cover 8. Both slag receiving chucks 1 are semi-circular structures, with one end of each chuck hinged together by a hinge seat 2, and the other end of each chuck fixedly connected by bolts. A slide 5 is provided inside the slag receiving chuck 1, and the slide 5 is arranged circumferentially along the slag receiving chuck 1. An inlet groove 6 is provided on the slide 5, and multiple fixing grooves 4 are provided along the circumference of the slide 5. The protective cover 8 is made of flexible material and is trumpet-shaped. Multiple support frames 9 are provided along the circumference of the protective cover 8, and sliders 10 are provided at the lower end of the support frames 9. The sliders 10 can enter the slide 5 through the inlet groove 6, and each slider 10 is placed in a corresponding fixed groove 4.

[0016] Two slag receiving chucks 1 are connected to limit plates 7 by screws. The limit plates 7 are semi-circular ring structures and cover part of the slide 5.

[0017] The protective cover 8 has a break on one side and Velcro on both sides of the break. The size of the protective cover 8 can be adjusted according to the usage.

[0018] When performing hot work such as welding or cutting of pipelines in the wellbore, first loosen the connecting bolts of the two fixed seats 3, so that the two slag receiving chucks 1 are in the open state, and clamp them 100mm below the hot work point of the pipeline. After the two slag receiving chucks 1 are engaged, their inner diameter is the same as the inner diameter of the pipeline. Then, fix the two fixed seats 3 with the bolts to clamp them on the pipeline and prevent them from falling. Then, align the base of the first support frame 9 of the protective cover 8 with the circular inlet groove 6 of the slag receiving chuck, so that it can smoothly enter the slide 5. In the same way, make all the remaining five support frames 9 enter the slide 5. Then slide the support frames 9 to the corresponding fixed grooves 4 (6 support frames correspond to 6 open inclined grooves), so that the support frames 9 are naturally tilted and placed in the fixed grooves 4. Fix them by installing the limiting shims 7. Finally, stick the Velcro at the connection of the umbrella frame 8. Then, the slag receiving work can be carried out. After the hot work is completed, remove the support frames 9 from the slide 5 and disassemble the slag receiving chuck 1 recovery device.

Claims

1. A slag receiving device for welding pipelines in metal mine shafts, characterized in that: It includes two slag receiving chucks (1) and a protective cover (8). The two slag receiving chucks (1) are both semi-circular structures. One end of the two slag receiving chucks (1) is hinged together by a hinge seat (2), and the other end of the two slag receiving chucks (1) is fixedly connected by bolts. The slag receiving chucks (1) are provided with a slide (5). The slide (5) is arranged circumferentially along the slag receiving chucks (1). The slide (5) is provided with an inlet groove (6). The slide (5) is provided with multiple fixing grooves (4) along the circumference. The protective cover (8) is made of flexible material and is trumpet-shaped. The protective cover (8) is provided with multiple support frames (9) along the circumference. The lower end of the support frame (9) is provided with a slider (10). The slider (10) can enter the slide (5) through the inlet groove (6). Each slider (10) is placed in the fixing groove (4) one by one.

2. The slag receiving device for welding pipelines in metal mines according to claim 1, characterized in that: The two slag receiving chucks (1) are connected to limit plates (7) by screws. The limit plates (7) are semi-circular ring structures and partially cover the slide (5).

3. A slag receiving device for welding pipelines in metal mines according to claim 1 or 2, characterized in that: The protective cover (8) has a break on one side, and the two sides of the break are connected by Velcro.

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