Airbag device for quickly blocking upper and lower corners of fully mechanized coal mining face

Abstract

An air bag device for rapidly blocking upper and lower corners of a fully mechanized coal mining face comprises a first air bag seal and a second air bag seal. The air bag seal I and the air bag seal II are anti-static flame-retardant air bags, are arranged between an end hydraulic support and a coal wall during use, and are used for isolating gas in a goaf behind a fully mechanized coal mining face and the hydraulic support; a telescopic beam is arranged at the side end of the top of the end hydraulic support, and a first air bag seal and a second air bag seal are hung and fixed below the telescopic beam. Inflation installation and forward moving can be rapidly completed by one person when the device is used underground, the problems that traditional plugging materials are difficult to transport, and time and labor are consumed are solved, and manpower and installation time are greatly saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of devices at the upper and lower corners of a fully mechanized coal mining face, and particularly relates to an airbag device for quickly plugging the upper and lower corners of a fully mechanized coal mining face. Background Art

[0002] At present, the main method for plugging the upper and lower corners of a fully mechanized coal mining face is to use sand or loess filled in bags to build a wall for plugging. During the normal production of the working face, plugging cannot be carried out, and only the method of hanging a temporary air curtain can be used for temporary plugging, which cannot effectively solve the serious problem of air leakage inside the goaf and is not conducive to the fire management in the goaf of the fully mechanized coal mining face.

[0003] Using the traditional plugging method, the workload is large. There is an equipment train placed in the transportation gateway of the fully mechanized coal mining face, and the vehicles cannot pass. It is necessary to transport sand or loess to the lower corner of the working face by manpower. At least 6 people need to spend a small shift to complete the plugging of one corner. When the hydraulic support at the production end of the working face is pushed forward, the built wall will collapse and fail, resulting in large losses of manpower and materials and poor practicability, seriously affecting the normal production of the working face. Summary of the Invention

[0004] In order to overcome the above problems existing in the prior art, the purpose of the utility model is to provide an airbag device for quickly plugging the upper and lower corners of a fully mechanized coal mining face. When used underground, the device can be quickly inflated, installed and moved forward by one person, solving the problems of difficult transportation of traditional plugging materials, time-consuming and labor-consuming, and greatly saving manpower and installation time.

[0005] In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

[0006] An airbag device for quickly plugging the upper and lower corners of a fully mechanized coal mining face includes an airbag seal one 1 and an airbag seal two 4;

[0007] The airbag seal one 1 and the airbag seal two 4 are antistatic and explosion-proof airbags, which are installed between the end hydraulic support and the coal wall during use to isolate the gas between the fully mechanized coal mining face and the goaf behind the hydraulic support;

[0008] A telescopic crossbeam 8 is arranged at the top side end of the end hydraulic support, and the airbag seal one 1 and the airbag seal two 4 are hung and fixed below the telescopic crossbeam 8.

[0009] The airbag seal one 1 is of a cuboid structure, and an inflation valve one 2 and an exhaust valve one 3 are arranged at a certain height from the ground along the longitudinal axis of the airbag seal one 1;

[0010] The airbag seal two 4 is of a cuboid structure, and an inflation valve two 5 and an exhaust valve two 6 are arranged at a certain height from the ground along the longitudinal axis of the airbag seal two 4;

[0011] A snap fastener, a strap or a zipper 7 is provided between the airbag seal one 1 and the airbag seal two 4.

[0012] The telescopic crossbeam 8 is a steel telescopic rod, which can be telescopically adjusted according to the distance between the end hydraulic support and the coal wall.

[0013] The airbag seal one 1 and the airbag seal two 4 are made of 0.9mm double-layer anti-static PVC mesh cloth with anti-static and flame-retardant properties.

[0014] Advantages of the present utility model:

[0015] 1. For the airbag device for quickly plugging the upper and lower corners of the fully-mechanized mining face, when used underground, it can be quickly inflated, installed and moved forward by one person, solving the problems of difficult transportation of traditional plugging materials, time-consuming and laborious work, and greatly saving manpower and installation time.

[0016] 2. The airbag device for quickly plugging the upper and lower corners of the fully-mechanized mining face can be repeatedly used underground for several times, saving a large amount of costs.

[0017] 3. The airbag device for quickly plugging the upper and lower corners of the fully-mechanized mining face can tightly plug the upper and lower corners of the fully-mechanized mining face during both the production suspension and production periods of the working face. It has a good plugging effect, a low air leakage rate, good airtightness of the airbag, greatly reducing the internal air leakage in the goaf and facilitating the mine fire prevention and control management. Description of the Drawings

[0018] Figure 1 It is a schematic structural diagram of the present utility model.

[0019] Figure 2 It is a schematic diagram of the use of the present utility model. Detailed Embodiment

[0020] The present utility model will be further described in detail below with reference to the drawings.

[0021] As Figure 1 、 Figure 2 shown, the embodiment of the present utility model discloses an airbag device for quickly plugging the upper and lower corners of the fully-mechanized mining face, including:

[0022] An airbag device for quickly plugging the upper and lower corners of the fully-mechanized mining face, including an airbag seal one 1 and an airbag seal two 4;

[0023] The airbag seal one 1 and the airbag seal two 4 are anti-static and flame-retardant airbags, which are installed between the end hydraulic support and the coal wall during use to isolate the gas between the fully-mechanized mining face and the goaf behind the hydraulic support;

[0024] A telescopic crossbeam 8 is provided at the top side end of the end hydraulic support, and the airbag seal one 1 and the airbag seal two 4 are hung and fixed below the telescopic crossbeam 8.

[0025] The airbag seal 1 has a cuboid structure, with a width of 1000 mm, a height of 3500 mm, and a thickness of 500 mm. An inflation valve 2 and an exhaust valve 3 are provided at a position 1.5 m above the ground along the longitudinal axis of the airbag seal 1.

[0026] The airbag seal 4 has a cuboid structure, with a width of 500 mm, a height of 3500 mm, and a thickness of 500 mm. An inflation valve 5 and an exhaust valve 6 are provided at a position 1.5 m above the ground along the longitudinal axis of the airbag seal 4.

[0027] Snap fasteners, straps or zippers 7 are provided on the airbag seal 1 and the airbag seal 4 for connecting the airbag seal 1 and the airbag seal 4.

[0028] The airbag seal 1 and the airbag seal 4 can be used separately, or the airbag seal 1 and the airbag seal 4 can be placed side by side and connected by snap fasteners, straps or zippers 7.

[0029] The telescopic crossbeam 8 is a steel telescopic rod, which can be adjusted in length according to the distance between the end hydraulic support and the coal wall.

[0030] For the airbag seal 1 and the airbag seal 4, airbags of different sizes are selected for plugging according to the space at the upper and lower corners. The hanging crossbeam can be adjusted in length according to requirements. When moving the end hydraulic support, it is only necessary to exhaust the airbag and then it can move forward synchronously with the hydraulic support. Its installation and forward movement are fast and convenient.

[0031] The airbag seal 1 and the airbag seal 4 are made of 0.9 mm double-layer anti-static PVC laminated fabric with anti-static and flame-retardant properties. The operating environment temperature is -30 - 100 °C. It has strong density, good airtightness, light weight, fast movement, simple operation, fast plugging speed, good plugging and isolation effect, and can be reused.

[0032] The working principle of the present utility model:

[0033] Before use, select the airbag of the corresponding size according to the on-site situation. If the distance between the end hydraulic support and the coal wall is less than 500 mm, select the airbag with a width of 500 mm. If the distance is between 500 - 1000 mm, select the airbag with a width of 1000 mm. If the distance is greater than 1000 m, splice and use 2 airbags.

[0034] During use, first hang the uninflated airbag on the telescopic crossbeam 8 of the end hydraulic support. Connect the existing compressed air pipeline in the mine and the airbag inflation valve with an inflation hose for inflation to achieve complete sealing. During the production process of the working face, after the shearer cuts through the triangular coal at the head or tail of the face, use the airbag seal to seal between the end supports at the upper and lower corners of the working face and the roadway side. When the shearer cuts the coal and pulls the end hydraulic support at the head or tail, open the airbag exhaust valve in time for exhaust and follow the support forward. Repeat the above method for cyclic use.

[0035] When this device is used underground, airbags of different sizes can be selected for sealing according to the space at the upper and lower corners. The hanging crossbeam can be adjusted in length according to requirements. When pulling the end support, only exhaust the airbag and then it can move forward synchronously with the hydraulic support. Its installation and forward movement are fast and convenient, the sealing effect is good, and it can be used repeatedly.

Claims

1. A device for rapidly plugging the upper and lower corner airbags of a fully mechanized mining working surface, characterized in that: It includes an airbag seal 1 (1) and an airbag seal 2 (4); The airbag seal 1 (1) and airbag seal 2 (4) are anti-static resistance gas bags, which are installed between the end hydraulic support and the coal wall when in use, and are used to isolate the gas from the fully mechanized mining working face and the goaf area behind the hydraulic support; A retractable crossbeam (8) is arranged at the top side of the end hydraulic support, and an airbag seal 1 (1) and an airbag seal 2 (4) are suspended and fixed below the retractable crossbeam (8).

2. The device for rapidly plugging the upper and lower corner airbags of a fully mechanized mining working surface according to claim 1 is characterized in that: The airbag seal one (1) is a rectangular parallelepiped structure, and an inflation valve one (2) and an exhaust valve one (3) are provided at a certain height from the ground on the longitudinal axis of the airbag seal one (1); The airbag seal 2 (4) is a rectangular parallelepiped structure, and an inflation valve 2 (5) and an exhaust valve 2 (6) are arranged at a certain height from the ground on the longitudinal axis of the airbag seal 2 (4).

3. The device for rapidly plugging the upper and lower corner airbags of a fully mechanized mining working surface according to claim 1 is characterized in that: A hidden button, a strap or a zipper (7) is provided between the airbag sealing part 1 (1) and the airbag sealing part 2 (4).

4. The device for rapidly plugging the upper and lower corner airbags of a fully mechanized mining working surface according to claim 1 is characterized in that: The telescopic crossbeam (8) is a steel telescopic rod.

5. The device for rapidly plugging the upper and lower corner airbags of a fully mechanized mining working surface according to claim 1 is characterized in that: The airbag seal 1 (1) and the airbag seal 2 (4) are made of 0.9mm double-layer anti-static PVC mesh cloth anti-static flame retardant material.

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