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A foldable fast sealing device for trapezoidal roadway

A plugging device and foldable technology, which is applied in safety devices, mining devices, dust prevention, etc., can solve the problems of large manpower and material resources, difficult recycling of wood boards, and no trapezoidal roadway, etc., to achieve convenient operation and thermal stability Good chemical properties, flexible and sensitive stroke effect

Active Publication Date: 2021-10-29
SHANDONG UNIV OF SCI & TECH
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Coal is mined in a backward style. After mining, a goaf is formed. Oxygen enters the goaf due to external cracks, and the remaining coal in the goaf spontaneously ignites. In order to cut off the air in the roadway and enter the gob, it is necessary to prevent a large amount of mining coal combustion and gas from entering. Explosion occurs, causing coal loss and causing accidents, so a blocking device is needed to block the goaf
And the existing blocking method is to use wooden boards to build baffles to block the entrance of the roadway, and then use single pillars to fix and support the wooden boards. After the concrete is solidified, it is difficult to dismantle the originally built planks, often destructively, and it is difficult to recycle the dismantled planks, and there is no special sealing device for trapezoidal roadways

Method used

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  • A foldable fast sealing device for trapezoidal roadway
  • A foldable fast sealing device for trapezoidal roadway
  • A foldable fast sealing device for trapezoidal roadway

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Embodiment Construction

[0031] In order to better explain the present invention and facilitate understanding, the technical solutions and effects of the present invention will be described in detail below through specific implementation manners in conjunction with the accompanying drawings.

[0032] A kind of foldable fast sealing device of trapezoidal roadway, such as figure 1 As shown, it includes a retractable main frame, a foldable fireproof board and a control center. The foldable fireproof board is arranged on both sides of the main frame. Block trapezoidal tunnels.

[0033] like Figure 2-3 As shown, the main frame includes telescopic columns 1 and pipe fittings 3 cross-hinged between the columns, the pipe fittings 3 and the pipe fittings 3 are intersected and hinged to form a parallelogram, and the telescopic columns 1 are hollow designed to reduce weight; the telescopic columns 1 at both ends of the main frame are During the horizontal movement, the pipe fittings 3 are driven to move, and ...

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Abstract

The invention relates to a trapezoidal roadway-based foldable fast sealing device, which includes a retractable main frame, a foldable fireproof board and a control center. The foldable fireproof boards are arranged on both sides of the main frame, and the main frame is elongated, After unfolding, the foldable fireproof board is close to the side wall of the trapezoidal roadway to block the trapezoidal roadway. The main frame includes telescopic uprights and pipe fittings cross-hinged between the uprights; the telescopic uprights are three-stage telescopic structure uprights to adapt to roadways of different heights; the bottom of the uprights of the main frame is provided with moving wheels; the outside of the telescopic uprights is movably connected with reels Fire prevention device; foldable fireproof boards are symmetrically connected at both ends of the main frame, and foldable fireproof boards include fixed blocks, fireproof top boards, fireproof bottom boards, fireproof side boards and supporters. The invention is light, high temperature resistant and safe and reliable.

Description

technical field [0001] The invention belongs to the technical field of coal mine production safety, and in particular relates to a folding-type rapid sealing device for a trapezoidal roadway. Background technique [0002] Coal is mined in a backward style. After mining, a goaf is formed. Oxygen enters the goaf due to external cracks, and the remaining coal in the goaf spontaneously ignites. In order to cut off the air in the roadway and enter the gob, it is necessary to prevent a large amount of mining coal combustion and gas from entering. Explosion occurs, causing coal loss and causing accidents, so a blocking device is needed to block the goaf. And the existing blocking method is to use wooden boards to build baffles to block the entrance of the roadway, and then use single pillars to fix and support the wooden boards. After the concrete is solidified, it is difficult to dismantle the original wooden planks, often destructively, and it is difficult to recycle the dismant...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21F17/12E21F5/00
CPCE21F5/00E21F17/12
Inventor 田莹张强郭宏伟
Owner SHANDONG UNIV OF SCI & TECH
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