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Safety protection screen for excavation working face

A technology of excavation face and safety net, which is applied in the field of safety net of excavation face, and can solve the problems of unsafe excavation face and the like

Inactive Publication Date: 2015-05-27
兖矿能源集团股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a safety net for driving face, which can solve the problem of unsafe driving face

Method used

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  • Safety protection screen for excavation working face
  • Safety protection screen for excavation working face
  • Safety protection screen for excavation working face

Examples

Experimental program
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Embodiment Construction

[0021] The core of the present invention is to provide a safety net for the driving face, which can solve the unsafe state of the driving face.

[0022] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] Please refer to figure 1 , figure 2 with image 3 . figure 1 It is a schematic diagram of the structure of the safety net of the driving face provided by the present invention; figure 2 It is a schematic diagram of the structure of the upper telescopic tie rod of the safety net of the tunneling face provided by the present invention; image 3 It is a schematic diagram of the structure of the lower end of the telescopic pull rod of the safety net of the driving face provided by the present invention.

[0024] The material of the safety net for the tunneling face provided by the present inv...

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PUM

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Abstract

The invention discloses a safety protection screen for an excavation working face. The safety protection screen (90) is prepared from polyester fiber reinforced plastic; an upper end telescoping rod (20) and a lower end telescoping rod (30) are respectively arranged at the upper end and the lower end of the safety protection screen (90). The safety protection screen (90) further comprises four hooks which are matched with the upper end telescoping rod (20) and used for suspending the upper end telescoping rod (20); top points are arranged at two ends of the lower end telescoping rod (30); the safety protection net (90) and the upper end telescoping rod (20) are bound through iron wires. With the adoption of the safety protection net, coal briquettes falling from the excavation working face can slide down along the protection net, and thus the excavation working face is avoided dangerous state.

Description

Technical field [0001] The invention relates to the field of safety technology engineering, in particular to a safety net for a tunneling face. Background technique [0002] With the rapid development of my country's economic construction, the market demand for coal is increasing. [0003] As we know, coal mining is generally located below the ground; and as the mining depth continues to increase, the geomechanical environment of the underground roadway is becoming more and more complicated; sometimes, the surrounding rock of the underground working face is very soft and easy to break; sometimes, it is tunneling. During the construction process, the geological structural zone is often encountered, which causes the roof of the tunneling face to be broken, the working face heaves, and collapses. For the mining area with siltstone on the roof, although the structure is relatively stable, during the cutting process, the erosion of spray water and the glamour caused by the large amount...

Claims

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Application Information

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IPC IPC(8): E21D19/00
CPCE21D19/00
Inventor 孟庆燕田涛
Owner 兖矿能源集团股份有限公司
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