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Soil similar coal working face fully sealed shield support device

A technology for shielding supports and working faces, which is applied to mine roof supports, earthwork drilling, temporary shields, etc., can solve problems such as roof fall, serious siding, and worker safety cannot be guaranteed.

Inactive Publication Date: 2017-01-25
ANHUI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above-mentioned technical problems, the object of the present invention is to provide a fully enclosed shielding support device for a similar earthy coal working face, so as to solve the problems of roof caving, serious slabs, and unguaranteed worker safety on the similar earthy coal working face

Method used

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  • Soil similar coal working face fully sealed shield support device
  • Soil similar coal working face fully sealed shield support device
  • Soil similar coal working face fully sealed shield support device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Such as Figure 1-3 As shown, a type of soil coal working face fully enclosed shield support device includes several parallel shield support systems. The shield support system includes a hydraulic support 1 and a carbon fiber mesh 2. The carbon fiber mesh 2 is a rhombic carbon fiber mesh. The hydraulic support 1 is Support shield type hydraulic support, hydraulic support 1 includes top beam 11, side guard 12, telescopic beam 13, cover beam 14, four columns 15, front connecting rod 16, rear connecting rod 17, base 18 and pushing device 19, four The bottom of root column 5 is arranged on the base 18 by being hinged, and the rear portion of top beam 11 is hinged with the upper end of cover beam 14; 16 and the lower end of the rear link 17 are hinged with the rear of the base 18, the shield beam 14, the front link 16, the rear link 17 and the base 18 are hinged to each other to form a four-bar linkage, and the top beam 11 is an integral structure. The front body of beam 11...

Embodiment 2

[0032] A fully enclosed shielding support device for a kind of earthy coal working face, except that the length of the primary side guard 121 is 800mm, and the length of the secondary side guard 122 is 400mm, the others are the same as in the first embodiment.

[0033] The fully enclosed shielding support device of the soil-like coal working face of the present invention, in the process of use, before the shearer works, the telescopic beam 13 is extended to the coal wall, and the side guard 12 is opened to withstand the coal wall 3; When the machine is working, take back the side guard 12 and the telescopic beam 13, move the hydraulic support 1, open the telescopic beam 13 and the side guard 12, and open the front connecting rod 16 and the rear connecting rod 17 to reduce the beam end distance and fully support the Roof, for mining.

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Abstract

The invention provides a soil similar coal working face fully sealed shield support device, which comprises a plurality of shield support systems in parallel arrangement, wherein each shield support system comprises a hydraulic support frame and a carbon fiber net; the hydraulic support frame comprises a top beam, an upper protecting plate, a telescopic beam, a shield beam, four upright posts, a front connecting rod, a back connecting rod, a base and a push moving device; the bottom ends of the four upright posts are arranged on the base through hinging; the back part of the top beam is hinged to the shield beam; the shield beams, the front connecting rod, the back connecting rod and the base are mutually hinged to form a four-connecting-rod mechanism; the top beam is of an integral structure; the telescopic beam is hinged in a front end body of the top beam through two telescopic beam jacks; the maximum telescopic quantity is 800mm; the stroke of the telescopic beam jacks is greater than the coal cutting pace; the upper protecting plate is hinged to the front end of the telescopic beam; the carbon fiber net is laid above the hydraulic support frame; the back parts of the shield beams are also covered by the carbon fiber net. The soil similar coal working face fully sealed shield support device solves the problems that the puking and wall caving of the soil similar coal working face are serious; the safety of workers cannot be ensured.

Description

technical field [0001] The invention relates to the technical field of coal mine machinery, in particular to a fully-enclosed shielding support device for an earthy coal working face. Background technique [0002] As a supporting equipment, hydraulic supports are widely used in coal mining. With the continuous increase of coal mine mining depth, for the prevention and control of side slabs and roof fall in extremely soft coal seams with complex geological conditions, it is necessary to fully analyze the engineering geological conditions and mining technical conditions of the working face, and use the interaction between the support and the surrounding rock to select the appropriate The hydraulic support of the working face and the supporting support system are used for prevention and control work. [0003] Soil-like coal, as a newly proposed innovative concept, represents a broken and loose coal mass with physical properties similar to soil but not soil. For example, the 66...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D19/00E21D23/03E21D23/04
CPCE21D19/00E21D23/0013E21D23/03E21D23/04
Inventor 李家卓谢广祥王磊殷志强李传明
Owner ANHUI UNIV OF SCI & TECH
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