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Layered opening adopts large-area rapid laying process

A large-area net-laying technology, which is applied to mining equipment, earthwork drilling, temporary shields, etc., can solve problems such as low safety factor, high labor intensity, and slow construction progress, so as to improve production safety, reduce heavy labor, The effect of rolling the net easily

Active Publication Date: 2018-11-09
HOCK TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention aims to solve the technical problems of slow construction progress, high labor intensity and low safety factor in the existing layered mining process, and provides a large-area rapid net laying process for layered mining.

Method used

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  • Layered opening adopts large-area rapid laying process
  • Layered opening adopts large-area rapid laying process

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Embodiment Construction

[0019] Combine below figure 1 with figure 2 The principles and features of the present invention are described, and the examples given are only used to explain the present invention, and are not used to limit the scope of the present invention.

[0020] In the description of the present invention, it should be understood that "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined. In the present invention, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , or integrated; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary, and it may be the internal communication of two components or the interaction relationship between two components, unless otherwise specified limit. Thos...

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Abstract

The invention relates to a coal mining technology, in particular to a large-area rapid net laying technology for layer mining of a coal mine. The technology is characterized by comprising the steps as follows: net pulling ropes are laid at the bottoms of high-strength polyester fiber nets at certain intervals, net rolls are formed through rolling, are parallel to supports and are placed in space at the back parts of the supports, a fixed pulley is mounted at the back part of each support, the pulleys are sleeved with nylon ropes of the high-strength polyester fiber nets, the supports move forwards to pull the nylon ropes to pass through the pulleys, the nylon ropes drive the net rolls to be spread, and the nets are laid automatically. The technologies for net conveying by workers, net laying, net connection and the like for metal net laying are omitted, the normal advancing speed of the working face is not affected, the security coefficient for layer mining is increased, and the problem about manual net laying behind the supports during layer mining is solved.

Description

technical field [0001] The invention relates to a coal mining process, in particular to a large-area rapid net-laying process for layered mining of coal mines. Background technique [0002] In the process of coal mining, when the coal seam is very thick, the coal seam is divided into several layers, usually 2 or 3 layers, and mined separately. This mining process is called "layered mining". In the process of thick coal seam mining, the recovery rate of layered mining is about 95%, and the recovery rate of top-coal mining is about 85%. Therefore, layered mining is more conducive to the reasonable recovery of coal resources than top-coal mining. When mining, it is necessary to lay a top net on the bottom plate of the working face as the roof for mining in the central area; after laying the top net, when the next layer is mined, the falling gangue from the upper layer can be dragged, which is beneficial to the mining of the lower layer Timed roof management. The purpose of la...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D19/02
CPCE21D19/02
Inventor 崔金声李金山
Owner HOCK TECH CO LTD
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