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Moving and support dismantling method for working faces of breaking roofs of mines

A technology for crushing roofs and working faces, which is applied to mining equipment, earthwork drilling, pillars/brackets, etc. It can solve problems such as property loss, difficult work, and threats to miners' personal safety, so as to achieve the safety of support removal and ensure life. The effect of safe and economical coal mining

Inactive Publication Date: 2012-12-19
SHANDONG XINMEI MASCH EQUIP CO LTD
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AI Technical Summary

Problems solved by technology

[0002] Under normal circumstances, the working face with poor coal mine conditions, the roof is broken, and the floor is relatively wet. The normal working method of bolting to cover and withdrawing the frame cannot be used normally, and the work is very difficult, which poses a great threat to the personal safety of miners. In this case, the support equipment is generally abandoned and the frame is no longer removed, which has caused a lot of property damage.

Method used

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  • Moving and support dismantling method for working faces of breaking roofs of mines

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Embodiment Construction

[0026] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0027] Such as figure 1 As shown, first, a 200cm-wide tunnel is opened along the direction of the support. The roof of the tunnel will not collapse in a short time. Every time 60cm is excavated forward, a single hydraulic prop is used as a support for temporary support. When the length reaches 120cm and can accommodate the staff, use a c...

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Abstract

The invention discloses a moving and support dismantling method for working faces of breaking roofs of mines, comprising the following steps: step 1. building a passage along the bracket direction; adopting the wood board as a support, then arranging a single hydraulic support column to execute the temporary support while the top plate of the passage is not collapsed in short time; when the length of the passage can contain a worker, adopting an electric coal drill to drill towards to the front side of the support, and then inserting twisted steel after drilling; and step 2. additionally taking the reinforcing steel bar, welding the steel pipes on one end of the reinforcing steel bar, and butting the other end of the steel pipe with the twisted steel which is inserted in the drilling holes; detaching the temporary support, hanging the metal net, screwing with iron wires to form a steel shed; finally adopting the single hydraulic support column to execute the formal support. The moving and support dismantling method for the working faces of the breaking roofs of the mines can realize the purpose of safely and quickly dismantling the support for the working face.

Description

technical field [0001] The invention relates to a method for moving and removing a working face of a broken roof in a coal mine. Background technique [0002] Under normal circumstances, the working face with poor coal mine conditions, the roof is broken, and the floor is relatively wet. The normal working method of bolting to cover and withdrawing the frame cannot be used normally, and the work is very difficult, which poses a great threat to the personal safety of miners. In this case, the support equipment is generally abandoned, and the frame is no longer withdrawn, which has caused a large amount of property damage. Contents of the invention [0003] In order to solve the above problems, the present invention provides a method for moving and unloading the working face of the broken roof in coal mines. The deep space is drilled through the coal electric drill, and the threaded steel bars are inserted into the holes. The metal mesh is screwed firmly with iron wires, so...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D15/60
Inventor 安广红
Owner SHANDONG XINMEI MASCH EQUIP CO LTD
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