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Improved withdrawing technology for hydraulic supports on fully mechanized coal face

A fully-mechanized mining face and hydraulic support technology, which is applied to pillars/supports, mining equipment, earthwork drilling and mining, etc., to achieve the effects of reducing the number of workers, many parallel working locations, and a small scope of influence

Active Publication Date: 2013-01-30
SHANXI JINCHENG ANTHRACITE COAL MINING GRP CO LTD
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Problems solved by technology

[0005] In order to solve the technical problem of rapid recovery of all hydraulic supports in the fully mechanized mining face, the present invention provides an improved hydraulic support retraction process in the fully mechanized mining face

Method used

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  • Improved withdrawing technology for hydraulic supports on fully mechanized coal face
  • Improved withdrawing technology for hydraulic supports on fully mechanized coal face

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Embodiment Construction

[0029] Support models used in a working face: 115 ZZ8800-14 / 26D hydraulic supports, 6 ZZG8800-16 / 30D end hydraulic supports,

[0030] 1. Recycling method of working face hydraulic support equipment:

[0031] 1. After the coal mining machine, the working slide and the electromechanical equipment in Lane 1523071 have been recovered, the removal operation will be carried out. First, install two slow-speed column-returning winches 1 and 3 and a mounting platform 2 in the unloading channel of the working face. The installation position of the first column-returning winch 1 is about 20-30 brackets away from the tail of the working face for unloading Use (hereinafter referred to as the withdrawal winch); 40 brackets are installed with a movable mounting platform 2 for loading flatbed trucks on hydraulic supports; the second column return winch 3 is installed at 50 brackets for bracket loading used when.

[0032] 2. The method of removing the frame at the working face is to use 3 co...

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Abstract

The invention relates to a using technology of coal mining equipment, and in particular relates to an improved withdrawing technology for hydraulic supports on a fully mechanized coal face. The improved withdrawing technology solves the technical problem of rapidly withdrawing all the hydraulic supports on the fully mechanized coal face and comprises the following steps of: 1. preparation work before withdrawing the supports on the coal face; 2; adjustment and withdrawal of sheltering frames; and 3. withdrawal of the hydraulic supports on the coal face: firstly withdrawing the supports by using withdrawal winches on the coal face, dragging the supports to a support loading platform for entrucking by using the winch at the 50th support after withdrawing the supports on the coal face from an original position by using the support withdrawal winches, carrying away the supports by using the support loading winches on the coal face and support loading platform wagons in a rail transport manner, and completing the withdrawal of the supports after circulating three times. The technical scheme which is put into practice by professional technical staff has the advantages of being rapid and safe, saving the cost, reducing the consumption and having very important significance for improving the production efficiency of mines and increasing the device availability.

Description

technical field [0001] The invention relates to a technology for using coal mining equipment, in particular to an improved retraction process of a hydraulic support in a fully mechanized mining face. Background technique [0002] With the application of high-power coal mining equipment in mines, the recovery process of fully mechanized mining faces is becoming more and more perfect, resulting in frequent equipment installation and recovery at underground fully mechanized mining faces. The roof of the 15# coal seam in our group's Gushuyuan mine is K2 limestone, the 1.28 to 17.85m, with an average thickness of about 9m, hard and dense, difficult to collapse. During the mining process, it is easy to cause the goaf to hang from the roof, which is extremely unfavorable to the management of roof support. The floor of the coal seam is gray to dark gray mudstone and aluminous mudstone, with black carbonaceous mudstone pseudo-bottom locally. [0003] The original frame removal proce...

Claims

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Application Information

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IPC IPC(8): E21D15/60
Inventor 张满胜葛鹏程董光拽牛保炉王杰晋新林邢海龙黄健尹卫兵
Owner SHANXI JINCHENG ANTHRACITE COAL MINING GRP CO LTD
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