Process for mining thin coal seam containing ferric sulfide nodule and hard dirt band and fully mechanized mining hydraulic support thereof
A technology of hydraulic support and iron sulfide, which is applied in the direction of pillar/support, ground mining, mining equipment, etc., can solve the problems of poor safety, high labor intensity and poor efficiency.
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[0044] The present invention will be further described below in conjunction with drawings and embodiments.
[0045] exist Figure 1~3 The arrangement of fully mechanized mining equipment in the coal mining face of the present invention is shown in the thin coal seam recovery technology containing iron sulfide nodules and hard gangue. Its fully mechanized mining equipment is composed of drum shearer 1, hydraulic support 2 and scraper conveyor 3 and so on. In order to solve the problem of comprehensive mechanized mining of thin coal seams containing iron sulfide nodules and hard gangue, the following new measures are mainly adopted in fully mechanized mining equipment and coal mining technology:
[0046] a. The drum shearer adopts a high-power shearer, a high-strength wide drum, and cuts coal at a shallow cutting depth, that is, the cutting depth is smaller than the drum width.
[0047] b. The hydraulic support adopts the cover-type hydraulic support, which is pushed quantitati...
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