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扇形采煤法是一项综采新技术。这项新技术的出现突破了综采工作面只能设计成矩形工作面的老框框,扩大了综机使用范围。当受地质条件限制,工作面在开板或收尾遇到三角煤时,用此法采煤能够有效地减少可采储量的损失,在不增加设备的前提下,延长了开采时间。 大角度的扇形采煤,目前在国内甚为少见。邢台煤矿综采一队在1982年8月25日至10月16日期间,在7205顶分层工作面将近收尾时,在机头基本不动的情况下,机尾推进了96米,旋转了40°,从而实现了
Fan mining method is a new technology of fully mechanized mining. The emergence of this new technology has broken through the old fully mechanized face can only be designed as a rectangular face of the old box, expanding the use of integrated machine. When constrained by the geological conditions, the face encountered in the opening or closing of the triangular coal, the coal mining method this method can effectively reduce the loss of recoverable reserves, without increasing the premise of equipment, to extend the mining time. Large-angle sector coal mining, is currently very rare in China. Xingtai Coal Mine fully mechanized mining team from August 25, 1982 to October 16, 1982, 7205 top stratified face near the end, the basic head immobile, the tail advanced 96 meters, rotated 40 °, thus achieved