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急倾斜煤层“无人弧形工作面采煤法”,一般称为“Erin”法,在工作面无支护采煤法中占突出的地位。下面扼要介绍一下这种方法及其一些新的发展。 强倾斜煤层无人工作面冲击铇煤机采煤 Erin矿于1964年年中,首先在倾角为55~(g+)的煤层采用无人无支护工作面回采。为此,工作面布置成倾斜的,其坡度与充填矸石的安息角相适应,而后用冲击铇煤机进行采煤(见图1)。主驱动装置设在运输平巷,辅助驱动装置设在回风平巷,其功率各为40瓩。铇煤机牵引链应预先张紧,使其具有8～15吨的预张力。通过移动回风平巷和运输平巷的驱动装置,一次回采进度为2米,
Steep coal seam “Unmanned arc mining method”, commonly known as “Erin” method, in the face of unsupported coal mining law to occupy a prominent position. Here is a brief introduction of this method and some new developments. Strong inclined seam unmanned surface impact mining coal mining Erin ore in mid-1964, first in the coal seam angle of 55 ~ (g +) using unmanned mining face mining. For this purpose, the face is tilted and its slope is adapted to the angle of refill of the refuse, followed by coal mining using an impact briquette machine (see Figure 1). The main drive is located in the transport lane, the auxiliary drive is located in the return lane, the power of each 40 瓩. Coal traction chain should be pre-tensioned, it has 8 to 15 tons of pre-tension. By moving the return air lane and driving lane drive, a mining progress of 2 meters,