编辑同志:我矿是个年设计产量为50多万吨的煤矿,现有两个生产矿井。为了提高运输效率,我矿将皮带运输机从各回采工作面经集中运输上山、水平巷道、皮带井筒一直敷设至地面煤仓。由于这个变革,使井下测风十分困难。众所周知,常规测风是采用机械风表在测风点的断面内,按照线路匀速移动风表,首先 Editor’s Comrade: Mine is a coal mine with a production capacity of over 500,000 tons a year and two existing mines. In order to improve the transportation efficiency, the mine conveys the belt conveyor from the mining face to the coal bunker on the ground through the centralized transportation up the mountain, the horizontal roadway and the belt shaft. Because of this change, it is very difficult to wind downhole. As we all know, the conventional wind measurement is the use of mechanical wind table at the wind measurement point section, in accordance with the uniform movement of the wind table, first