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随着矿井开采强度的增大和劳动生产率的提高,橡胶、合成材料制品在井下获得广泛应用。与此同时,也增加了井下火灾的危险性。苏联煤炭工业部在1969～1979年期间的事故总数虽有所下降,但井下火灾事故的比例并未发生重大变化;在最近5年内,甚至还有所增加。这是由于对运输皮带的可燃性鉴定组织不善、电气设备与皮带运输机的运转规程遭到破坏、以及削弱了工程技术部门和煤炭生产联合企业对安全作业的督促检查所
With the increase of mining intensity and the improvement of labor productivity, rubber and synthetic materials are widely used downhole. At the same time, it also increases the danger of downhole fires. Although the total number of accidents in the Soviet Union Ministry of Coal Industry between 1969 and 1979 has declined, the proportion of underground fire accidents has not changed significantly; in the recent five years, it even increased. This is due to poor organization of the flammability identification of transport belts, deterioration of the operating procedures of electrical equipment and belt conveyors, and weakening of supervision and inspection of safety operations by engineering and technical departments and coal production complexes