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mei chen fei
Author(s): 
Pages: 20-21
Year: Issue:  1
Journal: Occupation and Health

Keyword:  煤尘肺煤尘浓度二氧化矽肺气肿发病率井下作业防尘措施煤矿作业方式生产条件;
Abstract: <正> 【煤尘的来源】在煤矿生产过程中,包括井下作业和露天作业两种,都能产生很多煤尘,煤尘的产生与作业方式以及工序有关。其中以井下凿岩和采煤工序产生的煤尘最多,其机械化程度越高,煤尘也越多,如在没有防尘措施的生产条件下,干式风钻凿岩时,工作面煤尘浓度可高达800~1400mg/M~3,爆破后其爆
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