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mei xi fei
Author(s): 
Pages: 22-23
Year: Issue:  1
Journal: Occupation and Health

Keyword:  煤矽肺巷道掘进矽尘肺理化特性煤尘肺二氧化矽粉尘性质煤矿采煤工肺纹理;
Abstract: <正> 【煤矽尘的来源】在煤矿开采过程中的主要两道工序,一为巷道掘进,一为采煤,巷道掘进主要是凿岩、爆破、装渣、运输等,接触的主要是以矽尘为主,二为采煤工序,接触的主要是以煤尘为主,游离二氧化矽含量较低,当从事上述作业时,这两种粉尘均可同时侵入作业
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