桑樹坪煤礦綜采綜掘工作面呼吸性粉塵危害及防治對(duì)策
[Abstract]:Coal miners are a high incidence of pneumoconiosis in China. With the improvement of mining mechanization level and mining depth, dust hazard in underground mining face is becoming more and more serious. Because of different equipment, different dust prevention facilities and different types of work, the level of dust exposure of workers is quite different, and the degree of harm to human body is also different. In order to evaluate objectively the dust hazard in the coal mining face of our country, taking the new coal mine of Sangshuping coal mine as the object, under the condition of the operation of the production equipment and the technical measures of preventing dust, the fully mechanized mining face and the fully mechanized excavating face are studied. Individual samples of respirable dust were collected from various job sites in the working face. The content of free Sio _ 2, dispersion and respiratory dust concentration in each workplace were measured in laboratory. Combined with test data and actual situation of dustproof and dedusting facilities, this paper analyzes the reasons for exceeding the standard, defines the key post of dustproof, and puts forward the prevention and control measures of dust hazard.
【作者單位】: 西安科技大學(xué)安全科學(xué)與工程學(xué)院;陜西安科安全生產(chǎn)技術(shù)研究所有限公司;
【分類號(hào)】:TD714.4
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