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为加强粉尘生成规律研究,摸清井下作业场所使用防尘措施后粉尘分散度构成情况,评价矿尘的危害性和劳动卫生条件,鉴定通风防尘措施的降尘效果,我们曾对全局部分重点采掘工作面进行了跟机循环测定和粉尘分散度的显微镜分析。同时,采用显微镜分析计算、呼吸性粉尘测定仪实测、冲击式飘尘粒度浓度测定仪测定等三种方式,对全尘样品中呼吸性粉尘所占比重进行综合分析。分析、计算结果和评价结论及方法步骤如下。
In order to strengthen the research on the rule of dust generation, to find out the composition of the dust dispersion degree after using the dust prevention measures in the downhole work site, to evaluate the harm of the mine dust and the sanitary conditions of labor, and to identify the dust reduction effect of the ventilation and dust prevention measures, Face with the machine cycle determination and the degree of dust dispersion microscope analysis. At the same time, the author analyzed the proportion of respirable dust in the whole dust sample by using three methods: microscopic analysis and calculation, respirable dust detector, and impact particle size analyzer. Analysis, calculation results and evaluation conclusions and method steps are as follows.