据研究认为,云锡矿工肺癌发病率高的原因在于井下粉尘的氡子体和砷的综合作用,因此降低粉尘浓度便是矿工肺癌防护的重要措施之一。为证实井下降尘试验提出的最佳降尘方案的可靠性及理论依据,因而进行氧化矿物理性质的研究。内容包括氧化矿主要成份分析、粒度分析、含湿量、颗粒间的凝聚性及粉尘分散度的测定等。 According to the research, the reason why the high incidence of lung cancer in the tin miners is due to the combined action of radon progeny and arsenic in the downhole dust, so reducing the dust concentration is one of the important measures for miners’ lung cancer protection. In order to confirm the reliability and theoretical basis of the optimum dust reduction scheme proposed in the downhole dustfall test, the physical properties of the oxide ore are studied. Including the main components of oxide ore analysis, particle size analysis, moisture content, cohesion between particles and the determination of dust dispersion.