【摘要】 某矿防尘前矽尘危害严重,扮尘浓度为329mg/m~3,查出矽肺558例,患病串43.12%,矽肺病死172例,病死率30.82%,造成经济损失4724万元,采取水、风防尘后粉尘浓度下降至3mg/m~3,检出矽肺16例,患病率1.97%,经济损失42万元,比防尘前少损失4682万元,表明防尘效果成绩显著。水比风防尘效果佳,提出了防尘经济效益统计方法及防尘的深远意义。更多还原

【Abstract】 The harmfulness of silicon dust in a mine of Guangxi was very serious beforedustproof measures were enforced.Average dust concentration reached to a high of329mg/M~3.Morbidity of silicosis was found to be558(43.12%)cases of which172 died,giving a mortality of 30.82%.Economic loss was estimated to be 47.24 mil-lion yuans.After water dustproof and wind-dustproof measures were taken,dustconcentration was lowered to 3mg/m~3 and only 16 silicosis patients were diagnosedwith a morbidity of 1.79%.Economic loss only amounted to 420 thousand yuans.These results were very striking and the effect of water-dustproof is better than thatof wind-dustproof.The statistical analysis of economic benefit and the profoundsignificance of dust proof measures were discussed.更多还原