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为了预测火力发电厂尘肺发病趋势,本文详细记录和测定了某火力发电厂接尘工人接尘时间、肺总通气量、粉尘浓度和游离二氧化硅含量,计算职工体内石英负荷量,然后采用累积剂量患病率寿命在法研究尘肺患病率与粉尘剂量反应关系,结果表明两者是显著正相关关系(r=0.923P<0.005).推算出其直线回归方程为y=-45.4044+11.0102x.提示每人平均工作30年,要想使尘肺患病率低于5‰,燃料运行、锅炉运行、锅炉检修作业场所平均粉尘浓度应分别控制在 10.00、2.57、3.78mg/m~3,如果严格执行国家关于最高容许浓度标准,坚持戴口罩,电厂工人工作50年也不会得尘肺病.
In order to predict the trend of pneumoconiosis in thermal power plant, this paper records and measures the dust collecting time, the total lung ventilation, the dust concentration and the free silica content of dust-collecting workers in a thermal power plant, The relationship between the prevalence of dust pneumonia and the dose response of dust was studied. The results showed that there was a significant positive correlation between them (r = 0.923P <0.005). The linear regression equation was calculated as y = -45.4044 + 11.0102x , Suggesting that each person should work 30 years on average, and if the prevalence of pneumoconiosis is less than 5%, the average dust concentration in the fuel operation, boiler operation and boiler overhaul site should be controlled at 10.00, 2.57 and 3.78 mg / m ~ 3, respectively Strict implementation of the state on the maximum allowable concentration standards, adhere to wear masks, power plant workers for 50 years will not get pneumoconiosis.