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调查机械化立窑水泥厂职工1031人尘肺发病情况和现场有害因素。粉尘浓度10.0～50.6mg/m~3,粉尘分散度10μm以下占94～99％,其中5μm以下占78.5～91％;夏季气象条件以生料车间烘干机温度(35.6～38.4℃)和辐射热(3.0～3.5cal/cm~2/min)为最高,其他作业场所气温及辐射热也均超过国家卫生标准;所测作业点噪声在86.9～104.5dB之间,都超过85dB的卫生标准。尘肺发病情况:自1963年起,每隔2—3年进行
Investigate the mechanization of shaft kiln cement factory workers 1031 pneumoconiosis and on-site hazardous conditions. Dust concentration of 10.0 ~ 50.6mg / m ~ 3, dust dispersibility of 10μm or less accounted for 94 ~ 99%, of which 5μm or less accounted for 78.5 ~ 91%; summer weather conditions to raw material workshop dryer temperature (35.6 ~ 38.4 ℃) and radiation Heat (3.0 ~ 3.5cal / cm ~ 2 / min) was the highest, and the temperature and radiant heat in other workplaces also surpassed the national health standards. The measured noise of the operation point was between 86.9 and 104.5dB, all exceeding the hygiene standards of 85dB. Pneumoconiosis: Since 1963, every 2-3 years