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我国是水泥生产和消费大国,生产和消费量已连续20多年居世界第一,且长期达到世界水泥总产量的50%以上。目前,我国有水泥生产企业5 000余家,从业人员约60余万,在我国国民经济中占有举足轻重的地位。水泥工厂生产过程中最主要的职业危害因素为水泥粉尘。水泥粉尘极易导致水泥尘肺,其发病与粉尘的接触时间、浓度和分散度等有关,一般发病工龄在20年以上,最短为10年。据相关数据表明,我国水泥行业经常接触粉尘的从业人员约有20万人,水泥粉尘已成为影响水泥工厂从业人员健康的主
China is a big country for cement production and consumption. Its production and consumption have ranked first in the world for more than 20 consecutive years and has reached more than 50% of the world’s total output of cement for a long time. At present, there are more than 5,000 cement production enterprises in our country, employing about 600,000 people and occupying a pivotal position in the national economy of our country. Cement factory production process is the most important occupational hazards of cement dust. Cement dust can easily lead to cement pneumoconiosis, its incidence and dust exposure time, concentration and dispersion, etc., the general incidence of more than 20 years of service, the shortest of 10 years. According to the relevant data, there are about 200,000 practitioners in China’s cement industry who are exposed to dust regularly. Cement dust has become the main factor influencing the health of cement factory workers