l前言水泥是人工合成的无定型硅酸盐，它的生产过程中所用的石灰石、粘土、煤、矿渣、石膏等原料以及成品水泥均可产生大量的粉尘，统称水泥尘。工人长期接触水泥尘可引起混合性尘肺，它是我国现行法定职业病名单中职业性尘肺之一。近几年，龙岩市乡镇水泥厂发展迅速，接尘工人 l Introduction Cement is a synthetic amorphous silicate. The limestone, clay, coal, slag, gypsum and other raw materials and finished cement used in its production process can produce a large amount of dust, collectively referred to as cement dust. Workers exposed to cement dust for a long time can cause mixed pneumoconiosis, which is one of the occupational pneumoconiosis in the current list of legal occupational diseases in our country. In recent years, Longyan City, the rapid development of township cement plant, dust workers