尘肺的种类很多,煤尘肺是尘肺的一种,它是采煤工人和长期接触煤作业的一种职业病。采煤工业比较复杂,可分为露天开采和井下开采两种。采煤生产包括开拓掘进,采煤和井下运输三个方面。由于作业环境较差、生产过程复杂,在生产过程中存在许多影响人体健康的因素。其主要危害是产生各种粉尘,引起各种尘肺。煤矿的粉尘主要有三种,即矽尘、煤尘和混合性粉尘。煤尘是 Many types of pneumoconiosis, pneumoconiosis is a kind of pneumoconiosis, it is a coal mine workers and long-term exposure to occupational diseases. Coal mining industry is more complex, can be divided into open-pit mining and underground mining two. Coal mining includes excavation, coal mining and underground transportation. Due to poor operating environment, the production process is complicated, there are many factors that affect human health in the production process. The main hazard is the generation of dust, causing a variety of pneumoconiosis. There are three main types of dust in coal mines, namely silica dust, coal dust and mixed dust. Coal dust is