Contents of silica dust operation and its influence on human body

In the process of industrial production, solid particles fly in the production environment, larger particles settle on the ground in a short time, and smaller particles are suspended in the air for a long time. Dust particles suspended in the air are called productive dust. Most of the productive dust contains silicon dioxide (silicon). When the silicon content is above 5%, it is the most harmful to workers' health. Free silica is the main component of chronotropic, and about 95% minerals and rocks contain chronotropic. Therefore, there are many industries that are exposed to silica dust and jobs that cause silica dust in the air, which are summarized as follows:

1, mining

Mining metal minerals (gold, mace, iron, zinc, antimony, etc.). ) and nonmetallic minerals (mica, fluorite, cinnamon coal, etc. ), the types of work exposed to silica dust are rock drillers, pneumatic drillers, loaders, blasters, pillar workers, miners and transporters.

2. Ore and rock processing industry

The types of jobs exposed to silica dust include crushers, grinders, sieves, packers and transporters.

3. Refractory industry

In the process of raw material preparation, molding and roasting. The types of workers exposed to silica dust are crusher, powder mixer, material carrier, silica brick, magnesia brick, high alumina brick, clay brick and kiln.

4. Glass manufacturing industry

In the process of raw material preparation, the types of jobs exposed to silica dust are crusher, pulverizer, sieve division, batching, mixing, blank making and discharging.

Ceramic and enamel industry

In the process of raw material preparation, crushing, processing, grinding, etc. There are grinders, grinders, sifters, batching workers, mixing workers, blank makers, polishers and so on who are exposed to silicon dust.

Foundry industry

The types of workers who come into contact with silica dust are polishers, sand mixers, foundry workers, grinding wheel cleaners, sand box finishers and transporters.

other

In tunneling, mountain road construction, water conservancy construction, national defense construction, geological exploration and other industries, the types of workers exposed to silica dust are blasting workers, pneumatic drillers, crushing workers, charging workers, transportation workers and so on.

Working in an environment with high dispersion and high concentration of silica dust, silicosis may occur over time if the working conditions are not good and there is no personal protection knowledge.