Oct 02 2019 · Irreversible lung disease has started to show up among young workers who cut grind and polish countertops made of increasingly popular "engineered" stone. The material is more than 90 silica.
Get PriceQueensland has led the charge in the crackdown on workplace silica exposure banning dry-cutting grinding or polishing of engineered stone and establishing a working group to develop a new code of practice to control silica exposure in the stone benchtop industry.
Get PriceDRYING AND DRY GRINDING. In plants where silica flour is to be produced drying is often necessary. Drying is done in rotary oil or gas fired dryers. Dry grinding to minus 100 or minus 200 mesh is done in Mills with silica or ceramic lining and using flint pebbles or high density ceramic or porcelain balls.
Get PriceIt can also cause lung cancer. Cutting breaking crushing drilling grinding or blasting concrete or stone releases the dust. As workers breathe in the dust the silica settles in their lungs. For information on protecting workers from harmful exposure to silica dust see the resources section below which includes a silica
Get PriceGBM brings a large number of high-qualification talents together. Bai Yinghui, general research and development engineer, is a well-known expert in crushing and grinding area who won the youth medal of technology of the state council and receives special government allowance.
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