Stone crushing plant is a small conveyor belt, there should also be covered by buildings and traps dust bag type filter belt level breakpoints and belt connection point.
Crushed stone mill with a conveyor belt. Should be covered buildings Electrostatic precipitators and bag filters at the turning point of the belt. And point belt
The mill grinding small stones with transport by Belt should have building cover. And dust trap type bag filter at the turning point level belt, and the connection points belt.