... 40/15-30 1.3-2.0 200-400 Belt conveyor is widely used in mining, gravel field, metallurgy, building ... processing, coal mining and other industries transport material. Belt conveyor, belt conveyor for conveying bulk density of less than 1.67 / ... rhythmic streamlined transportation line. Therefore, the modernization of belt conveyor is widely used in various industrial enterprises. Underground tunnel in ...