Application

Features

Dust concentration mg/m3

Dust removal rate

Cost

$/t

Before use

After use

Waste silo

A dry, windy climate affects a large amount of dust produced by vibration and impact.

174.2

13.8

92.12%

0.030

Coal preparation plant

Floating dust below 10 μm is generated during crushing, screening, and scraper transfer.

366.71

9.27

95%

0.031

Fully mechanized excavation face

The coal seam has a low water content; the minimum amount of rock dust to inhibit coal dust explosion is 55%, and the volatile content is 38.35%. Therefore, coal dust has the risk of explosion.

88

41.82

65.34%

0.021