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 |