New dust suppression system from DSI

DSI Underground Systems USA has widened its product range with the addition of the DYWI Polymer Rock Dust System, developed to enhance dust control in underground coal mining.

The new system aides customers in meeting the current requirements of MSHA (Mining Safety Health Association) in terms of inert rock dust application in underground coal mining and also reducing respirable rock dust in the mine atmosphere.  

The system combines wet dusting technology and polymers to ensure the effective application of inert rock dust, along with reducing respirable dust. The system can be applied at rock dust thicknesses of a range between 0.5-40mm, and typically dries within 24 to 48 hours, depending on the mine air velocity and humidity.

The compact size of the equipment ensures that it can be easily transported in underground mines using standard means of transportation, such as wheel loaders or overhead monorail systems. The system can be easily operated by two people and the coal surface can be sprayed during continuous shift operation. A typical batch operation provides approximately 75m of roof and rib coverage, depending on mine height and width.

DSI says the hydraulically powered air compressor provides 30-50% more coverage per batch by improved dispersion of the product via the air assist spray nozzle.