Augmentation of a Mining Machine With a High-pressure Jet.
McNary-RO; Blair-JR; Novak-DD; Johnson-DI
3rd Int'l Symp on Jet Cutting Tech 5/11-13/76 IIT Res Inst Chicago Preprint D2 PP D2-d20 :D2-d20
Underground coal cutting tests for the purpose of monitoring respirable dust levels were performed with a boom-type mining machine in which the mechanical action of the bits was augmented by a high-pressure water jet. The respirable dust was reduced by the action of the jet to levels less than 2 mg/m3.
3rd Int'l Symp on Jet Cutting Tech, 5/11-13/76. IIT Res Inst, Chicago, Preprint D2, PP. D2-d20