OFR-90-81 Flame-Drill Channelling Reduces Noise And Dust Levels (Project Orion)

The National Institute for Occupational Safety and Health (NIOSH)
James A. Browning
Organization:
The National Institute for Occupational Safety and Health (NIOSH)
Pages:
32
File Size:
8552 KB
Publication Date:
Jan 1, 1980

Abstract

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Conventional flame channelling operates continuously at over 120 db --flame-drill channelling at a maximum of 95 db. The latter process was developed under this program. Individual drill holes are spaced to leave narrow rock webs. Sound and dust passing from the hole are effectively treated by a muffler and water injection.
Citation

APA: James A. Browning  (1980)  OFR-90-81 Flame-Drill Channelling Reduces Noise And Dust Levels (Project Orion)

MLA: James A. Browning OFR-90-81 Flame-Drill Channelling Reduces Noise And Dust Levels (Project Orion). The National Institute for Occupational Safety and Health (NIOSH), 1980.

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