Skip directly to search Skip directly to A to Z list Skip directly to navigation Skip directly to page options Skip directly to site content

Mining Publication: An Evaluation of Methods for Controlling Silica Dust Exposures on Roof Bolters

NOTE: This page is archived for historical purposes and is no longer being maintained or updated.

Original creation date: February 2002

Image of publication An Evaluation of Methods for Controlling Silica Dust Exposures on Roof Bolters

This paper examines methods for limiting occupational silica exposures for roof bolting personnel in underground coal mining. A canopy air curtain and an air tube were evaluated as means to provide filtered air over the breathing zone of these personnel. Laboratory testing showed that dust reductions beneath the air curtain and air tube approached 60 percent and 40 percent, respectively, with low interference air velocities. The data also showed that dust reductions were highest for positions closest to the device and that these levels decreased with distance. This paper also evaluates a metal rake, a flexible insert, and a rigid insert for cleaning the roof bolter dust collector box. Less dust was produced when using the rigid insert. Surprisingly, the flexible insert was sometimes no better than scraping or raking the dust onto the mine floor. However, little dust got on the coveralls when using either of the inserts.

Authors: GV Goodman, JA Organiscak

Conference Paper - February 2002

  • 0.38 MB

NIOSHTIC2 Number: 20023177

2002 SME Annual Meeting, Feb 25-27, Phoenix, Arizona, preprint 02-163. Littleton, CO: Society for Mining, Metallurgy, and Exploration, Inc., 2002 Feb; :1-5