By Jay F. Colinet, Andrew B. Cecala, Gregory J. Chekan, John A. Organiscak, Anita L. Wolfe, Department of Health and Human Services Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health
Compiled through the U.S. Dept of future health and Human prone, CDC/NIOSH place of work of Mine defense and well-being examine, this 2010 guide used to be constructed to spot to be had engineering controls that may help underground and floor metal/nonmetal mining operations in lowering employee publicity to respirable silica airborne dirt and dust. The controls mentioned during this guide diversity from long-used controls that have constructed into criteria, to more moderen controls, that are nonetheless being optimized
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Extra resources for Best Practices for Dust Control in Metal-Nonmetal Mining
Steenland K, Brown D . Silicosis among gold miners: exposure-response analyses and risk assessment. Am J Pub Health 85(10):1372–1377. Timko RJ, Thimons ED . Damage resistant brattice stoppings in mine with large entries. Eng Min J 188(5):34–36. USBM . Crystalline silica primer. S. S. Bureau of Mines. 25 CHAPTER 4. CONTROLLING RESPIRABLE SILICA DUST IN MINERAL PROCESSING OPERATIONS By Andrew B. S. surface metal/nonmetal mining industry is composed of a wide range of different mineral types and processes.
They use less moisture to produce the same effects as a straight water application. However, they are not very often used in the metal/nonmetal mining industry based upon the following limitations: • Surfactants are more expensive than a typical water application. 37 • Surfactants may alter the properties of the mineral or material being processed. • Surfactants can damage some equipment such as conveyor belts and seals. • Surfactant systems require more upkeep and maintenance than typical water systems.
These curtains are normally installed at the head and/or tail ends of the conveyor. In many instances, a LEV is tied into the enclosure at these conveyor dump or transfer locations to capture generated dust. It has been shown that the takeoff port to the LEV system should be a least 6 feet from the dump point to minimize the pickup of oversized particles [MAC 1980]. The air velocity at this exhaust port should also be kept below 500 fpm to avoid the pickup of larger particles [Yourt 1990]. • Belt scraper.
Best Practices for Dust Control in Metal-Nonmetal Mining by Jay F. Colinet, Andrew B. Cecala, Gregory J. Chekan, John A. Organiscak, Anita L. Wolfe, Department of Health and Human Services Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health