Abstract
The National Institute for Occupational Safety and Health (NIOSH) and the former U.S. Bureau of Mines (USBM) have given a significant effort over the past four decades in researching and developing engineering controls and interventions to reduce mine workers’ dust exposures during the bagging and palletizing of industrial minerals. Workers performing manual bagging and palletizing of 50- to 100-pound bags typically have some of the highest dust exposures of all workers at mining and mineral processing operations. This paper will provide an overview of available dust control technologies for bagging operations and present the findings of a recent case study that was conducted at four different industrial sand operations to identify the current types of bagging and palletizing technologies being used and to evaluate their effectiveness in reducing workers’ exposures to respirable crystalline silica dust. An evaluation will also be performed to determine if further reductions in respirable dust levels can be achieved by incorporating additional modifications or improvements into the existing technology.
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References
NIOSH (2002) Health effects of occupational exposure to respirable crystalline silica. Cincinnati, OH: U.S. Department of Health and Human Services, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, DHHS (NIOSH) Publication No. 2002–129
MSHA (2006) Metal and nonmetal health inspection procedures; chapter 5—mineral dusts—gravimetric method. U.S. Department of Labor, Mine Safety and Health Administration, Handbook number PH06-IV-1, pp. 5-2–5-4. https://arlweb.msha.gov/Readroom/HANDBOOK/MNMInspChapters/Chapter5.pdf
OSHA (2016) OSHA’s final rule to protect workers from exposure to respirable crystalline silica. Occupational Safety and Health Administration. https://www.osha.gov/dsg/topics/silicacrystalline/
NIOSH (1974) Criteria for a recommended standard: occupational exposure to crystalline silica. Cincinnati, OH: U.S. Department of Health, Education, and Welfare, Health Services and Mental Health Administration, National Institute for Occupational Safety and Health, DHEW (NIOSH) Publication No. 75–120
USBM (1985) Dust control in bag-filling operations. By Volkwein JC, Gaynor RD. Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines Information Circular 9005
Cecala AB, Volkwein JC, Daniel JH (1988) Reducing bag operator’s dust exposure in mineral processing plants. Appl Ind Hyg 3(1):23–27
USBM (1986) Dust reduction capabilities of five commercially available bag valves. By Cecala AB, Covelli A, Thimons ED. Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines Information Circular 9068
USBM (1984a) New bag nozzle to reduce dust from fluidized air bag machines. By Cecala AB, Volkwein JC, Thimons ED. Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines Report of Investigations 8886
USBM (1984b) New bag nozzle system reduces dust during bagging operations. By Cecala AB. Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines Technology News 207
Robertson JL (1986) Overhead filters reduce dust levels in air supply. Rock Prod 89(7):24
USBM (1995) Reducing respirable dust levels during bag conveying and stacking using bag and belt cleaner device. By Cecala AB, Timko RJ, Prokop AD. Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines Report of Investigations 9597
Cecala AB, Timko RJ, Prokop AD (1997) Bag and belt cleaner reduces employee dust exposure. Rock Prod 100(3):41–43
USBM (1988) Pallet loading dust control system. By Cecala AB, Covelli A. Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines Report of Investigations 9197
USBM (1989) New pallet loading system lowers worker’s dust exposure and improves bag stacking process. By Cecala AB. Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines Technology News 328
Cecala AB, Zimmer JA, Smith B, Viles S (2000) Improved dust control for bag handlers. Rock Prod 103(4):46–49
NIOSH (2019) Dust control handbook for industrial minerals mining and processing. Second edition. By Cecala AB, O’Brien AD, Schall J, Colinet JF, Franta RJ, Schultz MJ, Haas EJ, Robinson J, Patts J, Holen BM, Stein R, Weber J, Strebel M, Wilson L, and Ellis M. Pittsburgh, PA: U.S. Department of Health and Human Services, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, DHHS (NIOSH) Publication No. 2019–124, RI 9701
NIOSH (1998) NIOSH manual of analytical methods (NMAM), Fourth Edition. Particulates not otherwise regulated, total: Method 0600, Issue 3, 6 pp.
Thermo Scientific (2013) Model pDR-100AN/1200 Instruction Manual. pp.35–36. https://www.thermofisher.com/order/catalog/product/PDR-1000AN#/PDR-1000AN
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Louk, A.K., Patts, J.R., Haas, E.J. et al. Evaluation of Engineering Controls at Bagging Operations to Reduce Exposures to Respirable Crystalline Silica Dust. Mining, Metallurgy & Exploration 37, 1055–1064 (2020). https://doi.org/10.1007/s42461-020-00210-z
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DOI: https://doi.org/10.1007/s42461-020-00210-z