Reducing Bag Operator's Dust Exposure in Mineral Processing Plants.
Cecala-AB; Volkwein-JC; Daniel-JH
NIOSH 1990 Nov:996-1000
Several different research projects dealing directly with the reduction of the bag operator's dust exposure in mineral processing facilities were summarized. Each project investigated the possibility of using a completely different method and approach. The first approach was to use a more efficient type of bag valve. The next two approaches involved engineering controls which were implemented in and around the bag loading area and included the use of a dual bag nozzle system and an overhead air supply island. The last approach dealt with the control of dust sources from other areas of the facility or mill, such as the control of background dust sources. In all cases, respirable dust concentrations in air at the bag operator's station were monitored by the same method. The authors conclude that in order for mineral processing facilities to keep bag machine operators' dust exposure at acceptable levels, the operators must be aware of the different dust sources and methods to reduce these sources. Comparison of various techniques in the actual working environment allows facility and mill operators to select the methods best suited to their needs.
Dust-exposure; Occupational-hazards; Dust-control; Industrial-safety; Mineral-processing; Industrial-engineering; Dust-control-equipment; Equipment-design; Work-environment;
DHHS (NIOSH) Publication No. 90-108
Proceedings of the VIIth International Pneumoconioses Conference