Reducing Bag Operator's Dust Exposure in Mineral Processing Plants.
Cecala-AB; Volkwein-JC; Daniel-JH
App Ind Hyg 1988 Jan; 3(1):23-27
This paper describes the evaluation of five commercially available bag-filling valves to determine their dust reduction capabilities. An extended polyethylene valve was found to be the most effective, resulting in a 62-pct reduction in operator dust exposure as compared to the standard paper valve. A dual bag nozzle system was developed that decreases product loss and significantly lowers the operator's exposure. With this system, one nozzle fills the bag, and the other nozzle exhausts excess air when filling is complete. An improved bag clamp reduces product blowback during filling, thus reducing product accumulation on the outside of the bag. The system reduces operator exposure up to 83 pct and significantly lowers the subsequent exposure of workers stacking the bags onto pallets.
App. Ind Hyg., V. 3., No. 1, Jan, 1988, PP. 23-27