Respirable Dust Control in Preparation Plants.
Trans SME-AIME 1988 1988 40:223-228
This paper reports results of a respirable dust survey of 18 U.S. coal preparation plants. Of these, three were essentially free of dust problems. Respirable dust exposure of workers in the remaining plants depended on the time spent in the dusty areas. In five of the plants surveyed, Bureau tests showed that in some areas worker exposures could exceed federal dust limits in less than 2 h. Cooperative studies were arranged with coal preparation plants utilizing three different dust control techniques. These included a standard baghouse-type dust collector, two types of scrubbers, and an electrostatic precipitator. Results of these evaluations are presented. Various types of ventilation systems used during summer and winter conditions were also evaluated. Results showed that appropriate ventilation can provide a highly cost effective method for controlling coal preparation plant dust.
Trans. SME-AIME, 1988, V. 40, PP. 223-228