Colorado School of Mines tackles control of respirable coal dust.
Coal Age 1976 Apr; 81(4):129-131
Water sprays for removing dust from the air are most effective when the water droplets and dust particles are of comparable size. The removal of dust particles of diameters less than 5 microns is difficult because the water tends to evaporate. By condensing water vapor onto the dust particles, the particle size can be increased to a size where they will fall out or can be removed by sprays. The processes involved are nucleation and condensation; they are affected by particle size, solubility, and wettability, presence of hygroscopic salts, charge, temperature, relative humidity, pressure and electric fields. This technique has promise for the removal of the smallest dust particles in coal mines. (Grant No. R01-OH-00565)
NIOSH-Publication; NIOSH-Grant; Pulmonary-system-disorders; Respirable-dust; Wet-dust-control; Mining-industry; Dust-control; Air-quality-control; Physical-properties; Air-treatment; Phase-transformations; Chemical-properties; Dusts
Physics Colorado School of Mines Department of Engr Physics Golden, Colo 80401
Colorado School of Mines, Golden, Colorado