Dynamic particle size measurement of coal dust. Final report, 1 October 1973--30 November 1976

Technical Report · Tue Feb 01 04:00:00 EST 1977

OSTI ID:6155157

Marple, V A; Rubow, K

The report evaluates methods and techniques by which the size distribution and concentration of mining-related dusts can be measured. One result has been the development of a portable, battery-operated optical particle counter multichannel analyzer system which can be used to determine the size distribution and concentration of mining aerosols. One important aspect has been the development of a calibration technique which relates the output of the optical particle counter to the penetration of the particles through an impactor. This results in a calibration curve in terms of the aerodynamic ofr Stokes' diameter of the aerosol particles. Using this technique, calibrations were performed on coal, silica, Arizona road dust, potash, and rock dust (copper ore) aerosols. Another task described is the calibration and evaluation of the GCA respirable dust monitors (RMD) 101-1 and 301. Other tasks discussed include performing field studies in cooperative research programs with Bureau of Mines personnel, development of a portable polystyrene latex generator for use in optical particle counter calibrations in the field, the incorporation of impactor classification devices on to the inlets of aerosol mass measuring instruments to give mass size distributions, and a study of the density of coal particles as a function of the particle size.

• Research Organization: Minnesota Univ., Minneapolis (USA). Particle Technology Lab.
• OSTI ID: 6155157
• Report Number(s): PB-285096
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
012000* -- Coal
Lignite
& Peat-- Mining
AEROSOLS
AIR POLLUTION MONITORS
CALIBRATION
COAL MINES
COLLOIDS
DISPERSIONS
DUSTS
EQUIPMENT
MINES
PARTICLE SIZE CLASSIFIERS
PERFORMANCE TESTING
SAMPLING
SOLS
TESTING