Fundamental Aspects of Air Classifier Operation and Design.

摘要

The study of the fundamental aspects of air classifier operation and design focused on: development of a descriptive model of air classification, development of a test for evaluating anticipated air classifier performance, effect of moisture on air classifier performance, effect of air classifier configuration, effect of feed composition, and effect of glass on the recovery of light fraction. Experiments were conducted using either a continuous or a batch air classifier. A direct correlation is found between the particle size distribution of glass in the light and heavy fractions and the air velocity in the classifier. Even with small particle sizes, the geometry of the particle is found to have a large effect on how the particle will react in the classifier. The presence of paper in the feed causes a small but definite increase in the quantity of glass in the light fraction at velocities of 1400 ft/min and less. (ERA citation 08:012631)