Study on horizontal turbine classification

In this paper, the influence of inclining angle of turbine blades on classification results was studied employing mica as the experimental materials. Based on the experimental results, the fish-hook effect in air classification appearing in Tromp curve was explained and discussed in term of particle agglomeration. The results obtained showed that the smaller the inclining angle of the blades, the smaller the classified particle cut size was, but the lower the classification precision was. The fish-hook effect decreased and the classification precision increased with the increase in inclining angle of blades, which may be attributed to decrease in the critical agglomerated particle size. (C) 1999 Elsevier Science S.A. All rights reserved.