<p>A vortex type air classifier comprises a rotor provided with a plurality of vortex controlling blades, and guide vanes provided about the outer peripheries of the blades with a classification chamber therebetween. A setting pitch P is found by the following expression in relation to separated particle sizes Dp (th), so that powder materials are accurately classified at a desired point of classification: P </= 1.04 x Dp(th)<0.365>. <IMAGE></p>
申请公布号
EP0645196(A1)
申请公布日期
1995.03.29
申请号
EP19940910553
申请日期
1994.03.29
申请人
CHICHIBU ONODA CEMENT CORPORATION
发明人
ITO, MITSUHIRO, CENTRAL RESEARCH LABORATORY;TAMASHIGE, TAKAMIKI, CENTRAL RESEARCH LABORATORY;FUJII, SATORU, RESOURCES AND ENVIRONMENT MATERIALS