ジェット粉砕における粉砕産物の増加比表面積に及ぼす諸因子の影響

概要

論文の詳細を見る
The effect of various factors on specific surface area produced was experimentally investigated by means of the jet mill which had been reported in the previous paper. Six kinds of samples -- limestone, marble, gypsum, feldspar, quartz and beer bottle glass -- wTere used in this experiments.　The specif1c surface area produced was found to increase with - 0.25 power of feed rate and to be proportional to the total air rate through all nozzles. Grinding ratio R_g^* based on the specific surface area produced increased proportionally to the approximate 0.25 power of R_f (the ratio of feed rate to air rate), 0.75 power of Re_t (Reynolds number based on typical nozzle), 1.0 power of R_d (the ratio of feed size to mill diameter) and 0.8 power of Hardgrove grindability, that is, the following non-dimensional equation was obtained;　R_G^* = 0.05R_f^Re_t^R_d^Hd^
山形大学の論文
1982-01-20