破砕, 粉砕の最近の進歩

抄録

This paper gives the description of the recent trends in crushing and grinding field. As the remarkable topics, getting bigger of machinery, increasing application of automatic control and striking advances in autogenous grinding are described using some examples.
As for autogenous grinding, the excellent grinding mechanisms and the good effects on several succeeding extracfive processes of the improved Aerofoil mill, and some discussions on wet pebble milling are explained.
Furthermore, some essays on grinding by tumbling mill at supercritical speed or non-cataracting state, improvements in mill liners and fine grinding mi!is, and the main points of the theories and studies in comminution presented by F. C. Bond, R. T. Charles, and others are briefly introduced.