ABSTRACT

A new single-tube vibratory mill, the Eccentric Vibratory mill, is introduced. It resulted from a joint development of the Institute for Processing and Disposal Technology of the Technical University Clausthal and the Siebtechnik GmbH, Mülheim. The Eccentric Vibratory mill is excited single-sided by an unbalanced power unit which is flanged directly to the grinding tube. The mass compensation is achieved by a counterbalance. This arrangement causes the mill filling to perform elliptical, circular, and linear vibrations in contrast to the homogeneous circular vibrations of conventional vibratory mills. Due to its modular design, units of different lengths are available, allowing the adaptation to any desired milling target. Milling results achieved in industrial applications with balls and rods as grinding media proof that the specific power consumption is reduced by approx 50 % as compared to conventional vibratory tube mills and that the throughput is increased by the factor 2.