Measuring and regulating solid charge for jet mill or impact pulverizer

摘要

The method involves measuring continuously the instantaneous rpm of the impeller grader or the rotor of the impact pulverizer connected with the jet mill in the form of an rpm signal fluctuating over time. The strength of the rpm fluctuations is evaluated as a measurement value for the required feeding with solid matter. The measurement value or an electric signal derived from this is used to regulate the feed of solid material.