Insert, has two spring legs which are components of leg springs connected to each other by bent joint and stayed together at obtuse angle, where one spring leg is inactive and extends inside region of mounting units

摘要

A method for manufacturing fine mineral powders using systems that include one or more air classifiers, dust separators like cyclones and/or filters, at least one ventilator and instruments connecting tubes or pipes for the transport of air. The relative humidity of air in the air classifier is kept in a range between 15% to 35%.