AT RITA pulverizers can be designed for either pressurized or non-pressurized suction operation Vertical Roller Mill The vertical roller mill VRM shown in Figure 4 is an air swept, medium-speed, vertical pulverizer with integral classifier It pulverizes coal by applying hydraulically-loaded grinding pressure through three grin-...

A rotatable throat for a coal pulverizer is improved by creating a high pressure drop in the air ports which surround the throat The lower portions of the air port nozzles are made of vanes and relatively thin sides, and shaped to provide air entrance areas from five to six times the release points of the nozzl...

3 The high-pressure air blower constantly inhales air within the coal pulverizer 4 Along with the high speed airflow, micronized materials are brought to the classifier 5 The qualified particles are screened and driven into the cyclone powder collector, finally exit from the discharging valve at the bottom...