IMPROVED COAL PULVERIZER CLASSIFIER CONE AND CONTROL SYSTEM

摘要

An improved coal pulverizes classifying system in which the feedpipe and classifier cone are provided with extensions to protect coal flow into the pulverizes from the annular fine-lifting airflow from the pulverizes throat. The feedpipe and cone extensions replace traditional intermittent discharge structure, improving flow through the classifier system and reducing the disruptive effects of the discharge on the ,annular flow from the pulverizes throat. An adjustable classifier venturi is also provided to adjust the exit angle and exit velocity of the fines leaving the classifier cone by the combustion delivery chute.