Patent ID: 8267340
Filing Date: 2012-09-18
Classification: B02C

Abstract:
1. An airflow pulverization and classification device comprising: a pulverizer configured to pulverize a particulate material, wherein the pulverizer includes: a pulverization chamber including a collision member; a jet nozzle configured to direct jet flow toward the pulverization chamber; a feeder separate from the pulverization chamber and configured to feed the particulate material to a supply tube; a supply nozzle having an acceleration tube connected with the jet nozzle at a first end thereof while connected with the pulverization chamber at a second end thereof, and the supply tube connected with the feeder at a first end thereof while connected with the acceleration tube at a second end thereof to supply the particulate material fed by the feeder to the acceleration tube so that the particulate material is collided with the collision member by the jet flow to be pulverized; a pressure gauge provided on the feeder configured to measure at least one of a suction pressure in the feeder, a suction pressure in the supply tub; and a suction pressure at a junction of the acceleration tube and the supply tube, wherein supply conditions of the particulate material supplied to the acceleration tube are controlled on the basis of the measured suction pressure, a classifier configured to classify the pulverized particulate material.