The questions of low ore treating ability,big fluctuation of concentrating indexes,low filtering feed ore concentration,etc,are existed in old magnetic concentration process flow of concentrating mill of Jinling iron mine.

Analysis of factors influencing fluidization characteristics in dense phase powder feeder;

The paper introduces selection,effect after putting into operation,existing problems and reformation conditions of process equipments reconstruction plan of matched copper concentrate steam drying system,dry ore dense phase conveying system and flue dust dense phase conveying system of 350 kt/a expanding reconstruction project of Jinlong Company.

A fuzzy model was applied to control the ball mill noise,then,an online fuzzy control of material feeding of ball miller can be actualized.