Preparation method of special low-density grinding column for cement grinding mill

摘要: The invention relates to a preparation method of special low-density grinding column for cement mill. comprises the steps with bauxite, alumina powder and like as main raw materials chromium oxide, zirconium calcium magnesium ferric manganese titanium silicon dioxide modified materials, adding sol, silica sol metal salt into slurry at stage; molding by rolling, isostatic pressing or machine obtain green body; calcining after drying body column. By virtue scientific proportion design, strict process control unique system, disclosed is low in cost, excellent wear resistance, lower power load comparison high-density body, suitable substituting grinding, iron ore gold capable reducing electric consumption 30-50%.