Dear sir I should be greateful if you would send me information about awys to increase blain cement without increase energy consumption by setting afew percentage of mill fan dampers and frish air dampers and bag house fan it could increase the blain cement or not justby increasing the seprator rpm up 125 rpm together with feed reducting to 90 t/h and increasing tention pressure to160 bar we have cement mill type mps 4250bc in the pefifer and feed size 95%<30mm max 10%over size component /analysis 95%clinker 5%gypsum and finished product rate 120t/h on dry basis grinding fineness 3000 cm2/g and surface moisture 0.5%max what is your solution about increase blain with out increase energy consumption? Yours faithfully