Formulas kilnSlideShare Jul 22 2010 · Formulas kiln 1 CEMENT MILL FORMULAS MILL CRITICAL VELOCITY 76 D 12 MILL ACTUAL VELOCITY 32 D 12 GCT Kg gas x 025 t 1t 2 Kcal min Y H t2H t3 t1 Temperature of Kiln exit gases t2 Temperature of gas to be achieved or maitained t3 temperature of water 15 C H t2 Heat content of water at