Review on vertical roller mill in cement industry its performance ...
Strong drying ability Inlet hot air from Kiln can dry materials with 20% water content. (max moisture 20% vs. 3% in ball mill) [15], [16]. • Big feed size The vertical roller mill can grind the material of particle size of 5% of the grinding roller diameter. The feed size is generally 40 to 100 mm and can reach 120 mm in case of large VRM.