###### Open and closed circuit dry grinding of cement mill rejects …

Яг одоо бидэнтэй нэгдээрэй2004-1-14 · The maximum fineness attainable by open circuit stirred mill tests is 6200 cm 2 /g. • During the open circuit tests, specific energies excessively increases beyond Blaine values of 4500 cm 2 /g which corresponds to a specific energy consumption of 60 kW h/t. Beyond this point, further grinding can be obtained for the speeds above 600 rpm.