haora ball mill wear parts processing river pebble

Volgodonsk Ball Mill Wear Parts Processing River Pebble Ball mills mineral processing metallurgy where an approximate figure for the constant is 35 for rod mills 40 for overflow ball or pebble mills and 45 for grate discharge ball or pebble mills 231 is specific gravity of grinding media for rods or balls normally 785 q is the charge volume in fraction of mill volume 40 040 nc is the mill