cryogenic turbo grinding mills in portugal
cryogenic turbo grinding mills in portugal Rotor hammer and pin mills were found to be good for small scale grinding at a feed rate of 225 g min 1 under ambient conditions and at 245 g min 1 for cryogenic grinding continuous process whereas the ball mill could be used for a lower feed rate of 156 g min 1 under ambient grinding and 208 g min 1 under cryogenic