Gypsum Powder Grinding Ball Mill Htmball Mill
An Experimental Study On The Ultrafine Grinding Of Gypsum. Apr 01 2016 the grinding machine was a laboratoryscale ball mill made of stainless steel with the dimensions 200 200 mm the grinding media were stainless steel balls with a density of 8000 kgm 3 and with three different diameters ie 2 3 and 4 cm powder density was found to be 23 gcm grinding experiment was performed as a batch process