all mill is an efficient tool for grinding gold ore into fine powder.1.The Ball Mill is used to grind gold or to select gold mine.2. It is widely used in the gold ore processing plant 3.There are two ways of grinding: the dry way and the wet way. 2. Working Principle of Cement Mill There is grinding medium (steel balls) in the ball mill and the cylinder body is made of steel plate.The cylinder body has the lining plate, which can protect the shell from wearing out. When the feedstock is put into the cylinder body, under the centrifugal force and the friction by the steel balls, the materials can be smashed, the powder can be discharged through the stripper plate, and the whole processing is finished.