After the installation of the new ball mill, it takes a period of running-in to start production. The amount of the ball mill ball added when the ball mill is first activated and the ratio are different from those in normal production. The size of the ball mill ball can be divided into three types: large, medium and small. The diameter of the big ball is divided into two types: 120mm and 100mm. The diameter of the middle ball is 80mm, and the diameter of the small ball is divided into 60mm and 40mm.
Under normal circumstances, the ball mill does not need to add a small ball during grinding, because the reasonable friction between the steel ball and the steel ball, the steel ball and the ore, the steel ball and the ball mill liner during normal operation of the ball mill will increase the wear. To make the big ball mill small and the middle ball to be a small ball.
However, when the ball mill is first used, it needs to match the three large, medium and small balls. The proportion of adding large balls is 30%-40%, the proportion of medium balls is 40%-30%, and the proportion of small balls is 30%. Moreover, the first addition should be added according to 80% of the ball loading amount given by the manufacturer. After the ball mill is installed, the size of the ball mill needs to be meshed, and the processing volume is gradually increased. After the ball mill runs normally for two or three days. Check the meshing of the large and small gears and wait until everything is normal. Open the ball mill manhole cover and add the remaining 20% steel balls for the second time.
Normally operated ball mills do not need to be added to the ball. The exception to this is that there is no monomer dissociation at the useful mineral particle size. When the mill's fineness does not meet the flotation requirements, an appropriate amount of pellets can be added. In the ball mill, the steel ball wears continuously during the operation. In order to maintain the ball filling rate and the reasonable ratio of the ball, and to maintain the stable operation of the ball mill, it is necessary to carry out reasonable ball filling and low compensation.www.grindingballsmedia.com