The difference between laboratory ball mill and ordinary ball mill

The difference between laboratory ball mill and ordinary ball mill

With more and more kinds of laboratory ball mill, how to choose the right ball mill has become a difficult problem. Such as planetary ball mill, experimental drum ball mill, experimental mixing ball mill…… A range of laboratory ball mills, knowing the difference, became a quick way to choose the right type.

The difference of laboratory ball mill is divided into planetary grinding mode, drum type, stirring type and so on. Grinding methods include dry grinding and wet grinding. Ordinary ball mill and high energy ball mill are distinguished by the energy level contained in the material action of ball grinding.

At present, there is no standard related to ordinary ball mill and high energy ball mill. If only to the speed of the ball mill to identify and very inaccurate. We cannot say that the same equipment, at 10r/min is an ordinary ball mill, to 100r/min becomes a high-energy ball mill.

It is perhaps more clear to compare the normal and high energy ball mills in the laboratory ball mills. Roller ball mill is a very classic ordinary ball mill, while planetary ball mill is widely used in mechanical alloying and other high-energy ball milling methods, which is a very popular high-energy ball mill. The same size model, the highest speed of the planetary ball mill is more than 1000r/min, and the roller ball mill is about 100-200r/min. The energy produced by the ball mill stands out.

You might ask, isn’t that the difference between RPMS? Of course not, the roller ball mill to do 1000r/min is very simple, but the models on the market are mostly between 100-200r/min, because the roller ball mill is limited by the critical speed of the speed can not use such a high speed, once the centrifugal force generated by the speed exceeds the gravity of the ball, the ball will move with the ball mill tank at the same time, relatively static, Grinding completely fails. Planetary ball mill is a variety of centrifugal force interaction, planetary structure makes a variety of forces balance, always effective grinding, most of the energy used in the ball grinding.