Cement Grinding Table Segments

The main trends concerning cement grinding table segments in the cement industry are still higher efficiency, reduction of the power consumption and system simplicity. In the case of new orders, vertical mills have increased their share to over 60% and ball mills have fallen to less than 30%. It is somewhat surprising that the number of different grinding processes and mill types used by the industry have increased rather than decreased.

The throughput capacities of the employed mills have risen, but in some cases this has brought machines, e.g. gear units, to the limit of their capabilities. In the cement industry, the use of cement grinding table segments is currently showing a two-digit annual growth rate. The number of mill vendors has also increased and the competitive pressure has intensified.

The cement grinding table segments makes use of four mill types: the ball mill, the vertical mill, the roller press (also known as high-pressure grinding roll) and the horizontal mill. A report on the development over time towards those mill types, which was largely determined by efforts to achieve higher energy efficiency, was already presented in.

However, it also has to be taken into consideration that the different mill feed raw material, coal, clinker and slag have different grindabilities, feed particle size ranges and moisture contents and also demand different throughput rates, fineness data and other quality parameters. Each of the cement grinding table segments types and the associated grinding process are therefore more suitable for some applications and requirements than for others, and there is no universal mill]. Instead, combination processes have been devised, or else certain mill types dominate individual applications.