| 摘要 |
The invention relates to a roller mill, in particular an air-swept roller mill of the LOESCHE type. The roller mill is preferably used for the comminuting cement clinker or granulated slag and has fixed rotating grinding rollers (4) on a grinding track (2) of a rotating grinding pan (3) and fixed rotatable preparation rollers (6) between the grinding rollers (4), said preparation rollers compressing and deaerating the bed of product to be milled. To increase the efficiency of the grinding process whilst simultaneously decreasing the energy demand, the position of the preparation rollers is altered in such a way that said preparation rollers, which are connected upstream, roll over and compress the entire product to be milled that is supplied to the grinding rollers in a spiral. The preparation rollers, when viewed from above the grinding pan, are positioned radially in the direction of the centre of the grinding pan and their running surfaces roll along a smaller race than the associated grinding rollers. |
