Abstract: A roller press (1) is described for grinding particulate material such as cement raw materials, cement clinker and similar materials, the roller press having two oppositely rotating rollers (2, 3) with one roller being movably supported relative to the other roller and with the rollers (2, 3) forming between them a roller gap (4). A co-rotating annular disc is attached to one of the rollers (2), which subject to actuation by a number of springs (7), is movable in the direction of the roller axis and which, in the area around the roller gap (4,) extends over the end surface (3a) of the other roller. The annular disc is divided into a number of ring sectors (5) over its circumference, each individually biased by springs towards the end surface (3a) of the other roller (3). Hence, it is possible to maintain the grinding bed thickness at the ends of the rollers, thereby attaining a uniform pressure distribution across the rollers, as well as uniform grinding efficiency and uniform wear on the rollers.

Abstract: A roller press for grinding particulate material, such as cement raw materials, cement clinker and similar materials is described, the roller press (1) comprising two rollers (2, 3) rotating in opposite directions, where one roller is movably mounted relative to the second roller, and where the rollers (2, 3) between them form a roller gap (4). A feed system has at least one inclined plate section (5) for regulating the feeding of particulate material along the axial extension of the roller gap (4) and the inclined plate section (5), in the axial direction of the rollers, comprises at least two substantially parallel plates (6, 7), substantially positioned in the same plane, and independently movable back and forth relative to the roller gap (4). Thus it is possible to regulate the feeding of material over the axial extension of the roller gap, thereby avoiding distortion of the movable roller.

Abstract: A roller press (1) is described for grinding particulate material such as cement raw materials, cement clinker and similar materials, the roller press having two oppositely rotating rollers (2, 3) with one roller being movably supported relative to the other roller and with the rollers (2, 3) forming between them a roller gap (4). A co-rotating annular disc is attached to one of the rollers (2), which subject to actuation by a number of springs (7), is movable in the direction of the roller axis and which, in the area around the roller gap (4,) extends over the end surface (3a) of the other roller. The annular disc is divided into a number of ring sectors (5) over its circumference, each individually biased by springs towards the end surface (3a) of the other roller (3). Hence, it is possible to maintain the grinding bed thickness at the ends of the rollers, thereby attaining a uniform pressure distribution across the rollers, as well as uniform grinding efficiency and uniform wear on the rollers.