Abstract: A mill classifier, particularly a roller mill classifier, has a strip rotor and a concentrically arranged guide vane ring with flow-optimized guide vanes and flow channels for a parallel incoming and outgoing flow without constriction or with widening and a diffuser effect. The flow-optimized guide vanes with an incident flow tube with vertical rotation axis and at least one guide plate are arranged adjustably for a tangential to radial incident flow of the strip rotor.

Abstract: The invention relates to a roller mill with a rotary grinding bowl, grinding rollers rolling thereon and retaining devices for influencing the grinding material movement between the grinding rollers. For increasing the throughput of a low-cost roller mill, low-cost, effective retaining devices are provided between the grinding rollers and are in each case constructed as a rotary damming wall formed from one or more damming rolls. The damming rolls have damming faces, which block the outwardly moved grinding material and retain same for further grinding. In a first embodiment a damming face is constructed on the inner end face of a damming roll. According to a further development radially projecting damming rings with additional damming faces are fitted.

Abstract: The invention relates to a roller mill, particularly a modular air-swept mill, with a rotary grinding pan on which roll grinding rollers and having columns, on which are mounted by means of rockers the grinding rollers, the columns being in each case fixed to a foundation frame and arranged as a mill foundation frame. For the use of stable and torsionally stiff columns for relatively large roller mills, according to the invention the foundation frames of the columns, together with the connecting frame parts are arranged in a mill foundation to form a circumferential foundation frame, particularly a polygonal or U-shaped frame. A gear foundation frame is located in the mill center separately from the circumferential frame and permits the construction of a different level of the particular areas of the mill foundation.

Abstract: The invention relates to a mill classifier or sifter, particularly a roller mill classifier, which is suitable as a high-performance classifier for a roller pan mill or a roller mill, e.g. for an air-swept mill. In order to achieve in the case of a particularly simple construction a high flexibility and optimization of the classifying processes as a function of the particular needs, there is a combination of a static distributor formed from several adjustable guide blade rings and a ledge rotor as the dynamic classifier. In order to achieve a multiple classifying and in particular a reduction of the coarse material fraction prior to dynamic classifying, in the vicinity of the static distributor is provided a deflecting device in an area of the classifier cover, through which the disadvantageous effects of a 90.degree. deflection are largely avoided.

Abstract: The invention relates to a method and an apparatus for crushing material of different grain sizes, particularly an air-swept mill. From the method standpoint there is a regulation of the fluid feed flow in the vicinity of a blade ring and with adjustable reinforcing cladding segments, so that grinding material particle flows are moved in a flow envelope, particularly in a hyperboloid torus. From the apparatus standpoint, stationary and adjustable reinforcing cladding segments are arranged as a function of the grinding rollers rolling on a grinding pan. Using adjusting devices, acting on connecting areas of the reinforcing cladding segments, it is possible to bring about a horizontal or radial adjustment and/or an inclination adjustment of the reinforcing cladding segments for regulating the fluid feed flow from the outside and in continuous manner during a crushing process.

Abstract: An air-swept mill has an annular space with a blade ring between a rotary grinding pan and a casing wall for fluid delivery flow. The annular space and the blade ring form a gas directing or guiding device for rotary flow and circulation flow of the fluid delivery flow. Above the grinding pan, in the vicinity of a classifier, the casing wall is provided with at least one removal device for removing a part of an outer oversize flow, which is formed as a vented concentrated flow substantially directly at the casing wall.

Abstract: A grinding roller for roller or rolling mills, and its method for manufacture. For inexpensive manufacture and for increasing the service life, accompanied by limited repair expenditure, a roller jacket is manufactured in one piece for mounting on a radially inner roller body. The roller jacket has rated breaking points, along which the roller jacket breaks with radially directed breaking faces in the event of a corresponding stressing. By means of a holding device both the roller jacket manufactured in one piece and the optionally formed roller jacket breaking segments are fixed in an operationally safe manner.

Abstract: The invention relates to an air flow rolling mill for comminuting hard minerals such as slag or cement clinker. The discontinuities in operation occurring with high fineness levels are overcome in that with the grinding rollers are associated compression rollers for making the grinding bed uniform.

Abstract: The invention relates to a grinding surface of rolling mills and specifically to the grinding surface of grinding rollers and a grinding path. As the hitherto known solutions have been considered inadequate for increasing the surface life of grinding surfaces, use is now made of ceramic segments as a wear-preventing cladding and they are also fixed against dynamic stressing forces on the body or basic shell.

Abstract: A roll mill, more specially for coal, has a turning pan and a number of rolls running thereon for producing a milling effect. Each roll is supported on a rocker arm, able to be turned about a horizontal axis which is roughly tangential to the pan. The rocker arm and the roll on it are forced down against the pan by a hydraulic cylinder joined with a fork which, in turn, is joined with the rocker arm for turning it about the turnpin. The fork may be unjoined from the rocker arm for upkeep work on the roll. Each rocker arm has a gas-tight cover structure which is part of the casing of the mill.

Abstract: The specification describes a roller mill comprising a rotary grinding pan and grinding rollers adapted to roll on this grinding pan and which are journalled stationarily though with a provision for vertical pivoting. In accordance with the invention the grinding pan is supported by a plurality of hydrostatic axial individual bearings, which are arranged substantially symmetrically with respect to the grinding pan and take up all vertical loads. There are also provided a plurality of hydrostatic radial bearings arranged substantially symmetrically around the periphery of the grinding pan to guide and take up radial forces on the grinding pan.

Abstract: A roller mill of the sort with a pan turning about an upright axis, a driving system under the pan and rocking levers, pushing rollers against the pan, has a roller weighting system made up of a hydraulic cylinder, pulling the levers together, and joined with an air accumulator. The cylinder is turningly supported near its center of gravity in one of the levers.

Abstract: The specification describes a roller mill comprising a rotary grinding pan and grinding rollers adapted to roll on this grinding pan and which are journalled stationarily though with a provision for vertical pivoting. In accordance with the invention the grinding pan is supported by at least three hydrostatic axial individual bearings, which are arranged substantially symmetrically with respect to the grinding pan and can take up all vertical loads.

Abstract: A combined vane-rotor separator comprises a rotor, which has upstanding illor baffle rails arranged at the outer periphery thereof. A housing surrounds the rotor to which a feed mixture is supplied in a gas flow from a roll mill and from which the gas and fines leave through a draw-off duct. A cone is located below the rotor and is attached to the housing. A series of guide vanes arranged in a ring is located between the housing and the cone and serves as a guide for the gas flow from the roll mill.