Attrition mills and propeller shaft assemblies therefor are described having features for enhanced installation and maintenance. Some embodiments include propellers having enhanced material processing characteristics.

Attrition mills and propeller shaft assemblies therefor are described having features for enhanced installation and maintenance. Some embodiments include propellers having enhanced material processing characteristics.

A stirred bead grinding mill includes a substantially cylindrical grinding shell and a central stirring shaft within the grinding shell. The central stirring shaft is provided with axially spaced stirring elements, preferably grinding discs, along the central stirring shaft. A replaceable grinding element is provided that includes an axial support structure arranged to form the outer periphery of the grinding element adapted to fit within the grinding shell, and at least one counter disc arranged to project radially inward from the axial support structure to an extent separating two grinding zones in an axial direction while allowing the central stirring shaft within the grinding shell, wherein at least part of the counter disc and/or the support structure is provided with castellations.

A stirred bead grinding mill includes a substantially cylindrical grinding shell and a central stirring shaft within the grinding shell. The central stirring shaft is provided with axially spaced stirring elements, preferably grinding discs, along the central stirring shaft. A replaceable grinding element is provided that includes an axial support structure arranged to form the outer periphery of the grinding element adapted to fit within the grinding shell, and at least one counter disc arranged to project radially inward from the axial support structure to an extent separating two grinding zones in an axial direction while allowing the central stirring shaft within the grinding shell, wherein at least part of the counter disc and/or the support structure is provided with castellations.

Provided is a method of separating an inorganic material from crushing balls to which the inorganic material is attached, the method including: a step of causing the crushing balls to collide against a mesh member.

An invention relating to a tensioning device for the belt or chain drive of a stirred ball mill and to a stirred ball mill. The tensioning device includes a tensioning lever which is arranged on a rotatable tensioning foot and which includes a tensioning wheel. A rotatable adjusting disk with a guide contour is arranged on the rotatable tensioning foot. The position of the adjusting disk can be fixed on the machine housing of the stirred ball mill by means of a securing means paired with the guide contour of the adjusting disk. The tensioning device further includes a longitudinally variable tensioning element for rotating the adjusting disk relative to the machine housing of the stirred ball mill.

An invention relating to a tensioning device for the belt or chain drive of a stirred ball mill and to a stirred ball mill. The tensioning device includes a tensioning lever which is arranged on a rotatable tensioning foot and which includes a tensioning wheel. A rotatable adjusting disk with a guide contour is arranged on the rotatable tensioning foot. The position of the adjusting disk can be fixed on the machine housing of the stirred ball mill by means of a securing means paired with the guide contour of the adjusting disk. The tensioning device further includes a longitudinally variable tensioning element for rotating the adjusting disk relative to the machine housing of the stirred ball mill.

An ink mixture is manufactured by mixing carbon, graphite, and solvents in a mixing system which may include a Cowles disperser. The conductive portions (e.g. carbon, graphite) are evenly and universally dispersed, because an even dispersal means the conductivity of the resulting conductive strip (electrode) will be even, consistent, and reliable. The various embodiments of the ink mixture comprise a blend of different conductive pigments, including but not limited to carbon black and graphite. These embodiments must be grinded until below 6.5 Microns in particle size.

A screw shaft for a vertically stirred grinding mill is arranged so as to be accommodated within a grinding chamber of the grinding mill while extending in a longitudinal direction. The screw shaft comprises a central shaft and at least one screw flight surrounding the central shaft, and the central shaft comprises an outer shaft wall defining a cavity within the interior of the central shaft, which cavity is closed at least at one longitudinal end of the central shaft.

A system for a vertical grinding mill. The system includes a longitudinally extending shaft supporting a helical screw flight and at least one adaptor plate configured to be fixedly mounted to the shaft. Each adaptor plate includes at least one first locking member. The system further includes at least one wear segment configured to be supported by the at least one first locking member. Further, a replacement kit, a kit of wear protection elements and a vertical grinding mill is provided.