A jaw crusher having a movable jaw support frame configured to facilitate interchange between shim and wedge settings. The support frame is configured specifically to minimize stress concentrations and to provide the time efficient interchange between wedge and shim settings without a need to weld, cut and machine regions of the support frame.

A jaw crusher having a movable jaw support frame configured to facilitate interchange between shim and wedge settings. The support frame is configured specifically to minimize stress concentrations and to provide the time efficient interchange between wedge and shim settings without a need to weld, cut and machine regions of the support frame.

A jaw crusher retraction assembly having a base, a first and second mount boss, a resiliently biased component and an actuating cylinder. The cylinder and resiliently biased component are mounted axially between respective regions of the base and the first and second bosses so as to minimize stress in the retraction assembly components and to provide a compact overall design.

A jaw crusher retraction assembly having a base, a first and second mount boss, a resiliently biased component and an actuating cylinder. The cylinder and resiliently biased component are mounted axially between respective regions of the base and the first and second bosses so as to minimize stress in the retraction assembly components and to provide a compact overall design.

A method and a system for supporting a frame of a mineral material crusher on a body of a crushing plant and a mineral material processing plant. The crusher frame is supported by first support devices in place in relation to the body of the crushing plant at first support points and by at least two second support devices at second support points. The second support device has an adjusting member between the crusher frame and the body of the crushing plant, and at least one second support device is configured to move the frame of the crusher vertically in relation to the body of the crushing plant. The adjusting member has a cylinder and a piston inside the cylinder which define an adjusting volume therebetween. A pressure is formed from a load above the adjusting member and is arranged to form into the adjusting volumes of the adjusting members.

A rock crushing device includes a housing with a plurality of walls defining a chamber that has an upper inlet and a lower outlet. At least one of the walls is movable relative to another wall to define a primary compression assembly for crushing rocks within the chamber via mechanical force. There is an auxiliary crushing assembly connected with at least one of the walls to deliver a vibratory force to at least one wall for crushing rocks within the chamber. The auxiliary crushing assembly is operable together with the primary compression assembly or independent of it.

A rock crushing device includes a housing with a plurality of walls defining a chamber that has an upper inlet and a lower outlet. At least one of the walls is movable relative to another wall to define a primary compression assembly for crushing rocks within the chamber via mechanical force. There is an auxiliary crushing assembly connected with at least one of the walls to deliver a vibratory force to at least one wall for crushing rocks within the chamber. The auxiliary crushing assembly is operable together with the primary compression assembly or independent of it.

Polycrystalline silicon fragments obtained by fracturing polycrystalline silicon blocks wherein a content ratio of polycrystalline silicon powder having a particle size of 500 to 1000 m is 0.1 to 40 ppmw.

Polycrystalline silicon fragments obtained by fracturing polycrystalline silicon blocks wherein a content ratio of polycrystalline silicon powder having a particle size of 500 to 1000 m is 0.1 to 40 ppmw.

A jaw crusher assembly comprising a jaw crushing apparatus and a service platform. The jaw crushing apparatus having first and second opposing jaws, each opposing jaw having a crushing face. The crushing faces opposing each other in an oblique relationship when the opposing jaws are in an at least partially opened state. The service platform provides at least two service configurations within the opposing jaws and being operable between a first service configuration and a second service configuration by rotation of the service platform.