Abstract: A crusher device such as a cone or gyratory crusher is disclosed. The crusher device includes a shaft defining a first direction parallel to its length. The shaft includes an upper shaft end, a crusher head, and an overload safety device that couples the crusher head to the upper shaft end. The overload safety device includes a biasing device configured to bias the crusher head away from the upper shaft end in the first direction. The overload safety device is configured to permit displacement of the crusher head along the first direction relative to the shaft in response to a force acting on the crusher head in the first direction.

Abstract: A dust seal for a cone crusher or gyratory crusher and a cone crusher or gyratory crusher are provided, wherein the crusher includes a stationary part having a dust collar, and a crusher head which is supported so as to be rotatable relative to the stationary part in a crushing direction of rotation and in an idling direction of rotation which is opposite to the crushing direction of rotation. The dust seal has a crusher head contact portion configured for directly or indirectly contacting the crusher head, and a dust collar contact portion configured for directly or indirectly contacting the dust collar crusher head. The dust seal is configured to impart a frictional force between the crusher head and the dust seal via the crusher head contact portion, and/or between the dust collar and the dust seal via the dust collar contact portion upon rotation of the crusher head at least in the idling direction of rotation.

Abstract: An eccentric assembly for use in a gyratory or cone crusher is provided. The gyratory or cone crusher includes a main shaft having a longitudinal extension along a central axis of the crusher, a head assembly including a crushing head provided with a first crushing shell, and a frame provided with a second crushing shell, wherein the first and second crushing shells between them define a crushing gap. The eccentric assembly is provided with an inner circumferential surface and an outer circumferential surface eccentrically arranged relative to the inner circumferential surface, wherein the inner circumferential surface of the eccentric assembly is arranged for being journalled to the main shaft so that the eccentric assembly is adapted to rotate about said central axis, and wherein the outer circumferential surface of the eccentric assembly is arranged for being journalled to the crushing head.

Abstract: A hydrocyclone separator for classifying solid material in liquid suspension is disclosed. The hydrocyclone separator includes a head part having an inlet conduit and a conically tapered separation part. The hydrocyclone separator includes one or more internal edges that disturb the flow of material within the hydrocyclone separator.

Abstract: A pallet car for conveying material to be processed is disclosed. The pallet car includes first and second sidewalls formed from sidewall members that each include a metal frame and a heat-resistant liner, such as formed from refractory. The refractory formed on the metal frame of the sidewall members provides insulation for the metal frame without the need for a hearth layer of pre-processed material in the material bed of the pallet car. The sidewall member including the refractory layer increases the effective volume of the pallet car, which increases the overall efficiency of the furnace and material processing procedure.

Abstract: A gyratory crusher and a spider bushing assembly for supporting a spider bushing within the central hub of a gyratory crusher. The spider bushing assembly includes a spider bushing and a means for adjusting the distance between the outer flange of the spider bushing and a support shoulder formed within the central hub of the spider. The means for adjusting allows the position of the spider bushing within the internal bore of the central hub to change while maintaining an interference fit as a result of wear following use of the gyratory crusher. In one embodiment, one or more annular shims are positioned between the bearing support shoulder of the central hub and the outer flange of the spider bushing. Upon wear, one or more of the shims can be removed to improve the interference fit between the spider bushing and the internal bore formed within the central hub.

Abstract: A hydrocyclone separator for classifying solid material in liquid suspension is disclosed. The hydrocyclone separator includes a head part having an inlet conduit and a conically tapered separation part. The hydrocyclone separator includes one or more internal edges that disturb the flow of material within the hydrocyclone separator.

Abstract: A counterweight for use in a cone crusher that includes an inner oil chamber and an outer oil chamber to collect lubricating oil during operation of the cone crusher. The counterweight includes a vertical separating wall that receives a splash shield. The vertical separating wall and splash shield define an inner oil chamber while an outer oil chamber is defined by the splash shield, the vertical separating wall and an inner wall of the counterweight. Both the inner and outer oil chambers include drain holes that allow lubricating oil to pass through a generally horizontal floor of the counterweight. The combination of the inner and outer oil chambers allows oil to quickly exit the counterweight into the main oil sump and reduces the amount of oil that gets exposed to the upper seal assembly which reduces the passage of oil past seal assemblies formed in the cone crusher.

Abstract: A bowl liner for use in a cone crusher that is comprised of a pair of bowl liner sections joined to each other to define the bowl liner. Each of the bowl liner sections includes first and second ends that engage opposite first and second vertical ends of the second bowl liner section. The first and second ends include key features that limit the axial movement of the first and second bowl liner sections relative to each other. Each of the first and second bowl liner sections further include a radial key and mating key slot to limit the radial movement between the bowl liner sections. The vertical joint between the bowl liner sections includes an inner relief that allows for manganese growth during use of the bowl liner.

Abstract: A hydraulic separation system for use in a gyrational crusher to separate a socket of the crusher from a main shaft. The hydraulic separation system includes one or more hydraulic grooves formed at the interference contact area between the socket and the main shaft. Each hydraulic groove is fed with a supply of pressurized hydraulic fluid to aid in separation of the socket from the main shaft. An inner contact surface of the socket is tapered and engages a tapered outer surface of the main shaft. The mating tapered surfaces further aid in separation of the socket from the main shaft upon application of the pressurized hydraulic fluid.

Abstract: The present invention concerns agitator means for a vertical grinding mill, which includes a screw flight system having a shaft and at least one screw flight. According to the invention the screw flight system is provided in at least two segments, wherein each segment comprises at least one screw flight section integral to a shaft section, and wherein the at least two segments are arranged for assembling to one another to form the screw flight system. The present invention further concerns a vertical grinding mill comprising agitation means according to above, and a construction assembly for agitation means according to above.

Abstract: An adjustment and suspension system for supporting the mainshaft of a gyratory crusher within a stationary spider hub. The system includes a piston movable within the spider hub to adjust the vertical position of the mainshaft. A stop member positioned within the spider hub controls the maximum vertical movement of the piston within the spider hub. A drive assembly is used to adjust the vertical position of the stop member to limit the vertical position of the mainshaft. The mainshaft is supported by a vertical support bearing and a radial support bearing that are located separate from each other. The vertical position of the drive shaft is controlled by a supply of pressurized hydraulic fluid introduced into the spider hub to control the vertical position of the movable piston.

Abstract: A system and method for providing the required clamping force between an adjustment ring and bowl of a gyratory crusher is disclosed. The clamp ring includes a series of clamping cylinder assemblies that each are mounted to a top face of the clamp ring. Each of the clamping cylinder assemblies can be removed and replaced from the top surface of the clamp ring without requiring the removal of the clamp ring from the gyratory crusher. Each clamping cylinder assembly includes a mounting flange that is attached to the clamp ring through a series of connectors.

Abstract: A counterweight for use in a cone crusher that includes an inner oil chamber and an outer oil chamber to collect lubricating oil during operation of the cone crusher. The counterweight includes a vertical separating wall that receives a splash shield. The vertical separating wall and splash shield define an inner oil chamber while an outer oil chamber is defined by the splash shield, the vertical separating wall and an inner wall of the counterweight. Both the inner and outer oil chambers include drain holes that allow lubricating oil to pass through a generally horizontal floor of the counterweight. The combination of the inner and outer oil chambers allows oil to quickly exit the counterweight into the main oil sump and reduces the amount of oil that gets exposed to the upper seal assembly which reduces the passage of oil past seal assemblies formed in the cone crusher.

Abstract: A two-piece locking nut assembly for securing a mantle to a head assembly of a cone crusher. The two-piece locking nut assembly includes an inner nut and an outer nut. The inner nut includes a set of axial bores that each receive a jackscrew. Once the locking nut assembly is in position on the head assembly, the series of jackscrews are tightened to exert a force on the mantle that is counteracted by forces through the inner nut and into the head to create a locking force between the locking nut assembly and the head assembly. The outer nut is turned along the inner nut to hold the locking nut assembly in place. Once the outer nut is moved into position, the jackscrews are removed such that the outer nut continues to apply the locking force between the mantle and the head through the locking nut assembly.

Abstract: The disclosure relates to a monitoring device for monitoring a surface of a roll of a roller crusher. The monitoring device includes a light emitter arranged to project a line on the surface of the roll, an image capturing device arranged to capture an image of a portion of the surface, the portion including at least a part of the projected line, and a processor unit arranged to process the image to determine information about the surface. The disclosure also relates to a high pressure roller crusher, a sizer, a use of a monitoring device, a method for monitoring a surface of a roll of a roller crusher, and a computer program.

Abstract: The invention relates to an energy harvester for converting vibrational motion of a vibrating equipment into electrical energy. The energy harvester comprises a pendulum arranged to be pivotably attached to said vibrating equipment, a motion limiter arranged to limit a pivoting motion of said pendulum, and a generator connected to said pendulum and arranged to convert said pivoting motion into electrical energy. The vibrational motion has an operating frequency, and said pendulum has a natural frequency different from said operating frequency. The invention also relates to a device for monitoring the operation of a vibrating equipment.

Abstract: A hydraulic separation system for use in a gyrational crusher to separate a socket of the crusher from a main shaft. The hydraulic separation system includes one or more hydraulic grooves formed at the interference contact area between the socket and the main shaft. Each hydraulic groove is fed with a supply of pressurized hydraulic fluid to aid in separation of the socket from the main shaft. An inner contact surface of the socket is tapered and engages a tapered outer surface of the main shaft. The mating tapered surfaces further aid in separation of the socket from the main shaft upon application of the pressurized hydraulic fluid.

Abstract: An adjustment and suspension system for supporting the mainshaft of a gyratory crusher within a stationary spider hub. The system includes a piston movable within the spider hub to adjust the vertical position of the mainshaft. A stop member positioned within the spider hub controls the maximum vertical movement of the piston within the spider hub. A drive assembly is used to adjust the vertical position of the stop member to limit the vertical position of the mainshaft. The mainshaft is supported by a vertical support bearing and a radial support bearing that are located separate from each other. The vertical position of the drive shaft is controlled by a supply of pressurized hydraulic fluid introduced into the spider hub to control the vertical position of the movable piston.

Abstract: A split mainframe for use in a cone crusher that includes an upper mainframe and a lower mainframe joined to each other. The upper mainframe is positioned between the lower mainframe and adjustment ring. A series of tramp release cylinders extend between an upper flange formed on the lower mainframe and an attachment flange formed on the adjustment ring. The series of tramp release cylinders compress the upper mainframe between the adjustment ring and the lower mainframe. The series of hydraulic tramp release cylinders create a compression force that prevents cyclic tension during crushing for the fasteners used to secure the lower mainframe to the upper mainframe.