An apparatus including a rotor position detection unit with a sensor configured to detect an angular position of a rotor of a horizontal shaft impact crusher, the rotor having attached thereon a group of hammers. A motor control system is configured to change the rotation speed of the rotor and an automation and control system is configured to control the motor control system in response to the detected angular position of the rotor. The rotor position detection unit is configured to detect a first and second angular position of the rotor corresponding to a first and second position of a hammer of the group of hammers attached to the rotor. The motor control system comprises a frequency converter and a brake configured to enable the stopping of the rotor.

An apparatus including a rotor position detection unit with a sensor configured to detect an angular position of a rotor of a horizontal shaft impact crusher, the rotor having attached thereon a group of hammers. A motor control system is configured to change the rotation speed of the rotor and an automation and control system is configured to control the motor control system in response to the detected angular position of the rotor. The rotor position detection unit is configured to detect a first and second angular position of the rotor corresponding to a first and second position of a hammer of the group of hammers attached to the rotor. The motor control system comprises a frequency converter and a brake configured to enable the stopping of the rotor.

An abrasion resistant distributor plate assembly mountable within a rotor of a vertical shaft impact crusher to protect the rotor from abrasive wear caused due to material falling on to the rotor. The distributor plate assembly includes a main body, wear-resistant inserts mounted on the main body having a wear resistance greater than the main body, and an elevated central component directly mounted on the main body, which has a wear resistance greater than that of the inserts.

A blow bar for inserting in a holder of a rotor of an impact crusher defines a longitudinal axis in a z-direction, a vertical axis in a y-direction, and a transverse axis in a x-direction. The blow bar includes two rectangular heads respectively arranged at upper and lower ends of the blow bar and defining there between a middle region, in which the longitudinal axis centrally determines a position of a y-z plane. Each head has side surfaces extending parallel to the y-z plane and parallel at a first spacing to define a thickness between the side surfaces. The two heads are situated offset to the y-z plane in opposite direction by a second spacing in the transverse direction, thereby forming support shoulders in a transition to the middle region. The middle region has a thickness which is not less than the first spacing of the side surfaces.

A plant for shredding metal waste, comprising at least one working chamber, means for shredding metal waste and motor means operatively connected to the shredding means. The plant further comprising sensor means operatively associated with the motor means and/or shredding means for monitoring at predetermined time intervals at least one working parameter connected to the wear thereof, and at least one data processing unit operatively connected to the sensor means. The data processing unit including: data storage means for storing for a predetermined period of time the values of said at least one working parameter detected by said sensor means and an an artificial intelligence software program so as to allow the plant manager to plan the maintenance of the motor means and/or shredding means.

A plant for shredding metal waste, comprising at least one working chamber, means for shredding metal waste and motor means operatively connected to the shredding means. The plant further comprising sensor means operatively associated with the motor means and/or shredding means for monitoring at predetermined time intervals at least one working parameter connected to the wear thereof, and at least one data processing unit operatively connected to the sensor means. The data processing unit including: data storage means for storing for a predetermined period of time the values of said at least one working parameter detected by said sensor means and an an artificial intelligence software program so as to allow the plant manager to plan the maintenance of the motor means and/or shredding means.

The invention relates to a system for changing the hammers of a shredder including a shredder with one or more covers and a rotating drum equipped with a plurality of hammers; a lifting system suitable to move said hammers and a control unit which controls both the opening of the shredder and the movements of the lifting system and preferably also the unlocking/locking of the hammers from/on the drum to allow their replacement. The system can be managed hydraulically with a single hydraulic supply. It is included to be able to control the system remotely or to include its automation according to a maintenance plan. A relative method for changing the hammers of a shredder is also disclosed.

The invention relates to a system for changing the hammers of a shredder including a shredder with one or more covers and a rotating drum equipped with a plurality of hammers; a lifting system suitable to move said hammers and a control unit which controls both the opening of the shredder and the movements of the lifting system and preferably also the unlocking/locking of the hammers from/on the drum to allow their replacement. The system can be managed hydraulically with a single hydraulic supply. It is included to be able to control the system remotely or to include its automation according to a maintenance plan. A relative method for changing the hammers of a shredder is also disclosed.

The present invention relates to a device for treatment of a material mixture consisting of substitute fuel and impurities, having a vertically aligned central feeder (1), a separating device (2) arranged underneath the central feeder (1), a rotor mill (3), wherein the rotor mill (3) is arranged above the separating device (2) and surrounds the central feeder (1), a flow device (4) for generating an upwardly directed gas flow, wherein the rotor mill (3) has several tools (8a, 8b) arranged offset relative to each other vertically and in the circumferential direction.

A rotor positioning device in a crusher is arranged to adjust a rotational position of a rotor shaft. A shaft engager includes a female toothed mating surface for coaxial engagement with a male mating surface at an end of the rotor shaft, so they become rotationally interlocked. The shaft engager includes alignable indicator slots that are, when in use, alignable with markings associated with an end of the rotor shaft, such that the markings become visible through the slots as the rod is rotationally driven by a drive component. The markings correspond to hammer positions within the crusher, such that these can be maneuvered for maintenance (e.g. to top dead-center positions) before access to the crusher chamber is gained.