Disc screen for separating solid residues, which includes multiple parallel rotation shafts, each of which carries a plurality of discs fixed thereto. In addition, the disc screen includes multiple shaped rings, which are each constituted by multiple sectors removably mounted around the rotation shafts, and they are placed between the discs in order to simply and easily vary the screening section. The external edge of each shaped ring is provided with thrust sections, which are adapted to intercept the material to be screened in order to subject the latter to a greater stress, which facilitates a more efficient separation of the materials, and push upward components of light and filamentous material so as to prevent possible entangling and obstructions of such materials at the rotation shafts.

A device configured to classify material to be classified, preferably into two fractions, preferably of soil, such as sticky, clayey soil, especially intended for use in a quarry, having a machine frame and having at least two spiral shafts rotatably mounted on the machine frame. At least one spiral shaft includes a core tube having at least one outer screw helix and at least one bearing journal. The core tube is mounted elastically relative to the bearing journal by at least one elastic bearing.

A device configured to classify material to be classified, preferably into two fractions, preferably of soil, such as sticky, clayey soil, especially intended for use in a quarry, having a machine frame and having at least two spiral shafts rotatably mounted on the machine frame. At least one spiral shaft includes a core tube having at least one outer screw helix and at least one bearing journal. The core tube is mounted elastically relative to the bearing journal by at least one elastic bearing.

A screen according to the invention comprises replaceable screen modules A screen module are detachable from the screen as well as replaceable and attachable to the screen. According to an aspect of the invention, the screen comprises a frame and one or more screen modules which are detachable from the frame of the screen, attachable to the frame of the screen, and/or replaceable.

A screen according to the invention comprises replaceable screen modules A screen module are detachable from the screen as well as replaceable and attachable to the screen. According to an aspect of the invention, the screen comprises a frame and one or more screen modules which are detachable from the frame of the screen, attachable to the frame of the screen, and/or replaceable.

A dirt removal and piling machine is ideally suited for use in cleaning and piling individualized and non-uniformly shaped workpieces, preferably sugar beets but also potatoes, other tuber crops, and even with aggregate rocks for a tilting receiving station. A further aspect of the present machine includes a workpiece unloading or receiving station which can tip sideways after a dump truck unloads the workpieces and longitudinally drives therethrough. In another aspect, the machine also includes a cleaning station having rotatable rollers, an underlying dirt conveyor and a moveable dirt dumping conveyor, hopper or bucket adjacent an end of the dirt conveyor and external to the rollers. Furthermore, another aspect of the machine includes an automatic and/or robotic sampling arm which is operable to remove a tuber crop workpiece sample and automatically package the sample after the sample has moved through a cleaning station.

A dirt removal and piling machine is ideally suited for use in cleaning and piling individualized and non-uniformly shaped workpieces, preferably sugar beets but also potatoes, other tuber crops, and even with aggregate rocks for a tilting receiving station. A further aspect of the present machine includes a workpiece unloading or receiving station which can tip sideways after a dump truck unloads the workpieces and longitudinally drives therethrough. In another aspect, the machine also includes a cleaning station having rotatable rollers, an underlying dirt conveyor and a moveable dirt dumping conveyor, hopper or bucket adjacent an end of the dirt conveyor and external to the rollers. Furthermore, another aspect of the machine includes an automatic and/or robotic sampling arm which is operable to remove a tuber crop workpiece sample and automatically package the sample after the sample has moved through a cleaning station.

An axle useable in a disc or star separator screen for waste includes a rotation shaft defining a longitudinal axis, a plurality of discs or stars integrally coupled with the rotation shaft, and a plurality of anti-clogging sleeves mounted idle on the rotation shaft, each of the anti-clogging sleeves being interposed between a respective pair of consecutive discs or stars. Each anti-clogging sleeve has a first rotating element and a second rotating element arranged adjacent to each other, at least one of which is a tubular body. The rotating elements are mounted idle on the rotation shaft so as to rotate independently with respect to each other.

An axle useable in a disc or star separator screen for waste includes a rotation shaft defining a longitudinal axis, a plurality of discs or stars integrally coupled with the rotation shaft, and a plurality of anti-clogging sleeves mounted idle on the rotation shaft, each of the anti-clogging sleeves being interposed between a respective pair of consecutive discs or stars. Each anti-clogging sleeve has a first rotating element and a second rotating element arranged adjacent to each other, at least one of which is a tubular body. The rotating elements are mounted idle on the rotation shaft so as to rotate independently with respect to each other.

The invention relates to a device for sorting out coins (02), in particular elongated parts (06) and/or copper mesh (07), from a bulk of metal, in particular a bulk of heavy metal and/or NE metal, comprising at least one sorting gap (04) for coins (02), each gap being delimited by at least two rollers. The rollers can be rotated about a rotational axis (A) by means of a drive (13) such that objects which cannot be conveyed through the sorting gap (04), in particular NE metal objects or heavy-metal objects, are forced away from the sorting gap (04) either in a direction along the rotational axes (A) or in a direction perpendicular to the rotational axes (A). According to the invention, the rollers are designed as brush rollers (01), and each brush roller has brushes with at least two different lengths. The bulk of metal is supplied to the brush rollers (01) by a supply device (05) such that the bulk of metal is deposited on the brush rollers (01) at least partly in the longitudinal direction of the rotational axes (A) and/or at least partly perpendicularly to a plane formed by the rotational axes (A).