A comminution device for mechanically comminuting material conglomerates consisting of materials of varying density and/or consistency, including a comminution chamber having a supply side with a supply device above the comminution chamber and a discharge side, which comminution chamber is enclosed by a circular cylindrical and/or conical, downwardly widened comminution chamber wall and has at least two portions in succession in the axial direction, in each of which at least one rotor is arranged coaxial with the comminution chamber, each rotor having a rotor shaft and having striking tools which extend substantially radially into the comminution chamber at least during operation, the rotors having opposite directions of rotation in at least two successive portions, deflection ribs being arranged on the inside of the comminution chamber wall at axial intervals and/or the radius of the comminution chamber wall increases from top to bottom.

A comminution device for mechanically comminuting material conglomerates consisting of materials of varying density and/or consistency, including a comminution chamber having a supply side with a supply device above the comminution chamber and a discharge side, which comminution chamber is enclosed by a circular cylindrical and/or conical, downwardly widened comminution chamber wall and has at least two portions in succession in the axial direction, in each of which at least one rotor is arranged coaxial with the comminution chamber, each rotor having a rotor shaft and having striking tools which extend substantially radially into the comminution chamber at least during operation, the rotors having opposite directions of rotation in at least two successive portions, deflection ribs being arranged on the inside of the comminution chamber wall at axial intervals and/or the radius of the comminution chamber wall increases from top to bottom.

A comminution mill is described that includes a vertically oriented cylindrical housing with an intake chute in a top wall and an outlet chute in a bottom wall thereof. A rotatable shaft with a plurality of radially extending cables is disposed coaxially within the cylindrical housing. A plurality of studs extends inwardly from the wall of the housing to slow and collect materials flowing through the comminution mill. The studs can be withdrawn to discharge materials collected thereon. Slits are provided in the walls of the housing to enable the exit of particulate materials from the housing. A hood is provided overlying the slits on the exterior of the comminution mill for collecting the particulate material. Operation of the comminution mill provides a self-generated airflow and can be configured to separate, grind, and dry materials disposed therein.

A comminution mill is described that includes a vertically oriented cylindrical housing with an intake chute in a top wall and an outlet chute in a bottom wall thereof. A rotatable shaft with a plurality of radially extending cables is disposed coaxially within the cylindrical housing. A plurality of studs extends inwardly from the wall of the housing to slow and collect materials flowing through the comminution mill. The studs can be withdrawn to discharge materials collected thereon. Slits are provided in the walls of the housing to enable the exit of particulate materials from the housing. A hood is provided overlying the slits on the exterior of the comminution mill for collecting the particulate material. Operation of the comminution mill provides a self-generated airflow and can be configured to separate, grind, and dry materials disposed therein.

A liner plate is arranged in connection with a material processing handling system, wherein the liner plate includes edge protection. The edge protection has a plurality of primary wear tiles arranged side by side along at least one edge of the plate. The wear tiles have a frontside and a backside including at least one backward protrusion protruding into the plate.

The present disclosure relates to a vertical shaft impact crusher comprising a rotor having a rotor protection layer which consists of particles of objects to be crushed. The rotor includes at least: a rotor upper plate comprising a rotor upper plate hole, which is an inlet for the object for crushing which is inserted into the rotor; a rotor lower plate disposed to be separated from the lower portion of the rotor upper plate; a rotor upper plate; a rotor side wall disposed between the rotor upper plate and the rotor lower plate and coupled to the rotor upper plate and the rotor lower plate, the rotor side wall being disposed at a position spaced from the rotation center of the rotor; and a circular hole which is formed on the rotor side wall and is an outlet for the object for crushing accelerated by the rotor to come out of the rotor.

In a discharge portion liner attachment structure for a vertical shredder including a sweeper supported below a rotor in such a manner as to be coaxial with a rotation shaft, a discharge ring disposed on a circumference portion of the sweeper, and a discharge portion through which a shredding target object that has been swept out through an opening formed on a circumference wall of the discharge ring by a sweeping operation performed by the sweeper is discharged to outside, discharge portion liners are attached in such a manner as to protrude from a side of the discharge portion to a side of the discharge ring in such a manner as to cover edge portions of ones of the discharge ring liners on a side of the opening.

In a discharge portion liner attachment structure for a vertical shredder including a sweeper supported below a rotor in such a manner as to be coaxial with a rotation shaft, a discharge ring disposed on a circumference portion of the sweeper, and a discharge portion through which a shredding target object that has been swept out through an opening formed on a circumference wall of the discharge ring by a sweeping operation performed by the sweeper is discharged to outside, discharge portion liners are attached in such a manner as to protrude from a side of the discharge portion to a side of the discharge ring in such a manner as to cover edge portions of ones of the discharge ring liners on a side of the opening.

A separator may include a housing with a separation space in which a ventilation base is disposed and in which separation stock is perfusable by separation gas so as to separate fine stock from coarse stock. A separation-gas inlet and a separation-stock inlet may open into the separation space, and a fine-stock outlet and a coarse-stock outlet may lead out of the separation space. A bypass duct may be integrated in the housing for bypassing the separation space. The bypass duct may lead out of the separation-gas inlet and open out downstream of the separation space.

A material shredder is provided for shredding recyclable materials. The shredder includes a rotor with multiple cutting blades arranged around its outer surface. These blades have cutting edges that form a cutting circumference. The rotor is enclosed by a housing, creating a cutting chamber between the rotor and stator. Inside this chamber, the cutting blades interact with at least one counter blade mounted on the inner surface of the stator, spaced to form a cutting gap. The stator also includes at least one outlet with a screen that helps define the cutting chamber. The shredder further includes a grinding device with an abrasive holder, located outside the cutting circumference. Both the abrasive and the screen can be moved to adjust their distance from the cutting circumference. The invention also includes a shredding plant with the shredder and a method for maintaining the shredder.