A material reducing machine includes a rotary reducing drum that is rotatable about an axis of rotation and defines a reducing boundary that extends at least partially around the axis of rotation. The material reducing machine includes an infeed conveyor for transporting material to a front portion of the rotary reducing drum and defines a conveyor plane. The material reducing machine includes a mill box at least partially surrounding the rotary reducing drum and including a mill box lid mounted generally above the rotary reducing drum. The mill box lid has an inlet edge positioned above a rear portion of the rotary reducing drum and an outlet edge positioned above the front portion of the rotary reducing drum. The mill box includes an infeed opening that is configured to receive material from a feed table and has an upper opening defined by the outlet edge of the mill box lid.

A vacuum cylinder shredder for lawn debris using at least one string trimmer assembly and a collection mat.

A vacuum cylinder shredder for lawn debris using at least one string trimmer assembly and a collection mat.

A crusher includes a housing having an inlet and an outlet at opposite axial sides, an impeller positioned proximate the inlet of the housing, a shaft connected to the impeller and extending axially through the housing between the inlet and the outlet, at least two spaced apart support structures holding the shaft in the housing, a plurality of dynamic blades extending outwardly from the shaft, and a plurality of fixed blades extending radially inward from an inner wall of the housing and alternatingly positioned between the dynamic blades.

A crusher includes a housing having an inlet and an outlet at opposite axial sides, an impeller positioned proximate the inlet of the housing, a shaft connected to the impeller and extending axially through the housing between the inlet and the outlet, at least two spaced apart support structures holding the shaft in the housing, a plurality of dynamic blades extending outwardly from the shaft, and a plurality of fixed blades extending radially inward from an inner wall of the housing and alternatingly positioned between the dynamic blades.

To enable an impact applying member to efficiently crush an object to be crushed, a rotary crushing apparatus includes an impact applying member that is connected to a rotating shaft and crushes a processing object by means of rotation of the rotating shaft. The apparatus also includes a feeding device that feeds the processing object to the impact applying member in such a way that an axis direction of conveyance of the processing object is substantially identical to an axis direction of rotation of the impact applying member.

To enable an impact applying member to efficiently crush an object to be crushed, a rotary crushing apparatus includes an impact applying member that is connected to a rotating shaft and crushes a processing object by means of rotation of the rotating shaft. The apparatus also includes a feeding device that feeds the processing object to the impact applying member in such a way that an axis direction of conveyance of the processing object is substantially identical to an axis direction of rotation of the impact applying member.

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 unit (2) arranged underneath the central feeder (1), a rotor mill (3), wherein the rotor mill (3) is arranged above the separating unit (2) and surrounds the central feeder (1), a flow device (4) for generating an upwardly directed gas flow, wherein the rotor mill (3) has a multistage design, and a respective separating device (6) is arranged between the stages (5.1, 5.2) of the rotor mill (3), wherein material mixture not held back by the separating device (6) is further comminuted in the following stage (5.2).

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 unit (2) arranged underneath the central feeder (1), a rotor mill (3), wherein the rotor mill (3) is arranged above the separating unit (2) and surrounds the central feeder (1), a flow device (4) for generating an upwardly directed gas flow, wherein the rotor mill (3) has a multistage design, and a respective separating device (6) is arranged between the stages (5.1, 5.2) of the rotor mill (3), wherein material mixture not held back by the separating device (6) is further comminuted in the following stage (5.2).

Discretizers that exhibit improved solid additive laden fluid flow emanating from the discretizers and methods of using same, particularly for making fibrous structures are provided.