A process for separating carpet fibers from carpet backing uses a grinder of the type having a rotor with a plurality of vertically spaced cutter discs and a fan disc below the cutter discs. Sections of carpet are fed into the grinder which grinds the carpet, separating the fibers from the backing and breaking the backing into relatively small particles. The grinder is connected with a series of ginning equipment for removing the ground backing from the fibers.

A process for separating carpet fibers from carpet backing uses a grinder of the type having a rotor with a plurality of vertically spaced cutter discs and a fan disc below the cutter discs. Sections of carpet are fed into the grinder which grinds the carpet, separating the fibers from the backing and breaking the backing into relatively small particles. The grinder is connected with a series of ginning equipment for removing the ground backing from the fibers.

A mill includes a generally vertical, rotatable shaft having at least one set of cutter blades driven thereby and a fan assembly mounted on the shaft below the cutter blades in position to receive output therefrom. The fan assembly includes a fan disc secured to the shaft and rotatable therewith. A plurality of fan blades is secured to the fan disc in a generally radial orientation. A terminal portion of the mill includes a gradually, radially expanding outer wall configured in a volute form. The expanded outer wall decreases wear and increases efficiency of discharge and airflow through the mill.

An abrasion resistant wear plate is mountable within a rotor or a vertical shaft impact crusher to protect the rotor from material fed into the rotor. The wear plate includes a main body that mounts and supports at least one abrasion resistant insert to define, in part, a contact face over which feed material is configured to flow.

A mineral material crusher and method of operating a mineral material crusher that includes: a body, a rotating crusher element, a drive shaft arrangement that supports the rotating crusher element to the body and to rotate the rotating crusher element, and a motor including a rotor for driving the drive shaft arrangement. The motor is formed inside the rotating crusher element and the drive shaft arrangement is configured to form of the rotor a rotating axle that is rigidly coupled with the rotating crusher element and capable of leading torque from the rotor to the rotating crusher element for rotating the crusher element around the drive shaft.

Dynamic crusher for treading fruit, particularly grapes, with a treading chamber having, when considering the direction of the path followed by the fruit in the crusher, an upstream fruit-introduction opening, a downstream discharge opening for discharging the must that results from the treading, a rotary ejector that allows kinetic energy to be imparted to the fruit introduced into the treading chamber, and allows the fruit to be cast against a fixed fruit-bursting wall, wherein the rotary ejector is mounted such that it can rotate about a vertical axis and a fixed fruit-bursting wall is positioned around the rotary ejector or facing the peripheral edge thereof against which fruit is cast, rotation of which allows the fruit to be cast, under the effect of centrifugal force, against the fixed fruit-bursting wall, causing the fruit to burst. A method for dynamically treading fruit using such a crusher is also disclosed.

A impact crusher with dual rotors, an upper rotor (30) and a hammer for the impact crusher are disclosed herein. The upper rotor (30) of the impact crusher comprises two discs on top of each other. The upper rotor (30) comprises a plurality of hammers (40) pointing down, to the outer perimeter of the lower rotor (20) discharging the material to be crushed at high speed. Each hammer (40) has a support shaft (41) that extends vertically between the first disc (31) and the second disc (32). The distance between the first disc (31) and the second disc (32) provides torsional structure to the connection between the hammer and the upper rotor (30).