The invention relates to a drive system for driving a crusher of a material crusher plant having a main drive and a power transfer unit driven by the main drive, wherein the power transfer unit drives at least one generator and a first hydraulic pump which is connected to the power transfer unit in a shiftable manner. It is provided that a shiftable fluid coupling is installed in the transmission path from the power transfer unit to the crusher, that the shiftable fluid coupling and a pump are interconnected in a fluid conveying manner in a pump circuit and that a fluid can be supplied to the shiftable fluid coupling by means of the pump.

The invention further relates to a method for operating such a crusher.

The drive system permits a gentle operation of the crusher at a small number of required components.

A mulching apparatus including: a housing including a front opening and an inner wall; a rotor mounted in the front opening of the housing adjacent to the inner wall; and a liner mounting system for mounting a replaceable wear liner between the rotor and the inner wall, the liner mounting system including: an upper mounting provided at an upper edge of the inner wall, the upper mounting configured to releasably connect with the wear liner; and a lower mounting provided at a lower edge of the inner wall, the lower mounting configured to support the wear liner against the upper mounting and secure the wear liner to the inner wall.

A mulching apparatus including: a housing including a front opening and an inner wall; a rotor mounted in the front opening of the housing adjacent to the inner wall; and a liner mounting system for mounting a replaceable wear liner between the rotor and the inner wall, the liner mounting system including: an upper mounting provided at an upper edge of the inner wall, the upper mounting configured to releasably connect with the wear liner; and a lower mounting provided at a lower edge of the inner wall, the lower mounting configured to support the wear liner against the upper mounting and secure the wear liner to the inner wall.

A dual-purpose grinder and an operating method thereof. The grinder includes a material container assembly. The material container assembly includes a grinding head (12, 27) fixedly connected to a material container body (10, 20), and a grinding sleeve (15, 26) rotatably connected to the grinding head; the grinding head is fitted in the grinding sleeve, and the grinding head and the grinding sleeve define therebetween a material compartment for accommodating materials; and a connecting structure capable of being connected to an external power assembly is arranged at an upper end of the material container body. According to the dual-purpose grinder, the material container assembly can be individually used to enable manual grinding, the material container assembly can also be combined with the external power assembly to form an automatic grinder, the grinding head and the grinding sleeve move relative to each other by rotation of the material container body.

A dual-purpose grinder and an operating method thereof. The grinder includes a material container assembly. The material container assembly includes a grinding head (12, 27) fixedly connected to a material container body (10, 20), and a grinding sleeve (15, 26) rotatably connected to the grinding head; the grinding head is fitted in the grinding sleeve, and the grinding head and the grinding sleeve define therebetween a material compartment for accommodating materials; and a connecting structure capable of being connected to an external power assembly is arranged at an upper end of the material container body. According to the dual-purpose grinder, the material container assembly can be individually used to enable manual grinding, the material container assembly can also be combined with the external power assembly to form an automatic grinder, the grinding head and the grinding sleeve move relative to each other by rotation of the material container body.

A material reducing apparatus includes a reducing head that includes a rotary reducing component that carries a plurality of cutters. The reducing head includes a thrown object deflector positioned proximate the rotary reducing component. The thrown object deflector is configured to limit at least one of a distance and a direction that objects can be thrown by the rotary reducing component.

A material reducing apparatus includes a reducing head that includes a rotary reducing component that carries a plurality of cutters. The reducing head includes a thrown object deflector positioned proximate the rotary reducing component. The thrown object deflector is configured to limit at least one of a distance and a direction that objects can be thrown by the rotary reducing component.

A machine such as a material processing apparatus comprises a mechanical transmission system coupled to a mechanical load such as a crusher. An internal combustion engine is coupled to the mechanical transmission system, and at least one motor-generator is coupled to an electrical system and to the mechanical transmission system. In at least one mode of operation, the electrical system delivers electrical power to the motor-generator(s), the motor-generator(s) generating mechanical power from the electrical power and delivering the mechanical power to the mechanical transmission system to drive the mechanical load.

An impact crusher for grinding and separating solid material has a base, a rotor on the base having an upright shaft defining an upright rotor axis about which the rotor is rotatable, and a drum fixed on the base, spacedly surrounding the rotor, and formed by a pair of generally semicylindrical drum shells fitted together at a plane including the rotor axis. An array of axially extending and angularly substantially equispaced replaceable ribs is provided on an inner surface of the drum. A plurality of impact hammers are angularly substantially equispaced around the rotor and orbitable past the ribs on rotation of the rotor.

A mill includes a housing with a first end portion, a second end portion, and a lateral area disposed therebetween. The housing includes a raw material inlet, an air inlet, a recirculated material inlet, and a material outlet. An impeller is supported by the housing and includes a shaft disposed along the longitudinal axis of the housing, with a plurality of curved blades.