The invention relates to a charging unit of a material processing apparatus having a charging hopper, the side walls (22) and rear walls (23) of which can be folded over between a working and a transport position by means of actuators (40, 50). A deflection element is provided, which converts the movement of an actuator during a portion of a movement thereof into a rotational movement of the rear wall or of the side wall and, during a further portion, into a translational movement. As a result of the rotational movement, the rear and side wall can be pivoted between the working and transport position, while by means of the translational movement, the rear and side wall can be connected to each other by means of an appropriate closure (60). By means of the deflection element, a simple, self-securing, and economical structure of the charging hopper is made possible.

The invention relates to a conveyor belt arrangement of a material processing device having a conveyor belt (20) and a receiving and adjustment mechanism for adjusting the conveyor belt between a transport position and a working position. To this end, the conveyor belt is mounted on bearing elements (40, 60), which are rotatably connected to receiving elements (30, 50) of the receiving and adjusting mechanism. According to the invention, the receiving elements are each coupled to a pivot bearing each having a pivot axis (30.1, 50.1) for the pivotable attachment to the material processing device, and at least one bearing element is connected to the conveyor belt in a linearly adjustable manner, and/or between the conveyor belt and the pivot bearing of at least one receiving element, a compensating mechanism is provided, by means of which a spacing change between the bearing elements can be compensated for. The conveyor belt arrangement allows the simple adjustment of the conveyor belt of a material processing device between a working position and a transport position.

A manoueverable crushing and screening system (50) is disclosed. The manoueverable crushing and screening system (50) comprises of a chassis (52) with a manoueverable undercarriage (58). The system (50) also comprises of a crushing unit (53) mounted at one end of the chassis (52) and a screening unit (51) that is mounted on the other end of the chassis (52). A steep angle conveyor (55) is configured between the crushing unit (53) and the screening unit (51) and the steep angle conveyor (55) is operable between a first position (A) and a second position (B). In the first position (A), the steep angle conveyor (55) conveys crushed material from the crushing unit (53) to the screening unit (51). This configuration of the system reduces operating length of equipment and also reduces length of the plant.

A manoueverable crushing and screening system (50) is disclosed. The manoueverable crushing and screening system (50) comprises of a chassis (52) with a manoueverable undercarriage (58). The system (50) also comprises of a crushing unit (53) mounted at one end of the chassis (52) and a screening unit (51) that is mounted on the other end of the chassis (52). A steep angle conveyor (55) is configured between the crushing unit (53) and the screening unit (51) and the steep angle conveyor (55) is operable between a first position (A) and a second position (B). In the first position (A), the steep angle conveyor (55) conveys crushed material from the crushing unit (53) to the screening unit (51). This configuration of the system reduces operating length of equipment and also reduces length of the plant.

A control method of a treatment plant for elements to be recycled or disposed of, having a crushing roll to reduce the size of the elements to be recycled or disposed of, and a screen operatively arranged upstream of the crushing roll to enable passage therethrough only of elements having a size larger than a predetermined size, includes the steps of measuring the current absorbed by the crushing roll; comparing the measured current value to a first predetermined value; and reducing the vibrations of the screen, if the measured current exceeds the first predetermined value.

A control method of a treatment plant for elements to be recycled or disposed of, having a crushing roll to reduce the size of the elements to be recycled or disposed of, and a screen operatively arranged upstream of the crushing roll to enable passage therethrough only of elements having a size larger than a predetermined size, includes the steps of measuring the current absorbed by the crushing roll; comparing the measured current value to a first predetermined value; and reducing the vibrations of the screen, if the measured current exceeds the first predetermined value.

A material processing machine for material reducing operations. The material processing machine comprises an infeed system, a reducing system, and a discharge system. The reducing system comprises a rotor having processing tools to reduce the material within a reducing chamber. A colorizer system directs colorant from a colorant source towards the material reducing system within an outlet zone. The colorant colorizes the material being reduced within an inlet zone. The reduced material may be discharged through one or more screens within the outlet zone such that negligible colorant is applied directly to the reduced material. The material reducing operations may comprise a two-stage reducing operation in which the colorizer system is inoperable for the first stage and operable for the second stage. The screens may be selectively interchangeable between stages to incrementally reduce the material to provide substantially uniform colorizing and material size.

A material processing machine for material reducing operations. The material processing machine comprises an infeed system, a reducing system, and a discharge system. The reducing system comprises a rotor having processing tools to reduce the material within a reducing chamber. A colorizer system directs colorant from a colorant source towards the material reducing system within an outlet zone. The colorant colorizes the material being reduced within an inlet zone. The reduced material may be discharged through one or more screens within the outlet zone such that negligible colorant is applied directly to the reduced material. The material reducing operations may comprise a two-stage reducing operation in which the colorizer system is inoperable for the first stage and operable for the second stage. The screens may be selectively interchangeable between stages to incrementally reduce the material to provide substantially uniform colorizing and material size.

A waste shredding device including at least one shredding shaft; an internal combustion engine; a first and a second powertrain between the internal combustion engine and the shredding shaft; at least one energy converter coupled to the internal combustion engine in the first powertrain for converting mechanical energy of the internal combustion engine into storable energy; and at least one auxiliary motor supplied with the storable energy in the first powertrain for introducing mechanical energy into the first powertrain. The waste shredding device additionally includes an energy store for storing at least part of the storable energy in the event of periods with low power demand and for at least partially supplying the at least one auxiliary motor with the storable energy in the event of periods of high power demand.

A waste shredding device including at least one shredding shaft; an internal combustion engine; a first and a second powertrain between the internal combustion engine and the shredding shaft; at least one energy converter coupled to the internal combustion engine in the first powertrain for converting mechanical energy of the internal combustion engine into storable energy; and at least one auxiliary motor supplied with the storable energy in the first powertrain for introducing mechanical energy into the first powertrain. The waste shredding device additionally includes an energy store for storing at least part of the storable energy in the event of periods with low power demand and for at least partially supplying the at least one auxiliary motor with the storable energy in the event of periods of high power demand.