The invention relates to a high-pressure roller press (1), in particular a material bed roller mill or a compacting machine, comprising two press rollers (3, 4) which are rotatably mounted in a press frame (2) and are driven in opposite directions and between which a pressure zone (5) is formed with a rolling gap (S) arranged at the height of the roller axis (X, X′), the gap width (W) of said rolling gap being variable during the operation of the roller press (1), wherein the pressure zone (5) between the press rollers (3, 4) is delimited at the roller end faces by delimiting plates (8) arranged laterally next to the press rollers (3, 4), and the delimiting plates (8) are secured to the press frame (2) in a movable manner and under the application of a force such that the delimiting plates (8) can be pushed back against the applied force during the operation of the roller press (1). The invention is characterized in that an individual roller (10) is secured to each delimiting plate (8) at the height of the rolling gap (S), said roller being rotatably mounted about the roller axis (Y) of the roller and laterally delimiting the rolling gap (S).

The application relates to a double acting demolition device according to one embodiment for demolishing structures. The device includes a first crushing jaw for crushing operation, a first cutting jaw for cutting operation, and a combination jaw. The first jaws are separate jaws. The combination jaw is attachable to the first cutting jaw for constructing a second crushing jaw and to the first crushing jaw for constructing a second cutting jaw. The second crushing jaw is used jointly with the first crushing jaw in crushing operation and the second cutting jaw is used jointly with the first cutting jaw in cutting operation. In crushing operation, the first crushing jaw rotates around a fulcrum other than that of the second cutting jaw in cutting operation.

A concrete/steel structure disassembling apparatus which comprises a triangular or T-shaped housing, and a suspension member is pivotably coupled to the triangular or T-shaped housing, and the suspension facilitates suspension of the triangular or T-shaped housing from a crane. At least a concrete/steel pulverizer apparatus is pivotably supported by the triangular or T-shaped housing, and the concrete/steel pulverizer apparatus comprises a pair of concrete/steel pulverizer arms for engaging with a desired section of a concrete/steel structure and pulverizing the same. The concrete/steel structure disassembling apparatus incorporates its own completely independent power module for supplying hydraulic power to the concrete/steel pulverizer apparatus and controlling operation of the at least one pair of concrete/steel pulverizer arms, and the power module is supported by the triangular or T-shaped housing.

The invention relates to a method for setting an operating state of at least one mobile mineral machining plant, in particular a mobile mineral material crusher (10), wherein a processing device (100) is provided, to which an input unit (90) is assigned, wherein at least one characteristic material value of the feed material (KM) to be machined is entered into the input unit (90), wherein at least one characteristic material value (KE) of at least one end material to be produced using the mineral machining plant is entered into the input unit (90), wherein a target machine parameter (SP) or a target machine parameter set containing several target machine parameters (SP) is generated in the processing device (100), taking into account the characteristic material value of the feed material (KM) to be machined and the characteristic material value of the end material (KE) to be produced, and wherein the at least one target machine parameter (SP) or the target machine parameter set is transferred to a control device (130) of the mineral machining plant and/or displayed on a display device. Such a process significantly facilitates adapting the mineral machining plant to changing crushing tasks for a machine operator.

A concrete/steel structure disassembling apparatus which comprises a triangular or T-shaped housing, and a suspension member is pivotably coupled to the triangular or T-shaped housing, and the suspension facilitates suspension of the triangular or T-shaped housing from a crane. At least a concrete/steel pulverizer apparatus is pivotably supported by the triangular or T-shaped housing, and the concrete/steel pulverizer apparatus comprises a pair of concrete/steel pulverizer arms for engaging with a desired section of a concrete/steel structure and pulverizing the same. The concrete/steel structure disassembling apparatus incorporates its own completely independent power module for supplying hydraulic power to the concrete/steel pulverizer apparatus and controlling operation of the at least one pair of concrete/steel pulverizer arms, and the power module is supported by the triangular or T-shaped housing.

Apparatus and method for recovering precious metals from contaminated cement, comprising, in order of process, a crusher, in which a cement-metal conglomerate is placed, a sieve, a dispenser, a first container, suitable for collecting the metal on the bottom through the action of a magnetic stirrer, an expander, a second container, a drainage tank, and a sieve. The present invention relates in particular to the recovery of precious metal from the batch of cement contaminated by precious metals, such as platinum, rhodium, gold, or silver. In the production of glass fibers for reinforcement, dies made of an alloy of precious metals, in particular platinum and rhodium, are used. These dies are supported by a special cement structure. During the months of production life of the die, part of the precious metal diffuses into the cement on account of the high temperatures. Given the value of the metals, it is economically advantageous to recover them from the supporting cement at each change of the die.

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 crusher for elements to be recycled or disposed of, which includes a crushing assembly, to which the elements to be recycled or disposed of are provided, and pushers acting toward the crushing assembly to push the elements to be recycled or disposed of, includes a measuring step of the current absorbed by the crusher, a comparing step of the current value measured against a first predetermined value, and a reducing step of the push intensity of one or more of the pushers toward the crushing assembly in case the measured current exceeds the first predetermined value, the pushers being controlled separately from each other in order to partialize the push force and the push areas.

The invention relates to a crusher (10), in particular a rock crusher, having a crusher unit (40), to which a band conveyor unit (60) having an endlessly circulating band conveyor is indirectly or directly assigned, wherein a magnetic separator (70) having a magnet (79) is held in the area of the band conveyor unit (60) above the band conveyor in the direction opposite from the direction of gravity,

and wherein an adjustment unit (80) is provided, which can be used to change the height of the magnet (79) above the band conveyor. To enable the reliable operation of such a crusher, it is provided according to the invention that the magnetic separator (70) is suspended from at least two limp ties (81, 82, 84, 85), and that the limp ties (81, 82, 84, 85) can be adjusted by means of at least one actuator unit (90) to change the height of the magnet (79).

A material-bed roller mill including two adjacently arranged rollers which are oriented in an axially parallel manner and which rotate in opposite directions and between which a roller gap is formed, a foundation, two roller mountings, in each of which a roller is rotatably mounted, each roller mounting being secured to the foundation in a pivotal manner; and a clamping device. The clamping device is arranged outside of the roller gap and connects the two roller mountings. Each roller mounting has two rockers which are designed as separate components and each of which is arranged at an end of a roller and can be deflected independently of the other.