Abstract: A restraint apparatus, a horizontal shaft crusher including the restraint apparatus and a method for controlling access to a crushing chamber of the horizontal shaft crusher. The first restraint has an operation mode and a service mode for respectively blocking and allows opening a service hatch for accessing the crushing chamber. A second restraint has an operation mode and a service mode for respectively not controlling the horizontal shaft and controlling the horizontal shaft. The first and second restraints are mutually exclusively usable in the operation mode so that the crushing chamber is not accessible through the service hatch unless the second restraint is controlling the horizontal shaft.

Abstract: The invention concerns a mobile processing device having a material processing unit, such as a mobile crusher having a crusher unit or a mobile screen having a material screening unit. The mobile processing device comprises a power unit, a frame and a noise encapsulation for the material processing unit. The noise encapsulation is attached to the frame and comprises two cover elements, each of which is pivotable between an open position providing access to the crusher unit and a closed position wherein the cover elements can be interconnected to create an encapsulation for the material processing unit.

Abstract: A system for recovering antifreeze from a dust prevention system of a mineral material processing plant, wherein the system includes an antifreeze tank, a pump configured to circulate water and/or antifreeze, a first valve configured to connect to a water inlet and/or antifreeze tank to the pump, a nozzle manifold connected to the pump, a second valve configured to connect the nozzle manifold to the antifreeze tank and/or a third valve, and a control system. The control system is configured to operate the system according to a method including the steps of sucking water using a pump from a water inlet via a first valve, displacing the antifreeze via a nozzle manifold into an antifreeze tank until the water reaches a second valve, and connecting the second valve to a third valve to allow circulation of water in the system.

Abstract: The invention concerns a mobile processing device having a material processing unit, such as a mobile crusher having a crusher unit or a mobile screen having a material screening unit. The mobile processing device comprises a power unit, a frame and a noise encapsulation for the material processing unit. The noise encapsulation is attached to the frame and comprises two cover elements, each of which is pivotable between an open position providing access to the crusher unit and a closed position wherein the cover elements can be interconnected to create an encapsulation for the material processing unit.

Abstract: A maintenance platform of a jaw crusher having an adapter part that engages a first wear part when in place in a jaw crusher cavity. The platform includes a support part that engages a second wear part when the maintenance platform is in the jaw crusher cavity. The platform further includes a platform part residing between the adapter part and the support part. The platform part has a face section that engages the adapter part and a central section that extends apart from the face section towards the support part. The platform part defines at least two grooves each extending from the central section to the face section. The adapter part joins to the platform part by hand screws or nuts through the grooves. The grooves are shaped such that the platform part is separable from the adapter part after untightening while maintaining in place the hand screws or nuts.

Abstract: In a mineral material processing method, mineral material is processed in a mineral material processing plant. Heat generated in heat sources of the processing plant and/or fuel used in a motor of the processing plant is cooled in a cooler of the processing plant. The cooler is equipped with a blower. Wetting water is directed to the mineral material for binding dust generated in the processing. Heat of at least one heat source of the processing plant and/or heat of the fuel is transferred to the wetting water before using the wetting water for dust binding. The wetting water is directed, before the dust binding, to a first heat exchanger for receiving heat in the wetting water.

Abstract: A system for recovering antifreeze from a dust prevention system of a mineral material processing plant, wherein the system includes an antifreeze tank, a pump configured to circulate water and/or antifreeze, a first valve configured to connect to a water inlet and/or antifreeze tank to the pump, a nozzle manifold connected to the pump, a second valve configured to connect the nozzle manifold to the antifreeze tank and/or a third valve, and a control system. The control system is configured to operate the system according to a method including the steps of sucking water using a pump from a water inlet via a first valve, displacing the antifreeze via a nozzle manifold into an antifreeze tank until the water reaches a second valve, and connecting the second valve to a third valve to allow circulation of water in the system.

Abstract: A maintenance platform of a jaw crusher having an adapter part that engages a first wear part when in place in a jaw crusher cavity. The platform includes a support part that engages a second wear part when the maintenance platform is in the jaw crusher cavity. The platform further includes a platform part residing between the adapter part and the support part. The platform part has a face section that engages the adapter part and a central section that extends apart from the face section towards the support part. The platform part defines at least two grooves each extending from the central section to the face section. The adapter part joins to the platform part by hand screws or nuts through the grooves. The grooves are shaped such that the platform part is separable from the adapter part after untightening while maintaining in place the hand screws or nuts.

Abstract: A frame of a jaw crusher comprises a front wall for receiving crushing force and side walls connected to the front wall. The frame of the jaw crusher comprises a front part and a rear part joinable to the front part, and the front part comprises the front wall, and a major part of the front wall and the front part of both side walls form a unitary piece. A jaw crusher and a crushing plant.

Abstract: In a mineral material processing method, mineral material is processed in a mineral material processing plant. Heat generated in heat sources of the processing plant and/or fuel used in a motor of the processing plant is cooled in a cooler of the processing plant. The cooler is equipped with a blower. Wetting water is directed to the mineral material for binding dust generated in the processing. Heat of at least one heat source of the processing plant and/or heat of the fuel is transferred to the wetting water before using the wetting water for dust binding. The wetting water is directed, before the dust binding, to a first heat exchanger for receiving heat in the wetting water.

Abstract: A frame of a jaw crusher comprises a front wall for receiving crushing force and side walls connected to the front wall. The frame of the jaw crusher comprises a front part and a rear part joinable to the front part, and the front part comprises the front wall, and a major part of the front wall and the front part of both side walls form a unitary piece. A jaw crusher and a crushing plant.

Abstract: Malfunctions of sliding bearings of cone crushers used in crushing stone are anticipated by providing sensors in connection to bearing parts, by means of which sensors it is possible to observe increases in friction forces. A beginning bearing damage can be detected by means of sensors at such an early stage, that extensive damage to bearings and to other parts of the crusher can be prevented.

Abstract: Malfunctions of sliding bearings of gyratory crushers used in crushing stone are anticipated by providing sensors in connection to bearing parts, by means of which sensors it is possible to observe increases in friction forces. A beginning bearing damage can be detected by means of sensors at such an early stage, that extensive damage to bearings and to other parts of the crusher can be prevented.