摘要:
A crusher comprising a box-like crusher frame with two end walls and two side walls connecting the end walls; at least one crusher rotor that is supported for a rotating movement inside the crusher frame against its end walls; the circumference of the crusher rotor having a plurality of crusher teeth and the crusher having counter-blade structures arranged to cooperate with the crusher teeth of the crusher rotor, and the material fed into the crusher for crushing being intended to be fed essentially above the centre line of the rotor(s) and to be crushed between the crusher teeth of the crusher rotor and the counter-blade structures; wherein two hatches are arranged on at least one side wall side of the crusher, the first hatch being above the centre line of the crusher rotor and pivoted at its top part to the crusher to be turnable toward the centre line of the crusher, and the second hatch being mainly below the centre line of the crusher rotor and movable away from the front of the crusher rotor.
摘要:
The invention relates to a method for feeding material to be crushed (B) by a step feeder into a crusher (3) and involves arranging one immediately after the other two step feeders (1, 2) placed at substantially the same height level or substantially close to the same height level, the use and speed of the feeders being controlled independently in each case. The invention also relates to a system for implementing the method. The height of the material is measured and the speed of the feeders is adjusted accordingly.
摘要:
The invention relates to a shredder for shredding material, the shredder comprising a frame, a shredder rotor rotatably arranged to the frame, a feeding chamber for directing the material to be shred into the shredder and for bringing the material in touch with the shredder rotor, a press (4) arranged into the feeding chamber to perform substantially horizontal or pendulous motion for pushing the material towards the shredder rotor, whereby the press is arranged to move along a bottom structure (5) of the feeding chamber, and whereby a replaceable wear surface structure (12) is arranged on top of the bottom structure (5) at least substantially within the area covering the path of the lower surface of the press.
摘要:
The invention relates to a disc screen for dividing a flow of material into several particle sizes, the disc screen comprising a body (1); a plurality of parallel axles (2) spaced apart from one another and arranged rotatably in the body (1); an actuator (3) for rotating the axles; a plurality of screen discs (4) spaced apart from one another and arranged fixedly on the axles (2), the screen discs (4) of one axle (2) being axially offset with respect to the screen discs of an adjacent axle; a plurality of material entanglement prevention means (5) arranged between the screen discs (4); the entanglement prevention means (5) comprising an inner sleeve (6) placed on the axle (2) non-rotatably with respect thereto; an outer sleeve arrangement (7) freely rotatably arranged on the inner sleeve (6); and a stabilization arrangement (8) arranged in the outer sleeve arrangement (7) for preventing the outer sleeve arrangement (7) from rotating along with the axle (2) and the inner sleeve (6), the stabilization arrangement comprising a weight (8) arranged in a selected sector on an outer surface of the outer sleeve arrangement (7). The invention separately also relates to this entanglement prevention means.
摘要:
The invention relates to a crusher for crushing solid material, the crusher comprising a frame (1);at least one crusher rotor (2) arranged rotatablyto the frame and having crusher blades (3) secured to the circumference thereof;a yielding counterblade structure (4) arranged for cooperation with the crusher blades (3) of the rotor for concurrently crushing and cutting said mate- rial and for yielding when encountering non-crushable material (12) and when overloaded;and a yielding and downwardly openable set of screens (5) below the crusher rotor (2), whereby the counterblade structure (4) is linked to the frame (7) of the set of screens (5) and made turnable towards it with respect to the pivoting shaft (6) in a yield situation; and the set of screens (5) is linked to the crusher frame on the opposite side of the crusher rotor (2) with respect to the counterblade structure (4) and its pivoting shaft (6) and made downwardly collapsible about the pivoting shaft (8) of the set of screens (5).