Roller crusher having at least one roller comprising a flange
AssigneeMetso Minerals (Sweden) AB
InventorLars Gronvall
Life of this patent
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Abstract
The disclosure relates to a roller crusher having two generally parallel rollers arranged to rotate in opposite directions, towards each other, and separated by a gap, each roller having a first end and a second end. The roller crusher includes a flange attached to at least one of the ends of one of the rollers. The flange extends in a radial direction of the roller, and has a height above an outer surface of the roller which is sufficient to extend across the gap substantially along a nip angle of the roller crusher. A feeding structure is formed on the flange and extends in an axial direction of the roller to engage material toward the gap.
Claims9
A roller crusher having two generally parallel rollers arranged to rotate in opposite directions, towards each other, and separated by a gap, each roller having a first end and a second end, said roller crusher comprising:
- a flange attached to at least one of said ends of one of said rollers,
- said flange extending in a radial direction of said roller,
- said flange having a height above an outer surface of said roller which is sufficient to extend across said gap substantially along a nip angle of said roller crusher,
- wherein said flange includes a feeding structure that extends in an axial direction of said roller from an inner surface of said flange towards the other end of said roller,
- wherein said feeding structure engages material to be crushed and increases pressure on said material towards said gap between said rollers.
A roller crusher according to claim l, wherein said flange is made of a first material and said feeding structure is made of a second material, said second material being harder than said first material.
Dependencies are inferred from the claim text.