Crusher rotor
AssigneeMetso Finland Oy
InventorsJoni Tattari, Ville Jarvenpaa
Life of this patent
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Abstract
A rotor for a comminution apparatus that is arranged to launch material to be comminuted towards a surface, such as an anvil or an autogenous layer of crushed material. The rotor includes a frame including an upper plate, a lower plate and wall elements extending between the upper plate and the lower plate. The rotor further includes an inlet opening in the upper plate and an outlet located between the upper plate and the lower plate. An uppermost surface of the frame and a lowermost surface of the frame have a greater hardness than the rest of the frame such that additional wear protection elements may be omitted at those uppermost and lowermost surfaces.
Claims14
Rotor for a comminution apparatus, said rotor being arranged to launch material to be comminuted towards a surface, said rotor comprising a frame including an upper plate, a lower plate and wall elements extending between said upper plate and said lower plate, the rotor further comprising an inlet opening in said upper plate and an outlet located between the upper plate and the lower plate, wherein the upper plate and the lower plate has a greater hardness than the wall elements such that an uppermost surface of the frame and a lowermost surface of the frame has a greater hardness than the rest of the frame such that additional wear protection elements can be omitted at those upper most and lowermost surfaces.
Method for manufacturing a rotor for a comminution apparatus, said rotor being arranged launch material to be comminuted towards a surface, said method comprising the following steps
- providing rotor an upper plate having an inlet opening therein, a lower plate and wall elements;
- connecting said wall elements such that they extend between said upper plate and said lower plate and such that one or more outlets are created between the upper plate and the lower plate,
- wherein the upper plate and the lower plate has a greater hardness than the wall elements such that an uppermost surface of the upper plate and a lowermost surface of the lower plate has a greater hardness than the rest of the rotor such that additional wear protection elements may be omitted at those surfaces.
Dependencies are inferred from the claim text.