Composite lifting element of a grinding mill
AssigneeMetso Minerals, Inc.
InventorsPekka Siitonen, Jari Liimatainen, Tage Möller, Klas-Göran Eriksson, Sture Persson
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Abstract
A lifting element for a drum of a grinding mill to be used for grinding of ores and minerals. The lifting element is attachable to a frame of the drum and extending in the longitudinal direction of the drum. The lifting element includes a flexible body and a wear protection element located in the leading edge of the body with respect to the direction of rotation of the drum. The wear protection element includes at least two different parts manufactured of different materials having toughness and hardness different from each other.
Claims14
A lifting element for a drum of a grinding mill to be used for grinding of ores and minerals, said lifting element being attachable to a frame of the drum and extending in the longitudinal direction of the drum, and said lifting element comprising a flexible body made of a polymeric material and a wear protection element located in a leading edge of the body with respect to a direction of rotation of the drum when attached thereto, wherein:
- the wear protection element consists of at least two different parts, said parts being metallic reinforcements manufactured of different materials having a toughness and hardness different from each other, and
- the part of the wear protection element manufactured of a harder material is located:
- in a lower part of a leading edge of the part manufactured of a tougher material,
- at least partly under the part manufactured of the tougher material, or
- at least partly inside the part manufactured of the tougher material.
A lifting element for a drum of a grinding mill to be used for grinding of ores and minerals, said lifting element being attachable to a frame of the drum and extending in the longitudinal direction of the drum, and said lifting element comprising a flexible body made of a polymeric material and a wear protection element located in a leading edge of the body with respect to a direction of rotation of the drum when attached thereto, wherein:
- the wear protection element consists of at least two different parts, said parts being metallic reinforcements manufactured of different materials having a toughness and hardness different from each other,
- when viewed from a base of the lifting element, the wear protection element is divided into an upper part and a lower part, said parts being located substantially on top of each other, and
- the upper part of the wear protection element is manufactured of a material having higher toughness and lower hardness than a material of which the lower part of the wear protection element is manufactured.
Dependencies are inferred from the claim text.