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US 4,907,690 AGranted
Device for removing a compacted oil sand layer from a conveyor belt
AssigneeAlberta Energy Company, Ltd. et al.
InventorLawrence M. Spohn
Life of this patent
Estimating the term…
Abstract
A device is provided for shearing an adherent layer of oil sand for removal from a major surface of a moving conveyor belt. A v-shaped formation of linearly-arrayed, spaced-apart, rotatable discs is suspended above or beneath the belt and brought into pressing engagement with the oil sand layer. As the discs rotate with the advancement of the belt, they function to cut through the layer, loosening it from the belt so it separates therefrom.
Claims1
A device for shearing an adherent layer of oil sand for removal from a major surface of a moving conveyor belt having upstream and downstream ends comprising:
- a frame;
- a pair of linear arrays of spaced apart, rotatable, metal discs arranged in a v-shaped formation with the apex of the formation being positioned substantially at the centre of the belt, said discs being generally dish-shaped and having their concave faces directed toward the upstream end of said belt;
- and
- means, associated with said frame, for suspending said frame and bringing the discs into pressing engagement with the oil sand layer at the desired contact pressure.
1 more element
Dependencies are inferred from the claim text.