Screen cloths
AssigneeSYNCRUDE CANADA LTD. in trust for the owners of th
InventorsKhaled Obaia, Hugh Roth
Life of this patent
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Abstract
A screen cloth for use in a screening device for screening out oversize objects, including oil sands lumps and rocks present in an oil sands slurry is provided, comprising at least one screen segment having a top surface and having a plurality of openings therein; and a plurality of anti-wear tiles attached to the top surface of the at least one screen segment by brazing; whereby each anti-wear tile is separated from an adjacent anti-wear tile by a gap that is about 0.5 mm or less such that a brazing material used to attach the anti-wear tiles to the at least one support structure fills the gap between each anti-wear tile through capillary action thereby connecting each anti-wear tile to its adjacent anti-wear tile.
Claims20
A screen cloth for use in a screening device for screening out oversize objects, including oil sands lumps and rocks present in an oil sands slurry, comprising:
- at least one screen segment having a top surface and having a plurality of openings therein;
- and
- a plurality of anti-wear tiles attached to the top surface of the at least one screen segment by brazing;
- whereby each anti-wear tile is separated from an adjacent anti-wear tile by a gap that is 0.5 mm or less such that a brazing material used to attach the anti-wear tiles to the at least one screen segment fills the gap between each anti-wear tile through capillary action thereby connecting each anti-wear tile to its adjacent anti-wear tile.
A method for manufacturing a tiled screen segment for a screen cloth for use in a screening device for screening out oversize objects, including oil sands lumps and rocks present in oil sands slurry, comprising:
- providing a screen segment having a top surface;
- arranging a plurality of anti-wear tiles on the top surface of the screen segment such that each anti-wear tile is separated from an adjacent anti-wear tile by a gap of 0.5 mm or less;
- and
- brazing the anti-wear tiles to the top surface of the screen segment such that a brazing material fills the gap between each anti-wear tile gap by capillary action thereby connecting each anti-wear tile to its adjacent anti-wear tile.
Dependencies are inferred from the claim text.