Apparatus and method for ice blasting

Details Apparatus and method for ice blasting Apparatus and method for ice blasting

B - Operations, Transporting

24

C

B24C 5/00 (2006.01) B24C 1/00 (2006.01) B24C 11/00 (2006.01) F25C 1/14 (2006.01) F25C 5/00 (2006.01) F25C 5/02 (2006.01)

Patent

CA 2257384

An apparatus (10) and method for continuously delivering ice particulates (20a) onto a substrate for treating a surface of the substrate. The apparatus includes a refrigerated curved surface (15) that is brought into contact with water to form a thin ice sheet (20) on the surface (15). A doctor-knife (22) intercepts a leading edge of the ice sheet to fragment the ice sheet to produce ice particulates which enter into a tube (30). The particulates are fluidized by air and carried to a hose (52) for delivery through a blasting nozzle (54) under pressure.

Appareil (10) et procédé de projection continue de particules de glace (20a) sur un substrat pour traiter une surface du substrat. Cet appareil comprend une surface incurvée réfrigérée (15) qui est mise en contact avec de l'eau pour qu'il se forme une mince feuille de glace (20) sur la surface (15). Une racle (22) intercepte un bord avant de la feuille de glace pour fragmenter cette dernière et produire des particules de glace qui pénètrent dans un tube (30). Les particules sont fluidisées par l'air et transportées vers un tuyau (52) afin d'être projetées sous pression par une buse de projection (54).

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