Patent ID: 6290493
Filing Date: 2001-09-18
Classification: F27D

Abstract:
Grate plate for a cooler of loose material leaving a kiln and having the overall shape of an inverted tray with a bearing surface (10) for supporting and advancing a layer of material that is to be cooled with the aid of a cooling gas passing through the said plate, comprising; a forward part (10b) of the plate, viewed in the direction of progress of the material, includes overlapping gills (14) sloping upwards and defining transverse cavities (20) in the bearing surface and in that the overlapping parts of two adjacent gills (14) define narrow channels (22) for the passage of the cooling gas and in that the said channels (22) have a longitudinal section in the form of a rounded bend with an angle of less than 90.degree. opening vertically in an underside of the bearing surface and obliquely in the bottom of each of said cavaties (20).