Patent ID: 6312253
Filing Date: 2001-11-06
Classification: F27D,F28C,F28F

Abstract:
A cooler, for cooling particulate material which has been subjected to heat treatment in an industrial kiln, which cooler comprises an inlet, an outlet, end walls, side walls, a bottom and a ceiling, at least one stationary supporting surface for receiving and supporting the material to be cooled, means for injecting cooling gas into the material, as well as a reciprocating scraper system which comprises at east one row of scraper elements which extend transversely across the direction of movement of the material, said elements being moved back and forth over the supporting surface in the direction of movement of the material in order to convey the material forward over the supporting surface, CHARACTERIZED IN THAT each row of the transverse scraper elements is firmly fixed to at least one drive plate oriented in the direction of movement of the material, and in that said plate extends at least across the entire length of the supporting surface, and in that said drive plate extends either through the supporting surface, the ceiling, one of the side walls and/or at least one of the end walls of the cooler, where the drive plate is connected to a drive arrangement for movement back and forth.