Patent ID: 6309210
Filing Date: 2001-10-30
Classification: F27B

Abstract:
A process of operating a kiln, comprising the steps of:providing a kiln includinga kiln chamber, an inlet, and a clinker outlet,a burner positioned so that its flame is directed into said kiln chamber, said burner including a fuel inlet, an oxidant inlet, and an outlet,a clinker cooler positioned to receive clinkers from said clinker outlet and including at least one air inlet into said clinker cooler, andan oxidant source in fluid communication with said at least one clinker cooler air inlet;wherein said oxidant source comprises a non-pure-air oxidant selected from the group consisting of pure oxygen and oxygen-enriched air;flowing oxidant from said oxidant source through said at least one clinker cooler air inlet; andflowing material to be calcined into said kiln chamber to form clinkers.