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US 2001/0044089 A1Published application
Kiln universal oxygen enrichment
OwnerOvidiu Marin, Mahendra L. Joshi +2inventors
InventorsOvidiu Marin, Mahendra L. Joshi, Olivier Charon, Jacques Dugue
Life of this patent
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Abstract
A kiln is provided with oxidant injection locations upstream of air blowers which blow air into the kiln. The addition of oxygen into the kiln increases the cooling capacity of a clinker cooler, and enhances combustion in the kiln.
Claims20
An improved kiln useful in producing clinkers, comprising:
- a kiln chamber having 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;
- an oxidant source in fluid communication with an oxidant inlet of said kiln selected from the group consisting of said burner oxidant inlet, said clinker cooler air inlet, and both.
1 more element
A process of operating a kiln, comprising the steps of:
- providing a kiln including
- a 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, and
- an oxidant source in fluid communication with an oxidant inlet of said kiln selected from the group consisting of said burner oxidant inlet, said clinker cooler air inlet, and both;
- flowing oxidant from said oxidant source through said kiln oxidant inlet;
- and
- flowing material to be calcined into said kiln chamber to form clinkers.
5 more elements
Dependencies are inferred from the claim text.