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US 5,052,312 AGranted
Cyclone furnace for hazardous waste incineration and ash vitrification
AssigneeThe Babcock & Wilcox Company
InventorsJohn M. Rackley, Stanley J. Vecci
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Abstract
An apparatus and method for vitrifying inorganic hazardous material including heavy metals from waste containing organic and inorganic substances. The inorganic hazardous material is retained and vitrified in the slag layer of a cyclone furnace where it is converted to a nonleachable, inert form for safe disposal in conventional landfills and where, simultaneously, organic hazardous substances are completely destroyed.
Claims7
A method for vitrifying waste containing inorganic hazardous material, comprising the steps of:
- burning a fuel in a cyclone furnace;
- introducing the waste into the cyclone furnace;
- forming a molten slag layer on the wall of the cyclone furnace;
- operating the cyclone furnace at a temperature range to provide time for the inorganic waste to be incorporated in the slag;
- capturing the inorganic waste in the molten slag layer;
- and
- vitrifying the inorganic waste into an inert form.
4 more elements
Dependencies are inferred from the claim text.