Scrap metal recovery process
Patent
·
OSTI ID:5486722
A method is disclosed for recycling aluminum scrap containing thermal barrier material comprising the steps of comminuting the scrap to short pieces of a predetermined length, conveying the comminuted aluminum scrap to a storage hopper, continuously feeding comminuted aluminum scrap product to an indirect-fired rotary kiln, heating the scrap to a predetermined temperature for a sufficient amount of time to reduce the thermal barrier material in the scrap to combustible gas and cinder and produce a satisfactory aluminum melt furnace feed product, collecting and burning the combustible gases and vapors in a waste heat recovery afterburner to provide sufficient heating values for the scrap heating step, and then feeding the treated scrap to an aluminum melt furnace for melting and further processing.
- Assignee:
- The William L. Bounell Co.
- Patent Number(s):
- US 4394166
- OSTI ID:
- 5486722
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320304 -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Waste Heat Recovery & Utilization
320305* -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Industrial Waste Management
AFTERBURNERS
ALUMINIUM
CHEMICAL REACTIONS
COMBUSTION
COMMINUTION
ELEMENTS
EQUIPMENT
INDUSTRY
MANAGEMENT
MATERIALS RECOVERY
METAL INDUSTRY
METALS
OXIDATION
POLLUTION CONTROL EQUIPMENT
PROCESSING
RECOVERY
RECYCLING
SCRAP
SCRAP METALS
SOLID WASTES
THERMOCHEMICAL PROCESSES
WASTE HEAT UTILIZATION
WASTE MANAGEMENT
WASTE PROCESSING
WASTE PRODUCT UTILIZATION
WASTES
320304 -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Waste Heat Recovery & Utilization
320305* -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Industrial Waste Management
AFTERBURNERS
ALUMINIUM
CHEMICAL REACTIONS
COMBUSTION
COMMINUTION
ELEMENTS
EQUIPMENT
INDUSTRY
MANAGEMENT
MATERIALS RECOVERY
METAL INDUSTRY
METALS
OXIDATION
POLLUTION CONTROL EQUIPMENT
PROCESSING
RECOVERY
RECYCLING
SCRAP
SCRAP METALS
SOLID WASTES
THERMOCHEMICAL PROCESSES
WASTE HEAT UTILIZATION
WASTE MANAGEMENT
WASTE PROCESSING
WASTE PRODUCT UTILIZATION
WASTES