Process and device for saltless, oxidation-free remelting of aluminum, its
alloys and of aluminum scrap with miscellaneous impurities, such as
combustible oily substances, adherent combustible or noncombustible
materials and those with a higher specific weight in a rotating drum (1)
with a combustion chamber (4), two supply valves (5, 6) and one burner
nozzle (32), in the conventional manner the fuel being natural gas or
heating oil, and the oxygen being supplied with air via the supply valve
(6) to the combustion chamber (4), using an electronic control an amount
of air being metered such that the amount of oxygen supplied with the air
corresponds exactly to the stoichiometric ratio for complete combustion
of the fuel supplied by the burner nozzle (32).