“MetalTech-Engineering” LLC, Nizhny Novgorod:

V. I. Gel, Chief Executive Officer, e-mail: gel942@yandex.ru

“Metalimport” LLC, Korolev, Russia:

D. N. Rudakov, Deputy Chief Executive Officer on Production

The article shares the problems of development of technology of melting of aluminium scrap and wastes on the secondary metallurgy enterprises of the Soviet Union and modern Russia. An overview of fuel melting furnaces, applied on these enterprises is given together with modern tendencies of development of secondary aluminium metallurgy. There is given a brief review of technology of melting and refining of secondary aluminium alloys. There is given a detail description of technology of melting of aluminium scrap and wastes in rotor furnace with inclined axis “UNIVERSAL-180”. The results of melting of various aluminium-containing wastes are given together with the comparative characteristics of Russian rotary furnaces with inclined axis and their import analogues. There is described the operation of the furnaces with external metal receiver and circulation of melt with usage of mechanical mixing devices and devices with a MHD-pumps. Usage of this type of furnaces makes it possible to reach high extraction of metal in the process of melting of swarf and fire scrap. However, this usage requires a careful preparation of this metal for melting: crushing, roasting, separation. The inclined rotary furnaces and rotary furnace with inclined axis do not have such disadvantages – they do not require any special preparation of the scrap and waste for melting. Melting of various types of scrap (including low-quality scrap in these rotor furnaces to reach high technological values. This article also shows the disadvantages of rotary furnace, increased removal of dust, application of special burners, high qualification of the personnel.

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