Efficient carbon-containing linings for high-temperature equipment in nonferrous metallurgy

Abstract

The influence of carbon materials on the physico-mechanical properties of refractories is studied, methods of impregnating refractories possessing a magnesian composition with carbon materials are developed, techniques of protecting carbon materials against oxidation are investigated, and zones of lining in which the use of carbon materials would be efficient are determined. Lining with the use of carbon materials are tested and introduced into plants in the nonferrous metallurgy industry. Atechnology for the fabrication of periclase-carbonaceous refractories and compound masonry and for impregnation of articles with pitch coke are developed from the results of the study. Carbon-containing refractories and coatings have undergone industrial testing at a number of enterprises and have been introduced in reverberatory, ore-smelting, and rotary kilns and in horizontal converters. The use of carbon-containing refractories and coatings in the lining of equipment in the nonferrous metallurgy industry will increase the operating period of the equipment by 30 to 200%. © 2013 Springer Science+Business Media New York.