Energy Efficient Technology of Solid Domestic Waste Recycling in Shaft Furnaces of Cupola Type

The technology of high-temperature pyrolysis (over 850°C) performed in an energy plant based on a shaft melting unit is one of the most efficient ways of solid domestic waste neutralization and recycling. It includes preliminary preparation in the extruder, high-temperature pyrolysis under the conditions of shaft furnace smelting with addition of solid fuel, cleaning and use of pyrolysis gases as a fuel in the boiler. The generating solid waste represents safe mineral components

Utilization of Iron-Containing Waste from Magnetic Concentration of Kursk Magnetic Anomaly’s Oxidized Ferruginous Quartzites

The paper studies the problem of utilization of oxidized ferruginous quartzites which are stored with overburden at the present time. The solution of the problem is restrained by absence of efficient technology for concentration and lumping of these ores. The results of studing and analyzing quartzite concentration methods have shown that floatation methods are the most efficient way of producing a high-quality iron-ore concentrate. The produced concentrate contained up to 67% of iron. When lumping concentrates of oxidized quartzites, the derived products, i.e. agglomerates and pellets, can significantly improve technical and economic parameters of blast-furnace smelting in terms of productivity and specific coke consumption. The use of oxidized ferruginous quartzites will reduce the man-caused impact on the environment, which is important for regions with a high concentration of industrial plants.   Keywords: ferruginous quartzites, concentration, floatation, lumping, sinter, pellets, quality parameter

Transfer of heat through the wall of an air tuyere under unsteady conditions

Translated from Russian (Izv. Vyssh. Uchebn. Zaved., Chern. Metall. 1986 (4) p. 112-115)Available from British Library Document Supply Centre- DSC:5828.4(M--36938)T / BLDSC - British Library Document Supply CentreSIGLEGBUnited Kingdo

Variation in the temperature of the wall of an air tuyere in contact with molten metal

Translated from Russian (Izv. Vyssh. Uchebn. Zaved., Chern. Metall. 1986 (10) p. 103-107)SIGLEAvailable from British Library Document Supply Centre- DSC:5828.4(M--37177)T / BLDSC - British Library Document Supply CentreGBUnited Kingdo

Mathematical model of temperature distribution in pellets of concentrate of different size grading

22.00; Translated from Russian (Izv. Vyssh. Uchebn. Zavod., Chern. Metall. 1987 (3) p. 20-22)SIGLEAvailable from British Library Document Supply Centre- DSC:9022.06(BISI--25960)T / BLDSC - British Library Document Supply CentreGBUnited Kingdo

Special features of the sintering process of iron-ore materials in different gas atmospheres

14.25; Translated from Russian (Izv. Vyssh. Uchebn. Zaved., Chern. Metall. 1985 (2) p. 16-19)Available from British Library Document Supply Centre- DSC:9022.06(BISI--23855)T / BLDSC - British Library Document Supply CentreSIGLEGBUnited Kingdo

Thermal-stressed state of iron-ore pellets in the initial stage of sintering

22.00; Translated from Russian (Izv. Vyssh. Uchebn. Zaved., Chern. Metall. 1987 (10) p. 102-105)SIGLEAvailable from British Library Document Supply Centre- DSC:9022.06(BISI-Trans--26516)T / BLDSC - British Library Document Supply CentreGBUnited Kingdo