The Using of Technogenic Waste from Ferroalloy Production

Abstract

When ferroalloys are produced, a large number of coproducts are also formed: slag, riddlings of small fractions of ore raw materials and finished products (ferroalloys), sludge, dust and a number of other materials. Their use and processing allows for reduced consumption of the original minerals, thereby increasing the efficiency of the main production and reducing environmental pollution. As a result, both enterprise costs in the form of environmental payments for emissions and waste disposal, as well as government costs associated with environmental measures are reduced. However, the scale of use of ferroalloy production wastes is relatively small. The replacement of the main and auxiliary equipment with new, environmentally friendly equipment, can promote to significantly reduce or completely eliminate hazardous emissions and the generation of unclaimed production waste. It is necessary to organize the use of blast furnace gas from ore reduction furnaces for preheating and partial recovery of elements of charge materials.