Utjecaj štetnih elemenata pri proizvodnji sirovog željeza u odnosu na ulaznu i izlaznu materijalnu bilancu

Abstract

The main objectives of blast-furnace operators include maximum production of pig iron of required chemical composition at minimal cost. This can be ensured only in case of quality raw material basis and trouble-free operation of blast-furnace. Both parameters are infl uenced by the concentration of undesirable elements. The negative elements contained in the blast-furnace raw materials cause many technological problems in the sintering as well as in the blast-furnace process. These are mainly heavy metals and alkaline carbonates. The article deals with the analysis of material balance of zinc and selected alkaline carbonates contents in the input raw materials and output products of the blast-furnace.Glavni cilj visokopećara uključuje maksimalnu proizvodnju sirovog željeza zahtijevanog kemijskog sastava uz minimalne troškove. To se može postići jedino na bazi kvalitetnih sirovina i besprijekornom radu visoke peći. Na obadva parametra utječe koncentracija nepoželjnih elemenata. Negativni elementi sadržani u visokopećnim sirovinama uzrokuju mnoge tehnološke probleme pri sinteriranju kao i u visokopećnom procesu. To su prvenstveno teški metali i alkalni karbonati. U radu je analizirana materijalna bilanca cinka i pojedinih alkalnih karbonata sadržanih u ulaznim sirovinama te izlaznim proizvodima visoke peći.Web of Science51332832