Rezidualni elementi v železovih rudah, med aglomeracijo in v visoki peči Železarne Zenica (Režime)
Z. Horgas,* M. Horgas*
Residuals in iron ores during agglomeration and in the blast furnace of Zenica iron vvorks
V trajanju enega leta je bilo sistematično analiziranih nad 1100 vzorcev železovih rud, piritnih ogorkov, sintra in grodlja in določena je bila vsebnost bakra, arzena, antimona, svinca, cinka, niklja in kroma. V trajanju dveh mesecev so bili vsakodnevno odvzeti vzorci iz vsake pošiljke. V ostalih 10 mesecih je bilo vzorčevanje izvršeno na vsakih deset dni z izjemo piritnih ogorkov, ki so bili analizirani po pošiljkah. Določena je bila tudi količina rezidualov v približno 200 kontrolnih geoloških vzorcih železove rude vzetih iz nahajališč železove rude v rudnikih Vareš in Ljubija. Analizirano je bilo tudi manjše število vzorcev koksa, praha iz visokih peči, apna in blata iz Dorrovih zgošče-valcev.
Skrbno je bila preverjena točnost in ponovljivost analitskih metod. Določeni so bili izvori, variacije in razdelitev rezidualov med aglomeracijo in v visoki peči.
* MI Hasan Brkic, Zenica
In the period of one year over 1100 samples of iron ore, pyrite cinder, sinter and pig iron were systematically analysed on copper, arsenic, anti-mony, lead, zine, tin, nickel and chromium. During two months samples were taken each day or from each delievery while during the rest ten months the sampling was carried out on each ten days except for pyrite cinder vvhich vvas sampled and analysed lot by lot. The amount of residuals in approx. 200 control geologic samples of iron ore taken from deposits of iron mineš Vareš and Ljubija vvas also determined. A lovver number of samples of coke, blast furnace dust, lime and mudd from Dorr tvpe sedimentation classifier vvas also examiined.
The accuracy and reproductibility of the ana-lytical methods utilised vvas thoroughly investigated. The sources, variations and distribution of residuals during agglomeration and in blast furnace vvere determined.