Dobijanje portland cementnog klinkera sinterovanjem smeše sirovina iz rudarsko topioničarskog basena Bor

Abstract

U ovom radu su izloženi rezultati laboratorijskih ispitivanja mogućnosti dobijanja PC klinkera sinterovanjem smeše sirovina kojima raspolaže RTB Bor. Obavljeno je sinterovanje smeše krečnjaka iz pogona 'Zagrade', kvarcnog peska iz pogona 'Bela Reka' i jalovine koja nastaje u flotaciji rudnika bakra 'Veliki Krivelj'. Pod istim uslovima sinterovanja (1450°C), obavljeno je i sinterovanje klinkera iz standardne smeše sirovina koje se koriste u FC 'Novi Popovac'. Upoređivanjem rezultata hemijskih analiza i XRD analize dobijenih PC klinkera, utvrđeno je da postoji mogućnost da se PC klinker sinteruje iz sirovina kojima raspolaže RTB Bor. Naime, kada se za sirovinsku smesu koriste krečnjak 'Zagrađe' klase krupnoće - 8+4 mm, kvarcni pesak 'Bela Reka' i flotacijska jalovina u masenom odnosu 81:18:1, dobija se klinker koji je po mineraloškom sastavu adekvatan PC klinkeru dobijenom sinterovanjem sirovina koje se koriste u FC 'N.Popovac'. Ovi rezultati ukazuju na mogućnost primene flotacijske jalovine rudnika bakra u cementnoj industriji, a takođe i na mogućnost dobijanja cementa iz sirovina kojima raspolaže RTB Bor. 1.

In this work, the possibility to obtain Portland Cement canker by sintering the mixture of raw materials originating from the Mining and Smelting Combine of Bor, on laboratorial scale, was investigated. The sintering mixture was composed of the limestone from the 'Zagrađje' plant, quartz sand from the 'Bela Reka' plant and tailings generated in flotation plant of the 'Veliki Krivelj' copper mine. Under the same sintering condition (1450ºC), a clinker based on the mixture of standard raw materials used in the Cement factory of Novi Popovac was sintered. By comparing the results of the chemical and XRD analysis of obtained Portland Cement clinkers, it was confirmed that it is possible to sinter Portland Cement clinker from the raw materials available from the Mining and Smelting Combine of Bor. By using the combination of the limestone (class - 8+4 mm), quartz sand from the plant and flotational tailings in the ratio of 81:18:1, the clinker whose mineralogical composition corresponds to the PC clinker obtained by sintering the raw materials used in the Cement Factory of 'Novi Popovac', was obtained. Obtained results indicate that the tailings generated by flotation of copper ore can be used in the cement industry; also, that the raw materials available from the Mining and Smelting Combine of Bor can be used to this purpose. .