Utilising of the oiled rolling mills scale in iron ore sintering process

Volodymyr I. Shatokha, Oleg O. Gogenko and Stanislav M. Kripak

Resources, Conservation & Recycling, 2011, vol. 55, issue 4, 435-440

Abstract: Up to 5% of steel is lost with the scale at hot rolling operation. This waste contains 69–72% of iron in the form of oxides. However, its recycling is confronted with presence of up to 20% of oil and 10% of water. E.g. when the oiled scale is introduced as an additive to the iron ore sintering mixture, incomplete combustion of liberated oil at heating during sintering process creates problems for gas cleaning and may even lead to damage of the equipment. A possibility to improve combustion of the scale's oil at the sintering process by preparation of a mixture with peat was shown in the laboratory experiments. Industrial trials demonstrate possibility to increase the oil combustion degree at sintering 2.7 times as much. Consumption of the oiled scale was increased from zero to 12.8kg (in a form of scale–peat blend) per ton of sinter, which allows for closing the loop of this waste at the integrated steelmaking factory.

Keywords: Recycling; Oiled rolling mills scale; Peat; Iron ore sintering (search for similar items in EconPapers)
Date: 2011
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0921344910002442
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:recore:v:55:y:2011:i:4:p:435-440

DOI: 10.1016/j.resconrec.2010.11.006

Access Statistics for this article

Resources, Conservation & Recycling is currently edited by Ming Xu

More articles in Resources, Conservation & Recycling from Elsevier
Bibliographic data for series maintained by Kai Meng ().