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Russia: NLMK Group has completed hot-testing of its new crushing and screening unit for the processing of steelmaking slag at its Lipetsk plant. The project will double the amount of scrap, or ‘metal inclusions‘, extracted from waste and returned to the production process. The new unit will process 2.4Mt/yr of slag, replacing an obsolete unit, which processed 1.7Mt/yr of slag. Metal extraction efficiency at the new unit will be as high as 95%, which will minimise the consumption of iron ore and scrap in pig iron and steelmaking operations through replacement with recoverables. The project had an investment of US$7.2m.

“The new unit will process the entire volume of our steelmaking slag, which is about 2.2Mt/yr, as well as allowing us to eliminate the need to process slag via third parties. The unit will also help us to recycle previously accumulated waste. This Strategy 2017 project is our next step towards increasing the role of recycling in bringing down steelmaking costs and reducing our environmental footprint,” said Sergei Filatov, the managing director of Novolipetsk.

Recovering production waste is one of NLMK’s priorities as part of its operational efficiency improvement efforts. NLMK Group is currently building a new briquetting plant at the Lipetsk plant. Briquettes will be manufactured from a mix of iron ore concentrate and blast furnace slag formed in the process of wet blast furnace gas cleaning. The plant will recycle more than 350,000t/yr of blast furnace waste.

India: According to local media, Sunvik Steels plans to expand its integrated steel plant in Jodidevarahalli, Tumakuru, Karnataka. The estimated cost of the project is US$86.8m.

The existing plant has three 100t/day direct reduced iron (DRI) kilns, a 12t/hr induction furnace based steel melting shop, a 100t/day roller mill, a 10MW captive power plant, a 2000bricks/day fly-ash brick plant and one 15t/day slag crusher and beneficiation plant. The proposed expansion will see the plant consist of one 200t/day DRI kiln, a 500t/day induction furnace based steel melting shop, a 500t/day roller mill, 5MW and 10MW captive power plants, a 300t/day blast furnace, two 100t/day tunnel kilns, a 2000t/day iron ore pelletisation and beneficiation, a 6000bricks/day fly-ash brick plant, a 100t/day fly-ash beneficiation plant and a 30t/day slag crusher and beneficiation plant. The project is waiting for environmental clearance.