Paper Title :Reduction of Waste and Lean Grade Iron Resources to Give DRI: The Study of its Reduction Parameters
Author :Rahul Sen, Deeksha Gupta, Upender Pandel
Article Citation :Rahul Sen ,Deeksha Gupta ,Upender Pandel ,
(2023 ) " Reduction of Waste and Lean Grade Iron Resources to Give DRI: The Study of its Reduction Parameters " ,
International Journal of Mechanical and Production Engineering (IJMPE) ,
pp. 47-50,
Volume-11,Issue-4
Abstract : Waste to useful product development is the current need of society. In this research work, an attempt has been
made to reduce the mill scale with lean grade iron ore using lean grade coal to DRI (Direct reduced iron). Mill scale is a steel
rolling waste and DRI is useful raw material, which can be directly melted into EAF (Electric arc furnace) to produce steel.
It means totally waste or lean grade materials used to give some useful output. In this paper some of the reduction parameters
of research work have been discussed. The experiment was conducted by making pellets of mill scale by mixing it with lean
grade iron ore in different percentage: 0%, 25%, 50%, 75% and 100% mill scale (rest iron ore). Pellets stability was studied
by green crushing strength, cold compressive strength and porosity measurement. Followed by direct reduction of these
pellets at different temperature (850oC, 900oC, 950oC, 1000oC) and time (15-90 min). Result shows that cold compressive
strength increases with increase in mill scale content but green crushing strength decreasesand porosity decreases with
increase in mill scale content. It was determined that degree of reduction increased with increase in time and temperature of
the reaction, the maximum percentage reduction was obtained at 1000oC of sample 4(75% mill scale+25% iron ore) when
reduced for 90 minutes.
Keywords - Mill Scale, Reduction, Waste Utilization, Lean Grade Coal
Type : Research paper
Published : Volume-11,Issue-4
DOIONLINE NO - IJMPE-IRAJ-DOIONLINE-19666
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Published on 2023-07-11 |
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