Pretreatment of Manganese Ore for Improved Energy Efficiency and Smelting Furnace Stability

9 Pages Posted: 22 Sep 2021

See all articles by Joseph Hamuyuni

Joseph Hamuyuni

Metso Outotec Research Centre

J Saarenmaa

Metso Outotec Research Centre

P Mäkelä

Metso Outotec Research Centre

Olli Pekkala

Metso Outotec Finland

Christian Binder

Metso Outotec Germany

S Rannantie

Metso Outotec Germany

M Lindgren

Metso Outotec Research Centre

Date Written: September 12, 2021

Abstract

Preheating of feed for smelting in submerged arc furnace (SAF), has shown to have numerous advantages in the ferroalloy industry. In ferrochrome smelting industry for example, preheating the feed before smelting in SAF has shown excellent results in stabilizing SAF smelting operation by removing moisture and volatiles. More importantly, preheating has shown to reduce smelting energy consumption and to increase the smelting furnace capacity. Furthermore, reducing SAF energy consumption has significant benefits in reducing CO2 emissions. However, preheating technology is currently not widely used in ferromanganese production. In ferromanganese production, smelting is mostly done using a mixture of lump and sintered ore as feed to SAF. The behaviour of feed during preheating in separate shaft kiln is still poorly known in smelting. This research is aimed at understanding optimal operating conditions/steps that could be suitable for using preheating technology when lump ore is used in the feed mix. This is also one of the goals of the EU- funded PreMa project.

Keywords: Preheating, manganese lump ore, energy efficiency, shaft furnace, thermal decomposition

Suggested Citation

Hamuyuni, Joseph and Saarenmaa, J and Mäkelä, P and Pekkala, Olli and Binder, Christian and Rannantie, S and Lindgren, M, Pretreatment of Manganese Ore for Improved Energy Efficiency and Smelting Furnace Stability (September 12, 2021). Proceedings of the 16th International Ferro-Alloys Congress (INFACON XVI) 2021, Available at SSRN: https://ssrn.com/abstract=3926120 or http://dx.doi.org/10.2139/ssrn.3926120

Joseph Hamuyuni (Contact Author)

Metso Outotec Research Centre ( email )

Finland

J Saarenmaa

Metso Outotec Research Centre ( email )

Finland

P Mäkelä

Metso Outotec Research Centre ( email )

Finland

Olli Pekkala

Metso Outotec Finland ( email )

Finland

Christian Binder

Metso Outotec Germany ( email )

Germany

S Rannantie

Metso Outotec Germany ( email )

Germany

M Lindgren

Metso Outotec Research Centre ( email )

Finland

Do you have a job opening that you would like to promote on SSRN?

Paper statistics

Downloads
102
Abstract Views
259
rank
350,000
PlumX Metrics