Computational Modelling of Electrical Conduction in Ferroalloy Furnace Burdens

18 Pages Posted: 22 Sep 2021

See all articles by Quinn Reynolds

Quinn Reynolds

Mintek

Shana Baumgartner

Stellenbosch University

Markus Erwee

Samancor Chrome

Stefan Swanepoel

Samancor Chrome

Isabel Geldehuys

Mintek

Guven Akdogan

Stellenbosch University

Date Written: September 12, 2021

Abstract

A computational model of the electrical behaviour of the burden layer in a ferroalloy furnace system is presented, focusing on ferrochromium as an example case. The model is based on the discrete element method, which calculates the mechanical interactions and resulting motion of each particle in large ensembles. A simplified set of relationships describing the melting and reaction zones around each electrode tip is included in the computational model to control the continuous consumption of particles, and it is shown how different consumption mechanisms for different types of particles can lead to the formation of reductant-rich beds and other geometric structures within the burden. A method for calculating the inter-electrode electrical resistance by constructing a network based on particle contacts is developed and used to generate quantitative estimates of inter-electrode burden conduction effects under different conditions of electrode geometry and particle consumption dynamics.

Keywords: modelling, electrical, ferrochromium, pyrometallurgy

Suggested Citation

Reynolds, Quinn and Baumgartner, Shana and Erwee, Markus and Swanepoel, Stefan and Geldehuys, Isabel and Akdogan, Guven, Computational Modelling of Electrical Conduction in Ferroalloy Furnace Burdens (September 12, 2021). Proceedings of the 16th International Ferro-Alloys Congress (INFACON XVI) 2021, Available at SSRN: https://ssrn.com/abstract=3926638 or http://dx.doi.org/10.2139/ssrn.3926638

Quinn Reynolds (Contact Author)

Mintek ( email )

South Africa

Shana Baumgartner

Stellenbosch University ( email )

South Africa

Markus Erwee

Samancor Chrome ( email )

South Africa

Stefan Swanepoel

Samancor Chrome ( email )

South Africa

Isabel Geldehuys

Mintek ( email )

South Africa

Guven Akdogan

Stellenbosch University ( email )

South Africa

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