Optimization of anthracite calcination process in a vertical electric arc furnace
Abstract
Anthracite is used for cathode block manufacturing must be calcined prior to its use to eliminate volatile matter and reduce its electrical resistivity. Anthracite calcination in vertical electric arc furnaces is widely used in the industry. It is well known that this technology leads to a radial temperature gradient in the furnace which results in non-homogeneous calcined anthracite properties. Also, operation experience has shown that production of calcination furnaces can be difficult to stabilize if process changes occur, which may lead to variable quality of the calcined material. To optimize the calcination process, an improved control strategy and a mathematical model of Elkem-type electric arc furnace were developed. Using these, it was successfully demonstrated that temperature gradient in the furnace can be reduced and that furnace productivity can be substantially increased.
- Authors:
-
- Alcan International Ltd., Jonquiere, Quebec (Canada)
- Alcan Smelters and Chemicals, Jonquiere, Quebec (Canada)
- GeniSim, Jonquiere, Quebec (Canada)
- Publication Date:
- OSTI Identifier:
- 372008
- Report Number(s):
- CONF-960202-
ISBN 0-87339-312-0; TRN: IM9641%%85
- Resource Type:
- Conference
- Resource Relation:
- Conference: Annual meeting and exhibition of the Minerals, Metals and Materials Society (TMS), Anaheim, CA (United States), 4-8 Feb 1996; Other Information: PBD: 1996; Related Information: Is Part Of Light metals 1996; Hale, W. [ed.] [Anglesey Aluminum Metal Ltd., North Wales (United Kingdom)]; PB: 1304 p.
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; ALUMINIUM; SMELTING; ANTHRACITE; CALCINATION; CATHODES; ARC FURNACES; VOLATILE MATTER; ELECTRIC CONDUCTIVITY; TEMPERATURE GRADIENTS; SIMULATION; MATHEMATICAL MODELS; FINITE ELEMENT METHOD; VALIDATION; PROCESS CONTROL; ENERGY CONSERVATION
Citation Formats
Perron, J, Bouvette, J F, and Dupuis, M. Optimization of anthracite calcination process in a vertical electric arc furnace. United States: N. p., 1996.
Web.
Perron, J, Bouvette, J F, & Dupuis, M. Optimization of anthracite calcination process in a vertical electric arc furnace. United States.
Perron, J, Bouvette, J F, and Dupuis, M. 1996.
"Optimization of anthracite calcination process in a vertical electric arc furnace". United States.
@article{osti_372008,
title = {Optimization of anthracite calcination process in a vertical electric arc furnace},
author = {Perron, J and Bouvette, J F and Dupuis, M},
abstractNote = {Anthracite is used for cathode block manufacturing must be calcined prior to its use to eliminate volatile matter and reduce its electrical resistivity. Anthracite calcination in vertical electric arc furnaces is widely used in the industry. It is well known that this technology leads to a radial temperature gradient in the furnace which results in non-homogeneous calcined anthracite properties. Also, operation experience has shown that production of calcination furnaces can be difficult to stabilize if process changes occur, which may lead to variable quality of the calcined material. To optimize the calcination process, an improved control strategy and a mathematical model of Elkem-type electric arc furnace were developed. Using these, it was successfully demonstrated that temperature gradient in the furnace can be reduced and that furnace productivity can be substantially increased.},
doi = {},
url = {https://www.osti.gov/biblio/372008},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Oct 01 00:00:00 EDT 1996},
month = {Tue Oct 01 00:00:00 EDT 1996}
}