MATERIALS TRANSACTIONS
Online ISSN : 1347-5320
Print ISSN : 1345-9678
ISSN-L : 1345-9678
Concept of Furnace for Metal Refining by Microwave Heating —A Design of Microwave Smelting Furnace with Low CO2 Emission—
Keiichiro KashimuraKazuhiro NagataMotoyasu Sato
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2010 Volume 51 Issue 10 Pages 1847-1853

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Abstract

A concept of ore refining by microwave heating and a model of the microwave smelting furnace were proposed in order to build the first prototype furnace for efficient iron ore refining. The repose and wall friction angles were measured for powdery ores (mined in Robe River, Australia), and the electromagnetic field distribution was analyzed through numerical calculation to design the furnace.
The hearth angle needs a certain amount of degrees, and the degrees must be less than 19.8-degrees in perspective of the mass transfer. A reverberator type furnace was adequate and utilizeed the energy efficiently. The reflected output reached the maximum when the electric wall was made at the cone surface.

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© 2010 The Japan Institute of Metals and Materials
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