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Study of physico-chemical properties of diatomite Algeria Application to the thermal insulation of liquid steel bath

Auteurs : Hazem MERADI, L’hadi ATOUI, Lynda BAHLOUL, Khouloud BEDOUD, Sihem BENAYACHE
Année : 2016
Domaine : Métallurgie
Type : Communication
Conférence: 4ème Conférence Internationale des Energies Renouvelables
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Mots clés : diatomite, fluorine, Tundish, steelwork, thermal insulation, DSC

Résumé :

The purpose of this paper is tocharacterize and to evaluate the diatomitepowder of Sig region (West Algeria) withoutfluorine by powder generally used in tundish tothermal insulation of steel bath contain fluorine,that affecting the environment and health ofworkers. Thermal and physicochemicalcharacterization showed different endothermicand exothermic peaks. The scanning microscopymethod was used and a large porosity wasobserved, which is very beneficial for improvingthe thermal conductivity of the product. The trialindustrial in steelwork with diatomite powder,showed a weak loss temperature of steel (10 °Cmax), and filled fully function in thermalinsulation of the steel bath.