Foaming in Electric Arc Furnace Part I: Laboratory Studies of Enthalpy Changes of Carbonate Additions to Slag Melts

被引：11

作者：

Chychko, Andrei ^{[1
]}

Seetharaman, Seshadri ^{[1
]}

机构：

[1] Royal Inst Technol, S-10044 Stockholm, Sweden

来源：

METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE | 2011年 / 42卷 / 01期

关键词：

Foam; Dolomite; Heat Effect; Foam Height; Slag Viscosity;

D O I：

10.1007/s11663-010-9447-4

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In the present work, a modified thermal analysis technique was used for studying the heat effect of slag foaming with carbonates addition. Experiments were conducted by sinking limestone and dolomite pieces of defined shapes (together with iron sinkers) in molten slag and monitoring the temperature changes accompanying the decomposition of carbonates. The heat effects of dolomite and limestone decompositions were determined at 1623 K (1350 A degrees C) and 1673 K (1400 A degrees C). It was found that the decomposition energy for dolomite and limestone for the studied slag composition is in the range of 56 to 79 pct of theoretical values, which is linked to the energy-saving effect of slag foaming. No influence of sample shape on decomposition energy was found for both limestone and dolomite.

引用

页码：20 / 29

页数：10

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