Modern Blast Furnace Ironmaking: An Introduction
IOS Press, 2009 - Technology & Engineering - 164 pages
Describes the principles of the blast furnace process and especially the control of the process. This book focuses on the control of the blast furnace process with respect to thermal control, gas flow control and casthouse operation. It is suitable for students of metallurgy as well as for blast furnace operators and management.
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Introduction of the Blast Furnace Process
Contents and Gas Flow
Sinter Pellets Lump Ore
Injection of Coal Oil and Gas
Burden Calculation and Mass Balances
Burden Descent and Gas Flow Control
Blast Furnace Productivity and Efficiency
Hot Metal and Slag
Abrasion alkalis amount balance basicity blast furnace process blast volume blend blow–in burden descent burden distribution burden materials calculated carbon monoxide cast casthouse central gas flow centre charged chemical composition clay CO₂ cohesive zone coke layers coke particles coke quality coke rate Cold strength components compression strength decreases diameter direct reduction reactions effect Fe₂O₃ fines flame temperature free centre gas reduction gas utilisation gasified H₂ haematite heat losses higher hot blast hot metal silicon hydrogen increases input iron and slag iron oxides kg/tHM layer thickness leaves the furnace liquidus temperature lower lump m³ STP m³ STP/min magnetite manganese melting temperature melting zone mixed layer moisture ofa blast furnace Olivine oxygen oxygen balance pellets percentage permeability production rate properties raceway reduction–disintegration sinter SiO₂ slag composition softening and melting stockhouse sulphur taphole tonne hot metal top gas temperature tuyeres typical voidage wall area