Development and application of new techniques for blast furnace process control at SSAB Tunnplaat, Luleaa Works

Conference · Fri Dec 01 04:00:00 EST 1995

OSTI ID:129085

Braemming, M; Hallin, M ^[1]; Zuo, G ^[2]

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1. SSAB Tunnplaat AB, Luleaa (Sweden)
2. Luleaa Univ. (Sweden). Dept. of Process Metallurgy

SSAB Tunnplaat AB operates two blast furnaces (M1 and M2) in Luleaa. In recent years research efforts have to a great extent been aimed at the development of new techniques for blast furnace process control. An example is the installation of a burden profile measurement system, which was useful in the development of a new burden distribution praxis on the big furnace (M2), equipped with a bell-less-top. Hearth level detection and continuous measurement of the hot metal temperature in the runner are under evaluation. The purpose of these techniques is to give earlier information concerning the state of the blast furnace process. Parallel to this work, models for prediction of silicon in hot metal, the position and shape of the cohesive zone and slip-warning are being developed and tested off-line. These new models and information from new measuring techniques will be integrated into a new Operating Guidance System, hopefully resulting in a powerful tool in the efforts to stabilize blast furnace operations.

• OSTI ID: 129085
• Report Number(s): CONF-9504182--; ISBN 0-932897-99-1
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
ALARM SYSTEMS
BLAST FURNACES
COKE
DISTRIBUTION
ELECTRICAL FAULTS
EQUIPMENT INTERFACES
IRON ORES
LEVEL INDICATORS
MAN-MACHINE SYSTEMS
MATHEMATICAL MODELS
MONITORING
ON-LINE MEASUREMENT SYSTEMS
PROCESS CONTROL
PRODUCTIVITY
SPECIFICATIONS
SWEDEN
TEMPERATURE MEASUREMENT