Development and implementation of advanced electrical operation modes for EAF/LF units in the Electric Steelmaking Shop/BOF Shop to reduce specific electricity consumption and save graphite electrodes

Reduction of specific electricity and electrode consumption for ladle furnaces (LF, EAF, electric arc heating installations) through the application of new algorithms for automatic adjustment of working curves and on-load tap changer (OLTC) positions for furnace transformers

IMPLEMENTED SOLUTIONS

The improvement of LF electrical operation modes with automatic control of OLTC positions ensures a reduction in electricity and electrode consumption, thereby lowering the cost of steel production.

New LF electrical operation modes

Advanced electrical operation modes for LF units have been developed and implemented.

Automatic switching of working curves and OLTC positions

New algorithms for automatic switching of working curves and OLTC positions for furnace transformers have been created.

Reduction of steel production costs

A reduction in the specific consumption of electricity and electrodes has been achieved, lowering the production cost of liquid steel.

Result

Regression analysis methodology

A methodology has been created to assess electricity and graphite electrode consumption based on process data using regression analysis.

Specific energy consumption reduction

LF-1: 2.29%
LF-2: 2.20%
LF-3: 2.46%

Specific electrode consumption reduction

By 18.34%

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Client

Location

GOP (Mining and Processing Plant)

Year

2023