Title

SUCCESSFUL UPGRADE OF THE PULVERISED COAL INJECTION FACILITY AT ARCELORMITTAL GENT, BELGIUM

SUCCESSFUL UPGRADE OF THE PULVERISED COAL INJECTION FACILITY AT ARCELORMITTAL GENT, BELGIUM

Authorship

Daelman, Alain; Velde, Frederik Van De; Mahowald, Pierre; Muller, Ben

Daelman, Alain

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Velde, Frederik Van De

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Mahowald, Pierre

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Muller, Ben

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DOI

10.5151/2594-357X-23947

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Abstract

ArcelorMittal Gent is a maritime steel production facility and the furthermost integrated plant in the ArcelorMittal Group. Located in Belgium, Western Europe, AM Gent is employing 4.700 people with an annual production of 5 million tonnes of flat steel products for the automotive sector and for high-quality applications. Since June 2006 the steel production facility has been part of ArcelorMittal, the world's leading steel and mining company. ArcelorMittal is active in 60 countries and employs about 245.000 people worldwide. Nowadays AM Gent operates two Blast Furnaces providing a yearly hot metal production of 2.13 million tons for BF A and 1.95 million tons for BF B in 2012. These results have been achieved in combination with pulverised coal injection rates of up to 235 kg/tHM resulting in coarse coke rates of down to 210 kg/tHM. The technology to inject pulverised coal into both Blast Furnaces at Gent was initially introduced in 1987. The original design capacity of the grinding and drying plants as well as of the two pulverised coal injection facilities were determined to 30 t/h each. Nevertheless, pulverised coal preparation and injection capacities have continuously been upgraded ever since. Between 2008 and 2012 a third GAD plant was installed while implementing significant upgrades to the PCI system, thus aiming for injection rates up to 70 t/h for each Blast Furnace. This was achieved by upgrading the existing conveying hoppers, adding new conveying lines, replacing the injection lines and finally upgrading the complete system from static to dynamic distribution.

ArcelorMittal Gent is a maritime steel production facility and the furthermost integrated plant in the ArcelorMittal Group. Located in Belgium, Western Europe, AM Gent is employing 4.700 people with an annual production of 5 million tonnes of flat steel products for the automotive sector and for high-quality applications. Since June 2006 the steel production facility has been part of ArcelorMittal, the world's leading steel and mining company. ArcelorMittal is active in 60 countries and employs about 245.000 people worldwide. Nowadays AM Gent operates two Blast Furnaces providing a yearly hot metal production of 2.13 million tons for BF A and 1.95 million tons for BF B in 2012. These results have been achieved in combination with pulverised coal injection rates of up to 235 kg/tHM resulting in coarse coke rates of down to 210 kg/tHM. The technology to inject pulverised coal into both Blast Furnaces at Gent was initially introduced in 1987. The original design capacity of the grinding and drying plants as well as of the two pulverised coal injection facilities were determined to 30 t/h each. Nevertheless, pulverised coal preparation and injection capacities have continuously been upgraded ever since. Between 2008 and 2012 a third GAD plant was installed while implementing significant upgrades to the PCI system, thus aiming for injection rates up to 70 t/h for each Blast Furnace. This was achieved by upgrading the existing conveying hoppers, adding new conveying lines, replacing the injection lines and finally upgrading the complete system from static to dynamic distribution.

Keywords

Pulverised coal injection; Dynamic distribution; Plant upgrade; Individual flow control.

Pulverised coal injection; Dynamic distribution; Plant upgrade; Individual flow control.