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Proceedings of the Ironmaking, Iron Ore and Agglomeration Seminars

ISSN 2594-357X

42º Seminário de Redução de Minério de Ferro e Matérias-primas / 13º Seminário Brasileiro de Minério de Ferro / 6th International Congress on the Science and Technology of Ironmaking — vol. 6, num.6 (2012)

Title

FUNDAMENTAL DISCUSSION ON PRESSURE LOSS IN BLAST SYSTEM OF BF

FUNDAMENTAL DISCUSSION ON PRESSURE LOSS IN BLAST SYSTEM OF BF

Authorship

Ma, Ze-jun; Chen, Hui; Zhang., Wei-dong

Ma, Ze-jun
Ma, Ze-jun

I am this author

Chen, Hui
Chen, Hui

I am this author

Zhang., Wei-dong
Zhang., Wei-dong

I am this author

DOI

10.5151/2594-357X-22277

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Abstract

Based on the fluid dynamics, the pressure loss was calculated for blast system of BF, and the pressure loss of blast system was analyzed theoretically. Furthermore, the effect of pressure loss in blast system on blast velocity and blast momentum in front of tuyere was discussed. According to the performance of 5,000 m3 super capacity blast furnace. Firstly, the pressure loss of blast system is about 11% of the measured pressure at the end of hot blast main. Secondly, under the same blast volume, the blast velocity and blast momentum with considering the pressure loss of blast system are higher than those without the pressure loss of blast system. Finally, in order to keep smooth running of BF, the upper limit of blast velocity should be controlled below 280 m/s, and the upper limit of blast momentum should be suggested blow 18,000 kg(f)•m/s..

 

Based on the fluid dynamics, the pressure loss was calculated for blast system of BF, and the pressure loss of blast system was analyzed theoretically. Furthermore, the effect of pressure loss in blast system on blast velocity and blast momentum in front of tuyere was discussed. According to the performance of 5,000 m3 super capacity blast furnace. Firstly, the pressure loss of blast system is about 11% of the measured pressure at the end of hot blast main. Secondly, under the same blast volume, the blast velocity and blast momentum with considering the pressure loss of blast system are higher than those without the pressure loss of blast system. Finally, in order to keep smooth running of BF, the upper limit of blast velocity should be controlled below 280 m/s, and the upper limit of blast momentum should be suggested blow 18,000 kg(f)•m/s..

Keywords

Blast furnace (BF); Blast pressure; Pressure loss; Blast momentum.

Blast furnace (BF); Blast pressure; Pressure loss; Blast momentum.

How to refer

Ma, Ze-jun; Chen, Hui; Zhang., Wei-dong. FUNDAMENTAL DISCUSSION ON PRESSURE LOSS IN BLAST SYSTEM OF BF , p. 1675-1683. In: 42º Seminário de Redução de Minério de Ferro e Matérias-primas / 13º Seminário Brasileiro de Minério de Ferro / 6th International Congress on the Science and Technology of Ironmaking, Rio de Jabeiro, 2012.
ISSN: 2594-357X , DOI 10.5151/2594-357X-22277