ISSN 2594-357X
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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..
Palavras-chave
Blast furnace (BF); Blast pressure; Pressure loss; Blast momentum.
Blast furnace (BF); Blast pressure; Pressure loss; Blast momentum.
Como citar
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
