Influence of Tuyere Parameters on Blast Volume Variation Estimated by Simulating the Tuyere Raceway
Based on the production data of Ansteel new No.5 BF,a research is carried out regarding the influence of raceway volume,tuyere diameter and tuyere insertion depth on the variation of blast volume with tuyere raceway assumed.The result shows when the volume of the tuyere raceway increases from 0.676 9 m3 to 0.718 6 m3,blast volume will increase from 158.02m3/min to 163.41m3/min accordingly,which is higher than the case without tuyere raceway;for the tuyeres with di-ameter of 110mm,115mm and 120mm,the blast volume will increase by 5.81 m3/min and 12.16m3/min for every 5mm en-largement of the tuyere diameter,and the increase trend of blast volume goes up with the increase of tuyere diameter as com-pared with the case without tuyere raceway;if the tuyere insertion depth is 480 mm,500 mm,520 mm or 560 mm,the blast volume will be 159.61 m3/min,159.64m3/min,159.69m3/min or 159.76m3/min respectively,that is to say,the blast volume increases with increase of the tuyere insertion depth as compared with the case without tuyere raceway,however,such increase is narrow.
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