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| Influence of Snorkel Shape on Characteristics of Flow and Mixing of RH |
| HE Qing,LIU Liu,LI Xiang-chen,XUE Li-qiang |
| Department of Metallurgical Technology, Central Iron and Steel Research Institute, Beijing 100081， China |
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Abstract The mixing time and circulation flow rate of RH with oval-shaped snorkel and round-shaped snorkel were investigated by water modeling. Compared with convention RH, under such conditions as 97709Pa of vacuum pressure and 130mm of insertion depth, the RH with oval-shaped snorkel shows obvious superiority of the circulation flow rate when gas flow is higher than 2.33m3/h. The mixing time is decreased obviously when gas flow is higher than 2.7m3/h. Change law of mixing time and circulation flow rate of RH with oval-shaped snorkel were measured at different parameters, and stream line experiment were done. It is found after analysis that mixing time and circulation flow rate of RH with oval-shaped snorkel is better with same flow rate per unit snorkel area. The circulation flow rate of RH can increase by 50% in experimental condition. At last the relationship of circulation flow rate between 2 models was established.
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Received: 06 June 2012
Published: 27 February 2013
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2013, Vol. 48 
