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《Iron and Steel》 2014-01
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Water Model Test on Duplex Process for Steel Making

YANG Wen-yuan;HOU Chun;CUI Huai-zhou;GAO Wei-tao;WANG Ming-lin;Metallurgical Process Research Institute,Central Iron and Steel Research Institute;Anshan Research Institute of Thermo-Energy;National Engineering Research Center of Continuous Casting Technology;  
The basic parameters of bath flow were simulated by water model under different blowing conditions of oxygen lance nozzle and conditions of duplex process. The results show that the effect of increasing blowing on shortening mixing time is not obvious when the strength of bottom blowing gas of dephosphorization reached 0. 30 m3/( t·min). The mixing time is extended 63% when there is 10% scrap. Decarburization with high strength oxygen supply( 5 m3/( t·min)),the splashing ratio can be greatly improved than with normal strength oxygen supply. The splashing ratio is reduced when the holes arranged interlaced nozzle was adopted and the ratio of converter capacity was increased.
【CateGory Index】: TF713
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