两段式喷吹煤粉工艺应用于瑞典SSAB Oxel(o)sund 2号高炉,效果显著.结果表明:若维持风口喷吹煤粉量不变,两段式喷吹煤粉工艺可以提高喷煤量,降低焦比,当第二段喷吹煤粉量5 kg/t时,焦比下降5 kg/t;改善高炉料柱透气性,降低料柱压差,使炉内煤气流分布更加合理,有助于高炉操作稳定,提高煤气利用率;第二段喷入的煤粉可以在高炉内被充分利用,并可以有效地抑制焦炭强度在高炉内的劣化,有助于降低在实施大喷煤工艺时对焦炭质量的苛刻要求;有助于减少炉墙热损失.
参考文献
| [1] | Naruse I.;Nakayama K. .Reaction Behavior of Coke Lump in Raceway Blast furnace with Pulverized Coal Injection[J].ISIJ International,2000(8):744-748. |
| [2] | W. Kalkreuth;A.G. Borrego;D. Alvarez .Exploring the possibilities of using Brazilian subbituminous coals for blast furnace pulverized fuel injection[J].Fuel,2005(6):763-772. |
| [3] | Chung J S;Baquet I G;Fresno M A.Upgrading of Pulverized Coal Injection Systems[A].Bombay,India,2004:365-374. |
| [4] | Fruhling R;Weber A;Rafi M.Co-injection of Pulverized Coal and Natural Gas into the Blast Furnace[A].香港,2005:481-489. |
| [5] | 徐万仁,李荣壬,钱晖.宝钢高炉大量喷煤时煤粉在炉内的利用状况[J].钢铁,2000(05):5-9,29. |
| [6] | 沈峰满,朱蒙,沈岩松.高炉两段式喷吹煤粉新工艺[J].钢铁,2002(10):5-7,22. |
| [7] | SHEN Feng-man;SHEN Yan-song;LIU Dai-de.Development and Application of Bi-segment Pulverized Coal Injection Into Blast Furnace[A].Tokyo Japan,2003:209-216. |
| [8] | 沈峰满;李永祥;袁光旭 等.高炉炼铁两段式喷吹煤粉工艺方法[P].ZL 00123294.0,2003. |
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