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《Gangtie》 1988-10
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INDUSTRIAL EXPERIMENT ON TOP-COMBUSTION STOVE OF ACL TYPE

Cheng Lanbo Zhang Jiale (Anshan Iron & Steel Co.)  
A Top-Combustion stove of ACL type, developed through laboratory and pilot test, was carried out the industrial experiment at Lengshuijiang Iron and Coke Works in March 1987, and important data of operation had been obtained. Through more than 4 months operation it showed that if only blast furnace gas being used the highest dome temperature reached 1375℃ the average 1267℃ and the maximum blast temperature at stove exit was 1320℃ the average 1267℃ short-flame burner has been operated with high stability and at a smaller excess air ratio of 1.02-1.05. Designed construction of ACL type stove is logical and the radial-temperature distribution is more uniform, so, construction deficiencies of conventional type have been avoided. The operation of top-combustion stove is the same as the traditional one and much safer. Investment per 1 m~2 heating surface in top-combustion stove is 4% higher than that for the reconstruction of internal combustion type, but the heat efficiency and blast temperature obtained are much higher. These would result in obvious benefits. It is suitable and applicable to either the reconstruction of old blast furnaces or building new ones.
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【Co-references】
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4 CHEN Yi sheng 1,ZHANG Jie yu 2,NA Shu ren 2, HE You duo 1,DONG Wei jun 3,XING Ming 3,BAO Yao zong 3 (1 Institute of Metallurgical Engineering,UIST Baotou,Baotou 014010,China;2 Department of Metallurgical and Chemical Engineering,UIST Baot;Computer simulation of cooling gas distributions in the hot blast stove(Ⅱ)[J];JOURNAL OF BAOTOU UNIVERSITY OF IRON AND STEEL TECHNOLOGY;1999-02
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6 ZHANG Yin 1 ,HE You duo 1,HUANG Xiao yu 2,SHANG Qing hua 2,LI Heng xu 2,WANG Mi 2 (1.Institute of Metallurgical Engineering,UIST Baotou,Baotou 014010,China;2.Ironmaking Factory,Anshan Iron and Steel Group Company,Anshan 114000,China);Study on mathematical model of combustion process of new grid type ceramic burners[J];Journal of Baotou University of Iron and Steel Technology;2001-02
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1 ZHANG Jiaju(Kunming Science & Technology University);ON LIMIT OF COAL INJECTION IN BF[J];IRON AND STEEL;1996-11
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