Experimental study on steelmaking using limestone instead of lime as the slagging material in 100t converter
LI Chen- xiao1,2,LI Hong1,2，ZHOU Bao 1,2，L Yan- chun 2,3，QIN Deng- ping3，WEI Shang- hao2,3
（1. State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing， Beijing 100083, China 2. Metallurgical and Ecological Engineer School, University of Science and Technology Beijing， Beijing 100083, China 3. Qinhuangdao Shouqin Metal Materials Co., Ltd., Qinhuangdao 066326, Hebei, China）
Abstract：The results of the experiments on steelmaking using limestone instead of lime as slagging material in 100t LD of Qinhuangdao Shouqin Metal Materials company were studied. The results showed that it had achieved good metallurgical effect by using limestone for slagging in singer- slag process or double slag forming process in the converter. Under the condition of charging amount of CaO decreased by 28.6%, the dephosphorization rate were 85.69%, which increased by 2.54% compared with that in the lime slagging process, and the P element had an uniform distribution in slag; At the same time the new process can reduce the dosage of slagging material by 15kg per ton steel. Using limestone instead of lime for steelmaing can increase the amount of converter gas recovery.
李晨晓 ，李宏 ，周宝 ，吕延春 ，秦登平，危尚好. 100t转炉石灰石代替石灰造渣炼钢试验研究[J]. 中国冶金, 2015, 25(12): 22-26.
LI Chen- xiao,,LI Hong，ZHOU Bao ，L Yan- chun ，QIN Deng- ping，WEI Shang- hao,. Experimental study on steelmaking using limestone instead of lime as the slagging material in 100t converter. China Metallurgy, 2015, 25(12): 22-26.
2015, Vol. 25 
