Dust control and engineering performance of stainless steel AOD slag
LU Yan1， NA Xian-zhao1， QI Yuan-hong1， ZHEN Chang-liang2
（1. State Key Laboratory of Advanced Steel Processes and Products， Central Iron and Steel Research Institute， Beijing 100081， China 2. Ironmaking Department， Tangshan Iron and Steel Group Co.， Ltd.， Tangshan 063016， Hebei， China）
Abstract：Owing to the lattice transformation during cooling process， the expansion and pulverization of stainless steel AOD slag would happen. Then， it will result in dust pollution easily. And it is indicated that the lattice transformation from β-C2S to γ-C2S can be effectively controlled by injecting boron modified agents during the deslagging， and the pulverization rate of dust was reduced by 90.1%. The harmless treated stainless steel AOD slag can be used as cement mortar admixture as resource utilization， and the substitution rate for cement can be 0-30%. Meanwhile， according to the leaching toxicity test on AOD slag and its cement test block， the leaching of total Cr and Cr6+ were both reduced to below the standard value. Thus， resource utilization of the treated stainless steel AOD slag can be realized.
收稿日期: 2014-08-12
出版日期: 2015-04-13
引用本文:
吕 岩，那贤昭，齐渊洪，甄常亮. 不锈钢AOD渣粉尘控制及其工程性能[J]. 钢铁, 2015, 50(4): 76-83.
LU Yan， NA Xian-zhao， QI Yuan-hong， ZHEN Chang-liang. Dust control and engineering performance of stainless steel AOD slag. Iron and Steel, 2015, 50(4): 76-83.
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[3]
Benarchid M Y, Diouri A, Boukhari A, et al．Hydration of iron-phosphorus doped dicalcium silicate phase[J]．Materials Chemistry and Physics, 2005, 94: 190-194．
2015, Vol. 50 
