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高比例褐铁矿烧结技术研究金俊1,武轶1,江吉惠1(1.安徽省马鞍山市马鞍山钢铁股份有限公司技术中心)摘 要:通过对烧结配矿优选试验,不同R,SiO2和MgO含量试验,不同的石灰石粉粒度试验结果的研究分析,提出了在高配比褐铁矿条件下适宜的配矿方案及合理的工艺参数.试验结果表明:石灰石粉粒度对烧结指标的影响较大.减少石灰石粉中<1 mm部分的比例,可使烧结生产率显著提高,烧结矿转鼓强度改善,固体燃耗降低.关键词:褐铁矿; 烧结; 配矿; 石灰石......
nucleation mechanism. Key words: AZ31 magnesium alloy; grain refinement; limestone ore; microstructure; ultrasonic treatment 1 Introduction Mg-Al alloys should be the most commercially used, because...Trans. Nonferrous Met. Soc. China 28(2018) 1103-1113 Effect of limestone ores on grain refinement of as-cast commercial AZ31 magnesium alloys Xuan LIU1, Si-qi YIN2, Zhi-qiang ZHANG2, Qi-chi LE2, Ji......
Evolvement of permeability of ore granular media during heap leaching based on image analysis YANG Bao-hua(杨保华)1, 2, WU Ai-xiang(吴爱祥)3, JIANG Huai-chun(江怀春)4, CHEN Xue-song(陈学松)1 1. School...; Abstract: The column leaching experiment of ore granular media was carried out with the home-made multi-functional experimental apparatus and the pore structure......
J. Cent. South Univ. Technol. (2007)04-0568-07 DOI: 10.1007/s11771-007-0109-x Bainiuchang super-large silver-polymetallic ore deposit related to granitic magmatism in Mengzi, Yunnan LIU Ji-shun(刘继... and Metallurgy Co. Ltd., Mengzi County, Yunnan 661100, China) ________________________________________________________________________________ Abstract: Bainiuchang silver-polymetallic ore deposit......
, the chromite ore is processed by roasting with sodium carbonate at 1 200 ℃ in a rotary kiln with the addition of limestone and dolomite, yielding only 75% of chromium extraction[2]. Further... Effect of mechanical activation on alkali leaching of chromite ore ZHANG Yang(张 洋)1, 2, ZHENG Shi-li(郑诗礼)1, DU Hao(杜 浩)1, XU Hong-bin(徐红彬)1, ZHANG Yi(张 懿)1 1. National Engineering Laboratory......
J. Cent. South Univ. Technol. (2010) 17: 732-737 DOI: 10.1007/s11771-010-0548-7 Influence of flux additives on iron ore oxidized pellets FAN Xiao-hui(范晓慧), GAN Min(甘敏), JIANG Tao(姜涛), YUAN Li...; Abstract: Six additives, i.e., limestone, lime, magnesite, magnesia, dolomite and light-burned-dolomite, were added......
J. Cent. South Univ. (2017) 24: 2932-2939 DOI: https://doi.org/10.1007/s11771-017-3707-2 Hydration properties and thermal analysis of cement-based materials containing limestone powder ZHOU Wei(周伟)1... properties of cement-based materials containing various proportions of limestone powder as a partial replacement for ordinary Portland cement, were investigated and reported. Both compressive......
J. Cent. South Univ. Technol. (2008) 15(s1): 475-478 DOI: 10.1007/s11771-008-403-2 Experimental study on rheological deformation and stress properties of limestone TANG Ming-ming (唐明明), WANG Zhi... indicate that the strain change always lags behind the increase of stress, and the long-term strength of the limestone is about 80.6% of the stress at the volumetric strain reversal which is obtained......
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Si–O–Si bonds in iron ore tailings(IOTs) in concrete. Limestone and IOTs were used to investigate the influence of different types of coarse aggregates on the compressive strengths of concrete samples...Reconstruction of broken Si–O–Si bonds in iron ore tailings (IOTs) in concreteJuan-hong Liu1,2,3,Yu-cheng Zhou1,2,3,Ai-xiang Wu1,3,Hong-jiang Wang1,31. School of Civil and Resource Engineering......