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| MODEL EXPERIMENTAL STUDY OF FLUIDIZATION OF IRON CONCENTRATE ORE IN BULK |
| ZHOU Jian1，2，JIAN Qiwei1，WU Xiaohong3，LI Ning3，ZHU Yaomin1 |
| (1. Department of Geotechnical Engineering，Tongji University，Shanghai 200092，China；2. Key laboratory of Geotechnical and Underground Engineering of Ministry of Education，Tongji University，Shanghai 200092，China；3. Shanghai Entry-exit Inspection and Quarantine Bureau，Shanghai 200135，China) |
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Abstract By the experiments of shaking table，investigations of the fluidization of iron concentrate ore in bulk under dynamic loading have been launched. With the use of digital image capture and processing technology，the law of fluidization evolution is revealed；and the effects of different influencing factors are analyzed，such as moisture content，acceleration，dense degree. The results show that the fluidization of iron concentrate ore is mostly influenced by moisture content，which exists a critical value；and it hardly affected by acceleration when moisture content below 8%. At the same time，it can be postponed but cannot be blocked by the increase of dense degree. The article also gives some suggestion about safety margin of iron concentrate ore?s moisture content and the measures on preventing the fluidization. The research has played a significant role in better understanding the fluidization of iron concentrate ore.
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Received: 03 June 2013
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LI Botao1, 2, 3, TAN Yuxuan1, LIN Haifei4, 5*, WEI Jianping1, 2, 3, ZHANG Hongtu1, 2, 3, LI Shugang4, 5, WEI Zongyong4, 5, WANG Pei4, LUO Rongwei4, LIU Yanwei1, 2, 3. Mechanical properties and mesoscopic damage evolution of coal under liquid-nitrogen freezing at different initial temperatures[J]. , 2026, 45(6): 1757-1772. |
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2013, Vol. 32 
