岩土力学2012，Vol.33Issue(6)：1653-1659,7.
高黏性铝土矿放矿流动性试验与微观力学研究
Hopper discharge experiment for high viscosity bauxite flow and micromechanics research
摘要
Abstract
According to the situation of CHINALCO Henan Branch, combined with ore discharge mechanics theory, similarity experiment and discrete element simulation technology, we deeply research discharge mechanism and main factors that influence ore flow in hopper in both macro and micro conditions. Discrete element simulation shows the dynamic process of mutual interaction between particles-particles, particles-walls. According to the results, we design a new internal vertical flow-aiding device, achieve a better effect in field experiment. New device not only greatly improves the flow capability of ore in hopper, solves the blocking, arching, stocking problems which troubled CHINALCO for several decades, optimizes the mechanical relationship between ore and hopper, reduces wall dynamic contact pressure, but also largely improves the discharge efficiency and safety factor and reduces the labor intensity.关键词
放矿力学理论/相似试验/离散元数值模拟/仓内悬垂式振动助流器Key words
ore discharge mechanics theory/ similarity experiment/ DEM simulation/ internal vertical vibration flow-aiding device分类
矿业与冶金引用本文复制引用
张春阳,曹平,范祥,林杭,万琳辉..高黏性铝土矿放矿流动性试验与微观力学研究[J].岩土力学,2012,33(6):1653-1659,7.基金项目
国家自然科学基金项目(No.51174228) （No.51174228）
湖南省博士生科研创新立项项目(No.CX2011B117) （No.CX2011B117）
湖南省自然科学基金资助项目(No.11JJ4043) （No.11JJ4043）
中南大学自由探索计划资助(No.2011QNZT086) （No.2011QNZT086）
中南大学米塔尔创新项目资助(No.11MX22). （No.11MX22）
