| 钻孔水力采矿中气举模型的建立 |
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| 引用本文： | 裴江红,廖振方.钻孔水力采矿中气举模型的建立[J].煤炭学报,2010,0(3):373-376. |
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| 作者姓名： | 裴江红 廖振方 |
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| 作者单位： | 重庆大学机械工程学院，湖南工业大学机械工程学院 |
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| 基金项目： | 科技部国际科技合作项目(2008DFA70300);;国家自然科学基金资助项目(50504021) |
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| 摘 要： | 为得到在钻孔水力开采关键设备中气举（气力提升装置）设计所需要的压降参数，建立了气举提升管内的气－液－固三相流压降数学模型。该模型基于压力能量消耗最小原理，得出了在环状流态时具有相对稳定的流动状态。针对在此流动状态下，通过对修正后的气－液和气－固两相流压降数学模型的叠加，得到了适合于对小颗粒、均匀粒径矿砂开采时，工作状态下的气举内气－液－固三相流压降数学模型。模型求解与实验结果表明，该模型计算结果与实验数据比较吻合。
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| 关 键 词： | 钻孔水力开采 气举模型 压降 三相流 |
| 收稿时间： | 2009-08-31 |
Mathematic model of air-lift in borehole hydraulic jet mining |
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| PEI Jiang-hong,LIAO Zhen-fang.Mathematic model of air-lift in borehole hydraulic jet mining[J].Journal of China Coal Society,2010,0(3):373-376. |
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| Authors: | PEI Jiang-hong LIAO Zhen-fang |
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| Affiliation: | 1.College of Mechanical Engineering/a>;Chongqing University/a>;Chongqing 400044/a>;China/a>;2.The Modern Jetting Department/a>;Hunan University of Technology/a>;Zhuzhou 412008/a>;China |
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| Abstract: | To get the pressure drop parameters for the design of air-lift in the borehole hydraulic jet mining,the model of three-phase flow was developed.Based on the theory of pressure energy consumption mining,a quite steady flow state of annular flow in lift was obtained.The model presented here integrated two sub-models of gas-liquid and gas-solid to produce a design model for three-phase gas-liquid-solid in annular flow,which was adapted to exploit small and uniform diameter particles.The results show that calcu... |
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| Keywords: | borehole hydraulic jet mining air-lift model pressure drop three-phase flow |
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