| KYF型浮选机气泡特征参数分析与探讨—KYF浮选机流场测试与仿真研究(五) |
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| 引用本文： | 沈政昌,卢世杰,史帅星,陈东,杨丽君.KYF型浮选机气泡特征参数分析与探讨—KYF浮选机流场测试与仿真研究(五)[J].有色金属(选矿部分),2013(5):44-49. |
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| 作者姓名： | 沈政昌 卢世杰 史帅星 陈东 杨丽君 |
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| 作者单位： | 北京矿冶研究总院矿 矿物加工科学与技术国家重点实验室 北京 10060,北京矿冶研究总院矿 矿物加工科学与技术国家重点实验室 北京 10060,北京矿冶研究总院矿 矿物加工科学与技术国家重点实验室 北京 10060,北京矿冶研究总院矿 矿物加工科学与技术国家重点实验室 北京 10060,北京矿冶研究总院矿 矿物加工科学与技术国家重点实验室 北京 10060 |
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| 基金项目： | 国家自然科学基金面上项目资助(51074027) |
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| 摘 要： | 浮选机内气泡特征参数和流动规律的研究一直是浮选机研究的重点和难点。本文利用电导探针法和CFD数值方法研究了浮选机内气泡特征参数及其分布特性。通过电导探针法获取了浮选机内气泡直径、速度和气含率等气泡特征参数。利用CFD数值方法揭示了浮选机内气含率的分布特征,预测结果同试验观察一致。并进一步研究了浮选机关键运转参数对气含率分布的影响规律。试验结果表明,CFD预测的气含率同试验测试结果吻合。
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| 关 键 词： | CFD模拟 试验测试 浮选机 气泡特征参数 气含率分布 |
| 收稿时间： | 2013/7/19 0:00:00 |
| 修稿时间： | 2013/7/31 0:00:00 |
Analysis and Discussion of Gas Bubbles Characteristic Parameters in KYF Flotation Machine |
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| Authors: | shen zhengchang Lu shi jie Shi shuai xin Chen dong and Yang li jun |
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| Affiliation: | State Key Laboratory of Mineral Processing Science and Technology, Beijing General Research Institute of Mining and Metallurgy,State Key Laboratory of Mineral Processing Science and Technology, Beijing General Research Institute of Mining and Metallurgy,State Key Laboratory of Mineral Processing Science and Technology, Beijing General Research Institute of Mining and Metallurgy,State Key Laboratory of Mineral Processing Science and Technology, Beijing General Research Institute of Mining and Metallurgy,State Key Laboratory of Mineral Processing Science and Technology, Beijing General Research Institute of Mining and Metallurgy |
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| Abstract: | The researches on characteristic parameters and flow lows of air bubbles are the key points and difficult points of flotation machine study all the time. The air bubbles characteristic parameters and how these bubbles distribute in flotation machines were investigated by conductivity probe method and CFD numerical method in the paper. The air bubbles diameters, air bubbles velocity, gas volume fraction and so on were measured by conductivity probe method. The gas holdup distribution in flotation machines is revealed by CFD simulation, and the CFD prediction results agree with experimental observation. The impact of key operation parameters of flotation machines on gas holdup distribution was investigated further more. It is demonstrated that the gas volume fraction of CFD prediction results agree with experimental data. . |
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| Keywords: | CFD simulation experimental test flotation cell gas bubbles characteristic parameters gas holdup distribution |
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