Hydrodynamic Characteristics of Dual-Impeller Configurations in a Multiple-Phase Stirred Tank
文献类型:会议论文
作者 | Wang, T.; Yu, G. Z.; Yong, Y. M.; Yang, C.; Mao, Z. S. |
出版日期 | 2010 |
会议名称 | Joint 7th International Symposium on Catalysis in Multiphase Reactors (CAMURE-7)/6th International Symposium on Multifunctional Reactors (ISMR-6) |
会议日期 | AUG 23-26, 2009 |
会议地点 | Montreal, CANADA |
关键词 | MECHANICALLY AGITATED CONTACTOR PITCHED-BLADE TURBINE POWER-CONSUMPTION SOLID SUSPENSION MIXING TIME LIQUID-PHASE HOMOGENIZATION ENERGY PARTICLE SUSPENSION GAS REACTOR |
期号 | 3 |
页码 | 1001-1009 |
其他题名 | Ind. Eng. Chem. Res. |
中文摘要 | Experiments are carried out in a baffled flat-bottom stirred tank to test live dual-impeller configurations, including a new type of impeller, alternate blade disk turbine (ABDT). Power consumptions in gas-liquid, liquid-solid, and gas-liquid-solid systems are determined by the shaft-torque method. It is found that the configuration with all axial impeller consumes less energy than that with a radial one in all multiple-phase systems. The correlations between power input and gas flow rate or solid concentration are also discussed. Power number reaches a limit with the increase of Reynolds number in liquid-solid systems. Aeration is proved to be harmful to solid suspension. Mixing time and solid particle concentration are measured by the electric conductivity method and Powder Voidmeter PC-6, respectively. The mixing modes (axial and radial) are proposed in the light of impeller types and flow patterns. The experimental results show that the mixing time of the double radial impeller configuration is the shortest, while the double axial impeller combination performs Worst. Judging from the axial solid particle concentration distribution and overall Suspension uniformity, the combination taking pitched blade turbine downflow (PBTD) as the lower impeller achieves the best solid Suspension. |
收录类别 | ISTP |
会议网址 | |
会议录 | Industrial & Engineering Chemistry Research
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语种 | 英语 |
源URL | [http://ir.ipe.ac.cn/handle/122111/11237] ![]() |
专题 | 过程工程研究所_研究所(批量导入) |
推荐引用方式 GB/T 7714 |
Wang, T.,Yu, G. Z.,Yong, Y. M.,et al. Hydrodynamic Characteristics of Dual-Impeller Configurations in a Multiple-Phase Stirred Tank[C]. 见:Joint 7th International Symposium on Catalysis in Multiphase Reactors (CAMURE-7)/6th International Symposium on Multifunctional Reactors (ISMR-6). Montreal, CANADA. AUG 23-26, 2009. |
入库方式: OAI收割
来源:过程工程研究所
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