论文部分内容阅读
加重质的流动状态对振动流化床中细粒煤的有效分选起着决定性的作用，通过理论分析及试验研究，提出了以两个并联扩散模型描述适合于细粒煤分选的振动流化床加重质流动模型，全面分析了振动参数、气流参数等对加重质流动模型的影响，得出了振动强度是决定加重质平均停留时间及有效扩散系数的主导因素，并建立了床层不同区域中振动强度与有效扩散系数的关系模型．
The aggravating flow state plays a decisive role in the effective separation of fine coal in a vibrating fluidized bed. By theoretical analysis and experimental study, two parallel diffusion models are proposed to describe the vibration flow suitable for fine coal sorting The effect of the vibration parameters and the airflow parameters on the aggravating flow model is analyzed. It is concluded that the vibration intensity is the dominant factor that determines the weighted average residence time and the effective diffusion coefficient. Model of Relationship between Vibration Intensity and Effective Diffusion Coefficient in a Region.