王阳, 魏小林, 田文栋, 盛宏至. 流化床中废弃物颗粒的横向扩散特性[J]. 力学与实践, 2006, 28(4). DOI: 10.6052/1000-0992-2005-222
引用本文: 王阳, 魏小林, 田文栋, 盛宏至. 流化床中废弃物颗粒的横向扩散特性[J]. 力学与实践, 2006, 28(4). DOI: 10.6052/1000-0992-2005-222
THE LATERAL DISPERSION CHARACTERISTICS OF SOLID WASTE PARTICLES IN ICFB[J]. MECHANICS IN ENGINEERING, 2006, 28(4). DOI: 10.6052/1000-0992-2005-222
Citation: THE LATERAL DISPERSION CHARACTERISTICS OF SOLID WASTE PARTICLES IN ICFB[J]. MECHANICS IN ENGINEERING, 2006, 28(4). DOI: 10.6052/1000-0992-2005-222

流化床中废弃物颗粒的横向扩散特性

THE LATERAL DISPERSION CHARACTERISTICS OF SOLID WASTE PARTICLES IN ICFB

  • 摘要: 在试验基础上计算得到内循环流化床和鼓泡床中3种轻质废弃物颗粒和两种重质颗粒的横向扩散系数,发现废弃物颗粒的变形程度、密度、尺寸及布风板形状和布风方式均影响其扩散系数. 轻质颗粒的运动符合扩散规律,重质粒子的运动则不符合该规律. 文中从流化床中气体颗粒流和不同物性废弃物相互作用的角度简要分析了物料的扩散特性.

     

    Abstract: In the present paper, based on the experimental data, thelateral dispersion coefficients of five kinds of solid waste particles arecalculated in the ICFB and the bubbling bed. The results indicate thatthe followingfactors influence dispersion coefficients: the distortion extent, thedensity and the size of the particles; the shape of the air distributor andthe mode of air distribution. The movements of light particles followthe law of diffusion; on the other hand, the movements of heavy particlesdo not. The particles' lateral dispersion characteristics are described and explained briefly by the interaction of gas-particle flows and waste particles with various matter properties.

     

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