【气固逆流式多层浅层流化床层间粒子的逆压输送】.pdf

浙江大学研究生学位论文用纸 P(i) 摘要针对具有良好生产性能的气国逆流式多层浅尽流化床,本文研容了其稳定连续操作的关键问题一尽间粒子物料的逆压稳空输送.在分析、综合前人开发的溢流管操作性能的基础上,考察了带回流料射的气控式园柱溢流曾(以下简称溢流管)的操作方式和输料能力.为方便溢流管操作的分析和设计计算,息义了表征控制气(本主称松动气)在溢流管的主支管内分配性能的气体分配比.简称气配比:α=V/Ve,Vy—主管内气体流号,V—松动气易使用修正的Ergm方程计算溢流管主管内气国两相的流动,得到了气配比。

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浙江大学研究生学位论文用纸 P(V) i)the downcomer is bemg started when the solids in the oropmfunuwuu!od!dhg i) thenas ratof selids is decreased violently frem Inaximumwhen the superficialvelocity is greater thon the terminal velocity of partiale.Therefore, the range of mass rate in the dowoncomeris limited.