大颗粒流化床内气固两相流稳定性试验研究  

Investigation on characteristics of gas-solid two-phase flow in the fluid bed with coarse granules

作　　者：杨魁[1,2] 徐德龙[3] 

机构地区：[1]四川建筑职业技术学院,四川德阳618000 [2]重庆大学材料科学与工程学院,重庆630000 [3]西安建筑科技大学,陕西西安710055

出　　处：《四川建筑科学研究》2009年第4期190-192,277,共4页Sichuan Building Science

基　　金：国家自然科学基金重点资助项目(50432040)

摘　　要：以自身开发的大颗粒流化床冷态试验模型为研究对象，分析了粒径在4．0～8．0mm范围内的大颗粒物料发生稳定流态化所需工艺参数的取值范围、各参数间的相互关系；分析了大颗粒流化床容易出现的空床、棚料等异常现象时工艺参数突变特征，提出了确保流化床稳定运行的三项可行措施。对进一步开展热态模型研究有借鉴作用。The coarse particle fluid bed under room temperature which was developed by authors themselves was researched in the paper. They analyzed the parameters （Uf,AP and coarse granule quantity in the bed ） scale range, the correlations about the coarse particle size from 4. 0 mm to 8. 0 mm, which decided the fluid bed runs steadily; discussed the exceptional characteristics of the above parameters when the fluid bed works wrongly. Three useful control methods for the fluid bed steady running were discovered. It is important to research thermal state model in the future.

关 键 词：大颗粒 流化床 稳定性试验研究 

分 类 号：O552.6[理学—热学与物质分子运动论]