增压流化床燃烧用的煤水混合物流变特性研究  

A Study on the Rheological Properties of Coal-water Paste Fired in a Pressurized Fluidized Bed Combustor

作　　者：卢平 章名耀 徐跃年 东南大学 

机构地区：[1]热能工程研究所,,江苏南京210096

出　　处：《热能动力工程》2001年第5期488-490,共3页Journal of Engineering for Thermal Energy and Power

摘　　要：通过试验研究 ,系统分析了水分、配比、添加石灰石及管径变化等对水煤膏流变特性的影响。试验结果表明 ,通过适当的配制 ,水煤膏在很低的水分下 (Wt=2 2 16 % )能够获得良好的流动性能 ,石灰石的添加可以明显地降低水煤膏的管内阻力 ,改善水煤膏的输送性能。试验得到的流变参数表明 。By way of experimental research a systematic analysis was conducted of the influence on the rhelogical properties of coal water paste (CWP) of such a variety of factors as moisture content, particle distribution, addition of limestone and pipe diameter change, etc. The results of the experimental investigation indicate that the CWP will have good flowing properties at a very low moisture content (Wt = 22.16%) if a proper particle distribution has been selected. The addition of limestone can markedly decrease the flow resistance of CWP in pipeline and improve its transport characteristics. The data obtained from experiments show that the rheological properties of the CWP approximate those of a Bingham fluid.

关 键 词：增压流化床 水煤膏 流变特性 试验研究 煤水混合物 燃烧 PFBC 

分 类 号：TQ534[化学工程—煤化学工程] TK16[动力工程及工程热物理—热能工程]