粉料气动输送中的流动状态及管道磨损的研究  

FLOW STATE AND TUBE WEAR DURING POWDER PNEUMATIC TRANSPORT

作　　者：杨文远[1] 杨同春[2] 周金林[2] 高建军[2] 

机构地区：[1]冶金部钢铁研究总院16室,高级工程师北京100081 [2]冶金部钢铁研究总院

出　　处：《钢铁研究学报》1992年第2期1-7,共7页Journal of Iron and Steel Research

摘　　要：粉料气动输送中的气流速度由高到低变化时,气—固两相流的流动状态依次出现均匀流,层状流,脉动流和塞状流。在粉料输送管道磨损问题中,研究了粉料粒度、输送浓度和输送气体压力对磨损量的影响。试验中测定了气—固两相流的射流膨胀角及冲击面积,探讨了中心射流与外层射流的分布及其影响因素。With the change in carrier gas flow rate from high to low in powder material pneumatic transport, gas-solid two-phase flow occurs in a sequence of homogeneous flow, layer-built flow, pulse flow and pushing flow.Of the problems of tube wear with powder, the influence of particle size, concentration and pressure of carrier gas on erosion was studied. In laboratory experiments, the expansion angle and impact area of gas-solid two-phase jet, distribution of the central and outer jer flow as well as the influencing factors were measured.

关 键 词：管道 流动状态 粉料 磨损 

分 类 号：U171[交通运输工程]