In this paper,it is systematically introduced the characteristics of impurity distribution for slurry pipeline and effects of pigging with different types of tube cleaner by taking the pigging and descaling for a long distance high pressure slurry pipeline of iron ore concentrate with variable diameters as an example. It is found through actual pigging that the passability of pipeline could be preliminarily detected with soft foam pig and mechanical tube cleaner with leather cups of different shore hardnesses. In addition,the effect of cleaning scale for slurry pipeline with foam pig is poorer,so the me-chanical tube cleaner with stronger pigging ability should be preferred,which is with important guiding significance for pig-ging of similar slurry pipelines in the future.
关键词
矿浆管道/高压管道/变径管道/清管/除垢
Key words
slurry pipeline/high pressure pipeline/pipeline with variable diameters/pigging/descaling
维普
万方数据