某高压长距离变径铁精矿矿浆管道清管除垢实践

Practices on Pigging and Descaling for High Pressure Long Distance Slurry Pipeline of Iron Ore Concentrate with Variable Diameters

文章以某长距离高压变径铁精矿矿浆管道清管除垢为例,系统介绍了矿浆管道的杂质分布特征以及不同类型清管器的清管效果。通过实际清管发现,采用软质泡沫清管器和不同邵氏硬度皮碗的机械清管器可初步探测出管道的可通过性。另外,泡沫清管器对矿浆管道的结垢物清理效果较差,应优先采用清管能力更强的机械清管器,这对今后类似矿浆管道的清管具有重要的指导意义。

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 mechanical tube cleaner with stronger pigging ability should be preferred,which is with important guiding significance for pigging of similar slurry pipelines in the future.