The work principle of inclined pipe and setting device is analyzed, the feasibility in reforming sludgepit by shallow layer settling technology is approached.
分析了斜管沉淀装置的工作原理，探讨了应用浅层沉淀技术改造捞坑的可行性。
2
The countryside around Xinfeng is dotted with hundreds of small open-pit mines into which miners pour water and chemicals, producing a sludge rich in rare earths.