Name: Improvement of sealing ring and vane bushing for mine wear-resistant multistage pump
Application (Patent) No.5
Application date: 2005.12.16
Public (announcement) day: 2007.01.10
Application (patent) person: Shanghai Liancheng (Group) Co., Ltd.
Summary
The utility model relates to an improvement of a sealing ring and a vane bushing for a mine wear-resistant multistage pump. The utility model comprises a sealing ring, characterized in that: a sealing groove is arranged on the sealing ring in a radial direction with respect to the impeller, and the sealing groove surface is a nitride layer. The utility model has the advantages of improving the sealing property between the seal ring impellers of the wear-resistant multi-stage pump and the hardness of the wear surface, and preventing the wear of the ore particles against the seal ring and the vane bushing.