... Similar to KSB Style TZJ Slurry pumps, a new generation of “high efficiency, wear and corrosion resistance, no leakage” ... application, are developed by the joint cooperation from Tsinghua University, China University of Mining and Technology, and us. Impeller profile adopts the ... impeller for the shaft seal, and the patent technology of “Self Circulation Cooling Assembled Shaft Seal” is applied for ...