Development Of The Wide Flow Road Slurry Pump

Dredge pump is one of the core equipment of dredger used in river dredging,harbor construction and other projects.And in the two-products heavy cyclone coal preparation system,the cyclone feed pump is one of the core equipment.The development of the pump was a hard task for the requirement of a stronger flow capacity.The development of wide flow channel slurry pump is of great significance to reduce the consumption of foreign exchange and to improve the level of independent research and development and manufacturing of pump equipment in China.The development of wide flow channel slurry pump is discussed mainly.Based on the analyzing characteristics of wide flow channel slurry pump used in the process,the key design points of the pump are obtained.Many design methods are used to ensure realization of design goals,such as velocity coefficient method,similar design method,verifying the impeller flow capacity by three-dimensional software.Implementing overall structure design,and for the important parts actualizing calculation,design and verification to guarantee the stable operation of the pump.According to the characteristics of wide-flow slurry pump material,the material composition is designed and the reasonability of the casting process,machining process,heating process and assembly process is verified.The developed prototype was tested industrially and the performance curve of the pump was made to offer the base data for the market.Through the type test and the industrial test,it is proved that the key points of the design method,the selection of the calculation coefficient and the value relation between the parameters can guarantee the design parameters and meet the design requirements.With the results,the following series pumps,such as 300ZJ-C90,250ZJ-C80,has been successfully applied to the market.The research will be helpful to explore the design method of slurry pump for different working conditions.