Determination of Head-capacity Characteristics of Dredge Pumps Working with Slurry of Different Density and Grain-size Distribution
This paper presents an analysis of various methods of converting the head-capacity characteristics of dredge pumps usually set for dredge pumps in factory tests with water, into a pumped slurry having certain volume density and weighted average diameter. The calculation results obtained are compared with the results of dredge pump field testing in the development of a placer gold deposit with the use jetting equipment. Comparison of the established data with the proposed methods is presented; the equations closest to the calculated results are approximated, which are proposed to convert the head-capacity characteristics from water to slurry for weighted average diameters of 1.0, 9.3, and 24.0 mm and concentration of 10 and 20%.