Justifying the power consumption of mine dewatering pumps by the example of the Akkerman mine

Introduction. The purpose of the power consumption comparative evaluation at the mine dewatering is to clarify the methodology of selecting and calculating the actual parameters of D and CNS centrifugal pumps (Russian manufacturer) and LH (Japan) and Flygt (Sweden) submersible pumps by actual working points of intersection of the force pumps features and the external line design features. The results of calculations of centrifugal and submersible pumps power consumption are given in the tabular form when revising the existing mine dewatering scheme of the Akkerman mine. Methods of research. Characteristics of external lines and quantitative values of constant of suction and discharge pipelines of centrifugal and submersible pumps are determined according to the existing methods. External line characteristics were built on individual characteristics diagrams and working points which confirm actual parameters were defined to compare electric power consumption by the studied unit sizes of centrifugal pumps (D, CNS) and submersible pumps (LH, Flygt). Obtained actual operating modes of centrifugal and submersible pumps are checked for compliance with Federal Norm and Regulations requirements. Results and analysis. The calculation data obtained as well as the calculated quantitative values of electric power consumption of the competitive D and CNS pumps and submersible LH and Flygt pumps, given in the tabular form, show that electric power consumption for mine dewatering by pumps of 1D160-112 size and CNS 300-120–360 size is 20% lower. Scope of results. The results of justification of power consumption of centrifugal pumps for mine dewatering are recommended for implementation by organizations performing research and development of mine dewatering with import substitution of foreign submersible pumps