Influence of Rheology on Pressure Losses in Hydrotransport System of Polymetallic Ores Tailings

Innovations and Prospects of Development of Mining Machinery and Electrical Engineering

矿业工程;电工学

Avksentiev, S. Yu^1 ; Nikolaev, A.K.^1

Saint-Petersburg Mining University, 21st Line, 2, St Petersburg

199106, Russia^1

关键词: Effective dynamics;    Hydrotransport system;    Initial shear stress;    Means of transportations;    Primary parameters;    Rheological characteristics;    Simultaneous reduction;    Transportation system;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/87/5/052019/pdf
DOI  :  10.1088/1755-1315/87/5/052019

来源: IOP

【 摘 要 】

An important trend in mining production intensification, increasing its efficiency and competitiveness in the conditions of modern market relations, is creating a robust transportation basis that could significantly increase the performance of the transportation system with simultaneous reduction of transportation prime cost of minerals and products of their processing. Developing this basis is related to implementing continuous means of transportation among which hydraulic pipeline transport is most common in the mining industry. The calculation of head losses and flow friction characteristic is one of the most important tasks in designing hydrotransport systems. The efficiency of a hydrotransport system depends on solving this task. To reduce the energy consumption and specific amount of metal in a transportation system, mineral processing companies transport processing products in concentrated condition. Such hydraulic fluids typically show initial shear stress (τ0) and effective dynamic viscosity (ηef), as well as other rheological characteristics that affect the primary parameters of hydrotransport, including head losses.