Challenges of Tailings Transport Pumping Systems in Negative Static Head Applications
Authors: Cristian Bertolo1, Cristian Giner1, Gonzalo Laciar1
Conference: Tailings 2025: 11th International Conference on Tailings Management
Date: September 3-5, 2025
1 Mechanical and Piping Engineering, Knight Piésold, Argentina
ABSTRACT
Gravity-driven fluid transport systems, whether operating under pressurized conditions or as open-channel flow, provide an efficient and robust solution for most applications. However, in tailings transport, it is essential to maintain minimum flow velocities to prevent solids from settling. When the natural elevation difference is insufficient to provide the energy required to overcome the pressure gradient associated with these minimum transport velocities, a pumping system must be incorporated. This article addresses the operational challenges of tailings pumping systems in pipelines with negative static head and explores alternative solutions that may offer greater robustness and efficiency under these conditions.
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