This paper describes the design, installation and commissioning of a high solids overland slurry transport system. The scheme has been designed to transport deflocculated kaolin slurry with a solids concentration of up to 30 % by volume. The system is required to pump slurry a distance of approximately 7200 m and against a static head of 180 m. Due to the length of the pipeline and the known non-Newtonian behaviour of the slurry, the friction losses within the system were expected to be significant. The rheology of the slurry was expected to be a complex function of solids concentration, pH and temperature. Although laboratory analyses of the candidate slurry properties were carried out, it was felt that a test rig was required to gain sufficient confidence in the prediction of friction losses. To achieve this, a full-scale test loop was constructed and extensive trials were conducted over the range of slurry properties expected. During the design process, every effort was made to minimize any potential environmental impacts during construction as well as in the operational phase. Extensive on-line monitoring systems have been installed to limit the environmental impacts of any failures within the system.
The design, installation and commissioning of a high solids overland slurry transportation system
Entwurf und Installation eines Überland-Transportsystems für Schlämme hohen Feststoffgehaltes
2002
11 Seiten, 4 Bilder, 2 Tabellen, 2 Quellen
Aufsatz (Konferenz)
Englisch
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