thickened and paste tailings pipeline
2021-06-06T02:06:56+00:00
Thickened and Paste Tailings Pipeline Systems: Design
Thickened tailings are typically transported in laminar flow, but turbulent flow operation is possible for low yield stress mixtures, large diameter pipes and high operating velocities Paste tailings are always transported in laminar flow Iron ore tailings 64%m, 100 Pa yield stress The design methodology for pipeline systems conveying thickened and paste tailings systems has been well developed over the last decade This series of papers outlines the process for designing and implementing a typical surface tailings or underground backfill pipeline system The papers comprise the following parts: Part 1 (this paper) discusses: o development of the design criteria document Thickened and Paste Tailings Pipeline Systems: Design The sequence followed for the hydraulic design of a paste or thickened tailings pipeline system is: Select the pipe diameter (and trial pipe wall thickness) considering deposition and laminar settling criteria (Cooke, 2006) Calculate the unit friction losses Plot the hydraulic grade line for steady state operating conditions Check that the pipe pressure rating meets the steady state pressure envelope, if necessary change the pipe ThickenedandPasteTailingsPipelineSystems: Design
Paper: Thickened and Paste Tailings Pipeline Systems
The design methodology for pipeline systems conveying thickened and paste tailings systems has been well developed over the last decade This series of papers outlines the process for designing and implementing a typical surface tailings or underground backfill pipeline This paper is the second in a series examining issues related to the design of paste and thickened tailings pipeline systems The first paper presented at Paste06 covered design criteria development, characterisation test work and pipeline flow behaviour modelling This paper discusses centrifugal pump performance derating for nonNewtonian slurries, and hydraulic and mechanical design of Thickened and Paste Tailings Pipeline Systems: Design pipeline system transporting thickened tailings or paste It is not a definitive procedure that can be followed without a suitable background in the field and a proper understanding of thickened and paste tailings flow behaviour It is also important to note that the design process is iterative in nature So while the steps have been laid outThickenedandPasteTailingsPipelineSystems: Design
Thickened and Paste Tailings Pipeline Systems: Design
Download Citation On Jan 1, 2006, Robert Cooke published Thickened and Paste Tailings Pipeline Systems: Design Procedure – Part 1 Find, read Paste and thickened tailings : a guide The successful implementation of filtered, paste and thickened tailings technology is dependent on a sound understanding of slurry colloidal behavior, thickening and thickener operation, filtration, rheology, pump and pipeline transport systems, conveyor transport and disposal methodologiesthickened and paste tailings pipeline taxi of International Conferences on Paste, Thickened and Filtered Tailings (PTT) initiated by the ACG in 1999, and reflects the developing maturity of PTT REGISTRATION BROCHURE management 24TH INTERNATIONAL CONFERENCE ON PASTE, THICKENED AND FILTERED TAILINGS 21–23 SEPTEMBER 2021 ONLINE PERTH, AUSTRALIA PASTE, THICKENED AND FILTERED TAILINGS
Paste and thickened tailings : a guide
onpumpperformance in thickened tailingsapplications 174 10312 Effectofwearonpumpperformance 175 10313 Limitingcentrifugalpumpwear 175 1032 Positive displacementpumps 177 10321 Rotarypumps 177 10322 Reciprocatingpumps 177 10323 Piston diaphragmpumps 177 10324 Valvesinreciprocatingpumps 178 10325 Suction requirements 178CiteSeerX Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): This paper is the second in a series examining issues related to the design of paste and thickened tailings pipeline systems The first paper presented at Paste06 covered design criteria development, characterisation test work and pipeline flow behaviour modellingCiteSeerX — Thickened and Paste Tailings Pipeline Systems Paste and thickened tailings : a guide The successful implementation of filtered, paste and thickened tailings technology is dependent on a sound understanding of slurry colloidal behavior, thickening and thickener operation, filtration, rheology, pump and pipeline transport systems, conveyor transport and disposal methodologiesthickened and paste tailings pipeline taxistadtfahrtende
PASTE, THICKENED AND FILTERED TAILINGS
Hydraulic capsule pipeline for long distance transportation of filtered tailings B Abulnaga, Paste and thickened tailings disposal: a technical review A Vietti, Vietti Slurrytec (Pty) Ltd, South Africa Numerical modelling of dry stacking tailings heaps GC Vizcarra, Vale SA, Brazil" Pipeline performance " 2003 Intl Seminar on Paste and Thickened Tailings, 1416 May 2003, Melbourne, Victoria, Australia, Section 8, 113 The thickening process (compression) Apr 2003Mine Paste Backfill–The Behaviour of Thickened Tailings The successful implementation of filtered, paste and thickened tailings technology is dependent on a sound understanding of slurry colloidal behavior, thickening and thickener operation, filtration, rheology, pump and pipeline transport systems, conveyor transport and disposal methodologiesFiltered, Paste and Thickened Tailings Paterson Cooke
Paste and thickened tailings : a guide
TheTailings Continuum:DefiningTheBoundaries 11 21 PREAMBLE 11 22 THETAILINGSCONTINUUM 11 23 THECURRENTSITUATION 12 231 Conventional tailings slurry 13 232 Thickened tailings slurry 13 233 Paste 14 234 Cake 15 24 CLASSIFICATIONSYSTEMBOUNDARIES 15 241 Segregation threshold 16 242 Initial settled density 16 243 Liquid limit 16 Ix The successful design of a thickened or paste tailings system requires that the system is designed to accommodate the effect of the high density slurry on pumps, pipelines and the overall system operation The transport system must be designed as an integrated unit and the interaction plant, the pump station and the pipelineHigh density slurry and paste tailings, transport systems With thickened paste and filtered tailings, a finer grind can affect the payback of tailings disposal by: increasing capex costs (eg, lower settling rates and greater retention times requires a larger thickener) and increasing operating costs (eg, higher flocculant, power and filter cloth consumptionPaste Thickening: Considerations for Backfill vs Tailings
Beaching angles and evolution of stack geometry for
but excess desiccation is a concern in sulphidic tailings due to the possibility of oxidation and acid rock drainage (ARD) generation (Fisseha et al 2010) While the behaviour of thickened or paste tailings in the pipeline have been studied to a significant degree Now the metallurgical plant tailings are dewatered and used as thickened tailings or paste backfills The major changes in these operations, besides the backfill tailings becoming more fine and the need for more capital intensive equipment, is the need to introduce cementitious binders to take up the water remaining in the backfill and generate Backfill pipeline and delivery systems QueensMineDesignWikiPaste and thickened tailings : a guide The successful implementation of filtered, paste and thickened tailings technology is dependent on a sound understanding of slurry colloidal behavior, thickening and thickener operation, filtration, rheology, pump and pipeline transport systems, conveyor transport and disposal methodologiesthickened and paste tailings pipeline taxi
Session 2: Backfill
Thickened and Paste Tailings Pipeline Systems — Design Procedure, Part 2 129 R Cooke, Paterson and Cooke Consulting Engineers (Pty) Ltd, South Africa Paste 2007, Perth, Australia xv orebody, but was typically classified Paste backfill (total tailings) formed better fill and allowed more ore to be extracted Paste made with filter cake Rheology and pipeline transport critical Secondary benefit – less material placed in the tailings damPaste and Thickened Tailings – a review The successful implementation of filtered, paste and thickened tailings technology is dependent on a sound understanding of slurry colloidal behavior, thickening and thickener operation, filtration, rheology, pump and pipeline transport systems, conveyor transport and disposal methodologiesFiltered, Paste and Thickened Tailings Canadian
Paste Thickening: Considerations for Backfill vs
With thickened paste and filtered tailings, a finer grind can affect the payback of tailings disposal by: increasing capex costs (eg, lower settling rates and greater retention times requires a larger thickener) and increasing operating costs (eg, higher flocculant, power and filter cloth consumption An elevated location of a paste thickener on a ridge close to the disposal area is considered at a Swedish iron ore mine About 07 Mtonnes of thickened tailings are planned to be layered as paste in the vicinity of the thickener over several years with pipeline lengths of up to 900 m after about 20 years In order to clarify the pipeline pumpingPumping evaluations with paste tailings thickened close PSEI has the specialized knowledge and expertise to design and build optimized systems for paste and thickened tailings disposal Whether your need is for paste backfill or surface disposal, PSEI will provide the perfect combination of products and services, including energy dissipation, highpressure pumping, cycloning, thickening, materials selection, and specialized constructionThickened Tailings Disposal System
Chapter 3 Rheological Concepts ACG website
• The optimum conditions for pipeline transport to the storage area • The feasibility of dewatering the slurry to the required concentration prior to transportation Thickened disposal is defined here as any system designed to take advantage of a highdensity thickened and/or paste tailings Most tailings can be thickened mechanically, some to a paste or filter cake consistency However, clay mineralrich tailings, such as coal tailings, mineral sands tailings, tailings from some oxide ores, and residue from the processing of bauxite, nickel MANAGEMENT OF TAILINGS: PAST, PRESENT AND FUTURE Now the metallurgical plant tailings are dewatered and used as thickened tailings or paste backfills The major changes in these operations, besides the backfill tailings becoming more fine and the need for more capital intensive equipment, is the need to introduce cementitious binders to take up the water remaining in the backfill and generate Backfill pipeline and delivery systems