thickened and paste tailings pipeline

Tailings.info Dry Stacking of tailings

In reality this is conventional tailings storage (high rate thickened or paste), but the term 'dry stacking' refers to the final product based on the methods used to promote sedimentation and release of water within the facility and thus drying and strength gain.

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

High density slurry and paste tailings, transport systems

reality, there is no clear distinction between a thickened high density tailings and a paste slurry. From a pipeline flow perspective, it is necessary to understand the changes in flow behaviour as solids concentration increases and it is not always necessary to define the slurry as thickened or a paste tailings. The same applies to the ...

Paste and thickened tailings : a guide - GBV

TheTailings Continuum:DefiningTheBoundaries 11 2.1 PREAMBLE 11 2.2 THETAILINGSCONTINUUM 11 2.3 THECURRENTSITUATION 12 2.3.1 Conventional tailings slurry 13 2.3.2 Thickened tailings slurry 13 2.3.3 Paste 14 2.3.4 Cake 15 2.4 CLASSIFICATIONSYSTEM-BOUNDARIES 15 2.4.1 Segregation threshold 16 2.4.2 Initial settled density 16 2.4.3 Liquid limit 16 Ix

Thickened and Paste Tailings Pipeline Systems ... - CORE

Abstract. 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.

RHEOLOGICAL AND DEPOSITIONAL CHARACTERISATION …

pipeline diameter tests with Svappavaara-tailings. With large diameters, it was not possible to do on-site large-scale pipeline pumping tests at the time of pilot-scale thickening tests because of low paste production rates. Consequently, the tests were carried out with stored and re-mixed pastes. Figure 4.

Robert Cooke - President - Paterson & Cooke North America ...

 · Specialties: Slurry pipeline anaylsis and design, paste and thickened tailings, backfill systems, hydraulic hoisting, marine mining Articles by Robert Developments in Tailings Transportation.

Ausenco Psi 1320 Willow Pass Rd Concord, CA Engineers Pipe ...

Pipeline Systems undertakes long-distance concentrate and ore and tailings disposal and hydraulic ore hoisting systems projects. The company s tailings disposal systems solutions include gravity flow, energy dissipation and thickened paste disposal. It provides design and build optimized systems for paste and thickened tailings disposal.

Paste Thickening: Considerations for Backfill vs. Tailings ...

With thickened paste and filtered tailings, a finer grind can affect the payback of tailings disposal by: increasing capex costs (e.g., lower settling rates and greater retention times requires a larger thickener) and increasing operating costs (e.g., higher flocculant, power and filter cloth consumption.

Tailings Management & Metal Recovery | Ausenco

Ausenco’s tailings transport solutions include gravity flow, open-channel flow, energy dissipation, multiple pumps in series, and thickened paste disposal. We also offer our clients expertise in pipeline SCADA and telecommunications systems.

2013 Colloquium of the Canadian Geotechnical Society ...

Thickened tailings need to be transported as a turbulent flow in the pipeline, at a certain minimum velocity to avoid or minimize sedimentation in the pipeline. “Paste tailings” are further dewatered to the point where they may be pumped in the laminar range and do not have a terminal settling velocity, which usually requires a solids ...

Paste 2019 | 22nd International Conference on Paste ...

The Paste 2019 Conference printed proceedings are available for purchase at the ACG Online Shop. Paste 2020 will be hosted in Santiago, Chile, 12 June 2020, and the ACG will be running the Is the Future Filtered? Paste and Thickened Tailings Short Course alongside this event. Click here for more information on Paste 2020.

Associated Events | Paste 2018

 · Is the Future Filtered? Paste and Thickened Tailings Short Course 10 April 2018 | Perth, Western Australia. About the short course. Thickening of mine tailings is now going beyond the use of large, deep thickeners and addressing a new challenge – filtration of tailings to produce a low water content material that should pose much lower environmental and safety risks than most conventional …

Mine Paste Backfill–The Behaviour of Thickened Tailings ...

Mine Paste Backfill–The Behaviour of Thickened Tailings and Pipeline Design. ... Thickened paste tailings pipeline systems: Design procedure – Part 1, in Paste 2006, Ninth International ...

Mine Paste Backfill–The Behaviour of Thickened Tailings ...

Mine Paste Backfill–The Behaviour of Thickened Tailings and Pipeline Design ... In contrast thickened paste technology using very lowmoisture thickened tailings, has made rapid progress from 1995 onwards, and offers significant economic incentives and environmental benefits. ...

HELD AT: THE COLORADO SCHOOL OF MINES, GOLDEN, …

HELD AT: THE COLORADO SCHOOL OF MINES, GOLDEN, COLORADO, USA JANUARY 18, 2013 Filtered, Paste and Thickened Tailings Course Introduction Filtered, paste and thickened tailings is developing into a mature technology with wide application in ... Tailings Pipeline Systems

Thickened and Paste Tailings Pipeline Systems: Design ...

Thickened and Paste Tailings Pipeline Systems: Design Procedure – Part 1 R. Cooke. xRepresentative process water should be used for the test work as the water chemistry can have a significant effect on the tailings flow behaviour. xFor systems incorporating a thickener, the test work samples should be obtained from pilot ...

Tailings pipelines for Mine Waste Management | Ausenco

Challenging economic conditions and increasingly strict environmental regulations demand tailings pipeline systems that travel longer distances, at higher concentrations and with longer design lives. Our solutions include gravity flow, open channel flow, energy dissipation, multiple pumps in series, and thickened paste disposal.

Mill tailings management – high density thickened slurries ...

McPhail G, 2015. The high-density thickened discharge tailings storage facility at Osborne Mine – a case history from inception to closure, in Proceedings 18th International Seminar on Paste and Thickened Tailings (eds: R J Jewell and A B Fourie), , Cairns, Australia, pp 42 (Australian Centre for Geomechanics: Perth).

Backfill pipeline and delivery systems - QueensMineDesignWiki

Initially metallurgical plant tailings were cycloned to remove the minus 10 micron fraction to produce cyclone classified tailings, to aid percolation and drainage. Now the metallurgical plant tailings are dewatered and used as thickened tailings or paste backfills.

Mine Paste Backfill–The Behaviour of Thickened Tailings ...

Mine Paste Backfill–The Behaviour of Thickened Tailings and Pipeline Design ... In contrast thickened paste technology using very lowmoisture thickened tailings, has made rapid progress from 1995 onwards, and offers significant economic incentives and environmental benefits. ...

Filtered, Paste and Thickened Tailings - Canadian Mining ...

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 methodologies.

Filtered, Paste and Thickened Tailings - Canadian Mining ...

 · 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 …

Thickened and Paste Tailings Pipeline Systems: Design ...

Abstract. 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.

Deep Bed™ Paste Thickeners - WesTech Engineering, Inc.

The WesTech Deep Bed Paste Thickener can thicken a tailings stream to non-settling paste at solids concentrations approaching that of a filter cake. Design characteristics of the Deep Bed™ result in maximum water recovery, maximum underflow density, and paste with minimal slump.

Design Considerations for a Tailings Disposal System | E & MJ

By using paste or thickened tailings, many mines find they can stack more material in smaller foot print and safeguard the operation from issues associated with runoff. In other parts of the world, rainfall is not an issue and water is a scarce resource. ... the pipeline designer and the thickener designer,” Gollaher said. “The mine ...

ThickenedandPasteTailingsPipelineSystems: Design Procedure ...

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:

Temperature Effects on Rheological Properties of Fresh ...

Cemented paste backfill (CPB) is an economic and environmental friendly technique applied in underground mining for supporting surrounding rock and replacing the pillar. However, little is known about the temperature effects on CPB in mines having a large temperature fluctuation. The main purpose of this research was to investigate the effect of temperature change on the rheological properties ...

Tailings - Paterson & Cooke

Tailings Slurry pipelines are commonly used to transfer mine residue from the processing plant to the tailings storage facility. Historically these pipelines were designed to operate at low solids concentrations, however as dewatering technology improved and solids concentrations increased, residue disposal systems have become significantly more complex.

2013 Colloquium of the Canadian Geotechnical Society ...

Thickened tailings need to be transported as a turbulent flow in the pipeline, at a certain minimum velocity to avoid or minimize sedimentation in the pipeline. “Paste tailings” are further dewatered to the point where they may be pumped in the laminar range and do not have a terminal settling velocity, which usually requires a solids ...

Paste Thickener Design to Achieve Downstream Requirements

 · Paste or thickened tailings has become an increasingly important method to address many of the environmental problems facing the mining industry. ... Paste Thickener Design to Achieve Downstream Requirements. Posted by Jerold Johnson on July 11, ... pipeline …

APPENDIX Q: Tailings Management Alternatives Evaluation

paste tailings in a surface impoundment (Cemented Tailings Facility - CTF) at the mine site. ... pipeline alternatives and alternative pipeline routes were studied by MG Engineering Inc. (2016). Geomin Resources, Inc. 2 J ... Dry stack tailings disposal would involve thickening the tailings followed by filtering to reduce

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