Design of Coarse Tailings and Dry Ash Disposal Facilities

Design of Coarse Tailings and Dry Ash Disposal Facilities

Author: Andrew Copeland, Justin Teixeira
Conference: Paste 2019
Date: May 8-10, 2019

ABSTRACT
The diamond industry has been disposing of its coarse tailings using conveyor and stacker systems for many years. The process plant typically generates two tailings products, a grit fraction (sand) and a coarse fraction (gravel), which are often combined on one dump. In some cases, the dump is stable with a single steep slope angle. However, in other situations a composite slope forms with settlement and intermittent slumping behaviour, this impacts on both design and operation.

The thermal coal industry has also been disposing of dry ash for many years using either conveyor/stacking systems or haul trucks. Both systems work well, but the costs, deposition plans and stability aspects differ. Management of water and dust are also key factors.

There are a number of key design and operational aspects that are similar between these diamond tailings and ash facilities, and would apply equally to filtered and dry stacked tailings. This paper aims to examine these similarities and show how these learnings could be built into new filtered tailings designs and operations to make them more efficient and stable.

 

Download the full technical paper.

Download

Recent Insights

November 2021
Knight Piésold's Projects Commended at Prestigious Awards
November 2021
Engineer of Record Services for Tailings Facilities
November 2021
Gearing Up for Growth in Zambia
October 2021
Knight Piésold, aliado de la minería sustentable
September 2021
Knight Piésold Chile enfoque personalizado e integral de trabajo al estilo boutique
September 2021
Company Uses Innovative Ideas in Municipal Project
August 2021
South Africa Must Focus on STEM Skills to Enable Development
July 2021
Business Success Stories: Knight Piésold
July 2021
Holistic Approach to Mine and Industrial Water Management
July 2021
Selection of Undrained Shear Strength Parameters of Residual Soils and their Application in Stability Analysis
June 2021
Knight Piésold Focused on Africa's Infrastructure Development
June 2021
Century-old Knight Piésold Remains Committed to Clients and Communities in Phalaborwa
May 2021
Very Few Consulting Firms Reach 100 Years – Knight Piésold Celebrates with Optimism
April 2021
Knight Piésold Celebrates 100 Years of Excellence in Africa
April 2021
Video: Knight Piésold Celebrates 100 Years of Engineering Excellence
April 2021
Opportunities Abound to Support Africa's Resilient Growth - Knight Pièsold
April 2021
Firm Expands Service Offering
March 2021
Celebrating 100 Years of Engineering Excellence
February 2021
Improved Tailings Disposal Could Reduce Water Use
January 2021
Your Community, Your Neighbour