Arctic Climate Pipeline Design Considerations

April 1, 2020Tech Topics

Over the years there has been an increasing trend for resource companies to develop mining projects in cold regions and areas of permafrost. The arctic presents unique engineering challenges. Many of the sites are in remote areas where road access is difficult. These regions bring about challenges related to labour, equipment, logistics and costs. This … Read More

Graduate Engineer (Cornwall, United Kingdom)

March 16, 2020Careers

Role Purpose Paterson & Cooke is seeking recent mining engineering graduates to join our team in a full-time position at our rapidly growing office in Cornwall, United Kingdom. The successful applicant will work on a variety of projects in the mining and resources industry. The work entails the design of slurry pumping and pipeline systems … Read More

Project Engineer (Cornwall, United Kingdom)

March 12, 2020Careers

Role Purpose An opportunity has arisen for a Project Engineer to join our team in a full-time position at our rapidly growing office in Cornwall, United Kingdom. The successful applicant will work on a variety of projects in the mining and resources industry. Using your technical knowledge and project management skills you will support the … Read More

Optimising Operating Ranges to Control Backfill Variability

March 11, 2020Tech Topics

A paste backfill system seldom operates at a fixed operating point and the system always needs to accommodate considerable variability in materials depending on what ore is being mined and the performance of the process plant. It is therefore important to design a flexible backfill system that accounts for varying backfill rheology while ensuring that … Read More

Junior Draughtsperson (Cape Town, South Africa)

February 27, 2020Careers

Job Description The successful applicant will join our drawing office and be trained to produce mechanical drawings in the field of slurry transport systems and specialised equipment for the mining and resources industry. The applicant will report to the drawing office manager and assist in ensuring that drawing deliverables are done accurately, correctly and on … Read More

Improving Thickener Performance

January 28, 2020Tech Topics

The use of antiquated technologies, changes in duties or increases in throughputs usually result in inefficient operation and poor thickener performance. These conditions are normally identified by a decrease in underflow density, poor overflow clarity, an increase in flocculant consumption, the presence of froth on the surface and poor control of the thickener. Upgrading thickeners … Read More

Optimise Your Backfill Through Particle Size Manipulation

January 14, 2020Tech Topics

The global trend of decreasing metalliferous ore grades and increasingly complex mineralogies is leading to finer grind sizes to achieve the necessary liberation for ore beneficiation. The impact of this is expressed throughout the ore processing cycle, including mine backfill; by leaving lower fractions of coarse material suitable for hydraulic fill and, in particular, influencing … Read More

One Conference, Two Papers and Future Research

December 4, 2019Tech Topics

The 19th International Conference on Transport & Sedimentation of Solid Particles (T&S) was held in Cape Town in September 2019 and it was a great success. It’s the first time the conference has been hosted in Africa since its inception in 1971 and Paterson & Cooke (P&C) co-hosted the event together with Wroclaw University of … Read More

Mine Backfill Forensics – Pastefill Pipe Blockage

November 7, 2019Tech Topics

  Despite the best intentions during the engineering and design phase, things can go amiss in a pastefill system and the pipeline ends up becoming plugged. The first step is to safely empty the boreholes as quickly as possible and attempt to clear the line with water. After ‘saving’ as much of the system as … Read More

Operating Slurry Pipelines with a Deposit

September 12, 2019Tech Topics

Slurry pipelines are conventionally designed to operate without a deposit on the pipeline invert – i.e. the minimum operating velocity is greater than the deposition velocity. Largely this approach has been adopted due to concerns regarding potential blockage of a pipeline operating with a deposit. A typical slurry pipeline design duty envelope is shown in … Read More