During the final stages of metallurgical plant construction there is tremendous pressure to commence production. More often than not, there will have been budget overruns and schedule delays. Corporate management and investors are naturally anxious to generate cash flow. This pressure may evolve into a fast-track culture regarding the commissioning and start-up.  www.perfnet.com 

During the final stages of metallurgical plant construction there is tremendous pressure to commence production. More often than not, there will have been budget overruns and schedule delays. Corporate management and investors are naturally anxious to generate cash flow. This pressure may evolve into a fast-track culture regarding the commissioning and start-up. www.perfnet.com 

Developing a profitable mining venture is no small matter. It requires enormous initial investments in research, construction, and equipment. But a mineral processing plant does not run itself. Even with the best equipment and good ore quality, optimal results are dependent upon keeping the process running smoothly, avoiding process upsets, maintaining process variables in the desired range, and minimizing breakdowns and downtime. A highly trained workforce is an essential element in a successful, and profitable, start-up. The knowledge and abilities of plant operators and maintenance personnel can make or break an operation. Trained operators know what to look for during preoperational and routine inspections, allowing maintenance tasks to be planned and unexpected costly breakdowns avoided. Trained operators know what variables exist at different stages in the process and how to make appropriate adjustments in real time. Trained maintenance personnel are well acquainted with the plant equipment, and maintenance planners can schedule work and maintain a spare parts inventory to minimize downtime. Additionally, new operations that train their workforce just prior to plant commissioning can utilize their operators in the commissioning process. Having been trained and gained field experience through plant commissioning, operators are ready to hit the ground running once feed is introduced. A faster ramp-up means more earnings, more quickly. The cost of developing a proper training program is a small percentage of the overall engineering, procurement, and construction budget but it constitutes a large percentage of the gains realized from a successful start-up and ramp-up to full production. Performance Associates International (PAI) has designed and presented custom training programs for operators and maintenance personnel in metallurgical plants around the world for over 35 years. We are proud to have been part of the successful start-ups at Lundin Mining’s Eagle Mine, Vale’s Voisey’s Bay project, and Torex Gold’s El Limon-Guajes project. Click Download to view the actual vs. projected start-up results from these three metallurgical plants that made use of PAI’s custom-built training programs and on-site training.

With reference to greenfield plant projects, using process simulators similar to the designed plant Human-Machine Interface (HMI) or Distributed Control System (DCS) has become common practice. These simulators represent a “virtual plant” based on process modeling of the circuit chemistry and thermodynamics, and on the physical nature of the plant, including equipment, valves, piping, etc. The virtual plant allows trainees to troubleshoot problems, optimize process variables, react to alarms, etc., all based on the process simulation model. Performance Associates’ experience is that this complex simulator training is valuable, but only after more in-depth training on the process and control logic. To truly optimize a process plant, prior to simulator training, the control room operators must have detailed knowledge of the following:  Process objective of each process system, comprising a group of unit operations.  Process objective of each unit operation.  Process chemistry and the variables affecting it.  Important characteristics of each unit operation, the variables affecting it, and the impact on downstream unit operations.  Plant control loops, interlocks, and alarms.  Safety issues related to the process and control schemes.  Operating procedures for start-up and shutdown under various scenarios, as well as important operator tasks. Additionally, trainees must be intimately familiar with the applicable fundamental scientific concepts, such as pressure, temperature, heat exchangers, electricity, PID control logic, combustion, etc. With this fundamental and plant-specific foundation, the process simulator can be fully exploited for training.

With reference to greenfield plant projects, using process simulators similar to the designed plant Human-Machine Interface (HMI) or Distributed Control System (DCS) has become common practice. These simulators represent a “virtual plant” based on process modeling of the circuit chemistry and thermodynamics, and on the physical nature of the plant, including equipment, valves, piping, etc. The virtual plant allows trainees to troubleshoot problems, optimize process variables, react to alarms, etc., all based on the process simulation model.  Performance Associates’ experience is that this complex simulator training is valuable, but only after more in-depth training on the process and control logic. To truly optimize a process plant, prior to simulator training, the control room operators must have detailed knowledge of the following:Process objective of each process system, comprising a group of unit operations.Process objective of each unit operation.Process chemistry and the variables affecting it.Important characteristics of each unit operation, the variables affecting it, and the impact on downstream unit operations.Plant control loops, interlocks, and alarms.Safety issues related to the process and control schemes.Operating procedures for start-up and shutdown under various scenarios, as well as important operator tasks.Additionally, trainees must be intimately familiar with the applicable fundamental scientific concepts, such as pressure, temperature, heat exchangers, electricity, PID control logic, combustion, etc. With this fundamental and plant-specific foundation, the process simulator can be fully exploited for training. 

The geology report, feasibility study, and mine plan look great. Why do so many mining project start-ups fail to perform? Most mining companies put a great deal of emphasis on the nature of the reserve, the mine plan, the extraction process to be used, and the process plant design—obviously all very important. Even when large, highly regarded engineering, procurement, and construction firms develop the project, operating results are very often disappointing. In this paper, we explore the role of Operations Readiness on the financial impact of mining project start-ups. A relatively small investment in operations readiness produces a huge financial return. Many investment firms, as well as mining company senior executives, fail to consider this important factor in operating success.

Founded in 1983, Performance Associates International (PAI) is the worldwide leader in mine and plant industrial training. Our custom training modules and on-site training have improved start-up success and operations for clients on nearly every continent. We invite you to experience one of our e-learning training modules. Here you will see a video demonstration of a sample principle of operation from an e-learning module. A principle of operation describes in detail how a piece of equipment or a process works. In this sample, you will learn about Jameson Cell flotation technology and how its design allows for more efficient mineral separation in a much smaller tank than traditional column and mechanical flotation cells. We describe in detail the key components of the Jameson Cell and the operating principles. At the end of the module, a test will help assess what you learned. In a full training program, test results can be recorded and tracked in an LMS. A principle of operation like this would be only one of many included with a full plant operations training program. Note: This is a sample and does not contain the Jameson Cell training module in its entirety. If you would like to try out this e-learning module, please contact Kenneth Slack at [email protected] or +1-520-544-2220.

How can the overall performance of your plant be determined? Most plants calculate availability, or the percent of the time the plant or a particular circuit is operating, as well as overall production and recovery. But, is this information enough? Does it provide sufficient fine-grained information on where improvements can be made? This paper suggests five quantitative factors applied to a plant or to individual parts of a plant that identify the productivity of the plant—in other words, its productivity profile.

In this interactive PDF, we talk about common training myths and our responses.

How can the overall performance of your plant be determined? Most plants calculate availability, or the percent of the time the plant or a particular circuit is operating, as well as overall production and recovery. But, is this information enough? Does it provide sufficient fine-grained information on where improvements can be made? This paper suggests five quantitative factors applied to a plant or to individual parts of a plant that identify the productivity of the plant—in other words, its productivity profile.

Ensure that your plant has a good inventory of spare parts on hand by learning how to collect the data necessary to build your own spare parts inventory model.