These courses are designed to improve the understanding of operating and optimising crushing and grinding circuits for all site personnel working in this area.
The course aims to provide a progressive understanding of individual unit operations, their relationship with each other and provide tools to optimise the circuit as a whole. It can be tailored to focus on your individual site flowsheet and process equipment and will deal specifically with a number of key outcomes including:
The Process Training package is targeted at plant operators, metallurgists, technicians and operations management who deal specifically with the comminution circuit. It is ideally designed to complement other OMC services and the intention is for it to be used as the third stage of the optimisation process (i.e. audit, detailed optimisation and training).
Comminution is an area of plant operation that is often overlooked or misunderstood. As long as production targets are met, all is considered well. However, comminution circuits consume significant energy and can contribute to 50% of the operating cost on many concentrators. These costs are typically related to power and steel consumption. If production targets are not being met this impact is magnified with operating costs per tonne inflated across the concentrator.
Optimal operation of a comminution circuit requires a good understanding of the process by operators and an ongoing scrutiny of the process by technical staff.
Optimal operation of a comminution circuit can sometimes appear to be a daunting task without the knowledge required to undertake a project. This course focuses on the practical knowledge and the understanding of the process required to maximise production and optimise efficiency.
1.1 Identify crushing, grinding, screening and classification units in the circuit.
1.2 Describe the key function of each unit in the circuit.
1.3 List the variables associated with each unit in the circuit.
1.4 Understand the consequence of each variable on circuit performance.
2.1 Understand how the variables of each unit interact to affect the circuit.
2.2 Follow a logical sequence of variable changes to problem solve performance issues that may
arise in the circuit.
Benchmarking and Circuit Analysis
3.1 Understand how ore properties dictate circuit power requirements.
3.2 Understand the importance of a circuit survey.
3.3 Identify all survey data required and develop techniques for quality planning and execution.
3.4 Utilise the mass balance to identify areas of poor performance.
3.5 Understand the concept of FSAG and how the actual value compares with the theoretical calculation.
3.6 Analyse cyclone performance using efficiency calculations.
4.1 Describe the three main ways that a circuit can be optimised
(i.e. throughput, product size, power efficiency).
4.2 Understand key steps to optimise a circuit for throughput.
4.3 Understand key steps to optimise a circuit for product size.
4.4 Understand key steps to optimise a circuit for power efficiency.
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