Grustag

Applications of Dynamic Modeling in Crushing Plants

Marcus Johansson, Doctoral Student at Product Development, defends his doctoral thesis.
Marcus’s research concerns development and usage of time dynamic simulation models to describe the processing equipment used in the minerals processing industry. Special attention is given to how the models can be used to improve process control of today’s processes. The main goal is to create leaner and more efficient processes, leading to a decreased usage of resources.


Marcus Johansson
Public defence
2021-05-21 09:00 -- 12:00
Opponent: Prof. Stefan Heinrich, TUHH (Germany)​
Examiner: Magnus Evertsson, IMS

 Password: 533154






Popular science description
Metals, minerals, and construction products are critical for our high living standard and continue to transition to a more environmentally sustainable life. To mine for minerals and turn them into metals and other valuable products requires many resources. The consumed energy by the mining industry could be up to 20% of a country’s total energy usage. Reducing rocks from large blocks to a fine powder is the process used to liberate the metals and minerals from the waste rock. This process could be made more efficient. One approach is to make the machinery and processes operate better to consume less resources and deliver a better product. A tool to help aid in making the processes more efficient is a virtual copy of the process. The virtual copy acts as a risk-free environment where possible improvements can be tested.
In this thesis, the building blocks of these virtual copies are developed and elaborated on. The building blocks are referred to as models. The models can be simulated and connected to replicate large industrial sites, both existing sites and before the sites are built. How should these processes be designed? How should they be operated? How can the models be developed? These questions, among many others, are investigated in this thesis. This thesis includes multiple new models and a range of use cases for them, ultimately to make mining and crushing processes more efficient and secure that metals and minerals are sustainably available for future generations.

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Page manager Published: Thu 01 Jul 2021.