Comminution process wear

P9系列研究项目的最终目标以及任何矿物加工研究项目的最终目标都是降低运营成本。在粉碎过程中，该成本在财务方面作为能量和钢消耗的函数来衡量。 在本项目中，将研究不同粉碎过程的磨损，特别强调滚转（球，AG/SAG，棒）磨机钢介质和衬板的磨损，目标是开发实验室测试和技术，有助于预测并最大限度地减少这些过程中的磨损。 应该注意的是，在一个给定的操作中，滚筒磨的磨损可能占研磨成本的一半。钢介质和衬板磨损调查将使用并进一步完善所建造的测试设备。还将研究其他工艺（HPGR、搅拌米尔斯、再磨）的磨损以及磨损-腐蚀耦合模型的开发。在所有这些情况下，过程磨损的成本将作为能源和钢材消耗的函数来衡量。具体而言，该项目的目标是（i）完成钢介质磨损模型验证，（ii）定义，开发和验证衬板磨损模型，（iii）探索其他粉碎工艺（HPGR，再磨和搅拌米尔斯）的磨损模型和（iv）探索耦合磨损-腐蚀钢介质磨损模型。该项目的价值和效益不仅可以在经济方面衡量，因为它有助于降低粉碎过程磨损方面的运营成本，而且还可以在环境和科学方面衡量。在经济方面，更好的磨损预测将导致磨损成本最小化在粉碎过程中，无论是在格林菲尔德和实际的矿物加工操作。 在环境方面，作为能源和磨损函数的运营成本可以用二氧化碳排放当量吨表示，如Leinster镍业务示例所示。因此，有助于降低粉碎磨损成本可以影响京都足迹，并在加拿大的背景下，有助于实现我们的京都承诺。在科学方面，该项目有助于更好地了解应用环境中的磨损机制，并有助于增加磨损知识库。

The ultimate goal of the P9 series of research projects and for that matter of any research project in mineral processing is the reduced operating cost. In comminution processes, this cost is measured in financial terms as a function of energy and steel consumption.  In the present project, wear of different comminution processes will be investigated with a particular emphasis on wear of tumbling (ball, AG/SAG, rod) mill steel media and liners with the goal to develop lab tests and techniques that will contribute to predict and then to minimise wear in these processes.  It should be noted that wear in tumbling mill can represent up to half of grinding cost in a given operation. Steel media and liner wear investigations will use and further refine the test equipment built. The wear of other processes (HPGR, stirred mills, regrind) will be also studied as well as the development of a coupled abrasion-corrosion model. Cost of process wear in all of these cases will be measured as a function of energy and steel consumed. Specifically, the project objectives are (i) to complete steel media wear model validation, (ii) to define, develop and validate a liner wear model, (iii) to explore wear models for other comminution processes (HPGR, regrind & stirred mills) and (iv) to explore a coupled abrasion-corrosion steel media wear model. The value and benefit of this project can be measured not only in economic terms as contributing to reducing operating cost with respect to comminution process wear but also in environmental and scientific terms. In economic terms, better wear prediction will lead to wear cost minimisation in comminution processes both in Greenfield and actual mineral process operations.  In environmental terms, operating costs as a function of energy and wear can be expressed in equivalent tonnes of CO2 emissions as illustrated by the Leinster nickel operations example. Therefore, contributing to lower comminution wear costs can impact on the Kyoto footprint and contribute in the Canadian context to meeting our Kyoto commitment. In scientific terms, this project contributes to a better understanding of wear mechanisms in an applied context as well as contributes increasing the knowledge base in wear.