Development and Prospects of Comminution Energy Consumption Theory
Comminution operations electricity consumption in mine account for nearly 2%of the global total electricity consumption,and are also the most energy-consumptive operating unit in mining production.The energy consumption prediction of comminution process is an essential part of carbon emissions and energy management,mine-site production management,and digital mine construction.This paper reviews the three classic theories on comminution energy consumption by Kick,Rittinger,and Bond,with a focus on introducing the development process of Bond's theory and discussing its limitations in modern com-minution process production practice.Various emerging theories of comminution energy consumption that have been proposed since the 1970s are introduced.The predictive accuracy of the Bond theory model and the emerging theory models for comminu-tion process unit energy consumption are discussed and compared.The application value of energy-based comminution models are summarized in four aspects:comminution process design and equipment selection,comminution process operation efficiency evaluation and optimization,metal mine production capacity prediction and management,and metal mine comminution energy consumption carbon evaluation model.Although the lack of independent intellectual property rights in this field poses obstacles to data security and mining production of China,with the rapid development of digital and intelligent construction in domestic mines,the energy-based comminution models in China is bound to experience significant breakthroughs in a relatively short pe-riod of time.
comminution energy consumption theorycarbon emission assessmentintelligent minesiteore breakage char-acteristics
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