Advances on the Fragmentation-Energy Fan Concept and the Swebrec Function in Modeling Drop Weight Testing

The breakage index equation (BIE), or t10 model from drop weight testing (DWT) data for rocks and ores is used in the design of crushers mills. Such models are becoming increasingly difficult to visualize as number variables increases. so-called double fan BIE, combined with Swebrec distribution’s accurate description sieving curves, applied modelling drop-weight test fragmentation. key parameters geometric properties visible plot; slopes straight lines their point convergence. ability BIE reproduce DWT had been previously established 8 480 sets. Here fidelity further evaluated 18 new materials, based on 281 three par current state-of-the-art materials. Besides equation, BIE’s produces, without additional fitted constants, general surface tn an arbitrary n value a bonus. specific curve any combination particle size impact energy also contained same formula. result accurate, compact transparent model.