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Chinese Journal of Management Science ›› 2013, Vol. 21 ›› Issue (6): 139-144.

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Modelling and Optimization of Grades Decision Problem Under “Five Grades Ganged” Mode

SHAO An-lin   

  1. Anshan Iron and Steel Group Corporation, Anshan 114001, China
  • Received:2013-07-24 Revised:2013-09-07 Online:2013-12-29 Published:2013-12-23

Abstract: In mining metallurgical engineering, the geological grade, mining grade, feed grade, concentrate grade and charged grade are reciprocal and interactive and the dynamic optimization of them is basic to the "five grades ganged" engineering management mode. Firstly, the grade capacity relationship in the production stages is analyzed, including mining, ore blending, beneficiation and smelting. The grade-cost relationship model and the related grade-cost marginal model are derived. The grade chained cost models are then built and a Grade-Cost Marginal Index (GCMI) is also proposed. At last, a "five grades ganged" optimization method is developed to adjust the grades.A series of numerical samples from the Ansteel Mining are applied to the modes to compute the practical analysis results which are all reasonable to the production situation.

Key words: grade, marginal cost, Grade-Cost Marginal Index (GCMI), grades optimization

CLC Number: