Abstract
The proper ratio decision of sintering burden is a significant section for both of decreasing sintering costs and increasing quality of iron. At present most company in China take the Fixed-ratio method and linear programming (LP) model to calculate the proper ratio for sintering. The former is the performance appraisal method for production cost management of iron. The latter is to use maths method to improve the computation process. This paper brings up a linear fractional programming (LFP) model combining the advantages of both methods to compute the proper ratio to minimize the iron cost per ton for sintering. Next based on the production data from some steel company this paper takes use of MATLAB to solve the problem. Then comparing the solutions with the original method, the traditional LP model and LFP model the conclusions are revealed in the end.
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