喷吹煤结构与铁水成本寻优模型的应用

Application of pulverized coal blending structure and hot metal cost optimization model

选择Microsoft Visual Basic 6.0作为编程语言,Microsoft Office Access作为数据平台,调用MatrixVB的线性规划搭建优化模块配料计算,开发了高炉喷吹煤结构与铁水成本寻优模型。该模型包含了高炉喷吹煤数据库,具备定性评判喷吹煤资源和喷吹煤单种煤性价比的功能,可定量计算且推导出需要的结果。该模型能够对基础配煤方案进行优化,给出优化配煤方案及降成本幅度,从而有利于喷吹煤降成本决策。2016年首钢某地高炉使用该配煤软件,优化了配煤结构,经过模型评价的性价比较好的A煤在工业试验中得到了应用。A煤比例为35%的工业试验期间,高炉顺行程度提高,技术经济指标良好;由于A煤性价比高使得铁水成本降低2.74元/t,目前该模型已在首钢多地进行推广使用。

The optimal model of pulverized coal blending structure and the hot metal cost is developed by selecting Microsoft Visual Basic 6.0 as the programming language,and Microsoft Office Access as the data platform,and using the linear programming of MatrixVB to set up the optimization module of burden calculation.The PCI database is included in the model.It has the function of evaluating the coal resources.Also,it can be quantitatively calculated and deduced the desired results.The model can evaluate coal cost performance,give optimizing blending plan and cost down range.This is valuable to the decision-making of PCI cost reducing.The blending model was tried out in some blast furnace in 2016,and the structure of coal blending was optimized.One cost-effective coal A was used up to 35% .The blast furnace was in better condition during the industrial test period.The cost of hot metal was reduced 2.74 yuan/t for coal A.Now this model has been applied in several plants of Shougang.