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Method for calculating optimum preparing and adding proportion of iron ore sintering

A calculation method and iron ore technology, applied in the field of iron and steel metallurgy, can solve the problem of inaccurate quantitative ore mixing plan and other problems

Inactive Publication Date: 2015-08-19
CENT SOUTH UNIV
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  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to develop a method for calculating the optimal ratio of iron ore sintering, to overcome the problem of inaccurate quantification of the ore blending scheme in the prior art. The method proposed by the present invention has the characteristics of accuracy, speed and practicality

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  • Method for calculating optimum preparing and adding proportion of iron ore sintering
  • Method for calculating optimum preparing and adding proportion of iron ore sintering
  • Method for calculating optimum preparing and adding proportion of iron ore sintering

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Embodiment 1

[0042] A method for calculating the optimal proportion of iron ore sintering, the calculation process is as follows figure 1 As shown in the figure, under the determined application environment, according to its sintering production requirements, gradually increase the proportion of a certain iron ore, and determine a group of ore blending plans with low ore blending cost and excellent sintering index. Carry out a comprehensive evaluation of the proportioned ore blending plan, and determine the proportion of iron ore with the highest technical and economic comprehensive evaluation index in this application environment and the corresponding ore blending plan.

[0043] The sintering process parameters and product quality index model structure are as follows: figure 2 As shown, in the model, a represents the Lagrange multiplier; b represents the deviation, which are the optimal solutions obtained by minimizing the error between the training sample and the optimal classification...

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Abstract

The invention discloses a method for calculating the optimum preparing and adding proportion of iron ore sintering. According to the method, according to the uniformly mixed ore chemical ingredient requirements and raw material physical and chemical properties and proportioning constraints, a method of combining linear planning and a genetic algorithm is adopted for calculating an initial ore proportioning scheme group; sintering process parameters, production quality indexes and ore proportioning costs of each ore proportioning scheme are calculated; the technical economic integral evaluation index of the ore proportioning scheme is calculated according to the ore proportioning cost, the sintering solid fuel mixture ratio and the sintering ore rotating drum intensity by using the coefficient, and the highest integral evaluation index is used as the selection basis of the best ore proportioning scheme; the iron ore purchase and the sintering production are guided; the technical support is provided for the popularization and the application of new ore types.

Description

technical field [0001] The invention belongs to the field of iron and steel metallurgy, and relates to a method for calculating the optimum proportion of iron ore sintering. Background technique [0002] As my country's steel production increases year by year, the demand for iron ore raw materials is also increasing. In order to solve the shortage of raw material supply, the main way is to import a large amount of iron ore and make full use of domestic ore resources. The imported ore has high iron content and few impurities, but the import price is high and there are many kinds. There is still a big gap between domestic iron ore production capacity and demand, and the variety is increasing, the quality is declining, and the particle size is getting finer and finer. At the same time, in order to reduce the production cost of sintering, domestic iron and steel enterprises actively use cheap low-grade ores and ores containing harmful elements, as well as some iron-containing i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B1/16
Inventor 陈许玲范晓慧甘敏黄晓贤姜涛李光辉袁礼顺郭宇峰杨永斌黄柱成张元波李骞杨桂明许斌
Owner CENT SOUTH UNIV
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