Coke cost performance comprehensive evaluation method for blast furnace ironmaking

Abstract

The application discloses a kind of blast furnace ironmaking with coke performance-price ratio comprehensive evaluation method, comprising the following steps: the dry basis ash content of different kinds of coke, combustible base volatile matter, dry ash-free basis sulfur content, etc., and reactivity CRI And post-reaction strength CSR, wear resistance M 10 And crushing strength M 25 Three new indicators for evaluating coke quality, coke particle size distribution concentration CSS, coke oxidation resistance index RO, coke dissolution loss 50% required time CRI 50 These data are combined with a reference coke, and the net coke ratio is obtained by calculation. Combined with factors such as price, the coke performance and performance-price ratio ranking is obtained. The application makes a more scientific and comprehensive evaluation of the performance and performance-price ratio of coke by combining existing coke indicators with new indicators and considering the price of coke comprehensively. It solves the problem that the actual effect of some types of coke is relatively poor despite good indicators in the existing evaluation system. It also improves the inaccurate evaluation of coke performance-price ratio by only considering the purchase price and single dimension, and perfects the coke evaluation system, providing guidance for the production and use of blast furnace ironmaking coke.

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