Research Progress of Iron Carburization in Blast Furnace

Zhang, Zhenyu; Zhang, Jianliang; Jiao, Kexin; Liu, Zhengjian

doi:10.1002/9781119093381.ch80

Cited by 1 publication

(1 citation statement)

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“…The following assumptions are made for the calculation of coupled direct reduction carbon loss: the coke carbon loss rate is 30% before coke falling into the raceway [19,28]; before coke falling into raceway, the coke carbon loss is caused by coupled direct reduction, hot metal carburization, coke volatiles and coke fines that is discharged into dust; the carbon loss of molten direct reduction is ignored before coke drops into raceway; the hot metal carburization can be completed 80% before hot metal droplets drop into raceway [29,30].…”

Section: Calculation Of Carbon Lossmentioning

confidence: 99%

Multi-Objective Optimization of Cost Saving and Emission Reduction in Blast Furnace Ironmaking Process

Yao

Song

et al. 2018

Metals

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Due to the increasing environmental pressures, one of the most direct and effective way to achieve emission reduction is to reduce the CO2 emissions of the blast furnace process in the iron and steel industry. Based on the substance conservation and energy conservation of ironmaking process and the engineering method, the carbon loss model was firstly established to calculate the amount of solution loss. Based on this model, the blast furnace emission reduction optimization mathematical model with the cost and CO2 emissions as objective functions was then established using the multiple-objective optimization method. The optimized results were obtained by using the GRG (Generalized Reduced Gradient) nonlinear solving method. The optimization model was applied to the B# blast furnace of BayiSteel in China. The optimization model was verified by comparing the optimized results with the actual production data. The optimization model was then applied to analyze the effects of coke ratio, coal rate, blast temperature and other factors on the cost, CO2 emission and solution loss, and some measures to save cost, reduce emissions and reduce solution loss have been proposed.

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Section: Calculation Of Carbon Lossmentioning

confidence: 99%