Estimation and correction of the burden during the process of blast-furnace smelting

Zagreba, A. V.; Slin'ko, N. F.; Fedorenko, G. I.

doi:10.1007/bf00741537

Cited by 1 publication

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“…Attempts are made to estimate the limestone addition in BF burden. Zagreba et al [6] have reported the periodic estimation and correction of the burden to calculate the quantity of limestone requirement using the simplified method. However, the model is based on the mass balance and the flux quantity is not optimized in this process.…”

Section: Introductionmentioning

confidence: 99%

Improving the burdening practice by optimization of raw flux calculation in blast furnace burden

Agrawal

Singh

2019

Ironmaking & Steelmaking

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The determination of hot metal and slag composition is of utmost importance for the smooth operation of the blast furnace. In the present work, an attempt is made to bridge the gap between theoretical slag composition and actual slag chemistry by encapsulating the theoretical burden calculation with the flux optimization technique. The burden calculation model optimizes the amount of raw material wherein the amount of flux is optimized using matrix operations iteratively to attain the target chemical composition of the slag. Based on the target slag composition, the best combination of fluxes is predicted that closely meets the target slag compositions. The model suggests the optimum amount of fluxes and subsequently, the desired burden matrix setpoints are downloaded to the controller controlling the blast furnace charging system. It has been shown that the burden calculation model has resulted into reducing the variability in slag basicity, MgO and Al 2 O 3 values.

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Section: Introductionmentioning

confidence: 99%