Accretions in the Blast Furnace Stack - Background Factors

Fredman, Tom P.

doi:10.1179/cmq.2002.41.4.475

Cited by 7 publications

(3 citation statements)

References 4 publications

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“…This conclusion contrasts with the industrial practice by which the materials most commonly used to prolong the campaigns of hearths of blast furnaces are those of low porosity and high thermal conductivity. 15 This is one example where experimental results, although they were simulated, do not match with industrial practice. crucible, λ = 12 W × m -1 × K -1 .…”

Section: Case Study Iii-the Hearth Of a Blast Furnacementioning

confidence: 99%

Analyzing furnace-lining integrity using nodal wear modeling

Parra‐Saldívar

González

Barbés

et al. 2005

JOM

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Furnace Integrity OverviewThe Nodal Wear Model was developed to systematize the analysis of corrosion phenomena on refractory and ceramic materials that come in contact with corrosive fl uids in furnace linings. The model is based on the determination of the thermal fi eld in the furnace lining using a fi nite-element-method grid in which a second grid is defi ned to represent the surface of the lining that is attacked by the molten phases. Using a control equation for the wear-corrosion thermal-activated phenomena, a modification of the geometry is introduced and a new geometry is defi ned to restart the calculation.

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Section: Case Study Iii-the Hearth Of a Blast Furnacementioning

confidence: 99%

Analyzing furnace-lining integrity using nodal wear modeling

Parra‐Saldívar

González

Barbés

et al. 2005

JOM

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“…7) Therefore, Pb severely decreases the lifetime of refractories and is unfavourable in the blast furnace. 8,9) Since 70%-75% of burden materials in the blast furnace is sintered iron ore fines, the iron ore sintering process is the vital process to decrease the lead content in burden materials of the blast furnace. [10][11][12] However, the secondary iron-containing resources, which usually contain excess lead, are used in the iron ore sintering process for iron recovery and cutting down waste discharge.…”

Section: Introductionmentioning

confidence: 99%

Thermodynamic Simulation and Transformation Behaviours of Lead during Iron Ore Sintering

Wang

Fan

et al. 2021

ISIJ Int.

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“…Additionally, metallic Pb vapor is able to attack the shaft lining or condenses around the cooling plates . Like Zn and Pb, K is able to destroy the lining in the lower part of the blast furnace as well as in the shaft region . In the bosh area (area above the blast furnace tuyeres), K can penetrate into monolithic aluminosilicate.…”

Section: Introductionmentioning

confidence: 99%

Distribution of Zn, Pb, K, and Cl in Blast Furnace Lining

Trinkel

Aschenbrenner

Thaler

et al. 2016

steel research int.

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The furnace campaign of a blast furnace represents an important factor for the iron-making industry due to the fact that maintenance such as relining is not only costly but also time consuming. The furnace campaign is largely determined by the functionality of the lining, which is influenced by wear mechanisms and the damaging behavior of certain elements.To these unwanted elements that may attack the lining belong, for example, Zinc (Zn), Lead (Pb), Potassium (K), and Chlorine (Cl). In this paper, the distribution of Zn, Pb, K, and Cl within the lining of a blast furnace at the end of its furnace campaign is investigated and discussed. The results demonstrate that the content of some elements (Zn, Cl, Pb) in the lining and also their penetration depth significantly varies over the blast furnace height. For Zn and Pb, the highest contents (43 g Zn kg À1 and 0.14 g Pb kg À1 ) are observed in the inner lining stones (adjacent to the hot metal), whereas for Cl, a contrary distribution pattern is observed. The highest contents are detected in the outer stones of the lining at the top of the blast furnace.

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Accretions in the Blast Furnace Stack - Background Factors

Cited by 7 publications

References 4 publications

Analyzing furnace-lining integrity using nodal wear modeling

Analyzing furnace-lining integrity using nodal wear modeling

Thermodynamic Simulation and Transformation Behaviours of Lead during Iron Ore Sintering

Distribution of Zn, Pb, K, and Cl in Blast Furnace Lining

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