Optimization of Blast Furnace Throughput Based on Hearth Refractory Lining and Shell Thickness

• Autorzy: Ossia Chinwuba Victor , Uzoma Shedrack Mathew

Identyfikatory

DOI

10.7494/jcme.2021.5.1.5

• Języki publikacji: EN

Abstrakty

EN

Computational analyses were performed to optimize the furnace throughput, steel shell and lining thickness of a blast furnace. The computations were done for measured parameters within the hearth region as this is the vital zone of the furnace with high temperature fluctuations, molten iron, and slag production. The lining materials were namely 62% high alumina (A), carbon composite (B), silicon carbide (C) and graphite bricks (D) with thermal conductivities 2, 12, 120 and 135 W/(m∙K), respectively. It was observed that by varying the refractory lining thickness from 0.2–0.35 m, and furnace inside temperatures from 1873–2073 K, certain optimal conditions could be specified for the furnace under consideration. Silicon carbide and graphite brick linings which have higher thermal conductivities, melting points, good chemical and mechanical wear resistance were observed to be the best hearth lining materials. Due to the high thermal conductivities of these two materials, the hot face temperature levels of the lining materials would be lowered. Amongst the four lining materials employed, silicon carbide and graphite bricks when used with lining cooling systems could optimize the blast furnace for better performance, production, and longer campaigns.

Słowa kluczowe

EN

hearth region; lining thickness; furnace optimization; chemical wear resistance; mechanical wear resistance; longer campaigns

PL

rejon paleniska; grubość wymurówki; optymalizacja pieca; chemiczna odporność na zużycie; mechaniczna odporność na zużycie; dłuższe kampanie

• Wydawca: AGH University of Science and Technology Press
• Czasopismo: Journal of Casting & Materials Engineering
• Rocznik: 2021
• Tom: Vol. 5, no. 1
• Strony: 5--13
• Opis fizyczny: Bibliogr. 11 poz., rys., wykr.

Twórcy

autor

Ossia Chinwuba Victor

• Department of Mechanical Engineering, University of Port Harcourt, Port Harcourt, Nigeria

autor

Uzoma Shedrack Mathew

• Department of Mechanical Engineering, University of Port Harcourt, Port Harcourt, Nigeria

Bibliografia

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• [9] Bhagat P.K. (2015). Optimization of refractory lining used in blast furnace. National Institute of Technology Rourkela-India [Masters Thesis].
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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021)