Hearth Erosion Analysis and Countermeasures of Jinan Steel’s 1750 m3 BF in the Later Stage of Campaign
ZHANG Leizhong
ZHANG Guoying
CHU Qiang
WANG Cong
WANG Hongrui
Abstract：Furnace protection practice of Jinan Steel’s No.2 1 750 m3 BF in the later stage of campaign and the hearth erosion model showed that the hearth sidewall erosion was presented large mushroom. The analysis considered that the main reasons of the hearth erosion were the influences of hot metal circulation and high heat flux in the local; In addition, iron notch arrangement with 90° angle and long-term frequent use of cleaning agent exacerbated the hearth erosion. By improving grouting operation and developing local strengthening cooling technology, the cooling effect of the hearth was enhanced. At the same time, by optimizing operation system, the brick lining erosion was mitigated. Therefore, the hearth work safety in the later stage of campaign was ensured.
Keywords：blast furnacelater stage of campaignhearth erosionfurnace protection
Publication Date：2014-01-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：3( 7-9 )