Hearth Erosion Comparative Analysis of Three 1 750 m3 Blast Furnaces in Jinan Steel
ZHANG Xiaowei
Abstract：The hearth erosion of three 1 750 m3 blast furnaces campaign life was analyzed. The carbon blocks remaining thickness or key parts of carbon bricks remaining thickness has been measured during the raking out furnace. The results showed that erosion worst position of three furnaces was in the direction of taphole, but hearth erosion of three furnaces is different. The biggest difference is that the blast furnace No.2 and No.3 have a more serious ring crack, and the ring crack is in the same position. Analysts believe that the ring crack with the carbon brick material has little relationship with the design structure. It proposed that the possibility of reducing the cooling water flow in bottom and increasing in hearth to delay hearth sidewall erosion speed, and improvement of hearth structure design to be further explored.
Keywords：blast furnaceheartherosioncarbon brick crackinghearth structure
Publication Date：2016-01-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：3( 41-43 )