Application of Strong Power Smelting Technology in Jinan Steel's BF
LI Lei
DENG Yong
Abstract：Because of smelting using economy raw material, the ore comprehensive grade was lower, the slag ratio and the Al2O3 content in slag were higher, then, the permeability and liquid-penetration of BF were poor and the slag viscosity was largeer. Therefore, Jinan Steel adopted strong power smelting technology in 1 750 m3 and 3 200 m3 BFs: increasing blast momentum by extending the tuyere length and narrowing the air area to improve the hearth active, and improving the final slag performance by ameliorating distribution, thermal and slagging system. The BF's regular and stable performance for long-term can be realized. At the same time, the outputs were improved, the Si content in pig iron is decreased and the fuel radio reduced by 20 kg/t.
Keywords：blast furnaceeconomy raw materialstrong power smeltingfuel radio
Publication Date：2015-01-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：3( 4-6 )