Low Silicon and Low Cost Smelting Practice of Jinan Steel’s BFs
LIU Cunfang
LIU Delou
MENG Lingjun
AN Ming
WANG Cong
Abstract：Taking air flow increasing as the core, a series of technical measures have been taken in Jinan Steel which are the adjustment of air blowing system, reducing height of melt cohesive zone and compress dripping zone, raising ratio of sinter materials and reducing the slow wind rate and halt. Therefore the technical problems caused by high slag ratio, high Al2O3 were solved, the target of low silicon smelting and high-efficient smelting has been realized and the pig iron cost was reduced. A series of parameter level such as air flow and its temperature, blast furnace top pressure could be improved. The silicon content of molten iron were achieved at lowest level of history, and the pig iron cost substantially reduced to 44.1 Yuan per ton.
Keywords：air flowair blowing systemgrog ratiolow-silicon smeltinglow cost
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( 45-47 )