| ‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘ KAWASAKI STEEL TECHNICAL REPORT No.38 ( April 1998 ) Ironmaking Technology and Tubular Products Technology ‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘ |
| Development of a Blast Furnace Operation
Simulator and its Application for Reduction
of Si Content of Pig Iron Takeshi Sato, Taihei Nouchi, Mitsuru Kiguchi |
| Synopsis: A total blast furnace simulator has been developed for the planning of maintaining the best stable operation performance with inferior burden materials. The simulator has the following features: (1) Layer profile of burden materials is predicted with high accuracy. (2) Gas flow and heat transfer in the cohesive zone are modeled by focusing, with a special attention paid, on layer structure. (3) Size degradation of burden materials is modeled. The simulator has been used to precisely predict the results of operational changes for various purposes such as, [Si] reduction operation and stable operation with small size sinter. In this paper, the [Si] reduction at No. 3 blast furnace at Mizushima Works is described as a typical application of the simulator to deal with the changes of charging sequence at the bell-less top. |
| TextiPDF: 8p./367kbj |