ORAL

SESSION: IronMonAM-R10	5th Intl. Symp. on Advanced Sustainable Iron and Steel Making
Mon Oct, 23 2017	Room: Maria Mercedes & Maria Beatriz
Session Chairs: Tateo Usui; Mery-Cecilia Gomez-Marroquin; Session Monitor: TBA

15:00: [IronMonAM06]
Influence of Improvement of the Sinter Screening in CSA Blast Furnace Process
Geovane Silva¹ ; Bruno Pinheiro Da Silva² ; Andre Hirano³ ; Marilene Landin⁴ ; Maxwell Pereira Cangani⁵ ; Ennes Landin⁶ ;⁰ ; ¹Thyssenkrupp CSA, Rio de Janeiro, Brazil; ²ThyssenKrupp CSA, Rio de Janeiro, Brazil; ³ThyssenKrupp, Rio de Janeiro, Brazil; ⁴Thyssenkrupp CSA, Santa Cruz, Brazil; ⁵thyssenkrupp CSA, Rio de Janeiro, Brazil; ⁶, , ;
Paper Id: 317 [Abstract]

One of the main parameters in the gas flow distribution in a Blast Furnace is the size distribution. In the CSA Blast Furnaces, the sinter fines extraction was improved through sieves adjustments in the stock house, and a better gas flow control into the Blast Furnace was observed. In this paper, it is possible to evaluate the influence of the improvement in the sinter screening process in the BF gas flow, and its impact in the reduction of thermal load standard deviation on the wall in the upper part of the Blast Furnace. By BF stable gas flow, an increase in the top gas efficiency and a decrease in the variation of the thermal load on the wall were observed. Fuel rate and Hot Metal production were also improved as a consequence of better gas flow distribution into Blast Furnace.