Influence of Shape of Cohesive Zone on Gas Flow and Permeability in the Blast Furnace Analyzed by DEM-CFD Model

Shigeru Ueda; Tatsuya Kon; Hiroyuki Kurosawa; Shungo Natsui; Tatsuro Ariyama; Hiroshi Nogami

doi:10.2355/isijinternational.55.1232

Regular Article

Influence of Shape of Cohesive Zone on Gas Flow and Permeability in the Blast Furnace Analyzed by DEM-CFD Model

Shigeru Ueda , Tatsuya Kon, Hiroyuki Kurosawa, Shungo Natsui, Tatsuro Ariyama, Hiroshi Nogami

Author information

Keywords: blast furnace, numerical simulation, DEM-CFD model, cohesive zone, gas permeability

JOURNAL OPEN ACCESS FULL-TEXT HTML

2015 Volume 55 Issue 6 Pages 1232-1236

DOI https://doi.org/10.2355/isijinternational.55.1232

Details

Abstract

Maintaining gas permeability is an important issue to realize low coke rate operation of blast furnace. In present study, the melting behavior of the iron ore and the layer structure in low coke rate operation were introduced in to the DEM-CFD model, and then behaviors of gas and moving bed in the blast furnace were simulated. Influence of shape of cohesive zone in low coke rate operation was investigated, and the effect of coke slit in the cohesive zone on gas flow was demonstrated in the calculation result. Surface area of cohesive zone and intersection angle between the burden layers and cohesive zone will determine the activity of coke slit.

Corresponding author

Register with J-STAGE for free!