The Burden Column Structure and Gas Distribution in a DRI Shaft Furnace

Via the observations of an on-line infrared camera inside a direct reduced iron (DRI) shaft furnace above the burden bed (DRI-ABirC), it is discovered that (1) there is an obvious and continuous central gas flow from the pellet bed top in the DRI shaft furnace of AMTX, (2) the pellets are fed into the DRI shaft furnace periodically, rather than continuously, (3) below a critical level, there is a central pellet/DRI cone of low porosity and of slower descending rate, and (4) the mechanism of the pellet feeding in the periodical pattern. This paper will present these discoveries.

Authors:

Dr. Dianbing Huang | ArcelorMittal Global R&D - East Chicago
 

Mr. Marcelo Andrade | ArcelorMittal Global R&D - East Chicago
 

Mr. David White | ArcelorMittal Global R&D - East Chicago
 

Mr. Philipp Aufreiter | ArcelorMittal Texas HBI LLC
 

Mr. James Beaver | ArcelorMittal Texas HBI LLC
 

Mr. Ruy Cavicchia | ArcelorMittal Texas HBI LLC
 

Ms. Elaine Chen | ArcelorMittal Texas HBI LLC
 

Jason Reid | ArcelorMittal Texas HBI LLC
 

Dr. Michael Spitz | ArcelorMittal Texas HBI LLC
 

Session Chairs:

Mitren Sukhram | Hatch
 

Nick Sosalla | Barr Engineering
 

Bill King | Cleveland-Cliffs West Chester