Advantages of Axial Cyclone vs. Inertial Spark Arresters Along the EAF Secondary Ducts: Field Experience and Future Developments Through CFD Analysis
(Room 202C)
08 May 17
10:00 AM
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10:30 AM
Tracks:
Baghouse & Fume Control
The installation of a spark arrester prior to the EAF’s offgas filter has become common practice for prolonging filter bag lifetime as carbon injection was increased. The axial cyclone efficiency has been optimized by sophisticated CFD programs in recent projects to achieve sufficient abatements starting from 125 microns, while simultaneously maintaining pressure drops to below 1 inch WG. Unlike parallel piped boxes, the centrifugal separators have more “wet” surfaces to absorb gaseous peaks generated by scrap charging fireballs. The recent developments obtained by CFD, associated with the new conical shape and optimized blades, could achieve savings of up to 5 kWh/tls when substituting non-optimized spark arresters.