Electric Arc Furnace (EAF) Dust
EAF Dust · Steelmaking Dust · Zinc-bearing Dust
Electric Arc Furnace (EAF) dust is a fine particulate byproduct captured from the air pollution control systems of steelmaking furnaces. It is composed mainly of zinc and iron oxides, along with smaller amounts of lead, cadmium, and other metals. Because EAF dust is classified as a hazardous waste under RCRA due to heavy metal content, its handling requires specialized, enclosed systems that prevent dust release and exposure. KWS provides durable and sealed conveying equipment designed for containment and environmental compliance.
Overview
Chemical Formula
Common Names
Common Forms
Applications
- Recycling and recovery of zinc and other metals
- Cement kiln feed additive (limited use)
- Hazardous waste stabilization and disposal
- Feedstock for Waelz kiln or hydrometallurgical processes
Material Characteristics
| Property | Value / Description |
|---|---|
| Common Forms | Fine, dry powder |
| Bulk Density | 60–100 lb/ft³ (depends on zinc and iron content) |
| Flow Behavior | Cohesive and dusty; prone to packing and bridging |
| Abrasiveness | Moderate to High contains hard metal oxides |
| Corrosiveness | Moderate depending on metal content and moisture exposure |
| Dust Potential | Very High hazardous airborne particulates require full containment |
Handling Challenges
- Hazardous fine dust requiring sealed and ventilated systems
- Material buildup and caking in conveying equipment
- Abrasive wear on screw and chute surfaces
- Worker exposure and environmental compliance concerns
- Moisture-induced corrosion and material hardening
Summary
Electric Arc Furnace (EAF) dust presents significant handling challenges due to its hazardous composition, fine particle size, and abrasive characteristics. KWS Manufacturing provides engineered conveying solutions—including enclosed screw conveyors, drag conveyors, and dust-tight feeders—to ensure safe material movement and regulatory compliance.
With decades of experience handling metallurgical byproducts, KWS ensures reliable, safe, and low-maintenance operation for EAF dust handling applications.
