Fly Ash
Pulverized Fuel Ash · Coal Ash · Power Plant Ash
Fly ash is a fine, powdery byproduct generated from the combustion of pulverized coal in electric power plants. It consists primarily of spherical glassy particles rich in silica and alumina. Fly ash is lightweight, highly aeratable, and prone to dusting, posing significant challenges for storage, conveying, and dust control. KWS designs robust, dust-tight equipment to handle fly ash safely and efficiently while maintaining environmental compliance.
Overview
Chemical Formula
Common Names
Common Forms
Applications
- Supplementary cementitious material in concrete and cement production
- Soil stabilization and structural fill
- Asphalt and road base additive
- Waste solidification and environmental remediation
Material Characteristics
| Property | Value / Description |
|---|---|
| Common Forms | Fine, dry powder |
| Bulk Density | 35–70 lb/ft³ (depends on source and carbon content) |
| Flow Behavior | Fluidizable and aeratable; prone to flooding and flushing |
| Abrasiveness | Moderate contains hard, glassy particles |
| Corrosiveness | Low Slightly corrosive when combined with moisture |
| Dust Potential | Very High fine particles require full containment and dust collection |
Handling Challenges
- Severe dusting requiring enclosed conveying and filtration systems
- Flood-feeding or flushing behavior during discharge
- Material buildup and plugging in bends and feeders
- Abrasive wear on screw and housing surfaces
- Corrosion risk when exposed to moisture
Summary
Fly ash requires specialized handling systems designed for dust control, abrasion resistance, and consistent flow. KWS Manufacturing provides engineered solutions—including screw conveyors, drag conveyors, and ash conditioners—that ensure safe, reliable, and efficient transport of fly ash in power generation and industrial applications.
With extensive experience handling fine, aeratable, and abrasive bulk solids, KWS ensures long-lasting performance and regulatory compliance for fly ash handling systems.
