Waste-to-energy · Biomass · CFB · Incinerator
Refractories for Waste & Power Plants Industry
Waste-to-energy boilers, biomass combustors and circulating fluidised-bed (CFB) power plants face the most aggressive combination of abrasion, sulphur, chlorine and thermal cycling found in modern industry. Refractory life in a chlorine-loaded municipal-waste boiler is measured in months, not years — chloride salts attack alumina at 800 °C and silica binders dissolve in alkali condensates. Biomass adds K and Na slagging. CFB risers add fluidised particulate erosion that abrades any soft surface. firebrickssource.com — a Rajkot, Gujarat, India based manufacturer-cum-merchant exporter of refractory bricks — supplies SiC-based and abrasion-resistant linings engineered for these conditions, with low-iron, low-cement compositions designed to maximise tube protection and minimise downtime.
Wear mechanisms · WtE & CFB
Pain points in waste & power refractories
Chlorine corrosion (WtE)
HCl + alkali chlorides aggressively attack alumina silicates at 600 – 900 °C. Solution: dense SiC tiles and bricks with low-iron mortar.
Abrasion in CFB risers
Recirculating sand and ash at 6 – 10 m/s erodes hot-face in months. Solution: SiC + alumina-spinel composite bricks.
Slagging in biomass
K and Na ash forms low-melting eutectics that flux refractory. Solution: 70% high-alumina with spinel additions and dense matrix.
Matched refractory products
Recommended refractories for waste & power
Silicon-Carbide Bricks & Tiles
WtE first-pass, CFB combustor, biomass cyclones. Outstanding abrasion + Cl resistance.
60% High-Alumina
Cooler-zone second pass, incinerator back-up, boiler refractory liner.
70% High-Alumina
Incinerator hot zone, biomass furnace walls, severe-service WtE inserts.
K-28 Insulating Fire Brick
Boiler back-up insulation. Behind dense SiC or alumina hot-face.
Custom Precast Shapes
Burner blocks, cyclone diplegs, ash hopper inserts and grate refractories drawn to your boiler.
Zone-by-zone specification
Application zones — waste & power
| Boiler zone | Recommended brick | Temperature °C | Key property |
|---|---|---|---|
| WtE first pass | Dense SiC | 1100 | Cl + abrasion |
| WtE second pass | 60% high-alumina + insulating | 900 | Cooler zone |
| Biomass furnace | SiC + 70% alumina | 1200 | Slag + abrasion |
| CFB combustor | SiC + alumina-spinel | 950 | Particulate |
| Incinerator hot zone | High-alumina 70% | 1300 | Hot service |
| Boiler refractory | K-28 + 60% alumina | 1100 | Insulation |
Related categories
Adjacent product families
Browse specialty refractories, high-alumina bricks, insulating IFB, special shapes and the parent product index, or return to industries.
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Boiler engineers on call
Send waste analysis (Cl, S, ash), boiler drawing and tube layout — we'll propose SiC tile + back-up plus precast for the hopper.
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