Slag Cooler for Circulating Fluidized Bed Boiler – High‑Performance Heat Recovery
Why Our Slag Cooler Leads the Market
Engineered for the toughest circulating fluidized bed (CFB) installations, our slag cooler for circulating fluidized bed boiler delivers consistent temperature reduction while preserving slag integrity. The design combines robust stainless‑steel construction with optimized flow channels, ensuring minimal pressure drop and maximum heat‑transfer efficiency. Procurement managers appreciate the proven reliability, low‑maintenance footprint, and compliance with international standards such as ISO 9001 and ASME Section VIII. The result is a cooler that keeps plant uptime high and operating costs low.
Where It Adds Value
The unit fits seamlessly into both new builds and retrofit projects across power generation, waste‑to‑energy, and cement manufacturing. In a 300 MW CFB plant, the cooler can handle up to 120 t/h of hot slag, extracting up to 15 % of the waste heat for feed‑water pre‑heating or district heating. Its compact footprint (typically 2.5 m × 1.8 m × 1.2 m) makes it ideal for space‑constrained retrofits, while the modular design allows parallel operation for larger capacities. Clients also use the cooler to meet stricter emission limits by reducing the temperature of slag discharged to downstream quench systems.
Technical Specifications (customizable per order)
| Parameter | Typical Range | Unit |
|---|---|---|
| Maximum slag flow rate | 80‑150 | t/h |
| Design inlet temperature | 950‑1150 | °C |
| Outlet temperature (typical) | 300‑500 | °C |
| Material of construction | AISI 316L SS / Hastelloy C‑276 (optional) | ‑ |
| Pressure drop | 0.8‑1.4 | bar |
| Design life | >20 | years |
| Warranty | 24 | months |
Product Overview
The slag cooler for circulating fluidized bed boiler is a turnkey heat‑recovery component that integrates a patented double‑tube heat‑exchange core with a self‑cleaning slag‑drain system. The core consists of concentric tubes arranged to create high‑velocity water spray that extracts heat efficiently without causing thermal shock to the surrounding structure. An internal baffle network promotes uniform flow, preventing hot‑spots and reducing corrosion risk. The unit is supplied with a standard control panel that offers real‑time temperature, flow, and pressure monitoring, compatible with most DCS/SCADA platforms.
Frequently Asked Questions
What is the minimum order quantity (MOQ) for a custom‑size cooler?
Our standard catalogue includes units from 80 t/h to 150 t/h capacity. For projects requiring a specific capacity outside this range, the MOQ is one unit, as each cooler is fabricated to order. Engineering support is provided at no extra cost to validate the design against your process data.
Can the material of construction be changed to suit aggressive slag chemistry?
Yes. While the baseline uses AISI 316L stainless steel, we can switch to Hastelloy C‑276, high‑nickel alloys, or even custom‑coated carbon steel upon request. Material selection is coordinated with your metallurgical analysis to guarantee long‑term durability.
What is the typical lead time from order to delivery?
Standard models ship within 15‑30 days after order confirmation and receipt of the down‑payment. Custom configurations, including special alloys or non‑standard dimensions, extend the lead time to 30‑45 days, depending on material availability and engineering scope.
Do you provide warranty and after‑sales service?
All units carry a 24‑month warranty covering material and workmanship. Our technical team offers on‑site commissioning, performance testing, and a 24/7 hotline for troubleshooting during the warranty period. Extended service contracts are available on a yearly basis.
Ready to improve heat recovery and lower emissions? Contact our engineering sales team today to discuss your specific CFB boiler requirements and receive a no‑obligation quotation.