Power industry
Introduction:
The power generation industry, especially circulating fluidized bed (CFB) boilers, pulverized coal boilers, and waste-to-energy incinerators, operates under extremely harsh conditions: high temperatures, high-speed particle erosion, strong chemical corrosion, frequent thermal cycling, and complex atmospheres. Refractory materials must possess excellent abrasion resistance, corrosion resistance, thermal shock resistance, and high mechanical strength. Zhengzhou Jinshan Refractory Materials provides professional refractory solutions for different power generation equipment, helping customers extend service life, improve boiler efficiency, and reduce unplanned shutdowns.
1. Circulating Fluidized Bed (CFB) Boiler
Working Conditions:
CFB boilers are widely used in coal-fired power plants. The combustion chamber experiences high-speed particle abrasion and impact, strong chemical corrosion from sulfur and alkali metals, and frequent thermal fluctuations. The dense phase zone, dilute phase zone, cyclone separator, and return feeder face particularly severe erosion and thermal shock.
Recommended Refractory Materials and Advantages:
- Dense low-cement castables (e.g., RSNM-B type): High mechanical strength and excellent abrasion resistance. Ideal for dense phase zone, dilute phase zone, and furnace roof.
- Plastic castables / Ramming mixes (e.g., RSMNKS): Good plasticity and strong erosion resistance, suitable for fluidization sections and complex areas.
- High-alumina bricks (RSNM-75) and dense castables (RSNM-A): Used in cyclone separators, straight and conical sections, return feeders, and gate valves for superior abrasion and corrosion resistance.
2. Economizer & Tail Flue
Working Conditions:
The economizer and tail flue operate at medium to low temperatures (300–800°C) but face flue gas corrosion, fly ash abrasion, and dew point corrosion from sulfur compounds.
Recommended Refractory Materials and Advantages:
- High-alumina bricks (RSZGN-42) and dense castables: Good abrasion and acid corrosion resistance.
- Lightweight insulating castables (RSQZ-0.7 / RSQZ-0.3): Excellent thermal insulation performance, reduce heat loss, and lower outer shell temperature.
- Ceramic fiber blankets: Used in economizer beams and insulation layers for superior insulation and easy installation.
3. Ignition Air Duct & Cooling Chamber
Working Conditions:
These areas experience rapid temperature changes during startup and shutdown, along with moderate abrasion and thermal shock.
Recommended Refractory Materials and Advantages:
- High-strength castables (RSJZL-1 and RSNT-2): Excellent thermal shock resistance and good construction performance, suitable for frequent start-stop conditions.
4. Other Power Generation Equipment
Working Conditions:
Includes pulverized coal boilers, biomass boilers, waste-to-energy incinerators, and desulfurization systems, which face different combinations of high temperature, corrosion, and abrasion.
Recommended Refractory Materials and Advantages:
- Silicon carbide-based and high-alumina castables: For high-abrasion and high-temperature zones.
- Corrosion-resistant specialty castables: For waste incinerators and desulfurization units.
- Lightweight and insulation materials: Widely used to improve overall boiler thermal efficiency.
Why Choose Jinshan Refractories?
- Rich experience in power plant refractory projects, especially CFB boilers
- Strict quality control and advanced testing equipment
- Customized material selection based on boiler type, fuel (coal, biomass, waste), and operating conditions
- Professional technical support, installation guidance, and reliable after-sales service
Ready to Find the Right Refractory Solution for Your Kiln?
Contact our technical team for professional refractory solutions, detailed quotations, and customized product recommendations.
Contact Us
whatsapp:+8615936268068
Phone:+86-15936268068
Email:zzjsrefractory@gmail.com
Address: Chengguan Industrial Zone, Xinmi City, Henan Province
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