Circulating Fluidized Bed (CFB) Power Station Boilers

Advanced Circulating Fluidized Bed (CFB) Power Station Boilers

Our state-of-the-art Circulating Fluidized Bed (CFB) boilers are engineered through an optimized design process, leveraging extensive experience in fluidized bed technology. These boilers feature a robust M-type layout, single-drum natural circulation, and a fully water-cooled furnace structure. The system incorporates a high-efficiency two-stage separator and a two-stage return device, ensuring stable and efficient operation. Built with an all-metal framework, these boilers are designed for durability and long-term performance in demanding power generation environments.

A key advantage of our CFB boilers is their exceptional fuel flexibility. They are capable of efficiently combusting a wide variety of fuels, including lignite, smokeless coal, lean coal, coal gangue, petroleum coke, and oil shale. This adaptability allows for high combustion efficiency even with high-sulfur fuels. The in-furnace desulfurization process, achieved by injecting limestone directly into the combustion chamber, significantly reduces SO₂ emissions. Combined with low-temperature combustion that minimizes NOx formation, our CFB boilers are an environmentally responsible solution that meets stringent national environmental and energy-saving standards.

Key Features & Advantages

• Broad Fuel Adaptability: Engineered to efficiently burn various low-grade and alternative fuels such as lignite, anthracite, coal gangue, and petroleum coke.
• High Combustion Efficiency: Achieves a fuel burnout rate exceeding 98% thanks to a high-efficiency separation system and optimized heat exchange design, ensuring maximum energy extraction.
• Wide Load Regulation Range: Offers a flexible operational range from 30% to 110% of its rated load, with a rapid load response capability of 5-10% per minute to meet dynamic power demands.
• Superior Environmental Performance: Utilizes low-temperature combustion to minimize NOx emissions and in-furnace limestone injection for desulfurization efficiency greater than 90%, resulting in clean flue gas with low pollutant concentrations.
• Minimized Erosion and Wear: A specially designed spiral cyclone separator achieves a separation efficiency of over 98% and returns fine particles (8-12μm) to the furnace, significantly reducing erosion on the boiler's heating surfaces.
• Reliable, Clog-Free Operation: The flow-type return device employs a non-powered mechanical valve, ensuring balanced material feeding and uniform distribution, which effectively prevents coking and agglomeration in the furnace.
• Rapid Investment Return: The boiler ash produced can be recycled and used as an additive in building materials, creating an additional revenue stream and contributing to a faster return on investment.

Detailed Technical Specifications