SHX Series Circulating Fluidized Bed (CFB) Boilers

Advanced SHX Series Circulating Fluidized Bed (CFB) Boilers

The SHX series of Circulating Fluidized Bed (CFB) boilers represents a cutting-edge solution in modern thermal engineering, designed for high efficiency, environmental compliance, and unparalleled fuel flexibility. These systems utilize low-temperature combustion technology, maintaining furnace temperatures in the optimal range of 850-950°C. This process significantly inhibits the formation of thermal Nitrogen Oxides (NOx), keeping emissions consistently low (around 200ppm), which meets and often exceeds stringent environmental regulations.

A key advantage of our CFB technology is its integrated in-furnace desulfurization capability. By directly introducing a limestone sorbent into the furnace, the boiler can achieve desulfurization efficiencies of over 90%. This eliminates the need for complex and expensive downstream Flue Gas Desulfurization (FGD) systems, resulting in a lower initial investment and reduced operational costs compared to traditional pulverized coal (PC) boilers. The technology's robust design ensures it is a leading choice for sustainable and economical energy production.

Key Features and Advantages

• Unmatched Fuel Flexibility: The SHX series is engineered to handle a wide spectrum of fuels with varying calorific values, including bituminous coal, anthracite, lean coal, lignite, coal gangue, coal slurry, and petroleum coke. This adaptability provides significant operational and economic advantages.
• Superior Combustion Efficiency: With a combustion efficiency rate exceeding 98%, these boilers ensure complete fuel burnout. This maximizes energy extraction and results in very low carbon content in the ash, making it suitable for secondary use.
• Wide Load Turndown Ratio: The system offers exceptional operational flexibility, capable of stable operation at loads as low as 25-30% of its maximum capacity. This allows for rapid response to fluctuating steam demands with minimal efficiency loss.
• Outstanding Environmental Performance: Integrated limestone injection achieves high desulfurization efficiency (>90%), while low-temperature combustion minimizes NOx formation, ensuring compliance with strict emission standards without additional equipment.
• Advanced and Reliable Design: The boiler features a hybrid water circulation system (natural circulation in the water wall, forced circulation for the main boiler), a specially designed wear-resistant cyclone separator for high separation efficiency, and an anti-clogging feed system for smooth operation.
• Automated and Stable Operation: A U-shaped return valve (loop seal) ensures stable material circulation between the furnace and the separator automatically, eliminating the need for manual intervention and enhancing operational reliability.
• High Return on Investment (ROI): The boiler ash, due to its low carbon content, can be repurposed as a valuable additive for construction materials, creating an additional revenue stream and improving the overall economic profile of the project.

Technical Specifications Table

The table below details the technical parameters for the full range of SHX series CFB boilers.