Rotary Ash Cooler for CFB Boilers

Engineered specifically for Circulating Fluidized Bed (CFB) boilers in coal-fired power plants, our Rotary Ash Cooler is the proven solution for efficient and reliable bed ash extraction and cooling. Born from Chinese innovation and backed by SONGLING's proprietary patented technologies, it effectively addresses the shortcomings of previous imported designs.

This robust cooler handles capacities from 50MW to 700MW units, ensuring optimal boiler pressure and temperature control by continuously extracting high-temperature ash. Its rotating drum mechanism, with internal water-cooled channels, ensures thorough heat recovery through indirect cooling, significantly improving plant thermal efficiency. The cooled, manageable ash is then ready for safe, dust-free handling and transport.

Unlike problematic screw or fluidized bed coolers prone to jamming, abrasion, and failure, our Rotary Ash Cooler is renowned for its exceptional durability and minimal maintenance. Its simple, robust design guarantees continuous operation, drastically reducing downtime and replacement costs. This unparalleled reliability is why it holds over 70% market share in China and has become the industry standard for replacing obsolete cooler technologies, ensuring maximum availability and profitability for your power plant.

Keywords: Ash cooler/Slag cooler/Drum cooler/Rotary drum cooler/Bed ash cooler/Rotary bed ash cooler/Water cooled ash cooler/CFBC boiler ash cooler

A rotary ash cooler for CFB boilers is a critical auxiliary device used to efficiently cool high-temperature ash discharged from the combustion process. It is widely applied in circulating fluidized bed boiler systems in power plants and industrial facilities, where continuous and reliable ash handling is essential. By reducing ash temperature before further transport or disposal, the equipment helps protect downstream systems and improve overall operational safety.

The rotary ash cooler operates with a rotating cylindrical drum that allows hot ash to move gradually through the cooling chamber. During this process, heat is transferred indirectly to a cooling medium such as air or water, ensuring stable and uniform cooling without direct contact. This design minimizes thermal stress and prevents ash accumulation or blockage.

The equipment is known for its high efficiency, durability, and ability to handle large volumes of abrasive, high-temperature materials. Its robust construction, often using heat-resistant and wear-resistant materials, ensures long service life and low maintenance requirements. Overall, it enhances energy efficiency, operational stability, and environmental performance in CFB boiler systems.