Qingdao Songling Power Environmental Equipment Co., Ltd.

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Rotary Ash Cooler for CFB Boilers

SONGLING's rotary ash cooler accounts for over 70% market share for bed ash cooling in China, ranged from 50MW to 700MW CFB unit in coal fired power plants. 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

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Material Cooling System

Rotary ash cooler manufacturer

quality Cooler for CFBC boiler

Classification:

Material Cooling System

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The Rotary ash cooler is invented by Chinese (created in China). SONGLING has a number of patented technologies in design of rotary ash cooler.

SONGLING's rotary ash cooler accounts for over 70% market share for bed ash cooling in China, ranged from 50MW to 700MW CFB unit in coal fired power plants.

Several types of ash cooler with transferred technology from Europe and US, such as screw cooler and the fluidized type of ash cooler, were installed in China initially. As the frequent failures of those initial designs of ash cooler became apparent, now almost all those coolers have been replaced by rotary ash coolers.

Reference

Over 2000 coolers sold since 2002

1560 coolers in operation all over the world

Units in service over 20 years

Cooling capacity up to 40tph

Features

Excellent capacity control

Insensitive to Ash size and characteristics

Highly reliable and efficient cooling

Patented and reliable seal design

Patented roller support design

Patented water inlet station

Easy on-line check and maintenance

Very low auxiliary power consumption

Working Principle

Solids enter the rotating barrel from one side and are cooled by spiral and longitudinal fins inside the barrel. The spiral fins lit and convey the solids continuously to the barrel exit. There is no mechanical pushing force on the solids therefore there is little erosion on the fins and barrel. The solid flow increases with the barrel rotating speed and decreases to zero when the barrel stops rotating. Ash cooling capacity is automatically adjusted by barrel rotating speed. The rotating speed is controlled by a variable frequency motor which is DCS-controlled depending on bed pressure.

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. Rotary ash cooler for CFB boilers

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

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Rotary Drum Cooler for Steel Slags, Calcined Coke, Needle Coke, Graphite Anode Materials and other bulk materials

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