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Rotary Ash Cooler for CFB Boilers
- Category： Products Material Cooling Equipment
Summary:
The rotary ash cooler is invented by Chinese(Created in China). SONGLING has a number of patented technologies in Rotary ash cooler. SONGLING's rotary ash cooler account for over 70% market share in China, ranged from 50MW to 600MW CFB unit. Several types of ash coolers with transferred technology from Europe and US, such as screw coolers and the fluidized type of ash coolers, were installed in China initially. As the frequent failure of those initial designs of ash cooler in this service quickly became apparent, now those coolers are replaced by rotary ash coolers totally.
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Product description
The rotary ash cooler is invented by Chinese(Created in China). SONGLING has a number of patented technologies in Rotary ash cooler.
SONGLING's rotary ash cooler account for over 70% market share in China, ranged from 50MW to 600MW CFB unit.
Several types of ash coolers with transferred technology from Europe and US, such as screw coolers and the fluidized type of ash coolers, were installed in China initially. As the frequent failure of those initial designs of ash cooler in this service quickly became apparent, now those coolers are replaced by rotary ash coolers totally.
Reference
1560 coolers sold since 1999.
1180 coolers in operation.
Units in service over 14 years.
Cooling capacity up to 40tph.
Features
Very Low Auxiliary Power Consumption Insensitive to Ash Size and Characteristics Highly Reliable and Efficient Cooling Patented and Reliable Seal
Design
Patented Roller Support Design Patented Water Inlet Station Designed for On-line Check and Maintenance
Working Principle
Solids enter the Rotary 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 barrelexit.There is no mechanical pushing force on the solids and therefore there is little erosion on the fins and barrel.The solid flow increases with the barrel Rotary speed and decrease to zero when the barrel stops Rotary.
Excellent Capacity Control
Ash cooling capacity is automatically adjusted by barrel Rotary speed.The Rotary speed is controlled by a variable frequency motor which is DCS-controlled depending on bed pressure.
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