CFB Boiler Bottom Ash Handling System
• Key Equipment: Ash Cooler, bucket conveyor, bucket elevator, bottom ash silo and unload system.
Typical configuration
Three type cooler:
1. Traditional Rotary Ash Cooler
2. Tube Ash Cooler (patent)
2-stage Ash Cooler
Chute Type Ash Cooler + Scale Bucket Conveyor
Capacity: upto 600MW, 30t/h
Cooling Temp: 900℃-150℃， 2-stage cooling
1st Stage: 900℃-300℃, Chute Type Ash Cooler
2nd Stage: 300℃-150℃, Scale Bucket Conveyor
3. Double Casing Cooler (patent)
Comparison of the three type cooler
Bucket conveyor(Itself cleaning device is patent):
The bucket conveyor is a kind of equipment used to convey materials in a hopper which travels along a level or inclined rail, it is widely used in some dry materials which have high temperature and large capacity, large block with sharp edge and strong abrasive.
Application Range:
Material density: 0.5 ~ 3.0t/m3;
Maximum capacity: 120m3/h
Max transmission angle: 60 °;
Material temperature: ≤ 350 ℃;
Particle size: ≤ 200mm;
Water content: ≤ 15%;
Transmission distance: ≤ 120m
Bucket elevator(Patent)
This patent bucket elevator is different from the traditional bucket elevator, the inlet and outlet of the material are 90°, the material unload point at the center of top of bucket elevator, this method will solve the problem of material reflux thoroughly, it can not only be used to elevate normal powdery and granular materials, but also applies to moist 、caking、highly abrasive and bad flowing materials。
Application Range:
Material density: 0.5 ~ 3.0t/m3;
Maximum capacity: 120m3/h
Max transmission angle: 90 °;
Material temperature: ≤ 350 ℃;
Particle size: ≤ 80mm;
Water content: ≤ 15%;
Transmission distance: ≤ 50m
