Rotary ash cooler,Its material is 1Cr18Ni9Ti and Q235,for the CFB
boiler:
Drum Type Ash Cooler:
General Introduction:
The drum type ash cooler is a drum type heat exchanger used for
cooling the bulk material, the structure and heat exchanging
process of which are different from that of the usual heat
exchanger. For the drum type ash cooler, three methods of heat
transfer as thermal radiation, conduction, and convection are
working in the same time, and primary cooling medium is water and
the secondary is air. It is a high efficiency ash cooling
equipment, which is designed to meet the requirement of the
large-volume CFB boiler. The drum ash cooler consists of drum, ash
filling device, ash discharge device, drive device, transmission
device, cooling water system and electric control device, which is
specifically used for the hot ash cooling of CFB boiler
Main Technical Parameter:
The model of ash cooler is GTL (S) D - n ×L (left or right), among
which, D stands for drum diameter (mm), including 700mm, 800mm,
1000mm, 1200mm, 1500mm, 1800mm, and 2000 mm; n stands for the
capacity (t/h); L stands for the distance between inlet and outlet
(mm). According to the different installation positions, the ash
cooler can be classified as left type and right type, facing the
ash cooler outlet, it is left type if the motor on the left and is
right type if the motor on the right. The length of the ash cooler
is not fixed, which is usually related with the capacity, ash
temperature, and the rated distance between the inlet and outlet.
The output of ash cooler is 0 - 80t/h. And the cooling temperature
is 80 - 150℃
Installation Instruction:
Place the ash cooler on the flat ground with bearing capacity
higher than 6000Pa, (anchor bolt is not necessary), then place
embedded iron on the ground for the four corners of the ash cooler
stand, and weld the locating iron on the embedded iron to prevent
moving when the ash cooler is set on the right place
When the foundation is higher than the ground, pour two
longitudinal or four transverse plain concrete strip foundations
with strength more than C30 on the ground. When the left type and
right type ash cooler are arranged next to each other, for the
convenient maintenance and repair, the drive motor should be
arranged at the outer side, which means put the left type ash
cooler at the left side, and the right type at the right side.
GTL series single drum ash cooler
Advantages:
1,Large output, which can reach 80t/h at the maximum
2,Large internal space, which is convenient for inspection and easy
for maintenance with a low cost.
3, Rotary joint with external bearing for water system,High
pressure resistance, no leaking, and long service life
4, High-temperature resistance compensator
High temperature resistance, and the temperature≮1200℃
Large compensation, which can satisfy the X and Y direction
expansion of 300MW, and 600MW CFB boiler
Good wearing resistance, especially suitable for high temperature
ash/slag condition, and the service life is no shorter than 2 years
Convenient to install, and easy to maintain.
