Page 6 - PAX Brochure_Classical
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PAX
Proven Pneumatic Technology for Dry Bottom Ash
System Operation
A small portion of the FD fan air (<1%) is introduced in the lower portion of the PAX hopper
enclosure, sometimes beneath the screw feeder and crusher, depending on the configuration
where it passes up through the grid doors. This air promotes complete combustion of ash par-
ticles in the hopper while cooling the system components to a lower operating temperature.
As ash collects in the hopper, optional air nozzles at the corners of each hopper section can
direct additional air into the hopper at preset intervals. Air from the nozzles move the fine ash
from the corners to the middle of the hopper so the ash can flow freely into the crusher.
STORE STORE DISCHARGE
1600°F
200°F
110°F
90°F
Temperature
Profile °F
Storing Ash
