4/17/2015
Simplified Schematic of Baghouse
Penn State’s Reverse-Flow Baghouse (for the coal plant)
Flow of Flue Gas in Red
Bypass Damper
Drive
Outlet Damper
Reverse Air
Drive
Damper Drive
Access Door
To Stack
Bag Support
Stack
Figure 26
ID Fan
Reverse Air
Duct
Bag Spring
Outlet Duct
Damper
Figure 29
Bag
23.5 ft
Figure 25
Inlet Duct
Ductwork
Induced Draft Fans
Reverse Air
Fan
Bag Connector
Figure 27
Tube Sheet
Quad-Duct
Ash Hopper
Figure 28
Line to
Penthouse
Flow of Flue Gas and Reverse Air
Compartment Door – Bottom-of-the-Bag Level
Flow of Reverse Air in Green
Bypass Damper
Drive
Outlet Damper
Reverse Air
Drive
Damper Drive
Access Door
To Stack
Bag Support
ID Fan
Reverse Air
Duct
Bag Spring
Outlet Duct
Bag
Inlet Duct
Ductwork to
Reverse Air Duct
Reverse Air
Fan
Bag Connector
Tube Sheet
Reverse Air
Flow Direction
Ash Hopper
Flue Gas Flow Direction
Line to
Penthouse
Bags (they are in groups)
Top of the Compartment
Bags are suspended from springs attached to the grate.
1
4/17/2015
Bottom Attachment for Bags
Connectors for the Bags
Bags attached to Connectors
Baghouse Fly Ash Hopper
Front of Hopper
Door is open in preparation
for the annual inspection
Back of Hopper
Baghouse Dampers (basically valves)
This damper is located in the quad-ductwork. There are also two dampers associated
with each compartment – the for recirculation air, and the other for the reverse air.
2