Page 164 - Industrial Process Plant Construction Estimating and Man Hour Analysis

140 Industrial process plant construction estimating and man-hour analysis

8.1.7 Equipment descriptions—Electrostatic precipitator sheet 2

Penthouse
Preassemble hot roof sections
Install hot roof sections
Install lower alignment frames to discharge electrodes
Suspend high voltage frames from support insulators
Complete welding of penthouse walls and hot roof
Weld out rapper sleeves (installed below)

ESP Roof
Preassemble cold roof sections
Insulate underside of cold roof
Set cold roof sections and expansion joints
Install roof handrail
Install and weld out rapper sleeves
Weld out cold roof
Install rapper shafts, rapper adjusting studs, and rappers
Align rappers
Set TR sets
Install duct support steel
Install inlet ductwork on the support steel including the louver dampers
Install seal air system platform on duct support steel
Set seal air fan and heater
Support structure
Sliding plates and cap plates

8.1.8 Equipment descriptions—Structural steel and boiler casing

Structural Steel
Erect Boiler Structural Steel (Stairs, Platforms, Grating & Handrails)
Main steel
Platform framing
Grating
Handrail
Erect Penthouse Steel
Install Platform, Grating & Handrail
Platform framing
Grating
Handrail
Install Stair Nos. 1 and 2
Structural steel
Platform framing
Grating
Handrail
Stair treads
Erect Casing -Generating Bank, Boiler and Penthouse