Page 109 - Industrial Process Plant Construction Estimating and Man Hour Analysis

82 Industrial process plant construction estimating and man-hour analysis

5.5 Recovery boiler estimate data
5.5.1 Erect drum, generating bank, integral economizers multiple
header type sheet 1

Description MH Unit
Drums include straps and/or U-bolts
100,001–200,000lbs 4.60 Ton
200,001–300,000lbs 3.80 Ton
Steam drum trim piping 260.00 LOT
Drum internals—remove and reinstall 136.00 Boiler
Generating bank
Generating tube sections and headers—unload and handle 10.00 Ton
Set rigging for hoisting assemblies 60.00 Boiler
Hoist into place 1.50 Ton
Weld tubes to header stubs—2-1/2 diameter, TIG no PWHT 2.40 EA
00
Fit and weld filler bar at tube welds 1.00 Space
Integral economizers multiple header type
Economizer tube sections and headers—unload and handle 10.00 Ton
Set rigging for hoisting assemblies 60.00 Boiler
Hoist into place 1.50 Ton
Weld tubes to header stubs—2-1/2 diameter, TIG no PWHT 2.40 EA
00
Fit and weld filler bar at tube welds 1.00 Space
Baffles—place and weld including clips 60.00 Ton
Vibration bars 65.00 Ton
Buckstays 40.00 Ton
Casing and hoppers 55.00 Ton
Doors 55.00 Ton

5.5.2 Erect headers and panels, furnace wall and roof tubes, weld
tubes and panels sheet 2

Description MH Unit
Erect headers and wall panels, fit and weld waterwall panels
Boiler sidewall, furnace front wall, roof, sidewall and rear wall tubes
Wall panels—shop assembled with headers 10.00 Ton
Fit and weld filler joining membrane panels 0.70 LF
Headers—loose 15.00 Ton
Wall panels—shop assembled without headers 10.00 Ton
Weld tubes to header stubs—2-1/2 diameter, TIG no PWHT 2.40 EA
00
Headers—loose 30.00 Ton
Tubes—loose, furnace including screen 30.00 Ton
Weld tubes to header stubs—3 diameter, TIG no PWHT 3.00 EA
00
Furnace rear wall tubes (wall panel—membrane) 12.00 Ton
Furnace rear wall tubes (loose) 30.00 Ton
Fit and weld filler bar at tube welds 1.00 Space