CONSTRUCTION PLAN FOR PRESSURE PARTS- SCHEDULE FOR 11MONTHS PART -IIn

Continued from last dispatch about erection plan for pressure Part of

super critical boilers

6^th month erection schedule

Furnace Rear wall Interim Header

Furnace  Rear wall  Intermediate Header

Furnace lower buck stays

Upper furnace key buck stays

Lower Furnace key buck stays

Low Temperature Re Heater inlet header Low Temperature Re Heater coils lower 7th month erection schedule Furnace Lower Spiral  Rear  wall panels Furnace guides Economiser outlet header ( after pre-assembly) Economiser outlet terminal tubes (after pre-assembly) Economiser miscellaneous items  supports, suspension etc 8th month erection schedule Circulation system for feed water Furnace loose tubes for connecting furnace corners , burner panel etc Pressure Parts attachment items Economiser coil upper assembly ( after pre- assembly Economiser intermediate plain tube ( after pre-assembly) Recirculation pump and its piping etc (coming under Trim piping group) 9th month erection schedule Furnace front ,rear and side (L & R) header lower after pre-assembly Furnace bottom support after pre-assembly Expansion movement attachment, seal boxes arrangement etc Super heater & Re heater spacer tubes Economiser inlet header ( after pre-assembly) Economiser coil assembly lower ,Economiser Feed pipe and link etc Economiser outlet link etc 10th and 11th month schedule LRSB ( long retractable soot blower) mounting on furnace wall de slagger mounting on furnace Temperature probe Root valves for vent and drains Boiler Recirculation Pump and piping Starting of trim piping line ( soot Blower piping) Attachment work like door ,peep hole etc ,Supports of economiser line etc Mixing vessel , CBD and IBD tank , piping , vent piping etc. Schedule mentioned above is tentative and hold good for matching supply . This can be  varied as per requirement of site as per availability of material. We have not mentioned the pre- fabrication of crown plates. This is a major activities and can be started with ceiling girder pre-assembly if material (alloy steel ) plates are  available. The pre-  fabrication involves welding , pre-heating and post heating also. For pressure parts erection we require 10 to 12  electrical winches  ( 2 nos 10 T , 4 to 6 nos 5T ,rest  can be 3T) with 10000 mtrs wire rope 12 mm 19mm will be required . The winches  are to be positioned side of the main column. The level of winches should be 1 M above the ground level so that winches remain unaffected due to accumulated water below. Large number of max puller ,chain pulley blocks will be required ( more than 100 numbers).  Welding of pressure parts start from zero dates of pressure parts at pre-assembly bed. We are not going to discuss about welding here as this is specialised subject but information required for construction will be shared. P.S If  you are looking to earn few legitimate extra money from the comfort of your home then please click on the link given below LINK 1 - PLEASE CLICK HERE  LINK 2 - PLEASE CLICK HERE