Pulp & Paper
Mill inspectors and reliability engineers keep recovery boilers, digesters, and bleach plant vessels on one defensible record, from BLRBAC and NBIC to EN 12952, at every mill in the fleet.
Where it runs
Every vessel keeps its thickness history, its fitness-for-service verdict, and its restart proof on one record.
Recovery boilers · digesters · bleach plant vessels · pressure piping
Where the record earns its keep
Smelt-side thinning, caustic cracking, and near-drum corrosion are documented failure modes. intelliSPEC keeps proof of where you stand on each one, on one record.
02 layers · scroll to stack
intelliNDT holds every UT and PAUT grid on waterwall and floor tubes against BLRBAC minimum wall, with corrosion rate and remaining life computed at capture.
intelliINTEGRITY screens continuous and batch digester shells for caustic cracking and thinning against API 579, so run, repair, or replace is a documented verdict.
intelliINSPECT runs visual inspections of ClO2 generators, washers, and towers on TAPPI-aligned checklists, offline where the plant kills signal, signed off at the point of work.
intelliPROJECTS tracks every scope item and hold point through the cold outage, so the boiler restarts on closed evidence under NBIC.
Restart on proof
Ten days, one boiler, every reading accountable, and the record closes behind the work.
The cold outage
Inspectors log thousands of UT points on floor and wall tubes with no signal inside the boiler. Each reading lands against the exact tube and elevation, and syncs the moment it reaches the deck.
Corrosion rates recompute against BLRBAC minimum wall as data lands. Tubes that need attention route to API 579 assessment, and the repair list is on the planner's desk before the morning meeting.
Every reading, weld map, and hold point sign-off closes into one restart file tied to the component. When the jurisdiction inspector or the insurer asks under NBIC, the answer is the record.
How it runs
Runs recovery boiler waterwall, floor, and superheater surveys on BLRBAC guidelines, with corrosion rates computed at capture.
intelliINTEGRITYScreens digester shells and ASME Section VIII vessels against API 579 before every run, repair, or replace call.
intelliINSPECTRuns TAPPI-aligned visual inspections of ClO2 generators, washers, and towers offline at the point of work.
intelliPROJTURNCloses outage scope, gates, and restart evidence, mapped to NBIC and EN 12952 for mills on either rule set.
Evaluation path
Pulp & Paper · next step
Bring one recovery boiler's thickness history and we will walk the record from first UT grid to restart sign-off.
Answers
Yes. Waterwall, floor tube, superheater, and economizer inspections are captured as structured records aligned to BLRBAC recovery boiler guidelines, with smelt-side findings held against the specific tube, elevation, and outage.
UT and PAUT grids are captured offline inside the boiler through intelliNDT, mapped to tube and elevation, with corrosion rate and remaining life computed against BLRBAC minimum wall as readings land.
Yes. Digester shell inspections, crack indications, and thickness data are held per vessel in intelliINTEGRITY and screened against API 579 fitness for service before a run, repair, or replace decision.
Mills run outage scope, gates, and closeout in intelliPROJECTS, with every recovery boiler and digester work item tied to its inspection evidence so restart approval is a review, not a reconstruction.
Yes. intelliINSPECT and intelliNDT capture inspections and thickness readings with no connectivity inside the waterwall or a digester, then sync with full history once the inspector reaches signal.
Yes. The same record maps to ASME Section I and VIII alongside EN 12952 water-tube boiler and EN 13445 pressure vessel rules, so a multi-region producer audits every mill on one thread.
In-service inspection records for boilers and pressure vessels follow NBIC NB-23 conventions, with each vessel's history, repairs, and sign-offs retrievable by component when the jurisdiction or insurer inspects.
