Pulp & Paper

Paper mill processes involve high temperature, high pressure and corrosive materials in the conversion of wood to pulp to paper. Operating safely, avoiding unplanned shut-downs, conducting planned shut-downs efficiently and reducing operating costs are key issues facing mill management.

Planned outages are the focal point of Acuren’s work in the pulp & paper industry. Our project managers assist in developing inspection plans, planning project scope, and are familiar in dealing with the complexities of running large jobs on tight timetables. Our staff includes specialists with long time experience in examining recovery boilers, digesters, paper machinery, and other critical tanks, vessels and piping systems. They are experienced integrating NDT crews with plant maintenance operations.

Our services include mechanical integrity (compliance to PSM), Risk Based Inspection (RBI), support of owner-user integrity management system, project and turn around NDT supervision (i.e., administration, safety/quality, planning/scheduling), and audit services.

We actively participate in industry associations such as BLRBAC, TAPPI and NACE to remain current in industry thinking and practices. Our BEAM (Boiler Examination and Analysis Module) software is a widely used boiler corrosion reporting tool. Additionally, all the above services can be provided to support engineering and capital projects in ensuring compliance to code and regulatory requirements which include visual inspections (AWS – CWI, API – 510, 570, and 653), NDT project coordination, regulatory compliance, safety/quality, and audit services.

 

 

Plant AreaApplicationsIssuesCode StandardsAdvanced MethodsNDE/NDT
Recovery Boiler/Boiler TubesBoiler tube wear surveyCorrosion/erosion degrades boiler tubes over time.
BEAM software provides rates, trending, forecasting tools related to inspection data
API-510, 570, 653
ASME Section 8, B31.1, 31.3
Process Safety Management Guidelines
BLRBAC Best Practices
TAPPI Recommended Guidelines
BEAM
UT Thickness
Powerbox
Accuscan
Weld inspectionBoiler tube weld repairASME 1 or VIIIUT Shearwave
Phased Array
Digital Radiography
Rope access to facilitate boiler inspectionRope access minimizes scaffolding to roof and allows lower cost inspections to occur in-between expanded inspections.Rope Access
Boiler condition assessmentFull boiler condition assessment and remaining boiler useful life assessmentEC/PT on composite tubes
Generator tube inspectionRapid scanning of tube wall thickness to identify thinned tubesIRIS
Accuscan
DigestersDigester Corrosion SurveyService induced cracking, corrosion or erosion of welds and general wall thinning.VTUT,MT,PT
Paper MillCondition monitoring on rotating componentsVibration analysis on rotating components signals equipment failure
Shaft alignment reduces stress on coupling bearings and structure
Frame inspection and structural re-engineering
UT
Dryer roll, shell, heads and bolting inspectionSpider Shell ScannerUT,MT,PT
Above Ground Storage TanksInspection and testing methods to provide accurate condition assessments. This includes compiling static design data, evaluating process and inspection history, knowledge of corrosion/erosion mechanisms and general degradation characteristics of the tank.API-653MFL Floor ScanningUT
Balance of PlantInspection of piping systemsTechniques to inspect corrosion under insulation avoid the cost of stripping/replacing insulationAPI-570RTR, CR
VT
ID-FD fan inspectionVTMT,PT

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