ScopeTop separator screen body and screw
1 · Equipment Overview
| Standard overhaul sequence: high-pressure wash → blasting → measurement → repair → PT → final inspection. |
2 · Maintenance Process
HP washRemove black liquor, fibre and fouling with high-pressure equipment.
BlastingRemove rust and old coating by sandblasting.
Measurement & roundnessLaser survey of screen-body dimensions; hydraulic tooling to correct roundness.
Support-ring repairStraighten / repair bent support rings; restore geometry.
Weld repairTIG build-up of screw facing, shaft and sleeve fitting surfaces.
PTDye-penetrant check of welds and repaired zones.
Final inspection & packingFinal inspection passed; protective coating; packed for shipment.
3 · Key Process Photos
4 · Acceptance & Handover
Support rings restored to original geometry; screw build-up repaired with PT clear of critical defects; screen-body roundness corrected by hydraulic tooling; final inspection and packing photos confirmed — ready for shipment.