The challenge
Tipping, reclaiming and tripper conveyors in a clinker storage hall send fine abrasive dust up into the roof. It coats trusses, catwalks and drives, adds dead load and speeds up corrosion, while poor visibility increases the fall risk for maintenance crews.
The hall spans live stockpiles and reclaim hoppers, so cranes, boom lifts and scaffold towers could not be positioned without stopping production.
Scope of works
- Rope access team under an IRATA Level 3 supervisor, with dual-rope systems on primary steel nodes
- Mapping of the containment zones from the hall dust dispersion pattern
- Tensioned galvanized perimeter wire ropes with turnbuckles and forged shackles
- Safety netting to EN 1263-1/-2 combined with fine dust containment fabric, fully laced with no gaps
- Zero-drop tool tethering and exclusion zones over the live reclaim area
Outcome
Dust migration into the roof dropped sharply, keeping steel and overhead equipment cleaner and adding a secondary fall-arrest barrier for personnel, with zero LTI and no stoppage. Roof steel in the same hall was later assessed in our clinker storage truss NDT inspection.
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