The challenge
Moisture had hydrated cement inside silo No. 3, forming dense wall caking, bridges and rat-holes along the shell and discharge cone.
Discharge was restricted, the shell was unevenly loaded and entry carried serious engulfment and dust hazards.
Scope of works
- Full lockout/tagout of conveyors, blowers and discharge gates
- Continuous multi-gas monitoring and forced ventilation
- Dual-rope rope access from the headframe with manhole edge protection
- Top-down mechanical descaling with non-percussive tools
- Controlled discharge into transport units
Outcome
Silo No. 3 was cleared and ready for refilling, with the plant working normally. See the same work in Guadeloupe and our silo cleaning services.
Photo record
