Can dry ice clean caked product residue from a silo or storage vessel?
Yes — confined-space procedures apply with CO₂ atmosphere monitoring.
Verdict
Yes
Confined-space procedures apply; atmospheric monitoring mandatory.
The detailed answer
Silo and vessel cleaning is a confined-space dry ice job. Procedures: permit-to-work, CO₂ atmosphere monitoring, forced ventilation, buddy system, atmospheric metering. Pellets remove caked product (flour, sugar, malt, bauxite, alumina, lithium concentrate) from walls, agitators and outlets without abrasive damage to the vessel. Particularly valuable in food-grade silos where chemical cleaning would require validation. Job time varies wildly — small silos in 4-8 hours, large industrial silos over multiple shifts.
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