What can be a consequence of ignoring visible damage in refractory linings?

Ignoring visible damage in refractory linings can lead to structural failure of the vessel because the refractory material is crucial for protecting the underlying metal from extreme temperatures and corrosive environments. When the lining suffers visible damage, it compromises its integrity, potentially allowing heat and corrosive substances to directly impact the vessel's shell. This degradation can result in failure modes such as cracking, leaking, or even a complete breakdown of the vessel structure, which not only poses a safety risk but can also lead to costly shutdowns and repairs. Therefore, addressing visible damage promptly is essential to maintain the structural integrity and operational safety of pressure vessels in which these linings are utilized.