What is the purpose of a boiler refractory lining?

The purpose of a boiler refractory lining is primarily to protect against high temperatures and corrosion. Boilers operate at very high temperatures, and without adequate protection, the internal surfaces can degrade quickly, leading to potential failures and costly repairs. The refractory material is designed to withstand extreme heat and prevent damage to the underlying structure of the boiler.

Additionally, the refractory lining provides a barrier against corrosive substances that may be present in the combustion process, thereby extending the lifespan of the boiler and ensuring it operates safely and efficiently. The effectiveness of the refractory material in maintaining structural integrity and protecting against thermal shock is crucial for reliable boiler performance.