Steelmaking industries, like other process industries, generally benefit from electrical/mechanical thermography inspections. Infrared inspection of various refractory lined vessels is a very cost effective process.
The condition of refractory lining is extremely critical to vessel integrity and the safety of various high temperature applications such as boilers, furnaces, dryers, process vessels, rotating kilns, off gas ducting and cyclones.Some of the anomalies that can be detected are refractory wear, refractory loss, blockages and sintering. Using infrared thermography to monitor the integrity of these vessels can save a plant millions of dollars in downtime and, most importantly, protect workers from serious injuries should a break out occur.
In a process furnace inspection, infrared is used to inspect heater tubes for carbon build-up. This effect of this buildup is known as coking, which eventually leads to higher furnace firing rates and increases tube temperature, resulting in reduced tube life.