In many steel plants, the torpedo cars (torpedo ladles) are no longer just transfer containers, but very important equipment used for liquid metal treatments such as de-sulfurization and de-siliconization. These practices entail higher temperatures, higher metal/slag turbulence due to reagent injection and greater chemical attack. Consequently, the service life of the alumina bricks or tar impregnated alumina bricks is dramatically reduced.
The Alfrax® TC line of alumina-carbon silicon carbide bricks was developed and has been supplied to customers in 18 countries. The Saint-Gobain concept enables balanced lining designs, as every area of the torpedo car has different requirements.
Saint-Gobain’s expertise in material science, process understanding and simulation through mathematical modeling, as well as thorough knowledge of the ironmaking processes, provides technical superiority when it comes to solving torpedo car refractory lining problems.
As a result, Saint-Gobain has provided more than 70 different TC refractory projects worldwide by Taylor-Made concept.
The table below indicates typical materials recommendation for torpedo ladles, especially in case of de-sulfurization treatment. The mouth is lined with BFA and Bauxite-based Alfrax®185 castable.