Research progress of lightweight refractories for smelting of advanced steel
Refractories,as the high-temperature furnace lining for the smelting of iron and steel,play a crucial role in improving thermal efficiency and reducing energy consumption in the industry.In recent years,the research on lightweight refractories for the smelting of advanced steel has been paid extensive attention.Thus,the research progress of lightweight refractories for the smelting of advanced steel based on the types of lightweight refractories were reviewed,in order to guide the design and development of long-lived lightweight refractories and promote the energy conservation and emission reduction in high-temperature furnaces for the smelting of advanced steel.The lightweight of refractories can be achieved by the introduction of lightweight aggregates or the design of a density gradient structure.Lightweight refractories have low thermal conductivity and bulk density and good thermal insulation properties,which can be directly used as working linings.The preparation technology,types,and damage mechanism of lightweight refractories still need to be further studied.
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