It can be called baffle bricks,fire bricks or block bricks, is generally installed behind the burner of a regenerative heating furnace to support and reinforce ceramic thermal storage materials.

It has the characteristics of good thermal shock stability, high softening point, strong resistance to chemical erosion, and good heat resistance and impact resistance, which can ensure the excellent performance and service life of the thermal storage body during the use, significantly reduce the shutdown time of steel plants, and lower production costs. The external dimensions and structure can be produced according to the requirements of the user's drawings.

It has different materials such as mullite, corundum mullite, and fused corundum. Choosing situable material can reduce the shutdown time of steel mills, and lower production costs.