Clay insulation bricks, also known as clay insulation bricks, are insulation refractory products made from refractory clay as the main raw material with an Al ₂ O Å content of 30%~48%. Its production process adopts burn out addition method and foam method. Using fire-resistant clay, floating beads, and fire-resistant clay clinker as raw materials, adding binders and sawdust, after batching, mixing, forming, drying, and firing, a volume density of 0.3~1.3g/cm is obtained ³ Product. The production of clay based insulation bricks accounts for more than half of the total production of insulation refractory bricks.

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