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Clay Brick of Hot Blast Stove

Clay Brick of Hot Blast Stove is a clay brick with good thermal shock resistance for hot blast stove, which is divided into big wall brick and lattice brick. On the basis of clay brick, it is produced by adding refractory with excellent thermal shock resistance, which not only has good thermal shock stability, but also has air erosion and erosion resistance.

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Description

1.Description : the product is made of high-quality refractories with low Fe2O3 content and impurity content and refractory materials with excellent thermal shock resistance, which are fired at high temperature. The load softening temperature of the product is much higher than that of refractory bricks with the same Al2O3 content. The thermal shock resistance of the product is very good, which fully meets the requirements of the low and medium temperature pressure section of the hot blast furnace. The product is divided into checker bricks and wall bricks, which are built in the large wall and regenerator of the low and medium temperature pressure section of the hot blast furnace, with good effect

2.Performance index of Clay Brick of Hot Blast Stove

ITEM	HS-42A	HS-42B	HS-48
Al2O3 %	≥42	≥42	≥48
Fe2O3 %	≤1.8	≤1.8	≤1.8
Refractoriness ℃	＞1750	＞1760	＞1770
Density g/cm3	≥2.15	≥2.18	≥2.35
Porosity %	≤23	≤23	≤21
Compressive strength Mpa	≥35	≥40	≥50
Refractoriness under load ℃	≥1400	≥1500	≥1520
Line change rate 1350℃*2h， %	0 ~ -0.3	0 ~ -0.3	0~ -0.3
Thermal shock stability 1100℃ water cooling,times	≥20	≥30	≥40