قرميد موليت الزركون

Description of Zircon Mullite Brick

Zircon Mullite Brick selected high quality mullite sand and zircon powder as its main raw material. Molded by high pressure and sintered by high temperature , the zircon-mullite brick has such advantages as high bulk density, high strength, good thermal shock resistance, high temperature erosion resistance and good slag resistance.

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Technique Data of Zircon Mullite Brick

البند		ZM-11	ZM-17	ZM-20 (Zirmul)	ZM-25 (Vista)	ZM-30
Chemical composition	Al2O3	≥72	≥70	≥59	≥57	≥47
	ZrO2	≥11	≥17	≥19.5	≥25.5	≥30
	SiO2	≤12	≤12	≤20	≤14.5	≤20
	Fe2O3	≤0.5	≤0.5	≤0.5	≤0.5	≤0.3
Apparent Porosity％		≤17	≤17	≤17	≤17	≤18
Bulk Density g/cm3		≥3.1	≥3.15	≥2.95	≥3.15	≥3.10
Cold Crushing Strength Mpa		≥90	≥90	≥100	≥120	≥100
0.1Mpa Refractoriness Under Load T0.6 ℃		≥1630	≥1650	≥1650	≥1650	≥1650
Permanent Linear Change On Reheating（%）1500℃X2h		±0.3	±0.3	±0.3	±0.3	±0.3
20-1000℃ Thermal Expansion % (x 10-6)		0-0.6	0-0.6	0-0.6	0-0.6	0-0.6
Thermal Conductivity (Average800℃) W / (M.K)		≤ 2.19	≤ 2.19	≤ 2.19	≤ 2.1	≤ 2.1
Pyrometric Cone Equivalent ℃ SK		31	31	31	31	31

Application of Zircon Mullite Brick

1. Glass industry: large glass kiln melting pool, heat storage chamber partition bricks; 2. Metallurgical industry: sliding bricks of steelmaking heating furnace, steel tapping platform bricks of stepped heating furnace; 3. Chemical industry: furnaces, waste incinerators, etc.