Supplier From
Zhengzhou,
Henan,
China
Supplier From
Zhengzhou,
Henan,
China
Resistant to the ball of fire
Refractory ball is a kind of refractory material with a very wide range of applications. Refractory ceramic ball is made of industrial alumina and refractory kaolin as the main raw material, which is made by scientific formula, shaping and high temperature sintering.
Refractory ball has high mechanical strength, long service cycle, high temperature resistance, oxidation resistance, wear resistance, strong acid and alkali chemical corrosion, excellent resistance to quench heat and very low chemical activity.
Fire resistant classification
1, according to the aluminum content
Ordinary refractory ball: suitable for converter sulfuric acid and the chemical fertilizer industry and transform furnace
High aluminum refractory ball: high aluminum resistance to the fire, the application of urea, steel and other industries, such as hot blast furnace, heating transformation furnace and other equipment.
2, by type
Refractory ball: aluminum content 45-90, 10-70 silicon content, iron content is less than 1.
Corundum refractory ball: aluminum content 90-98, 0.5-5.0 silicon content, iron content is less than 0.5.
Low silicon aluminum refractory ball: the contents of 90-98, silicon content is less than 0.3, iron content is less than 1.
Physical and chemical index
project
Al2O3 (%); or
Sixty-five
Seventy
Seventy-five
Eighty-five
Volume density (g/cm32)
Two point two
Two point three
Two point five
Two point eight
Bulk density (M3 Kg/)
1550 ~ 1600
1600 ~ 1650
1600 ~ 1750
1650 ~ 1700
Specific surface area (M3 m2/)
200 ~ 220
The coefficient of thermal expansion (3) (x = 10-6/ C);
Six
Six point five
Seven
Eight
Resistant ball use
Common refractory ball used in sulfuric acid and fertilizer industry of high and low temperature shift furnace, reformer, hydrogenation, desulfurization tank and methanation furnace and dispersed liquid, and supporting, covering and protecting catalyst.
High aluminum resistance ball is suitable for hot blast stove, heating transformation furnace and other equipment in urea, steel and other industries.
