Refractory Bricks
Refractory Ball

Refractory Ball

Refractory ball owns the characters of high mechanical strength, high chemical stability, and excellent heat endurance.

Refractory ball owns the characters of high mechanical strength, high chemical stability, and excellent heat endurance. So, it has a long useful life, not react with chemicals in the reactor, and can resist the high temperature not over 1900 celcius degree. Refractory ball play the role to support, cover and protect catalyst during various processes. With its application, distribution of vapor-liquid is distributed more evenly.
It can be widely applied in high-low temperature conversion stove, reborner, hydrogenation reformer, desulphurizer and methane reformer in fertilizer plant playing the rold of to support, cover and protect catalyst. It's also applied in hot blast stove and heating exchange equipment in the steel and iron industry.  

 

Mullite

Mg-Al

High alumina low creep

Mg-Al-Cr

Mg-Cr

Silica

65

75

Al2O3%≥

75

5-10

65

75

5-10

Fe2O3%≤

1.5

1.5

2.0

MgO%≥

91

91

80

Cr2O3%≥

2

2

SiO2%≥

96

AP%≤

22

18

22

21

20

20

21

BD g/cm3≥

2.4

2.85

2.6

2.65

2.8

2.6

CCS≥

16000

18000

15000

15000

15000

20000

15000

Refractoriess≥

1790

1790

1790

1790

1790

1790

1710

PLC%

0.1-0.4

0.1-0.4

0.1-0.4

RUL ≥

1550

1550

1500

1520

1520

1520

1670

Thermal shock resistance≥

40

18

150

15

Creep rate

145050h0.2Mpa<1.0

145050h0.2Mpa<1.0

159050h0.2Mpa<0.5

 

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