Unfired High Alumina Bricks for Cement Kilns

UNFIRE HIGH ALUMINA BRICKS FOR CEMENT KILNS

Goods Brand

P1

P2

PA1

PA2

Al2O3(%) min

75

75

77

77

Fe2O3(%) max

3.2

3.2

3.2

3.2

CaO(%) max

0.6

0.6

0.6

0.6

Cold Crushing strength (MPa)min

70

60

75

65

Refractriness under load 0.2 Mpa T0.6 ( ℃) min

1350

1300

1300

1250

Bulk density (g/cm3)

2.7

2.65

2.75

2.7

Refractriness ( ℃)

1780

Phosphste bonded high alumina bricks P and phosphate bonded anti-wear high alumina bricks TP use Yangquan bauxite as aggregate, added with phosphate acid and phosphate salt ,being pressed and sintered.The products anti-wearing and anti-spalling, as well as anti erosion of K,Na,Cl,and alkaline saltas.Mainly used for  preheater ,burning zone, hoops and coolers.