Industry Furnace

High strength alkali resistant brick

Alkali Proof Bricks usually used in the preheater, decomposition zone and 3-stage air pipe of the cement rotary kiln.



Product Details


Alkali Proof Bricks

 

Alkali-Resisting refractory brick is made of the silica, chamotte as raw material, adding certain amount of additive agent to change the microscopic structure of the products. When using, it will be react with the alkaline oxide, then formed one kind of the high viscosity glass phase, then covered on the surface of the brick, then block the furnace porosity to prevent the alkaline slag from seeped into, then cause the alkali and erosion -resisting purpose. High Strength alkaline brick is produced by adding the additive agent based on the common brick, to increase the cold compressing strength of the brick.   

 

Alkali Proof Bricks Feature

 

High erosion of alkaline slag-resisting,fine volume stability etc. Features.

 

Alkali Proof Bricks Application

 

Usually used in the preheater, decomposition zone and 3-stage air pipe of the cement rotary kiln.

 

Technical Dates of Alkali Proof Bricks

 

Item

 

Brand

Al2O3

(%)≥

SiO2 (%)≥

A.  P.

(%)≤

C.C.S.

(MPa)≥

R.U.L.@ 0.2MPa& T0.6(℃) ≥

T.    S.   R.

@1100℃&cool water   Times≥

T.   C.

(350℃)

(W/m*K)

Thermal Expans.

(900℃)%

Common type alkaline resistance refractory brick

HXRK-O

25-30

60-70

25

25

1350

10

1.3

0.7

High Strength alkaline resistance refractory brick

HXRK-H

25-30

60-70

20

60

1300

5

1.4

----

Arch type alkaline resistance refractory brick

HXRK-A

30-35

60-65

25

30

1400

10

1.3

-----

Insulation type alkaline resistance refractory brick

CB-20

25-30

60-67

≥30

15

1250

5

0.75

0.6

Cb-39

25-30

60-67

≥30

20

1250

---

0.75

---

 

*They are typical values in this table, not a basis for order.