• High Alumina Brick for Blast Furnaces System 1
  • High Alumina Brick for Blast Furnaces System 2
  • High Alumina Brick for Blast Furnaces System 3
High Alumina Brick for Blast Furnaces

High Alumina Brick for Blast Furnaces

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项目
Item

ZGN-42

GN-42

Al2O3,%            不小于
                  Min

42

42

Fe2O3 %            不大于
                  Max

1.6

1.7

耐火度,℃         不低于 Refractoriness     min

1760

1760

荷重软化开始温度℃ 不低于
RUL                min

1450

1430

重烧线变化  %      1450℃x3h
P.L.C.          

0—-0.2

0—-0.2

显气孔率 %         不大于
A.P.               max℃

15

16

常温耐压温度       不小于
CCS                min

58.8

49.0

Properties of Products:Fire clay bricks for blast furnaces were mainly made form Yagquan chamotte,being high pressure pressed and sintered an high temperature.Main minerals compositions are mullite phases.These products were widely used in all parts of furnace lining for middie and small capacity blast furnaces because of their excellent physical/chemical properties temperature.


Q: Introduction of high alumina brick
Made from alumina or other raw materials of high alumina content; formed and calcined. High thermal stability, fire resistance above 1770. Slag resistance is good, used for masonry steel smelting furnace, glass furnace, cement rotary furnace lining.
Q: What is the difference between corundum and high alumina??
The difference between them lies in the content of alumina and the alumina refractory products with alumina content higher than 48%The content of Al2O3 is higher than 90%, which is called corundum brick.
Q: How much is one ton of high alumina refractory brick?
High alumina refractory brick according to the different content of AL2O3 is divided into grade, grade one and grade two, and grade three high aluminum brick, Zhengzhou Kang Hui refractories factory price in 800-1900 yuan / ton, stable quality, are exported to the domestic and foreign markets.
Q: Application characteristics of high alumina brick
Slag resistance. Due to the high alumina brick products in the three oxidation of two aluminum is neutral and high content, so this material products for acid-base slag corrosion resistance.
Q: How many cubic bricks does a high alumina brick have?
It is related to the content of aluminum in high alumina bricks.
Q: Density of high alumina bricks
The density of high alumina bricks is determined according to the price. The average density is between 2.3-2.5g/cm3. The higher the density, the higher the price, the higher the aluminum bricks are in the industry. More than 2.4 are required.
Q: What is the content of free silica in the refractory bricks of high alumina bricks?
Refractory powders are not rich in free silica in varying degrees
Q: Corundum, high alumina and fireclay refractory difference is what
They differ in that the alumina content is different, and the content is in order: corundum > high alumina > clay.
Q: How can the refractory brick blast furnace be pulverized and pulverized enough not to be taken away by the wind?
The gas will directly lead the dome combustion, in order to ensure good mixing, complete combustion of gas and air in a short time, the combustion capacity of short flame or flameless combustion burner, commonly used for semi jet short flame burner.
Q: What are the categories of bricks?
In a proper ratio of lime sand brick and quartz sand, sand or fine sand, the ground, Kazumi Wa, semi dry pressing and autoclaved curing and. The fly ash brick is made of fly ash as main raw material and mixed with cement material such as coal gangue, stone powder or clay. It is made up of batching, molding, drying and roasting. It can make full use of industrial waste residue and save fuel.

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