High alumina shaped refractory bricks

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Shanghai
Payment Terms:
TT OR LC
Min Order Qty:
1 m.t.
Supply Capability:
111 m.t./month

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Product Description:

Specifications

high alumina shaped refractory bricks,ISO 
High strength 
Good corrosion resist 
Good thermal conductivity 
Good performance

    High alumina shaped refractory bricks produced from he high qualiy bauxite,have passed the ISO international certified.

advantages

High strength;

Good performance in high temperature;

Good corrosion resistance; 

Good erosion resistance;

Good thermal shock resistance;

Good thermal conductivity; 

And so on.

applications

Being widely used for blast furnace,hot-blast furnace,cement furnace and glass furnace in chemical,metaland ceramic industries.

 

Items

Index

LZ80

LZ75

LZ65

LZ55

LZ48

Al2O3%  ≥

80

75

65

55

48

0.2Mpa RUL ≥

1530

1520

1500

1450

1420

PLC%

 

1500°,2h

+0.1~ -0.4


1450°,2h


+0.1~-0.4

AP%  ≤

22

23

23

22

22

Mpa CCS  ≥

55

50

45

40

35

 

Items

For blast furnace

For hot-blast furnace

GL-65

GL-55

GL-48

RL-65

RL-55

RL-48

Al2O3%≥

65

55

48

65

55

48

Fe2O3%≤

2.0


Refractoriness≥

180CN

178CN

176CN

1780°

1760°

1740°

0.2Mpa RUL °≥

1500

1480

1450

1500

1470

1420

PLC%

 

1500°,2h

0~ -0.2


0.1~-0.4


1450°, 2h


0~-0.2


0.1~-0.4

AP%≤

19

18

22

Mpa CCS≥

58.8

49.0

50

45

40


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Q:What are the characteristics of high alumina bricks?
A neutral refractory with an alumina content of more than 48%. Made from alumina or other raw materials of high alumina content; formed and calcined.
Q:What is the difference between fireclay bricks and high alumina refractory bricks?
High alumina brick is one of refractory materials. The main component of this kind of refractory brick is AL2O3.
Q:The difference between light high alumina brick and heavy aluminum brick
High aluminum brick is one of the ideal heat insulating material, with high strength, low thermal conductivity, good insulation performance, low price and other characteristics, has been widely used in ceramic tunnel kiln, roller kiln, shuttle kiln, kiln wall, it is also used in various heating furnace coking furnace of iron and steel industry and other thermal equipment heat treatment, lining material, and has broad market prospects.
Q:Is glass wool inorganic thermal insulation material?
Yes, glass wool belongs to one kind of glass fiber. It is a kind of man-made inorganic fiber. Therefore, in the field of thermal insulation materials classified as inorganic insulation materials.
Q:How can the refractory brick blast furnace be pulverized and pulverized enough not to be taken away by the wind?
Because the hot air outlet of the top burning hot blast furnace is high, the installation requirement of the hot air manifold is high, and the requirement of the strength of the pillar structure is higher, so the rectangular arrangement of the hot blast stove is arranged. The top burning hot blast stove is located on the furnace top because of burner and hot air valve,Therefore, operation, maintenance and installation all require mechanization and automation. Also, because these water cooled valves are mounted with a high elevation,Therefore, the demand for cooling water supply pressure should be improved accordingly, the use of large top burning hot blast stove, the key lies in the design of high-power high-efficiency short flame burner. The top combustion hot blast furnace absorbs the advantages of internal combustion and external combustion hot blast stoves, and overcomes some of their shortcomings,Its structure can meet the requirements of modern blast furnace for high temperature, high pressure and large scale development,Combustion capacity, while meeting production requirements, has been successfully reduced by many devices,
Q:Does the chimney have high acid resistance?
The acid resistant bricks used for chimney are usually made of custom-made trapezoidal acid proof bricks, and the physical and chemical indexes of acid resistant bricks need to be confirmed according to the chimney's actual emission. At this point, you can consult our kerei refractories.
Q:What is spalling resistant high alumina brick?
Using bauxite as main raw materials, the introduction of a small amount of ZrO2 (ZrO2 is due to phase transition, between monoclinic and tetragonal type can improve the thermal stability of the products), adding a certain amount of binder and additives, the particle size distribution control mud, forming and sintering of refractory products produced, called anti stripping high alumina brick.
Q:Density of high alumina bricks
High alumina brick by aluminum content is divided into four grades, three grade high alumina bricks content of not less than fifty-five percent, two grade high alumina bricks content of not less than 65, a high aluminum brick content of not less than 75, super high aluminium brick content above 85. As for the high aluminum brick shape, in addition to the standard high alumina brick, high alumina brick and general type, also called special high alumina brick, if the shape is very irregular it is usually called the specific type of high alumina brick, in short, to customized according to the specific use of kiln.
Q:How much is one ton / ton of high alumina refractory brick?
The price of high alumina refractory bricks is not equal, according to the quality index of GB2988-2012
Q:How are the grades of high alumina bricks differentiated?
In China, the content of Al2O3 in high alumina brick is usually divided into three categories: I, etc. - Al2O3 content > 75%; II, etc. - Al2O3 content is 60 to 75%; III and so on - Al2O3 content is 48 ~ 60%.

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