High Alumina Bricks for Alumina Making Kilns

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Qingdao
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TT OR LC
Min Order Qty:
1 m.t.
Supply Capability:
10000 m.t./month

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High Alumina Bricks for Alumina Making Kilns

Composite of High Alumina Bricks for Alumina Making Kilns

High Alumina Bricks are classified according to alumina content ranging from 48% to 90%.

 

Main Features of High Alumina Bricks for Alumina Making Kilns

Low thermal conductivity   

Excellent acid and base slagging resistance

Excellent thermal shock resistance    

Excellent mechanical strength

Wear and erosion resistant

 

Application of High Alumina Bricks for Alumina Making Kilns

commonly used in blast furnace, hot blast furnace, the roof of electric furnace, teeming ladle, rotary kiln, regenerator, etc

 

High Alumina Bricks for Alumina Making Kilns Images

 High Alumina Bricks for Alumina Making Kilns

Specification of High Alumina Bricks for Alumina Making Kilns

HIGH ALUMINA BRICK---ALP85

Apparent Porosity (%)

 ≤18

Bulk Density (g/cm3)

 ≥2.85

Cold Crushing Strength (Mpa)

≥80

Modulus Of Rupture (Mpa)

 ≥20

Refractoriness Under Load (0.2 Mpa)(℃)

1450

Permanent Linear Change (%)

1500℃×3h -0.5 ~+0.5

Chemical Composition (%)

 

Al2O3

≥82

Fe2O3

≤1.5

P2O5

≤3

FAQ of High Alumina Bricks for Alumina Making Kilns

Q1:Are you a manufacture or trader?

A:Factory+trade(mainly factories, at the same time, we operates other related products).

Q2:Can we visit your factory?

A:Sure,welcome at any time, seeing is believing.

Q3:What's the MOQ of trial order?

A:No limit, We can offer the best suggestions and solutions according to your condition.

Q4:Which payment terms can you accept?

A:T/T,L/C are available for us.

Q5:Is your company accept customization?

A:We have own factory and excellent technical team, and we accept OEM service.

 Q6:How about your company's certification?

A:ISO9001 and Test Report, also we could apply other necessary certification.

 

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Q:Is there a big difference between two high alumina brick and one high alumina brick?
According to my experience, two kinds of high alumina bricks from the index, there is a big difference between the content of AL2O3, a high aluminum brick in 75%, two grade high alumina bricks in 65%, so the content is not the same, also decided that the use of temperature difference, the difference is very big.
Q:What's the weight of the refractory bricks?
Fireclay refractory bricks: 3.4kg-3.8kg - according to the quality of raw materials, prices ranging from 1 yuan to 2.7 yuan, high alumina refractory brick: three, high aluminum in 3.9kg or so. Ordinary T-3 firebrick weight calculation method: 230*114*65*2.2/2.1.
Q:How can the refractory brick blast furnace be pulverized and pulverized enough not to be taken away by the wind?
Top burning type hot blast stoveIt means that the burner is installed on the top of the hot blast furnace of the iron making equipment, and it does not need a special combustion chamber in the vault space. It is also called a non combustion chamber type hot blast stove.
Q:What materials are used for roof insulation?
The other one is inorganic insulation materials, such as Portland, rare earth insulation, the thickness should be 5 cm or more, up to the high cost of auxiliary materials of construction, to reinforce, new inorganic insulation material, the material thickness, on the line of 2-3 cm, direct smear on the top of the house, without auxiliary material, than the price of wool, high aluminum silicate cotton.
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:How to reduce the harm caused by two times mullite in high alumina refractory material
Two times mullite refers to the content of aluminum is about 70%, in high temperature sintering, the expansion coefficient is large, the thermal expansion rate is high.
Q:The difference between light high alumina brick and heavy aluminum brick
Lightweight high alumina brick, also called high alumina insulation brick. Alumina content of 48% or more, mainly from mullite and glass phase or corundum composition of lightweight refractory. Volume density 0.4 - 1.35g/cm3. Porosity 66% - 73%, compressive strength 1 - 8MPa. Better thermal shock resistance. Usually, a high alumina clinker is added with a small amount of clay. After grinding, it is poured and shaped in the form of slurry by gas generation or foam method, and it is fired at 1300 - 1500 DEG C. Sometimes industrial alumina can be used instead of some bauxite clinker. Used for lining and insulation of masonry kilns, as well as for areas where there is no strong, high temperature molten material erosion and erosion. When contacting the flame directly, the surface contact temperature shall not be higher than 1350 degrees centigrade.
Q:Can high alumina brick resist carburizing?
It is heavy brick mullite brick, brick to do the heavy weight to more than 2.4 manufacturers can achieve a few feeling
Q:What kinds of minerals are there in the five major categories of ore crystal chemistry?
Halide. A few species, about 120 species, accounting for only 0.1% of the earth's crust. Most of them formed in the surface conditions, forming a salt mineral, containing less pigment ions, light color, low hardness, generally less than 3.5. Common mineral halite (NaCl), potassium (KCl), fluorite (CaF2) etc..
Q:Use of high alumina refractory bricks?
Because of the high Al2O3 high aluminum products, low impurity content, the formation of fusible vitreous body less so than the clay brick high load softening temperature, but because mullite crystallization has not formed the network organization, so the load softening temperature is not high silica brick.

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