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Alumina Bauxite Aggregate

Brand : SMN
Product origin : Henan, China
Delivery time : within 15-20 days
Supply capacity : 3000MT per month
MOQ : 20MT

1.Defination of  Alumina Bauxite Aggregate:

Alumina bauxite aggregate, also known as high alumina sand, is a high-quality refractory material produced by the process of selecting, high-temperature roasting, crushing, and sub-dividing of bauxite ore materials. Alumina bauxite aggregate has the characteristics of high aluminum content, low iron content, high hardness, small thermal expansion coefficient, good  insulation and stable thermo chemical properties.

Alumina Bauxite Aggregate,Calcined Bauxite,Raw Bauxite

2.Advantages of Alumina Bauxite Aggregate:

As the raw material of refractory, high alumina aggregate is made through a series of manufacturing process. With the high amount of Al2O3, it possesses with high temperature and strong strength. High alumina aggregate is widely used in refractory material, refractory concrete and casting field.


3.Specifications of Bauxite:

Product Name

Al2O3%

Si %

Fe %

K %

Na %

Density

Water absorption

High aluminum  aggregate 90

>90

3±1




3.15

<5

High aluminum  aggregate 88

≧88

6±1

1.5±0.5

<0.3

<0.05

3.25

<4

High aluminum  aggregate 85

≧85

8±1

1.5±0.5

<0.3

<0.05

3.2

<5

High aluminum  aggregate 83

≧85

9±1

1.6±0.5

<0.3

<0.05

3.15

<6

High aluminum  aggregate 80

≧80

12±1

1.5±0.5

<0.3

<0.05

2.9

<7


4.Aluminum Bauxite Aggregate Processing:

Alumina Bauxite Aggregate,Calcined Bauxite,Raw Bauxite

Bauxite crushing equipment is the roller machine & Barmac: It is mainly used for processing bauxite pellets. The standard specifications are 0-1mm, 1-3mm 3-5mm, 5-8mm, 0-30mm etc.; The size can be adjusted as customer's request.

The shape of the particles processed by the roller machine is triangular-shaped sheet; the bonding property is suitable for the shaped refractory material.

The bauxite processed by Barmac is a round aggregate with good fluidity and is suitable for self-flowing castables. 


5. Applications of Alumina Bauxite Aggregate:


Refining aluminum industry

Bauxite clinker is used in national defense, aviation, automobile, electrical appliances, chemical        industry, daily necessities etc.

Precision casting

Bauxite clinker can be processed into fine powder and made into investment casting,which is used in military project,spaceflight, telecommunications, instrumentation, machinery and medical device department.

Refractory products

The refractoriness of high bauxite clinker is up to 1780℃. It has strong chemical stability and good  physical properties.

Aluminosilicate refractory fiber

1) It has the advantages of light weight, high temperature resistance, good thermal stability,  low        thermal conductivity, small heat capacity and mechanical vibration resistance.

2) It is used in steel, non-ferrous metallurgy, electronics, petroleum, chemical, aerospace, atomic     energy, national defense and other industries.

3) By putting high-alumina clinker into high-temperature electric arc furnace with melting temperature of about 2000-2200 C, and  melting at high temperature, and blowing and cooling by high-pressure   and high-speed air or steam ,white “cotton” is formed, which is called aluminosilicate refractory fiber.

4) It can be compressed into fiber blanket, board, or woven into cloth instead of the firebrick of high-temperature furnace lining in metallurgy, chemical, glass and other industry.

5) Firefighters can use refractory fiber cloth to make clothes.

Other applications

1) Using magnesia and bauxite clinker as raw materials, and adding appropriate binder, the effect of casting integral barrel lining of ladle is very good.

2) It is used to produce bauxite cement, abrasive materials, ceramic industry, chemical industry, as well as a variety of aluminum compounds

Alumina Bauxite Aggregate,Calcined Bauxite,Raw Bauxite



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