90% Round Kiln Calcined Bauxite For Alumina Industry

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Product Description:

1.Sepcification ,

AL2O3           90%min

Fe2O3           1.5%max

SiO2             4%max

TiO2             4%max

CaO+MgO  0.4%max

R2O            0.20%max

Moisture Absorption 3% max

Bulk Density  3.4g/cm3 min

2.Size200mesh,325mesh,100mesh,0-1mm,1-3mm,3-5mm and 5-8mm

3.Description

Bauxite is earthy mineral which consists mainly of Al2O3 , a kind of hydrated alumina containing impurities. According to the usage, It can be divided into the levels of Metallurgy, chemical industry, grinding, cement, and refractory. Clinker is pale yellow and dark grey. It is mainly used for high aluminum refractory material, and also can be used to make the fused corundum. Our materials of calcined bauxite is mainly D-K Style Bauxite Ore.

4.Specification,

   Item

 AL2O3

 FE2O3

  TIO2

K2O+Na2O

CaO+MgO

Bulk density

Moisture Absorption

  AL70

  ≥  70

  ≤3.0

   ≤4.0

       ≤0.6

     ≤0.6

    ≥2.7

               ≤5

  AL75

  ≥75

  ≤2.5

  ≤4.0

       ≤0.5

    ≤0.5

    ≥2.8

               ≤5

 AL80

  ≥80

  ≤2.5

  ≤4.0

       ≤0.3

    ≤0.5

    ≥2.9

               ≤5

 AL85

  ≥85

  ≤2

  ≤4.0

       ≤0.3

    ≤0.5

    ≥3.0

               ≤4

 AL86

  ≥86

  ≤2

 ≤4.0

       ≤0.3

    ≤0.5

    ≥3.1

               ≤4

 AL87

  ≥87

  ≤2

 ≤4.0

       ≤0.3

    ≤0.5

   ≥3.2

               ≤4

 AL88

 ≥88

  ≤1.8

 ≤4.0

       ≤0.25

    ≤0.5

   ≥3.25

               ≤4

 AL90

 ≥90

  ≤1.5

 ≤4.0

      ≤0.25

    ≤0.5

   ≥3.4

               ≤3

90% Round Kiln Calcined Bauxite For Alumina Industry

5.Material

Our material is from Yangquan, Shanxi,China. Yangguan bauxite ore have the best plasticity and adhesion. It can improve their product life.

Furnace and fuel,We have 6 shaft furnaces and use the gas for fuel. It can increase the temperature to fully burn, improve the bulk density and reduce impurities. In addition, using the gas can reduce the energy consumption, less CO2 emission for improvement of the work environment.


 Annual supply, 60,000mt of calcined bauxite per year

90% Round Kiln Calcined Bauxite For Alumina Industry

 

Inspection standard,

GB/T17617-1998----Sampling of raw materials and unshaped products

GB/T 2999-2002----Determination of bulk density of granular materials

GB/T 6900-2006----Chemical analysis of alumina-silica refractories

GB-325782---- Methods for chemical analysis of bauxite

SN/T 0481.1~0481.6—1995----Methods for inspection of bauxite for export

YB/T5180-1993----High-lumina bauxite and hard clay impurities inspection methods

GB/T 15545-1995----Unshaped refractory--Packing, marking, transportation  and  storage

Application,

1, Aluminium metallurgy

2, Precision casting/Investment casting,

    bauxite grog fines can be made into mold for precision casting.

3, Refractory, High alumina bauxite's refractoryiness can reach 1780oC. It is charactered by good       chemical stability and mechanical performance.

4, Aluminium silicate refractory fiber, The high alumina bauxite grog can melt under 2000oC to 2200oC in the electric arc furnace.After a series of processing, it can become aluminium silicate refractory fiber, which can be made into fiber blanket, cloth, plate and so on

5, Mixing magnesia and bauxite grog with binders to pour the molten steel ladle for better overall lining performance.

6,Producing bauxite cement

7,Abrasives

8, Ceramics industry

9, Chemistry industry for all kinds of aluminium compound.


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Q:how about the performance of aluminum silicate fire proof thermal insulation?
aluminum silicate fire proof thermal insulation board has a good performance. it is a artificial board that separates the wood and plant fiber by mechanical and chemical methods and mixed the adhesion agent and water-proofing agent, molding by high temperature and high press. the density of fiber. tha above information is coming from the Internet and it is just for reference.
Q:What is the interior fireproof thermal insulation material?
Polystyrene board, extruded sheet and polyurethane are mainly used. Polystyrene board is the cheapest, but the thermal insulation effect is ordinary. When absorbing water, it will deform. Other waterproof measures are needed to be made after insulating layer is done./
Q:What problems should be paid attention to while using refractory materials under a controlled atmosphere?
Pay attention to the performance of the materials, and the use of non oxide materials!
Q:who knows the fire resistant level of fireproof gypsum board ?
combustion performance of building decoration materials should be divided into four levels: A level, non-flammable; Class B1, flame retardant; B2 level, flammability; B3 level, flammable. Choose the materials above B1level. Thank you
Q:What are included in wall fireproofing material?
External wall thermal insulation materials are divided into A and B according to combustion level. Grade A is incombustible material, while grade B is combustible material. A few years ago, fires in CCTV building and Shenyang hotel resulted from grade B material. Currently grade A is usually used, and some are even cheaper than the grade B material. Grade A is roughly divided into insulation mortar, phenolic board, rock wool board, foam cement board, etc. Insulation mortar is quite good. It is easy and convenient to construct, has low cost, but the production is too simple and it is easy to fake.
Q:Which basic refractory is better?
1 Zibo Quanxing Refractories Plant, factory direct, quality assurance, best price, off the shelf. 2 Zibo Huadian Refractories Co.,Ltd. one package service from research, production, sale to construction, our trust!
Q:Who knows about the B-level fireproof insulation materials?
Organics, extruded sheet, polyphenyl board and phenolic resin. The fireproof performance of sea capacity module (fireproof and thermal insulation material) is B1-level with the heat conductivity coefficient of only 0.028w / m · k. It is a good choice. A-level: Rock wool, glass wool, silicate, aluminum silicate, calcium silicate, phenolic aldehyde, and foam glass. B-level: Rubber and plastic, extrusion molding, polyphenyl, PEF.
Q:Development trend of refractories
Mullite Matrix clinker. There are higher requirements of kaolin and refractory annded life, it should be able to grind medical industrial raw materials alumina, vacuum extrusion molding, high temperature roasting and smelting from unshaped refractory material a good thermal mechanical properties in the kiln and has good application prospect; 2, Dong Qingshi clinker. With kaolin and magnesia as raw materials, wet grinding, vacuum extrusion, and then high temperature calcination, furniture has a very good prospect; 3, magnesium calcium sand. Because of the development of clean steel, low carbon steel, high oxygen steel and stainless steel, the basic importance of free calcium oxide refractories is supported; 4, fused eutectic composite. Bauxite based fused corundum, bauxite based fused mullite, bauxite based fused mullite zirconia, fused corundum zirconia fused zirconia, Magnesium Oxide and other materials have been developing rapidly; 5, high density spherical hollow mullite aggregate. The wall thickness of the shell of the 0.2 - 1.5 - 5 mm, diameter 40 mm, smooth surface, can not be uniform, spherical shell, this may be a double, a prominent part of the surface can be dense, can also be used for hollow casting material, not only can improve the insulation performance of the material, in order to reduce the volume density. Instead of destroying its strength.
Q:what's the classification of fireproof and thermal inuslation matertial?
1. thermal insulation material with A class combustion performance. Rock wool, glass wool, foam glass, foamed ceramics, foam cement, hole-closed perlite (2) thermal insulation material with B class combustion performance: extruded polystyrene board after special processing (XPS)/ polyurethane after special processing (PU) , phenolic aldehyde, gelatine powder polyphenyl granule. 3,thermal insulation material with B2 class combustion performance: molding polystyrene board(EPS), extruded polystyrene board(XPS), polyurethane (PU), polyethylene (PE),etc. sea capacity module and vitrified micro bead(cooperate with the innovator of vitrified micro bead, Liu Weihua) fireproofing issues have been completely solved.
Q:What refractory material lead smelting furnace needs?

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