Fireclay refractory bricks for furnace

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Loading Port:
Qingdao
Payment Terms:
TT OR LC
Min Order Qty:
5 m.t.
Supply Capability:
1500 m.t./month

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Product Description:

 

Description:

Fireclay refractory bricks for furnace are produced with selected bauxite chamotte by advanced process and strict quality control. The main mineral components are corundum and mullite phases. It features excellent high temperature mechanics and chemical corrosion resistance.

 

Features

1.Resisting high temperature

2.Great bulk density

3.Low iron content

4.Good eroding resistance

 

Applications:

1. Steel furnaces

2. Iron making furnaces

3. Glass kiln

4. Ceramic tunnel kiln

5. Cement kiln

 

Our competitive Advantage:

1.Competitive Price. Make the products competitive in your market.

2.Abundant Experience. Prevent cracks and twist in bricks.

3.Different Moulds. Save mould fees for you.

4.Lower ferric Oxide,porosity,higher refractoriness,density,higher CCS and exact tolerance.

5.Strict Quality Control. Meet clients’ quality requirement.

6.Safty packing,prompt delivery time,and excellent after-sales services.

7.Large stocks. Guarantee prompt delivery.

8.Professional Packing. Avoid damage and secure the goods in transportation

 

Specifications:

Ordinary High alumina brick

Item

HA60

HA70

HA75

HA80

AL2O3(%)

≥60

≥70

≥75

≥75-80

SIO2(%)

32

22

20

≥18

Fe2O3(%)

≤1.8

≤1.8

≤1.8

≤1.8

Refractoriness °C

1790

>1800

>1825

≥1850

Bulk density,g/cm3

2.4

2.45-2.5

2.5

2.55-2.6

Softening temperature under load

≥1470

≥1520

≥1530

≥1550

Apparent porosity,%

22

<21

<21

<20

Cold Crushing strength Mpa

≥45

≥50

≥54

≥60

Phosphate bonded high alumina bricks

Item

LAP75

LAP77

LAP85

AL2O3 %

≥75

≥77

≥80-85

Fe2O3 %

≤3.0

≤3.0

≤1.8

Ca0 %

≤0.6

≤0.6

≤0.6

Refractoriness °C

≥1800

≥1800

≥1850

Bulk density g/cm3

≥2.65

≥2.70

≥2.80

Cold crushing strength MPa

≥60

≥64

≥110

Refractoriness under load 0.2MPa °C

≥1350

≥1300

≥1350

Application

Used for high temperature parts lining of cement rotary kiln

Used for Badly worn parts of cement rotary kiln

 

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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:How to make refractory bricks and boiler wall adhesion more firm?
If the condition, the user heat-resistant steel welding grip nails, expansion joints can not be too big.. Also to use high temperature aluminum brick, high temperature resistance, but also to extend its use cycle.
Q:What materials are used for roof insulation?
There are two kinds: one is a kind of cotton insulation board, such as rock wool board, aluminum silicate cotton board, but this is not environmental protection, harmful to life, foam board (this fire safety factor minimum), these relatively cheap.
Q:The cloth blowing is not uniform on the lime kiln refractory brick is damaged it
Lining 1 yuan to prevent direct damage to the Sindh kiln high temperature flame or air, to protect the kiln carcass; 2, to prevent harmful substances (CO, SO2) erosion of the kiln body; 3, to prevent corrosion, material flow on the kiln body; 4, reduce the kiln temperature, kiln body to prevent oxidation 5, has the function of corrosion; thermal insulation; 6, to improve the coating performance.
Q:What are the reasons for the spalling of refractory bricks in the production of lime kiln?
Therefore, the choice and masonry of refractory bricks are of vital importance. If there is a brick kiln kiln off block process of reproduction, is now because of the use of refractory brick kiln material mostly three grade high alumina bricks. The content of AL2O3 is about 55%, of which the content of Fe2O3 is about 2%, which is weak, and the alkali corrosion resistance is a little worse. In a containing three grade high alumina bricks in the composition of AL2O3, Si2O3, and other elements also contain K, Na trace, were the most, thus causing the system of the low melting point is very low, even at 1400 DEG C has been liquid phase, and generate CaAL12O19 limestone and calcium feldspar etc.. Form corrosion loss. Therefore, a long time will cause the loss of block. On the one hand, it may be caused by construction.
Q:What is the difference between metal compounds and metal solid solutions?
A series of intermetallic compounds occurring between transition metals in intermetallic compounds. The most important are L sigma sigma phase and ves phase, they are topologically close packed (TcP) phase, they consist of a small atomic radius of a dense layer, which is inlaid with a large atomic radius of atomic structure, this is a highly dense pile. In addition to atomic size factors, their formation is also influenced by the concentration of electrons.
Q:What are the grades of high alumina bricks?
According to the size of high aluminum brick is divided into: standard brick, special-shaped brick.
Q:What are the requirements for Rubble backfill height?
1, filling thickness is not greater than 50cm.2, filling, the use of layered filling.
Q:The difference between ordinary and diatomite brick refractory brick
Refractory brick belongs to a large class, according to different materials used are divided into: high alumina brick, dolomite brick, magnesia chrome brick, magnesia spinel brick, phosphate brick, carborundum brick, brick, mullite bricks etc..
Q:Use of high alumina refractory bricks?
High alumina brick refractory than clay refractory bricks and brick refractory degree are higher, up to 1750~1790 DEG C, which belongs to high-grade refractory materials.

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