High alumina refractory mortars used in kilns in metallurgy, building materials, machinery, chemical industry, electric power and other industries, used for masonry clay bricks, high alumina bricks, corundum bricks, with full ash joints, good air tightness of masonry, high bonding strength, high temperature performance Excellent, suitable for construction time and so on.
High alumina refractory mortars for blast furnace
The main material of high alumina refractory mortars is high-alumina clinker, soft clay for binder or chemical binder. The content of Al2O3 is determined according to the masonry composition and usage requirements of the masonry site. It can be widely used in various industrial furnaces and kilns for high-alumina brick masonry. It is widely used in the furnace bottom, hearth, hearth, furnace waist and other parts of blast furnaces, and is used for masonry roof, regenerator, combustion chamber, etc. on hot blast stoves. According to the classification regulations of GB/T2994-1994, high alumina refractory mud is divided into 8 grades according to Al2O3 content and bond strength. That is, 3 grades of ordinary high alumina refractory mortars:
project |
index |
||||||||
LN-55 |
LN-65 |
LN-75 |
LN-65P |
LN-75P |
GN-85P |
GN-90P |
|||
Al2O3%< |
55 |
65 |
75 |
65 |
75 |
85 |
90 |
||
Refractoriness< |
1760 |
1780 |
1780 |
1780 |
1780 |
1780 |
1780 |
||
Room temperature flexural bond strength/MPa |
110℃ after dry |
1.0 |
1.0 |
1.0 |
2.0 |
2.0 |
2.0 |
2.0 |
|
1400℃×3h After burning |
4.0 |
4.0 |
4.0 |
6.0 |
6.0 |
- |
- |
||
1500℃×3h After burning |
- |
6.0 |
6.0 |
||||||
0.2MPa softening temperature under load T2/℃ |
- |
1400 |
1400 |
1600 |
1650 |
||||
Heating permanent wire change rate |
1400℃×3h After burning |
-5~+1 |
- |
||||||
1500℃×3h After burning |
- |
-5~+1 |
|||||||
Bonding time/min |
1-3 |
||||||||
Granularity% |
<0.1mm |
100 |
|||||||
>0.5mm |
2 |
||||||||
<0.075mm |
50 |
40 |
Uses: Blast furnace hot blast furnace bottom, furnace just, furnace belly, furnace waist, high alumina brick masonry. The ideal joint material developed by using special admixtures is suitable for all kinds of refractory brick masonry of metallurgical system tempering kiln and other thermal equipment.
Features of high alumina refractory mortars:
stable function
easy to use
No need to get stuck
strong adhesion
rapid strength
Good masonry function
not flowing
Hardening time is suitable
White corundum is made from industrial alumina powder, which is smelted in an arc at a high temperature above 2000 ℃ and then cooled. After crushing and shaping, magnetic separation to remove iron, it is divided into various particle sizes.
Common low-creep high-alumina bricks can be used in blast furnace hot blast stoves, as well as other industrial kilns, and can also be made into low-creep high-alumina bricks of different sizes according to specific construction requirements, such as lattice bricks, special-shaped bricks, anchor bricks, etc. , mainly used in industrial kilns in long-term high temperature environments
Anhydrous taphole mud/taphole clay refers to taphole mud made of tar, resin, etc. as binders and corundum, bauxite, clay, silicon carbide, coke powder, etc. as raw materials. Anhydrous carbon taphole mud is made by a mud mill. When rolling, oil is added first, then block materials (clay and asphalt), and then powder materials (coke powder and clinker powder) are added after crushing. After pressing and mixing, the mud can be produced when it meets the standards.
Anhydrous tap hole mix for blast furnace tap hole
The chemical composition of bauxite is mainly Al2O3, SiO2, Fe2O3, TO2, accounting for about 95% of the total composition, and the secondary components are CaO, MgO, K2O, Na20, S, MnO2 organic matter and trace components Ga, Ge, etc.
High alumina castable is a refractory castable made of high alumina bauxite clinker as aggregate and refractory clay as powder, adding aluminate cement and sodium tripolyphosphate according to the formula proportion
Special Acid-proof Brick Lightweight acid-proof Brick Acid resistant brick is the ideal choose for your project with their features of proof pressure, corrosion resistance, easy to clean and acid-base resistance.
Insulating fire brick is a new type of building material synthesized with polymer materials. The main function is to keep warm, reduce heat loss and improve thermal efficiency.
White corundum is made from industrial alumina powder, which is smelted in an arc at a high temperature above 2000 ℃ and then cooled. After crushing and shaping, magnetic separation to remove iron, it is divided into various particle sizes.
Common low-creep high-alumina bricks can be used in blast furnace hot blast stoves, as well as other industrial kilns, and can also be made into low-creep high-alumina bricks of different sizes according to specific construction requirements, such as lattice bricks, special-shaped bricks, anchor bricks, etc. , mainly used in industrial kilns in long-term high temperature environments
Anhydrous taphole mud/taphole clay refers to taphole mud made of tar, resin, etc. as binders and corundum, bauxite, clay, silicon carbide, coke powder, etc. as raw materials. Anhydrous carbon taphole mud is made by a mud mill. When rolling, oil is added first, then block materials (clay and asphalt), and then powder materials (coke powder and clinker powder) are added after crushing. After pressing and mixing, the mud can be produced when it meets the standards.
Anhydrous tap hole mix for blast furnace tap hole
The chemical composition of bauxite is mainly Al2O3, SiO2, Fe2O3, TO2, accounting for about 95% of the total composition, and the secondary components are CaO, MgO, K2O, Na20, S, MnO2 organic matter and trace components Ga, Ge, etc.
High alumina castable is a refractory castable made of high alumina bauxite clinker as aggregate and refractory clay as powder, adding aluminate cement and sodium tripolyphosphate according to the formula proportion
Special Acid-proof Brick Lightweight acid-proof Brick Acid resistant brick is the ideal choose for your project with their features of proof pressure, corrosion resistance, easy to clean and acid-base resistance.
Insulating fire brick is a new type of building material synthesized with polymer materials. The main function is to keep warm, reduce heat loss and improve thermal efficiency.
White corundum is made from industrial alumina powder, which is smelted in an arc at a high temperature above 2000 ℃ and then cooled. After crushing and shaping, magnetic separation to remove iron, it is divided into various particle sizes.
Common low-creep high-alumina bricks can be used in blast furnace hot blast stoves, as well as other industrial kilns, and can also be made into low-creep high-alumina bricks of different sizes according to specific construction requirements, such as lattice bricks, special-shaped bricks, anchor bricks, etc. , mainly used in industrial kilns in long-term high temperature environments
Anhydrous taphole mud/taphole clay refers to taphole mud made of tar, resin, etc. as binders and corundum, bauxite, clay, silicon carbide, coke powder, etc. as raw materials. Anhydrous carbon taphole mud is made by a mud mill. When rolling, oil is added first, then block materials (clay and asphalt), and then powder materials (coke powder and clinker powder) are added after crushing. After pressing and mixing, the mud can be produced when it meets the standards.
Anhydrous tap hole mix for blast furnace tap hole
The chemical composition of bauxite is mainly Al2O3, SiO2, Fe2O3, TO2, accounting for about 95% of the total composition, and the secondary components are CaO, MgO, K2O, Na20, S, MnO2 organic matter and trace components Ga, Ge, etc.
High alumina castable is a refractory castable made of high alumina bauxite clinker as aggregate and refractory clay as powder, adding aluminate cement and sodium tripolyphosphate according to the formula proportion
Special Acid-proof Brick Lightweight acid-proof Brick Acid resistant brick is the ideal choose for your project with their features of proof pressure, corrosion resistance, easy to clean and acid-base resistance.
Insulating fire brick is a new type of building material synthesized with polymer materials. The main function is to keep warm, reduce heat loss and improve thermal efficiency.