Acid resistant refractory gunning material is used for spraying of blast furnaces, hot blast stoves, hot blast pipes, flue protection layers, working layers, etc.
Acid resistant refractory gunning material
Acid resistant refractory gunning material is used for spraying of blast furnaces, hot blast stoves, hot blast pipes, flue protection layers, working layers, etc. Reasonable selection of materials, strong adhesion, good integrity, simple construction process, good operation performance, high temperature resistance, high strength and good thermal insulation properties, can meet the requirements of fire resistance, thermal insulation, acid resistance and other conditions. The rapid construction and repair of the whole furnace village is carried out by means of high pressure injection molding.
Acid resistant refractory gunning material features:
It can improve the sealing performance of furnace and hot blast stove
Reduce heat loss and prevent overheating of the furnace shell
Extend the service life of the furnace body and shorten the repair time of the furnace.
Increase productivity.
Detailed indicators of acid resistant refractory gunning material:
Index |
FN-130 |
FN-140 |
FL-130 |
FL-S |
MS |
XA |
|
chemical composition(%) |
Al2O3 |
≥40 |
≥45 |
≥35 |
≥35 |
≥50 |
≥65 |
CaO |
/ |
/ |
/ |
/ |
≤0.5 |
/ |
|
Fe2O3 |
/ |
/ |
/ |
/ |
SiO2≤30 |
≤2.0 |
|
Refractoriness℃ |
≥1530 |
≥1610 |
≥1530 |
/ |
≥1530 |
≥1770 |
|
Flexural strengthMpa |
110℃ |
≥5 |
≥5 |
≥3 |
≥2 |
≥5.5 |
≥6 |
hot state |
1300℃ 0.5 |
1400℃ 0.5 |
1300℃ 0.5 |
800℃ 0.5 |
2.5 |
1300℃ 1.0 |
|
Rate of change of line after ignition(%) |
1300℃×3h ±1.0 |
1400℃×3h ±1.0 |
1300℃×3h ±1.0 |
800℃×3h ±1.0 |
1300℃×3h ±0.5 |
1300℃×3h ±1.0 |
|
Bulk density after burning(g/cm3) |
1300℃×3h ≥1.65 |
1400℃×3h ≥1.80 |
1300℃×3h ≥1.40 |
800℃×3h 09-1.1 |
1300℃×3h ≥2.0 |
1300℃×3h ≥2.20 |
|
Compressive strength after burning Mpa |
1300℃×3h ≥1.65 |
1400℃×3h ≥25 |
1300℃×3h ≥15 |
-- |
-- |
1300℃×3h ≥20 |
|
Thermal Conductivity (w/m) |
0.58-0.70 1300℃ |
---- |
≤0.30 350℃ |
≤0.27 350℃ |
--- |
---- |
|
use |
Blast furnace, hot blast stove system protection layer |
Blast Furnace Top Gas Outlet Pipe System Blast Furnace Bottom |
Hot air duct system protection layer |
Smoke duct (chimney) system |
Blast furnace hot blast furnace ball top protective layer |
Blast furnace hot blast furnace lining spray coating |
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The unshaped refractory material used when repairing the lining of thermal equipment by spray construction method is called refractory gunning material. It is made of a refractory set with a certain particle gradation
Converter, electric furnace gunning material has the characteristics of high adhesion rate, good high temperature corrosion resistance, etc.
YY Refractory supplies premium-grade ramming material (ramming mass) for blast furnaces. Heat-resistant, erosion-proof, and easy to apply. Boost furnace longevity & efficiency. ISO-certified. Get a quote today!
Refractory wet mud used to block the iron outlet can be divided into two categories: water cannon mud and waterless gun mud. On large and medium -sized blast furnaces on high top pressure and high degree of smelting.
Converter, electric furnace gunning material has the characteristics of high adhesion rate, good high temperature corrosion resistance, etc.
It is widely used in the lining of the kiln working face which is in direct contact with the flame, and has become one of the research hotspots in recent years.
Brown corundum is made of natural bauxite as raw material, carbon (mainly coke) is used as reducing agent, and iron filings are added as sedimentation agent (clarifier) to form ferrosilicon deposited on the bottom of electric furnace.
Brown Fused Alumia powders are fused wIth premium raw materials and 3500 KVA furnace. It is perfect material specifically manufactured to be used for general abrasive applications in bonded abrasive tools, polishing and sandblasting grit. It has lower hardness and abrasive capacity than diamond, boron carbide, and silicon carbide, it is widely used for grinding ferrous materials, finishing tough and hard materials. It is also be used as high-class refractory materials. Brown Fused Alumia is offered in macro and micro powder form, in both F and P grades.
The unshaped refractory material used when repairing the lining of thermal equipment by spray construction method is called refractory gunning material. It is made of a refractory set with a certain particle gradation
Converter, electric furnace gunning material has the characteristics of high adhesion rate, good high temperature corrosion resistance, etc.
YY Refractory supplies premium-grade ramming material (ramming mass) for blast furnaces. Heat-resistant, erosion-proof, and easy to apply. Boost furnace longevity & efficiency. ISO-certified. Get a quote today!
Refractory wet mud used to block the iron outlet can be divided into two categories: water cannon mud and waterless gun mud. On large and medium -sized blast furnaces on high top pressure and high degree of smelting.
Converter, electric furnace gunning material has the characteristics of high adhesion rate, good high temperature corrosion resistance, etc.
It is widely used in the lining of the kiln working face which is in direct contact with the flame, and has become one of the research hotspots in recent years.
Brown corundum is made of natural bauxite as raw material, carbon (mainly coke) is used as reducing agent, and iron filings are added as sedimentation agent (clarifier) to form ferrosilicon deposited on the bottom of electric furnace.
Brown Fused Alumia powders are fused wIth premium raw materials and 3500 KVA furnace. It is perfect material specifically manufactured to be used for general abrasive applications in bonded abrasive tools, polishing and sandblasting grit. It has lower hardness and abrasive capacity than diamond, boron carbide, and silicon carbide, it is widely used for grinding ferrous materials, finishing tough and hard materials. It is also be used as high-class refractory materials. Brown Fused Alumia is offered in macro and micro powder form, in both F and P grades.