Ironmaking hot blast furnace system
High-temperature and high-strength ceramic wear-resistant material for blast furnace hot blast stove pipe
Name：TCJ-1、TCJ-2
Usage
Blast furnace hot blast stove body, hot blast stove vault, hot blast stove hot blast pipe, hot blast pipe flare, hot blast outlet, hot blast branch pipe, hot blast pipe all three forks, etc., new blast furnace or hot state repair.
Characteristic
High strength and good abrasion resistance.
Small line change
Good thermal shock stability
Good overall performance
Good thermal insulation performance
Construction method
Cold/hot pouring
Technical indicators
|
Indicator Grade |
Fire resistance |
AL2O3 |
Bulk density 110℃x24h |
Flexural Strength | Compressive Strength |
Burning backline changes 1400℃x3h |
Thermal Shock Stability 1100℃（Water-cooled） |
Safe Use Temperature | ||
|
110℃x24h |
1400℃x3h |
110℃x24h |
1400℃x3h |
|||||||
|
Unit |
℃ |
% |
g∕cm3 |
Mpa |
Mpa |
Mpa |
Mpa |
% |
vice- |
|
|
TCJ-1 |
≥1790 |
≥70 |
≥2 .75 |
≥12 |
≥14 |
≥50 |
≥150 |
±0 .25 |
≥30 |
≤1500℃ |
|
TCJ-2 |
≥1790 |
≥65 |
≥2 .5 |
≥9 |
≥10 |
≥50 |
≥80 |
±0 .3 |
≥20 |
≤1350℃ |
In the early 2000s, the domestic ironmaking system hot blast furnace hot air pipe bifurcation, bifurcation flare, hot air main bifurcation, hot air riser bifurcation, hot blast furnace outlet due to enhanced smelting frequently run wind red burn through the problem, directly affecting the normal production of the blast furnace, has always been a plague on the technical problems of the ironmaking managers. Based on the above reasons, our company researched the high-temperature and high-strength ceramic wear-resistant materials in 2003. Wear-resistant materials and construction methods have applied for invention patents, wear-resistant materials patent certificate No. ZL200710189737.2;; and
Pouring and molding method patent certificate number: ZL200510017725.2. So far by the use of more than 400 blast furnace hot blast furnace, after 17 years of use of practice, the use of high-temperature high-strength ceramic wear-resistant materials for new construction or hot repair of the above parts did not appear in a case of running, red, burned through the phenomenon. It has been recognized by domestic iron and steel design institutes and iron and steel enterprises, and has become a new design concept.
Part of the case
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