Anhydrous tap hole mix for blast furnace tap hole
Anhydrous tap hole mix for blast furnace
Anhydrous tap hole mix adopts the technology of raw material homogenization and micropowder pre-mixing, and uses special composite raw materials as admixtures. It has good corrosion resistance, filling and sintering properties, and has a forced repair function for iron cracks. The mouth quickly produces a certain ability to resist mechanical and chemical damage, and the high temperature strength has a good bond with the residual mud, and it is easy to open when tapping and ensures that the molten iron and slag pass quickly. The erosion is small, which is the flow of molten iron and slag. It is stable and smooth, thus inhibiting the circulation of slag and molten iron in the furnace, reducing the damage of the lining bricks on the bottom side of the furnace around the tap hole, well protecting the furnace lining and hearth in the tap hole area of the blast furnace, and being beneficial to the extension of the blast furnace. Furnace life.
Project |
index |
|||
PN-1 |
PN-2 |
PN-3 |
||
Al2O3%≥ |
20 |
25 |
30 |
|
SiC+C%≥ |
30 |
30 |
30 |
|
Bulk density(g/cm3) |
1350℃×3h |
≥1.65 |
≥1.70 |
≥1.80 |
Heating permanent wire change rate% |
-1.5~+1.5 |
-1.5~+1.5 |
-1.5~+1.5 |
|
Cold compressive strength/MPa≥ |
≥8.0 |
≥10 |
≥15 |
|
Recommended for blast furnace type |
1000m3 |
1000m3~2500m3 |
2500m3min |
Advantages of anhydrous taphole clay for blast furnace taphole:
1. It is easy to play mud, and the pass rate of the depth of the iron mouth is more than 98%.
2. Quick-drying, quick-hardening performance, high strength, short withdrawal time.
3. Easy to open, the one-time opening rate reaches more than 98%, which can prevent the crack of the mud hole.
4. The mud bag in the shape of mushroom head can be formed in the hearth, which is beneficial to protect the hearth and the furnace wall.
5. Good corrosion resistance to slag iron, erosion resistance, slow hole reaming and long tapping time.
6. The product is environmentally friendly and non-polluting, and has no physical harm to the operator, improving the working environment in front of the furnace.
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.
The alkali-resistant brick for cement kiln has the characteristics of strong alkali erosion resistance, good thermal shock resistance and high cost performance.
Anchor bricks are anchor bricks for industrial kilns. The electric furnace roof is a furnace roof structure supported by metal hanging bricks and refractory bricks. Therefore, the leakage of reactive gas and hot gas in the furnace will damage the metal hanging parts, thereby causing furnace damage. roof collapse accident. Anchor bricks are also called hanging bricks and anchors.
low porosity clay bricks are mainly used in the regenerators of glass kilns. They can also be used in blast furnaces and hot blast furnaces in the steel industry; cement kilns in the building materials industry; chemical kilns in the chemical industry as kiln linings
Silicon carbide used in industry is a synthetic material, commonly known as emery. Silicon carbide is one of the most commonly used non-oxide refractory raw materials in the field of refractories.
GONGYI YUYING REFRACTORY CO.,LTD is located in GONGYI ZHENGZHOU CITY HENAN province,which is one of the main refractory production bases in China. Main products include different kinds of refractory brick and refractory material :Such as Fire Clay Brick, High Alumina Brick, Light Weight Insulating Brick,expanded clay,ceramic fiber blanket,rock wool products etc.They are widely used in Iron and steel, Nonferrous metals, BuildingMaterials(Cement,Glass,Ceramic), Petrochemical, Energy & Incineration etc industries.
high alumina refractory bricks is mainly used around the furnace cover, electrode holes and exhaust holes of electric furnaces, and its service life is 1 to 2 times longer than that of silica bricks.
Fireclay bricksis suitable for supporting hot blast stoves of large, medium and small blast furnaces