product list
- Refractory Bricks
- Corundum Plastic Materials
- Refractory Castable
- High Aluminum Refractory Castable
- Light Refractory Castable
- Molten Copper Refractory Castable
- Silica Ramming Mass
- Silicon Carbide Refractory Castable
- Magnesite Basic Ramming Mass
- Refractory molded brick
- Corundum refractory Concrete
- Refractory precast block
- Zirconium refractory Mixture
- Magnesia refractory cement
- Silica Refractory Cement
- Refractory cement
- Fire clay
- Alumina Composite refractory concrete
- Refractory mortar
- Continuous casting Refractory cement
- Silica sand
- Quartz sand for copper smelting
- Molten Copper Refractory Material
- Molten copper ramming mass
- Molten copper refractory castable
- Acid induction furnace lining refractory cenent
- Castable Refractory for natural copper smelting
- Castable refractory furnace lining
- Application of refractory ramming mass
- Refractory materials furnace lining
- Amorphous Refractory Castable
- Molten Zinc Refractory Castable
- Molten Zinc Ramming Mass
- Molten Aluminum Refractory Material
- Ladle Castable
- Special Refractory Ramming Mass
- Accessory Material Refractory (Crystallizer)
- Silica Ramming Mass (GDL)
- Silica Ramming Mass (GYDL)
- Heavy Accessory Refractory Material
- High Strength Refractory Mortar
- Special Ramming Mass
- Light-weight Castable Refractory
- Castable Refractory
- Accessory Refractory Material
- High Grade Composite Silica Ramming Mass
- Corundum Plastic Refractory Cement
- Alumina Composite Ramming Mass
- Silica Refractory Ramming Mass
The damage mechanism of refractory materials furnace lining
To sum up the reasons of lining damage can be roughly divided into four types:
Mechanical impact and wear;
Dissolution of refractory materials at high temperature;
High temperature solution infiltration;
The high temperature gas phase evaporation;
The main components of converter slag are Cao, SiO2, FeO and so on,When the slag basicity is low, with Cao, MgO as the main component of lining refractory erosion is serious, the lining life reduced;On the contrary, when the basicity of the slag is high, erosion of the lining is relatively minor, the lining life is relatively improved.Slag containing fluorine ion, manganese ion, or molten pool temperature to L700 Deg. C, the solution viscosity will decrease sharply, damage speed lining up, life is greatly reduced.So the temperature of the molten steel converter is high, will make the lining life reduced accordingly.
The solution is infiltrated into the internal components of the refractory material including:
Slag in the SiO2, Cao, FeO; steel liquid in the Fe, Si, Al, Mn, C, and even metal vapor, CO gas and so on.These infiltrated components are in the capillary channel of refractory materials,The physical and chemical properties of the working surface of the refractory material and the discontinuity of the base of the original refractory material,The emergence of crack in the blast temperature converter operation, and the flaking and loose structure, strictly speaking, the damage process than dissolved damage process is much more serious.
Therefore, to reduce the infiltration solution on refractory measures: A. should reduce the pore lining refractory porosity and porosity;B. in refractory materials and the solution is not easy to wet material, such as graphite, carbon and so on;C. strictly control the viscosity of the solution, namely the control of smelting strength, control the tapping temperature.
The lining of slag resistance test, slag erosion process can be obtained for MgO-C brick: Graphite oxidation and periclase phase is SiO2 in slag, low melting material is to generate Fe2O3 erosion reaction melting loss.
In the carbon containing refractories lining, with the increase of carbon content slag resistance will be improved,but not the carbon content is good, because the carbon content is high, the oxidation of carbon loss after lining refractory is loose, the use effect will become worse.
Taurus Refractory ramming mass Factory mainly engaged in professional manufacturer of development, production and sales of the refractory mixture such as melting copper, aluminum and zinc furnace lining. And supply castable refractory for copper smelting, ramming mass for molten copper,fire clay,refractory mortar, refractory cement ,refractory mixture, refractory concrete and silica sand for copper smelting.
Website: http://www.jnrefractory.com
Contact: Mr. Niu
Tel: +86-371-64372566
Fax: +86-371-64372588
Mobile Phone: +86-15137151612
Email: info@jnrefractory.com
gyjinniu@163.com
products list : castable refractory cement for up lead copper rod Molten Zinc Refractory Casting Molten Zinc Ramming Mass Molten Aluminum Refractory Material refractory castable for up lead copper rod Special Refractory Ramming Mass Copper alloy refractory materials for electric furnace acidic refractory for electric furnace body electric furnace refractory material for copper smelting Corrosion resistance Molen Zinc Refractory Castable for up lead copper rod High Strength Refractory Mortar Refractory installation services Fireclay Light-weight Castable Refractory Casting Refractory Accessory Refractory Material Corrosion resistance Quartz sand High Grade Composite Silica Ramming Mass Corundum Plastic Refrctory Alumina Composite Ramming Mass for horizontal continuous casting Silica Refractory Ramming Mass for horizontal continuou casting quartz sand refractory for copper smelting silica sand refractory for core induction furnace refractory concrete block pre-cast refractory block refractory ramming mixture fire clay for up lead copper rod refractory mortar for non core induction furnace refractory cement for copper smelting high grade composite silica mortar silica refractory cement Magnesia refractory cement