Product detail
Precast Coke Oven Door
Main Composition: Al2O3
Application: Coke oven, etc
Capacity: 500 tons per month
Color: White
Size: As your requirements
Product Introduction
The surface of pre-cast refractory door is made of composite ceramic material. Pre-cast refractory is shaped by high frequency vibration. The unformed material has low porosity, high density and good uniformity. There is crystalline ceramic refractory adhere the pre-cast surface, which have high strength, good abrasion resistance and corrosion resistance. It has been reduced the physical damage during the operation and tar and other chemicals erosion to the refractory.
Features
1. Simple structure and easy to install.
2. Good integrity and impermeability.
3. Long working life.
4. Energy-saving and environment-friendly.
Application
It’s mainly used for the coke oven.
Product Parameters
| Item | Pre-cast Door |
| ω(Al2O3) / % ≥ | 50 |
| ω(MgO) /% ≥ | 3 |
| Apparent Porosity / % ≤ | 28 |
| Bulk Density /g/cm3 ≥ | 2.1 |
| Cold Crushing Strength / MPa ≥ | 35 |
| Rupture Strength /MPa ≥ | 4 |
| Thermal Conductivity /W/(m·K)1000℃(Heating side) ≤ | 1.2 |
| Thermal Shock Resistance(1100℃, water cooling) /cycle ≥ | 50 |
Comparison between new type and traditional type
| New type pre-cast oven door | Traditional oven door |
| Easy to installThe fastening bolts have been inserted in the precast. The precast oven door is clamped to the door structure directly by that bolts. | The oven door installation is very complicated. |
| The oven door is more air impermeability.The new type oven door consists of 6 or 7 precast refractory glazing crystalline ceramic refractory surface.The whole oven door exist 5 or 6 joints. | Traditional oven door has more joints. The joints are easy to become bigger owing to long time mechanical operation.The air impermeability and insulating ability is worse. Heat loss, gas leakage and environment pollution are more serious. |
| Crystalline ceramic refractory glaze have high refractoriness, good bonding performance and malleability, good thermal shock resistance. During the operation, the glaze have good spalling resistance under rapid variation of temperature. | The raw materials of traditional door don’t have good mechanical strength and thermal shock resistance. |
| Long-life | Short-life |
| The maintenance times and costs are reduced, and the labor cost is decreased 70%. | Frequent repair and maintenance cost is high. |
| Energy-saving and environment-friendlyGood heat insulationLess heat lossImprove the carbonation rate | Energy consumption and environment pollutionGas leakageYellow smokeHeat dissipation |
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