Sự miêu tả
What is a ceramic fiber module?
The main raw material of ceramic fiber module is ceramic fiber blanket, which is made by folding and compressing ceramic fiber blanket.
It is mainly used in industrial kilns, such as lining insulation of kilns in petrochemical industry, lining insulation of kilns in metallurgical industry, lining insulation of kilns in building materials industry such as ceramics and glass, lining insulation of heat treatment furnaces in heat treatment industry, and lining insulation of other industrial kilns.
Các sản phẩm sợi gốm bán nóng khác
Ceramic fiber module product indicators
| Grade | Conventional type | Standard type | High purity type | High aluminum | Zirconium-containing | |
| Nhiệt độ phân loại (oC) | 1050 | 1260 | 1260 | 1360 | 1430 | |
| Nhiệt độ làm việc(oC) | <1000 | 1000 | 1100 | 1200 | 1350 | |
| Thành phần hóa học (%) | AL2O3 | 44 | 46 | 47-49 | 52-55 | 39-40 |
| AL2O3+SiO2 | 96 | 97 | 99 | 99 | – | |
| AI2O3+SiO2+ZrO2 | – | – | – | – | 99 | |
| ZRO2 | – | – | – | – | 15-17 | |
| Fe2o3 | <1 | <1 | <1 | 0.2 | 0.2 | |
| Na2O + K2O | ≤0,5 | ≤0,5 | 0.2 | 0.2 | 0.2 | |
| Tỉ trọng (kg/m3) | 200±15 | 200±15 | 200±15 | 200±15 | 300±15 | |
| Dimensions | 300×300×200mm300×300×250mm.300×300×300mm, including anchors | |||||
Từ Wikipedia: Sợi gốm
Characteristics of Ceramic Modules
| đặc trưng | Describe |
|---|---|
| Độ ổn định nhiệt độ cao | Able to withstand temperatures above 1000°C |
| Hiệu suất cách nhiệt | Độ dẫn nhiệt thấp, effectively isolating heat transfer |
| Chống ăn mòn | Good corrosion resistance to corrosive media such as acid and alkali |
| Nhẹ | Low density, trọng lượng nhẹ, easy to use |
| Đang đeo điện trở | Bề mặt mịn, Kháng mòn cao |
| Mechanical properties | Has good tensile strength and impact resistance |
Ceramic fiber module installation advantages
| Advantages | Describe |
|---|---|
| Nhẹ | Reduces heat absorption, easy to install and transport |
| Good elasticity | Can resist mechanical external forces and compensate for furnace shell deformation |
| Độ dẫn nhiệt thấp | Improve energy saving and resist thermal shock |
| Flexible installation | Different arrangements possible |
| Low cost | No need for drying and maintenance, it can be used after installation |
ceramic fiber module density
Witness range
International standard: There is only one standard for density in the world, which is 220Kg/m3
Practical application: According to the furnace type, nhiệt độ, combustion medium, temperature rise requirements of the heat treatment furnace, the density of the refractory ceramic fiber module is set at 200-240Kg/m3Density influence
Độ dẫn nhiệt: The greater the density, the lower the thermal conductivity, but after exceeding a certain range, the thermal conductivity no longer decreases, but tends to increase
Insulation effect: Too high density may cause the surface fiber of the ceramic fiber module to break and be carried away by the furnace wind, and the furnace lining gradually becomes thinner, resulting in the attenuation of thermal insulation performanceOptimum density
Porous fiber materials have an optimal volume density with the minimum thermal conductivity. The volume density of ceramic fiber on the hot surface of the layered ceramic fiber wall lining is specified as 130-160Kg/m?, and the volume density of ceramic fiber on the hot surface of the flat-laid composite furnace lining is specified as 200-240Kg/m?
Advantages of ceramic fiber module anchoring
Benefits for metal anchors
Nhiệt độ: The anchoring system is away from the hot surface of the component, so that the metal anchor is at a relatively low temperature, which improves the safety of the anchoring. Ví dụ, in some kiln applications, it can reduce the risk of damage to the metal anchor due to high temperature.
Stability: The ceramic fiber module can be firmly fixed in the corresponding position to ensure the stability of the entire structure. Ví dụ, in industrial kilns such as tunnel kilns, when facing complex thermal and mechanical stresses, the stable anchoring can prevent the module from shifting.
Improvement of the overall performance of ceramic fiber modules
Gap treatment: During the module installation process, the elastic fiber blanket can resist mechanical external forces, and the elasticity of the fiber blanket can compensate for the deformation of the furnace shell, so that no gaps are generated between the components. Ví dụ, when the furnace shell may be deformed due to thermal expansion and contraction, the anchoring helps to keep the modules tightly connected.
Energy-saving effect: Due to the anchoring, the module is installed firmly, and the low thermal conductivity can be better utilized, which brings high energy-saving effects and helps to reduce heat loss during the operation of kilns and other equipment.
Đánh giá
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