Ceramic Fiber Modules For Industrial Furnaces
1. Product Overview
Ceramic fiber modules for industrial furnaces are made of high-purity alumina silicate raw materials, through high-temperature melting, three-dimensional weaving and compression pre-installation technology. They are specially designed for high-temperature equipment such as industrial kilns and pipelines to achieve efficient thermal insulation and energy consumption control.
2. Main raw materials
Ceramic fiber (aluminum silicate fiber): made of bauxite, silica, etc., through high-temperature melting, blowing or spinning. The fiber diameter is usually 2~5μm and the length is 30~200mm.
Binder: such as silica sol, aluminum sol, etc., used to enhance the strength of the module after molding. The binder volatilizes or sinters at high temperature, which does not affect the thermal insulation performance of the material.
Additives: such as hydrophobic agents, anti-slagging agents, etc., optimize the performance according to the application scenario (such as moisture resistance and erosion resistance).
3. Technical parameters
|
Item |
STD |
HP |
HA |
ZA |
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|
Classification Temp (℃) |
1260 (2300F) |
1260 (2300F) |
1360 (2480F) |
1360 (2480F) |
||
|
Working Temp (℃) |
≤1050 |
≤1100 |
≤1200 |
≤1200 |
||
|
Color |
Pure White |
Pure White |
Pure White |
Pure White |
||
|
Bulk Density (Kg/m3) |
160-260 |
160-260 |
160-260 |
160-260 |
||
|
Permanent Linear change (%) |
1000℃X 24h≤ -3 |
1100℃x24h≤ -3 |
1200℃ X 24h≤ -3 |
|||
|
Thermal Conductivity(w/m.k) |
400C |
0.09 |
0.09 |
0.101 |
0.101 |
|
|
500C |
0.119 |
0.119 |
0.120 |
0.120 |
||
|
600C |
0.152 |
0.152 |
0.175 |
0.175 |
||
|
Chemical Composition(％) |
AL2O3 |
45-46 |
47-49 |
52-55 |
45-46 |
|
|
AL2O3+SIO2 |
97 |
99 |
99 |
－ |
||
|
AL2O3+SIO2+ZrO2 |
－ |
－ |
－ |
99 |
||
|
ZrO2 |
－ |
－ |
－ |
5-7 |
||
|
Fe2O3 |
≤ 1.0 |
≤0.2 |
≤0.2 |
≤0.2 |
||
|
Na2O+K2O |
≤ 0.5 |
≤ 0.2 |
≤ 0.2 |
≤ 0.2 |
||
|
Size(mm) |
Length:300 – 600; Height:150-300; Thickness:150-300 As customers 'requirements. |
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|
Package |
Cartons |
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|
Certificate |
CE,ISO9001-2008; ISO14001-2004,SGS, ROHS,SASO, REACH |
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Note: For other product specifications, please consult with the company's sales manager.
4. Classification method (except for the table)
1) By operating temperature:
Low temperature type (≤800℃)
Medium temperature type (800~1260℃)
High temperature type (1260~1400℃, such as zirconium fiber module)
By structural form:
Standard module (rectangular)
Special-shaped module (customized shape according to kiln structure)
5. Application scenarios
(1) Industrial kiln field
Metallurgical industry: lining insulation of heating furnace and annealing furnace.
Petrochemical industry: thermal insulation layer of cracking furnace and reaction furnace.
Building materials industry: back lining insulation of ceramic kiln and glass kiln.
(2) Thermal and energy equipment
Insulation of boiler flue and steam pipe.
Insulation of power plant steam turbine and waste heat recovery device.
(3) High temperature experimental equipment
Laboratory muffle furnace and high temperature tunnel kiln lining.
6. Precautions
Moisture-proof treatment: For long-term humid environment, hydrophobic modules should be used to prevent the fiber from absorbing water and affecting the thermal insulation performance.
High temperature oxidation resistance: The working surface in contact with the flame needs to be equipped with a refractory coating (such as mullite coating) to prevent fiber oxidation and powdering.
Anchor matching: Select the material (such as stainless steel 304/310S) according to the temperature to avoid rust failure at high temperature.
7. Anchor installation and precautions
(1) Screw the guide rod into the anchor bolt, align the center hole of the module with the guide rod, and push it vertically to the furnace wall. Tighten the nut to the preset torque with a socket wrench.
(2) Installation sequence: furnace top → furnace wall, install row by row from the bottom to avoid extrusion and deformation.
(3) Insert a compensation blanket compressed to 25mm thick between each row of modules (2 layers of 20mm blankets stacked), and fix it with U-shaped nails at intervals of 500mm to prevent thermal shrinkage gaps.
(4) The installation direction must be consistent with the folding and compression direction of the module to avoid rebound.
(5) In highly corrosive environments such as gas kilns, curing agent must be sprayed to extend the service life.
(6) During construction, the module fit and anchor firmness shall be checked every 20% of the progress.
(7) Workers shall wear dust masks and heat-insulating gloves to prevent irritation from fiber debris
8.FAQ
Q1: How long is the service life of the ceramic fiber module?
A1: 5-8 years under normal working conditions, and can be extended to 10 years in a non-corrosive environment
Q2: What should be paid attention to before use?
A2: Check the anchor welding firmness 6, and avoid the module from getting damp or stepped on 3
Q3: Is the density of the ceramic fiber module better?
A3: No, too high a density may increase the heat transfer, cause the surface fiber to break, and lead to the decline of thermal insulation performance. The normal density is 220kg/m³
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