Honeycomb ceramic heat accumulator for steel rolling
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Refractory Material Is Used For The Steelmaking System
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Honeycomb ceramic regenerator is widely used in energy-saving technology of industrial thermal equipment, which can improve the efficiency , reduce the energy consumption , increase the output and improve the quality of industrial thermal equipment, is an important and effective means to solve energy and environmental problems. The cross -sectional holes of honeycomb ceramic regenerator are mainly square and hexagonal , and the holes are parallel to each other. The structure greatly reduces the resistance of the gas hole flow and greatly improves the heat transfer efficiency of the single hole volume of the Regenerator.
Functions:
1. reduce heat loss of exhaust gas, maximize fuel utilization, reduce unit energy consumption
2. improve theoretical combustion temperature, improve combustion conditions, meet the high temperature requirements of thermal equipment , expand the application scope of low calorific value fuel , especially blast furnace gas,
3. improve the utilization ratio of fuel calorific value, reduce equipment investment;
4. reduce thermal equipment emissions per unit product emissions and harmful gas emissions , reduce air pollution , improve the environment.
Application:
honeycomb ceramic regenerator with low thermal expansion , large specific heat capacity , large specific surface area , small pressure drop , small thermal resistance , it is widely used in the high temperature regenerative combustion (HTAC) technology of the gold treatment machinery industry , which combines the recovery of waste heat from flue gas with the technologies of efficient combustion and reduction of NOX emission , in order to realize the ultimate energy saving and reduce NOX emission , the main application range is: iron and steel plants , waste incinerators , waste gas treatment thermal equipment , chemical plants , smelters , powerplants , power industry boilers , gas turbines , engineering heating equipment , ethylene cracking furnace , etc.
|
项目Item |
Mallite |
Corundum mullite | Corundum | Zirconium |
CHROMIC |
|
Al2O3,% |
50-65 |
65-72 |
72-80 |
65-70 |
65-70 |
|
Fe2O3,% < |
1.2 |
1.0 |
1.0 |
1.0 |
<1.0 |
|
K2O+Na2O+Ca2O |
1.5 |
1.2 |
1.2 |
1.2 |
<1.2 |
|
volume（Kg/cm3） |
0.6-0.9 |
0.7-1.0 |
0.8-1.2 |
0.9-1.15 |
0.9-1.15 |
|
coefficient of thermal expansion（x10-6/C） |
4-5 |
4.5-5.2 |
4.2-5.0 |
4.5-5.0 |
4.5-5.0 |
| Thermal conductivity W/m-km |
1.1 |
1.0. |
1.0 |
1.0. |
1.0 |
| Normal temperature compressive strength Mpa (A direction) |
23.0 |
23.0 |
26.0 |
23.0 |
25.0 |
| Normal temperature compressive strength Mpa (B direction) |
5.5 |
8.5 |
9.5 |
5.5 |
5.5 |
| Maximum operating temperature (℃) |
1350 |
1450 |
1550 |
:1550 |
1550 |
Key words:
Honeycomb ceramic heat accumulator for steel rolling
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