Burners From Technical Ceramics In Constructions Of Gas Furnaces And Fuel Industrial Furnace
Burners from technical ceramics in constructions of gas furnaces and fuel industrial furnace
Burners from technical ceramics have been successfully proved in constructions of gas furnaces and fuel industrial furnaces with liquid fuel (for example, burners of impulse type and recuperative burners), and in households. Burners from technical ceramics are also used in the process of “indirect heating” when combustion gas should not contact with product. For example, the flame tubes, radiation tubes that conduct heat through radiation.
Basic properties of the material:
| Properties | Brand of material |
| | SCR-Si1 | SCR-Si2-HP | SCR-SSCR-S |
| Composition | SiC+Si | SiC+Si+C | SiC |
| Density, g/sm3 | 3,05-3,07 | 3,00-3,05 | 3,10-3,15 |
| Isolated porosity, % | 0 | 0 | 2 |
| Hardness (at SiC), GPa | 25-30 | 25-30 | 25-30 |
| Flexural strength, MPa | 320-350 | 270-300 | 380-410 |
| Compressive strength, MPa | 3300-3500 | 2800-3100 | 3000-3500 |
| Thermal conductivity at 20-100°С, W/mK | 110-120 | 100-130 | 100-110 |
Coefficient of linear thermal
expansion at 20-1000°С, 10-6 К-1 | 3,4-4,9 | 3,5-5,0 | 3,0-4,6 |
Maximum operating temperature
Oxidative environment
A reducing or inert environment | 1350
1350 | 1350
1350 | 1350
1350 |
Advantages:
- resistance to corrosion;
- excellent heat shock resistance;
- stability of the form even in case of maximum operating temperature;
- very good heat conduction;
- gastightness;
- low weight;
- high level of reliability and operation economy.
Reaction sintering silicon carbide burner is an ideal burner for tunnel kiln, shuttle kiln and roller kiln. It is also widely used in industrial furnaces with open fire direct heating system and radiant tube indirect heating system.
Reaction sintered silicon carbide heat exchange tube, inner tube and outer tube of reaction sintered silicon carbide radiant tube are assembled for heat radiation indirect heating system. Reaction sintering silicon carbide indirect heating system is suitable for steel, stainless steel and non-ferrous metal industry roller kiln, trolley kiln and other industrial furnaces.
SiC atomizing nozzle is the key part of flue gas desulfurization and dust removal equipment in thermal power plant and large boiler. It has been widely used in desulfurization and dust removal devices of thermal power plants and large boilers.
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