there is an extractive metallurgy reactor and its core is in 1000°C. there is some heat supplying flames around the core and i want to apply refractory materials around them for the purpose of heat insulation. in the outside of the refractories there is also a steel jacket.
based on above explanations which of the refractory materials can satisfy our goals?
The answer to your question depends on the exact chemical atmosphere and monetary budget. Here is a refractory brick manufacturer with several offerings, generally made from alumina, silica or a mixture of the two called mullite:
https://www.krefractory.com/insulating-brick/
These are intended for furnace construction and have very low thermal conductivity. They are also mass-produced for the steel industry, which should keep cost low. Just make sure they are compatible with your atmosphere.
Hello. A lot of refractory materials withstand 1000 degrees. It is necessary to clarify:
1. Is this the maximum or operating temperature?
2. Does cost matter?
3. Does molded products (brick) or unshaped (backfill, concrete, cotton) matter?
4. Is there contact with aggressive environment?
5. By how many degrees is it necessary to lower the temperature of the outer layer, and what min/max is the thickness of the insulation supposed to be?
Since a lot of materials may fit the temperature requirement you've mentioned, additional information (atmosphere, process duration, budget, etc.) is required. In principle, you need select between the existing quite wide spectrum of ceramics: alumina, zirconia, silicates, etc. etc.
- Badges
- Science topic
- Similar topics
- Engineering
- Materials Engineering
- Annealing
- Metallurgy