I asked for some help with my furnace design for melting aluminum a week ago and got some good advice from this group which I am following. In my 18" diameter tank I've decided to go with 1" of Cera blanket as the outer layer and then 3" of castable refractory up against that. I've seen other designs on the web doing this and they also seem to stop about 2" from the top with the fiber blanket and cover with the castable refractory. This in effect buries the fiber blanket inside the refractory. Is there any problem with this i.e air space in the blanket being trapped inside with no where to go? I could leave the refractory cover off the blanket but then it seems like a good idea to protect it from potential spills, etc. and it will look better covered. What do you think?
- posted
19 years ago