The Shop > Metal Stuff
Sawed off cupola
vtsteam:
Thanks both of you! Perhaps another cupola some day, and maybe even a try or two with this one in a few months time if I thought there was value to it.
This furnace will continue to melt iron at present as an oil burner. We'll see where we go with that -- plenty of scope for improvement there. That first pour must have been beginner's luck! Anyway I'll open another thread for it as an oil burner if anything interesting comes up.
Cheers! :beer:
tom osselton:
Vsteam have you tryed a bigger blower or maybe another vacum one for each tyure by the look of your pic it came close to melting it may just be low blast presure.
vtsteam:
I suppose it's possible Tom. But charcoal embers were flying out of the top as is -- I have a burn on my ear to prove it.
Maybe more air rather than more pressure. One possible way to do that would be to leave the lid off to reduce back pressure.
I also don't think the well was hot enough. not sure what to do about that except lower the tuyeres.
One more thought -- charcoal is supposedly hotter burning than coke. The problem is that it burns so fast. Maybe larger charcoal would be better. I tried to mimic coke size (3/4") for this size furnace (7") but maybe that was a mistake. Larger pieces burn more slowly, plus they let air through more easily. Maybe that would compensate for the charcoal characteristic of too much too quickly. A flash in the pan...
Lots to think about.
Meldonmech:
What a fantastic effort, you have achieved a great deal and aquired invaluable experience. I know you must be disheartened but am convinced you will succeed after you have had a break from it. Can't wait for your next attempts. The build has been both interesting and informative.
Well Done David
vtsteam:
Thanks so much, David! :beer:
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