diesel fired melting furnace

  1. bigegg

    bigegg I drink and I know things. Its what I do.

    Messages:
    5,729
    Location:
    Leeds, West Yorkshire
    i'm going to be building a new furnace to melt some aluminium.

    after a cost/convenience calculation, i've decided that red diesel is going to be best for me at the moment:
    easier to store than charcoal.
    easier to transport than lpg.
    easier to source than WVO.

    I may add veg oil if i can get any cheaper than the 70p/l i pay for red diesel.

    i'm going to use a "pipe in a pipe" burner: air from a blower through the outer pipe, fuel through the inner.
    ive used + built one before, using old engine oil, so i'm familiar with use- and ive got the bits!

    is there anything specific i need to know about using diesel?
     
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  2. gaz1

    gaz1 Member

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    7,462
    Location:
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    i liked this one but you wont find it on youtube as the person removed it

     
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  3. brightspark

    brightspark Member

    Messages:
    25,744
    Location:
    yarm
    god that's crap using coal. and the pot stuck well out of the furnace .far better off using coke as its a lot hotter. the pot should be further in the furnace to retain the heat and just use a simple blower :)
     
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  4. bigegg

    bigegg I drink and I know things. Its what I do.

    Messages:
    5,729
    Location:
    Leeds, West Yorkshire
    i'm definite about using diesel...
     
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  5. gaz1

    gaz1 Member

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    7,462
    Location:
    westyorkshire
    have you got a video of your setup then ? brightspark
     
  6. brightspark

    brightspark Member

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    25,744
    Location:
    yarm
    no my brother does a lot of castings and I just sometimes help heres just one casting il get a few piccys of some more and the set up when he does some more I made a pattern for blasting pot grit valves and cast them
     
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  7. bigegg

    bigegg I drink and I know things. Its what I do.

    Messages:
    5,729
    Location:
    Leeds, West Yorkshire
    diesel...
    :rolleyes:
     
  8. brightspark

    brightspark Member

    Messages:
    25,744
    Location:
    yarm
    yep diesel waste oil propane or coke whichever works the best for u :)
     
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  9. gaz1

    gaz1 Member

    Messages:
    7,462
    Location:
    westyorkshire
    myfordboy as reference

     
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  10. gaz1

    gaz1 Member

    Messages:
    7,462
    Location:
    westyorkshire
    other reference doubleboost
     
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  11. bigegg

    bigegg I drink and I know things. Its what I do.

    Messages:
    5,729
    Location:
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    and vegoilguy. and "waste oil burners" and umpteen others which i've spent most of today watching. :hug:
     
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  12. Seadog

    Seadog Forum Supporter

    Messages:
    3,978
    Location:
    NE London - UK
    bigegg likes this.
  13. slim_boy_fat

    slim_boy_fat Forum Supporter

  14. Blackolive

    Blackolive Member

    Messages:
    246
    uk lancs
    years ago we had great fun smelting beer barrels, built a furnace using an oil barrel lined with plastic rammable fireclay, and used a datsun hear blower for the air supply. We used Coke nuts, courtesy of my mates dad's AGA supply. happy days
     
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  15. bigegg

    bigegg I drink and I know things. Its what I do.

    Messages:
    5,729
    Location:
    Leeds, West Yorkshire
    i started (still at school, mid 80s) with a u-shaped hole dug in the garden, coke from the coil oil, a 1950s cylinder vac. on "blow", a baked bean tin for a crucible, and bread tins for ingot molds.
    and old nuts + bolts as filler for the brass or lead ingots. :whistle:
     
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  16. AdrianH

    AdrianH Forum Supporter

    Messages:
    1,712
    Location:
    near Blackburn.
    Sorry a bit OT!

    I used to have a propane foundry at one time and did a few melts with it, I even managed to get it hot enough to do cast iron and that was frightening. In the end I gave it all away together with some drag and copes, but at times I miss it.

    I was wondering if anyone has tried using carbon arc rods off a welder to melt brass, copper and aluminium. I have seen a Youtube video where they use the arc between carbons to generate heat to melt things, but am talking as in the carbons striking the arc in the metal as in an arc foundry? I guess the amount of energy going in can never be that much from a domestic supply, but wondering if anyone has tried it with an old oil cooled set?

    I doubt an inverter set would cope.

    Adrian
     
  17. bigegg

    bigegg I drink and I know things. Its what I do.

    Messages:
    5,729
    Location:
    Leeds, West Yorkshire
    i tried it with a 120a buzzbox.
    running flat out, i couldnt melt even a bit of a 25x5mm aluminiun bar.
    scraps? -maybe in a well insulated "coffee tin foundry", but i reckon to melt a decent amount (say 1kg), yojd need 500a +
     
  18. vbottles Member

    Messages:
    131
    Location:
    yorkshire uk
    I've used an air fed burner using lpg and waste oil to make crucible steel (1400c).
    Started with lpg than added oil when furnace was hot enough.
    The oil I was using is pretty thick 110-120 so added some red diesel to thin it out to aid the flow down the feed pipe.
    I only did this a couple of times so can't offer any experience. But get the furnace hot enough with lpg to ignite your main fuel (diesel, waste oil, uranium etc).
     
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  19. CoValent

    CoValent Member

    Messages:
    76
    Location:
    Limerick, Ireland
    Do you mind sharing details of your burner, and how successful it's been? I looked at the vid posted by gaz1 above (the Myforboy burner) but the nozzle and mixer he uses comes in at about USD300 delivered, and that buys a lot of LPG!
     
  20. julianf

    julianf Member

    Messages:
    3,781
    Location:
    devon, uk
    Probably about £30 in parts to build this burner, and that includes a pumped fuel supply -



    I realise it's a bit on the fierce side, but it was just prototyping. Principle is fine for a smaller output.
     
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