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Thread: The Charcoal Foundry
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12th April 2007, 10:33 PM #16
So, you got that sorted at least.
Another option if you happen to get roped in by the melting bug is a burner, either gas or liquid fueled. Problem is that the charcoal furnace Uncle Dave describes doesn't work too flash with a burner.
I think I will end up making a waste oil burner soon since the kero jobbie I have isn't as 'easy' as I would like it to be. The kerosene burner is good, but it's just a bit of a pain. With any luck, I should be able to get a waste oil thingy to work without needing a degree in thermodynamics to drive the thing.
Propane/LPG is by far the most user friendly, but you pay for that with your wallet.
Interested?
(Oh yeah, just quietly I am re-making my lathe. Just a tad bigger than Mr. Gingery's one, like about 50% and heavily modified. Finished about half the patterns, and some more siple ones to go, but some will hold of until I cast what I got. Thankfully, ally isn't a problem anymore.)
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12th April 2007, 10:40 PM #17
G'day All,
Propane in this present day costs a heap.....it's up to you guys but a google on Babington Burners could give you a new perspective on waste oil burners.
Sump oil......fine orifice........air pressure.....melt metal.
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12th April 2007, 10:47 PM #18
I'm interested in your experiments with the used oil burner(have 4#44's full of it,it would be good to use them up)Which lpg burner plans have you got?I have Mike Porters book-on self aspirated lpg burners for forges and furnaces,regards,
Here is a link to the book >http://www.amazon.com/Gas-Burners-Fo.../dp/1879535203Last edited by forge; 12th April 2007 at 10:52 PM. Reason: add link
forge
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12th April 2007, 11:00 PM #19
G;day Forge,
Same book...built #1 and #2.........but I can't afford to run them.
Haven't built a Babington Burner yet...but it seems like the way to go.
Still using charcoal and on non-pension weeks.......BBQ heat beads
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12th April 2007, 11:38 PM #20
Speaking of charcoal,seen the Indian country people making char out of farm veg waste, recently seen a lifestyle/cooking show (food )on tv Chinese country kitchen using what looked like charcoal discs .They were round(80-100mm) and had evenly spaced holes( 4-6) Perhaps they been pressed ,probably manufactured from some farm waste.Has anyone know of these?
Here is a link to the indian char>http://www.arti-india.org/content/view/44/42/
````````````and some chinese charcoal briquette>http://www.agitc.cn/Charcoal-Powder-...ing-Plant2.htmforge
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12th April 2007, 11:46 PM #21
Thanks for the links Forge.....
Makes it easier.....especially during fire restriction season
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13th April 2007, 09:43 AM #22
I saw a design for a waste oil burner that uses a copper or brass sphere (size of a golf ball I think- it was an off the shelf item but I can't remember what it was used for). The oil drips down onto it from above. It has a hole going through the middle through which you blast air. The oil runs down over the sphere and what isn't vaporised by the air stream drips into a container to be re-used.
Not sure what the idea of the sphere was, something to do with thinning the stream out I suppose.
Propane is definately out for me. Too expensive around here. A 45kg bottle is $90 delivered here.
I like the charcoal idea because it will cost me nothing but time. Unfortunately I don't have a lot of that, either. But I have some spare time and no spare money. There's no way I would get support from the ministry of finance if these projects cost anything to run. The conversation would be like this:
Me: I want some money to buy a bottle of gas to run my burner.
She: That's nice. What's it for?
Me: So I can melt metal to make stuff.
She: Is it stuff we can eat? Can the kids wear it to school? Will the RTA take it in lieu of payment for rego?
Me: Umm, nope.
She: Ta ta...
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13th April 2007, 02:46 PM #23
Here is the burner design I was thinking of. Looks like it's a Babington Burner after all...
http://www.green-trust.org/2000/biof...on/default.htm
Now this idea I like. There's plenty of restaurants around here
What really pings me off is that about 4 years ago we chucked out a perfectly good fuel oil burner that used to heat the hot water at the old place. We ummed and ahhed about it for awhile but we were in clean-up mode, so out it went. I imagine it would have been perfect for this application...
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13th April 2007, 03:35 PM #24
G'day again Silent,
Yep, that's a definite Babington...some models I've seen have used very unusual spheres, such as ping-pong balls/golf balls and brass door knobs.
I didn't beleive them at first..but there's apparently no heat in that area.
Here's some more info......you've already got the fourth link I had
http://www.aipengineering.com/babing...ner_HOWTO.html
http://www.babingtontechnology.com/h...urner_work.htm
http://dragoneagle.50megs.com/metalw...babington.html
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13th April 2007, 05:21 PM #25
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13th April 2007, 05:27 PM #26
Wont be long before we get there too mate. It was $88 last year, $80 the year before that. Plus they charge a rental on the cylinders but that doesn't increase with usage. Of course it goes up every year too.
We only had a gas heater last year, so it was an expensive winter. In the throes of installing a wood fire now...
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13th April 2007, 06:19 PM #27
I just had one delivered today, cost $85.50. Bugga's are starting to get higher in price. I only use it for my cooking and go thru 1 a year
Cheers
DJ
ADMIN
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13th April 2007, 07:57 PM #28
I have used 3 types of fuel. Heat beads, coke & charcoal from the remains of where farmers had burnt of piles of trees. The charcoal burnt hot enough to do small forgings but didn't last long & spat out heaps of sparks. The heat beads were used for forging a 300 mm ring out of 25mm x 150mm stock approx. This also worked well but I wouldn't have liked to try welding with it. I now use nut coke I purchased from the coke works in Bowen a few years ago & this is good to use.
Ray
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13th April 2007, 11:54 PM #29
the chacoal foundry
Waste oil burners:here are some links:
url.http://www.abymc.com/
< >http://stephenchastain.com/books5.htm
regardsforge
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17th April 2007, 10:31 PM #30
Hey Silent - I just saw this thread so thought I'd put in a belated two bob's worth.
Charcoal is nothing more than more-or-less pure carbon that just didn't burn to CO2 for reasons I can't explain from 1st year chemistry. Anyway, you can often pick up bags of it after a bushfire (the old man used to send us kids out with a chaff bag after fires, to feed the farm forge). I can gaurantee you are able to melt steel with decent hardwood charcoal - we done it lotsa times - teenage boys, scrap metals, forge - fun! (But what the point of it all was escapes me now!!)
But best of all was good black coal, picked up from the railway line, back when the local puffer ran on the stuff - once you got that stuff going, you were really cooking!
Cheers
(from a very crude old bush blacksmith...)IW
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