I have a lot of this stuff it’s pretty thick. I have metal to weld fins I think. I’d just be heavy. it’s not quite 2in inner diameter dose that matter? I have some bigger stuff that it fits in it’s probably 3in.
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That is some really thick pipe. With the smaller pipe inside the larger pipe it would make some great flute nozzles for a gasifier.
I think I would look for some pipe that was half the thickness you have there.
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Conduit pipe works good for hopper tubes I bet. It’s thick enough to weld reliably but thin enough to shed heat and not weigh too much.
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My only worry with those drums is collapsing under the vacuum. I have had a couple straight wall drums for making charcoal and I closed the lid too tight, came back next day to see them collapsed.
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Air nozzles? That would be awesome. Do you mean I could cut the big pipe into rings that the small pipe would fit in and maybe weld a washer or cap on the end of the small pipe so it can come out easier? Could I thread the washer or cap holes and add easy to unscrew tough nozzles?
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I might be able to make metal rings from rebar or something to reinforce the inside of the smooth walled drums with a internal iron cage. I found some other drums but they aren’t the type that clip together but are flared. I could probably cut a hole in the top and bottom and join them together some way. I think I have some conduit pipe and galvanized post that might work for the hopper.
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I’ll have to maybe share a few drawings I’ve done trying to figure out the scale of how big the Gasifier will be. Also how I’d like it to work. I have a idea for a removable internal baffle for the heat exchanger. Like I said in the beginning I wanted a clip together easy to dismantle unit. I’m still thinking about it.
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The pipe would slide inside of the other pipe with holes drilled in it. This is for a flute nozzle design. Not to be confused with a firetube down draft design gasifier.
Trying to reinforce a smooth wall light metal barrel is difficult. My plastic smooth wall hayfilter has a tendency to collapse under the vaccum of the gasifier system when the engine 5.2 liter is drawing on it. 40 plus vaccum is a lot of vaccum. I have wooden discs inside the barrel with the hay to keep it from collapsing. Plastics are flexible stell is not , it will bend and not go back in to place. So strong rigged barrels are needed in a gasifier. The salvage or oil barrel with out side rings to make them rigged and strong are needed. The heavier gage steel is better.
It would be a shame to build a gasifier with all the hard work a have it collapse.
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Well I might be able to get these other barrels they just don’t have a open top but I think I can make something work. I think the truck I have draws a lot of vacuum so I’d like to see it not collapse in.
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I’d be nice to find some old well pressure tanks or 2ft wide propane tanks. Those would probably last forever.
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Those should be perfect if they have a removable top.
Otherwise you’ll need to splice the tops from those other drums into the ribbed drums.
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I’m using that type of barrel on 2 of my builds. Lots of ways to make them have top fill hatch.
And seal the two barrels together.
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I have this big piece of well pipe I can use for the heat exchanger.
I was trying to figure out how it would work. I wanted to make a baffle that can be removed easily.
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Greg since this is on a public side discussion it would be a good idea to remove the drawing.
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Sorry. I didn’t realize
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It’s alright, have you already bought the book? Once you get Premium Side access you can post WK gasifier related stuff on there.
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I’m waiting to go to my uncle’s house that’s far away, I might be able to get a barrel for free there. I’m just waiting to buy the book until I have some barrels. I think I can manually flare the edge.
They have this fancy tool
But I can also make my own maybe.
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To be honest I’ve never needed one. I just butt weld it. You can get pipe vise grips made for butt weld joints.
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Oh yeah you are right. I’d just need to cut a ring out of one of the barrels and and butt it against the bottom or top of another drum weld it then cut out a hole.
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