New to the forum, thought I'd jump in.
Like a few of you, I have been searching for what I could about the Gasification, but I am trying to get in to casting and melting, no smithy till I come across a good anvil. Start out easy then work my way up.
I came across the Dasifier, and I got nosey, so I called Das. (yes, the phone number still goes to him) He told me that he has a DVD for sale for about $20, but he sent me an email with some pictures and some details of the "plumbing".
from email:
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Here are a few photos of the bronze melter in action.
The fuel is garden path wood chips.
You can see the high pressure air line 1/4" copper.
The ejector/aspirator is made from 1/4" copper tubing fused shut on the end. Insert a wire to measure the depth of the clear passage. Drill out 1/8mpt X1/4 compression the fitting nut and collet 17/64" so that 1/4" tubing can slip through the fitting. Grind the end of the closed tube to fit thru the drilled out compression fitting. Drill a very small hole 0.010" or #80 drill into the wall of the tubing near the tip with the hole at right angles to the tubing. Braze or weld a 1/8 fpt coupling at right angles to the gas inlet pipe just opposite the combustion air inlet so you can observe and remove any clinker deposits through the combustion air inlet. Drill thru into the gas inlet pipe. Install the drilled out compression fitting. Insert the copper ejector so the hole is at the centerline of the gas inlet pointing into the burner. 150 psi air will give you a good suction. You can also introduce propane instead through the ejector. Fine tune your alignment for best suction.
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see photos
Then I emailed the Youtube video guy, and am currently waiting for pictures of the inside of his set up for the baffle, and what the superheating of air looks like. He is quite busy, back and forth from China and Indonesia setting up manufacturing of his stoves. I will post them when I receive them.
I currently have a large assortment of large food cans for my to be burner. I have a 20 gal drum already cut for my furnace, but as I can't afford the commercial 3k refractory, I'm going to make a small one out of 2 of the food cans with furnace cement/perlite just to do some small melts. Would have already started, but I'm waiting on the pics from youtube guy, and I keep forgetting to go get the refrigerator air compressor from a friend of mine. And I still have a problem figuring out how to adjust the updraft, can't really tell from the pics.
Hope that my post will help someone, Will be posting my pictures of set up when completed, probably on one of the casting sites, but will link here too.