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jeremy13
05-06-2010, 11:23 PM
I built this waste oil burner to heat up and melt aluminum. Got the main parts from e-bay 65.00 consisted of oil pump motor and fan in one unit. But no fan shroud so I built one. I'm pre-heating the oil with a stainless coil of 1/4 tubing then to the nozzle. Now I clame to be A propane god but oil burners are more of a northern thing for this Texas boy. So I have A few questions. I getting some souting on the heating coils no smoke. And when I close off the supply air a little it burns brighter more white fire is this what I'm looking for?
http://i40.tinypic.com/16idxq8.jpg
http://i39.tinypic.com/2l24qx.jpg
http://i43.tinypic.com/f4nvuu.jpg

jeremy13
05-06-2010, 11:24 PM
http://i43.tinypic.com/2rr0y77.jpg
http://i44.tinypic.com/34hc4mw.jpg
I still have to wire it up and make it look good!

MTNGUN
05-07-2010, 12:20 AM
I don't know the answers to your questions, but I'm impressed that you designed and built that. Neat.

alanganes
05-07-2010, 07:24 AM
I built this waste oil burner to heat up and melt aluminum. Got the main parts from e-bay 65.00 consisted of oil pump motor and fan in one unit. But no fan shroud so I built one. I'm pre-heating the oil with a stainless coil of 1/4 tubing then to the nozzle. Now I clame to be A propane god but oil burners are more of a northern thing for this Texas boy. So I have A few questions. I getting some souting on the heating coils no smoke. And when I close off the supply air a little it burns brighter more white fire is this what I'm looking for?


Wow, nice work for a first design! I make no claims to being an oil burner god, and especially not burners for waste oil, but have seen and worked on my fair share of home heating oil burners. Lots of them up here in New England. The flame you have going there is much more forceful (higher air velocity) than you typically see but is probably what you want for your application. No smoke is always a good indicator with oil, some amount of soot is unavoidable. I would think that is especially true with waste oil, the few waste oil burners I have seen all seem to collect some of that crusty stuff you have on your coil.

I think you are right on track. The brighter, whiter flame you get when you choke the air off a bit is probably what you want. I'm guessing you won't have much trouble melting aluminum with that thing!

What are you using for a nozzle? I assume you are using spark ignition, are you using standard heating burner electrodes? More details, please!

Nice job!

-Al

jb-mck
05-07-2010, 07:29 AM
I'm not an oil guy either but have been in the propane/butane business for 25 years. I suspect the oil is coking on the tubes leaving carbon deposits. I look forward to seeing the finished pictures.

Duffy
05-07-2010, 09:06 AM
The sooting on the coils is proobably because the coils are relatively cold, since they are full of liquid oil. Dont suppose it matters much. You might cut the oil feed a smidgen and see if the flame goes a little blue. I suspect that the air/fuel ratio is still not optimum. At optimum, you should easily melt brass and bronze, and with a bit of time in the pot, iron.
A really crude waste oil burner, that is sometimes used in pottery kilns, is a drip of oil into the air stream that impinges on a hot fire brick. The system is started with kerosene, and when the brick is hot, switched to waste oil. Any oil works, just changes the aroma of the kiln. These kilns get hot enough, by the way, to "salt glaze" pottery. That means that the common salt tossed into the kiln evaporates and condenses on the pots. Duffy

jeremy13
05-07-2010, 09:40 AM
Thanks' for the encouragement guys. I am using the or a factory heating oil nozzle. Got A 2.00GPH at 45DEG solid cone. I tried the one that came with it 0.98GPH 80DEG It just shot a stream. If I maxed out the pump presser it would atomize but not a good pattern. You have to pre-heat the oil before it will burn so I'm heating the coils with a disposable propane torch first then turn on the burner and it will light a stay burning. I tried lighting the cold oil and just the oil that got sprayed throe the flame would burn but not good and would go out when flame was removed. I didn't get the high voltage coil with the eBay purchase but I was thinking of trying one of my neon sigh transformers for a test. From what I have found on the net you have to heat the oil ( used motor oil) to 170 to 180DEG and higher if you want to run synthetic oil.

Bill Pace
05-07-2010, 10:11 AM
I'm a Louisiana boy here and like you, oil burners are greek to me, and, like you I am pretty familiar with the propane burners. (Gingery got me started in this stuff;))

That is a really cool apparatus youve rigged up there, get the kinks out and it oughta do cast/steel...

Sounds like you've already done research, but just in case you missed it, theres the "go to place" for this kinda stuff --

http://www.backyardmetalcasting.com/forums/

madman
05-08-2010, 07:52 AM
I built one years ago, (its still sitting in garage) I used a length of black pipe with fittings each end for the predelivery oil to burner. i screwed in a diesel truck oil pan heater for oil preheat (cant remember the temp renge 180?) and also a air orifice in oil orifice Nozzle. I also utilized a acetylene regulator for air control when it was going it would create a enormous flame , Also used two large propane tanks plasma cut holes and built a copy of sorts of the double barrel stortz Heater. This thing heated 3000 square feet for 2 years. (for free) Now I have a heater system with water in floor which smells a lot less. But i liked the flames and noise the old heater used to make. You did a nice Job.

jeremy13
05-08-2010, 10:20 AM
I wanted to stay away from the air siphon type burners. An air compressor would just be one more thing to pack around. I did say I wanted to melt aluminum but I didn't say wear from. This will be used to separate the tail fins from mortar and rocket projectiles. Like in other posts ( punching holes in steel ) my second job is to demill unexploded ordnance and recycle them. The scrap mills don't want any thing that looks like a bullet or rocket. We cut solid steel 90mm tank practice rounds in half and that includes the 40mm all aluminum rounds. Texas air quality will allow us to burn up to 4gal. of waste oil per-hour with out any permits. So this is where I'm heading with this. We also have to flash all frag or projectile parts for 30min at 600deg. Before it go to the mill for recycling. The new thing will be to cook-off 20mm rounds that wear picked up at the range some will be HE and pop. That should make it interesting!!! It will be like a big pop corn cooker. I'm not sure who's going to look in side to see if their all popped. That will be the new guys job. :D

jeremy13
05-08-2010, 10:27 AM
double taped it

jeremy13
08-03-2010, 12:11 AM
I finished the burner a while back and thought I posted pix but guess not. So hear they are I took these to day. The in side of burner box is hot it's broad day light and you can still see the glow. The shiny stuff on the bottom is zinc and aluminum.the basket is 3'X31/2'X5'. This is mostly bomb fragments and fins from mortars.
http://i25.tinypic.com/xqeyhu.jpg
http://i31.tinypic.com/345bp7b.jpg

dp
08-03-2010, 01:24 AM
I've always been intrigued by the simplicity of the Babington Burner. No preheat needed, and it can be gravity feed:

http://www.3cyl.com/bd/

All you need is a door knob and an air compressor.

The burner is simple but the hardware to make it work can be quite elegant.