Metal Casting Zone

Here's a waste oil burner I made last summer. It's about the same, oil comes down the center tube and I have a 120 CFM blower. I have only used it to fire the furnace and the last shot is where I turned the oil up to see some flame. I pre-heated with propane. On a second fire I couldn't get the heat up and figured I didn't pre-heat enough. I had a lazy flame and oil in the bottom of the furnace. Yuck!!

Jammer wrote:


Here's a waste oil burner I made last summer. It's about the same, oil comes down the center tube and I have a 120 CFM blower. I have only used it to fire the furnace and the last shot is where I turned the oil up to see some flame. I pre-heated with propane. On a second fire I couldn't get the heat up and figured I didn't pre-heat enough. I had a lazy flame and oil in the bottom of the furnace. Yuck!!rather than drip feed your oil i would be "spraying" it into it as you havent made provision for a "flare" in your design you are using the refactory lining as a "flare" so yes you would need to have the lining red hot before useing oil.if you could set a small fire (bbq charcoal)in the bottom to provide a ignition source in the early stages or a gas "pilot" burner or something to ignite the oil fumes ,csat iron in a graphite pot wouldnt be out of the question .

Here's one I'm playing with now. It's a siphon feed waste oil burner. It uses about 20 psi air to pull and atomize the oil as it exits the end. No pre-heat is nessasary unless your trying to fire it in below freezing temps. The weather has been so crappy I haven't got to try it much. With a good blower it should reach cast temps easily. I made the little turbo to help spin the air. These are Hago nozzles and adapter, usually on e-bay and cost about $50 US.

Jammer wrote:
Here's one I'm playing with now. It's a siphon feed waste oil burner. It uses about 20 psi air to pull and atomize the oil as it exits the end. No pre-heat is nessasary unless your trying to fire it in below freezing temps. The weather has been so crappy I haven't got to try it much. With a good blower it should reach cast temps easily. I made the little turbo to help spin the air. These are Hago nozzles and adapter, usually on e-bay and cost about $50 US.

thats more like it! it may tax your air compressor tho. if it does you may want to consider a pressurised container containing your oil and just use one line into your furnace. similar to "airless" paint spraying .( im a retired house painter!)

I built a waste oil feed the other day and first attempt has seen me struggle to make enough temp to melt aluminum.I think it is because I too was using a hair dryer and the volume of air is too low.

I am searching around for an old vacuum cleaner to salvage the blower out of for the next attempt.

I used a 4.5kg gas bottle as the fuel cell and just for ease of use built a siphon tube into so I dont have to turn the cylinder upside down to get the oil to feed. I add 1psi of pressure from my compressor to get the feed going.

I will post up some pics when I get the kinks ironed out.

sounds good horndog. keep us posted and pics are very much appreciated as its the only way we have of seeing what you are up to!!! and help if we can. oh and welcome to the forum!

I did get that Hago burner fired up. It put out a very intense heat. I didn't have the piping right so I didn't have good air flow from the blower. Still it was very hot!! That nozzle was on loan to me and I had to send it on. Now I can't find anyone with them in stock.

This shows the set up a little bit. I'll be glad when my cameraman is out of school.
I just put the blower hose up to the opening next to the piping.


This picture is at the highest temp. I was doing a little experiment, more on that latter.

how big is your tire ? tuyere ? something like that lol

My (spare)tire is about 38" and growing.

My tuyere is 2 1/2" id.