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| unc1esteve:
I have wanted a foundry for some time. I thought I would start with the burner. I will use waste vegetable oil as I have a source for good clean oil. I saw a video of a burner that was just a fuel line and a venturi. I made one but having no experience with burners I could not compare it to anything. After posting with vtsteam I made a kwiky burner for comparison. I started by collecting and filtering the oil. I first used a colander to remove the large particles. Then I used a flour sifter to remove smaller pieces. And then used the filter in the coffee pot. I bought a 48 cup perculator from the thrift store. I removed the valve and replaced it with a brass ball valve for a safety shut off. I am going to use copper tube for the fuel line but I do not have the proper size compression fittings. I used clear plastic tube now as I wanted to see the oil. The pot heats the oil very well. I removed one of the heating coils because I felt the oil was getting too hot. The oil must be heated for the burner to light. This includes the oil in the fuel line. Before lighting I drain the cold oil out of the line and make sure hot oil is right up to the burner. The pot will be well away from the furnace in use. It will have a drain valve right at the burner. A broken upright vacuum provided all the parts for a 2 inch blower. |
| DavidA:
If you type 'turk burner' into google you will find lots on these things. Here is one example. http://uk.images.search.yahoo.com/yhs/search?_adv_prop=image&fr=yhs-CND-002&va=turk+burner&hspart=CND&hsimp=yhs-002 Dave. |
| unc1esteve:
Have a fire extingisher handy and the area clear before lighting. The adjustment of the fuel nozzle seems to be critical in getting the burner to light. I have not found the right spot as yet. |
| unc1esteve:
I first made a burner of 1/8 pipe with the end extended as vtsteam did. This did not work well as it did not siphon. I made another one of 1/4 pipe. This works much better. Also having the coffee pot above the burner helps. I am getting the drip vtsteam talked of. Adjusting the nozzle affects this. Am going to play with the adjustment tomorrow. I have viewed some videos. Most show fire from a furnace and lots of adjjusting but not the details of the burner. Will look at the UK videos tonight |
| unc1esteve:
I reviewed the pictures DavidA posted. I found one that was similar to the venturi burner. I tried posting its address but it took a half of a page. The coffee pot broke again but I was able to run the burner with room temperature oil. I made the first nozzle from a cap instead of a plug. I thought that the 3/32 hole was not the correct length, too short. I made another nozzle with a longer hole but it made no difference. It seems the only adjustment that affects the flame is the distance the nozzle is from the mig tip as vtsteam mentioned. I made a venturi and a flare. The flare makes no difference at either end of the burner. If fitted at the flame end the venturi speeds up the air flow but puts out the flame. Fitted at the other end it restricks the air flow but makes a definite improvement in the flame and the heat. The burner will not work with the vacuum blower. If I blow a hard breath into the burner it will flame out. I am going to let the flame burn on a large piece of steel and see if it will burn more oil. If it does I will try the blower again. Need to move this operation outside. Once the nozzle is set this thing is a monster. I have no doubt it will melt case iron. It is easy to build and I would recommend it to any one that has a supply of waste oil. |
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