blackspot

[Black Ink]

I think I remember not to long ago someone asking about a blackspot in thier NA forge and people were suggesting a blower well...One of my forges is a 10" I.D compresser tank with a 2" inlet vertical and I'm lucky enough to have an Industrial air mover for a blower.My problem is that I get a blackspot on the bottom of my forge,also I cant for the life of me get forgeing temps .I get just there but no cigar ,and if I add to much gas the flame goes carberised.I cant find a Cfm on the motor. Any suggestions TIA
Jason

[matt87]

So... it's a gasser? Home-made I'm guessing. I'm also guessing it's forced-air. Mor einformation would be useful

[HWooldridge]

It's a cold spot but how to fix it could come from several solutions. Choke the inlet, increase fuel consumption, lengthen the burner tubes, etc., are all possibilities.

[Ice Czar]

+ look at the angle on injection, combustion swirl\pattern in the forge and around the stock, investigate deflecting the combustion for a more even heat distribution \ higher turbulance

increase insulation \ heat retention

[Black Ink]

Thanks Ice all i have for turbulance now is a washer welded on the end of the outlet pipe, i was thinking of twisting a spiral and putting it in the outlet I wont know till saturday though . I need money for propane.