Ok Guys
Step 2,
I have the Helium tank cut in half, trued up, cut the top off the tank and split down the side,
this leaves a ring that is about 6+" tall, to use as a wind screen/sheild and will direct the flames up the sides for about 4+".
I have the (top of the tank) curved section turned up side down and slipped around/up the walls from the bottom,
about 4" to direct the remaining heat to travel up the sides, and this leaves about 2" of empty space below the tank bottom,
where I will mount the LPG High pressure 4" diameter burner inside this ring.
There is about a 2+" wide opening for the bottom pour pipe, 4" long to exit the bottom ring,
with a 1/4" black pipe elbow pointing down, for filling ingot molds etc.
The valve is SS with a 60* bevel for the stem which will also have a 60* cone to fit inside the valve,
and the top will extend 1" above from tank bottom, and I will lap these 2 together just before final mounting.
There will be a triangle piece that comes out from the inside of the tank wall,
and the valve rod will be bored/threaded thru this piece, and go straight down to the valve top,
and be less than 3" out from the inside wall, to leave as much as possible of clear space,
for cleaning the dross/trash out etc.
I plan on adding a 1/2 to 3/4" wide x 1/8" band around the very top,
which will welded along the very top edge to the pot, and will have a 1/4" bail handle attached thru this top ring.
Some of the questions I am not sure about,
I can't decide,
If I want a push down thumb lever system with a spring return assist,
or a screw type system for controlling the lead output,
with 1/8" pour hole or slightly larger diameter, thru the valve exit,
I have 1/4" black pipe elbow pour spout that screws on the SS valve.
Will a 1/4" clear space around the tank sides, be enough to allow enough good heat to go up the 4" sides,
or would 1/2" space be better?
I have not attached anything together yet, as I am NOT sure which way to go,
or if I have the correct/enough dimensions for everything to operate correctly yet.
Any thoughts or suggestions will be greatly appreciated.
Tia,
Don