List: Here is the video that Das had previously promised. Ron
----- Forwarded Message ----- From: "Agua Das" <[email protected]> To: [email protected] Sent: Tuesday, January 17, 2012 1:38:38 AM Subject: Re: [Stoves] Inverted top lit updraught Here is the link to the Bronze melter video http://www.youtube.com/watch?v=t08tj4NWUQY&feature=youtu.be Das On 1/16/12, Agua Das <[email protected]> wrote: > Cast Iron melting with wood > > A wood fueled gasifier engine generator carbon arc can easily melt > steel to pouring temperatures. > > Torrefied wood has heating value close to coal. Torrefied wood as a > cupola fuel should be able to melt steel, however the high hydrogen > content torrefied wood fuel may cause hydrogen embrittlent and > porosity. Metallurgical coke is coal which has been heated to reduce > the H2 content. > > Higher temperature char isvery low in H2 would make a good cupola > fuel, especially if it is briquetted for a larger fuel lump size > needed for hotter metal temperature. The resulting steel should be > higher quality than with torrefied fuel. > > I have successfully poured cast iron using acetylene to make an Imbert > "V" hearth insert, however it was very hard on my refractory. > > Temperatures inside a char bed can easily burn off steel, stainless, > or inconel air nozzles. > > The ejector is a good distance from the fuel bed to protect the ejector > nozzle. > The ejector creates suction to move fuel gas and controlled secondary > air to produce a compact premixed flame with full control from > reducing to oxidizing melting conditions. > > Das >
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