[Default] On Thu, 25 Oct 2012 12:06:40 +0100,Steve Taylor <[email protected]> wrote:
>On 25 October 2012 11:59, Alex English <[email protected]> wrote: >> matter. When cutting with acetylene and oxygen, if you momentarily snub the >> torch and extinguish the flame the gasses can fill a closed container and >> then ignite on an ember with dangerous yield. I did something similarly daft and the detonation blew out the torch flame, gases refilled the cylinder ( fire extinguisher with wood debris from a previous experiment) and it repeated, about 10 loud cracks like an assault rifle before I turned the gas off, I don't think my ears have ever recovered. My biggest TLUD was 2 205 litre barrels brazed together. One was an old lubricating oil drum which cut fine with a small fire from the residual oil. the other had been used to drain petrol contaminated diesel from a car that had been miss filled. It was mostly diesel but as the disk cutter pierced the top there was a whoosh and a blue flame from the oil bung, it chased me across the barn burning my arm as it rolled by. >> > > >I plasma cut them with no problems. Fill with water and bleach solution >(destroys the mercaptans), drain and cut with 20,000 degree gas Why drain, wouldn't it be safer to keep the tank filled to just under the cut? AJH _______________________________________________ Stoves mailing list to Send a Message to the list, use the email address [email protected] to UNSUBSCRIBE or Change your List Settings use the web page http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists.org for more Biomass Cooking Stoves, News and Information see our web site: http://www.bioenergylists.org/
