Patent ID: 6744006
Filing Date: 2004-06-01
Classification: H05H,Y10S

Abstract:
A twin plasma torch assembly comprising:(a) at least two plasma torch assemblies of opposite polarity supported in a housing, said assemblies being spaced apart from one another and comprising (i) a first electrode, (ii) a second electrode which is or is adapted to be spaced apart from the first electrode by a distance sufficient to achieve a plasma arc therebetween in a processing zone; (b) a passage for introducing a plasma gas into the processing zone around each electrode; (c) a further passage for introducing shroud gas to surround the plasma gas; (d) a feed tube for supplying feed material into the processing zone; and (e) a power source for generating a plasma arc in the processing zone; characterised in that distal ends of first and second electrodes do not project beyond the housing.