Patent ID: 8269134

Claim:
A DC steam plasma torch comprising: a front section comprising a first tubular mount and a first tubular electrode attached to the first mount, together defining a first axis and defining a first internal coolant channel and a co-axial first external coolant channel; a middle section comprising a second tubular mount and a second tubular electrode co-axially connected to the second mount, thus defining a second internal coolant channel and a co-axial second external coolant channel; a rear section connected to the second electrode, and comprising an opening in a rear end of the rear section and a window frame mounted in the opening and a window provided in the window frame; a helical coil configured to generate a magnetic field; a DC power supply with a negative high voltage terminal thereof connected to the helical coil and a positive high voltage terminal thereof connected to the first electrode; a steam generator; a first swirl generator provided between the front and middle sections to receive primary steam working gas from the steam generator and generating a swirl of primary working gas; a second swirl generator provided between the middle and rear sections to receive auxiliary steam working gas from the steam generator and generating a swirl of auxiliary working gas.