JET-MELTING PLASMATRON Russian patent published in 2012 - IPC H05H1/34 

FIELD: electricity.

SUBSTANCE: invention relates to devices for heating of gases to high temperatures with the help of an electric arc and may be used in plasma-chemical, metallurgical processes, in particular to melt ferroalloys, destroy domestic and anthropogenic wastes, and also for research purposes. An electric arc plasmatron comprises a copper tube-like anode and a cathode of alternating section installed along the longitudinal axis and insulated from each other, besides, the anode is arranged in the form of a stepwise narrowing cylinder in direction of a gas flow with ratios of geometric dimensions: d₃/d₂,=1.5-1.8, d₂/d₁=1.13-1.17; 4.8<L₃/d₃<6.5; L₂/d₂=1.2-1.6, the cathode of alternating section with a confusor angle α=5-15 ^degrees, has a ratio of L₁/d₁=1.5-2 in the melting mode and L₁/d₁=2.5-4 in the jet mode of plasmatron operation.

EFFECT: increased resource of plasmatron operation and reduced material intensity of an anode.

2 cl, 1 dwg