Plasma burners
AssigneeSINTEF (Selskapet for industriell og teknisk forskning ved NTH)
InventorsOla S. Raaness, Jon A. Bakken
Life of this patent
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Abstract
Plasma burner provided with an electrode holder for the support of a cently arranged electrode and an outer electrode, a device for applying an electrical voltage for producing an electric arc between the electrodes and a device for the supply of gas to the electric arc area of the electrodes. The electrodes constitute a continuously consumable electrode system in which the outer electrode has the shape of a pipe while the other electrode is pipe- or rod-shaped and coaxially arranged within the outer electrode so as to define therebetween a passage of annular cross-section. The electrode holder is designed to conduct gas through the passage forwards to a front, free end of the electrodes where the electric discharge occurs from the end of the inner electrode.
Claims8
Plasma burner comprising a centrally arranged electrode, an outer electrode and an electrode holder for the support of said electrodes, means for applying an electrical voltage for producing an electric arc between the electrodes and means for the supply of gas to the electric arc area of said electrodes, the electrodes being made of a non-melting and subliming material to constitute a continuously consumable system in which said outer electrode has the shape of a pipe and said centrally arranged electrode has a shape selected from that of a row and a pipe and is coaxially arranged within said outer electrode so as to define therebetween an elongate passage of annular cross-section, and said electrode holder being designed to conduct gas through said passage forwards to a front, free end of the electrodes where the electric discharge occurs from the end of said inner electrode.
Dependencies are inferred from the claim text.