Method and apparatus for connecting a plasma generator to a reac

Details Method and apparatus for connecting a plasma generator to a reac Method and apparatus for connecting a plasma generator to a reac

1984-03-30

1986-09-09

Paschall, M. H.

Electric heating

Metal heating

By arc

156345, 219121PE, 219121PG, B23K 900

Patent

active

046111107

ABSTRACT:
A method of and apparatus for effecting rapid, reliable and risk-free, pressure-tight connection of a plasma generator to a reactor, such as a shaft furnace for metal oxide reduction. First electrical contact means arranged on a plasma generator, substantially enclosed by a cover, automatically connect the plasma generator to stationary second contact means when the plasma generator is moved by remote-control to a fully installed operating position from a partially installed sealing position in which the plasma generator has its front end partially inserted in the reactor tuyere and seals the reactor. A remote-controlled valve, which seals the reactor from the surroundings when the plasma generator is in an outer completely retracted position, is opened once the plasma generator is in its sealing position, after which the plasma generator is moved to its operating position. Remote-controlled locking bars are caused to press and lock the plasma generator to the reactor in order to effect pressure-tight connection, and at the same time the locking bars connect the plasma generator to the return conductor to the current source, thus providing extra security against the current circuit being connected before a pressure-tight seal has been achieved.

REFERENCES:
patent: 3705975 (1972-12-01), Wolf et al.
patent: 4336438 (1982-06-01), Uehara et al.

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