Vertical carbonizing furnace for use in the production of carbon

Details Vertical carbonizing furnace for use in the production of carbon Vertical carbonizing furnace for use in the production of carbon

1983-05-26

1985-06-11

Pellinen, A. D.

Industrial electric heating furnaces

Resistance furnace device

With internal atmosphere control

373128, 373 2, 373135, F27B 904

Patent

active

045233217

ABSTRACT:
A vertical carbonizing furnace for use in the production of carbon fibers is provided with a vertically extending conduit of hollow rectangular parallelepiped. The lower end of the conduit is immersed in water thereby making a water seal from environmental air. The conduit is also provided with a gas withdrawal outlet which communicates with the upper portion of the conduit through a gas feeding duct for reuse. The mixture of a vapor evaporated from the water seal and an inert gas is withdrawn from the gas withdrawal outlet and fed to the upper portion of the conduit as gas for sealing thereby preventing fibers and the conduit made of carbon or graphite from being deteriorated by said vapor evaporated from the water seal and providing a gas for sealing the upper end of the conduit.

REFERENCES:
patent: 4020273 (1977-04-01), Dix et al.

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