Gas-collecting apparatus for coking installation

In combination with a coking installation having:

• a coking chamber having a coke side opening above a bench level in turn above ground level;
• a coke-guide track at said bench level;
• a coke guide displaceable along said track and alignable with said coke side opening of said chamber;
• a ground-level quenching-car track;
• and
• a quenching car displaceable at ground level along said quenching-car track to receive coke pushed from said chamber through said guide;
• a gas-collecting apparatus comprising:
• an outer track supported at said ground level and including a pair of rails at least one of which is at said ground level, said coke-guide and quenching-car tracks lying between said pair of rails and said coking chamber;
• a portal support displaceable along said outer track and including a pair of legs each provided with a wheel and a horizontal stage interconnecting said legs, said wheels riding on said rails;
• a gas-collecting hood supported on said support over said quenching car;
• and
• gas-treatment means connected to said hood for aspirating gases generated at said quenching car, said gas-treatment means including:
• a stationary conduit extending along said outer track under said stage,
• a movable conduit carried on said support and connected at one end to said hood and having another end, and
• means for connecting said other end of said movable conduit to said stationary conduit at any of a multiplicity of locations therealong.