Patent ID: 6960054

Claim:
An apparatus for rotary dumping of rail cars, comprising: a dumping facility having an interior and an exterior; a material receiving pit disposed within the interior of the dumping facility, the pit defining an inside surface having a dump side, a back side and a bottom; a rotational frame disposed in the pit, the frame configured to dump a load from a rail car as it travels along a rotational path of travel between an upright position wherein the entire load is in the rail car and a dumping position wherein the load exits the rail car; one or more dump side baffles operably connected to a dump side hood, the one or more dump side baffles disposed at least partially within the pit; a backside airflow diverter disposed within the pit adjacent the back side of the pit, wherein the backside airflow diverter includes an upper surface and a lower surface, a backside hood for removing contaminated air from the back side of the pit; and one or more flexible baffles disposed on the rotational frame, the one or more baffles presenting a leading edge, and the one or more baffles configured to contact the backside airflow diverter during at least a portion of the rotational motion.