Car dumper dust collection method and apparatus
AssigneeAir-Cure Incorporated
InventorsMichael R. Harris, Dennis D. Hall, Kal N. Ugargol
Life of this patent
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Abstract
An apparatus for rotary dumping of rail cars, including a material receiving pit. A rotary rail car dumper includes a rotational frame supporting at least one baffle. The rotational frame is configured to dump a load from a rail car during rotational motion of the rotational frame between an upright position wherein the entire load is in the rail car and a dumping position wherein the load can exit the rail car. A backside airflow diverter is located beneath the rotational frame and includes a curved upper surface. A lower margin of the at least one baffle contacts the curved upper surface during at least part of the rotational motion of the rotational frame.
Claims18
An arrangement of baffles and diverters utilized to control dust released during the dumping of railcars, the arrangement comprising:
- three baffles hingedly coupled to a rotating structure and extending downwardly under the influence of gravity, each of the three baffles having a first vertical length extending from a top edge to a bottom edge thereof;
- a backside diverter located beneath a backside of the rotating structure, the backside diverter having a curved upper surface and being located at a distance from the rotating structure such that the distance from the curved upper surface to the top edge of each of the three baffles is less than the vertical length respectively during that part of the rotation of the rotating structure when each of the three baffles is positioned vertically above the curved upper surface of the backside diverter.
A method of controlling dust released during the dumping of railcars, comprising:
- compartmentalizing a first volume of dust laden air in a first space located between a rotating structure, a backside diverter located at least partially beneath the rotating structure, two of three baffles hingedly coupled to the rotating structure and extending vertically downwardly from the rotating structure toward the backside diverter and contacting the backside diverter during at least part of rotation of the rotating structure;
- compartmentalizing a second volume of dust laden air in a second space located between the rotating structure, the backside diverter, one of the two baffles and a third of the three baffles hingedly coupled to the rotating structure and extending vertically downwardly from the rotating structure toward the backside diverter and contacting the backside diverter during at least part of rotation of the rotating structure;
- and
- removing a third volume of dust laden air from a dumping pit in which the rotating structure and the backside diverter are located via exhaust suction through an intake hood.
Dependencies are inferred from the claim text.