A method and apparatus that reduce release of dust generated during rotary dumping of rail cars in a dumping facility. The method includes removing dust laden air from a space bounded by a backside airflow diverter, a rotational frame, a first baffle and a second baffle while the rotational frame is rotating with a rail car by drawing the dust laden air through a secondary air intake that passes through the backside airflow diverter into a backside hood. A dust control apparatus includes a diverter, overlying a backside hood having a concave curved upper surface; and at least one secondary air intake positioned to pass through the diverter being located approximately where pressure in the backside hood remains neutral or negative relative to a pressure even there is a transient increase in air pressure in a lower portion of the backside hood.

A method and apparatus that reduce release of dust generated during rotary dumping of rail cars in a dumping facility. The method includes removing dust laden air from a space bounded by a backside airflow diverter, a rotational frame, a first baffle and a second baffle while the rotational frame is rotating with a rail car by drawing the dust laden air through a secondary air intake that passes through the backside airflow diverter into a backside hood. A dust control apparatus includes a diverter, overlying a backside hood having a concave curved upper surface; and at least one secondary air intake positioned to pass through the diverter being located approximately where pressure in the backside hood remains neutral or negative relative to a pressure even there is a transient increase in air pressure in a lower portion of the backside hood.

A tilting apparatus for emptying materials, including bulk material, out of railcars that are open at a top may include a tilting frame that is rotatable about an axis of rotation D and is connected to a platform that can receive at least one railcar, a clamping arm attached to the tilting frame in a rotatable manner, a locking device for preventing relative movement of the tilting frame and the clamping arm, and a bracket that is attached to the clamping arm such that in a tilted position of the tilting apparatus in which the tilting frame has been rotated about the axis of rotation that bracket lies at least partially against an upper edge of at least one of the side walls of the at least one railcar. Further, the hydraulic cylinder may be attached to the bracket.

A tilting apparatus for emptying materials, including bulk material, out of railcars that are open at a top may include a tilting frame that is rotatable about an axis of rotation D and is connected to a platform that can receive at least one railcar, a clamping arm attached to the tilting frame in a rotatable manner, a locking device for preventing relative movement of the tilting frame and the clamping arm, and a bracket that is attached to the clamping arm such that in a tilted position of the tilting apparatus in which the tilting frame has been rotated about the axis of rotation that bracket lies at least partially against an upper edge of at least one of the side walls of the at least one railcar. Further, the hydraulic cylinder may be attached to the bracket.

A railcar dumper system utilizes a trunnion wheel assembly to support a rotary rail car dumper having a rotary frame assembly supported by at least four trunnion wheel assemblies positioned along the ends of the rotary frame assembly. Each trunnion wheel assembly includes an equalizer bracket and a pair of trunnion wheel units selectively connected and disconnected from opposite ends of the equalizer bracket. Each trunnion wheel unit has a respective trunnion wheel bracket supporting a respective trunnion wheel that rotates within the trunnion wheel bracket. An equalizer support pivotally connects to the equalizer bracket between the opposite ends.

A railcar dumper system utilizes a trunnion wheel assembly to support a rotary rail car dumper having a rotary frame assembly supported by at least four trunnion wheel assemblies positioned along the ends of the rotary frame assembly. Each trunnion wheel assembly includes an equalizer bracket and a pair of trunnion wheel units selectively connected and disconnected from opposite ends of the equalizer bracket. Each trunnion wheel unit has a respective trunnion wheel bracket supporting a respective trunnion wheel that rotates within the trunnion wheel bracket. An equalizer support pivotally connects to the equalizer bracket between the opposite ends.

A method and apparatus that reduce release of dust generated during rotary dumping of rail cars in a dumping facility. The method includes removing dust laden air from a space bounded by a backside airflow diverter, a rotational frame, a first baffle and a second baffle while the rotational frame is rotating with a rail car by drawing the dust laden air through a secondary air intake that passes through the backside airflow diverter into a backside hood. A dust control apparatus includes a diverter, overlying a backside hood having a concave curved upper surface; and at least one secondary air intake positioned to pass through the diverter being located approximately where pressure in the backside hood remains neutral or negative relative to a pressure even there is a transient increase in air pressure in a lower portion of the backside hood.

A method and apparatus that reduce release of dust generated during rotary dumping of rail cars in a dumping facility. The method includes removing dust laden air from a space bounded by a backside airflow diverter, a rotational frame, a first baffle and a second baffle while the rotational frame is rotating with a rail car by drawing the dust laden air through a secondary air intake that passes through the backside airflow diverter into a backside hood. A dust control apparatus includes a diverter, overlying a backside hood having a concave curved upper surface; and at least one secondary air intake positioned to pass through the diverter being located approximately where pressure in the backside hood remains neutral or negative relative to a pressure even there is a transient increase in air pressure in a lower portion of the backside hood.

This invention relates to a control system and method for rotary car dumpers comprising a positioning car, silos and feeders. Such control system comprises three integrated and communicating controls in closed grid, that is, the positioning car control, the silos level control and the feeder flow control. In this way, with the data of these controls, the rotary car dumpers control system is configured to maintain the level of silo at maximum, performing changes in the cycle time by controlling the positioning car to maintain the level of silos and thus achieve maximum productivity of the equipment.

This invention relates to a control system and method for rotary car dumpers comprising a positioning car, silos and feeders. Such control system comprises three integrated and communicating controls in closed grid, that is, the positioning car control, the silos level control and the feeder flow control. In this way, with the data of these controls, the rotary car dumpers control system is configured to maintain the level of silo at maximum, performing changes in the cycle time by controlling the positioning car to maintain the level of silos and thus achieve maximum productivity of the equipment.