Abstract: A cleaning tool that includes an acoustic cavitation duct that cleans particles within a continuous flow of slurry. In one embodiment, the acoustic cavitation duct includes an elongated fluid passageway for carrying the flow of slurry. A number of ultrasonic transducers are spaced from one another along the length of the passageway and induce cavitation into the slurry as it travels through the duct. The cavitation promotes the cleaning of the slurry particles. In one example, the transducers operate at differing frequencies.

Abstract: A cleaning tool that includes an acoustic cavitation duct that cleans particles within a continuous flow of slurry. In one embodiment, the acoustic cavitation duct includes an elongated fluid passageway for carrying the flow of slurry. A number of ultrasonic transducers are spaced from one another along the length of the passageway and induce cavitation into the slurry as it travels through the duct. The cavitation promotes the cleaning of the slurry particles. In one example, the transducers operate at differing frequencies.

Abstract: Systems and methods for processing sludge from a fume scrubbing system that scrubs fumes from a steelmaking converter in a manner that separates/isolates a significant portion of the metallic iron particles in the sludge and prepares these particles for convenient handling. In an exemplary system, the system includes separating equipment that isolates metallic iron particles in the sludge and forming equipment that forms the isolated particles into briquettes that have relatively high mechanical resistance that allow the briquettes to maintain their integrity during handling and storage. The high-metallic-iron-content briquettes can be recycled in the steelmaking process, for example, as charging material for a basic oxygen converter or an electric arc furnace. Water used in the system can be recycled and reused within the system, thereby making the system environmentally friendly.

Abstract: Systems and methods for processing sludge from a fume scrubbing system that scrubs fumes from a steelmaking converter in a manner that separates/isolates a significant portion of the metallic iron particles in the sludge and prepares these particles for convenient handling. In an exemplary system, the system includes separating equipment that isolates metallic iron particles in the sludge and forming equipment that forms the isolated particles into briquettes that have relatively high mechanical resistance that allow the briquettes to maintain their integrity during handling and storage. The high-metallic-iron-content briquettes can be recycled in the steelmaking process, for example, as charging material for a basic oxygen converter or an electric arc furnace. Water used in the system can be recycled and reused within the system, thereby making the system environmentally friendly.