Apparatus for cleaning and scale dust removal from steel rod after mechanical descaling

A waterless particle removing apparatus for removing scale particles from a carbon steel strand, the apparatus comprising:

• a housing which defines an entrance opening, an exit opening, and a central chamber disposed in alignment along a central axis such that the strand is adapted to be moved linearly along the central axis through the entrance opening, the central chamber, and the exit opening;
• a compressed air manifold for supplying air under pressure;
• a tubular entrance nozzle having an entrance nozzle passage and a plurality of entrance air jet orifices, the entrance nozzle being disposed in the entrance opening with the entrance nozzle passage in alignment with the central axis, the entrance air jet orifices being disposed in fluid communication between the air manifold and the nozzle passage and being directed toward the central chamber in such a manner that a venturi effect is created drawing air from exterior of the housing, through the entrance nozzle passage where it mixes with scale particles freed from the steel strand, and into the central chamber, whereby the venturi effect prevents scale particles from escaping through the entrance nozzle passage to the exterior of the housing;
• a tubular exit nozzle having an exit nozzle passage and a plurality of exit air jet orifices, the exit nozzle being disposed in the exit opening with the exit nozzle passage in alignment with the central axis, the exit air jet orifices being disposed in fluid communication between the air manifold and the exit nozzle passage and being directed toward the central chamber in such a manner that a venturi effect is created drawing air through the exit nozzle passage where it mixes with scale particles freed from the steel strand and into the central chamber, whereby the venturi effect prevents scale particles from escaping through the exit nozzle passage to the exterior of the housing;
• and,
• a scale particle filtering device operatively connected with the central chamber for allowing scale particle free air to be returned to the exterior of the housing and collecting scale particles therein.