Patents Assigned to F.L. Smidth A/S
  • Patent number: 6902393
    Abstract: Described is a plant for manufacturing cement clinker comprising a preheater (1) which comprises at least one last cyclone (1d) and at least one next-to-last cyclone (1c) which is connected in series via a gas duct (2c) to and fed with a gas from the last cyclone (1d), a calciner (3) which comprises at least one inlet opening (9) for introducing preheated raw meal from the last cyclone (1d), and which is connected to a subsequent separating cyclone (4), a gas duct (2d) which connects the separating cyclone (4) to the last cyclone (1d), and which comprises at least one inlet opening (11) for introducing preheated raw meal from the next-to-last cyclone (1c).
    Type: Grant
    Filed: July 19, 2001
    Date of Patent: June 7, 2005
    Assignee: F.L. Smidth A/S
    Inventors: Lars Skaarup Jensen, Kent Thomsen