(19)
(11) EP 0 438 171 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
18.12.1991 Bulletin 1991/51

(43) Date of publication A2:
24.07.1991 Bulletin 1991/30

(21) Application number: 91100585.8

(22) Date of filing: 18.01.1991
(51) International Patent Classification (IPC)5: F23C 11/02
(84) Designated Contracting States:
DE SE

(30) Priority: 19.01.1990 JP 9581/90

(71) Applicant: NKK CORPORATION
Tokyo 100 (JP)

(72) Inventors:
  • Uyama, Kiyoshi, c/o Patent & Licence Department
    Kawasaki-ku, Kawasaki 210 (JP)
  • Yamamoto, Koji, c/o Patent & Licence Department
    Kawasaki-ku, Kawasaki 210 (JP)
  • Tsuboi, Haruhito, c/o Patent & Licence Department
    Kawasaki-ku, Kawasaki 210 (JP)
  • Iwasaki, Toshihiko, c/o Patent & Licence Dept.
    Kawasaki-ku, Kawasaki 210 (JP)

(74) Representative: Füchsle, Klaus, Dipl.-Ing. et al
Hoffmann, Eitle & Partner, Patentanwälte, Postfach 81 04 20
81904 München
81904 München (DE)


(56) References cited: : 
   
       


    (54) Circulating fluid-bed combustion apparatus


    (57) A circulating fluid-bed combustion apparatus comprises a fluid-bed combustion chamber (1) for combusting solid fuels, a separator (2) for separating particles accompanying combustion gases, a conduit (5) for taking out particles, which is arranged at the bottom of the fluid-bed combustion apparatus, a pulverizer (6) for pulverizing particles introduced from the conduit for taking out particles and a conduit (8) for returning particles to the fluid-bed combustion chamber.
    The conbustion apparatus can have a classifier (7) before the pulverizer.






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