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    PULVERIZED COAL COMBUSTION APPARATUS
    1.
    发明专利
    PULVERIZED COAL COMBUSTION APPARATUS 未知

    公开(公告)号：AU612186B2

    公开(公告)日：1991-07-04

    申请号：AU2349788

    申请日：1988-10-06

    Applicant: BABCOCK HITACHI KK

    Inventor： OKADA OSAMU ,  MASAI TADAHISA ,  TOMINAGA SHIGERU ,  INADA HIROSHI ,  MORITA SHIGEKI ,  NAKASHITA SHIGETO

    IPC: F23C99/00 ,  F23D1/00 ,  F23D1/06

    Abstract: An apparatus which comprises a burner (1), through which pulverized coal and carrier air are passed to be burnt in a combustion chamber (2), and a flame retainer (18) disposed at an end of the burner. The flame retainer includes a flared tube (17) and an annular plate (16), which plate has a plurality of parts projecting radially inwards and being equiangularly spaced from each other. The annular plate comprises a plurality of ceramic pieces (23) and a plurality of fastener elements (25), both of which are arranged and assembled alternately to form the annular plate. The ceramic piece is shaped such that it projects radially inwards to serve as the projecting part when assembled. The ceramic piece has at opposite sides thereof smoothly curved edge surfaces (24a, 24b), and the fastener element has at opposite sides thereof smoothly curved edge surfaces (26a, 26b) which are engaged with the curved edge surfaces of the two neighbouring two ceramic pieces.

    3.
    发明专利
    未知

    公开(公告)号：DE3867600D1

    公开(公告)日：1992-02-20

    申请号：DE3867600

    申请日：1988-10-05

    Applicant: BABCOCK HITACHI KK

    Inventor： OKADA OSAMU ,  MORITA SHIGEKI ,  NAKASHITA SHIGETO ,  MASAI TADAHISA ,  TOMINAGA AZA NAKAHARA ,  INADA HIROSHI

    IPC: F23C99/00 ,  F23D1/00

    Abstract: An apparatus which comprises a burner (1), through which pulverized coal and carrier air are passed to be burnt in a combustion chamber (2), and a flame retainer (18) disposed at an end of the burner. The flame retainer includes a flared tube (17) and an annular plate (16), which plate has a plurality of parts projecting radially inwards and being equiangularly spaced from each other. The annular plate comprises a plurality of ceramic pieces (23) and a plurality of fastener elements (25), both of which are arranged and assembled alternately to form the annular plate. The ceramic piece is shaped such that it projects radially inwards to serve as the projecting part when assembled. The ceramic piece has at opposite sides thereof smoothly curved edge surfaces (24a, 24b), and the fastener element has at opposite sides thereof smoothly curved edge surfaces (26a, 26b) which are engaged with the curved edge surfaces of the two neighbouring two ceramic pieces.

    APPARATUS FOR COAL COMBUSTION
    5.
    发明专利
    APPARATUS FOR COAL COMBUSTION 未知

    公开(公告)号：AU2915684A

    公开(公告)日：1985-10-31

    申请号：AU2915684

    申请日：1984-06-06

    Applicant: BABCOCK HITACHI KK

    Inventor： MORITA SHIGEKI ,  UEMURA TOSHIO ,  KOUDA FUMIO ,  NAWATA TSUYOSHI ,  MASAI TADAHISA ,  NAKASHITA SHIGETO

    IPC: F23C99/00 ,  F23D1/00 ,  F23D1/02

    Abstract: A coal combustion apparatus capable of improving NO x reduction to a large extent is provided, which apparatus comprises a pulverized coal-feeding pipe (abbreviated to coal pipe) inserted into a burner throat on the lateral wall of a combustion furnace and for feeding the coal and air into the furnace; a means for feeding the coal and air into the coal pipe; a secondary air passageway formed between the coal pipe and a secondary air-feeding pipe provided on the outer peripheral side of the coal pipe; a ternary air passageway formed on the outer peripheral side of the secondary air-feeding pipe; a means for feeding air or an oxygen-containing gas into the secondary air passageway and that into the ternary air passageway; and a bluff body having a cross-section of a L-letter form provided at the tip end of the coal pipe.

    APPARATUS FOR COAL COMBUSTION
    6.
    发明专利
    APPARATUS FOR COAL COMBUSTION 未知

    公开(公告)号：ZA851121B

    公开(公告)日：1985-10-30

    申请号：ZA851121

    申请日：1985-02-14

    Applicant: BABCOCK HITACHI KK

    Inventor： MORITA SHIGEKI ,  MASAI TADAHISA ,  NAKASHITA SHIGETO ,  UEMURA TOSHIO ,  KOUDA FUMIO ,  NAWATA TSUYOSHI

    IPC: F23C99/00 ,  F23D1/00 ,  F23D1/02 ,  F23B ,  F23K ,  F23L

    Abstract: A coal combustion apparatus capable of improving NO x reduction to a large extent is provided, which apparatus comprises a pulverized coal-feeding pipe (abbreviated to coal pipe) inserted into a burner throat on the lateral wall of a combustion furnace and for feeding the coal and air into the furnace; a means for feeding the coal and air into the coal pipe; a secondary air passageway formed between the coal pipe and a secondary air-feeding pipe provided on the outer peripheral side of the coal pipe; a ternary air passageway formed on the outer peripheral side of the secondary air-feeding pipe; a means for feeding air or an oxygen-containing gas into the secondary air passageway and that into the ternary air passageway; and a bluff body having a cross-section of a L-letter form provided at the tip end of the coal pipe.

    PULVERIZED COAL COMBUSTION APPARATUS
    9.
    发明专利
    PULVERIZED COAL COMBUSTION APPARATUS 未知

    公开(公告)号：AU2349788A

    公开(公告)日：1989-04-13

    申请号：AU2349788

    申请日：1988-10-06

    Applicant: BABCOCK HITACHI KK

    Inventor： OKADA OSAMU ,  MORITA SHIGEKI ,  NAKASHITA SHIGETO ,  MASAI TADAHISA ,  TOMINAGA SHIGERU ,  INADA HIROSHI

    IPC: F23C99/00 ,  F23D1/00 ,  F23D1/06

    Abstract: An apparatus which comprises a burner (1), through which pulverized coal and carrier air are passed to be burnt in a combustion chamber (2), and a flame retainer (18) disposed at an end of the burner. The flame retainer includes a flared tube (17) and an annular plate (16), which plate has a plurality of parts projecting radially inwards and being equiangularly spaced from each other. The annular plate comprises a plurality of ceramic pieces (23) and a plurality of fastener elements (25), both of which are arranged and assembled alternately to form the annular plate. The ceramic piece is shaped such that it projects radially inwards to serve as the projecting part when assembled. The ceramic piece has at opposite sides thereof smoothly curved edge surfaces (24a, 24b), and the fastener element has at opposite sides thereof smoothly curved edge surfaces (26a, 26b) which are engaged with the curved edge surfaces of the two neighbouring two ceramic pieces.

    PULVERIZED COAL BURNER
    10.
    发明专利
    PULVERIZED COAL BURNER 未知

    公开(公告)号：AU570249B2

    公开(公告)日：1988-03-10

    申请号：AU2915684

    申请日：1984-06-06

    Applicant: BABCOCK HITACHI KK

    Inventor： MORITA SHIGEKI ,  MASAI TADAHISA ,  NAKASHITA SHIGETO ,  UEMURA TOSHIO ,  KOUDA FUMIO ,  NAWATA TSUYOSHI

    IPC: F23C99/00 ,  F23D1/00 ,  F23D1/02

    Abstract: A coal combustion apparatus capable of improving NO x reduction to a large extent is provided, which apparatus comprises a pulverized coal-feeding pipe (abbreviated to coal pipe) inserted into a burner throat on the lateral wall of a combustion furnace and for feeding the coal and air into the furnace; a means for feeding the coal and air into the coal pipe; a secondary air passageway formed between the coal pipe and a secondary air-feeding pipe provided on the outer peripheral side of the coal pipe; a ternary air passageway formed on the outer peripheral side of the secondary air-feeding pipe; a means for feeding air or an oxygen-containing gas into the secondary air passageway and that into the ternary air passageway; and a bluff body having a cross-section of a L-letter form provided at the tip end of the coal pipe.

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