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    CLASSIFIER, POWER PLANT, AND METHOD FOR OPERATING CLASSIFIER
    1.
    发明公开
    CLASSIFIER, POWER PLANT, AND METHOD FOR OPERATING CLASSIFIER 审中-公开

    公开(公告)号：EP4238653A1

    公开(公告)日：2023-09-06

    申请号：EP22779681.0

    申请日：2022-02-24

    Applicant: Mitsubishi Heavy Industries, Ltd.

    Inventor： YAMAGUCHI, Sotaro

    IPC: B02C15/04 ,  B07B7/083 ,  F23G5/033 ,  B02C23/12

    Abstract: The purpose of the present invention is to improve classifying performance. A rotary classifier (16) classifies crushed solid fuel guided along with primary air into a coarse powder fuel (B1) having a particle size greater than a predetermined particle size and a fine powder fuel (B2) having a particle size equal to or less than the predetermined particle size. The rotary classifier (16) comprises a plurality of blades (60) that extend vertically, that are circumferentially positioned side by side on a virtual circle (V) centered about a vertically extending center axis (C), and that guide solid fuel along with transport gas heading from the outer side to the inner side along the radial direction. The blades (60) have collision surfaces (61) against which the guided crushed fuel collides. Said collision surfaces (61) causing coarse powder fuel (B1) of the crushed fuel that has collided therewith to be repelled radially outward, and fine powder fuel (B2) of the crushed fuel that has collided therewith to be repelled radially inward, the particles of the coarse powder fuel (B1) exceeding a predetermined size and the particles of the fine powder fuel (B2) not exceeding the predetermined particle size. In each of the collision surfaces (61), the angle formed by the tangent of the virtual circle (V) and a normal to the collision surface (61) is greater on the radially outer side than on the radially inner side.

    GRINDING SYSTEM
    5.
    发明公开
    GRINDING SYSTEM 审中-公开

    公开(公告)号：EP3812046A1

    公开(公告)日：2021-04-28

    申请号：EP18923217.6

    申请日：2018-06-22

    Applicant: Kawasaki Jukogyo Kabushiki Kaisha

    Inventor： ANDO, Fuminori ,  TOKIOKA, Nobuo ,  ENDO, Akira ,  NAKAI, Takanobu

    IPC: B02C15/04 ,  B02C21/00 ,  B02C23/12 ,  B02C23/22

    Abstract: A grinding system includes: a vertical roller mill; a ground material circulation system including a ground material circulation passage through which ground materials discharged from the vertical roller mill move from a discharge port of the vertical roller mill to a supply port and a classifier provided at the ground material circulation passage and configured to classify the ground materials and separate refined powder from the ground materials; and a gas circulation system including a gas circulation passage through which gas discharged from the vertical roller mill flows from a gas discharge port of the vertical roller mill to a hot air inlet, a powder collector provided at the gas circulation passage and configured to separate fine powder from the gas, and a fan configured to suck the gas into the gas circulation passage. The gas circulation system is independent from the ground material circulation system.

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