高精度称重给煤机
    2.
    发明申请

    公开(公告)号:WO2009039729A1

    公开(公告)日:2009-04-02

    申请号:PCT/CN2008/071002

    申请日:2008-05-16

    CPC classification number: F23K3/00 F23K2203/104 G01G11/006 G01G23/01 G01G23/16

    Abstract: A high accuracy coal weighing feeder is comprised of an input funnel (2), an output means (10), a feeder shell (5), a conveyor belt (4), a drawing strickle scavenging machine (9), a tacho-generator (11) and weighing means. The weighing means include three weighers(3,7,12) which are set below the conveyor belt (4), two weighers (3,7) are adjacently positioned upstream from the input funnel and one weigher (12) is positioned downstream from the input funnel. Each weigher has a check weights (8), a gas inlet valve (17) is set on the check weights and connected to a gas blow pipe (18). The three weighers (3,7,12) and the tacho-generator (11) are connected to an integrated metering device by signal cables. The present weighing means can realize automatic calibration, automatic comparison and the zero point continuously determined on line.

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