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    COMBUSTION CONTROL METHOD FOR REFUSE INCINERATOR
    2.
    发明公开
    COMBUSTION CONTROL METHOD FOR REFUSE INCINERATOR 失效
    VERFAHREN ZUR VERBRENNUNGSREGELUNG EINES ABFALLVERBRENNUNGSOFENS

    公开(公告)号：EP0943864A1

    公开(公告)日：1999-09-22

    申请号：EP97942223.5

    申请日：1997-10-02

    申请人： NKK CORPORATION

    发明人： FUJII, Satoshi, NKK Corporation ,  KURODA, Manabu, NKK Corporation ,  NOGAMI, Yuichi, NKK Corporation

    IPC分类号： F23G5/50

    CPC分类号： F23G5/50 ,  F22B31/045 ,  F23G2203/101 ,  F23G2205/14 ,  F23G2207/103 ,  F23G2207/112 ,  F23G2207/20 ,  F23G2207/30 ,  F23G2900/55001 ,  F23G2900/55006 ,  F23G2900/55007 ,  F23G2900/55008 ,  F23G2900/55009 ,  F23N5/006 ,  F23N2035/06 ,  F23N2041/18 ,  Y02E20/12

    摘要： A combustion control method in a refuse incineration furnace utilizing the combustion heat of refuse for producing steam power, in which the state of combustion is stabilized so that a predetermined quantity of produced stream can be obtained. In the method, the weight of introduced refuse and the level change between levels before and after introduction of refuse are obtained on the basis of values measured by means of a refuse gravimeter attached to a refuse-introduction crane and a refuse level meter 12 for measuring the surface height of refuse in a refuse incineration furnace hopper; and the speed of a drying fire grate 3a for feeding refuse into the furnace is controlled on the basis of a result of comparison of the thus obtained weight and level change of refuse with those obtained in a plurality of times in the past up to the preceding time. Further, a quantity of steam produced in the refuse incineration furnace and a concentration of O 2 in exhaust gas are measured; a target quantity of combustion air required for making the quantity of produced steam coincident with a target quantity of produced steam is calculated; the target quantity of combustion air calculated when the measured value of the concentration of O 2 in exhaust gas first reaches a predetermined upper limit value is made to be a temporarily set quantity of combustion air; the quantity of combustion air is controlled so as to be coincident with the target quantity of combustion air when the measured value of the concentration of O 2 in exhaust gas is not larger than the upper limit value; and the quantity of combustion air is controlled so as to be coincident with smaller one of the target quantity of combustion air and the temporarily set quantity of combustion air when the measured value of the concentration of O 2 in exhaust gas is larger than the upper limit value.

    摘要翻译： 一种利用垃圾燃烧热产生蒸汽动力的垃圾焚烧炉中的燃烧控制方法，其中燃烧状态稳定，从而可获得预定量的生产流。 在该方法中，基于通过附接到垃圾引入式起重机的垃圾重力仪和用于测量的垃圾水位计12测量的值来获得引入垃圾的重量和在引入垃圾之前和之后的水平之间的水平变化 在垃圾焚烧炉料斗中的垃圾的表面高度; 并且根据这样获得的重量和废物的水平变化与以前多次获得的废物的比较结果来控制用于将垃圾送入炉中的干燥炉排3a的速度 时间。 此外，测量在垃圾焚烧炉中产生的蒸汽量和废气中的O 2浓度; 计算使产生的蒸汽量与产生的蒸汽的目标量一致所需的目标燃烧空气量; 将排气中的O 2浓度的测定值首先达到预定的上限值时计算出的目标燃烧空气量设定为暂时设定的燃烧空气量; 当废气中的O 2浓度的测量值不大于上限值时，燃烧空气的量被控制为与目标燃烧空气量一致; 并且当废气中的O 2浓度的测量值大于上限值时，燃烧空气的量被控制为与目标燃烧空气量和临时设定的燃烧空气量相比较小。 。