Method for operating a blast furnance by blowing pulverized coal
    1.
    发明授权
    Method for operating a blast furnance by blowing pulverized coal 失效
    通过吹送粉煤操作高炉的方法

    公开(公告)号:US4844737A

    公开(公告)日:1989-07-04

    申请号:US134803

    申请日:1987-12-18

    CPC分类号: C21B5/003

    摘要: A method for operating a blast furnace, comprising the steps: charging iron ores and cokes through a furnace top into the blast furnace; blowing in gas containing 40 vol. % or more oxygen together with pulverized coal through tuyeres into the blast furnance; and controlling a fuel ratio within a range of 500 to 930 kg/ton., molten pig iron and still a ratio of the pulverized coal blown in through the tuyeres within a range satisfying the formula: ##EQU1## molten pig iron, where X represents a fuel ratio. Through blown-in inlets set in the furnace shaft, preheating gas is blown in to preheat burdens. The cokes charged into the blast furnace are cokes of low strength having a drum index of DI.sub.15.sup.30 of 80 to 90% .

    摘要翻译: 一种操作高炉(1)的方法,包括以下步骤:通过耐火顶将铁矿石(2)和焦炭(3)装入高炉; 将含有40vol。%或更多氧气的气体与粉煤通过风嘴(4)吹入高炉; 控制燃料比在500〜930kg / ton的范围内,熔融生铁和通过风口吹入的粉煤的比例仍然在满足以下公式的范围内:铁,其中X表示燃料比 。 通过设置在炉膛中的吹入(11)入口,预热气体(10)被吹入以预热燃烧。 将焦炭装入高炉中的焦炭是低强度的焦炭,其转鼓指数为DI = @ 80至90%。

    Method for controlling operation of a blast furnace
    6.
    发明授权
    Method for controlling operation of a blast furnace 失效
    控制高炉运行的方法

    公开(公告)号:US4857106A

    公开(公告)日:1989-08-15

    申请号:US224753

    申请日:1988-07-27

    IPC分类号: C21B5/00 C21B7/24

    摘要: A method for controlling heat conditions in a blast furnace wherein the heat conditions are inferred and judged in comparison of data output from sensor means provided for the blast furnace with knowledge base means formed by accumulated experience on the operation of the blast furnace. The heat conditions are inferred and judged from levels of heat conditions and from levels of transition of heat conditions, wherein data regarding molten metal temperature and those regarding sensors are used. The inference and judgement are carried out by inference engine means included in a small-scale computer.

    摘要翻译: 一种用于控制高炉中的热条件的方法,其中通过比较从高炉提供的传感器装置输出的数据与通过高炉操作的积累经验形成的知识库装置相比较,推断和判断热条件。 根据热条件的水平和热条件的转变水平来推断和判断热条件,其中使用关于熔融金属温度的数据和关于传感器的数据。 推理和判断由包括在小型计算机中的推理机进行。