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首页> 外文期刊>ISIJ international >Continuous Measurement and Control of Sinter Mix Moisture for Decrease in Sintering Fluctuation
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Continuous Measurement and Control of Sinter Mix Moisture for Decrease in Sintering Fluctuation

机译：连续测量和控制烧结矿中的水分以降低烧结波动

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摘要

To decrease carbon dioxide emission in iron ore sintering process through reduction of carbon consumption as sintering agent, reduction of fluctuation in iron ore sintering was studied. Transition phenomena of the sintering fluctuation through a sintering plant were observed and studied using a frequency analysis. The sintering fluctuation was defined as the cyclic change in the exhaust gas temperatures at a certain wind-box. The observation of the wind box temperatures showed that the temperature changes of several minute cycles existed. To search for upstream causes, charging behavior of the sinter mix to pallet cars was observed using an index of "charging level". Comparison of the charging level and the wind box temperature showed that the fluctuations of them were almost coincident in the occurring time and position. To search for further upstream causes, a near-infrared moisture meter was introduced to measure sinter mix moisture with high frequency. To investigate the relationship between the wind box temperature, the charging and the sinter mix moisture, a frequency analysis of the fluctuations of them was carried out. It showed that some frequency elements were almost coincident and that fluctuation transferred from the fluctuation in the sinter mix moisture to the sintering. Then, a test operation of more precise control of the sinter mix moisture using the near-infrared moisture meters in a sintering plant was carried out. It successfully reduced sintering fluctuation.
机译：为了通过减少作为烧结剂的碳消耗来减少铁矿石烧结过程中的二氧化碳排放，研究了减少铁矿石烧结过程中的波动。观察并研究了通过烧结厂的烧结波动的过渡现象。烧结波动被定义为特定风箱处废气温度的周期性变化。对风箱温度的观察表明存在数分钟周期的温度变化。为了寻找上游原因，使用“装料水平”指数观察了烧结混合物对托盘车的装料行为。充电水平和风箱温度的比较表明，它们的波动在发生的时间和位置上几乎是一致的。为了寻找更多的上游原因，引入了近红外水分仪以高频率测量烧结混合水分。为了研究风箱温度，装料和烧结矿混合水分之间的关​​系，对它们的波动进行了频率分析。结果表明，一些频率元素几乎是重合的，并且波动是从烧结矿中的水分向烧结矿转变而来。然后，在烧结厂中进行了使用近红外水分仪对烧结混合物水分进行更精确控制的测试操作。它成功地减少了烧结波动。

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  • 来源
    《ISIJ international》 |2013年第9期|1510-1514|共5页
  • 作者

    Kentaro NOZAWA; Koichi MORIOKA; Takahiro KINUGASA; Koji ANO; Koji OSUGA;

  • 作者单位

    Research & Development Laboratory, KOBE STEEL, LTD., 2222-1, Ikeda, Onoe-cho, Kakogawa, Hyogo, 675-0023 Japan;

    Research & Development Laboratory, KOBE STEEL, LTD., 2222-1, Ikeda, Onoe-cho, Kakogawa, Hyogo, 675-0023 Japan;

    Iron-making section, KOBE STEEL, LTD., Kanazawa-cho, Kakogawa, Hyogo, 675-0023 Japan;

    Research & Development Laboratory, KOBE STEEL, LTD., 2222-1, Ikeda, Onoe-cho, Kakogawa, Hyogo, 675-0023 Japan;

    Research & Development Laboratory, KOBE STEEL, LTD., 2222-1, Ikeda, Onoe-cho, Kakogawa, Hyogo, 675-0023 Japan;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    sinter; fluctuation; moisture measurement; moisture control;

    机译：烧结波动;水分测量;水分控制;

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