首页> 外文期刊>Steel in Translation >Gas and coke motion in tuyere zone of blast furnace
【24h】

Gas and coke motion in tuyere zone of blast furnace

机译:高炉风口区的煤气和焦炭运动

获取原文
获取原文并翻译 | 示例
获取外文期刊封面目录资料

摘要

The state of the hearth is evaluated by visual inspection of the tuyere regions and the composition and distribution of the hot metal and the slag. To date, there have been few attempts to mount pyrometers at the inspection holes of the tuyeres and thermocouples at the end of the tuyeres. Therefore, in the absence of continuous information on the processes in the tuyere regions and the mechanics of coke motion in the hearth, it is hard for technologists to form clear ideas regarding the state of the hearth. It has long been assumed that the combustion zone ventilated by the blast is a source of high-temperature reducing gas. The dimensions of the zone are related to the furnace processes and parameters. Therefore, the extent of the coke combustion is regularly inspected manually, by introducing an iron probe through the tuyere inspection hole until it encounters a dense batch layer. The gas composition was first investigated by Ebelmann in 1844, at charcoal- and coke-fired coke furnaces in France. In 1892, Van-Vloten studied the combustion in a coke-fired German blast furnace with a hearth diameter of 3 m. In the USA, the first data on the gas composition in the tuyere region was obtained by Pirrot and Kean in 1922. In 1927, Lennings undertook more thorough study of the combustion zone in a 525-m~3 German furnace, with a blast temperature of 600-700 deg C. In the Soviet Union, the study of combustion underwent extensive development in the 1930s. Experimental data obtained by I. Z. Kozlovich, D. V. Efremov, N. I. Krasavtsev, N. N. Kruglov, Z. I. Nekrasov, and L. M. Tsylev formed the basis for evaluating the influence of the blast parameters and the coke quality on what was then regarded as the most important characteristic of furnace operation: the extent of the tuyere region. Generalization of these data [1] led to the characterization of the coke consumption as the layer-by-layer combustion of coke fuel.
机译:通过目视检查风口区域以及铁水和炉渣的成分和分布来评估炉膛的状态。迄今为止,几乎没有尝试将高温计安装在风口的检查孔和风口末端的热电偶上。因此,在缺乏有关风口区域的过程和炉膛中焦炭运动机理的连续信息的情况下,技术人员很难就炉膛状态形成清晰的想法。长期以来一直认为,由爆炸通风的燃烧区是高温还原气体的来源。区域的尺寸与炉子的工艺和参数有关。因此,通过将铁探针穿过风口检查孔直至遇到致密的批料层,定期手动检查焦炭燃烧程度。 1844年,埃贝尔曼首先在法国的木炭和焦炭焦炉中研究了气体成分。 1892年,Van-Vloten在炉膛直径为3 m的德国焦炭高炉中研究了燃烧过程。美国在1922年由Pirrot和Kean获得了有关风口区域气体组成的第一份数据。1927年,Lennings对525 m〜3的德国高炉在爆炸温度下的燃烧区进行了更彻底的研究。 600-700摄氏度。1930年代在苏联,燃烧研究得到了广泛的发展。 IZ Kozlovich,DV Efremov,NI Krasavtsev,NN Kruglov,ZI Nekrasov和LM Tsylev获得的实验数据构成了评估高炉参数和焦炭质量对后来被认为是熔炉运行最重要特征的影响的基础。 :风口区域的范围。这些数据[1]的一般化导致了焦炭消耗的表征为焦炭燃料的逐层燃烧。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号