高炉合理鼓风动能与炉缸活性的关系

Relationship between reasonable blast kinetic energy and hearth activity in blast furnace

通过分析高炉鼓风动能与炉缸活性的关系,认为合理的鼓风动能不仅是保持炉缸活性良好的前提条件,更是高炉操作者调节炉况的重要手段之一。通过研究合理鼓风动能的理论依据和计算方法,发现高炉合理鼓风动能不仅需要随着高炉容积的增大而增大,而且需要有合理的风量和风口面积。通过比较不同容积高炉所对应的风量,提出了风量比和风量系数的概念;介绍了本钢新1号高炉通过调节风口面积探索合理鼓风动能的过程。对高炉在不同鼓风动能条件下所产生的各种直观现象和仪表变化进行了说明,针对这些现象就可以判断出鼓风动能是否在合理范围内,并进行相应的调节。因此,合理的鼓风动能需要适应高炉生产的各方面条件的变化,这就需要对合理鼓风动能进行不断的探索和实践,以形成应变的合理的送风制度,确保高炉生产长期稳定顺行。

By analyzing the relationship between the reasonable blast kinetic energy and the hearth activity in blast furnace,that blast kinetic energy is not only the premise of a good hearth activity,but also one of the most important means to operate blast furnace for the operators. It was found that the reasonable blast kinetic energy increased with the increase of blast furnace volume and needed reasonable blast volume and tuyere area by study the theoretical basis and calculation method of the blast kinetic energy. By comparing the blast volumes of different blast furnaces,the concepts of blast volume ratio and blast volume coefficient were put forward. The details of exploring reasonable blast kinetic energy by adjusting the tuyere area of BX Steel new No.1 blast furnace were introduced. What＇s more,various phenomena in blast furnace with different blast kinetic energies were also clearly illustrated,which could help the operator to judge whether the blast kinetic energy was in a reasonable range or not,and then adjust accordingly. In conclusion,the reasonable blast kinetic energy must adapt to the change of the various conditions during blast furnace production,which requires constant exploration to form the on-demand and reasonable blast system that could ensure the long-term stability of the blast furnace production.