论文部分内容阅读
从炉缸结构设计关键要素的分析着手,从侵蚀机制、炉缸传热体系的建立到炉缸的设计理念对炉缸的长寿进行了全面的论述。指出高炉长寿的关键控制环节为:设计、施工、烘炉、开炉节奏、操作稳定、维护管理。在合适的炉缸冷却系统和结构配置条件下,有效杜绝和防止气隙是炉缸长寿的关键。设计要有完善的防止气隙的措施;安装中要严格控制每一个环节;采用热水烘炉提高炉墙温度,促进水分蒸发;控制高炉开炉进程,给予新高炉一个磨合期,保证炉缸的传热体系可靠、有效,以实现炉缸的无气隙化操作。无论炉缸耐材采用何种配置结构和采用何种冷却系统,都必须以建立良好的传热体系为前提,只有尽快形成稳定的渣铁壳,才能实现炉缸的长寿。
Starting from the analysis of the key elements in the structural design of the hearth, this paper gives a comprehensive exposition of the long life of the hearth from the mechanism of erosion, the establishment of heat transfer system in the hearth and the design concept of the hearth. The key control aspects of blast furnace longevity are pointed out as follows: design, construction, ovens, open rhythm, stable operation, maintenance and management. In the appropriate furnace cooling system and structure configuration conditions, effectively eliminate and prevent the air gap is the key to hearth longevity. The design should have perfect measures to prevent the air gap; every step should be strictly controlled in the installation; the temperature of the furnace wall should be raised by the hot water to promote the evaporation of the water; the blast furnace should be controlled to open the blast furnace; a run-in period should be given to the new blast furnace to ensure that the hearth The heat transfer system is reliable and effective, in order to achieve the air-gap operation of the hearth. Regardless of the configuration of the furnace refractory structure and what kind of cooling system should be used to establish a good heat transfer system as a prerequisite, and as soon as possible to form a stable slag iron shell in order to achieve the long life of the hearth.