武钢炼铁热风管系耐火材料破损分析与选材思考

发布时间：2018-02-23 13:12

本文关键词： 热风管耐火材料炼铁高炉热风炉　出处：《耐火材料》2017年04期 　论文类型：期刊论文

【摘要】：为了系统掌握武钢炼铁系统热风管系耐火材料的使用状况,提高其使用寿命,对武钢5座高炉热风炉的热风管系的砖衬破损情况进行了跟踪调研。结果显示:质量优良、砌筑结构适当的工作层砖衬配合高温性能好的轻质隔热砖可以保证16年以上的使用寿命,但三岔口和管内顶部砖衬的开裂剥落是影响管系长寿运行的薄弱环节。热风管系事故频繁的原因,除了砖衬材质不当、低价引入伪劣产品以及砌筑问题外,也与热风气体中含锌、碱金属等因素有关。管道内表面砖衬由于锌、碱金属的作用,会出现疏松、剥落等现象。建立适宜的热风管系耐火材料标准,杜绝低价中标,处理好管系内气体的富锌和碱金属局部富集问题,有利于提高热风管系的使用寿命,维持高炉炼铁的稳定运行。
[Abstract]:In order to systematically grasp the use of refractory material of hot air pipe system in iron making system of WISCO, and to improve its service life, the damage of brick lining of hot air pipe system in 5 blast furnace of Wuhan Iron and Steel Co., Ltd was investigated and tracked. The results show that the quality is good. The suitable working layer brick lining of the masonry structure can guarantee the service life of more than 16 years with the light heat insulation brick with good high temperature performance. But the cracking and peeling of the brick lining at the fork and the top of the pipe is the weak link that affects the long run of the pipe system. Besides the improper material of the brick lining, the introduction of fake and inferior products at low price and the problems of masonry, the frequent accidents of the hot air pipe system are the main reasons for the frequent accidents. It is also related to the factors such as zinc and alkali metal in the hot air gas. Because of the action of zinc and alkali metal, the lining of the inner surface of the pipe will appear loose and exfoliate. Establish the suitable standard of refractory material for the hot air pipe, and put an end to the low price of winning the bid. It is helpful to improve the service life of hot air pipe system and maintain the stable operation of blast furnace ironmaking by dealing with the problem of local enrichment of zinc and alkali metals in pipe system.
【作者单位】：武汉钢铁股份有限公司研究院;武汉钢铁股份有限公司炼铁厂;武汉钢铁股份有限公司设备部;
【分类号】：TF573.3;TQ175.7

【相似文献】