环保型快速烧结转炉大面修补料的研制及应用

发布时间：2018-02-03 12:33

本文关键词： 转炉大面修补料环保型快速烧结改性沥青助烧剂　出处：《耐火材料》2017年04期 　论文类型：期刊论文

【摘要】：为了减少对环境的污染,提高转炉大面修补料的使用寿命,采用中档镁砂、电熔镁砂为主要原料,引入结合剂、助烧剂、防氧化剂,多元醇为助流剂,环保无烟油类物质作为润湿剂制备了修补料。研究了助烧剂(铁红粉、Al粉和镁橄榄石细粉)、防氧化剂(Al粉、Si粉和Si C粉)及结合剂(高温改性沥青、中温改性沥青)的种类对转炉大面修补料性能的影响。结果表明:以中档镁砂、电熔镁砂为主原料,0.5%(w)的Al粉和1.5%(w)的Si粉复合作为防氧化剂和助烧剂,高温改性沥青与中温改性沥青分别为8.5%、4%(w)作为结合剂时,辅以少量的液体润湿剂和助流剂生产的转炉大面修补料,其环保性好,能快速烧结,强度高,寿命长(平均寿命超过34炉)。
[Abstract]:In order to reduce the pollution to the environment and improve the service life of the converter large surface mending material, the medium grade magnesia and fused magnesite are used as the main raw materials, the binder, the sintering aid, the anti-oxidant and the polyol are used as the flow aids. The non-smokeless oil was used as the wetting agent to prepare the mending material. The sintering aids such as iron red powder and fine magnesium olivine powder and anti-oxidant powder were studied. The effects of the types of Si and sic powder and binder (high temperature modified asphalt, medium temperature modified asphalt) on the properties of converter large surface patching materials. The results show that medium grade magnesia and fused magnesite are the main raw materials. The composite of Al powder and Si powder of 0.5 ww and 1.5 wW) is used as anti-oxidant and sintering aid, respectively, and the mixture of high-temperature modified asphalt and medium-temperature modified asphalt is 8.5% and 4.5% respectively. With a small amount of liquid wetting agent and fluid-aid agent, the converter has good environmental protection, high strength and long life (the average life is more than 34 heats).
【作者单位】：武汉如星科技有限公司;武汉市光谷第六小学;
【分类号】：TF576.4;TQ175.7
【正文快照】： 转炉大面修补料,又称为转炉热态修补料、补炉砂或转炉投补料,是保护转炉炉衬、延长转炉炉龄的最重要的维护材料之一。它是利用人力或是废钢溜槽以投入的方式进行施工的混合料,用来修补装料侧炉壁(称为前大面)、出钢侧炉壁(称为后大面)和炉底及出钢口附近的凹槽等损耗部位[1]。

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