论文部分内容阅读
为了对熔渣的纤维化机理及其影响因素进行分析,利用离心成纤方法对熔融高炉渣的纤维化过程进行了试验研究,结合试验研究结果,分析了高炉渣纤维长度与直径的影响因素,主要是熔渣纤维化过程和矿渣纤维受到高炉渣成分及辊轮直径、辊轮转速、出渣温度等参数的影响。根据试验条件,确定了容易纤维化的倾倒温度为1 450℃,离心机4个辊转速分别为3 840、4 620、5 220、5 820 r/min。结果表明,熔渣的We数达到4.23×106~4.28×106、Oh数达到3.81×10-2~4.56×10-2时,较适宜熔渣的纤维化分解,这两个参数反映了影响熔渣纤维化的各因素间的关系,并最终确定了试验条件下纤维直径和纤维长度的表达式。
In order to analyze the mechanism of the fibrosis of slag and its influencing factors, the fiberization process of the molten blast furnace slag was studied by centrifugal fiber-forming method. Combined with the experimental results, the influencing factors of the length and diameter of the blast furnace slag were analyzed. Mainly due to the slag fiberization process and slag fiber by blast furnace slag composition and roller diameter, roller speed, slag temperature and other parameters. According to the test conditions, the pouring temperature for easy fibrosis was determined to be 1 450 ° C, and the rotational speeds of the four rollers of the centrifuge were 3 840, 420 620, 5220 and 5220 r / min, respectively. The results show that when the We of slag reaches 4.23 × 106 ~ 4.28 × 106 and the number of Oh reaches 3.81 × 10-2 ~ 4.56 × 10-2, it is more suitable for the fibrillar decomposition of the slag, The relationship between the various factors of slag fiberization, and finally determine the expression of fiber diameter and fiber length under test conditions.