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姚建新. 粉煤灰对矿渣棉用调质高炉渣析晶性能的影响[J]. 科学技术与工程, 2019, 19(36): 388-393.
Yao Jianxin.Effect of Fly Ash on Crystallization Properties of Modified Blast Furnace Slag for Preparing Slag Cotton[J].Science Technology and Engineering,2019,19(36):388-393.
粉煤灰对矿渣棉用调质高炉渣析晶性能的影响
Effect of Fly Ash on Crystallization Properties of Modified Blast Furnace Slag for Preparing Slag Cotton
投稿时间:2019-05-08  修订日期:2019-06-19
DOI:
中文关键词:  
英文关键词:blast  furnace slag, fly  ash, slag  fiber, crystallization
基金项目:
  
作者单位
姚建新 邯郸钢铁集团有限责任公司设备运行保障公司
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中文摘要:
      为了探究粉煤灰添加量对高炉渣基矿渣棉制备过程中调质高炉熔渣析晶性能的影响,利用Factsage热力学软件模拟了不同粉煤灰添加量时调质高炉熔渣渣降温过程中的理论析晶温度和析晶种类及含量,并利用XRD、SEM、熔渣结晶性能测定装置定性分析了不同粉煤灰添加量调质高炉熔渣的析晶行为。结果表明:调质高炉熔渣理论析晶温度随粉煤灰添加量的增加逐渐降低;当粉煤灰添加量高于15%后,调质高熔渣温度降至1000℃时仍为玻璃相,未发生析晶,此时熔渣析晶不再是矿渣棉成型的限制环节;基于调质高炉熔渣成纤过程的实际工况,XRD分析结果更具有参考性。
英文摘要:
      In order to explore the effect of the addition of fly ash on crystallization performance of molten modified slag in the preparation progress of blast-furnace-slag-based slag fiber, theoretical crystallization temperature and species and contents of precipitated phases at different addition of fly ash in cooling process of modified slag were simulated by FactSage thermodynamic software and crystallization behavior of molten modified slag with different addition of fly ash was analyzed by XRD and SEM. The results indicated that theoretical crystallization temperature of molten modified slag gradually decreased with the increase of addition of fly ash. Crystallization behavior did not occur staying as glass phase at 1000℃ when the addition of fly ash exceed 15%. It means that the crystallization of molten slag was not the restricted condition of slag fiber forming. Based on the actual working conditions of the fibrillation process of quenched and tempered blast furnace slag, the results of XRD analysis are more referential.
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