摘要
为实现竖式造气炉的正常运行,实现液态排渣,本文采用RTW熔体物性测定仪研究了添加剂CaO、MgO、CaF_2和MnO2对灰渣黏度和熔化性温度的影响规律。结果表明:随CaO添加量的增加,灰渣黏度和熔化性温度都先降低后升高,CaO添加量为6%时,灰渣的流动性最好,适宜的CaO添加量为4%～6%;灰渣黏度和熔化性温度都随着CaF_2添加量的增加而降低,综合考虑CaF_2对造气炉的影响,认为适宜的CaF_2添加量为4%左右;随着MgO添加量的增加,灰渣熔化性温度和黏度先降低后升高,在添加量为6%时,灰渣的流动性最好,适宜的MgO添加量为4%～6%;灰渣黏度和熔化性温度随着MnO2添加量的增加而降低,当MnO2添加量高于6%,其对灰渣流动性的改善幅度较小,适宜的MnO2添加量为4%～6%。四种添加剂中,MnO2对灰渣黏度的降低作用最显著,CaF_2对降低熔化性温度的作用最显著。
In order to realize the normal running of the gas furnace and slag removal with liquid, the effects of additives CaO, MgO, CaFE and MnO2 on the viscosity and melting temperature of slag were studied by RTW melting point physical property tester. The results show that with the increase of CaO addition, the viscosity and melting temperature of slag decrease first and then increase. When the addition amount of CaO is 6%, the slag has the best fluidity, and the suitable CaO addition amount is 4%-6%; The viscosity and melting temperature of slag decrease with the increase of CaF2 addition. Considering the influence of CaF2 on the gas furnace, it is considered that the suitable addition amount of CaF2 is about 4%. With the increase of MgO addition amount, the melting temperature and viscosity of slag decrease first and then increase. When the addition amount of MgO is 6%, the slag has the best fluidity, and the suitable addition amount of MgO is 4%-6%. The viscosity and melting temperature of slag decrease with the increase of MnO2 addition. When the addition amount of MnO2 is higher than 6%, the improvement of slag fluidity is small, and the suitable addition amount of MnO2 is 4%-6%. Among the four additives, MnO2 plays the most significant role in reducing ash viscosity, and CaF2 plays the most significant role in lowering the melting temperature.
作者
刘小杰
兰臣臣
朱二涛
吕庆
张淑会
Liu Xiaojie;Lan Chenchen;Zhu Ertaot;Lti Qingj;Zhang Shuhui(College of Metallurgy ＆ Energy,Ministry of Education Key Laboratory of Modern Metallurgy Technology,North China University of Science and Technology,Tangshan,Hebei,China;School of Metallurgy,Northeastern University,Shenyang,Liaoning,China)
出处
《矿产综合利用》
CAS
北大核心
2018年第5期33-37,共5页
Multipurpose Utilization of Mineral Resources
基金
国家自然科学基金重点支持联合基金资助项目(U1360205)
河北省重点研发计划自筹项目(162176440)
关键词
灰渣
添加剂
黏度
熔化性温度
造气炉
Slag
Additives
Viscosity
Melting temperature
Gas furnace
