摘要
以改质沥青为粘结剂、电煅无烟煤和沥青焦为骨料,研究骨料粒度、加热温度、保温时间及振动次数对改质沥青浸润性的影响,并对不同粒度分布的电煅无烟煤和沥青焦的比表面积进行测定。结果表明,随着骨料粒度的减小,骨料颗粒的比表面积逐渐增大;改质沥青对电煅无烟煤和沥青焦的浸润性均随骨料粒度的减小和振动次数的增加而大幅度降低,随加热温度和保温时间的增加而逐渐增大。通过适当调整骨料粒度分布、加热温度、保温时间、振动次数等工艺参数,能够改善改质沥青对电煅无烟煤和沥青焦的浸润效果。
Effects of aggregate size, heating temperature, holding time, and vibration number on wettability of modified pitch were investigated with modified pitch as binder, calcined anthracite and pitch coke as aggregate. Specific surface area of calcined anthracite and pitch coke with different particle size distribution were measured by automatic surface area and porosity analyzer. The results indicate that specific surface area of aggregate particles rises with drop of aggregate size. Wettability of modified pitch on calcined anthracite and pitch coke is greatly reduced with drop of aggregate size and increase of vibration time, and rises with increase of heating temperature and holding time. It is possible to improve the wetting effect of modified pitch on calcined anthracite and pitch coke by appropriately adjusting aggregate size, heating temperature, holding time, and vibration number.
出处
《有色金属（冶炼部分）》
CAS
北大核心
2017年第9期27-31,共5页
Nonferrous Metals（Extractive Metallurgy)
基金
贵州省科学技术基金(黔科合J字[2013]2221号)
贵州省教育厅专业综合改革试点项目(黔教高发[2013]446)
贵阳市白云区科技计划项目(白科合同[2013]40号)
关键词
浸润性
改质沥青
电煅无烟煤
沥青焦
铝用炭素材料
wettability
modified pitch calcined anthracite
pitch coke carbon materials for aluminum electrolysis
