摘要
为探究高能振动磨制备水泥的粉磨特性,以比表面积1 850cm^(2)/g的水泥半成品为实验原料,研究了高能振动磨粉磨时间、料球比、研磨体尺寸及填充率等关键控制参数对水泥比表面积和粉磨电耗的影响。结果表明:高能振动磨具有较好的水泥粉磨能力,其粉磨效率随着粉磨时间的延长而逐渐降低,水泥比表面积与粉磨时间的对数存在良好的线性关系。在兼顾粉磨效率与生产能力的同时,高能振动磨料球比和研磨体填充率均存在适宜的关键参数区间,研磨体尺寸微型化可进一步提高其细磨能力。在料球比8%、钢球直径Φ6mm、填充率80%的实验条件下,高能振动磨粉磨效率最高,粉磨5min时水泥比表面积可达3 486cm^(2)/g,粉磨电耗为17.9kW·h/t。
In order to explore the cement grinding characteristics of high-energy vibrating mill,the semi-finished cement with a specific surface area of 1850cm^(2)/g was used as the raw material.The control parameters such as grinding time,mass ratio of cement-to-ball,specification and filling rate of the ball mill on the specific surface area of products and power consumption of vibration were studied.The results show that the high-energy vibrating mill has a good grinding grind ability,the grinding efficiency decreased with the increasing of grinding time,and there is a good linear relationship between the logarithm of cement specific surface area and grinding time.While taking into account the grinding efficiency and production capacity,there is a suitable key parameter intervals existing for both mass ratio of cement-to-ball and filling rate.The miniaturization of the ball mill size can improve the fine grinding capacity.Under the experimental conditions of 8%mass ratio of cement-to-ball,80%filling rate with theϕ6mm steel ball,the specific surface area of product can reach 3486cm^(2)/g after grinding for 5min.The grinding power consumption is 17.9kW·h/t.
作者
李铭哲
杜鑫
秦中华
聂文海
LI Mingzhe;DU Xin;QIN Zhonghua;NIE Wenhai(Tianjin Cement Industry Design&Research Institute Co.,Ltd.,Tianjin 300400,China)
出处
《水泥技术》
2024年第5期59-64,共6页
Cement Technology
关键词
高能振动磨
料球比
研磨体填充率
节能降耗
high-energy vibrating mill
mass ratio of cement-to-ball
filling rate of the ball mill
reduction of the energy consumption
