摘要
采用添加絮凝剂沉降的方法，研究了烧结法熟料高浓度溶出浆液的分离性能，并研究了各因素对沉降分离性能的影响规律。结果表明：Al2O3，浓度大于180g／L，絮凝剂为A11，90℃进行沉降时，前5min沉淀高占浆液总高的30％～40％，60min底流压缩液固比在5～6之间；适当增加絮凝剂量和提高熟料粒度，均有利于浆液沉降；溶液Na2Oc浓度和αk升高不利于浆液沉降。
The settlement properties of high concentration slurry in sinter process and the effects of different factors on the settlement properties were studied by using the method of adding flocculant. The results show that when the concentration of Al2O3 is above 180 g/L, the flocculant is All and the temperature is 90 ℃, the height ratio of bottom flow to the whole flow is from 30% to 40% in 5 minutes and the mass ratio of liquid to solid of bottom flow is about 5 - 6 in 60 minutes. The increase of floceulant amount and particle size of the agglomerated material favored the settlement of slurry while the increase of the concentration of Na2Oc and αk didn＇t favor the settlement of slurry.
出处
《矿冶工程》
CAS
CSCD
北大核心
2009年第1期59-62,66,共5页
Mining and Metallurgical Engineering
基金
国家重点基础研究发展规划项目(2005CB623702)
关键词
氧化铝
烧结法
高浓度
浆液
沉降
絮凝剂
aluminium oxide
sintering process
high concentration
slurry
settlement
flocculant
