文献类型：期刊文献

中文题名：微扰动平推流氧化铝晶种分解技术研究与实践应用

英文题名：Research and Practical Application of Micro-perturbation Flat-flowing Alumina Seed Crystal Decomposition Technology

作者：苏向东 丁元法 秦庆东 吴海文 李其贵 李国乾 李丹宁 罗源 彭梯礼

机构：[1]贵州理工学院贵州省轻金属材料制备技术重点实验室,贵阳550003;[2]贵州科学院贵州省新材料研究开发基地,贵阳550002;[3]中国铝业股份有限公司,北京100082

第一机构：贵州理工学院

年份：2019

卷号：9

期号：3

起止页码：62-68

中文期刊名：有色金属工程

外文期刊名：Nonferrous Metals Engineering

收录：CSTPCD;;北大核心:【北大核心2017】；

基金：国家科技支撑计划项目(2013BAC15B00);贵州省普通高等学校工程研究中心建设项目(黔教合KY字[2017]021)~~

语种：中文

中文关键词：氧化铝;微扰动平推流;晶种分解;工业应用

外文关键词：alumina;micro-perturbation flat-flowing;seed crystal decomposition;industrial application

摘要：针对传统氧化铝晶种分解工艺长期采用全混合分解强力搅拌物料的技术路线,分析了当前国内外晶种分解工艺技术与装备能耗高、投入大的原因。通过研究晶种分解动力学与流体力学模拟计算,提出了氧化铝晶种分解过程中可以减弱搅拌强度,简化装备结构,从而实现节能降耗,节省投资的新路径。开发出微扰动平推流氧化铝晶种分解新技术及其装备,并应用于工业生产。结果与传统分解槽相比生产过程平均节能42.5%;分解槽运行周期平均延长2.5个月;底部结疤高度由2.5m降为0.5m;产品产出率和粒度分布等各项指标正常。
In a long term,overall-mixing decomposition and strong agitation mode is employed in the traditional alumina seed crystal decomposition technology.In this paper,the causes of the high energy consumption and high investment cost of the seed crystal decomposition process technology and equipment at home and abroad are studied.By studying the decomposition kinetics of the seed crystal and the simulation of fluid mechanics,a new path is proposed to reduce the stirring strength and simplify the equipment structure during the decomposition process of alumina seed crystals,thereby achieving energy saving and saving investment.Based on this new technique,a new alumina seed crystal decomposition technique and equipment referred to as'micro-perturbation flat-flowing'is presented and applied in the industrial level,correspondingly.The results of industrial application showed that the average power saving rate of 42.5%could be reached compared with the traditional decomposition tank,and the equipment operation cycle was extended by 2.5 months on average;the bottom crusting height within the decomposition tank was reduced from 2.5 to 0.5 m;the output yield of particle size distribution were normal.micro-perturbation,push-pull flow;seed crystal decomposition;industrial application.