氧化铝矿浆磨节能技术改造

Technical Transformation of Energy Saving of Pulp Mill in Alumina Production

本文主要研究了氧化铝生产中的矿浆制备系统,通过一系列措施优化矿浆磨结构和系统配置达到节能降耗的目的。通过优化磨体内隔仓板结构,提高磨机过料能力,解决矿浆磨满磨现象;通过优化磨机内研磨体填充率及级配,提高磨机破碎和研磨性能,做到降耗增效;同时通过优化矿浆辅机旋流器结构,采用先进的进料方式提高分级效果,使矿浆在较粗的粒度下也有较好的溶出率。

In this paper,the pulp preparation system in alumina production was studied,the structure and system configuration of the pulp mill were optimized by a series of measures to achieve the purpose of energy saving and consumption reduction.By optimizing the structure of the division plate in the mill,the material passing capacity of the mill was improved,and the phenomenon of full mill was solved;by optimizing the filling ratio and gradation of the grinding media in the mill,the crushing and grinding performance of the mill was improved,with realizing consumption reduction and efficiency increment;and by optimizing the structure of the cyclone of the pulp auxiliary,the advanced feeding method was adopted to improve the classification effect,so that a better leaching rate of the pulp could be obtained under a relatively coarse size.