针对目前高灰难选煤泥浮选精煤灰分高、回收率低的难题,提出高效调浆是解决问题的有效途径。从煤泥高效调浆着手,介绍了调浆搅拌技术及理论的研究进展,并对现有煤泥调浆设备的应用及存在问题进行了介绍。在对现有提高调浆效果的理论、方法及技术研究现状进行综述性评价的基础上,探究了煤泥调浆对浮选过程的影响及其规律性,提出了今后煤泥调浆技术研究应从以下4方面展开:研究药剂分散、颗粒分散与表面改性、颗粒碰撞与有效吸附等过程的机理;研究各种搅拌叶轮结构下矿浆的流场变化情况;研究不同煤质及粒度组成下剪切强度对调浆效果的影响;开发新型高效煤泥调浆设备,以满足微细难选煤泥浮选工艺的需求。

According to the present high ash content, low coal recovery rate and other dfficultes in the high ash and dificult prepared slime floatation, the paper pr ovided that the high efficient slime water slurry blending could be the effective access to solve the above difficulties.From the high efficient slime water slurry blending, t he paper introduced the study progress of the mixing technology and theory for the slime water slurry and introduced the application and existing problems of the availa ble slime water slurry blending equipment.Based on the comprehensive evaluation on the theory, method and technical study status to improve the slime water slurry bl ending effect, the paper studied the slime water slurry blending affected to the floatation process and the law.The paper provided that the study on the slime water slurr y preparation technology in the near future should be conducted on the following four areas, including the study on the mechanisms of the agent dispersion, the particle dispersion and surface modification, the particle clashing and effective adsorption processes, the study on the flow field variation of the slime slurry under the different mixing vane structures, the study on the shear strength affected to the slime water slurry effect under the different coal quality and particle components, the developme nt of the new high efficient slime water slurry blending equipment in order to meet the requirement of the fine and difficult preparation slime floatation technique.

国家高技术研究发展计划(863计划)资助项目(2007AA05Z339)；