煤炭表面改质技术及设备在东曲矿选煤厂的应用

阐述了一种新型的采用高剪切力的煤炭表面改质技术及设备在东曲矿选煤厂的应用,该厂通过对表面改质机内部结构与工作过程的分析研究,以及单机试验和工业运行试验,初步探讨了表面改质机的作用机理,经现场连续带负荷生产后,能显著提高浮选速度和精煤回收率.

Application of a New Coal Surface-changing Technique and Equipment in Dongqu Coal Preparation Plant

this article aims to introduce a new coal surface--changing technique,by which the surface -changing effect of coal and the distinguish between coal and gangue can be greatly improved, there achieved a better floatation agent creating mechanical force--chemical effect. This technique offers a new. highly efficient method of coal preparing, especially for those coals which are difficult to float. It has studied the operation mechanism and illustrated the significant effect on speeding the flotation preparing and clean coal recycling by the rate of 9.9 %.