超细粉碎对超细煤解离度的影响研究  

Study on Influence of Ultrafine Grinding on Dissociation Degree of Ultra-fine Coal

作　　者：王婕 李琼 付晓恒[3] WANG Jie;LI Qiong;FU Xiaoheng(College of Civil Engineering,Taiyuan University of Technology,Taiyuan 030600,China;Shanxi Institute of Geology and Mineral Resources Company Limited,Taiyuan 030001,China;School of Chemical and Environmental Engineering,China University of Mining and Technology-Beijing,Beijing 100083,China)

机构地区：[1]太原理工大学土木工程学院,太原030600 [2]山西省地质矿产研究院有限公司,太原030001 [3]中国矿业大学(北京)化学与环境工程学院,北京100083

出　　处：《煤炭技术》2023年第7期235-237,共3页Coal Technology

基　　金：山西省青年科技研究基金(201901D211040)。

摘　　要：获得超净煤的前提是通过超细粉碎实现煤颗粒中有机质与无机矿物的充分解离。除颗粒粒度、无机矿物嵌布状态之外,超细粉碎方式也是影响解离度的重要因素。以神木不黏煤为样品,选取湿法和干法2种超细粉碎方式,采用煤岩组分图像分析和酸碱脱灰方法,定量评价煤颗粒超细粉碎后的单体解离度。结果表明,神木不黏煤在超细粉碎至10μm左右时,无机矿物已实现较好的解离。与搅拌磨相比,经气流磨超细粉碎后的超细煤解离度较好。The premise of obtaining ultra clean coal is to achieve full dissociation of organic matter and inorganic minerals in coal particles by ultra-fine grinding.In addition to particle size and inorganic mineral dissemination characteristics,ultra-fine grinding process is also an important factor affecting the degree of dissociation.Shenmu non-coking coal was selected as the sample,two ultra-fine grinding methods were selected.The dissociation degree after ultra-fine grinding of coal particles was quantitatively evaluated by image analysis of coal components and acid-base deashing methods.The results show that when Shenmu non-coking coal is pulverized to about 10 μm,the inorganic minerals have achieved better dissociation.The dissociation degree of ultra-fine coal grinded by airflow mill is better than that grinded by stirred mill.

关 键 词：超细粉碎 解离度 矿物组分 酸碱脱灰 

分 类 号：TD94[矿业工程—选矿]