气流粉碎-分级过程煤中矿物质迁移特征  

Mineral Migration Characteristics of Coal in Air Jet Pulverization-classification Process

作　　者：宋文革[1] 陶亚东[1] 朱子祺[1,2] 张佳彬 孙国兴[1] 何创库 李鹏[1] 葛家君 崔学奇 李振[4] SONG Wen-ge;TAO Ya-dong;ZHU Zi-qi;ZHANG Jia-bin;SUN Guo-xing;HE Chuang-ku;LI Peng;GE Jia-jun;CUI Xue-qi;LI Zhen(Shenhua Shendong Coal Group Limited Liability Companies,Yulin 719315,China;China University of Mining and Technology,Xuzhou 221116,China;Weihai Haiwang Hydroeyclone Co.,Ltd.,Weihai 264204,China;Xi＇an University of Science and Technology,Xi＇an 710054,China)

机构地区：[1]神华神东煤炭集团有限责任公司,陕西榆林719315 [2]中国矿业大学,江苏徐州221116 [3]威海市海王旋流器有限公司,山东威海264204 [4]西安科技大学,西安710054

出　　处：《煤炭技术》2018年第11期325-327,共3页Coal Technology

基　　金：国家自然科学基金项目(51404194)

摘　　要：为了探索高效的破碎解离分选技术,以神东上湾煤为研究对象,采用气流粉碎-分级系统进行煤中矿物质的迁移特征研究。结果表明:在冲击粉碎-分级作用下,布袋产品的灰分、硫分均较高,中间产物分级二产品的灰分、硫分含量较低,表现出较明显的提质特征。分级产品中灰分梯度和硫分梯度最高达到11.27%、0.42%。矿物质在分级产品中出现了明显的迁移特征。In order to explore an efficient pulverization liberation and separation technology, the Shangwan coal of Shenhua Shendong coal group limited liability companies was used as object of study, and the mineral migration characteristics of coal have been researched by air jet pulverization-classification system. The results show that the ash content and sulfur content of bag filter are higher, while that of intermediate product of classified-Ⅱproduct is relatively lower under the effect of impact pulverization-classification, which represents an obvious quality-upgrading characteristic. The highest ash content gradient and sulfur content gradient between classified products are 11.27% and 0.42% respectively. The minerals of classified products appear an obvious migration characteristic.

关 键 词：气流粉碎 矿物质迁移 特征 

分 类 号：TD92[矿业工程—选矿]