| 煤粉分级浮沉试验方法的探索 |
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| 引用本文： | 孙再征,沈丽娟,高伟,常发军.煤粉分级浮沉试验方法的探索[J].矿山机械,2011(8). |
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| 作者姓名： | 孙再征 沈丽娟 高伟 常发军 |
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| 作者单位： | 中国矿业大学煤炭加工与高效洁净能源利用教育部实验室;河南神火兴隆矿业有限责任公司泉店选煤厂; |
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| 摘 要： | 分析了煤粉在离心力场或重力场中直接分级浮沉存在的问题,介绍了煤粉掺泥分级浮沉试验的原理。通过对单个煤粉颗粒在离心力场和重力场中的受力分析,提出了离心力场中煤粉掺泥分级浮沉试验的方法,并通过试验和t检验验证了试验的可行性,成功地解决了细粒煤粉分级浮沉周期长、成本高和各密度级物料混杂的问题。
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| 关 键 词： | 煤粉 分级浮沉 离心力场 掺泥 |
Exploration on methods of sedimentation test for gradation of coal fines |
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| SUN Zaizheng,SHEN Lijuan,GAO Wei,CHANG Fajun Key Laboratory of Coal Processing & Efficient Utilization,Ministry of Education,China University of Mining &Technology,Xuzhou ,Jiangsu,China Qu,ian Coal Washery,Henan Shenhuo Xinglong Mining Industry Co.,Ltd..Exploration on methods of sedimentation test for gradation of coal fines[J].Mining & Processing Equipment,2011(8). |
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| Authors: | SUN Zaizheng SHEN Lijuan GAO Wei CHANG Fajun Key Laboratory of Coal Processing & Efficient Utilization Ministry of Education China University of Mining &Technology Xuzhou Jiangsu China Qu ian Coal Washery Henan Shenhuo Xinglong Mining Industry Co Ltd |
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| Affiliation: | SUN Zaizheng1,SHEN Lijuan1,GAO Wei2,CHANG Fajun1 1Key Laboratory of Coal Processing & Efficient Utilization,Ministry of Education,China University of Mining &Technology,Xuzhou 221008,Jiangsu,China 2Quandian Coal Washery,Henan Shenhuo Xinglong Mining Industry Co.,Ltd. |
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| Abstract: | The paper analyzes the existing problems during direct gradation of coal fines in gravity fields or centrifuge fields, and introduces the principle of sedimentation test for gradation of slime-bearing coal fines. After the force analysis of single coal fine particle in gravity fields and centrifuge fields are carried out, the method of sedimentation test for gradation of slime-bearing coal fines in centrifuge fields is proposed, and it proves feasible through experiments and t test. It solves such the probl... |
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| Keywords: | coal fine gradation sedimentation centrifuge field slime-mixed |
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