| 粉煤灰中未燃炭回收的试验研究 |
| |
| 引用本文： | 黄川,曹亦俊,刘长青,冉进财. 粉煤灰中未燃炭回收的试验研究[J]. 矿产综合利用, 2017, 38(3) |
| |
| 作者姓名： | 黄川 曹亦俊 刘长青 冉进财 |
| |
| 作者单位： | 1.中国矿业大学 化工学院 |
| |
| 基金项目： | 高等学校博士学科点专项科研基金资助项目(20120095110021); 国家自然科学基金面上项目“51274198” |
| |
| 摘 要： | 用粒度分析、X射线衍射和X荧光分析等手段对山西某电厂的粉煤灰的物理化学性质进行分析。对试验样进行了浮选机探索试验和浮选柱工艺优化试验。研究结果表明,优化工艺条件为柴油捕收剂用量400 g/t,起泡剂用量400 g/t,矿浆浓度15%,循环压力0.10 MPa,泡沫层高度3 cm,可得到产率为75.99%的尾灰,烧失量为1.17%,精煤产率为24.01%,烧失量为52.47%。在尾灰烧失量达到一级粉煤灰的指标要求下,柱式浮选的产率要高于浮选机的产率。
|
| 关 键 词： | 粉煤灰 未燃炭 浮选柱 |
| 收稿时间： | 2016-04-09 |
| 修稿时间： | 2016-06-16 |
Experimental study on the recovery of unburned carbon from coal fly ash |
| |
| Huang Chuan,Cao Yijun,Liu Changqing and Ran Caijin. Experimental study on the recovery of unburned carbon from coal fly ash[J]. Multipurpose Utilization of Mineral Resources, 2017, 38(3) |
| |
| Authors: | Huang Chuan Cao Yijun Liu Changqing Ran Caijin |
| |
| Affiliation: | 1.School of Chemical Engineering and Technology. China University of Mining and Technology2.National Engineering Research Center of Coal Preparation and Purification |
| |
| Abstract: | The test sample for the fly ash was characterized by size fraction ,X-ray diffraction and X-ray fluorescence.This test has carried on the flotation machine to test sample exploring experiment and process optimization.Within the range studied, the collecting agent is 400g/t,the optimum frother dasage is 400g/t,concentration is 15%,froth thickness is about 3cm and circulating pressure is 0.10MPa.Get the productivity of tarling is 75.99%,a cleaning ash with 1.17%;and the productivity of clean coal is 24.01%,a cleaning ash with 52.47%. Column flotation yield is higher than the yield of the flotation machine at the end of the indicator reached levels ash loss on ignition of fly ash. |
| |
| Keywords: | coal fly ash unburned carbon flotation column |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《矿产综合利用》浏览原始摘要信息 |
|
点击此处可从《矿产综合利用》下载免费的PDF全文 |
|
