کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1637602 | 1516972 | 2014 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Loose-stratification model in separation process for vanadium pre-concentration from stone coal
ترجمه فارسی عنوان
مدل شبیه سازی در فرآیند جداسازی برای غلظت وانادیم از ذغال سنگ
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کلمات کلیدی
مدل شتابزدایی، پیش غلظت، سنگ زغال سنگ، فرایند جداسازی،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
چکیده انگلیسی
A technology of one-stage roughing and one-stage scavenging vanadium pre-concentration with shaking table was investigated for improving vanadium grade and decreasing acid consumption minerals content based on the quantitative evaluation of minerals by scanning electronic microscopy (QEMSCAN). In order to visually illustrate how the vanadium-bearing minerals were separated from system, a loose-stratification model was established with Bagnold shear loose theory and Kelly stratification hypothesis. Through the model, it was inferred that fine fraction and coarse fraction of vanadium-bearing muscovite particles easily became the concentrate in roughing and scavenging stages, respectively. The type of the dominant effect on the loose-stratification was confirmed. In the roughing stage, gravity sedimentation played a leading role in the loose-stratification process. However, in the scavenging stage, shearing dispersion pressure caused by asymmetric motion of table deck took an important part in the loose-stratification process. Finally, the correction of the loose-stratification model was validated by the practical experiment.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Transactions of Nonferrous Metals Society of China - Volume 24, Issue 2, February 2014, Pages 528-535
Journal: Transactions of Nonferrous Metals Society of China - Volume 24, Issue 2, February 2014, Pages 528-535
نویسندگان
Yun-liang ZHAO, Yi-min ZHANG, Shen-xu BAO, Tao LIU, Ying BIAN, Mou-feng JIANG, Xiang LIU,