Please wait a minute...
J4  2010, Vol. 44 Issue (6): 1133-1137    DOI: 10.3785/j.issn.1008-973X.2010.06.015
能源工程     
新疆石煤料团流化床焙烧提钒试验研究
李社锋, 方梦祥, 余斌, 周宛谕, 王勤辉, 施正伦, 骆仲泱, 岑可法
浙江大学 能源清洁利用国家重点实验室,浙江 杭州 310027
Experimental study on extraction of vanadium from Xinjiang stone coal pellets by roasting in fluidized bed combustor
LI She-feng, FANG Meng-xiang, YU Bin, ZHOU Wan-yu, WANG Qin-hui, SHI Zheng-lun, LUO Zhong-yang, CEN Ke-fa
 全文: PDF  HTML
摘要:

在一台小型流化床燃烧试验台上对新疆石煤料团进行了焙烧特性的试验,着重考察了焙烧温度、焙烧时间、流化风速、添加剂种类对焙烧成球率的影响,并对飞灰、底渣、床料进行收集采样,利用水浸、质量分数为2%的Na2CO3溶液、6%的H2SO4溶液、10%的H2SO4溶液对各种样品浸取提钒,研究了焙烧温度、焙烧时间、浸取方式对转浸率的影响.结果表明:采用水泥为添加剂,温度为930 ℃,焙烧时间为90 min,采用质量分数为10%的H2SO4溶液酸浸,可得较高焙烧成球率和转浸率,钒总回收率约为55.1%,同时可有效回收石煤热能,用于产汽发电.

Abstract:

A set of experiments were performed in a bench-scale fluidized bed combustor to study the roasting characteristic of Xinjiang stone coal pellets, focusing on the effect of various factors on the pelletremaining ratio after roasting, such as roasting temperature, roasting time, air velocity, additive. Fly ash, bottom ash and bed material were collected. V2O5 was extracted from the fly ash and bottom ash by deionized water, acid solutions of 2% (mass fraction) Na2CO3, 6% (mass fraction) H2SO4, 10% (mass fraction) H2SO4, while the influences of roasting temperature, roasting time, leaching mode on leaching rate were analyzed. The test results showed that with cement additive, 900 ℃ and roasting time of 90 min, by acid leaching using 10% (mass fraction) H2SO4, the excellent pelletremaining ratio after roasting and leaching rate were obtained, and the vanadium recovery rate was as high as 55.1%. Meanwhile, the heat energy of stone coal can be recovered effectively to generate steam and power.

出版日期: 2010-07-16
:  TQ 038.7  
基金资助:

国家“863”高技术研究发展计划资助项目(2007AA05Z334)

作者简介: 李社锋(1979—),男,河北隆尧人,博士,主要从事流化床燃烧技术及污染物排放控制的研究.E-mail: lishefeng@163.com
服务  
把本文推荐给朋友
加入引用管理器
E-mail Alert
RSS
作者相关文章  

引用本文:

李社锋, 方梦祥, 余斌, 周宛谕, 王勤辉, 施正伦, 骆仲泱, 岑可法. 新疆石煤料团流化床焙烧提钒试验研究[J]. J4, 2010, 44(6): 1133-1137.

LI She-Feng, FANG Meng-Xiang, TU Bin, ZHOU Wan-Tou, WANG Qi-Hui, SHI Zheng-Lun, JIA Zhong-Yang, CEN Ge-Fa. Experimental study on extraction of vanadium from Xinjiang stone coal pellets by roasting in fluidized bed combustor. J4, 2010, 44(6): 1133-1137.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2010.06.015        http://www.zjujournals.com/eng/CN/Y2010/V44/I6/1133

[1] 蔡晋强,巴陵.石煤提钒的几种新工艺[J].矿产保护与利用,1993(5): 3033.

CAI Jinqiang, BA Ling. Several new processes of extraction of vanadium from stone coal [J]. Conservation and Utilization of Mineral Resources, 1993(5): 3033.

[2] 宾智勇.钒矿石无盐焙烧提取五氧化二钒试验[J]. 钢铁钒钛, 2006, 27(3): 2126.

BIN Zhiyong. Study on extraction of V2O5 from vanadium ore by roasting and acid leaching process [J]. Iron Steel Vanadium Titanium, 2006, 27(3): 2126.

[3] 古映莹,庄树新,钟世安,等.硅质岩钒矿中提取钒的无污染焙烧工艺研究[J],稀有金属,2007,31(2): 102106.

GU Yingying, ZHUANG Shuxin, ZHONG Shian, et al. Nonpollution roasting technology to extracting vanadium from siliceous navajoite [J]. Chinese Journal of Rare Metals, 2007, 31(2): 102106.

[4] MOSKALYK R R, ALFANTAZI A M. Processing of vanadium: a review [J]. Minerals Engineering, 2003, 16(9): 793805.

[5] HE Dongsheng, FENG Qiming, ZHANG Guofan, et al. An environmentallyfriendly technology of vanadium extraction from stone coal [J]. Minerals Engineering, 2007, 20(12): 11841186.

[6] 岑可法,倪明江,骆仲泱,等.循环流化床锅炉的原理设计及运行[M].北京:中国电力出版社,1998.

[7] NAVARRO R, GUZMAN J, SAUCEDO I, et al. Vanadium recovery from oil fly ash by leaching, precipitation and solvent extraction processes [J]. Waste Management,2007, 27(3): 425438.

[8] 李静,李朝建,吴雪文,等.石煤提钒焙烧工艺及机理探讨[J].湖南有色金属,2007,23(6): 710.

LI Jing, LI Zhaojian, WU Xuewen, et al. Technology of roasting process on extraction of vanadium from stone coal and mechanism discussion [J]. Hunan Nonferrous Metals,2007, 23(6): 710

No related articles found!