###
有色金属(选矿部分):2024,(4):105-112
←前一篇   |   后一篇→
本文二维码信息
码上扫一扫!
旋振超重力流场对铜矿分选特性的影响研究
肖蒙卓1, 柳忠彬1, 王彪2, 王亚琳1, 龚佳1, 何萍萍1
(1.四川轻化工大学 机械工程学院;2.绵阳流能粉体设备有限公司)
Study on the influence of rotary vibration super gravity flow field on the separation characteristics of copper mine
xiaomengzhuo1, liuzhongbin1, 王彪2, wangyalin1, gongjia1, hepingping1
(1.Sichuan University of Science & Engineering;2.LNPE Powder Equipment Co., ltd)
摘要
图/表
参考文献
相似文献
本文已被:浏览 60次   下载 57
投稿时间:2023-09-09    修订日期:2023-09-15
中文摘要: 我国铜矿资源具有矿床规模小、共伴生矿多、品位低、矿床物质组成复杂等特点,在当今新能源产业的发展推动下,铜资源消耗保持增长,由于缺乏分选低品位微细粒铜矿的设备,大量微细粒铜矿损失,造成铜资源紧缺。为提高铜矿中铜金属的回收率及品位,降低使用药剂对环境造成的污染,提出一种旋振和离心力耦合作用的分离方法,建立Fluent铜矿颗粒的旋振超重力流场分离模型,研究铜矿不同组分颗粒在旋振分选器中的分离行为、速度分布及颗粒浓度变化规律。研究表明:铜矿不同组分颗粒在分选器圆柱段均匀分布,在圆锥段出现分层、分离现象;SiO2颗粒和Cu颗粒在最外围都有一个径向速度为零的圆环,SiO2颗粒在中心区域径向速度最大,Cu颗粒在中心区域径向速度最小,越靠近壁面径向速度越大;SiO2颗粒所受离心力较小,在旋振分力和上升流的综合作用下呈螺旋向上运动至溢流口排出,Cu颗粒所受离心力较大能够克服旋振分力,Cu颗粒在圆锥段壁面富集并沿底流口排出,回收率和富集比分别达到86%和14。与传统超重力旋流器分选相比,旋振作用能使床层松散,有效解决分选过程中铜矿颗粒群易于板结的问题,有助于促进铜矿不同组分颗粒按密度差异分层,能够显著提高铜矿颗粒的分离效率。
中文关键词: 铜矿  旋振  超重力分离  数值模拟
Abstract:China "s copper resources have the characteristics of small deposit scale, many associated ores, low grade and complex material composition of deposits. Driven by the development of today "s new energy industry, the consumption of copper resources continues to grow. Due to the lack of equipment for sorting low-grade fine-grained copper ores, a large number of fine-grained copper ores are lost, resulting in a shortage of copper resources. In order to improve the recovery rate and grade of copper metal in copper mine and reduce the environmental pollution caused by the use of reagents, a separation method based on the coupling effect of rotary vibration and centrifugal force was proposed. The separation model of rotary vibration high gravity flow field of copper ore particles in Fluent was established to study the separation behavior, velocity distribution and particle concentration variation of different components of copper ore particles in rotary vibration separator. The results show that the particles of different components of copper ore are evenly distributed in the cylindrical section of the separator, and stratification and separation occur in the conical section. SiO2 particles and Cu particles have a ring with zero radial velocity at the periphery. The radial velocity of SiO2 particles is the largest in the central region, and the radial velocity of Cu particles is the smallest in the central region. The closer to the wall, the greater the radial velocity. The centrifugal force of SiO2 particles is small, and the particles move upward spirally to the overflow port under the combined action of the rotary vibration component force and the upwelling. The centrifugal force on the Cu particles is large enough to overcome the rotational vibration component force. Most of the Cu particles are enriched on the wall of the conical section and discharged along the underflow outlet. The recovery rate and enrichment ratio are 86 % and 14, respectively. Compared with the traditional high-gravity cyclone separation, the rotary vibration can make the bed loose, effectively solve the problem that the copper ore particles are easy to agglomerate during the separation process, and help to promote the stratification of different components of the copper ore according to the density difference, which can significantly improve the separation efficiency of the copper ore particles.
文章编号:     中图分类号:    文献标志码:
基金项目:四川省科技厅重点研发项目(2021YFG264);四川省凉山州科技项目(22ZDTF0164);过程装备与控制工程四川省高校重点实验室项目GK202109
引用文本:
肖蒙卓,柳忠彬,王彪,王亚琳,龚佳,何萍萍.旋振超重力流场对铜矿分选特性的影响研究[J].有色金属(选矿部分),2024(4):105-112.
xiaomengzhuo,liuzhongbin,王彪,wangyalin,gongjia,hepingping.Study on the influence of rotary vibration super gravity flow field on the separation characteristics of copper mine[J].Nonferrous Metals(Mineral Processing Section),2024(4):105-112.

我们一直在努力打
造,精品期刊,传
播学术成果

全国咨询服务热线

杂志信息

期刊简介

相关下载

联系我们

电话:10-63299852/63299758

传真:10-63299754

QQ:XXXXXXX

Email:YSXK@BGRIMM.COM

邮编:100160

地址:北京市南四环西路188号总部基地18区23号楼

关注微信公众号