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铜闪速吹炼炉冰铜喷嘴双分散风环结构的数值模拟
引用本文:任鹏,叶树枫,邢志楠,陈卓,祝振宇.铜闪速吹炼炉冰铜喷嘴双分散风环结构的数值模拟[J].有色金属(冶炼部分),2022(3):29-37.
作者姓名:任鹏  叶树枫  邢志楠  陈卓  祝振宇
作者单位:铜陵有色金冠铜业分公司,铜陵有色金冠铜业分公司,铜陵有色金冠铜业分公司,中南大学 能源科学与工程学院,中南大学 能源科学与工程学院
摘    要:为解决冰铜喷嘴单分散风环孔洞式设计对冰铜颗粒分散程度影响有限、且作用不均的问题,在维持现有分散风环外形尺寸不变的条件下,通过设置双层交错排布出风孔洞的形式增加分散风出风面积,同时弥补单风环孔洞作用不均的缺陷。此外,在不同的分散风环孔洞倾角结构条件下,开展了分散风总量为1 000 m3/h和1 500 m3/h的仿真寻优研究。研究表明,新型双分散风环结构能够在一定程度上提高冰铜颗粒在反应塔中的反应速率与反应程度,但增设竖直偏转角可能会引起炉内冰铜颗粒着火延迟的现象。因此,建议在仅保留孔洞的水平偏转结构条件下,将双环分散风的出口总流量提高至1 500 m3/h,以进一步改善冰铜颗粒在反应塔内的反应速率以及反应程度。

关 键 词:闪速吹炼炉  冰铜喷嘴  双分散风环  数值模拟
收稿时间:2021/10/13 0:00:00
修稿时间:2021/10/13 0:00:00

Numerical Simulation of Double Distributed Air Rings of Matte Jet Nozzle in Copper Flash Converting Furnace
REN Peng,YE Shu-feng,XING Zhi-nan,CHEN Zhuo and ZHU Zhen-yu.Numerical Simulation of Double Distributed Air Rings of Matte Jet Nozzle in Copper Flash Converting Furnace[J].Nonferrous Metals(Extractive Metallurgy),2022(3):29-37.
Authors:REN Peng  YE Shu-feng  XING Zhi-nan  CHEN Zhuo and ZHU Zhen-yu
Affiliation:Jinguan Copper,Tongling Nonferrous Metals Group Co Ltd,,,School of Energy Science and Engineering,Central South University,
Abstract:To address the problems of single distributed air ring with holes having limited influence on distribution of matte particles, a new design of double distributed air rings with staggered holes was proposed. Remain the original structure and size, and add another layer of distributed air ring which is in staggered display with the existing one. The above modification can not only increase outlet area, but also make up the uneven effect of distributed air on matte particles. Meanwhile, numerical simulation of different distributed air flow rate (i.e. 1 000 m3/h and 1 500 m3/h in total) and different structures were carried out to find the optimization structure and corresponding parameters. It is found that the double distributed air rings can improve reaction rate of matte particles, but adding the vertical downward angle would lead to ignition delay of matte particles. Therefore, it is recommended that, keeping double distributed air rings with only horizontal deflection angle and increasing distributed air flow rate to 1500 m3/h can improve the reaction rate of matte particles.
Keywords:flashing converting furnace  matte jet nozzle  double distributed air rings  numerical simulation
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