研究高磁导率磁铁对降低高梯度磁选机能耗的影响

IF 4.9 2区 工程技术 Q1 ENGINEERING, CHEMICAL
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引用次数: 0

摘要

弱磁性铁矿石的绿色加工离不开高强高梯度磁选机(HGMS),它是能耗最大的磁选设备之一。铁(Fe)铠装是提高磁系内部磁场传导效率的关键初级结构。常用磁轭材料的磁性能依次为:普通碳素结构钢;Q235 钢;DT4 电工纯铁。但 DT4 电工纯铁的使用成本最高,特别是 DT4C 超级电工纯铁的磁性能不稳定,成品率低。本文在普通纯铁材料的基础上,通过控制有害元素含量,提高有益元素浓度,研制出新型 411 纯铁(411),并利用磁场模拟软件分析了 411 对 HGMS 背景磁场强度的影响。结果表明,新开发的 411 纯铁的矫顽力为 24.07 A/m,饱和磁化强度为 1.69 T,最大相对磁导率为 24.38 × 10-3H/m,与 Q235 和 DT4C 相比,磁性能更优越。使用 411 纯铁作为磁轭材料时,在相同的激磁电流条件下,HGMS 的本底磁场强度比使用 DT4C 超纯铁提高了 6.85 % - 14.64 %。磁导率更高的磁轭将提高磁系统的磁场利用效率,降低励磁能耗,改善 HGMS 的分拣性能。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Study on the influence of high permeability magnetic iron on energy consumption reduction in high gradient magnetic separator
The green processing of weakly magnetic iron ore is inseparable from high-intensity and high-gradient magnetic separator (HGMS), which is one of the most energy-intensive magnetic separation equipment. Iron (Fe) armor serves as the key primary structure for enhancing magnetic field conduction efficiency within the magnetic system. The order of magnetic properties of commonly used magnetic yoke materials is: ordinary carbon structural steel < Q235 steel < DT4 electrical pure iron. But the utilization cost of DT4 electrical pure iron is the highest, especially the magnetic properties of DT4C super electrical pure iron are unstable and the yield is low. On the basis of ordinary pure iron materials, this article has developed a new type of 411 pure iron (411) upon controlling the levels of harmful elements, while increasing the concentration of beneficial elements.intensity Furthermore, through the utilization of magnetic field simulation software, the impact of 411 on the background magnetic field intensity of HGMS was analyzed. The results indicated that the newly developed 411 pure Fe exhibited a coercivity of 24.07 A/m, a saturation magnetization intensity of ∼ 1.69 T, a maximum relative magnetic permeability of 24.38 × 10-3H/m, demonstrating superior magnetic properties in comparison with Q235 and DT4C. When using 411 pure iron as the magnetic yoke material, the background magnetic field intensity of the HGMS can be increased by 6.85 % − 14.64 % compared with using DT4C super pure iron under the same excitation current conditions. The magnetic yoke with better magnetic conductivity will enhance the magnetic field utilization efficiency of the magnetic system, a reduce the excitation energy consumption, and improve the sorting performance of HGMS.
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来源期刊
Minerals Engineering
Minerals Engineering 工程技术-工程:化工
CiteScore
8.70
自引率
18.80%
发文量
519
审稿时长
81 days
期刊介绍: The purpose of the journal is to provide for the rapid publication of topical papers featuring the latest developments in the allied fields of mineral processing and extractive metallurgy. Its wide ranging coverage of research and practical (operating) topics includes physical separation methods, such as comminution, flotation concentration and dewatering, chemical methods such as bio-, hydro-, and electro-metallurgy, analytical techniques, process control, simulation and instrumentation, and mineralogical aspects of processing. Environmental issues, particularly those pertaining to sustainable development, will also be strongly covered.
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