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学者姓名：晏全香
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Abstract ：
The application of rotating magnetic field can reduce the effect of agglomeration of fine-grained strong magnetic minerals in the sorting process. In this study, a three-dimensional finite element model of two spherical magnetic particles agglomerated in a rotating magnetic field is established, and a rotating magnetic field is constructed using a quadrupole magnet to verify the simulation results. The results show that the numerical simulation results can predict the experimental results more accurately, and the trajectories of the magnetic particles in the agglomeration process are centrosymmetric spiral curves. The utilization of the rotating magnetic field as well as increasing the rotating magnetic field speed, magnetic field strength, and the initial spacing of the magnetic particles will enhance the tendency of the magnetic particles to get rid of the agglomeration.
Keyword ：
Finite element method (FEM) Finite element method (FEM) Magnetic agglomeration Magnetic agglomeration Magnetic force Magnetic force Rotating magnetic field Rotating magnetic field
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| GB/T 7714 | Ku, Jiangang , Yan, Jujian , Xia, Jun et al. Manipulating three-dimensional magnetic particles motion in a rotating magnetic field [J]. | POWDER TECHNOLOGY , 2024 , 449 . |
| MLA | Ku, Jiangang et al. "Manipulating three-dimensional magnetic particles motion in a rotating magnetic field" . | POWDER TECHNOLOGY 449 (2024) . |
| APA | Ku, Jiangang , Yan, Jujian , Xia, Jun , Wang, Zhaolian , Yan, Quanxiang , Lei, Zhongyun et al. Manipulating three-dimensional magnetic particles motion in a rotating magnetic field . | POWDER TECHNOLOGY , 2024 , 449 . |
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Abstract ：
Magnetic agglomeration plays a vital role in enhancing the separation of fine magnetic mineral particles. However, the forces causing magnetic agglomeration in wet low-intensity magnetic separators (LIMS) are poorly understood; this calls for improved understanding of various forces (including magnetic force (Fm), magnetic agglomeration force (Fmm), gravity (G)) acting on magnetic particles in the LIMS. In this study, a 3D lowintensity magnetic field (LIMF) with uniform gradient was simulated, and the different forces acting on magnetic particles were calculated in the form of Fmm/Fm and Fmm/G by finite element analysis (FEA). Results show that magnetic agglomeration force has a significant competitive effect on magnetic separation. However, there are still some methods to weaken the effect of magnetic agglomeration force. This study not only provides theoretical guidance for the innovative development of LIMS, but also opens a new perspective for the recovery of strong magnetic minerals from ore resources.
Keyword ：
FEA FEA LIMS LIMS Magnetic agglomeration Magnetic agglomeration Magnetic force Magnetic force Magnetic particle Magnetic particle
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| GB/T 7714 | Xia, Jun , Lei, Zhongyun , Jiang, Kaixi et al. Comparison of various forces acting on magnetic particles in a low-intensity magnetic field: A 3D FEA [J]. | POWDER TECHNOLOGY , 2022 , 401 . |
| MLA | Xia, Jun et al. "Comparison of various forces acting on magnetic particles in a low-intensity magnetic field: A 3D FEA" . | POWDER TECHNOLOGY 401 (2022) . |
| APA | Xia, Jun , Lei, Zhongyun , Jiang, Kaixi , Wang, Qian , Ku, Jiangang , Yan, Quanxiang . Comparison of various forces acting on magnetic particles in a low-intensity magnetic field: A 3D FEA . | POWDER TECHNOLOGY , 2022 , 401 . |
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Abstract ：
随着新一轮教学改革开展以来，虚拟仿真技术已经成为教育辅助手段中不可缺少的重要组成部分。疫情以来，尤其是类似矿物加工工程这类工科属性的专业，难以现场实践，虚拟仿真技术运用于矿物加工教学将成为新的趋势与热点。本文探讨虚拟仿真技术相较于传统教学的优势，如能够建立安全高效且节约的教学环境、创新教学改革模式，切实提高教学质量等。并阐述了矿物加工虚拟仿真应用的不足之处，也提出了开展矿物加工虚拟仿真应用的若干建议，以期为基于虚拟仿真技术的矿物加工教学改革提供借鉴与参考。
Keyword ：
教学 教学 矿物加工 矿物加工 虚拟仿真 虚拟仿真
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| GB/T 7714 | 晏全香 , 饶峰 , 刘金艳 et al. 虚拟仿真技术在矿物加工专业教学中的应用 [J]. | 教育现代化 , 2022 , 9 (15) : 1-4. . |
| MLA | 晏全香 et al. "虚拟仿真技术在矿物加工专业教学中的应用" . | 教育现代化 9 . 15 (2022) : 1-4. . |
| APA | 晏全香 , 饶峰 , 刘金艳 , 邓荣东 . 虚拟仿真技术在矿物加工专业教学中的应用 . | 教育现代化 , 2022 , 9 (15) , 1-4. . |
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Magnetic interaction between magnetic particles is of great significance in the fields of magnetic separation and functional materials. A good understanding of interaction mechanism of magnetic particles would further boost its promising industrial applications. We hereby present our work which visualizes the movement behavior of magnetic spheres in magnetic fields employing high-speed imaging and simulates the dynamic behavior of spheres using an Arbitrary Lagrangian-Eulerian (ALE) based on finite element method. In this paper, we investigated the stress tensor, magnetic force, and dynamic behavior of magnetic spheres in magnetic fields, especially magnetic energy density in different domains. Results show that there are four relatively independent regions of magnetic energy density distribution in external spatial domains of a single sphere system. Attractive force will generate when the energy density in the spatial region between two spheres is relatively high, while a repulsive force will generate when the energy density in the spatial region between two spheres is relatively low. Every magnetic sphere spontaneously moves towards the region with high energy density and stays away from the region with low energy density. The total magnetic energy in magnetic spheres' domains (V1) and external spatial domains (V2) increases, but the magnetic energy in the external spatial domain decreases over time during the aggregation process. The magnetic spheres ultimately arrange in chain-like structures oriented along magnetic field direction. We hereby proposed a novel and efficient approach to predict the movement trends and final state of magnetic particle swarm from the view of energy density. (c) 2022 Published by Elsevier B.V. on behalf of China University of Mining & Technology. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
Keyword ：
3D FEA 3D FEA Interaction Interaction Magnetic force Magnetic force Magnetic spheres Magnetic spheres Stress tensor Stress tensor
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| GB/T 7714 | Ku, Jiangang , Lei, Zhongyun , Lin, Hua et al. Interaction of magnetic spheres in magnetic fields from the view of magnetic energy density: A 3D finite element analysis (FEA) [J]. | INTERNATIONAL JOURNAL OF MINING SCIENCE AND TECHNOLOGY , 2022 , 32 (6) : 1341-1350 . |
| MLA | Ku, Jiangang et al. "Interaction of magnetic spheres in magnetic fields from the view of magnetic energy density: A 3D finite element analysis (FEA)" . | INTERNATIONAL JOURNAL OF MINING SCIENCE AND TECHNOLOGY 32 . 6 (2022) : 1341-1350 . |
| APA | Ku, Jiangang , Lei, Zhongyun , Lin, Hua , Yan, Quanxiang , Chen, Huihuang , Guo, Bao . Interaction of magnetic spheres in magnetic fields from the view of magnetic energy density: A 3D finite element analysis (FEA) . | INTERNATIONAL JOURNAL OF MINING SCIENCE AND TECHNOLOGY , 2022 , 32 (6) , 1341-1350 . |
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以提纯后的钠基膨润土为原料,采用四氧化三铁磁体合成磁性膨润土,通过改变合成过程中的pH值、温度、搅拌聚合时间以及改性剂用量,根据改性磁性膨润土吸附铜离子的效果,判断实验条件对改性磁性膨润土的影响.确定最佳的改性条件为合成时pH值12,合成过程温度40℃,搅拌聚合时间2.5 h,吸附时间60 min,改性剂(nFe:nSi=3:1)用量30％(质量分数),产品最佳循环利用次数4次.通过扫描电镜、透射电镜、XRD和电子探针等对产品进行表征分析,结果表明改性膨润土具有较好的吸附能力,利用四氧化三铁复合可以制备出性能优良的磁改性膨润土.
Keyword ：
制备 制备 吸附 吸附 四氧化三铁 四氧化三铁 膨润土 膨润土
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| GB/T 7714 | 晏全香 , 房博 , 蓝灿文 et al. 改性膨润土矿物材料制备试验 [J]. | 福州大学学报（自然科学版） , 2020 , 48 (2) : 257-262 . |
| MLA | 晏全香 et al. "改性膨润土矿物材料制备试验" . | 福州大学学报（自然科学版） 48 . 2 (2020) : 257-262 . |
| APA | 晏全香 , 房博 , 蓝灿文 , 林晓辉 . 改性膨润土矿物材料制备试验 . | 福州大学学报（自然科学版） , 2020 , 48 (2) , 257-262 . |
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本文讨论顶岗实习模式的几种主要特点,提出工科专业顶岗实习在实施过程中的难点、热点问题,探索该模式有效运行的解决方案,提出了建立保障制度、进行课程改革、加强顶岗实习管理、加强双师队伍建设、完善配套管理制度等改革方案。
Keyword ：
工科 工科 生产实习 生产实习 矿物加工 矿物加工 顶岗实习 顶岗实习
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| GB/T 7714 | 晏全香 , 谢春松 . 工科专业顶岗实习问题分析——以矿物加工专业为例 [J]. | 教育现代化 , 2019 , 6 (42) : 156-159 . |
| MLA | 晏全香 et al. "工科专业顶岗实习问题分析——以矿物加工专业为例" . | 教育现代化 6 . 42 (2019) : 156-159 . |
| APA | 晏全香 , 谢春松 . 工科专业顶岗实习问题分析——以矿物加工专业为例 . | 教育现代化 , 2019 , 6 (42) , 156-159 . |
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工科专业的生产实习是培养学生实践能力的重要环节。本文响应教育教改要求,讨论生产实习模式的几种主要特点,提出工科专业生产实习改革的难点,并对比顶岗实习模式,探索该模式在实施过程中的难点、热点问题,提出了建立保障制度、进行课程改革、加强顶岗实习管理、加强双师队伍建设、完善配套管理制度等改革方案。
Keyword ：
工科 工科 生产实习 生产实习 顶岗实习 顶岗实习
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| GB/T 7714 | 晏全香 , 邓荣东 , 库建刚 . 工科专业生产实习模式探讨 [J]. | 科教导刊(上旬刊) , 2019 , (01) : 35-36,38 . |
| MLA | 晏全香 et al. "工科专业生产实习模式探讨" . | 科教导刊(上旬刊) 01 (2019) : 35-36,38 . |
| APA | 晏全香 , 邓荣东 , 库建刚 . 工科专业生产实习模式探讨 . | 科教导刊(上旬刊) , 2019 , (01) , 35-36,38 . |
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Abstract ：
工科专业的生产实习是培养学生实践能力的重要环节.本文响应教育教改要求,讨论生产实习模式的几种主要特点,提出工科专业生产实习改革的难点,并对比顶岗实习模式,探索该模式在实施过程中的难点、热点问题,提出了建立保障制度、进行课程改革、加强顶岗实习管理、加强双师队伍建设、完善配套管理制度等改革方案.
Keyword ：
工科 工科 生产实习 生产实习 顶岗实习 顶岗实习
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| GB/T 7714 | 晏全香 , 邓荣东 , 库建刚 . 工科专业生产实习模式探讨 [J]. | 科教导刊 , 2019 , (1) : 35-36,38 . |
| MLA | 晏全香 et al. "工科专业生产实习模式探讨" . | 科教导刊 1 (2019) : 35-36,38 . |
| APA | 晏全香 , 邓荣东 , 库建刚 . 工科专业生产实习模式探讨 . | 科教导刊 , 2019 , (1) , 35-36,38 . |
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根据目前工科专业普遍存在的实习实践环节复杂现状,课题组对矿物加工工程专业学生生产实习经验模式进行了分析,发现诸如学校和生产企业对实习的关注程度不同,缺乏沟通和管理,学生配合度不高,双师指导和讲解难度大,实践安排岗位操作难以实现,实习经费紧张等实际问题突出.课题组针对实习具体问题进行具体分析,探讨开展有效实习实践的方法和途径,提出矿物加工实习改革和创新举措,主要是政府、企业与学校联合建立保障制度,全面优化实践模式,改善实习装备,完善实习考核制度,专题座谈及时总结,等等.课题组还对矿物加工工程专业生产实习新模式进行了分析探索,提出企业和学校共营的独立选厂实习模式和学生化整为零进入企业进行"学徒"制实习模式,两种模式各有特点,按照企业情况和学生特点进行选择,充分利用学校和企业资源,加强实习过程中学生实践能力的锻炼,保障矿物加工工程专业学生的培养质量,以适应时代发展对工程人才的需求.
Keyword ：
工科 工科 生产实习 生产实习 矿物加工 矿物加工
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| GB/T 7714 | 晏全香 , 库建刚 , 邓荣东 . 矿物加工工程专业生产实习问题探讨 [J]. | 大学教育 , 2019 , (5) : 72-74 . |
| MLA | 晏全香 et al. "矿物加工工程专业生产实习问题探讨" . | 大学教育 5 (2019) : 72-74 . |
| APA | 晏全香 , 库建刚 , 邓荣东 . 矿物加工工程专业生产实习问题探讨 . | 大学教育 , 2019 , (5) , 72-74 . |
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以铁尾矿和铜矿渣为原料,成功制备了尾矿渣复合胶凝材料.通过分析球磨时间、胶砂比、料浆浓度、矿渣用量、碱激发剂、水泥熟料、养护条件与胶凝材料力学性能的关系,探讨矿渣胶凝体系制备过程影响因素,确定矿渣胶凝材料制备工艺条件.当矿渣胶凝体系配比为铜矿渣∶石灰∶石膏=80％∶4％∶16％、矿渣胶凝体系球磨时间25 min,充填体中矿渣胶凝体系∶水泥熟料∶氢氧化钠∶铁尾矿=20％∶5％∶0.5％∶74.5％、料浆浓度为75％时为充填材料的最好配比,在此条件下,5％水泥填料,试块28d抗压强度为3.62 MPa.试验中尾矿渣复合胶凝材料制备研究满足矿山充填胶凝材料的需求.
Keyword ：
制备工艺 制备工艺 综合利用 综合利用 胶凝材料 胶凝材料 铁尾矿 铁尾矿 铜矿渣 铜矿渣
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| GB/T 7714 | 晏全香 , 库建刚 , 蒋丰明 . 尾矿渣复合胶凝材料制备试验研究 [J]. | 矿冶 , 2019 , 28 (4) : 98-102,125 . |
| MLA | 晏全香 et al. "尾矿渣复合胶凝材料制备试验研究" . | 矿冶 28 . 4 (2019) : 98-102,125 . |
| APA | 晏全香 , 库建刚 , 蒋丰明 . 尾矿渣复合胶凝材料制备试验研究 . | 矿冶 , 2019 , 28 (4) , 98-102,125 . |
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