A method for analyzing and detecting the characteristics of magnetically captured magnetic particles in magnetic media
A magnetic particle and magnetic medium technology, applied in special data processing applications, instruments, design optimization/simulation, etc., can solve problems such as magnetic medium capture feature distortion, and achieve the effect of improving sorting efficiency
Active Publication Date: 2018-11-27
KUNMING UNIV OF SCI & TECH
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Problems solved by technology
[0004] In order to solve the problem of "distortion" of magnetic medium capture characteristics applied by the unit medium analysis method, the present invention provides a method for analyzing and detecting the characteristics of magnetic particles captured by magnetic force in magnetic medium
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Embodiment 1
[0020] Ilmenite is used as the material, and the particle size of ilmenite is relatively fine. After 300g sample is taken and ground for 1 min, the particle size distribution of the material is shown in Table 1.
[0021] Table 1
[0022]
[0023] The method for analyzing and detecting the characteristics of the magnetic particles captured by the magnetic force of the magnetic medium, the specific steps are as follows:
[0024] (1) Any detachable magnetic medium can be obtained by preparing several unit media modules composed of dielectric wires. Select 2mm and 3mm single-diameter rod dielectric wires to form 10-layer unit media modules to prepare two kinds of detachable magnetic media, 2mm and 3mm. Detachable magnetic media arrangement and combination such as figure 2 As shown, the wire spacing L1 and layer spacing L2 of the 2mm diameter rod dielectric wire detachable magnetic medium are equal, that is, L1=L2=2mm; the 3mm diameter rod dielectric wire detachable magnetic m...
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The invention relates to a method for analyzing and detecting magnetic particle capture characteristics of magnetic medium magnetic force, and belongs to the technical field of high-gradient magnetic separation. A magnetic medium detachable at will is prepared by multiple unit medium modules composed of medium wires; the magnetic medium detachable at will is put into a separation cavity of a high-gradient magnetic separation machine to complete the high-gradient magnetic separation process; after the magnetic separation process is completed, feeding is stopped, a magnetic field and a flow field are kept, the liquid level is reduced so that the magnetic medium in a separation region will be slowly exposed out of fluid, cold air is introduced into the magnetic medium so that the magnetic particles accumulated and exposed on the surfaces of the medium wires are fast cooled and fixed, after the magnetic medium is completely exposed and fully cooled, the magnetic field is removed, the magnetic medium is taken out, the unit medium modules are disassembled in a low-temperature environment to obtain the medium wires, and the medium wires are placed in cold insulation equipment; obtained medium monofilaments are analyzed and detected to obtain the real characteristics of magnetic medium magnetic force capture. The problem that characteristics captured by a magnetic medium applied in a unit medium analysis method are distorted is solved.
Description
technical field [0001] The invention relates to a method for analyzing and detecting the characteristics of magnetic particles captured by magnetic force of a magnetic medium, and belongs to the technical field of high gradient magnetic separation. Background technique [0002] High-gradient magnetic separation is currently the key technology for sorting (micro) fine-grained weakly magnetic metal ores (iron oxide ore, ilmenite, wolframite, etc.) and non-metallic ores (quartz, feldspar, kaolin, etc.), and is widely used . As the carrier of the high gradient magnetic separation process, the magnetic medium's structure determines the magnetic field distribution and magnetic capture dynamics inside the magnetic medium, which significantly affects the performance of high gradient magnetic separation. So far, the theoretical analysis, design and development of magnetic media have basically adopted the traditional "single-filament magnetic capture" theory, that is, under the most ...
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IPC IPC(8): G06F17/50
CPCG06F30/20
Inventor 陈禄政刘文博郑永明肖庆飞邵延海游志程
Owner KUNMING UNIV OF SCI & TECH