Latest developments in mineral processing equipment

Compared with a large number of studies on mineral processing technology, the design and research and development of mineral processing equipment was slightly insufficient in 2009, but some progress was made in magnetic separation and grinding classification equipment .

Guangzhou Research Institute of Nonferrous metals for Meishan concentrator production practice, the development of high gradient magnetic separator magnetic system of levels, and the corresponding industrial production test. The results show that under the same conditions, the selection index of the equipment is consistent with the vertical magnetic system pulsation high gradient magnetic separator on the production site, and the long-term operation of the selection index is not changed greatly; because the equipment design is more reasonable, the unloading method is more Advanced, in the case of not changing the media box, there is basically no blockage after running for 3 months.

Zhaorui Min et RGC developed a strong permanent magnet magnetic separator roll sorter, laboratory tests and industrial application effect andalusite ore, quartz sand, corundum abrasives and manganese ore indicated that this strong magnetic separation device can obtain good Sorting technical indicators.

Zhang Guowang et al. successfully designed and developed a large vertical spiral mixer grinding machine by using the numerical simulation technology of computer flow field and traditional mechanical analysis. The application effect in the re-grinding process of molybdenum ore shows that the grinding machine provides a good sorting environment for the flotation operation by improving the grinding fineness and cleaning the surface of the molybdenum mineral particles, and significantly improves the molybdenum concentrate. Grade and molybdenum recovery.

Lu Zhiming introduced the technical characteristics of a new type of electromagnetic vibration high-frequency mineral powder sieve and its application effect in metal ore grading operation. By comparing with other splicing equipment, the unique excitation mode and structure of this high-frequency screen are pointed out. The stability and the adaptability to the graded particle size and the accuracy of the particle size control make it show certain advantages in the classification of fine particles and the enlargement of the equipment.

Qing Li et pair phosphorus low grade ore flotation column by half FCSMC pilot study on, Cylindrical investigate the flotation equipment, the influence of the main operating parameters of the sorting index. As a result, Shengming, the appropriate slurry concentration can be used to improve the concentrate grade and recovery rate, and reduce the consumption of flotation reagents; under the conditions of proper circulation pump pressure and inflation rate, better sorting technical indicators can be obtained.

For filtration problems concentrator Longqiao iron ore flotation tailings, and other changes Yang Changlong ceramic filter adjustment ceramic plate aperture, the agitation, filtration and concentration operations of Industrial test, obtained a more satisfactory filtering effect , can make the filter cake moisture more than 15%, the processing capacity can reach 300Kg / (m 2 · h)

Qian Aijun applied computational fluid dynamics technology to analyze the flow field of heavy medium cyclone used for phosphate ore sorting. The results show that the application results are consistent with the numerical results. The results of this study provide a reference for the development of heavy medium cyclones using computational fluid dynamics simulation.

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