The beneficiation process of the drum type high-voltage electric separator is shown in Figure 1. In addition, the United States and the Soviet Union have also carried out research on the process of iron ore selection and direct electrification, which proves that this method can greatly reduce the content of SiO 2 and phosphorus (P) and obtain high quality iron concentrate. Similar tests have been carried out in China to improve the grade of iron concentrate and reduce the SiO 2 content.
Figure 1 Sweden's Malmberget electoral selection iron ore flow chart
Selective Laser Sintering - Sls
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It mainly uses photosensitive resin as a raw material, and utilizes the characteristic that liquid photosensitive resin will cure quickly under ultraviolet laser beam irradiation. The photosensitive resin is generally liquid, and it immediately initiates a polymerization reaction and completes curing when irradiated with a certain wavelength of ultraviolet light (250 nm to 400 nm). SLA focuses on the surface of the light-curing material by focusing ultraviolet light of a specific wavelength and intensity to solidify it sequentially from point to line and from line to surface, thereby completing the drawing of a layered cross-section.
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