(1) In terms of the particle size of the treated material, the most suitable sorting particle size for electro-election is 2 to 0.1 mm. When a sheet obtained by the processing of plastic and light metal, the maximum particle size of up to 10mm. Drum-type electric separators that have been shaped at home and abroad and have large drum diameters are mature and reliable equipment. The domestic DXJ-ф320×900mm and YD-4 types can basically meet the needs. For a few special non-metallic minerals, the coarse particle size and the positive and negative charge due to friction, the free fall type electric separator should be used. It is not currently produced, and there are not many such minerals. When the demand for zircon and other minerals is high, both drum type and Australian plate or sieve type electric separator can be used.
DXJ-ф320×900mm and ф320×1200mm are equipped with corresponding electrode structures for sorting fine particles, which can reduce the sorting particle size to about 20μm, but it must also be stated that the processing amount is smaller than that of coarse materials. For materials with low density, Not only will the throughput be reduced, but the effect will be worse.
(2) In terms of processing capacity, the ф120×1500mm double-roller electric separator and DXJ-ф320×900mm two sorting machines have a processing capacity of about 0.5t, and YD-3 is 0.5-2.5t/set·h. , YD-4 type is 2 ~ 4t / Taiwan · h. The processing material has small particle size, low density, and the lower limit of processing capacity at the time of the station. The first two types are only suitable for small and medium-sized mines for selective use, and the latter two can be adapted to relatively large factories and mines. The processing capacity depends on the length of the drum. And the size of the rotation speed, the size of the ore and the density of the ore, that is, the longer the length of the drum, the higher the rotation speed, the larger the grain size of the ore, the higher the density, the higher the processing capacity, and vice versa. In addition, there is an important factor, that is, the conductivity of the mineral also affects the productivity, and the conductivity of the separated conductor mineral is required to be improved, and the processing ability can be appropriately increased, and vice versa.
(3) In terms of product quality requirements, the selection of electrical selection equipment has a lot to do with the quality requirements of the sorting products. Some factories and mines of the non-conductive product quality demanding, asking for conductor products and less stringent; as scheelite cassiterite sorting, selection, selection of zircon and monazite, belong to this Type; the other, in turn, the requirements for conductor minerals are very strict, but the requirements for non-conductors are not very strict, but also the factors to be considered when selecting, such as the separation of rutile, the fine of antimony ore. The selection of graphite and the like, which require a high grade of concentrate, so when the latter case is encountered, it is more appropriate to choose a multi-drum type, and the former can choose either a multi-drum type or a plate type. And sieve plate type electric selection equipment. The drum type is related to the problem of the electrode structure, and the electrode structure used is different, and the effect is also different. This is a problem that must be considered in the selection.
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