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      Filter and filter press selection in ore dressing process

      Filter is to use the pressure difference and make the solid particles and liquid through porous media (filter cloth, filter plate, etc.) for separation of machinery. Can be divided into: drum type vacuum filter (filter type, filter type, folding belt type and permanent magnet filter type), disc vacuum filter, horizontal belt vacuum filter and filter press.

      The general selection principle:

      (1) drum type vacuum filter. Of which type is suitable for the filtration with larger granularity coarser, density and settling velocity faster material, mainly used for filtering magnetic separation and flotation of iron concentrate. Outside the filter type and fold belt conveyor is mainly used for filtering of fine granularity, low requirements products contain moisture non-ferrous metals and non-metallic ore concentrate; When filtering fine sticky materials, but outside the cylinder dehydration devices, such as tap or press roller to reduce filtration and water. Permanent magnet filter machine is especially suitable for the coarse grain of magnetite concentrate.

      (2) disc vacuum filter. Is suitable for the filtration of fine grained concentrate containing slime, already widely used in iron ore concentrate filtration abroad, domestic now from the reach of cleaned coal is mainly used for flotation and non-ferrous metals concentrate iron concentrate filtering.

      (3) the horizontal belt type vacuum filter. Particularly applicable to filter the coarse grain and dense mineral, can also be used to filter materials such as coal.

      (4) belt type rate machine. Suitable for filtering difficult fine grained materials, is widely used in filtering all kinds of sludge, coal products, hydrometallurgy of residue, pipe material, etc.

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