However, it must be noted during operation: in order to reduce the tailings grade (ie overflow grade), simply increase the discharge opening, which will reduce the grade of the discharge, and even make the dewatering tank form a large funnel, which will not function properly. However, it does not make the rising water flow too large. The assembly will cause the magnetic ore particles to be carried to the overflow tank to run away, causing losses.
The principle of operating the dewatering tank should be: in the case of meeting the requirements of the overflow grade (ie ensuring the tailings grade), the water supply volume is moderate or slightly larger, so that the non-magnetic materials in the pulp run out the most, and the concentrate grade is increased as much as possible.
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