In the production operation, because the performance of PTMS magnetic separator is constant, the content of magnetic substances in the feed is generally not adjustable, so it reflects the field operation level, and because the grade in the concentrate meets the requirements, it has little impact on the performance efficiency. In the actual production, the two values of the unit volume of the tailings and the magnetic content in the tailings can be checked to quickly determine the effect of the magnetic separation process.
The performance efficiency is used as the evaluation index of PTMS magnetic separator process effect, and the unit volume of band in the tail of the magnetic separator is used to reflect the working state of the magnetic separator. Generally, the magnetic content of concentrate is greater than 90%, the performance efficiency is greater than 99%, or the volume of tailings is less than 0.30g/L.
When the magnetic content of concentrate is less than 85%, the heavy suspension system is difficult to maintain stability. At this time, the magnetic separation process can be directly assessed as unqualified without calculating the performance efficiency. In this way, the evaluation deviation that may be caused by the low magnetic content of concentrate but the high performance efficiency is avoided. Adopt comprehensive assessment.
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