Inter stage screening - Hydrometallurgy: Leaching in Heap, Vat, CIL, CIP, Merrill–Crowe, SX Solvent Extraction - Metallurgist & Mineral Processing Engineer

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Inter stage screening (2 replies and 3 comments)

7 years ago

Hello, apart from arranging regular screen maintenance, how can I check for interstage screen leakage manually during the shift?

ManUtd67

7 years ago

ManUtd67 7 years ago

2 likes by David and Colette

I am assuming the intertank screens are of the rotating basket type (swept in tank rotating screens). Sample the discharge on a shift basis and manually screen at say 0.5mm. If you observe carbon on the screen then you have a leak.

Irene Ibz

7 years ago

Thanks so you mean the oversize or undersize?

mashudu

7 years ago

no carbon is suppose to be visible when you do the check on the discharge sample, if any carbon is visible it will mean : 1. if its finer than the screen appeture it will mean you are creating fines in your system,2.if its coarser than the screen appeture then it will mean you have leaks.

GeoffC

7 years ago

GeoffC 7 years ago

A quick check can be carried up by placing something as simple as a kitchen type wire sieve fixed to a pole into the discharge stream to see if carbon granules are escaping. Construction of similar implements with a proper screen mesh can usually be quickly made on a mine site to do the same job.

Irene Ibz

7 years ago

Thanks for the good idea

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