Belt Conveyor Top Metal Detector Long Fault

What constitutes a "long fault"? The metal detectors I have seen surround the conveyor rather than lie above. If metal is detected, the conveyor can be stopped, or a suitable portion of product can be diverted. You could then search for the metal with something like an airport security wand.

Dear Mr.Vivek,

What is the coneyor belt's carcass? is it fabric or steel-cord belt?

Thanks & regards,

Does some of your coal contain more FeO? Perhaps more FeO than the detection limit but less than your magnetic separator can separate.

How is the belt spliced? metal?

Ok now the belt has stopped, on inspection did you find metal pieces.

We had similar problem, even installed a paint spotter that sprays a dot of yellow paint on the spot where the trip mechanism was activated. In the long run we reduced the sensitivity of the metal detector and installed a magnetic conveyor head pulley. And found that small pieces of bin liners shovel teeth nuts and bolts that slipped past the metal detector got cort at the head pulley. Bigger pieces got well spotted by the metal detector and cleared accordingly. That little spotter worked like magic and was so easy to find the metal piece.

Hi,

Manytimes small nut bolts, pieces of scrap iron, steel wire ropes past through the metal detector/ magnetic seperator. These are detected at trip mechanism site. Hence a magnetic seperator is required near discharge pulley side of the conveyor which will check the small pieces. Anyway it is not mentioned whether any metal material is found at tripping location.

However as stated above magnetic seperator is necessory to protect onward system. All metal particles are to be removed at suitable time from main seperator as sometimes small pieces pass through if crowded. Cause of metal material coming from mine site is also to be detected.

A K Billore

So what you are saying (without telling us what metal types you are talking about) that the magnetic remover, is not removing all metal.

Is that because some parts are non ferrous?

Are there "removers" that can work on non Ferrous as well?

What is yours supposed to do?

The metal detector which will probably work for all metals, then detects the pieces and stops the band......

To my mind, you need to fault find the "remover".....Maybe is not set up correctly, has a fault, does not see certain sizes of material, there could be many problems.....

But although I am good with logical problems, I do not work on such equipments.....but apply logic first, then get the repair service there.....

At least nothing is getting through......

Is metal actually found, or has the metal detector itself a problem? You were not specific....