| 摘要 |
A method of locating a defective separation screen in a multi-screen system includes providing a plurality of subsets of identifier objects, such as mesh cleaning balls. Each subset has a different identifying characteristic, such as color, from the other subsets and is maintained in at least intermittent contact with each of the screens. When a screen becomes defective, at least one of the subset of the identifier objects associated with the screen is recovered at a location remote from the screen. The location of the defective screen can then be determined based on the identifying characteristic of the recovered identifier object.
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