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Discussion

Match each remedy in List I with the problem it addresses in List II.

List I

A. Sulphur trioxide conditioning

B. Raising the cleaning set point

C. Adding a cyclone upstream

D. Selecting a higher temperature fabric

List II

1. Excessive coarse dust loading on a baghouse

2. High dust resistivity causing back corona

3. Bag failure from heat

4. Over-cleaning that strips the dust cake

Select the correct match.

  • A.A-2, B-4, C-1, D-3
  • B.A-1, B-2, C-4, D-3
  • C.A-2, B-1, C-4, D-3
  • D.A-3, B-1, C-4, D-2

Answer: A

Each fault has a specific and well established remedy, and applying the wrong one wastes money without improving anything. Diagnosing which problem is present is the whole of the work in most cases of poor performance.

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