Difficulty: Medium
Correct Answer: Leaf filter
Explanation:
Introduction / Context:
Specialised filter names (e.g., Oliver, Moore, Kelly) often indicate the mechanical layout or vendor lineage. Recognising the generic class behind a trade or legacy name helps engineers interpret legacy documentation and specify equivalent equipment during revamps or replacements.
Given Data / Assumptions:
Concept / Approach:
In conventional classifications, the Moore filter is referenced as a leaf-type filter: an assembly of perforated leaves covered with filter medium, connected to a common manifold, typically operated under vacuum for batch or semi-continuous cake formation and discharge. While rotary drum/disc filters are also vacuum devices, the Moore designation historically correlates with leaf configurations rather than a rotating drum or disc format, and not with plate-and-frame presses or granular sand filters.
Step-by-Step Solution:
Verification / Alternative check:
Older equipment catalogs and unit operations texts list Moore under leaf/vacuum leaf filters, distinct from Oliver rotary drums and standard presses.
Why Other Options Are Wrong:
Common Pitfalls:
Assuming any vacuum filter is rotary; many are stationary leaf assemblies.
Final Answer:
Leaf filter
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