Taggart's formula for jaw and gyratory crusher capacity (kg/hr) for 10-60 cm gapes equals (where L = feed opening length in cm, S = maximum discharge opening width in cm)?
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Answer: B. 93 LS
Explanation
Taggart's empirical formula correlates crusher capacity with feed length and discharge width. The numerical factor 93 scales the dimensional parameters to yield capacity in kg per hour. Option B correctly represents the established Taggart capacity equation format. Empirical formulas in mining engineering help estimate equipment throughput capabilities. Jaw and gyratory crushers process massive tonnages of hard rock in primary circuits. Discharge opening settings regulate the maximum product size exiting the crushing chamber.
Plant designers use capacity equations to size primary crushers for specific mine outputs. Matching crusher capacity to downstream conveyors prevents operational bottlenecks. Empirical estimates provide a reliable starting point before detailed manufacturer sizing. Option A lacks the necessary empirical scaling factor to yield correct mass flow rates. Option C uses a factor of 250 which overestimates standard crusher capacity predictions. Option D applies a square root function that violates linear dimensional scaling principles.
- Subject
- Engineering
- Category
- Chemical Engineering
- Topic
- —
- Difficulty
- medium
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