Which conveyor type is generally NOT recommended for highly abrasive bulk materials due to rapid wear and maintenance concerns?
Chemical Engineering
Mechanical Operations
Difficulty: Easy
Choose an option
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ABelt conveyor
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BApron conveyor
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CFlight (drag) conveyor
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DChain conveyor
Answer
Correct Answer: Belt conveyor
Explanation
Introduction / Context:Abrasive materials (e.g., sharp ores, silica sand) erode contact surfaces. Conveyor selection must consider wear life and downtime.
Concept / Approach:Fabric belts and even many rubber compounds wear quickly under abrasion, especially at loading points and along idlers. Apron (metal pan) and heavy chain/flight conveyors are far more wear-resistant and are typical in quarries and sinter plants. While belts can be engineered with abrasion-resistant covers, for very abrasive duties they are still less robust and often uneconomic versus aprons or drag chains.
Final Answer:Belt conveyor