Slope of counter-current flow rotary drier is in the range of ____________ meter/metre?
Correct answer: A. 0 to 0.08
- A. 0 to 0.08
- B. 0 to 0.8
- C. 0 to 1.5
- D. 0 to 2.2
Explanation
Counter-current rotary dryers are given only a slight slope, typically about 0 to 0.08 m per metre of dryer length, so solids move gradually while contacting the gas. The larger ranges would represent an excessively steep dryer.
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