Milling & Recycling Q&A: RAP / Parallel Flow Drum
2
votes
What percent of RAP can be introduced in a parallel flow design drum effectively?
Brian Dillmorn
32 reputation points
3 Answers
2
votes
accepted
Introduced is one thing. Introduced with success is another topic altogether. I would bank on 10-15%.
Dennis Sunderland
45 reputation points
3
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2
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what i see is a greater amount of blue smoke from parellel flow drums when the rap percentage is increased and the mix temps are increased, I have had several customers running 20-25 % with out to much trouble, a major factor or problem is if the rap stops flowing during production, the temp spike has even caused a baghouse fire, ( plant safety system was ..BYPASSED) . I know of several PF designs running more than 15% , mostly southern states
lnewton@reliableasphalt
298 reputation points
