Reverse flow post-mixer attachment and method for direct...

Details Reverse flow post-mixer attachment and method for direct... Reverse flow post-mixer attachment and method for direct...

B - Operations, Transporting

28

C

259/23

B28C 5/20 (2006.01) B01F 13/10 (2006.01) B28C 5/46 (2006.01) B28C 7/12 (2006.01) B28C 7/16 (2006.01) E01C 19/10 (2006.01)

Patent

CA 1289941

ABSTRACT A reverse flow post-mixer attachment for direct-fixed asphaltic concrete mixers includes a modified discharge box for the downstream end of the drum and an enclosure for the down- stream portion of the drum forming a passage along the exterior of the drum. If the smoke point of the liquid asphalt to be added to the material in the drum meets an established standard it is injected into the material upstream of the downstream end of the drum and discharged from the latter end in the normal manner. If the smoke point of the asphalt does not meet the standard, the material exiting the drum is diverted into the passage along the exterior of the drum and the asphalt added there out of the burner stream in the drum. The material and asphalt are then mixed and moved through the passage and finally discharged.

574800

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