Claims
- 1. An apparatus for treating asphaltic concrete comprising
- an elongated rotatable drum having a burner at a first end thereof for directing flame and hot gases of combustion into said drum toward an opposite second end,
- first means for introducing composition into said drum intermediate said first and second ends in a first section of said drum,
- second means for introducing composition into said drum adjacent said second end in a second section of said drum,
- first means for recovering composition adjacent said first end, and
- second means for recovering composition from said drum between said first and second means for introducing composition.
- 2. Apparatus of claim 1 wherein said first means for introducing composition comprises a first input port communicating interiorly of said drum between said first and second ends thereof.
- 3. Apparatus of claim 2 wherein said first input port extends radially into said drum.
- 4. Apparatus of claim 3 wherein said first means for introducing composition includes a plurality of said first input ports.
- 5. Apparatus of claim 4 including means for feeding composition to said first input ports.
- 6. Apparatus of claim 2 wherein said first means for recovering composition comprises a first recovery port communicating interiorly of said drum adjacent said first input port.
- 7. Apparatus of claim 2 wherein said second means for introducing composition comprises a second input port adjacent said second end of said drum.
- 8. Apparatus of claim 1 wherein said second means for recovering composition comprises a second recovery port.
- 9. Apparatus of claim 1 including first conveyor means for directing at least a portion of composition recovered at said first end of said drum to said first section of said drum.
- 10. Apparatus of claim 9 including second conveyor means for directing at least a portion of composition recovered at said first end of said drum to said second section of said drum.
- 11. Apparatus of claim 1 including second conveyor means for directing at least a portion of composition recovered at said first end of said drum to said second section of said drum.
- 12. Apparatus for producing asphaltic concrete comprising:
- an elongated rotatable drum having a first end and a second end, a first section extending from a location intermediate said drum ends to said first drum end, and a second section extending from said second drum end to said intermediate location,
- a burner at said first end for introducing flame and hot gases of combustion into said drum,
- a first input port for introducing composition into said first section of said drum adjacent said intermediate location,
- a second input port for introducing composition into said second portion of said drum adjacent said second drum end,
- a first recovery port adjacent said first end for recovering composition from said first section, and
- a second recovery port adjacent said intermediate location for recovering composition from said second section.
- 13. Apparatus of claim 12 including first conveyor means for directing a portion of composition from said first recovery port to said first input port.
- 14. Apparatus of claim 13 including second conveyor means for directing a portion of composition from said first recovery port to said second input port.
- 15. Apparatus of claim 12 including second conveyor means for directing a portion of composition from said first recovery port to said second input port.
- 16. An apparatus for treating asphaltic concrete comprising:
- an elongated rotatable drum having a burner at a first end thereof for directing hot gases for heating composition therein,
- a first input port for introducing particulate composition into a first section of said drum extending between said first input port and said first end of said drum,
- a second input port at a second end of said drum opposite said first end for introducing particulate composition into a second section of said drum extending between said second input port and said first section,
- a first recovery port adjacent said first end of said drum for recovering heated composition from said first section, and
- a second recovery port located in said second section adjacent said second input port for recovery heated composition from said second section.
Parent Case Info
This is a divisional of co-pending application Ser. No. 293,283, filed on Aug. 17, 1981 now U.S. Pat. No. 4,481,039.
US Referenced Citations (13)
Divisions (1)
|
Number |
Date |
Country |
Parent |
293283 |
Aug 1981 |
|