Multiple burner zone controlled asphalt heating hood
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
E01C-023/14
E01C-023/06
F23C-099/00
출원번호
US-0942016
(2015-11-16)
등록번호
US-9915042
(2018-03-13)
발명자
/ 주소
Miles, John
출원인 / 주소
Cutler Repaving, Inc.
대리인 / 주소
Hovey Williams LLP
인용정보
피인용 횟수 :
0인용 특허 :
18
초록▼
A heating hood is operable to be advanced along a length of bituminous pavement to recycle at least part of the bituminous pavement. The heating hood includes a plurality of burners operable to combust a fuel so that each burner produces a heated exhaust stream. A lower margin of the heating hood is
A heating hood is operable to be advanced along a length of bituminous pavement to recycle at least part of the bituminous pavement. The heating hood includes a plurality of burners operable to combust a fuel so that each burner produces a heated exhaust stream. A lower margin of the heating hood is operable to discharge the heated exhaust streams onto the pavement, with the heated exhaust streams discharged from the lower discharge margin having no visible flame.
대표청구항▼
1. A heating hood operable to be advanced along a length of bituminous pavement to recycle at least part of the bituminous pavement, said heating hood comprising: a plurality of burners operable to combust a fuel so that each burner produces a heated exhaust stream; anda plurality of enclosures oper
1. A heating hood operable to be advanced along a length of bituminous pavement to recycle at least part of the bituminous pavement, said heating hood comprising: a plurality of burners operable to combust a fuel so that each burner produces a heated exhaust stream; anda plurality of enclosures operable to extend laterally along the pavement,each of said enclosures presenting a plenum that fluidly communicates with a corresponding one of the burners to receive the heated exhaust stream and distribute the heated exhaust stream laterally along the pavement,said enclosures positioned laterally alongside one another and cooperatively presenting a lower margin of the heating hood operable to discharge the heated exhaust streams onto the pavement, with the heated exhaust streams discharged from the lower margin having no visible flame,each of said enclosures presenting a lower outlet that fluidly communicates with the respective plenum to discharge at least part of the respective heated exhaust stream from the respective plenum,each of said enclosures presenting an inlet that fluidly communicates with the respective plenum to permit the heated exhaust stream to flow into the respective plenum from the burner,each of said enclosures including a baffle positioned within the respective plenum and extending laterally to direct the heat exhaust stream within the plenum. 2. The heating hood as claimed in claim 1, each of said enclosures including a pair of adjacent baffles positioned within the respective plenum and extending laterally to direct the heat exhaust stream within the plenum,said pair of adjacent baffles cooperatively defining a lateral chamber therebetween, with the chamber extending from a location adjacent the inlet in a laterally outward direction away from the inlet. 3. The heating hood as claimed in claim 2, said pair of adjacent baffles diverging from each other in the laterally outward direction so that a cross-sectional dimension of the chamber increases in the laterally outward direction. 4. A heating hood operable to be advanced along a length of bituminous pavement to recycle at least part of the bituminous pavement, said heating hood comprising: a plurality of burners operable to combust a fuel so that each burner produces a heated exhaust stream;a plurality of enclosures operable to extend laterally along the pavement,each of said enclosures presenting a plenum that fluidly communicates with a corresponding one of the burners to receive the heated exhaust stream and distribute the heated exhaust stream laterally along the pavement,said enclosures positioned laterally alongside one another and cooperatively presenting a lower margin of the heating hood operable to discharge the heated exhaust streams onto the pavement, with the heated exhaust streams discharged from the lower margin having no visible flame,each of said enclosures presenting a lower outlet that fluidly communicates with the respective plenum to discharge at least part of the respective heated exhaust stream from the respective plenum; anda hood frame,said plenum enclosures being shiftably attached to the hood frame to permit up and down movement of the outlet relative to the hood frame. 5. The heating hood as claimed in claim 4, each of said enclosures including a perforated lower wall that defines at least part of the lower margin of the heating hood and presents a plurality of perforations that cooperatively provide the lower outlet. 6. The heating hood as claimed in claim 4, an adjacent pair of said plenum enclosures cooperatively presenting a lateral gap therebetween, with the gap permitting relative movement between each of the adjacent pair of plenum enclosures. 7. A heating hood operable to be advanced along a length of bituminous pavement to recycle at least part of the bituminous pavement, said heating hood comprising: a plurality of burners operable to combust a fuel so that each burner produces a heated exhaust stream;a plurality of enclosures operable to extend laterally along the pavement,each of said enclosures presenting a plenum that fluidly communicates with a corresponding one of the burners to receive the heated exhaust stream and distribute the heated exhaust stream laterally along the pavement,said enclosures positioned laterally alongside one another and cooperatively presenting a lower margin of the heating hood operable to discharge the heated exhaust streams onto the pavement, with the heated exhaust streams discharged from the lower margin having no visible flame; anda hood frame,said plenum enclosures being shiftably attached to the hood frame to permit up and down movement of the lower margin relative to the hood frame. 8. The heating hood as claimed in claim 7, each of said enclosures presenting an inlet that fluidly communicates with the respective plenum to permit the heated exhaust stream to flow into the respective plenum from the burner. 9. The heating hood as claimed in claim 7; and exhaust ducts that fluidly interconnect each burner and a corresponding one of the enclosures to carry the exhaust stream to the corresponding plenum. 10. The heating hood as claimed in claim 9, each of said exhaust ducts being mounted on and supported by the corresponding one of the enclosures. 11. The heating hood as claimed in claim 7; and an exhaust duct that fluidly interconnects one of the burners and one of the enclosures to carry the exhaust stream to the corresponding plenum. 12. The heating hood as claimed in claim 11, said one enclosure presenting an enclosure inlet that fluidly communicates with the respective plenum to permit the heated exhaust stream to flow into the respective plenum from the burner,said exhaust duct presenting a duct outlet, with the exhaust duct being mounted so that the enclosure inlet of the one enclosure fluidly communicates with the duct outlet. 13. The heating hood as claimed in claim 12, said exhaust duct being mounted on and supported by the one enclosure. 14. The heating hood as claimed in claim 12, said exhaust duct presenting a duct inlet spaced laterally from the duct outlet, with the duct inlet at least partly receiving the burner. 15. The heating hood as claimed in claim 12, said burner presenting a burner outlet that discharges the exhaust stream,said burner outlet being spaced laterally from the duct outlet. 16. The heating hood as claimed in claim 15, said burner outlet and said duct outlet cooperatively defining an exhaust discharge length dimension, with the exhaust discharge length dimension being sized so that the flame discharged by the burner is extinguished before reaching the duct outlet. 17. The heating hood as claimed in claim 16, said exhaust discharge length dimension ranging from about two feet to about six feet. 18. The heating hood as claimed in claim 7; multiple heating zones each including at least one of the enclosures and at least one of the burners; anda fuel system including multiple regulators fluidly connected in parallel with one another so that each regulator supplies fuel, independently of the other regulators, to the at least one burner associated with a corresponding one of the heating zones. 19. The heating hood as claimed in claim 18; and a compressed air system including multiple air valves fluidly connected in parallel with one another so that each air valve supplies compressed air, independently of the other air valves, to the at least one burner associated with a corresponding one of the heating zones. 20. A heating hood operable to be advanced along a length of bituminous pavement to recycle at least part of the bituminous pavement, said heating hood comprising: a plurality of burners operable to combust a fuel so that each burner produces a heated exhaust stream;a plurality of enclosures operable to extend laterally along the pavement,each of said enclosures presenting a plenum that fluidly communicates with a corresponding one of the burners to receive the heated exhaust stream and distribute the heated exhaust stream laterally along the pavement,said enclosures positioned laterally alongside one another and cooperatively presenting a lower margin of the heating hood operable to discharge the heated exhaust streams onto the pavement, with the heated exhaust streams discharged from the lower margin having no visible flame; anda hood frame that supports the enclosures,each of said enclosures including a perforated lower wall that defines an outlet presented by the lower margin of the heating hood, with the lower walls being shiftable up and down relative to the hood frame. 21. The heating hood as claimed in claim 20, said plenum enclosures being shiftably attached to the hood frame to move up and down relative to the hood frame. 22. A hot air heating hood operable to be advanced along a length of bituminous pavement to recycle at least part of the bituminous pavement, said heating hood assembly comprising: a hood structure defining a lower discharge margin operable to overlie the pavement;a plurality of burners operable to combust a fuel so that each burner produces a heated exhaust stream; anda plurality of elongated exhaust ducts presenting duct outlets that fluidly communicate with the lower discharge margin,each of said exhaust ducts fluidly communicating with a corresponding one of the burners to receive and carry the respective heated exhaust stream to the lower discharge margin, with the lower discharge margin being operable to discharge the heated exhaust streams onto the pavement, and with the heated exhaust streams discharged from the lower discharge margin having no visible flame,said hood structure presenting a plenum fluidly communicating with said exhaust ducts,said hood structure presenting a lower outlet that fluidly communicates with the plenum to discharge at least part of the heated exhaust streams from the plenum,said hood structure including a plurality of enclosures, with each of said enclosures presenting an inlet that fluidly communicates with the plenum and at least one of the exhaust ducts to permit the respective heated exhaust stream to flow into the plenum from a respective burner. 23. The heating hood as claimed in claim 22, said hood structure including a perforated lower wall that defines at least part of the lower discharge margin and presents a plurality of perforations that cooperatively provide the lower outlet of the hood structure. 24. The heating hood as claimed in claim 22, said hood structure including a baffle positioned within the plenum and extending laterally to direct the respective heat exhaust stream within the plenum. 25. The heating hood as claimed in claim 24, said hood structure including a pair of adjacent baffles positioned within the plenum and extending laterally to direct the respective heat exhaust stream within the plenum,said pair of adjacent baffles cooperatively defining a lateral chamber therebetween, with the chamber extending from a location adjacent the inlet in a laterally outward direction away from the inlet. 26. The heating hood as claimed in claim 25, said pair of adjacent baffles diverging from each other in the laterally outward direction so that a cross-sectional dimension of the chamber increases in the laterally outward direction. 27. The heating hood as claimed in claim 22, said exhaust ducts being mounted on and supported by the hood structure. 28. The heating hood as claimed in claim 27, each of said exhaust ducts presenting a duct inlet spaced laterally from the duct outlet, with each duct inlet at least partly receiving the corresponding one of the burners. 29. The heating hood as claimed in claim 27, each of said burners presenting a burner outlet that discharges the exhaust stream,each of said burner outlets being spaced laterally from the corresponding duct outlet. 30. The heating hood as claimed in claim 29, each of said burner outlets and said corresponding duct outlets cooperatively defining an exhaust discharge length dimension, with the exhaust discharge length dimension being sized so that the flame discharged by each of the burners is extinguished before reaching the corresponding duct outlet. 31. The heating hood as claimed in claim 22, said enclosures positioned laterally alongside one another and cooperatively presenting the lower discharge margin,said exhaust ducts positioned alongside one another and each fluidly connected to a respective one of the enclosures. 32. The heating hood as claimed in claim 22; multiple heating zones each including at least one of the exhaust ducts and at least one of the burners; anda fuel system including multiple regulators fluidly connected in parallel with one another so that each regulator supplies fuel, independently of the other regulators, to the at least one burner associated with a corresponding one of the heating zones. 33. The heating hood as claimed in claim 32; and a compressed air system including multiple air valves fluidly connected in parallel with one another so that each air valve supplies compressed air, independently of the other air valves, to the at least one burner associated with a corresponding one of the heating zones.
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