[특허]Method and device for heating worn road coating materials

FENIXFALT

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특허 상세정보

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Method and device for heating worn road coating materials

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	E01C-007/06 E01C-019/10
출원번호	US-0588763 (2005-02-07)
등록번호	US-9045867 (2015-06-02)
우선권정보	FR-04 50225 (2004-02-09)
국제출원번호	PCT/FR2005/050075 (2005-02-07)
§371/§102 date	20061004 (20061004)
국제공개번호	WO2005/075742 (2005-08-18)
발명자 / 주소	Lopez, Emile
출원인 / 주소	FENIXFALT
대리인 / 주소	Young & Thompson
인용정보	피인용 횟수 : 0 인용 특허 : 23

초록
▼

Process and device for heating a material constituted at least in part by worn road coatings to be recycled, particularly from milled materials or crushed agglomerates, characterized in that: heating worn road coatings to a first temperature with the help of first radiant heating elements disposed adjacent the worn road coatings to be recycled,mechanically moving these worn road coatings to be recycled during this heating step, andheating the worn road coatings to a second temperature with the help of second radiant heating elements, disposed adjacent th...

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1. A device for heating a material constituted at least in part by worn road coatings to be recycled, comprising: a first enclosed chamber having an upper portion and a lower portion, an inlet in the upper portion for receiving the worn road coatings to be recycled, an outlet in the lower portion for discharging the worn road coatings from the first enclosed chamber, a means for transferring the worn road coatings to be recycled from the inlet to the outlet, the means for transferring comprising inclined conveyors or inclined transfer screens, a means for radiant heating the worn road coatings to be recycled, the means for radiant heating providing sufficient heat to reach a first temperature between 105 and 130° C. and to render bitumen therein viscous, and a means for evacuating gaseous effluents from the first enclosed chamber; anda second enclosed chamber having an upper portion and a lower portion, an inlet in the upper portion for receiving the worn road coatings discharged from the first enclosed chamber, an outlet in the lower portion for discharging the worn road coatings from the second enclosed chamber, a means for transferring the worn road coatings to be recycled from the inlet to the outlet, the means for transferring comprising inclined conveyors or inclined transfer screens, a means for radiant heating the worn road coatings from said first enclosed chamber introduced to the inlet of the second enclosed chamber, the means for radiant heating providing sufficient heat to reach a second temperature between 160 and 220° C., and a means for evacuating gaseous effluents from the second chamber; anda horizontal conveyor for receiving the heated worn road coatings, disposed at the outlet of the first enclosed chamber. 2. The device according to claim 1, wherein each of the first and second enclosed chambers is a substantially parallelepipedal enclosed chamber and wherein the means for transferring in each of the first and second enclosed chambers further comprise a means for vibrating the inclined conveyors or inclined transfer screens, and wherein said means for radiant heating comprises panels. 3. The device according to claim 1, further comprising decomposition catalysts for treating the gaseous effluents emitted from the second enclosed chamber. 4. The device according to claim 2, wherein the means for transferring further comprises horizontal conveyors. 5. A device for heating a material constituted at least in part by worn road coatings to be recycled, comprising: a first enclosed chamber for heating worn road coatings to a first temperatures between 105 and 130° C. and to render bitumen therein viscous, the first enclosed chamber having an inlet at an upper portion and an outlet at a lower portion, a plurality of inclined conveyors disposed between the inlet and the outlet such that worn road coatings are transferred from one conveyor to another in a continuous manner from the inlet to the outlet, radiant heat panels being positioned proximate to the plurality of inclined conveyors for achieving the first temperature, and an opening in the upper portion for evacuating gaseous effluents;a horizontal conveyor disposed at the outlet of the first enclosed chamber for receiving the heated worn road coatings;a second enclosed chamber for heating the heated worn road coatings from the first enclosed chamber to a second temperatures between 160 and 220° C., the second enclosed chamber having an inlet for receiving the heated worn road coatings from the first enclosed chamber at an upper portion and an outlet at a lower portion, a plurality of inclined conveyors disposed between the inlet and the outlet such that worn road coatings are transferred from one conveyor to another in a continuous manner from the inlet to the outlet, radiant heat panels being positioned proximate to the plurality of inclined conveyors for achieving the second temperature, and an opening in the upper portion for evacuating gaseous effluents from the second enclosed chamber. 6. The device according to claim 5, wherein the plurality of inclined conveyors of the first enclosed chamber include a means for vibrating the inclined conveyors. 7. A device for heating a material constituted at least in part by worn road coatings to be recycled, comprising: a first enclosed chamber having an upper portion and a lower portion, an inlet in the upper portion for receiving the worn road coatings to be recycled, an outlet in the lower portion for discharging the worn road coatings from the first enclosed chamber, a means for transferring the worn road coatings to be recycled from the inlet to the outlet, the means for transferring comprising inclined conveyors or inclined transfer screens, a means for vibrating the inclined conveyors or inclined transfer screens, a means for radiant heating the worn road coatings to be recycled, the means for radiant heating providing sufficient heat to reach a first temperature between 105 and 130° C. and to render bitumen therein viscous, and a means for evacuating gaseous effluents from the first enclosed chamber;a horizontal conveyor for receiving heated worn road coatings disposed at the outlet of the first enclosed chamber; anda second enclosed chamber having an upper portion and a lower portion, an inlet in the upper portion for receiving the worn road coatings discharged from the first enclosed chamber, an outlet in the lower portion for discharging the worn road coatings from the second enclosed chamber, a means for transferring the worn road coatings to be recycled from the inlet to the outlet, the means for transferring comprising inclined conveyors or inclined transfer screens, a means for vibrating the inclined conveyors or inclined transfer screens, a means for radiant heating the worn road coatings from said first enclosed chamber introduced to the inlet of the second enclosed chamber, the means for radiant heating providing sufficient heat to reach a second temperature between 160 and 220° C., and a means for evacuating gaseous effluents from the second chamber.

인용문헌 (23)

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Method and device for heating worn road coating materials

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Method and device for heating worn road coating materials

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