Abstract

Asphalt production facility and method for making asphalt in such an asphalt production facility Asphalt production facility and method for making asphalt in such an asphalt production facility The invention relates to an asphalt production facility (1) comprising: a drum dryer (3), a combustion chamber (9), a burner (11) configured to generate a hot gas flow (F1) circulating in the drum dryer (3), at least one first device (13) for the introduction of asphalt aggregates to be recycled that defined at least one recycling area (15), a cooling channel (17) defined between a wall (19) of the combustion chamber (9) and an external envelope (30′) of the drum (3), a device (21) for injection of a cooling fluid (F4) into the cooling channel (17), and a control and regulation system (23) for piloting the injection device (21) in such a way that the hot gas flow (F1) has a temperature that is lower than 700° C. in said recycling area (15). Asphalt production facility and method for making asphalt in such an asphalt production facility The invention relates to an asphalt production facility (1) comprising: a drum dryer (3), a combustion chamber (9), a burner (11) configured to generate a hot gas flow (F1) circulating in the drum dryer (3), at least one first device (13) for the introduction of asphalt aggregates to be recycled that defined at least one recycling area (15), a cooling channel (17) defined between a wall (19) of the combustion chamber (9) and an external envelope (30′) of the drum (3), a device (21) for injection of a cooling fluid (F4) into the cooling channel (17), and a control and regulation system (23) for piloting the injection device (21) in such a way that the hot gas flow (F1) has a temperature that is lower than 700° C. in said recycling area (15). A method for making asphalt in such asphalt production facility.

IPC Classes  ?

• E01C 19/10 - Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resinsApparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions

Abstract

The invention relates to a device (1) for processing granular products, comprising: - a chamber (2), - a heating means (5) designed to generate a drying flow (F) passing through a drying section (6B) of the chamber (2), - a main discharger (7A) of a main flow (P) of emanations, which is connected to said chamber (2), - a tapped-off discharger (7B) of a tapped-off flow (D) which is connected to said chamber (2) at the drying section (6B) and to said main discharger (7A) in order to transmit the tapped-off flow (D) to said main discharger (7A), and being characterized in that it comprises a system for regulating the temperature of the main flow (P) which system is designed to increase or decrease the flow rate of the tapped-off flow (D) as a function of the temperature of the main flow (P). Devices for processing granular products.

IPC Classes  ?

• F26B 11/02 - Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles
• E01C 19/10 - Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resinsApparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
• F26B 11/04 - Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis

Abstract

A device for manufacturing hot-mix coated materials includes an oven (1) having an enclosure (2) provided towards its two opposite ends with a main inlet (3) designed to receive granular materials and with a main outlet; and a heater (10) defining a combustion section (5) inside the enclosure (2). The enclosure (2) starting with the combustion section (5) and continuing with a drying section (6), and then with a mixing section (7). The device is further provided with a bypass outlet (11) and with an external mixer (12) that is connected to the bypass outlet (11), which outlet is fitted with a blocking system (15) allowing granular materials to pass towards the inlet (13) of the external mixer (12) and a closed position allowing granular materials to pass towards the mixing section (7).

IPC Classes  ?

• B28C 5/46 - Arrangements for applying super- or sub-atmospheric pressure during mixingArrangements for cooling or heating during mixing
• B05C 3/08 - Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material the work being immersed in the liquid or other fluent material with special provision for agitating the work or the liquid or other fluent material the work and the liquid or other fluent material being agitated together in a container, e.g. tumbled
• B01F 13/10 - Mixing plant, including combinations of dissimilar mixers
• E01C 19/10 - Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resinsApparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
• B05C 11/00 - Component parts, details or accessories not specifically provided for in groups
• B05D 1/18 - Processes for applying liquids or other fluent materials performed by dipping
• C09D 195/00 - Coating compositions based on bituminous materials, e.g. asphalt, tar or pitch

Abstract

said device being characterized in that the protective means are formed by a plurality of plates (13) that extend at some distance away from or else against the inside well (2A), and that are mutually overlapping in part so as to protect the inside wall (2A) thermally. Methods and devices for bituminous coated materials.

IPC Classes  ?

• E01C 19/10 - Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resinsApparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions

Abstract

The invention concerns a device for producing hot coated products, for example coated with bitumen, comprising: - a furnace (1) comprising a chamber (2) provided, at the two opposing ends of same, with a main inlet (3) intended to receive granular products and a main outlet, - a heating means (10) defining a combustion section (5) in the chamber (2), said chamber (2) continuing from said combustion section (5) into a drying section (6), then a mixing section (7), characterised in that it is provided with a branched outlet (11), and an external mixer (12) connected to said branched outlet (11) which is fitted with a closure system (15) allowing the passage of the granular products to the inlet (13) of the external mixer (12) and allowing the passage of the granular products to the mixing section (7). Device and method for producing bituminous coated products.

IPC Classes  ?

• E01C 19/10 - Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resinsApparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions

Abstract

The invention concerns a device for producing hot-mix products, for example with bitumen, comprising: - a furnace comprising an enclosure (2) that is rotated, said enclosure (2) being provided with a main inlet intended to receive granular products, and an outlet (30), said granular products flowing from the main inlet towards the outlet, - a heating means defining a combustion section (5) in the enclosure (2) and generating a drying flow, said enclosure (2) continuing into a drying section (6), then into a mixing section (7), characterised in that the enclosure (2) is provided with a system (12) for discharging the hot granulates, said system (12) being integrated between the drying section and the mixing section and being positionable between an active position and an inactive position.

IPC Classes  ?

• E01C 19/10 - Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resinsApparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions

Abstract

The invention relates to a device for producing coated products comprising: a furnace comprising a chamber (2) intended to be rotated and having an inner wall (2A) and being provided with a main inlet (3) intended to receive uncoated virgin or recycled granular products (25) or a mixture of the two, and an outlet for the bituminous coated products produced in the chamber (2), a heating means defining a combustion area (4) in the chamber (2) and generating a drying flow capable of drying the granular products (25), protection means for protecting the inner wall (2A) which are located in the combustion area (4), characterised in that the protection means are formed from a plurality of plates (13) extending at a distance from or against said inner wall (2A) and mutually overlapping in a partial manner to ensure the thermal protection of the inner wall (2A). The invention also relates to a method for producing bituminous coated products.

IPC Classes  ?

• E01C 19/10 - Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resinsApparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions