EP2807305B1 - Vorrichtung und verfahren zur herstellung beschichteter produkte, zum beispiel beschichteter bitumenprodukte, mit schutzplatten - Google Patents

Vorrichtung und verfahren zur herstellung beschichteter produkte, zum beispiel beschichteter bitumenprodukte, mit schutzplatten Download PDF

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Publication number
EP2807305B1
EP2807305B1 EP13704198.4A EP13704198A EP2807305B1 EP 2807305 B1 EP2807305 B1 EP 2807305B1 EP 13704198 A EP13704198 A EP 13704198A EP 2807305 B1 EP2807305 B1 EP 2807305B1
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EP
European Patent Office
Prior art keywords
plates
products
internal wall
chamber
coated products
Prior art date
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Application number
EP13704198.4A
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English (en)
French (fr)
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EP2807305A1 (de
Inventor
Antoine Carrasco
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Argumat SAS
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Argumat SAS
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Publication of EP2807305A1 publication Critical patent/EP2807305A1/de
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
    • E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
    • E01C19/1013—Plant characterised by the mode of operation or the construction of the mixing apparatus; Mixing apparatus
    • E01C19/1027—Mixing in a rotary receptacle
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
    • E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
    • E01C19/1013—Plant characterised by the mode of operation or the construction of the mixing apparatus; Mixing apparatus
    • E01C19/1022—Coating the solid ingredients by passing same through a shower or cloud of binder
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
    • E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
    • E01C19/1013—Plant characterised by the mode of operation or the construction of the mixing apparatus; Mixing apparatus
    • E01C19/1027—Mixing in a rotary receptacle
    • E01C19/1036—Mixing in a rotary receptacle for in-plant recycling or for reprocessing, e.g. adapted to receive and reprocess an addition of salvaged material, adapted to reheat and remix cooled-down batches
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
    • E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
    • E01C2019/1081—Details not otherwise provided for
    • E01C2019/109—Mixing containers having a counter flow drum, i.e. the flow of material is opposite to the gas flow
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
    • E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
    • E01C2019/1081—Details not otherwise provided for
    • E01C2019/1095—Mixing containers having a parallel flow drum, i.e. the flow of material is parallel to the gas flow

Definitions

  • the present invention relates to the general technical field of devices and processes for manufacturing coated products, for example with bitumen, to obtain bituminous coated products, from a mass of aggregates or solid granular products that it It consists of new and cold aggregates and / or used bituminous products for recycling or a mixture of both, in order to achieve, after drying the evacuation of moisture to obtain a finished coated product used for example in the field of construction and public works.
  • the invention also relates to a process for producing coated products, for example with bitumen, in a rotary kiln provided with an enclosure having a wall internal and a combustion zone and defining a circular direction and a longitudinal direction.
  • the devices for manufacturing coated products are known and use a drying oven which is generally in the form of a cylindrical body of revolution defining an enclosure having at least one inlet to one at its ends and an outlet at the other end, the drying oven being rotated by any suitable means while the aggregate mass of the pebble to be treated is introduced at one end so as to progress towards the outlet end to be treated.
  • the rotation of the enclosure thus makes it possible to circulate the aggregates that enter cold and wet through the inlet, towards the other outlet end while stirring and raising them in the enclosure with the help of all suitable means, and for example lifting blades mounted on the inner peripheries of the walls of the enclosure.
  • the known furnaces also use a heating flux produced by a burner associated with the enclosure, which burner furnishes a flame in a combustion zone of the enclosure, the flame emitting a flow of hot air circulating, depending on the type oven, against the current or in the direction of circulation of the cold and wet aggregates inside the enclosure.
  • the buckets form a series of containers arranged forming a circular band of successive buckets on the inner wall of the furnace in the combustion zone, the buckets having a partial overlap area of the inner wall of the furnace.
  • This provision consequently leaves between the successive buckets a free space as an input for the aggregates entering the combustion zone so that during the rotation of the oven the buckets are continuously filled in the lower part of the oven and then empty when they reach the upper side of the oven the oven thus allowing the cold aggregates to pour down the oven and start their drying while continuing their progress in the furnace to the exit zone.
  • the cold aggregates present in the buckets thus form a cold mass along the inner wall of the enclosure which provides a certain thermal insulation of the wall against the flame of the burner.
  • devices of this type do not solve the existence of clogging phenomena that occur in the combustion zone, clogging from the existence of aggregates loaded with bitumen or other viscous products which tend, in particular because of the thermal heterogeneity present in the different areas of the furnace to be sedimented and cause a general malfunction of the furnace.
  • the objects assigned to the invention therefore aim at proposing a new device and a new process for the manufacture of coated products, for example and in particular bituminous coated products, capable of overcoming the drawbacks mentioned above and of improving the operation of the device. , in particular to reduce the risk of clogging.
  • Another object of the invention is to propose a new device and a new method of manufacturing coated products that can provide excellent thermal protection of the device while improving its overall operation.
  • Another object of the invention is to propose a new device and a new process for manufacturing coated products that make it possible to ensure the treatment of aggregates masses of varying and diversified compositions.
  • Another object of the invention is to propose a new device and a new process for manufacturing coated products which are particularly easy to implement and whose maintenance or maintenance is facilitated.
  • the objects assigned to the invention are also achieved by means of a method for manufacturing coated products, for example with bitumen in a rotary kiln provided with an enclosure having an inner wall as well as a combustion zone and defining a circular direction and a longitudinal direction, said method being characterized in that provides thermal protection of the inner wall by maintaining a continuous air gap and of sufficient thickness in an interface 15 created between the inner wall 2A and a plurality of plates 13 extending at a distance from or against the inner wall 2A, said plates overlapping each other partially in consideration of the circular direction F1 and the longitudinal direction.
  • the figure 1 illustrates a general view of a device for manufacturing coated products, for example with bitumen to manufacture bituminous coated products.
  • the device illustrated in figure 1 is a so-called parallel current device insofar as the heating flow F flows in the same direction as the feed direction and progression of the granular products illustrated by the arrow F.
  • the invention can also be applied to devices for manufacturing coated products, in particular bituminous, said “ against the current " devices in which the heating flow flows in the opposite direction to that of granular products to dry and transform into bituminous coated products ( Fig. 4 ).
  • the device illustrated in a general way to the figure 1 comprises a furnace 1 comprising a substantially cylindrical enclosure 2 intended to be rotated about its longitudinal axis XX 'by a drive means (not shown in the figures) and defining a circular direction and a longitudinal direction, said drive means including, in a manner known per se, a source of energy, of the motor type, a series of conventional gears or drives, consisting for example of rollers engaging drive means secured to the outer wall of the enclosure 2 .
  • the longitudinal direction will correspond to the longitudinal axis X-X 'and the circular direction to the two directions in which the enclosure is rotated.
  • the oven 1 being intended to be rotated, it constitutes a rotary kiln with an enclosure 2 composed of several successive sections each having a specific function.
  • the enclosure 2 has an internal wall 2A and is provided at its two opposite ends with reference to the axis X-X ', on the one hand a main inlet 3 intended to receive aggregates or uncoated virgin granular products or recycled or a mixture of both, pebbles or aggregates, and secondly an outlet for the bituminous coated products manufactured in the enclosure 2, said granular products flowing from the main entrance 2 to the outlet 3 , along the longitudinal direction F to become coated products to the outlet 3, after passage and treatment in the chamber 2.
  • uncoated virgin granular product will be understood to mean any type of product of the aggregates, pebbles, aggregates, sands or other type, having sufficient mechanical strength to be used in the manufacture of coated products. of all kinds likely to be used as building materials in the field of public works, such as roads or walls, without such applications are therefore limiting.
  • recycled granular products any type of products of the kind aggregates, pebbles, aggregates, sands or other having already been used as building materials, for example of road or other, and having already been in this respect provided with a coating based on bitumen, such products are therefore intended to be recycled to recover their coating or coating parts.
  • All these virgin or recycled granular products therefore have a very heterogeneous particle size, a physical and chemical composition that is also very heterogeneous, as well as sizes, shapes, moisture content, consistency, etc. extremely varied.
  • the rotary kiln is designed so that the virgin or recycled granular products circulate from the main feed inlet 2 to the outlet 30 to become a bituminous coated product to the outlet 30, after successive passage: first in a combustion zone 4 into which the main inlet 3 opens via a channel 5, then into a drying zone 6 provided with lifting blades 6A, and finally in a mixing zone 7 in which it is also possible to introduce optionally and continuously, for example, a liquid coating product, for example through a pipe 8 so as to produce a bituminous coated product to the outlet 30.
  • the device for manufacturing coated products according to the invention also comprises a heating means 10 associated with the combustion zone 4 located at the beginning of the enclosure 2.
  • the heating means 10 produces, by the intermediate of a drying flame 11 generated by a burner, a drying flow flowing in a substantially longitudinal direction F and able to ensure the drying of the granular products.
  • the device for manufacturing coated products according to the invention also comprises means of protection 12 of the inner wall 2A of the enclosure 2, which protection means 12 are located in the combustion zone 4 because of the extremely high temperatures resulting from the thermal emission of the flame 11.
  • the protection means 12 are formed by a plurality of plates 13 extending at a distance from or against said inner wall 2A and overlapping each other partially in consideration of the circular direction F1 and the direction longitudinal to provide thermal protection of the inner wall 2A by creating an air gap in the interface 35 created between the inner wall 2A and the plurality of plates 13.
  • the plurality of plates 13 is disposed and extends away from the inner wall 2A to form an annular volume forming the interface 35 and for generating an air gap.
  • the plates 13 being fixed permanently by any conventional means well known to those skilled in the art, and for example by screwing.
  • the interface 35 defines a ring volume of variable thickness increasing or decreasing in the longitudinal direction X-X '.
  • the partial overlap between the plates 13 in the circular direction that is to say in the direction of rotation of the enclosure and in the longitudinal direction, of the order of a few centimeters for example, allows precisely in addition to a thermal protection of the inner wall 2A of the enclosure 2, to prevent the passage of all or part of the granular products 25 in the annular interface zone 35 extending between the inner wall 2A and the faces of the plates 13 vis-à-vis so that it avoids the risk of occurrence of clogging phenomenon.
  • the mounting and the geometric organization of the plates 13 is such that the plates 13 form a continuous protective mat 15 protecting the inner wall 2A in the combustion zone 4 on a complete section of revolution in consideration of the circular direction F1, said belt 15 comprising at least two continuous rows R1, R2 of plates 13 which are partially overlapping in consideration of the longitudinal direction X-X '.
  • the protective mat 15 is formed by a succession of several rows of plates 13 which overlap forming adjacent rows of plates 13 extending in the longitudinal direction so as to overlap partially in the circular direction and overlap partially in the longitudinal direction.
  • the plates 13 are of identical or paired shape, thus facilitating their manufacture and their assembly within the combustion zone 4.
  • each plate 13 comprises a central portion 20 with two opposite sides from which extend two opposite wings 21, 22, on either side of the general plane of extension P of the central portion 20.
  • each wing 21, 22 extends on one side and the other of the plane P, where, which amounts to the same above or below the plane P.
  • the central portion 20 and the two wings 21, 22 are substantially flat or slightly curved in the circular direction to fit the diameter of the cylindrical chamber 2 as shown in the figures.
  • the flat or curved central portion 20 and the two planar or curved wings 21, 22 have a quadrilateral shape.
  • the flat central part 20 has a general shape of rectangle or square or diamond, of average dimensions, in the circular and longitudinal direction respectively, of between 150 and 600 mm, more precisely between 150 and 400 mm
  • the planar or curved wings 21, 22 have a general shape of rectangle of average dimensions respectively in the circular direction of between 10 and 50 mm.
  • the plates 13 may vary in their shape and their geometrical dimensions and for example present a certain curvature, or even possess various geometric shapes and other than a quadrilateral, the essential being that they can being connected to each other so as to overlap each other and partially in the longitudinal direction and in the circular direction in order to effectively protect the inner wall 2A and to oppose the passage of the granular products 5 into the interface 35.
  • the plates 13 are positioned in each row so that, in consideration of the circular direction F1, each plate 13 is connected to a so-called upper plate 13S ( figure 7 ) and a plate 13 said lower 131 adjacent, the two wings 21, 22 of each plate 13 being disposed one above the other thus forming a so-called upper wing 21 S and a so-called lower wing 21I so that the upper wing 21S of a plate 13 covers the lower flange 211 of the neighboring upper plate and the lower flange 211 is covered by the upper flange of the lower plate and so on.
  • each plate 13 By virtue of this arrangement and the configuration of each plate 13, it is thus possible to form a zone of overlap between two adjacent plates which is formed by an upper wing 21 which covers a lower wing 22 thus making it possible to avoid the passage of the products. in the interface 35 during the rotation of the furnace 1.
  • the overlap between the lower flanges 22 and the upper flanges 21 illustrated in FIG. Figure 8 it is preferably not waterproof and there exists for example by construction and mounting a longitudinal gap 200 of small thickness for the creation of an air passage or fluid.
  • the plane of extension of the wings 21, 22 forms an angle ⁇ ( figure 8 ) which is of the order of 45 degrees relative to the extension plane P of the central portion 20, which angle is obviously caused to vary according to the diameter of the chamber 2.
  • the plurality of plates 13 form a convergent cone ( figure 4 ) or diverge ( figure 2 ) in consideration of the flow direction F granular products within the chamber 2.
  • the variant of figure 4 does not differ from that of the figure 2 only by the frustoconical convergent shape of the combustion zone 4 used in countercurrent devices instead of a frustoconical divergent shape used in parallel flow devices of the figure 2 .
  • the plates 13 are mounted with an inclination and form an angle ⁇ ( figure 2 or 4 ) corresponding to the angle formed between the horizontal plane PH and the general extension plane P of the central portion 20 of each plate.
  • the angle ⁇ is advantageously between 0 and about 5 degrees, the latter value forming the maximum practically feasible, it being understood that the shape of the plates is adapted to the divergent or convergent geometric configuration of the formed cone.
  • the device according to the invention may comprise a system 40 for recycling the fumes produced during the manufacture of the products embedded in the enclosure 2, said system recycling the fumes in the interface 35.
  • the recycling system 40 is connected to the output of the enclosure 2 and comprises a bag filter 43, an extraction means 45 and a recycling line 46 opening into the interface 15.
  • the figure 1 illustrates a variant of the invention in which the recycling is carried out after passage of the fumes in the filter 43, the recycling line is therefore located downstream of the bag filter 43.
  • driving recycling station is located or mounted upstream of the bag filter 43.
  • the recycling system 40 comprises an outlet pipe 47 controlled by a flap to direct the smoke to the outside if necessary without recycling or with partial recycling.
  • the recycling line 46 can lead into the interface 35 by one or more openings 48 integral with a closure panel 49 of the enclosure 2 ( Fig. 1 and 2 ).
  • the recycling system is ensured a better burning fumes which helps reduce their toxicity while injecting cooled gases in the interface 35 of the combustion zone 4 which helps maintain a blade of insulating air at low temperatures at this level.
  • the enclosure 2. This promotes the maintenance of good thermal insulation, avoids clogging and allows to feed the combustion zone with a mass of heavily loaded aggregates or even fully loaded with recycled materials without fear of clogging.
  • the invention also relates to a process for producing coated products, for example with bitumen in a rotary kiln provided with an enclosure having an inner wall and a combustion zone and defining a circular direction and a longitudinal direction, said method being such as provides thermal protection of the inner wall by maintaining a continuous air gap and sufficient thickness in an interface (35) created between the inner wall (2A) and a plurality of plates (13) s' extending at a distance from or against the inner wall (2A), said plates overlapping each other partially in consideration of the circular direction (F1) and the longitudinal direction X-X '.
  • the process is such that the air knife is maintained by recycling all or part of the fumes resulting from the manufacture of the coated products directly in the interface 35.
  • the frustoconical shape of the plate network 13 promotes the renewal of the air gap that can leak out between the inter-plate spaces 29 ( Fig. 3 and 7 ) above.
  • the rotation of the chamber 2 and in particular the truncated cone formed by the plurality of plates 13 in partial overlap makes it possible to ensure a gradual advance of the granular products 25 and a slight circular displacement of the products in the low zone by the wings 21, 22 positioned in mutual overlap which form a series of steps or successive steps.
  • the granular products 25, while progressing continuously along the arrow F in the chamber 2 in the longitudinal direction, are constantly stirred at the bottom of the combustion zone 4 while progressing continuously within the rotary kiln to reach the zone of combustion. drying 6 and finally the mixing zone 7.
  • the recycling of the fumes sucked by the extraction means 45, of the fan type continually renews the air gap, thus reinforcing its insulation efficiency.
  • the granular products are of course gradually dried and then coated in the kneading zone 7 by contact with bitumen and / or other coating ingredients.
  • the manufacturing device according to the invention can, without risk of clogging, ensure the manufacture of bituminous products from 0% of new and cold granular materials and 100% of used bituminous materials and therefore recycled or recycled. a mixture in any proportion of the two.
  • the device according to the invention also makes it possible to strongly limit the wear zones of the enclosure 2 in general and to facilitate the maintenance of the entire device. It is indeed possible to change only one or more plates 13 in case of wear, without having to change all the parts constituting the combustion zone 4.
  • the network of plates 13 due to the mutual overlap of the neighboring plates 13 in two directions of space, provides good thermal insulation of the inner wall 2A of the furnace by creating a continuous air gap over the entire internal surface of the enclosure in the interface 35.
  • This device finally makes it possible to eliminate the additional devices for introducing used bituminous products that are to be recycled and which are generally situated downstream of the flame 11 in the devices of the prior art. Indeed, the absence of the appearance of the classic clogging phenomenon in the combustion zone 4 by virtue of the device of the invention makes it possible to supply the combustion zone 4 directly with granular products recycled in a very large proportion or even totally.
  • the invention finds its industrial application in the design and use of devices and processes for manufacturing coated products, for example bituminous coated products.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Machines (AREA)
  • Muffle Furnaces And Rotary Kilns (AREA)
  • Laminated Bodies (AREA)
  • Moulding By Coating Moulds (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Claims (16)

  1. Vorrichtung zur Herstellung von mit Bitumen ummantelten Produkten, umfassend:
    - einen Ofen (1), umfassend ein im Wesentlichen zylindrisches Gehäuse (2), das dazu dient, mittels eines Antriebsmittels um seine Längsachse (X-X') in Drehung versetzt zu werden und eine Kreisrichtung und eine Längsrichtung definiert, wobei das Gehäuse (2) eine Innenwand (2A) aufweist und an seinen zwei gegenüberliegenden Enden auf der einen Seite mit einem Haupteintritt (3), der der Aufnahme von granulösen Rohprodukten (25) dient, die nicht ummantelt oder recycelt oder eine Mischung aus beidem sind, der Art von Kieseln oder Granulaten, und auf der anderen Seite mit einem Austritt (30) für die im Gehäuse (2) hergestellten ummantelten bituminösen Produkte versehen ist, wobei die granulösen Produkte (25) vom Haupteintritt (3) zum Austritt (30) zirkulieren, um sich am Austritt (30) nach dem Durchlauf und der Behandlung im Gehäuse (2) in ummantelte Produkte umzuwandeln,
    - ein Heizmittel (10), das eine Verbrennungszone (4) im Gehäuse (2) definiert und einen Trocknungsstrom erzeugt, der dafür geeignet ist, die Trocknung der granulösen Produkte (25) sicherzustellen,
    - Mittel zum Schutz der Innenwand (2A) des Gehäuses (2), die sich in der Verbrennungszone (4) befinden,
    dadurch gekennzeichnet, dass die Mittel zum Schutz durch eine Vielzahl von Platten(13) gebildet werden, die sich beabstandet von der oder gegen die Innenwand (2A) erstrecken und sich in Bezug auf die Kreisrichtung (F1) und die Längsrichtung teilweise gegenseitig überlappen, um den Wärmeschutz der Innenwand (2A) durch Erzeugung einer Luftschicht in der zwischen der Innenwand (2A) und der Vielzahl von Platten (13) erzeugten Schnittstelle (15) sicherzustellen.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Platten (13) einen durchgehenden Schutzteppich (15) bilden, der die Innenwand (2A) in der Verbrennungszone (4) in einem vollständigen Drehabschnitt in Bezug auf die Kreisrichtung (F1) schützt, wobei der Teppich mindestens zwei durchgehende Reihen an Platten (13) umfasst, die sich in Bezug auf die Längsrichtung teilweise überlappen.
  3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass der Schutzteppich (15) durch eine Folge von mehreren Reihen an sich überlappenden Platten gebildet wird, die benachbarte Reihen an Platten (13) bilden, die sich in Längsrichtung erstrecken.
  4. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Platten (13) von identischer oder gepaarter Form und Abmessung sind.
  5. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass jede Platte (13) einen mittleren Teil (20) mit zwei gegenüberliegenden Seiten umfasst, von denen sich zwei Flügel (21, 22) auf beiden Seiten der allgemeinen Erstreckungsebene (P) des mittleren Teils erstrecken.
  6. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass der mittlere Teil (20) und die zwei Flügel (21,22) im Wesentlichen eben sind.
  7. Vorrichtung nach einem der Ansprüche 5 bis 6, dadurch gekennzeichnet, dass der ebene mittlere Teil (20) und die zwei ebenen Flügel (21,22) eine viereckige Form aufweisen.
  8. Vorrichtung nach einem der Ansprüche 5 bis 7, dadurch gekennzeichnet, dass die Platten (13) in jeder Reihe so positioniert sind, dass in Bezug auf die Kreisrichtung (F1) jede Platte (13) mit einer benachbarten oberen Platte (13S) und unteren Platte (13I) verbunden ist, wobei die zwei Flügel (21, 22) jeder Platte (13) übereinander angeordnet sind und dabei einen oberen Flügel (21S) und einen unteren Flügel (22I) bilden, sodass der obere Flügel (21 S) einer Platte (13) sich mit dem unteren Flügel (22I) der benachbarten oberen Platte (21S) überlappt und der untere Flügel (22I) vom oberen Flügel (21S) der unteren Platte überlappt wird.
  9. Vorrichtung nach einem der Ansprüche 5 bis 8, dadurch gekennzeichnet, dass die Erstreckungsebene der Flügel (21, 22) einen Winkel β mit der Erstreckungsebene (P) des mittleren Teils (20) bildet.
  10. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Vielzahl von Platten (13) einen konvergenten oder divergenten Kegel bildet.
  11. Vorrichtung nach Anspruch 10, dadurch gekennzeichnet, dass die Platten (13) im Kegel mit einer Neigung angebracht sind und einen Winkel α bilden, der dem zwischen der horizontalen Ebene und der Erstreckungsebene des mittleren Teils gebildeten Winkel entspricht.
  12. Vorrichtung nach Anspruch 11, dadurch gekennzeichnet, dass der Winkel a zwischen 0 und 5 Grad beträgt.
  13. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass sie ein Recyclingsystem (40) für den bei der Herstellung der ummantelten Produkte im Gehäuse (2) entstandenen Rauch umfasst, wobei das System den Rauch in der Schnittstelle (15) recycelt.
  14. Vorrichtung nach Anspruch 13, dadurch gekennzeichnet, dass das Recyclingsystem (40) mit dem Austritt des Gehäuses (2) verbunden ist und einen Filter (43), ein Extraktionsmittel (45) und eine Rücklaufleitung (46), die in die Schnittstelle (15) mündet, umfasst.
  15. Verfahren zur Herstellung von mit Bitumen ummantelten Produkten in einem Drehofen, der mit einem Gehäuse versehen ist, das eine Innenwand sowie eine Verbrennungszone aufweist und eine Kreisrichtung und eine Längsrichtung definiert, wobei das Verfahren dadurch gekennzeichnet ist, dass der Wärmeschutz der Innenwand sichergestellt wird, indem eine durchgehende Schutzschicht von ausreichender Dicke in einer zwischen der Innenwand (2A) und einer Vielzahl von sich beabstandet von der oder gegen die Innenwand (2A) erstreckenden Platten (13) erzeugten Schnittstelle (35) aufrechterhalten wird, wobei die Platten sich in Bezug auf die Kreisrichtung (F1) und die Längsrichtung teilweise gegenseitig überlappen.
  16. Verfahren nach Anspruch 15, dadurch gekennzeichnet, dass die Schutzschicht durch Recycling des gesamten oder eines Teils des Rauchs, der durch die Herstellung der ummantelten Produkte entsteht, direkt in der Schnittstelle (35), aufrechterhalten wird.
EP13704198.4A 2012-01-25 2013-01-24 Vorrichtung und verfahren zur herstellung beschichteter produkte, zum beispiel beschichteter bitumenprodukte, mit schutzplatten Active EP2807305B1 (de)

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FR1250732A FR2986016B1 (fr) 2012-01-25 2012-01-25 Dispositif et procede de fabrication de produits enrobes, par exemple de produits enrobes bitumineux, a plaques de protection
PCT/FR2013/050149 WO2013110896A1 (fr) 2012-01-25 2013-01-24 Dispositif et procédé de fabrication de produits enrobes, par exemple de produits enrobes bitumineux, a plaques de protection

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FR2989393B1 (fr) * 2012-04-13 2014-06-06 Argumat Dispositif de fabrication de produits enrobes a chaud a sortie derivee et malaxeur externe et procede de fabrication d'enrobes a chaud correspondants
FI3931488T3 (fi) * 2019-04-04 2023-08-08 Ammann Schweiz Ag Asfaltintuotantolaitoksen kuumakaasugeneraattorin palamiskammio käsittäen ilmanohjauslevyt sekä menetelmä ilmanohjauslevyjen kiinnittämiseksi
CN111455780B (zh) * 2020-04-20 2021-11-16 枣庄旗胜建设集团有限公司 一种沥青发泡装置
DE102022211106B4 (de) * 2022-10-20 2024-06-06 Benninghoven Zweigniederlassung Der Wirtgen Mineral Technologies Gmbh Flammenschutzvorrichtung für einen Brenner, Lamelle für eine derartige Flammenschutzvorrichtung und Trockentrommel mit einer derartigen Flammenschutzvorrichtung
CN117127456A (zh) * 2023-08-24 2023-11-28 廊坊德基机械科技有限公司 一种自动控温的防粘再生干燥筒筒体
CN116905313B (zh) * 2023-09-12 2023-12-05 福建省铁拓机械股份有限公司 一种双回程内循环沥青混合料烘干滚筒

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DE3066121D1 (en) * 1980-02-12 1984-02-23 Creusot Loire Apparatus for preparing coated bituminous products for road surfaces
US5203693A (en) * 1991-10-01 1993-04-20 Astec Industries, Inc. Rotary drum dryer having internal flights
IT1257637B (it) * 1992-02-04 1996-02-01 Essiccatore-miscelatore a tamburo per la preparazione a ciclo continuodi conglomerati bituminosi con riciclaggio di materiali di recupero
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US20150030767A1 (en) 2015-01-29
WO2013110896A1 (fr) 2013-08-01
US9957674B2 (en) 2018-05-01
FR2986016B1 (fr) 2014-03-21
ES2581886T3 (es) 2016-09-08
FR2986016A1 (fr) 2013-07-26
CA2862236A1 (en) 2013-08-01
EP2807305A1 (de) 2014-12-03
CA2862236C (en) 2020-03-24

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