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EP0391427A2 - Procédé et dispositif de préparation sans danger pour l'environnement d'une composition asphaltique avec asphalte récupéré usé - Google Patents

Procédé et dispositif de préparation sans danger pour l'environnement d'une composition asphaltique avec asphalte récupéré usé Download PDF

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Publication number
EP0391427A2
EP0391427A2 EP19900106604 EP90106604A EP0391427A2 EP 0391427 A2 EP0391427 A2 EP 0391427A2 EP 19900106604 EP19900106604 EP 19900106604 EP 90106604 A EP90106604 A EP 90106604A EP 0391427 A2 EP0391427 A2 EP 0391427A2
Authority
EP
European Patent Office
Prior art keywords
section
drum device
burner
exhaust gases
drum
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP19900106604
Other languages
German (de)
English (en)
Other versions
EP0391427B1 (fr
EP0391427A3 (en
Inventor
Rudolf Prof. Dr.-Ing. Jeschar
Reinhard Prof. Dr.-Ing. Scholz
Volker Dr.-Ing. Frisch
Reinhard Dr.-Ing. Wagner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pwe Planungsgesellschaft fur Warme- und Energietechnik Mbh
Deutsche Asphalt GmbH
Original Assignee
Pwe Planungsgesellschaft fur Warme- und Energietechnik Mbh
Deutsche Asphalt GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pwe Planungsgesellschaft fur Warme- und Energietechnik Mbh, Deutsche Asphalt GmbH filed Critical Pwe Planungsgesellschaft fur Warme- und Energietechnik Mbh
Priority to AT90106604T priority Critical patent/ATE85820T1/de
Publication of EP0391427A2 publication Critical patent/EP0391427A2/fr
Publication of EP0391427A3 publication Critical patent/EP0391427A3/de
Application granted granted Critical
Publication of EP0391427B1 publication Critical patent/EP0391427B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E01C19/1004—Reconditioning or reprocessing bituminous mixtures, e.g. salvaged paving, fresh patching mixtures grown unserviceable; Recycling salvaged bituminous mixtures; Apparatus for the in-plant recycling thereof
    • 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
    • E01C19/1013—Plant characterised by the mode of operation or the construction of the mixing apparatus; Mixing apparatus
    • E01C19/105—Mixing or coating by a combination of methods covered by E01C19/1018 - E01C19/104, excluding E01C19/1036
    • 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
    • E01C19/1059—Controlling the operations; Devices solely for supplying or proportioning the ingredients
    • E01C19/1063—Controlling the operations
    • 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 invention relates to a method and a device for the environmentally friendly preparation of asphalt mix with reuse of broken old asphalt and addition of new material such as Gravel, grit or sand, the old asphalt portion being processed in a first drum device and the new material portion being processed in a second drum device and the pollutant-laden exhaust gases from the first drum device being introduced into the burner area of the second drum device.
  • new material such as Gravel, grit or sand
  • the CH x and CO contaminated and contain the finest bitumen particles exhaust gases from the first drum device are introduced directly into the second drum device and heated under the influence of the burner acting in the second drum device so high that the pollutants are burned or decomposed, the in the second drum device further heated exhaust gases together with the burner gases be used to heat the new material to temperatures above those of the old asphalt. It is furthermore provided that the exhaust pipe leading from the first drum device opens directly adjacent to the burner in the second drum device, ie the pollutant-laden exhaust gases from the first drum device are thus transported as close as possible to or into the burner flame.
  • the second drum device would have to be operated at even higher temperatures between approximately 800 to 1000 ° C., and the exhaust gas from the first drum device should be mixed as evenly as possible with the hot combustion gases of the burner of the second drum device.
  • the high temperature has the disadvantage that the new material is heated too high and therefore cannot be added immediately after leaving the second drum device to the old asphalt portion discharged from the first drum device in the compulsory mixer, because this old asphalt portion is heated to a maximum of only 220 °, advantageously to 180 °.
  • the second drum device works in countercurrent and is essentially divided into two sections, the new material portion being processed in the first section and before reaching the second section in which the burner is arranged with its burner flame, is led out of the second drum device, the pollutant-laden exhaust gases from the first drum device are intensively mixed with the combustion gases of the burner flame in the second section of the second drum device, and the pollutants such as CH x , CO and finest bitumen particles are burned out and then all of them Exhaust gases as hot gas for the preparation of the new material portion are passed through the first section and then out.
  • the intensive mixing of the exhaust gases from the first drum device with the combustion gases of the burner of the second drum device advantageously takes place in that the exhaust gases are introduced with swirl into the second section of the second drum device.
  • the swirl of the exhaust gases is brought about by a tangential introduction of the latter into the second section. This above-described introduction of the exhaust gases into the second section ensures particularly intensive mixing with the combustion gases.
  • the burner flame is advantageously also swirled by appropriate introduction of the primary air into the burner.
  • the swirl of the exhaust gases can be either the same or opposite to the swirl of the burner flame or the combustion gases.
  • the formation of a special section of the drum device reserved only for the burnout of the pollutants makes it possible to form a precisely defined flame or gas duct which promotes the burnout of the pollutants.
  • an intensive mixing of the burner flame on the one hand with the exhaust gases to be burned out on the other hand can be achieved.
  • the exhaust gases from the first drum device can already be mixed with the primary air of the burner of the second drum device in an adjustable ratio.
  • the exhaust gases emerging from the second section are advantageously cooled down, so that the new material processed in the first section of the second drum device is heated by the exhaust gases to a maximum of 300 ° C. immediately before the beginning of the second section of the second drum device.
  • This cooling of the exhaust gases takes place, for. B. by spraying water at the transition area from the first to the second section of the drum device.
  • This cooling process with regard to the exhaust gases at the predefined location within the drum device allows, on the one hand, a process-appropriate temperature determination for the new material intended for further processing and, on the other hand, a first cooling of the exhaust gases, so that these can be passed through the downstream filter systems without further cooling, if necessary, without destroying them.
  • the old asphalt portion is advantageously processed in a co-current drum device. This mode of operation of the first drum device ensures gentle treatment of the old asphalt portion.
  • the object of the invention further to create a device for carrying out the method according to the invention is achieved in that the second drum device is divided into a countercurrent drum and is essentially divided into two different sections, the first section starting from the first Front wall, conveying devices are provided for the new material to be processed in this section, the burner is arranged in the second section, which is delimited from the first section by an outlet device for the new material, and a feed line for the from the first is located immediately adjacent to or in the burner Exhaust gas polluted by the drum device is provided.
  • This design of the second drum device ensures that there are two areas defined in terms of the method, one area being provided exclusively for the combustion of pollutants and the other area exclusively for the thermal treatment of the new material portion.
  • This design of the second section permits a structurally simpler design of the burner arrangement and the feed lines for the exhaust gas to be introduced in this section from the first drum device.
  • the second end wall which closes the second section to the outside, is advantageously designed as a feed line for the exhaust gases from the first drum device.
  • the feed line is advantageously of spiral design, and the exhaust gases are introduced tangentially into the second section in this feed line. This training allows a special swirl of the supplied exhaust gases.
  • the device proposed for carrying out the method according to the invention forms part of an asphalt processing plant, as is shown schematically in FIG. 1.
  • the asphalt processing plant works essentially with two parallel drum devices 1 and 2, of which the drum device 1 for the processing of the old asphalt portion M A in cocurrent and the second drum device 2 for the Preparation of the new material portion M N works in countercurrent. Both drum devices 1 and 2 are followed by mixers 3 and 4, in which the old asphalt portion M A and the new material portion M N are brought together and brought together to form the asphalt mixture M G to be processed.
  • Bitumen B and filler material F are added to the asphalt material.
  • the old asphalt portion M A is drawn off from a storage device 5 via a wall scale 6 and introduced into the drum device 1, it being passed through the interior of the drum device 1 heated by the burner 7 in direct current.
  • This drum device 1 is provided at its end opposite the burner 7 with a schematically indicated exhaust gas line 8 and connected via this to the second drum device 2, the exhaust gas line 8 opening out adjacent to the burner 9 or possibly directly into it.
  • the new material fraction M N to be processed therein is drawn off from a storage device 11 by means of a belt scale 10 and introduced into the end wall 12 opposite the burner 9 and in counterflow through the first section 13 until shortly before the start of the second Section 14 out transported through, heated and then discharged from the second drum device 2.
  • the second drum device 2 Adjacent to the end wall 12, the second drum device 2 has an exhaust gas disposal line 15, which is connected to a filter dedusting system 16. From this filter dedusting system 16, the exhaust gases are released into the environment by means of a ventilation device 17.
  • the asphalt mix fractions M A and M N heated in the drum devices 1 and 2 are taken up by a first mixer 3, which can be designed, for example, as a double-shaft, forced and continuous mixer.
  • a first mixer 3 fresh bitumen B from a bitumen storage container 18 and filler material F from a filler storage container 19 are again drawn off and added, mixed together and further heated so that the desired final temperature is maintained.
  • the mixer 3 can be followed by a structurally corresponding second mixer 4. Finally, the completely prepared asphalt mix M G is withdrawn from the second mixer 4 and made available in a loading device 20 for removal.
  • the second drum device 2 is essentially divided into two sections 13 and 14, which have different lengths.
  • the first section 13 is closed at one end by a first end wall 12, which end wall can contain both the total gas outlet 15 and an addition device (not shown in the figures) for the new material M N to be processed in the second drum device 2.
  • the other end of the first section of the second drum device 2 borders on the second section 14 of the second drum device 2 and at this point a cooling device 21 is provided, which is designed, for example, as water injection.
  • a cooling device 21 is provided, which is designed, for example, as water injection.
  • the evaporation energy of the water is used in particular for cooling the hot gases.
  • the water injection device consists, for. B. from an annular, water-carrying manifold with several nozzles distributed over the pipe length. The purpose of this arrangement is to cool the hot gases as evenly as possible over the entire drum cross section.
  • the second section 14 of the drum device 2 is closed off from the outside by the second end wall 22, which is designed as a feed line 23 for the exhaust gas brought in by the first drum device and contaminated with pollutants.
  • the burner 9 which is only indicated schematically in FIG. 1, is provided as a burner 24 arranged concentrically to the longitudinal axis 25 of the second section 14.
  • the diameter of the second section 14 is made smaller compared to the diameter of the first section 13 of the drum device 2, furthermore the longitudinal axis 25 of the second section 14 is offset upwards relative to the longitudinal axis 26 of the first section 13, so that the transition point between the first section 13 and the second section 14 of the drum device 2 below the second section 14 results in a distance which contains the outlet device 27 for the new material M N.
  • the supply line 23 for the exhaust gas from the first drum device 1 is, seen in the axial direction, spiral, so that the exhaust gases introduced therein are introduced tangentially into the interior of the second section 14 of the drum device 2, namely in a ring along the walls of the second section 14 and concentric to the burner flame of the burner 24.
  • This burner 24 receives the Pri necessary for the combustion of the fuel Mar air through the supply line 28, which may also be designed so that it introduces the primary air tangentially into the burner 24 and thus the burner flame experiences a swirl.
  • the swirl of the burner flame in turn and the swirl of the exhaust gas supplied through the feed line 23 can be of the same or opposite.
  • supply line 23 for the exhaust gases and supply line 28 for the primary air of the burner 24 are connected to one another by the line 29, i. that is, a part of the exhaust gases from the first drum device 1 and the necessary primary air are mixed with one another in a certain ratio before being fed to the burner 18.
  • the exhaust gases, which are not fed via the burner to the drum device, are fed tangentially to section 14 of the drum device 2 via the feed line 23.
  • Corresponding devices for setting this mixing ratio are not shown in the drawings.
  • the new material M N introduced at the end wall 12 and intended for processing is transported through this first section 13 to the outlet device 27 by rotating the first section of the second drum device 2 and the conveying devices provided therein at a specific speed which can be changed.
  • the new material M N should not have a temperature higher than 300 ° C at its outlet, namely then together with the old asphalt portion M A processed in the first drum device 1 in the downstream mixers 3 and 4 and with the addition of Fresh bitumen B and filler material F can be brought together and further processed without intermediate storage, namely to the final asphalt mix M G to be used for installation in roads etc.
  • a cooling device 21 which is designed, for example, as water injection.
  • the energy required to evaporate the water droplets is extracted from the hot gases, which results in a very effective cooling effect.
  • These heating gases have a temperature of up to approx. 1000 ° C. when they enter the first section 13 of the drum device 2 this is necessary to burn the pollutants (CH x , CO and finest bitumen particles). These pollutants are contained in the exhaust gas of the first drum device 1.
  • the burner 24 in the second section 14 of the drum device 2 must therefore develop much hotter hot gases, which are required for the pollutant combustion, than would be necessary solely for the preparation of the new material.
  • the above-described design of the second drum device 2 within the overall asphalt preparation plant ensures that fresh asphalt mix M G can be produced, whereby on the one hand a not inconsiderable proportion of old asphalt from broken roads etc. can be used, and on the other hand that at Treatment of the old asphalt contaminants that are inevitably formed can be removed from the total exhaust gases of the two drum devices by the afterburning, so that the cleaned total exhaust gases, after they have passed through filter systems etc., can be easily discharged into the free atmosphere.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Machines (AREA)
  • Working-Up Tar And Pitch (AREA)
  • Road Paving Structures (AREA)
  • Processing Of Solid Wastes (AREA)
EP90106604A 1989-04-07 1990-04-06 Procédé et dispositif de préparation sans danger pour l'environnement d'une composition asphaltique avec asphalte récupéré usé Expired - Lifetime EP0391427B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90106604T ATE85820T1 (de) 1989-04-07 1990-04-06 Verfahren und vorrichtung zur umweltschonenden aufbereitung von asphaltmischgut unter wiederverwendung aufgebrochenen alt-asphaltes.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3911425 1989-04-07
DE3911425A DE3911425A1 (de) 1989-04-07 1989-04-07 Verfahren und vorrichtung zur umweltschonenden aufbereitung von asphaltmischgut unter wiederverwendung aufgebrochenen alt-asphaltes

Publications (3)

Publication Number Publication Date
EP0391427A2 true EP0391427A2 (fr) 1990-10-10
EP0391427A3 EP0391427A3 (en) 1990-12-12
EP0391427B1 EP0391427B1 (fr) 1993-02-17

Family

ID=6378160

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90106604A Expired - Lifetime EP0391427B1 (fr) 1989-04-07 1990-04-06 Procédé et dispositif de préparation sans danger pour l'environnement d'une composition asphaltique avec asphalte récupéré usé

Country Status (4)

Country Link
EP (1) EP0391427B1 (fr)
AT (1) ATE85820T1 (fr)
DD (1) DD297437A5 (fr)
DE (2) DE3911425A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0499664A1 (fr) * 1991-02-20 1992-08-26 WIBAU Maschinen GmbH & Co. KG Procédé pour le traitement par voie chimico-physique de gaz d'échappement d'installations de mélange d'asphalte
EP0550834A1 (fr) * 1991-12-12 1993-07-14 WIBAU Maschinen GmbH & Co. KG Procédé pour la production d'un mélange asphaltique
CN109621570A (zh) * 2019-01-24 2019-04-16 福建铁拓机械有限公司 一种沥青混合料热再生尾气处理装置及方法

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2132426C1 (ru) * 1997-10-07 1999-06-27 Муниципальное предприятие "РЕМСТРОЙБЛАГОУСТРОЙСТВО" Установка для приготовления асфальтобетона
DE102008034247B3 (de) * 2008-07-23 2009-12-17 Benninghoven GmbH & Co. KG Mülheim Verfahren zur Herstellung von Asphalt
DE102014225849B4 (de) 2014-12-15 2017-02-16 Konrad Scholz Kantenbeschichtung von Möbelplatten

Family Cites Families (10)

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Publication number Priority date Publication date Assignee Title
GB1400721A (en) * 1971-04-15 1975-07-23 Redland Roadstone Ltd Method of and apparatus for production of coated roadstone
US4153471A (en) * 1976-12-27 1979-05-08 Mendenhall Robert Lamar Process for treating exhaust gaseous mixtures from directly exposing asphalt-aggregate compositions to hot gases
DE2840884C3 (de) * 1978-09-20 1981-05-14 Wibau Industrie und Verwaltung GmbH, 6466 Gründau Verfahren zur staubarmen Trocknung von bituminösem Mischgut
US4332478A (en) * 1979-05-16 1982-06-01 Barber-Greene Company Method and apparatus for reducing smoke emissions in an asphalt drum mixer
US4481039A (en) * 1981-08-17 1984-11-06 Mendenhall Robert Lamar Method for recycling asphaltic concrete
DE3441382A1 (de) * 1984-11-13 1986-05-22 Deutsche Asphalt Gmbh, 6000 Frankfurt Verfahren und vorrichtung zum aufbereiten von asphalt
US4638747A (en) * 1985-04-01 1987-01-27 Astec Industries, Inc. Coal-fired asphalt plant
DE3538825A1 (de) * 1985-10-31 1987-05-07 Deutsche Asphalt Gmbh Vorrichtung zur einleitung gasfoermiger medien in brennerbeheizte trockentrommeln bzw. trommelmischer von asphaltaufbereitungsanlagen
DE3624735C2 (de) * 1986-07-22 1995-05-04 Wibau Gmbh Verfahren zur Einleitung eines Brennerabgases aus einer ersten Trockentrommel als Tertiärluft in den Brenner einer zweiten Trommel, sowie eine Vorrichtung zur Ausübung des Verfahrens
DE3628106A1 (de) * 1986-08-19 1988-02-25 Bagela Baumaschinen Gmbh & Co Umlauffaehige mischtrommel fuer asphaltaufbereiter

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0499664A1 (fr) * 1991-02-20 1992-08-26 WIBAU Maschinen GmbH & Co. KG Procédé pour le traitement par voie chimico-physique de gaz d'échappement d'installations de mélange d'asphalte
EP0550834A1 (fr) * 1991-12-12 1993-07-14 WIBAU Maschinen GmbH & Co. KG Procédé pour la production d'un mélange asphaltique
CN109621570A (zh) * 2019-01-24 2019-04-16 福建铁拓机械有限公司 一种沥青混合料热再生尾气处理装置及方法

Also Published As

Publication number Publication date
EP0391427B1 (fr) 1993-02-17
ATE85820T1 (de) 1993-03-15
EP0391427A3 (en) 1990-12-12
DE3911425A1 (de) 1990-10-11
DE59000892D1 (de) 1993-03-25
DD297437A5 (de) 1992-01-09

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