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EP0033911A1 - Dispositif pour l'échauffement capacitif par haute fréquence d'un matériau en morceaux contenant du goudron ou du bitume - Google Patents

Dispositif pour l'échauffement capacitif par haute fréquence d'un matériau en morceaux contenant du goudron ou du bitume Download PDF

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Publication number
EP0033911A1
EP0033911A1 EP81100659A EP81100659A EP0033911A1 EP 0033911 A1 EP0033911 A1 EP 0033911A1 EP 81100659 A EP81100659 A EP 81100659A EP 81100659 A EP81100659 A EP 81100659A EP 0033911 A1 EP0033911 A1 EP 0033911A1
Authority
EP
European Patent Office
Prior art keywords
capacitive
tar
heated
frequency heating
final temperature
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
EP81100659A
Other languages
German (de)
English (en)
Other versions
EP0033911B1 (fr
Inventor
Hans-Christian Dipl.-Ing. Grassmann
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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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 Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of EP0033911A1 publication Critical patent/EP0033911A1/fr
Application granted granted Critical
Publication of EP0033911B1 publication Critical patent/EP0033911B1/fr
Expired 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

Definitions

  • the invention relates to a device for the capacitive high-frequency heating of asphalt or tar-containing chunk material, in particular of material originating from reusable road surfaces, to a final temperature of approximately 170 to 200 ° C.
  • the object of the present invention is to design a capacitive high-frequency heating device in such a way that the material can be easily and uniformly heated to the final temperature.
  • a first capacitive continuous furnace in which the chunk material transported between the electrodes can be heated to plastic deformability at approx. 80 to 100 ° C.
  • a subsequent mechanical leveling device in which the transported material can be deformed to approximately the same layer thickness
  • a subsequent capacitive continuous furnace in which the material can be heated to the final temperature at an approximately uniform distance from the electrodes.
  • continuous ovens including electrical devices and also the leveling device are advantageously installed in transportable containers.
  • capacitive continuous furnaces have long been known for the electrical heating of goods of all kinds.
  • the present heating device basically consists of two capacitive high-frequency continuous furnaces 1 and 3 and an intermediate leveling device 2.
  • the continuous furnace 1 consists, in a manner known per se, of a metallic, grounded conveyor belt 13 which serves as the lower electrode and an upper electrode 12 which is height-adjustable in the direction of the double arrow 15 and which is connected to the high-frequency generator 11, e.g. operates at a frequency of 25 MHz.
  • the furnace 3 is constructed in the same way and also consists of a conveyor belt 33, which serves as the lower electrode, an upper electrode 32, which is adjustable in the direction of the double arrow 35, and the high-frequency generator 31 Furnaces can be attached or combined separately into an assembly.
  • the leveling device 2 consists essentially of a hopper 22 and rollers 21, in which the broken blocks 4 are pressed to a uniform layer thickness h. Instead of rollers, scrapers or other pressing devices can also be used.
  • the heating process now takes place as follows:
  • the tar-containing chunks 4 of different sizes delivered with trucks, for example, pass via a slide 5 in the direction of arrow 51 onto the conveyor belt 13 running in the direction of arrow 14.
  • the individual chunks 4 still have different ones Distances a to the upper high-frequency electrode 12 are thus heated differently in a certain way.
  • the performance of the furnace 1 is now such that after passing through this furnace the chunks 4 leaving this furnace have a temperature of approximately 80 to 100 °, that is to say they are plastically deformable. Because of this plastic deformability, the chunks are relatively simple can be pressed between the rolls 21 to a uniform layer height h.
  • the chunks leaving the rollers 21 with a somewhat constant layer height h then pass a stripper 23 onto the conveyor belt 33 and are transported here in the direction of the arrow 34 on the belt 33 lying next to one another as gently as possible through the furnace 3.
  • the individual chunks 4 are now approximately the same distance b from the upper electrode 32, so that approximately uniform heating of all the pieces to the required final temperature of 170-200 ° C. is achieved.
  • the furnace 3 leaving Brok - ken 4 then pass through a chute 62 into a container 6, for example in a truck. From here, the material - as indicated by arrow 61 - is brought to the road construction site for reuse.
  • the above-described two-stage heating process in the high-frequency field enables a relatively quick and uniform heating of the demolition material and thus a continuous supply to the new construction sites.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Machines (AREA)
  • Road Repair (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Processing Of Solid Wastes (AREA)
EP81100659A 1980-02-12 1981-01-29 Dispositif pour l'échauffement capacitif par haute fréquence d'un matériau en morceaux contenant du goudron ou du bitume Expired EP0033911B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19803005183 DE3005183A1 (de) 1980-02-12 1980-02-12 Einrichtung zur kapazitiven hochfrequenzerwaermung von asphalt- oder teerhaltigem brockenmaterial
DE3005183 1980-02-12

Publications (2)

Publication Number Publication Date
EP0033911A1 true EP0033911A1 (fr) 1981-08-19
EP0033911B1 EP0033911B1 (fr) 1983-12-14

Family

ID=6094406

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81100659A Expired EP0033911B1 (fr) 1980-02-12 1981-01-29 Dispositif pour l'échauffement capacitif par haute fréquence d'un matériau en morceaux contenant du goudron ou du bitume

Country Status (2)

Country Link
EP (1) EP0033911B1 (fr)
DE (2) DE3005183A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4200760A1 (de) * 1991-01-18 1992-07-23 Alex Sin Mfg Strassenasphaltiermaschine mit drehbarem trommelmischer und in zonen unterteilter heizkammer zur herstellung von asphaltaggregaten fuer strassendecken
WO1997016600A1 (fr) * 1995-11-02 1997-05-09 Amomatic Oy Procede et appareil de chauffage de matiere rocheuse
FR2755450A1 (fr) * 1996-11-05 1998-05-07 Deroubaix Marie Louise Procede et dispositif pour le recyclage in situ de revetement de chaussee ou analogue
FR2866037A1 (fr) * 2004-02-09 2005-08-12 Emile Lopez Procede et dispositif de mise en temperature de granulats et/ou d'enrobes routiers, notamment d'enrobes usages a recycler

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI92494C (fi) * 1990-07-23 1994-11-25 Seppo Aho Menetelmä asfalttimassan valmistamiseksi

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE819858C (de) * 1948-10-02 1951-11-05 Telefunken Gmbh Verfahren zur Durchfuehrung von Bauarbeiten an Strassendecken

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1117339A (fr) * 1977-01-03 1982-02-02 Morris R. Jeppson Refection aux micro-ondes des revetements de voies carrossables

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE819858C (de) * 1948-10-02 1951-11-05 Telefunken Gmbh Verfahren zur Durchfuehrung von Bauarbeiten an Strassendecken

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4200760A1 (de) * 1991-01-18 1992-07-23 Alex Sin Mfg Strassenasphaltiermaschine mit drehbarem trommelmischer und in zonen unterteilter heizkammer zur herstellung von asphaltaggregaten fuer strassendecken
WO1997016600A1 (fr) * 1995-11-02 1997-05-09 Amomatic Oy Procede et appareil de chauffage de matiere rocheuse
FR2755450A1 (fr) * 1996-11-05 1998-05-07 Deroubaix Marie Louise Procede et dispositif pour le recyclage in situ de revetement de chaussee ou analogue
FR2866037A1 (fr) * 2004-02-09 2005-08-12 Emile Lopez Procede et dispositif de mise en temperature de granulats et/ou d'enrobes routiers, notamment d'enrobes usages a recycler
WO2005075742A1 (fr) * 2004-02-09 2005-08-18 Emile Lopez Procede et dispositif de mise en temperature de granulats et/ou d'enrobes routiers, notamment d'enrobes usages a recycler
US9045867B2 (en) 2004-02-09 2015-06-02 Fenixfalt Method and device for heating worn road coating materials

Also Published As

Publication number Publication date
DE3161607D1 (en) 1984-01-19
DE3005183A1 (de) 1981-08-20
EP0033911B1 (fr) 1983-12-14

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