(19)
(11) EP 0 024 755 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
23.09.1981 Bulletin 1981/38

(43) Date of publication A2:
11.03.1981 Bulletin 1981/10

(21) Application number: 80200727

(22) Date of filing: 30.07.1980
(84) Designated Contracting States:
AT BE CH DE FR GB IT LI LU NL SE

(30) Priority: 27.08.1979 NL 7906433

(71) Applicant: Renofalt V.O.F.
 ()

(72) Inventors:
  • Eshuis, Harm Dinand
     ()
  • Mourik, Cornelis
     ()
  • van Veldhoven, Cornelis Martinus Alouisius
     ()
  • Sipkema, Jan Sjouke, Ir.
     ()
  • Geluk, Egbert
     ()

   


(54) Method and device for heating asphalt-containing materials


(57) A method of heating asphalt-containing materials in a device with the aid of combustion gases or heated air respectively, whereby the asphalt-containing materials are indirectly heated with the aid of combustion gases, the combustion gases being passed in the same direction through the device as the asphalt-containing materials, whilst the asphalt-containing materials are simultaneously brought into direct contact with combustion gases which have cooled in the meantime as a result of the indirect heating to below about 450°C and which are passed also in the same direction as the asphalt-containing materials through the device.






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