EP 0507247 A3 19921216 - PROCESS FOR MAKING ASPHALT MIXTURES WITH A DRYING AND HEATING DRUM PLACED ABOVE THE MIXING UNIT AND SUPPLEMENTARY PROCESS FOR THE COOLING AND WASHING OF EXHAUST GASES
Title (en)
PROCESS FOR MAKING ASPHALT MIXTURES WITH A DRYING AND HEATING DRUM PLACED ABOVE THE MIXING UNIT AND SUPPLEMENTARY PROCESS FOR THE COOLING AND WASHING OF EXHAUST GASES
Publication
Application
Priority
DE 4110981 A 19910405
Abstract (en)
[origin: EP0507247A2] The invention relates to a process for making asphalt mixtures with a drying and heating drum (12) placed above the mixing tower and is characterised in that the throughput of pure mineral materials is 100% of the drum capacity or, optionally, depending on the proportion of mineral materials, falling from 100%, contains as much granulated asphalt as desired. The supplement to the process for making asphalt mixtures with a drying and heating drum (12) placed above the mixing tower for the part object of cooling and washing the exit gas provides that the cooling by the heating water for the mineral materials is effected in a closed system by a gas heat exchanger (14) and a spray cooler (14) for further cooling and/or condensation and washing-out of the exit gases is arranged in the form of a spray tower downstream of this exchanger, and the water heated here to 80-90 DEG C is added via a water/water heat exchanger to the cooled heating water coming back from the mineral silos (21) and is then passed through the gas/water heat exchanger. <IMAGE>
IPC 1-7
IPC 8 full level
E01C 19/10 (2006.01)
CPC (source: EP)
E01C 19/1036 (2013.01); E01C 19/1072 (2013.01)
Citation (search report)
- [Y] FR 1568100 A 19690523
- [Y] US 4300837 A 19811117 - MALBRUNOT PIERRE
- [A] DE 3333673 A1 19850404 - TEERBAU GMBH STRASSENBAU [DE]
- [A] DE 3530248 A1 19870326 - BAYERISCHE ASPHALT MISCHWERKE [DE]
- [A] DE 2423856 A1 19751120 - IMA INGENIEURE FUER MINERAL AU
- [A] EP 0352648 A1 19900131 - PEDERSHAAB MASKINFABRIK AS [DK]
- [A] BITUMEN, Band 50, Nr. 1, 1. Quartal 1988, Seiten 23-29, Hamburg, DE; J. LEHDRICH et al.: "Gussasphalt zur Deckenerneuerung - Versuchsstrecke mit Fräsasphalt auf der B 464"
Designated contracting state (EPC)
AT BE CH DE DK FR IT LI NL SE
DOCDB simple family (publication)
EP 0507247 A2 19921007; EP 0507247 A3 19921216; DE 4110981 A1 19921008
DOCDB simple family (application)
EP 92105502 A 19920331; DE 4110981 A 19910405