EP 0391427 B1 19930217 - PROCESS AND APPARATUS FOR ENVIRONMENTALLY SAFE PREPARATION OF AN ASPHALTIC MIXTURE USING RECYCLED ASPHALT
Title (en)
PROCESS AND APPARATUS FOR ENVIRONMENTALLY SAFE PREPARATION OF AN ASPHALTIC MIXTURE USING RECYCLED ASPHALT
Publication
Application
Priority
DE 3911425 A 19890407
Abstract (en)
[origin: EP0391427A2] A process and an apparatus are provided for environmentally safe preparation of an asphaltic mixture using recycled asphalt and the addition of fresh material such as gravel, chips or sand, the recycled asphalt portion M A being prepared in a first drum device 1 and the fresh material portion being prepared in a second drum device 2, and the exhaust gases, laden with harmful substances, from the first drum device 1 being passed into the burner area of the second drum device 2. Here, the second drum device 2, which is operated in counterflow, is split up into two sections 13 and 14, in which arrangement the fresh material M N is prepared in the first section 13, and the harmful substances (CH x, CO) contained in the exhaust gases from the first drum device 1 are burnt out in the second section by intensive mixing with the burner flame, and the hot gases arising here are then passed into the first section 13 of the second drum device 2 in order to prepare the fresh material M N. <IMAGE>
IPC 1-7
IPC 8 full level
E01C 19/10 (2006.01)
CPC (source: EP)
E01C 19/1004 (2013.01); E01C 19/1036 (2013.01); E01C 19/105 (2013.01); E01C 19/1063 (2013.01); E01C 2019/109 (2013.01); E01C 2019/1095 (2013.01)
Designated contracting state (EPC)
AT BE CH DE DK ES FR IT LI LU NL SE
DOCDB simple family (publication)
EP 0391427 A2 19901010; EP 0391427 A3 19901212; EP 0391427 B1 19930217; AT E85820 T1 19930315; DD 297437 A5 19920109; DE 3911425 A1 19901011; DE 59000892 D1 19930325
DOCDB simple family (application)
EP 90106604 A 19900406; AT 90106604 T 19900406; DD 33959590 A 19900409; DE 3911425 A 19890407; DE 59000892 T 19900406