EP 0437990 B1 19930317 - APPARATUS FOR PREPARING BITUMINOUS MIXTURES HAVING A DIRECT-CURRENT AND A COUNTER-CURRENT DRUM AND CORRESPONDING METHOD
Title (en)
APPARATUS FOR PREPARING BITUMINOUS MIXTURES HAVING A DIRECT-CURRENT AND A COUNTER-CURRENT DRUM AND CORRESPONDING METHOD
Publication
Application
Priority
FR 9000569 A 19900118
Abstract (en)
[origin: US5178456A] The device comprises a drum drier with parallel streams (1) fed with recycled materials and a drum drier and countercurrent mixer (2) fed with virgin aggregates at its entry end (2a). The exit end (1b) of the drum with parallel streams (1) through which the dried and preheated recycled materials leave is connected to a ring (26) for introducing materials through the side wall of the countercurrent drum (2) through a chute for transferring the recycled materials. The ring (26) for introducing the recycled materials opens into a recycling and mixing zone (23) situated in the countercurrent drum (2) around the body of the burner (10), between the flame zone (22) and the mixing zone (24). The dried and heated recycled materials (8) are transferred continuously into the recycling zone (23) of the countercurrent drum (2).
IPC 1-7
IPC 8 full level
E01C 19/10 (2006.01)
CPC (source: EP US)
E01C 19/1036 (2013.01 - EP US); E01C 2019/109 (2013.01 - EP US); E01C 2019/1095 (2013.01 - EP US)
Designated contracting state (EPC)
BE CH DE DK ES FR GB IT LI NL
DOCDB simple family (publication)
EP 0437990 A1 19910724; EP 0437990 B1 19930317; DE 69001126 D1 19930422; DE 69001126 T2 19930708; FR 2657097 A1 19910719; FR 2657097 B1 19920515; US 5178456 A 19930112
DOCDB simple family (application)
EP 90403447 A 19901204; DE 69001126 T 19901204; FR 9000569 A 19900118; US 62086290 A 19901204