EP 0952912 A1 19991103 - DEVICE FOR CLEANING VISCOUS MATERIAL
Title (en)
DEVICE FOR CLEANING VISCOUS MATERIAL
Title (de)
VORRICHTUNG ZUM REINIGEN VISKOSEN MATERIALS
Title (fr)
DISPOSITIF POUR NETTOYER DES MATIERES VISQUEUSES
Publication
Application
Priority
- DE 19701002 A 19970114
- DE 19704621 A 19970207
- EP 9800170 W 19980113
Abstract (en)
[origin: WO9831527A1] The invention relates to a cleaning device for removing solid impurities from viscous material, in particular molten plastics material, comprising, inside a housing (1), a filter band (5) for separating out solid impurities which can be moved in its longitudinal direction. The filter band (5) is wrapped around a curved supporting area (7) of a fixed supporting member (3) at an angle of wrap of preferably approximately 180 DEG , and is guided on both sides of the curved supporting area (7) in level supporting areas (15, 17) which lie tangentially and flush against the curved supporting area (7). To reduce the kinetic resistance of the filter band (5), the curved supporting area (7) and at least partly the level supporting areas (15, 17) are provided with grooves (25) extending in the direction of transport of the filter band (5). The plastics material to be cleaned is supplied via a feeding chamber (23) surrounding the supporting area, and, after it has been cleaned, is removed via connecting channels (27, 35) extending from the grooves (25). On the outlet side of the cleaning device the filter band (5) passes through a cleaning station (67). In this way the filter band can be reused. The proposed cleaning device is compact and allows for relatively large effective filtering surfaces.
IPC 1-7
IPC 8 full level
B01D 29/09 (2006.01); B29C 47/68 (2006.01); B29C 48/692 (2019.01); B29C 47/70 (2006.01); B29C 48/08 (2019.01)
CPC (source: EP US)
B01D 29/09 (2013.01 - EP US); B01D 29/096 (2013.01 - EP US); B01D 29/6453 (2013.01 - EP US); B01D 29/6484 (2013.01 - EP US); B01D 29/684 (2013.01 - EP US); B01D 29/84 (2013.01 - EP US); B01D 29/843 (2013.01 - EP US); B29C 48/692 (2019.01 - EP US); B29C 48/08 (2019.01 - EP US)
Citation (search report)
See references of WO 9831527A1
Designated contracting state (EPC)
AT DE ES FR GB IT SE
DOCDB simple family (publication)
WO 9831527 A1 19980723; DE 19704621 A1 19980924; EP 0952912 A1 19991103; US 6375013 B1 20020423
DOCDB simple family (application)
EP 9800170 W 19980113; DE 19704621 A 19970207; EP 98907942 A 19980113; US 34112899 A 19990920