EP 0293409 B1 19891011 - SCREW PRESS
Title (en)
SCREW PRESS
Publication
Application
Priority
DE 3641248 A 19861203
Abstract (en)
[origin: WO8804232A1] A screw press (1) has a housing with a circular cylindrical upper part (3) and a lower part (4). In an upper bearing (16) and in a lower bearing (20) of the housing (2) a press-screw (18) is rotatively mounted and can be rotated by a driving unit (21) via a driving pipe (58). A screw body (29) of the press-screw (18) has outer spiral fins (69) and compacting paddles (25) further up that all extend next to a screening casc (23) of the upper part (3). The screening case (23) is surrounded at a certain distance by an injection case (22) and is provided, from the compacting paddles (25) down, with holes for the expressed liquid. The screw-body (29) similarly has passages (47) for the expressed liquid but only from the compacting paddles (25) down. A screw-like front wall (38) is welded above the compacting paddles (25) between an annular wall (34) and the screening case (23), which has no holes in that area. Wet pulp reaches tangentially the lower side of the front wall (38) through a filling hole (41) in the upper part (3).
IPC 1-7
IPC 8 full level
IPC 8 main group level
B30B (2006.01)
CPC (source: EP US)
B30B 9/128 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
WO 8804232 A1 19880616; AT E47089 T1 19891015; BG 48209 A3 19901214; DD 264646 A5 19890208; DE 3641248 A1 19880728; DE 3760717 D1 19891116; EP 0293409 A1 19881207; EP 0293409 B1 19891011; ES 2005714 A6 19890316; NO 165666 B 19901210; NO 165666 C 19910320; NO 883425 D0 19880802; NO 883425 L 19880802; RO 102682 B1 19930301; SU 1831432 A3 19930730; US 4901636 A 19900220; YU 214587 A 19901031
DOCDB simple family (application)
EP 8700670 W 19871104; AT 87907320 T 19871104; BG 8533188 A 19880830; DD 30965887 A 19871130; DE 3641248 A 19861203; DE 3760717 T 19871104; EP 87907320 A 19871104; ES 8703444 A 19871202; NO 883425 A 19880802; RO 13475587 A 19871104; SU 4356207 A 19880802; US 25227188 A 19880725; YU 214587 A 19871126