EP 1328384 A1 20030723 - EXTRUDER FOR VEGETAL PARTICLES MIXED WITH A BINDING AGENT

Title (en)

EXTRUDER FOR VEGETAL PARTICLES MIXED WITH A BINDING AGENT

Title (de)

STRANGPRESSE FÜR MIT BINDEMITTEL VERMENGTE PFLANZLICHE KLEINTEILE

Title (fr)

EXTRUDEUSE POUR DES PARTICULES VEGETALES MELANGEES AVEC UN LIANT

Publication

EP 1328384 A1 20030723 (DE)

Application

EP 01958060 A 20010808

Priority

DE 20018347 U 20001026
EP 0109150 W 20010808

Abstract (en)

[origin: WO0234489A1] The invention seeks to significantly reduce investment in expensive drying systems for vegetal particles, especially wood, during pre- preparation of the extruder when such vegetal particles exhibiting a high degree of moisture, for example, 8-14 % atro are intended to be pressed. In order to solve the above-mentioned problem, a conventional extruder is used, wherein the mixture of particles is pushed through a receptacle (4) and a hardening channel (6) by means of an extruder piston. The invention is characterized in that the walls (8) of the first section of the hardening channel (6) downstream from the receptacle (4) are arranged in such a way that they can yield (8,9) and thereby reduce friction as the extruder piston (3) advances. This prevents the strand of extruded material from becoming blocked in the pre-heating section of the hardening channel.

IPC 1-7

B27N 3/28; B30B 11/26

IPC 8 full level

B27N 3/28 (2006.01); B30B 11/26 (2006.01)

CPC (source: EP)

B27N 3/28 (2013.01); B30B 11/26 (2013.01)

Citation (third parties)

Third party :

DE 2933405 A1 19800306 - EGYT GYOGYSZERVEGYESZETI GYAR
DE 2932406 A1 19810212 - HEGGENSTALLER ANTON
DE 3222113 A1 19831215 - HEGGENSTALLER ANTON
WO 9948675 A1 19990930 - SCHEDLBAUER KARL [DE]
DE 19826408 A1 19991223 - SCHEDLBAUER KARL [DE]
DE 19838187 A1 20000831 - SCHEDLBAUER KARL [DE]
DE 19830542 A1 19990930 - SCHEDLBAUER KARL [DE]
DE 4117659 C2 19960502 - SCHEDLBAUER KARL [DE]
DE 2016771 A1 19711021
DE 2535989 A1 19770224 - HEGGENSTALLER ANTON

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

DOCDB simple family (publication)

WO 0234489 A1 20020502; AT E326321 T1 20060615; CZ 298496 B6 20071017; DE 20018347 U1 20011031; DE 50109829 D1 20060622; DK 1328384 T3 20060918; EE 200300176 A 20030616; EP 1328384 A1 20030723; EP 1328384 B1 20060517; ES 2262670 T3 20061201; PL 200466 B1 20090130; PL 360784 A1 20040920; PT 1328384 E 20061031; SK 286200 B6 20080506; SK 4912003 A3 20030911

DOCDB simple family (application)

EP 0109150 W 20010808; AT 01958060 T 20010808; CZ 20031147 A 20010808; DE 20018347 U 20001026; DE 50109829 T 20010808; DK 01958060 T 20010808; EE P200300176 A 20010808; EP 01958060 A 20010808; ES 01958060 T 20010808; PL 36078401 A 20010808; PT 01958060 T 20010808; SK 4912003 A 20010808