Global Patent Index - EP 0998341 A1

EP 0998341 A1 2000-05-10 - METHOD AND DEVICE FOR SEPARATING MATERIALS AND GUIDING DEVICE THEREFOR

Title (en)

METHOD AND DEVICE FOR SEPARATING MATERIALS AND GUIDING DEVICE THEREFOR

Title (de)

VERFAHREN UND VORRICHTUNG ZUM TRENNEN VON STOFFEN UND LEITEINRICHTUNG HIERFÜR

Title (fr)

PROCEDE ET DISPOSITIF POUR SEPARER DES MATIERES, ET DISPOSITIF DE GUIDAGE UTILISE A CET EFFET

Publication

EP 0998341 A1 (DE)

Application

EP 98943725 A

Priority

  • DE 19729802 A
  • EP 9804201 W

Abstract (en)

[origin: DE19729802A1] The invention provides for a method and device for separating solid mineral grain materials, such as sand, from organic materials, suspended mateterials, easily or hardly soluble materials contained in a liquid-solid mix, for instance a mix from waste water purification plants. According to said method, the liquid-solid mix is tangentially introduced into a vessel (1), at an inlet port (13). Said liquid-solid mix flows towards an outlet port (16), in said vessel (1), at a sufficiently low rate so that when flowing said heavy components from liquid-solid mix, that is essentially solid mineral grain materials, settle forming a sediment bed (22). Said components forming sediment bed are removed and optionally dehydrated. The method according to the invention is characterized in that said liquid-solid mix is forcibly conveyed, in order to flow in a spiral fashion, between the inlet port (13) and the outlet port (16), at least through a partial deep area.

IPC 1-7 (main, further and additional classification)

B01D 21/26; E03F 5/14

IPC 8 full level (invention and additional information)

B01D 21/00 (2006.01); B03B 5/00 (2006.01); B03B 5/32 (2006.01); B03B 5/52 (2006.01); B03B 11/00 (2006.01); B01D 21/26 (2006.01)

CPC (invention and additional information)

B03B 11/00 (2013.01); B01D 21/0054 (2013.01); B01D 21/2411 (2013.01); B01D 21/2427 (2013.01); B01D 21/2444 (2013.01); B01D 21/2461 (2013.01); B01D 21/267 (2013.01); B03B 5/00 (2013.01); B03B 5/32 (2013.01); B03B 5/52 (2013.01); B01D 2221/04 (2013.01)

Citation (search report)

See references of WO 9902237A1

Designated contracting state (EPC)

AT BE CH DE DK FR GB IE LI LU NL SE

EPO simple patent family

DE 19729802 A1 19990114; DE 19729802 C2 20000608; CA 2295692 A1 19990121; EP 0998341 A1 20000510; WO 9902237 A1 19990121

INPADOC legal status


2002-07-17 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20020110

2001-08-16 [17Q] FIRST EXAMINATION REPORT

- Ref Legal Event Code: 17Q

- Effective date: 20010629

2000-05-10 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20000113

2000-05-10 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): AT BE CH DE DK FR GB IE LI LU NL SE