Global Patent Index - EP 1002879 A1

EP 1002879 A1 2000-05-24 - Process and apparatus for extracting sugar from chopped sugar cane

Title (en)

Process and apparatus for extracting sugar from chopped sugar cane

Title (de)

Verfahren und Vorrichtung zum Extrahieren von Zucker aus gehäckseltem Zuckerrohr

Title (fr)

Procédé et appareil pour l'extraction du sucre de la canne à sucre tronçonnée

Publication

EP 1002879 A1 (DE)

Application

EP 98121716 A

Priority

EP 98121716 A

Abstract (en)

Sugar extraction from cane directed in upward direction so that the fluid can pass through it by gravity. The bagasse (crushed cane) is confined between two conveyor systems (7,7a and 9) insulated on the outside, waterproofed on the inside and fitted with rows of spikes on the inside of one band. This forms a path of rectangular cross-section through which the bagasse is transported from the inlet (4) to the outlet at (5) into which fluid is passed from (19). Some of the enriched liquid, under a gravity head 'h', is withdrawn at level (21) to be heated by heat-exchanger (23) to about 90 degrees C to warm the incoming bagasse. The liquid, at about 75 degrees C, is then returned for entry at (5). The final liquor is withdrawn at (25) principally and under the perforated drive roll (13) at (28). The bagasse is finally dewatered at (27) and (17) before disposal.

Abstract (de)

Die Erfindung betrifft ein Verfahren zum Extrahieren von Zucker aus gehäckseltem Zuckerrohr und eine Vorrichtung zur Durchführung des Verfahrens. Für ein verfahrens- und vorrichtungsmäßig verbessertes Extraktionssystem wird erfindungsgemäß vorgeschlagen, den Bagassestrang durch ein in einem ansteigenden Förderkanal stehendes Imbibitionsflüssigkeitsbad hindurchzuziehen, wobei der Pegelstand dieses Flüssigkeitsbades oberhalb von am Anfang des Förderkanals vorgesehenen Entnahmestellen für Anwärmsaft und Abzugssaft liegt. <IMAGE>

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

C13D 1/04

IPC 8 full level (invention and additional information)

C13B 10/04 (2011.01)

CPC (invention and additional information)

C13B 10/04 (2013.01)

Citation (search report)

Designated contracting state (EPC)

BE DE GB

EPO simple patent family

EP 1002879 A1 20000524; ZA 9904414 B 20000113

INPADOC legal status


2003-01-15 [18R] REFUSED

- Effective date: 20020822

2002-04-10 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20020226

2001-01-31 [AKX] PAYMENT OF DESIGNATION FEES

- Free text: BE DE GB

2000-05-24 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19990702

2000-05-24 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): BE DE GB

2000-05-24 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Free text: AL;LT;LV;MK;RO;SI