Global Patent Index - EP 0917921 B1

EP 0917921 B1 20020904 - Method and apparatus for reclaiming core sand or mould sand

Title (en)

Method and apparatus for reclaiming core sand or mould sand

Title (de)

Verfahren und Vorrichtung zur Rückgewinnung von Kern- oder Formsand

Title (fr)

Procédé et appareil pour récupérer du sable à noyaux et de moulage

Publication

EP 0917921 B1 20020904 (DE)

Application

EP 98121747 A 19981116

Priority

DE 29720478 U 19971119

Abstract (en)

[origin: EP0917921A1] The installation for recovery of foundry sand from moulds or mould parts includes a recovery chamber (3) and a cooling chamber (4). A hot fluid bed (32) consisting essentially of heated foundry sand (16) suspended by gas flows is generated in the recovery chamber which is supplied with sand moulds and mould parts (37). The cooling chamber houses an analogous fluid bed (33) consisting of cooled foundry sand (16') transferred from the recovery chamber by a transfer device (34).

IPC 1-7

B22C 5/08; B22C 5/18; F23G 5/30

IPC 8 full level

B22C 5/08 (2006.01); B22C 5/18 (2006.01); F23G 5/30 (2006.01)

CPC (source: EP)

B22C 5/08 (2013.01)

Designated contracting state (EPC)

AT BE CH DE ES FR GB IT LI NL PT SE

DOCDB simple family (publication)

EP 0917921 A1 19990526; EP 0917921 B1 20020904; AT E223266 T1 20020915; DE 29720478 U1 19980102; DE 59805394 D1 20021010

DOCDB simple family (application)

EP 98121747 A 19981116; AT 98121747 T 19981116; DE 29720478 U 19971119; DE 59805394 T 19981116