EP 1156892 B1 20040317 - CONICAL SIFTER AND METHOD FOR SIFTING BULK MATERIAL WHICH CANNOT BE POURED EASILY OR AT ALL
Title (en)
CONICAL SIFTER AND METHOD FOR SIFTING BULK MATERIAL WHICH CANNOT BE POURED EASILY OR AT ALL
Title (de)
KEGELSICHTER UND VERFAHREN ZUM SICHTEN VON EINGESCHRÄNKT ODER NICHT RIESELFÄHIGEM SCHÜTTGUT
Title (fr)
SEPARATEURS CONIQUES ET PROCEDE POUR TRIER DES MATERIAUX EN VRAC A ECOULEMENT LIMITE OU NON COULANTS
Publication
Application
Priority
- DE 19957993 A 19991202
- EP 0011496 W 20001118
Abstract (en)
[origin: WO0139899A1] The invention relates to a conical sifter for sifting bulk material, which cannot be poured easily or at all and which comprises a lightweight material fraction and a heavy material fraction, and to a method for carrying out the sifting. The aim of the invention is to prevent blockages inside the inlet tube and deposits on the surfaces of the cone. To these ends, at least one filling air inlet (28) is connected to the filling tube (4) for admitting a downwardly directed flow of air inside at least one part of the filling tube (4). In addition, the invention provides that at least one displacing cone air inlet (46) is connected to the interior (44) of the displacing cone (40) and that an annular gap (48) is provided between the cylindrical spout (42) and the double cone (6). The invention also relates to a method for sifting bulk material, which cannot be poured easily or at all and which comprises a lightweight material fraction and a heavy material fraction, during which the aforementioned conical sifter is used.
IPC 1-7
IPC 8 full level
B07B 4/02 (2006.01)
CPC (source: EP)
B07B 4/02 (2013.01)
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 0139899 A1 20010607; AT E261783 T1 20040415; AU 5437401 A 20010612; DE 19957993 A1 20010613; DE 19957993 B4 20040722; DE 50005686 D1 20040422; DK 1156892 T3 20040719; EP 1156892 A1 20011128; EP 1156892 B1 20040317; ES 2221871 T3 20050116; JP 2003515447 A 20030507; TW 473402 B 20020121
DOCDB simple family (application)
EP 0011496 W 20001118; AT 00993231 T 20001118; AU 5437401 A 20001118; DE 19957993 A 19991202; DE 50005686 T 20001118; DK 00993231 T 20001118; EP 00993231 A 20001118; ES 00993231 T 20001118; JP 2001541624 A 20001118; TW 89125625 A 20001201