EP 0569420 B1 19961016 - A METHOD AND AN EQUIPMENT FOR CLASSIFYING A GAS-SOLIDS FLOW COMING FROM A COUNTERJET PULVERIZER
Title (en)
A METHOD AND AN EQUIPMENT FOR CLASSIFYING A GAS-SOLIDS FLOW COMING FROM A COUNTERJET PULVERIZER
Title (de)
VERFAHREN UND VORRICHTUNG ZUR KLASSIERUNG EINER STRÖMUNG EINER GAS-FESTKÖRPER ZUSAMMENSETZUNG AUS EINER GEGENSTRAHLMÜHLE
Title (fr)
PROCEDE ET DISPOSITIF DE TRI D'UN FLUX COMPOSE DE GAZ ET DE SOLIDES PROVENANT D'UN PULVERISATEUR A CONTRE-JET
Publication
Application
Priority
- FI 910418 A 19910129
- FI 9200023 W 19920129
Abstract (en)
[origin: WO9212795A1] The invention relates to a method and an equipment for classifying a gas-solids flow coming from a counterjet pulverizer (5), in which the gas-solids flow accelerated by an additional gas flow is led to a first, mainly a centrifugal-force based classification phase (7), from which a coarse fraction is returned to the pulverization and a fine fraction is led, supported by the gas flow, to a second classification phase. The invention is characterized in that the coarse fraction produced in the second classification phase (12) is mixed in a vigorous additional gas flow and the additional gas-solids mixture produced is led to the feed of the first classification phase (7) such that large speed differences occur therein, and the fine fraction is led, supported by the gas flow, to the next treatment phase.
IPC 1-7
IPC 8 full level
B02C 19/06 (2006.01); B02C 21/00 (2006.01); B02C 23/22 (2006.01); B02C 23/32 (2006.01); B07B 9/00 (2006.01)
CPC (source: EP)
B02C 19/06 (2013.01); B02C 23/22 (2013.01); B02C 23/32 (2013.01)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IT LI NL SE
DOCDB simple family (publication)
WO 9212795 A1 19920806; AT E144165 T1 19961115; AU 1183392 A 19920827; DE 69214629 D1 19961121; EP 0569420 A1 19931118; EP 0569420 B1 19961016; FI 910418 A0 19910129; FI 910418 A 19920730; JP H06507111 A 19940811
DOCDB simple family (application)
FI 9200023 W 19920129; AT 92903563 T 19920129; AU 1183392 A 19920129; DE 69214629 T 19920129; EP 92903563 A 19920129; FI 910418 A 19910129; JP 50353492 A 19920129