EP 3573745 A1 20191204 - METHOD AND INSTALLATION FOR HEAT RECOVERY IN FLUIDISED BED GRANULATION
Title (en)
METHOD AND INSTALLATION FOR HEAT RECOVERY IN FLUIDISED BED GRANULATION
Title (de)
VERFAHREN UND ANLAGE ZUR WÄRMERÜCKGEWINNUNG BEI DER FLIESSBETTGRANULATION
Title (fr)
PROCÉDÉ ET SYSTÈME DE RÉCUPÉRATION DE CHALEUR LORS DE LA GRANULATION EN LIT FLUIDISÉ
Publication
Application
Priority
- DE 102017201182 A 20170125
- EP 2018051212 W 20180118
Abstract (en)
[origin: WO2018137995A1] The present invention relates to a method for producing fertiliser granules by fluidised bed granulation in a fluidised bed granulator (17), in which air that is used for the fluidisation in the fluidised bed is sucked in by means of a line (18) and is heated before entering the fluidised bed granulator (17), wherein hot exhaust air occurs in the process, emanating from the fluidised bed granulator, and according to the invention at least a partial stream of the hot exhaust air is returned and used for the fluidisation. This creates the possibility of using the thermal energy contained in the exhaust air and reducing the heating energy necessary for heating the fresh air for the fluidisation. The returned air may be cleaned, for example by means of a cyclone separator (21), in order to separate out solid particles before the cleaned exhaust air is combined with the fresh air.
IPC 8 full level
B01J 2/16 (2006.01)
CPC (source: EP US)
B01J 2/16 (2013.01 - EP US); B01J 8/1818 (2013.01 - US); Y02P 20/129 (2015.11 - EP)
Citation (search report)
See references of WO 2018137995A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DE 102017201182 A1 20180726; CN 110198778 A 20190903; EP 3573745 A1 20191204; TW 201829056 A 20180816; US 2019366288 A1 20191205; WO 2018137995 A1 20180802
DOCDB simple family (application)
DE 102017201182 A 20170125; CN 201880008250 A 20180118; EP 18701022 A 20180118; EP 2018051212 W 20180118; TW 107101712 A 20180117; US 201816477950 A 20180118