EP 4237778 A1 20230906 - FURNACE AND METHOD FOR OPERATING A FURNACE
Title (en)
FURNACE AND METHOD FOR OPERATING A FURNACE
Title (de)
BRENNOFEN UND VERFAHREN ZUM BETRIEB EINES BRENNOFENS
Title (fr)
FOUR ET PROCÉDÉ POUR FAIRE FONCTIONNER UN FOUR
Publication
Application
Priority
- DE 102020128370 A 20201028
- EP 2021069571 W 20210714
Abstract (en)
[origin: WO2022089796A1] The invention relates to a method and to a control device for operating a furnace (10), in particular an anode furnace, wherein: the furnace is constituted of a plurality of heating ducts (12) and furnace chambers (13); the furnace chambers are intended for receiving carbon-containing products, in particular anodes, and the heating ducts are intended for controlling the temperature of the furnace chambers; the furnace comprises at least one furnace unit (11); the furnace unit comprises a heating-up zone (18), a firing zone (19) and a cooling zone (20), which for their part are formed from at least one section (37, 38, 39, 40, 41, 42) comprising at least one furnace chamber; an extraction ramp (15) is arranged in a section of the heating-up zone and a burner ramp (16) is arranged in a section of the firing zone; process air is heated in the heating ducts of the firing zone by means of the burner ramp and exhaust gas from the heating ducts of the heating zone is extracted by means of the extraction ramp; operation of the ramps is controlled by means of a control device of the furnace unit; for each of at least two sections an enthalpy stream is determined by means of the control device; a difference between the respective enthalpy streams is determined as a characteristic value; the characteristic value determined in this way is compared to a pre-defined characteristic value; and a furnace condition can be determined on the basis of this comparison.
IPC 8 full level
F27B 13/14 (2006.01); F27D 19/00 (2006.01); F27D 21/00 (2006.01)
CPC (source: EP US)
F27B 13/14 (2013.01 - EP US); F27D 19/00 (2013.01 - EP US); F27D 21/00 (2013.01 - EP); F27D 2019/0003 (2013.01 - US); F27D 2019/0009 (2013.01 - US); F27D 2019/0018 (2013.01 - US)
Citation (search report)
See references of WO 2022089796A1
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
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
WO 2022089796 A1 20220505; AU 2021371781 A1 20230525; CA 3195549 A1 20220505; EP 4237778 A1 20230906; US 2023400254 A1 20231214
DOCDB simple family (application)
EP 2021069571 W 20210714; AU 2021371781 A 20210714; CA 3195549 A 20210714; EP 21748537 A 20210714; US 202118033965 A 20210714