Global Patent Index - EP 4022237 A1

EP 4022237 A1 20220706 - 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 DE FONCTIONNEMENT D'UN FOUR

Publication

EP 4022237 A1 20220706 (DE)

Application

EP 20765213 A 20200819

Priority

  • EP 19194176 A 20190828
  • EP 2020073168 W 20200819

Abstract (en)

[origin: WO2021037622A1] 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 formed from a plurality of heating ducts (12) and furnace chambers (13), wherein the furnace chambers serve for receiving carbon-containing products, in particular anodes, and the heating ducts serve for controlling the temperature of the furnace chambers, wherein the furnace comprises at least one furnace unit (11), wherein the furnace unit comprises a heating 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 furnace chambers, wherein, of the furnace unit, an extraction ramp (15) is arranged in a section of the heating zone and a burner ramp (16) is arranged in a section of the firing zone, wherein process air in the heating ducts of the firing zone is heated 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, wherein operation of the ramps is controlled by means of a control device of the furnace unit, wherein an amount of fuel of the burner ramp is determined by means of the control device and wherein, for at least one section, a ratio of the combustion air and the amount of fuel is determined by means of the control device.

IPC 8 full level

F27B 13/14 (2006.01); F27D 19/00 (2006.01)

CPC (source: EP US)

F27B 13/14 (2013.01 - EP US); F27D 19/00 (2013.01 - EP US); F27D 2019/0003 (2013.01 - US); F27D 2019/0006 (2013.01 - EP); F27D 2019/004 (2013.01 - EP); F27D 2019/0043 (2013.01 - US)

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)

WO 2021037622 A1 20210304; AU 2020339655 A1 20220317; CA 3149393 A1 20210304; EP 4022237 A1 20220706; US 2022381512 A1 20221201

DOCDB simple family (application)

EP 2020073168 W 20200819; AU 2020339655 A 20200819; CA 3149393 A 20200819; EP 20765213 A 20200819; US 202017638324 A 20200819