Title (en)

METHOD FOR MINIMIZING NITROGEN OXIDE GASES IN UNDERGROUND MINING AND TUNNEL CONSTRUCTION

Title (de)

VERFAHREN ZUR MINIMIERUNG NITROSER GASE IM UNTERTÄGIGEN BERG- UND TUNNELBAU

Title (fr)

PROCÉDÉ POUR RÉDUIRE AU MINIMUM LES VAPEURS NITREUSES DANS LE DOMAINE DE L'EXPLOITATION MINIÈRE SOUTERRAINE ET DU CREUSEMENT DE TUNNELS

Publication

EP 2547426 A2 20130123 (DE)

Application

EP 11715155 A 20110218

Priority

• DE 102010012052 A 20100319
• DE 2011000161 W 20110218

Abstract (en)

[origin: WO2011113408A2] In order to minimize nitrogen oxide gases in the air flows of underground mining and tunnel construction, a method and a system are provided, wherein the corresponding blasting fumes containing Nox components or the emissions of diesel generators are collected directly at the point of origin and then cleaned. The cleaning is performed in such a way that the maximum allowable concentration values as currently specified or as applicable in the future are adhered to. For this purpose, a targeted Nox cleaning is provided after the actual removal of the dust. Said targeted Nox cleaning ensures that the air cleaned in such a way can then return to the remaining air flow.

IPC 8 full level

B01D 53/56 (2006.01); E21F 7/00 (2006.01); F42D 3/04 (2006.01)

CPC (source: EP)

B01D 53/02 (2013.01); B01D 53/1456 (2013.01); E21F 5/20 (2013.01); B01D 2253/102 (2013.01); B01D 2257/404 (2013.01); B01D 2258/012 (2013.01)

Citation (search report)

See references of WO 2011113408A2

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 102010012052 A1 20110922; EA 023474 B1 20160630; EA 201201301 A1 20130228; EP 2547426 A2 20130123; WO 2011113408 A2 20110922; WO 2011113408 A3 20120628

DOCDB simple family (application)

DE 102010012052 A 20100319; DE 2011000161 W 20110218; EA 201201301 A 20110218; EP 11715155 A 20110218