EP 2658678 A1 20131106 - DEVICE AND METHOD FOR PARTICLE BLASTING WITH FROZEN GAS PARTICLES
Title (en)
DEVICE AND METHOD FOR PARTICLE BLASTING WITH FROZEN GAS PARTICLES
Title (de)
VORRICHTUNG UND VERFAHREN FÜR PARTIKELSTRAHLEN MIT GEFRORENEN PARTIKELN
Title (fr)
DISPOSITIF ET PROCÉDÉ POUR LE DÉCAPAGE PAR PROJECTION DE PARTICULES AVEC DES PARTICULES DE GAZ CONGELÉ
Publication
Application
Priority
- DE 102010064406 A 20101230
- EP 2011067592 W 20111007
Abstract (en)
[origin: WO2012089359A1] The invention relates to a method for generating a mixed jet including frozen particles, in particular CO2 particles and a carrier gas comprising the steps: introducing a liquefied gas into an expansion cavity for generating a flow of agglomerated frozen particles from the liquefied gas; supplying the flow of agglomerated particles and a carrier gas flow to an acceleration nozzle for generating and accelerating a mixed gas jet including the frozen particles and the carrier gas. The following method alternatives are proposed to prevent particle agglomerations: lowering the pressure dew point, heating a wall of the expansion cavity and/or of the acceleration nozzle and/or introducing an additional gas flow in the form of an additional gas for increasing and/or controlling the flow velocity in the interior of the expansion cavity.
IPC 8 full level
B24C 1/00 (2006.01)
CPC (source: EP)
B24C 1/003 (2013.01); B24C 5/02 (2013.01)
Citation (search report)
See references of WO 2012089359A1
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
DOCDB simple family (publication)
WO 2012089359 A1 20120705; DE 102010064406 A1 20120705; EP 2658678 A1 20131106
DOCDB simple family (application)
EP 2011067592 W 20111007; DE 102010064406 A 20101230; EP 11773703 A 20111007