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1. (WO2017194175) DEVICE FOR PRODUCING CO2 PELLETS FROM CO2 SNOW, AND CLEANING DEVICE

Pub. No.:    WO/2017/194175    International Application No.:    PCT/EP2016/060913
Publication Date: Fri Nov 17 00:59:59 CET 2017 International Filing Date: Sat May 14 01:59:59 CEST 2016
IPC: B24C 1/00
Applicants: ALFRED KÄRCHER SE & CO. KG
Inventors: DE SILVA, Ruwantha
GAßMANN, Jürgen
HAYN, Henning
PLACHKE, Dieter
Title: DEVICE FOR PRODUCING CO2 PELLETS FROM CO2 SNOW, AND CLEANING DEVICE
Abstract:
The invention relates to a device for producing high strength CO2 pellets from CO2 snow, in particular for a cleaning device for blasting surfaces to be treated with a mixture flow of a compressed gas and CO2 pellets, comprising a main compressing device for compressing CO2 snow in order to form CO2 pellets. The aim of the invention is to improve such a device such that CO2 can be produced with the highest density possible. This is achieved in that a pre-compressing device is provided for pre-compressing CO2 snow produced by expanding liquid CO2, said pre-compressing device being designed in particular in the form of a fluidic pre-compressing device. The invention further relates to an improved cleaning device.