Importance

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Abstract

A cleaning appliance for blasting surfaces to be treated with a mixed stream of a pressurized gas and CO₂ pellets is disclosed and includes an apparatus for producing CO₂ pellets from liquid or gaseous CO₂, wherein the apparatus includes a compressing device for compressing CO₂ snow to form the CO₂ pellets, wherein the compressing device includes an expansion device for creating CO₂ snow by expanding liquid or pressurized CO₂, wherein the expansion device includes an expansion chamber with an expansion chamber inlet, wherein the cleaning appliance includes a CO₂ connection line that is fluidically connected to the expansion chamber inlet for supplying the liquid or gaseous CO₂ to the expansion device, and wherein the cleaning appliance includes a cooling device for cooling the CO₂ connection line.

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First Claim