发明名称 |
METHOD AND DEVICE FOR GENERATING A TWO-PHASE GAS-PARTICLE JET, IN PARTICULAR CONTAINING CO2 DRY ICE PARTICLES |
摘要 |
The present invention relates to a method and a device for generating a two-phase gas-particle jet for treating surfaces by means of particles, in particular CO2 dry ice particles (22), using a two-phase gas-particle jet. To this end, the CO2 dry ice particles (22) are fed with a tangential flow to a blasting chamber (30) in such a manner that the CO2 dry ice particles (22) are forced into a rotational movement about an axis of flow (50), the angular velocity of this rotational movement then being increased in the direction of flow by means of a blasting nozzle (40), so that maximum speeds occur in the blasting-nozzle outlet (42). The two-phase gas-particle jet emerging from the blasting-nozzle outlet (42) is formed in such a way that the solid-phase CO2 dry ice particles (22) are arranged in a uniform ring shape with an enlarged external diameter. The invention achieves in particular a considerable rise in the surface power when cleaning surfaces by means of CO2 dry ice particles (22).
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申请公布号 |
WO9943470(A1) |
申请公布日期 |
1999.09.02 |
申请号 |
WO1999EP01047 |
申请日期 |
1999.02.19 |
申请人 |
L'AIR LIQUIDE, SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE;FROHLICH, HANS;GEBHARDT, SABINE;TRAMPUSCH, BERTHOLD |
发明人 |
FROHLICH, HANS;GEBHARDT, SABINE;TRAMPUSCH, BERTHOLD |
分类号 |
B24C1/00;B24C5/04;(IPC1-7):B24C1/00 |
主分类号 |
B24C1/00 |
代理机构 |
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地址 |
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