DRY ICE JETTING NOZZLE AND DRY ICE JETTING APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide a dry ice jetting nozzle and a dry ice jetting apparatus capable of jetting dry ice at high speed over the whole width direction region of a jet port.SOLUTION: A dry ice jetting nozzle formed with a passage for force-feeding dry ice together with compressed gas, jets the dry ice from a jet port 21 provided on the tip side of the passage. The dry ice jetting nozzle includes the jet port 21 of a substantially rectangular cross-sectional shape, and a duct 20 gradually enlarged in diameter in the longitudinal direction X of the jet port 21 from the minimum cross-sectional area 22 in the passage toward the jet port 21 and gradually reduced in diameter in the lateral direction Y of the jet port 21. The passage cross-sectional area of the duct 20 is gradually enlarged from the minimum cross-sectional area 22 toward the jet port 21.