Abstract

Apparatus for manufacturing dry ice pellets (114) with multiple parallel cylindrical press chambers (101) disposed axially about a center shaft 108, provided with liquid carbon dioxide (106) through a center shaft 108, where it expands to gas and solid state in the form of dry ice snow (111). In each press chamber (101) there is a filter wall (102), a movable piston (104), and at the end of each press chamber (101) a hole plate (103). The pistons (104) press dry ice snow (111) into solid dry ice (113) through the hole plates (103), thereby forming dry ice pellets (114) on the exit side. Pistons (104) and center shaft (108) are driven by a motor-driven swash plate (105). The device is compact and designed to integrate dry ice pellet production into appliances or equipment that consumes dry ice pellets, manually or automatically. This could be in conjunction with a robot solution with dry ice blasting. The apparatus is suitable for assembly with carbon dioxide gas recycling equipment 901, such that the use of liquid carbon dioxide (106) is improved.

IPC Classes  ?

• F17C 7/00 - Methods or apparatus for discharging liquefied, solidified, or compressed gases from pressure vessels, not covered by another subclass
• B30B 11/26 - Extrusion pressesDies therefor using press rams
• C01B 32/55 - Solidifying
• F25J 1/00 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures