APPARATUS FOR QUICK LARGE-SCALE PRODUCTION OF SOLID CARBON DIOXIDE TABLETS Russian patent published in 2005 - IPC

FIELD: processes or apparatus for liquefying or solidifying gases or gaseous mixtures.

SUBSTANCE: apparatus comprises body with inner partially cylindrical surface, cylindrical rotor installed into the body and rotating around an axis offset from central axis of inner body surface. Apparatus also has feeding unit for liquid CO₂ supplying and expanding communicated with the body and rotor. Liquid CO₂ is supplied from high-pressure source to feeding unit and turns into gas and dry ice. Gas is then discharged. The rotor has a row of blades movable in radial direction and extending between rotor and inner body surface so that pockets for dry ice receiving from feeding unit are formed. During rotor rotation about its axis pockets and dry ice are circumferentially displaced, pocket volumes decrease and dry ice is pressed to form tablets. The body has unloading zone communicated with the pockets having minimal volumes to unload solid tablets from the body.

EFFECT: increased output along with reduced time for solid carbon dioxide tablet production, increased density of the tablets, reduced power inputs, possibility of in-situ solid carbon dioxide tablet production.

23 cl, 20 dwg