MIXING UNIT Russian patent published in 1994 - IPC

FIELD: preparation of small portions of quick-setting compounds. SUBSTANCE: mixing unit has mixing chamber mounted in vertical position and provided with widened portion disposed in its upper part and mixer with longitudinal channel, whose inlet end is disposed above the level of changed ingredient and outlet is disposed at mixer end portion. Mixer is provided with coil having two portions oriented in opposite directions with groove between them. During charging the groove is disposed below the level of mixing chamber widened portion. Such arrangement of member allows preliminary averaging of weight in upper part of mixing chamber to be provided and prevents conglutination of mass at mixing chamber outlet end. Moreover, interruption of mass followed by catching of air inclusions is eliminated. EFFECT: simplified construction and increased efficiency by eliminating conglutination and interruption of mass and decreased requirements for synchronism of ingredient dosage system. 1 dwg