DEVICE FOR COUNTERFLOW CONTACTING OF LIQUID AND GRAIN PHASES Russian patent published in 2005 - IPC

FIELD: chemical industry.

SUBSTANCE: device comprises vertical cylindrical housing whose bottom section receives drain unit with deflector and central pipe whose top section is provided with the hopper for charging grain phase. The top of the cylindrical housing is pressure-tightly connected with the hopper of the central pipe, and the top section of the ring zone defined by the housing and central pipe additionally receives distributor of grain and liquid phases made of overturned trancated cone that defines a ring space together with the central pipe. The branch pipe for discharging exhaust grain phase is provided with valving device, and the top section of the hopper additionally receives branch pipe mounted above the level of the grain phase and provided with the drain for discharging liquid phase which is supplied from the central pipe and hopper and branch pipe for tangential inflow of initial grain phase. The ring space between the distributor and central pipe is equal or greater than the diameter of the branch pipe for discharging exhaust grain phase.

EFFECT: improved performance.

4 cl, 1 dwg