Device for continuous contacting of liquids and solids

A liquid-solid contacting device comprising:

• a plurality of chambers;
• frame means for mounting said chambers in fixed relation to each other, said frame means including bearing means for rotating the chambers about an axis of rotation;
• valve means for supplying and draining liquid from each of said chambers;
• a supply conduit and a drain conduit respectively associated with one of said chambers and communicating between each of said respective chambers and said valve means;
• said valve means including a pair of cylinders and means for holding one of the cylinders stationary and means for rotating the other cylinder for rotation relative to the stationary cylinder, said cylinders being in axial alignment with each other and having in common said axis of rotation one of said pair of cylinders being within the other of said pair of cylinders;
• said frame means being affixed to the rotary cylinder for simultaneous rotation with the rotary cylinder, said stationary cylinder having a plurality of stationary inlet and outlet ports, said rotary cylinder having a plurality of rotary inlet and outlet ports which rotate as said rotating cylinder rotates, said supply and drain conduits being secured to the rotary inlet and outlet ports and to rotating transitional tubes in said rotary cylinder communicating between said stationary inlet and outlet ports and said rotary inlet and outlet ports, whereby fluid may flow into and out of the chambers through the transitional tubes as the cylinders rotate about the axis of rotation.