Apparatus for the treatment of animal and vegetable materials

Claim 1

APPARATUS FOR EXTRACTING, BLEACHING AND WASHING OF VEGETABLE AND ANIMAL MATERIALS, IN PARTICULAR SUGAR BEET OF SLICES, COMMINUTED SUGAR CANE AND CELLULOSE WITH THE EMPLOYMENT OF AN EXTRACTING LIQUID, COMPRISING A TOWER, A ROTATABLE SHAFT EXTENDING ALONG THE AXIS OF SAID TOWER, MEANS FOR ROTATING SAID SHAFT, CONVEYOR MEANS FIXED TO SAID SHAFT FOR CONVEYING SAID MATERIAL UPWARDLY FROM THE BOTTOM OF SAID TOWER TO THE TOP OF SAID TOWER, SAID TOWER CONTAINING FOUR ZONES CONSISTING OF A SRIRRING ZONE AT THE BOTTOM OF SAID TOWER, A SEPARARTING ZONE ABOVE STIRRING ZONE, AN EXTRACTING ZONE ABOVE SAID SEPARATING ZONE, SAID EXTRACTING ZONE BEING SUBSTANTIALLY IN THE MIDDLE OF SAID TOWER, AN EJECTION ZONE, SAID STIRRING ZONE HAVING AN OUTLET THROUGH WHICH SAID EXTRACTING LIQUID FLOWS AND AN INLET, A SCREEN COVERING SAID OUTLET AND MEANS FOR PUMPING SAID MATERIAL THROUGH SAID INLET INTO SAID STIRING ZONE, SAID CONVEYOR MEANS COMPRISING BLADES PROJECTING RADIALLY FROM SAID ROTATABLE SHAFT WITHIN SAID STIRRING ZONE, A WORM CONVEYOR SECURED TO SAID SHAFT ABOVE SAID RADIALLY PROJECTING BLADES AND POSITIONED IN SAID SEPARATING ZONE, SAID BLADES CONVEYING THE MATERIAL FROM SAID STIRRING ZONE TO SAID SEPARATING ZONE, SAID WORM CON-