公开(公告)号：US3813298A

公开(公告)日：1974-05-28

申请号：US35524873

申请日：1973-04-27

Applicant: CHWALEK V

Inventor： CHWALEK V

IPC: C08B30/04 ,  C13L1/00

CPC classification number: C08B30/044

Abstract: A CONTINUOUS PROCESS FOR SEPARATING STARCH PARTICLES AND FIBERS FROM AN AQUEOUS SLURRY CONTAINING SAID PARTICLES AND FIBERS SUSPENDED THEREIN WHICH COMPRISES: (1) PASSING A SUPPLY STREAM OF SAID SLURRY OVER A SCREEN BEND HAVING A SLOT WIDTH OF SUCH DIMENSIONS THAT A SEPARATION OF STARCH FROM FIBER IS EFFECTED TO OBTAIN A FIRST FRACTION COMPRISING AN AQUEOUS SLURRY CONTAINING A MAJOR PORTION OF THE STARCH PARTICLES AND WHICH IS SUBSTANTIALLY FREE OF FIBER, AND A SECOND FRACTION COMPRISING AN AQUEOUS SLURRY CONTAINING IN SUSPENSION, THEREIN SUBSTANTIALLY ALL THE FIBER

AND A MINORPORTION OF THE STARCH PARTICLES; (2) SEPARATING THE SECOND FRACTION INTO TWO COMPONENTS BY CENTRIFUGALLY FORCING SAID SECOND FRACTION AGAINST A SCREEN HAVING OPENINGS OF A DIMENSION SUCH THAT AN AQUEOUS COMPONENT CONTAINING STARCH AND FINE FIBER IS SEPARATED FROM THE FIBER; (3) CONTINUOUSLY RECYCLING THE AQUEOUS COMPONENT CONTAINING STARCH AND FINE FIBER OF STEP (2) TO THE SUPPLY STREAM OF STEP (1); (4) RECOVERING THE FIRST FRACTION OF STEP (1) AND THE FIBER SEPARATED IN STEP (2).