Method of treating fibre pulp for the production of fibre products such as paper, fibre boards and the like

Claim 1

IN THE PRODUCTION OF PAPER, FIBERBOARD AND THE LIKE, WHEREIN BACK WATER IS PRODUCED AS AN EFFLUENT, A METHOD OF SIMULTANEOUSLY DEWATERING AND THICKENING THE FRESH PULP FOR SAID PRODUCTION AND SEPARATING FIBERS FROM SAID BACK WATER, THE STEPS WHICH COMPRISE DIRECTING A SLURRY OF DISINTEGRATED AND STRAINED FRESH PULP UPON AN EXPOSED FORAMINOUS SURFACE TO FORM A LAYER OF SAID PULP THEREON, INTRODUCTING THE FORAMINOUS SURFACE CARRYING SAID LAYER OF SAID PULP SUPPORTED THEREON INTO AN AQUEOUS BODY CONTAINING FIBER PARTICLES SUSPENDED TEREIN TO EFFECT DEPOSITION OF SAID FIBER PARTICLES UPON SAID PULP LAYER, REMOVING SAID FORAMINOUS SURFACE WITH ITS PULP LAYER FROM SAID AQUEOUS BODY, REMOVING THE PULP LAYER AND FIBER PARTICLES CARRIED THEREON FROM SAID FORAMINOUS SURFACE, DILUTING THE FIBER PARTICLES THUS OBTAINED, FEEDIN THE DILUTED FIBER SUSPENSION TO A PAPER FORMING MACHINE, REMOVING BACK WATER FROM SAID MACHINE, AND INTRODUCTING SAID BACK WATER INTO SAID AQUEOUS BODY.