Fibers, Fillers and Fines Recovery from the Process Water Coming from Paper Machines and Stok Preparation
O. M. C. “GAMMAFILTER”
2002 Volume 56 Issue 11 Pages 1606-1611
Details
2002 Volume 56 Issue 11 Pages 1606-1611
The GAMMAFILTER assures, compared with the traditional filters, a very large filterring surface (6 times larger), thank to the particular shape of the wires.
The suspended materials settle in the inner side of the drum, which constantly and slowly turns around its axis, forming a layer, whose thickness grows gradually as the drum dips into the water.
That operation improves the filtering action, too. If necessary, some chemicals can be added in the feeding to optimize the coagulation or the flocculation. Thanks to a level difference of 30 cm max from the inner and the outer part of the drum, which can be adjusted by a mechanical overflow, the water naturally flows by gravity towards two symmetrical lateral purges.
The suspended solids contained in the water settle on the wires and create a layer which stays on them.
