ARRANGEMENT AND METHOD FOR RECOVERY OF ENERGY IN A PAPER MACHINE

The invention relates to a method of recovering energy in a forming section of a papermaking or boardmaking machine, wherein stock from a headbox (2) is fed into a forming zone of a forming section, said forming zone including at least one looped forming fabric (6; 10) curving along a convex surface of a support member, and water is drained from the stock (21) through said at least one forming fabric (6; 10) in the forming zone to form a paper or board web (W), the water passing through said at least one fabric (6; 10) being thrown out from the forming zone and possessing kinetic energy, c h a r a c t e r i z e d by placing a movable component (14) in the water thrown out from the forming zone, so as to cause the water to move the component (14), and thereby recovering part of the kinetic energy. The invention also relates to an arrangement in a papermaking or boardmaking machine.