BRIDGE DEVICE FOR PAPER FORMING EQUIPMENT AND METHOD

摘要

A bridge (70) for a papermaking apparatus having a headbox (12), an apron li p (42) and a forming surface (16). The bridge spans a gap between the apron li p of the headbox and the forming surface to substantially eliminate a free jet of stock slurry as it leaves the headbox apron lip. This serves to maintain pressure from the headbox to the forming zone above the forming surface thereby eliminating the reduction in velocity of the stock slurry in the forming zone. In an aspect of the invention, the bridge generates micro- turbulent flow of stock slurry within the forming zone.