Patent ID: 8132338
Filing Date: 2012-03-13
Classification: D21F

Abstract:
1. A method for operating a paper machine for manufacture of absorbent paper, comprising the steps of providing a paper machine having: (a) a forming loop comprising a headbox and a translating foraminous support; (b) a dryer section adapted to receive absorbent paper from said forming loop; and (c) a reel adapted to receive absorbent paper from said dryer system; and a dryer section comprising: and controlling the position of said first diverter damper system to bleed in sufficient air to maintain the humidity in the air supplied to said wet end hood section in the range of between 0.2 and 0.7 pounds of water per pound of dry air at a temperature of over 550° F.; while controlling said second diverter damper system to pass fresh make up air though one of said process heat exchangers and one of said exhaust gas heat exchangers to said dry end hood section at a temperature of between 350° F. and 450° F.; and exhaust air from said dry end hood section to the atmosphere through an exhaust gas heat exchanger.