An apparatus for manufacturing a dried web of paper

Details An apparatus for manufacturing a dried web of paper An apparatus for manufacturing a dried web of paper

D - Textiles, Paper

21

F

D21F 3/02 (2006.01) D21F 2/00 (2006.01) D21F 9/00 (2006.01) D21G 9/00 (2006.01)

Patent

CA 2107236

An apparatus (10) includes a forming section (12) for forming a web (W) from stock. The apparatus (10) also includes a press section (14) which is disposed downstream relative to the forming section (12) for removing a portion of water from the formed web (W). The press section (14) includes a suction pick-up roll (18) disposed downstream relative to the forming section (12) for picking up the formed web (W) from the forming section (12). A press felt (20) extends around the suction pick-up roll (18) such that in use of the apparatus (10), the formed web (W) is picked up from the forming section (12) and is supported by the press felt (20). An extended nip press (22) is disposed downstream relative to the pick-up means (16). The press (22) includes a rotatable backing roll (24) and a pressing shoe (26) which cooperates with the backing roll (24) for defining therebetween an elon- gate pressing section (28). A bearing blanket (30) movably extends through the pressing section (28) with the blanket (30) coope- rating with the suction pick-up roll (18) such that the formed web (W) is transferred from the press felt (20) to the blanket (30). The apparatus (10) also includes a dryer section (32) which includes a rotatable dryer (34) having a heated surface (36) which cooperates with the blanket (30) such that the pressed web (W) is transferred from the blanket (30) to the heated surface (36) of the dryer (34). A dryer felt (38) extends around a portion (40) of the heated surface (36) which is disposed downstream relative to the blanket (30) such that the web (W) is sandwiched between the dryer felt (38) and the dryer (34).

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