A forming apparatus

Details A forming apparatus A forming apparatus

D - Textiles, Paper

21

F

D21F 9/00 (2006.01) D21F 1/48 (2006.01)

Patent

CA 2110494

A forming apparatus (10) is disclosed for forming a web (W) from stock (S) having an ash content above 20 percent. The apparatus (10) includes a headbox (12) and a first and a second endless looped forming wire (16, 18) cooperating together to define therebetween a forming section (20) having an upstream and a downstream end (22, 24). A curved shoe (26) cooperates with the second wire (18), so that a first portion of water (28) is removed through the first wire (16). A de- watering device (30) is disposed between the shoe (26) and the down- stream end (24) of the forming section (20) with the dewatering device (30) cooperating with the first wire (16). The arrangement is such that a second portion of water (32) is removed from the stock (S) through the second wire (18). A further dewatering shoe (34) is disposed between the dewatering device (30) and the downstream end (24) of the forming section (20). The further shoe (34) cooperates with the second wire (18) and is disposed on the same side of the wires (16, 18) as the shoe (26). The further shoe (34) is connected to a source of partial vaccum (36) such that a third portion of water (38) is removed from the stock (S) through the second wire (18). The arrangement is such that from the upstream to the downstream end (22, 24) of the forming section (20), water is progressively and evenly removed from the stock (S) through both wires (16, 18) so that two-sided ness of the resultant web is mini- mized while maintaining retention of the ash within the web.

Affiliated with

Also associated with

Rating

A forming apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with A forming apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A forming apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1420380