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US 4,560,438 AGranted
Method and apparatus for reducing the energy consumed when drying a paper web
AssigneeKMW Aktiebolag
InventorsLars E. K. A. Tell, Carl C. E. Johannesson
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AssigneeKMW Aktiebolag
InventorsLars E. K. A. Tell, Carl C. E. Johannesson
Estimating the term…
A method and apparatus which reduces the amount of energy consumed in drying a paper web are disclosed. The reduction is accomplished by trimming the paper web while it is being conveyed on a moving fabric to divide the formed web into a trimmed web and couch trimmings respectively. Thereafter, suction is applied in the area where the pick-up of the trimmed web from the fabric is accomplished so as to deflect the portion of the felt on which the couch trimmings lie. As a result, only the trimmed web is conveyed to the drying section so that no energy is expended in drying the couch trimmings. The apparatus and method is particularly applicable to the manufacture of paper having a low grammage (basis weight) since contact between the couch trimmings and the pick-up felt is avoided.
A method for reducing the amount of energy consumed in the drying section of a paper machine in which a paper web is formed on a moving fabric and is thereafter picked up and transferred from the fabric and conveyed to and through a drying section, said method comprising
An apparatus for reducing the amount of energy consumed in the drying section of a paper machine which includes a wire part for forming a paper web on a moving fabric and a drying section for receiving and drying the formed web, said apparatus comprising
Dependencies are inferred from the claim text.