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US 6,855,227 B2Granted
Paper machine and method of dewatering a fiber web using displacement pressing and through air drying
AssigneeVoith Paper Patent GmbH
InventorDavid Beck
Life of this patent
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Abstract
A method of dewatering a fiber web in a paper machine, includes the steps of: dewatering the fiber web in a forming section to a solids content of greater than approximately 10%; displacement pressing the fiber web in an air press assembly to a solids content of greater than approximately 40%; and through air drying the fiber web in at least one air press assembly to a higher solids content.
Claims31
A method of dewatering a fiber web in a paper machine, comprising the steps of:
- dewatering the fiber web in a forming section to a solids content of greater than approximately 10%;
- displacement pressing the fiber web in an air press assembly to a solids content of greater than approximately 40%;
- and
- through air drying the fiber web in at least one air press assembly to a higher solids content.
1 more element
A method of dewatering a fiber web in a paper machine, comprising the steps of:
- mechanically displacing water from the fiber web in a press assembly to a solids content of greater than approximately 40%;
- and
- evaporating water from the fiber web in at least one air press assembly to a higher solids content.
A paper machine, comprising:
- a forming section configured for dewatering the fiber web to a solids content of greater than approximately 10%;
- an air press assembly configured for displacement pressing the fiber web to a solids content of greater than approximately 40%;
- and
- at least one air press assembly configured for through air drying the fiber web to a higher solids content.
1 more element
Dependencies are inferred from the claim text.