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US 11,891,759 B2Granted
Heat recovery from vacuum blowers on a paper machine
AssigneeStructured I, LLC
InventorsJames E. Sealey, II, Byrd Tyler Miller, IV
Life of this patent
Estimating the term…
Abstract
A papermaking process including the steps of forming a wet paper web on a papermaking machine, pulling vacuum through the web to remove water from the web and thereby generate discharge air, and diverting at least a portion of the discharge air through a control loop to a hot air drying system within the papermaking process to aid in drying the web, wherein the vacuum is generated by centrifugal blowers.
Claims14
A papermaking machine comprising:
- one or more centrifugal blowers that pull vacuum through a wet paper web at at least one web pre-drying location within the papermaking machine where water is removed from the web and discharge air is generated;
- and
- a control loop that diverts at least a portion of the discharge air to a hot air drying system disposed at a final web drying location within the papermaking machine to aid in drying the web.
Dependencies are inferred from the claim text.