Invention Grant
- Patent Title: System and method to control press section dewatering on paper and pulp drying machines using chemical dewatering agents
- Patent Title (中): 使用化学脱水剂在纸和纸浆干燥机上控制压榨部脱水的系统和方法
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Application No.: US12059425Application Date: 2008-03-31
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Publication No.: US07964064B2Publication Date: 2011-06-21
- Inventor: David Ira Weinstein , Michael Robert St. John , Rodney H. Banks , James L. Thomas
- Applicant: David Ira Weinstein , Michael Robert St. John , Rodney H. Banks , James L. Thomas
- Applicant Address: US IL Naperville
- Assignee: Nalco Company
- Current Assignee: Nalco Company
- Current Assignee Address: US IL Naperville
- Agent Joshua D. Bishop; Michael B. Martin
- Main IPC: D21F13/00
- IPC: D21F13/00
Abstract:
The present invention provides an automatic control system, method and paper manufacturing machine using such control system for automatically controlling the amount of press section dewatering via the metered application of chemical dewatering agents applied to a paper web in a paper manufacturing process. The control system includes a feedback controller for controlling the amount of chemical dewatering agent applied to a paper web, and a monitoring device for obtaining a measurement of the moisture of the paper web exiting the press section.
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