Managing disturbances caused by broke and recovered solids The furnish mix in the mixing chest contains virgin fibre components and broke. Broke represents a potential source of disturbance to the fibre ratios as it may originate from a previous production run and thus be of a different grade than the current production. Bookkeeping the grade
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Managing disturbances caused by broke and recovered solids
After reading this article you will..
- learn the role of broke in the management of the paper machine.
Content
Process control and automation
- Introduction to process control and automation
- Development of process automation
- Fibre process automation
- Chemical recovery as a control object
- Advances in paper machine automation
- Paper machine as a dynamical system
- Tasks in paper machine control and management
- Control of stock flow concentration and quality
- Machine direction control
- Cross-directional control – The static optimisation
- Cross-directional control – Dynamics
- Cross-directional control – further aspects
- Controlling functional paper properties
- Managing grade chances in the paper machine
- Managing disturbances caused by broke and recovered solids
- Millwide systems
- Modelling and control methods
Authors & references
Author:
Risto Ritala, Tampere University
Videos
Exercises
This page has been updated 15.11.2020
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