Abstract
This paper presents the design of refiner control system for recycled paper stock preparation as a complete solution to fulfill refiner control requirements. This control system is based on Specific Energy Consumption (SEC) control (indirect freeness control) providing uniform refining during production range changes or changes in consistency and flow. In addition, SEC controller provides minimizing paper breaks, optimizing energy consumption and maximizing overall quality. The designed controller includes some interlocks that are very important for refining control systems such as low and high pressure, insufficient stock flow, low consistency and automatic unloading limit values. The system is equipped with two types of controllers which are power controller and SEC controller. Fuzzy and three-step algorithms for control process have been developed in the microcontroller unit. C++-based software was developed to communicate between the host computer and the designed microcontroller unit over the RS232 interfacing unit. Key words: Fuzzy control, freeness, refiner system, specific energy consumption, three-step control.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
