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[Oral Session 3] WET END MANAGEMENT BASED ON ON-LINE MEASUREMENTS AND CONTROL SOLUTIONS
Timo Rantala,Martti Artama,Jukka Nokelainen,Taina Sopenlehto 한국펄프·종이공학회 1999 한국펄프종이학회 기타 간행물 Vol.- No.-
In order to manage the wet end chemistry on paper machines, our goal is to control sub-processes through which we can influence the entire wet end operations with maximum effect. The most important sub-processes are: consistency, ash, and chemistry . <br/> The management of these three main groups is based on on-line maesurements and automatic control. This paper presents a new wet end management platform, a new analyzer. This new analyzer utilizes a modular structure and modem software. It is part of a new paper machine concept.<br/> The controls of this concept are feedback and feed forward solutions that control retention, consistencies, ash, and charge, resulting in a more stable wet end (30...80%), more uniform paper, and better runnability.