Control Design Concepts for Supervisory Batch Digester Control, 2017PEERS

Most batch digesters in pulp mills worldwide have been automated to various levels over the last several decades. Different process equipment layouts, mill specific operational procedures and features available on mills’ distributed control systems have resulted in highly customized approaches. In this paper we outline a structured concept to high level design for batch digester control. The process is divided into non-overlapping operations and each operation is divided into several steps that typically require one or more permissives to be satisfied before the step can be executed. Various forms that permissives may take are discussed. Furthermore, automated procedures to handle abnormal and/or unsafe conditions are described. 

TAPPI conference proceedings and presentations, technical papers, and publication articles provide technical and management data and solutions on topics covering the Pulp, Paper, Tissue, Corrugated Packaging, Flexible Packaging, Nanotechnology and Converting Industries.

Simply select the quantity, add to your cart and your conference paper, presentation or article will be available for immediate download.