Application of PI in Pulp and Paper Enterprise

What is PI?
PI, Plant Information System, is a large-scale real-time/history database software used in information management in the pulp and paper industry all over the world; it is a time-series database platform for client/server structure developed by OSI Software in the United States; it is an important part of ERP system. component.
What is the secret of successful information systems?
Many pulp and paper mills are now equipped with advanced control systems and management information systems are gradually established. However, it is basically the management of management and the control of control, so that the further improvement of efficiency is limited. Therefore, the integration of management and control has become a major issue for companies to consider, and system integration in production companies has also been correspondingly generated. In order to reduce costs and reduce risks, many foreign pulp and paper mills (such as International Paper, Georgia Pacific, StoraEnso, Champion International, Mead, PCA, Willamette) have successfully succeeded in the system integration process. A reasonable part, the most significant of which is the popularity of real-time/history databases. The factory real-time/history database serves as a bridge between management and control. It not only has a significant effect on production monitoring, but also the management department can use production data in real time to improve management efficiency.
In the increasingly fierce pulp and paper industry, promptly and comprehensively grasping the production situation is very important for improving product quality and improving service levels, and for rapid diagnosis and decision-making. If the decision-making department cannot obtain the necessary site information within a few seconds, if these data can be obtained only after several weeks or even at the end of the month, it is too late to make a decision and adjust the production operation. PI can provide a unified data warehouse for the entire company. The owner of the company can see and analyze the required production data in real time no matter where it is, even a few years ago.
Real-time/history databases and relational databases
Many successful pulp and paper mills have two database servers in the information system: one is a real-time/historical database PI and the other is a relational database such as ORACLE. The two databases handle different data. PI provides the real-time production data for the client program of a relational database or a relational database; PI can also call data from a relational database, such as product specifications. However, PI and the relational database are very different. Relational databases are often used to handle personnel, financial, sales, and other management data. The PI specifically stores, displays, and analyzes data related to the production process in real time. The change time of these data is generally in seconds. Therefore, PI has unique features and application areas.
The features of PI can collect almost all production data. There are standard interface programs with more than 150 kinds of DCS, QCS, PLC, and LIMS. For special control systems, they can provide Interface development tools.
Advanced data compression technology, hundreds of thousands of points of production data can be stored online for many years, does not require a lot of hard disk space. The so-called online storage means that it takes only a few seconds to call production data for several years.
Stored with the original time and accuracy of the data. Save the original data, do not need to average, sum.
Strictly follow Microsoft standards. A variety of management, analysis, and display tools are easy to learn and use, such as the graphical user interface ProcessBook, Excel, and DataLink for Lotus 1-2-3.
Provide practical development tools, users can develop a variety of display screens for online computing.
The structure is open and flexible. Not only does it have data interfaces with relational databases, but it also has standard interfaces with many applications, such as GradeBook, Simumill, TrimTracker, LabPlus, ChemTracker, and expert systems commonly used in the paper industry.
Use a browser to browse various dynamic scenes on the Intranet or the Internet.
Typical Applications of PI Process Analysis: Process Optimization and Analysis, Energy Management, Yield Calculation.
Process diagnostics and troubleshooting: monitoring of the main parameters of the pulping process such as cooking, washing, paper machine break analysis.
Quality monitoring: Use PI-Profile to monitor paper quality (eg, quantitation, humidity, etc.), or use PI-SQC to track changes in key parameters.
Production reports: Various production reports are automatically generated and automatically updated. And it can be displayed in real time on all terminals.
Environmental monitoring: continuous monitoring of emissions and so on.
Energy monitoring: Monitor the efficiency of boilers, evaporators, refiners, drying systems, etc., and optimize the use of energy. Device Simulation: Use PI data to build a model of the device.
ERP Integration: Provides real-time data for ERP systems such as SAP.