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Standards and Technical Documents - Recursive Update of a Reduced Order Dynamic PLS Soft Sensor and Its Application to Digester Control - ISA Automation Week 2011: Advanced Process Control Techniques
Description: Kraft pulping is the most commonly used chemical pulping process which usually utilizes a continuous Kamyr digester. Control of a continuous Kamyr digester is quite challenging, and one of the main reasons is that the primary product quality variable (i.e. Kappa number)Show More
Standards and Technical Documents - Trends and Advances in Process Control & Instrumentation in the Pulp & Paper Industry - ISA Automation Week 2011: Installation, Operations, & Maintenance
Description: , cleaning, consistency, continuous emissions monitoring (CEM), converting, delignification, ECF, electrostatic precipitator, gasification, green liquor, headbox, high-yield pulping, infrared drying, kamyr digester, Key Performance Indicator, market pulp, open-system controlShow More
Supplier: IHS Product Design
Description: GUIDELINES FOR CORROSION RESISTANT WELD METAL OVERLAY OF DIGESTER VESSELS IN ALKALINE PULPING SERVICEShow More
Supplier: Metalfab, Inc.
Description: Product Overview Metalfab's rugged stainless steel Pre-Steamer Bin Activator is used primarily in the pulp and paper industries both as a standard bin activator and also to presteam wood chips as a precursor to feeding them into the digester. Presteaming the chips dramatically
- Equipment Type: Bin Activator System
- Material Characteristics: Dry / Free Flowing
- Material Type: Pulp and Paper / Wood
- Size: 72 to 144 inch
Supplier: B+E - Stainless Valve Company
Description: Excellent performance with an absolute minimum of maintenance. This valve is built rugged enough to withstand almost any problem related to the batch pulp digesters.
- Actuation: Pneumatic
- Number of Ports/Ways: 2
- Pressure Rating: 300 psi
- Primary Material of Construction: Stainless Steel
Supplier: RBC Bearings
Description: This RBC Tapered Roller Thrust Bearing is designed for demanding applications in harsh environments, such as oil field top drives, oil field swivels, extruders, pulp refiners, pulp digesters, and boring mill tables. This bearing is fully interchangeable with the industry
- Design Units: Inch
- Dynamic Axial / Thrust Load: 1.58E6 lbs
- Height: 5.75 inch
- Inside Diameter: 16.01 inch
Supplier: BUG-O Systems, Inc.
Description: The All Position Overlay System is designed for pulp digesters, boiler tube walls or any vessel or surface that requires over-lay repair. The system will travel at a regulated, precise travel speed producing consistent uniform overlay patterns. A welding current sensor monitors and
- Welding Accessories: Tube / Circumferential Welder
Supplier: BUG-O Systems, Inc.
Description: The All Position Overlay System is designed for pulp digesters, boiler tube walls or any vessel or surface that requires overlay repair. The system will travel at a regulated, precise travel speed producing consistent uniform overlay patterns. A welding current sensor monitors and
- Arc / Resistance Processes: Orbital / Tube Arc Welding
- Equipment Type: Welding Equipment
Supplier: Universal Wire Works Inc.
Description: Universal 310Mo electrodes are used for the welding of the clad side of types 316, 316L, and 317 clad steels. This alloy is also used for welding other molybdenum bearing stainless steels to mild or carbon steel. Universal 310Mo is used extensively for overlaying digesters in the pulp
- Applications: Other
- Elongation: 40 %
- Metal / Alloy Types: Stainless Steel (UNS S)
- Shape / Form: Wire / Shaped Wire
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Sherwin-Williams Protective & Marine Coatings
severe wastewater and sewer collection structures and is designed for manholes, basins, wet wells, clarifiers, lift stations, influent channels, trenches, pipes, sumps, and digesters. It is suitable for power generation facilities, mining, food and beverage facilities, the pulp and paper industry, secondary containment, and industrial wastewater treatment. (read more)
Browse Surface and Corrosion Protection Products Datasheets for Sherwin-Williams Protective & Marine Coatings
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Dry Kraft Pulping at Ambient Pressure for Cost Effective Energy Saving and Pollution Deduction
The third method is to first remove the free water of pretreated woodchips, followed by dry pulping using a conventional Kraft pulping digester with AQ and triton as additives.
The sulfite pulping process uses cooking liquors of sodium bisulfite or magnesium bisulfite in a pulp digester with a pH of 3.
Pulp cooking control and wood species change control for a Kamyr continuous digester
7)Wisnewski, Doyle: Model- Based Predictive Control Studies for a Continuous Pulp Digester , IEEE Transaction on control systems techno- logy, Vo1.9., NO.^., pp.435-444, 2001.
Bookshelf and Unified Agenda > Department of Labor > Occupational Safety and Health Administration > Compliance Directives > 2004 > [FDBK DOL osha.direc] CPL 0...
This is a new directive describing policies and procedures regarding pulp digesters .
For example, for pulp digesters , n = 25 and n = 50 have been reported in  and  respectively.
Nonlinear adaptive model predictive control based on self‐correcting neural network models
To test the efficiency of the proposed adaptive MPC config- uration, we implemented it on a complex nonlinear industrial reactor used in the pulp and paper industry: the continuous pulp digester .24 A rigorous first-principles model25 was used to simulate the …
Final Report ''Model-Based Approach to Soft-Sensing and Diagnosis for Control of a Continuous Digester''
Project Objective: The goal of the work was to develop and demonstrate computing based modeling and control methodologies that will facilitate integrated operations on the continuous pulp digester .
Wood Pulp Digetster Wall Corrosion Investigation
Wood Pulp Digester Wall Corrosion Investigation .
Physical model parameter estimation of a nonlinear process
Abstract— A physical model of a nonlinear subprocess in a continuous paper pulp digester is discussed and simplified.
Determining the model order of nonlinear input/output systems
Simulated pulp digester .