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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 controls
- Equipment Type: Complete System
- Arc / Resistance Processes: Orbital / Tube Arc Welding
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 controls
- Welding Accessories: Tube / Circumferential Welder
Description: M series Pocket Feeder valve for separator service in pulp and paper industry is designed for automatic removal of sand and other fine debris from the process. Typical applications are the chip chute circulation process of a continuous pulp digester and other junk traps. M series pocket feeder
- Material: Stainless Steel
- Features: Metal Seated
- Valve Size: 2 to 8 inch
- Number of Ports: 2
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 standard offering.
- Design Units: Inch
- Inside Diameter: 6 inch
- Outside Diameter: 12.5 inch
- Height: 2.75 inch
Supplier: High Performance Alloys, Inc.
Description: Outstanding corrosion resistance in reducing and oxidizing environments. Maintains corrosion resistance in welded condition. Excellent resistance to pitting and stress-corrosion cracking (SCC). Widely used in severest environments in chemical processing, pollution control, pulp and paper. Nickel
- Nonferrous Metals: Non-ferrous - Any Type, Nickel / Nickel Alloy (UNS N)
- Alloy: Yes
- Standards / Specifications: ASTM / ASME, UNS
- UNS Number: 10276
Standards and Technical Documents - Trends and Advances in Process Control & Instrumentation in the Pulp & Paper Industry - ISA Automation Week 2011: Installation, Operations, & Maintenance
Description: , 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 control system platforms, paper, paper
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 increases
- Equipment Type: Bin Activator System
- Size: 72 inch
- Material Characteristics: Dry / Free Flowing
- Material Type: Pulp and Paper / Wood
Description: in such applications as closed loop pneumatic conveying, fuel or process gas handling, or elevated pressure applications up to 100 PSIG (6.89 bar g) discharge. Applications: Oil-Free Handling Fuel, Utility or Process Gases Pulp/Paper Processing Laser Recirculation Systems Fluid Bed Combustion Closed
- Applications: Pressure / Pressurization Blower
- Design Configuration: Positive Displacement / Rotary Lobe
- Air Flow Rate: 400 to 840 SCFM
- Static Pressure: 6 to 15 psi
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.
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 and paper
- Ferrous / Iron Based: Ferrous / Iron Based - Any Type, Stainless Steel (UNS S)
- Alloy: Yes
- Standards / Specifications: Specialty / Other
- Performance Features: Austenitic
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Pulp Mill Green Liquor Heating & Lime Slaker
Pulp mills produce pulp from wood chips by producing chemicals such as green liquor. Green liquor is a combination of recovery boiler smelt, and dilute white liquor. Green liquor must be heated prior to the lime addition and temperature plays a key role in the chemical reaction. Do your Green Liquor heaters experience the following: Steam hammer damage resulting in yearly maintenace & high spare parts costs?. Corrosion stress damage to heat exchanger welds & steam... (read more)
Browse Steam Injection Heaters Datasheets for ProSonix Corporation
BUG-O Systems, Inc.
All-Position Overlay System
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 controls the torch arc length on pitted or irregular surfaces. The system can be customized for job specific applications on circumferences or flat walls and can be configured to handle a variety of operating windows... (read more)
Browse Welding Accessories Datasheets for BUG-O Systems, Inc.
Metalfab's Rugged Pre-Steamer Bin Activator
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 increases the throughput of the digester resulting in reduced processing time, increased efficiency and improved mill profits. . (read more)
Browse Bin Activators and Discharge Aids Datasheets for Metalfab, Inc.
Application Requirement. Application : Capping valve is a chip filling controlling equipmentinstalled on the digester in paper making industry. Remote control can berealized when connected to control systems. Design temperature rangeis180?-230?. Metal to metal sealingconstruction assures reliable sealing performance and prevents stream leakingduring cooking. Temperature range:230? and above. Tightness class : ANSI/FCI 70.2-2006 class V and better. The tightnesswill be enhanced... (read more)
Browse Ball Valves Datasheets for LINUO
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Green Liquor Heating for Pulp Digester
20120918.doc. AP-16 Green Liquor Heating & Recausticizing. Fig. 1 – Green Liquor Heating & Recausticizing. Key Words – Green Liquor, Recausticizing, Steam Injection Heater, White Liquor, Pulp Mill. Kraft Pulp mills produce pulp from wood chips. Within the pulp production, a chemical process produces green
Pulp and paper facilities
PULP AND PAPER FACILITIES - CAN WE AFFORD THEM? Kellogg Brown & Root, Inc., 601 Jefferson Ave., JE1255, Houston Texas 77002, USA capital cost, pulp mills, value engineering Capital costs for new, world class, pulp and paper facilities keep increasing. This has resulted in a challenge for financing
Big Blow TM Valves
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. Big Blow. Home Profile Products Customers Capabilities Events Contact Us
Pulp and Paper Industry
The pulp and paper industry uses various chemicals to process pulp, both directly and indirectly. Hydrogen sulfide is created as a by-product of the digester process. Chlorine and chlorine dioxide are used during the bleaching process, while combustible gas detection is used during the drying
New analysis methods for digester management
control must pay attention to this variation, otherwise it will have significant effects on cooking conditions and pulp quality. The alkali analyzer was installed to a continuous digester to measure incoming white liquor quality. This mill uses a two-vessel vapor/liquid phase digester with a daily
Monitoring Non-Condensable Gases (TRS) in Kraft Pulp Mills (.pdf)
Most pulp managers have serious concerns about the safe incineration of non-condensable gases collected from digesters, reactors and other sources in the pulping process.
Implementation of an improved controller
IMPLEMENTATION OF AN IMPROVED MODEL BASED CONTROLLER ON A BATCH PULP DIGESTER: VERIFICATION OF PREDICTIONS C. Sandrock and Philip L. de Vaal Department of Chemical Engineering, University of Pretoria, Pretoria 0001, South Africa process modelling, batch digester, digester control, kinetic
Applications of physical models for control
of Continuous Pulp Digester, Pulp Digester Modeling and Control Workshop, Annapolis, US, June 2001. E. L. Bibeau, P. He and M. Salcudean: Modeling of Wood Chips Shear Forces in Digesters, Pulp Digester Modeling and Control Workshop, Annapolis, US, June 2001. C. Lindgren: Kraft Pulping Kinetics and Modeling
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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.
A neuro-fuzzy system for prediction of pulp digester K-number
A neuro-fuzzy system for prediction of pulp digester K-number .
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 .
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 .
Corrosion of Carbon and Stainless Steels in Kraft Digesters
F.W. Flynn, F.H. Richter, F.B. Snyder, Uneven Corrosion in Alkaline Pulping Digesters , TAPPI J. Vol. 36 No. 10 pp. 433-444 (1953).