Optimization of Water Removal in Forming | Industrial ...

Many paper machines perform with sub-optimal water removal in the forming sectio –due to equipment limitations, inadequate and/or poorly maintained instrumentation and controls in the low and high vacuum dewatering elements. On older paper machines, there is often an excessive quantity of high vacuum elements which add to the vacuum system ...

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Vacuum System | Scientific.Net

Abstract: Keywords: Ion Nitriding Vacuum System PCVDAbstract. Vacuum system design is an important part of the heat treatment furnace. In this paper, the vacuum system of ion nitriding and PCVD composite treatment furnace is advanced a complete and thorough design and calculation to select a vacuum system that is composed of mechanical booster pump and a mechanical vacuum pump, .

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How To Optimize Pulping Method In Pulp And Paper ...

In view of the expanding paper market demand, in order to speed up the continuous optimization of pulping method in pulp and paper manufacturing process, many pulp and paper mills have invested in advanced pulping equipment such as multi-disc vacuum pulp filter and vacuum drum pulp washer, so as to continuously improve the production scale of ...

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TAPPI - TIP 0404-55 - Performance evaluation techniques ...

This document describes general techniques for the evaluation of performance of liquid ring vacuum systems on paper machines. Its intent is to give papermakers a procedure for seeking and eliminating bottlenecks in liquid ring vacuum systems and implementing optimum vacuum performance by reducing operating costs and increasing productivity.

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No. 11 Paper Machine Vacuum System Upgrade | Allnorth

The Catalyst Paper Powell River mill is a leading producer of high-quality uncoated mechanical specialty papers. Allnorth was hired by Catalyst Paper to provide detailed engineering services for the modification of the vacuum system for the No 11 paper machine.

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Optimization of Wire Vacuum - Pulp and Paper Resources .

Note down the observations while the machine is restarted. Most likely you are going to get the same dryness, but at reduced vacuum pump rpm and vacuum pump power consumption. Optimization of Dwell Time: As indicated above, the main emphasis is on reduction in dwell time (open area). One may

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Kadant Johnson Hosts Paper Drying and Process Optimization ...

The High-Resolution forming system is designed for use with packaging grades of paper. This three-component system consisting of high-resolution drainage structures, Stepfoil™ technology, and high precision vacuum control provides the papermaker with excellent activity control across broad grade structures and different furnishes while ...

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Paper Machine Vacuum Systems - Convergence Training

Vacuum systems on paper and board machines dewater the stock as the sheet forms, dewater and clean the press felts, which, in turn, remove water from the sheet, and helps transfer the sheet between sections of the machine. This module describes the main functions of vacuum systems on paper and board machines, the safety hazards and safety ...

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Trim Squirt Technology - Kadant

The High-Resolution forming system is designed for use with packaging grades of paper. This three-component system consisting of high-resolution drainage structures, Stepfoil™ technology, and high precision vacuum control provides the papermaker with excellent activity control across broad grade structures and different furnishes while maintaining an open sheet.

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Optimizing Five Liquid Ring Vacuum Pumps on a Paper Machine

Industrial process operating loads and optimal set points are not usually accurately known at the time of design, so often there is significant mismatch between equipment and the process it serves. To overcome this uncertainty, designers typically oversize equipment. Over time, process changes and equipment efficiencies decline, so equipment might be operating less efficiently than at start-up.

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Modeling and Optimization for Konjac Vacuum Drying Based ...

To reveal quality change rules and establish the predicting model of konjac vacuum drying, a response surface methodology was adopted to optimize and analyze the vacuum drying process, while an artificial neural network (ANN) was applied to model the drying process and compare with the response surface methodology (RSM) model. The different material thickness (MT) of konjac samples (2, 4 and ...

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Optimizing Five Liquid Ring Vacuum Pumps on a Paper Machine

Industrial process operating loads and optimal set points are not usually accurately known at the time of design, so often there is significant mismatch between equipment and the process it serves. To overcome this uncertainty, designers typically oversize equipment. Over time, process changes and equipment efficiencies decline, so equipment might be operating less efficiently than at start-up.

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Adopting PDCA (Plan-Do-Check-Act) cycle for energy ...

Mar 01, 2017· The case analysis showed a 35% reduction in specific energy consumption (SEC) of one of the Paper Machine's (PM) vacuum system by the implementation of ESAs for vacuum optimization, generating an annual energy-saving of 0.3 GJ/t.

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PAPERMAKING BEST PRACTICES WITH VACUUM .

The vacuum system includes several sub-systems for vacuum control, air/water separation and vacuum pump seal water management. These systems can incorporate liquid-ring pumps, low vacuum fans, single and multi-stage centrifugal blowers, or hybrid configurations to complete a vacuum system. Generally, paper machines operate with little attention ...

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Energy saving in paper making process

Dec 20, 2016· (3) Paper machine vacuum system optimization: each machine has a vacuum pump and vacuum system, paper machine vacuum system consumption of power and power consumption of paper machine.

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Paper Machine Vacuum Systems - redvector

Vacuum systems on paper and board machines dewater the stock as the sheet forms, dewater and clean the press felts, which, in turn, remove water from the sheet, and helps transfer the sheet between sections of the machine. This module describes the main functions of vacuum systems on paper and board machines, the safety hazards and safety guidelines associated with vacuum systems, and the ...

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Vacuum System and Dewatering Optimization, PaperCon 2014

Gunnar Nicholson Award Herman L. Joachim Distinguished Service Award Paul Magnabosco Outstanding Local Section Member Award PIMA Executive of the Year Award TAPPI Fellows TAPPI JOURNAL Best Research Paper Award Young Professional of the Year Award Division Honors Membership Anniversaries

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Papermaking Best Practices With Vacuum-Dewatering Systems ...

Nov 21, 2017· VACUUM SYSTEMS. DOUG SWEET, P.E. When creating a long list of best practices relative to paper machine vacuum systems, they seem to fall into two classifications: Process and Management.We presented process best practices in the Sep/Oct issue of Paper 360°. Here we will look at management best practices.

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How To Optimize Pulping Method In Pulp And Paper ...

In view of the expanding paper market demand, in order to speed up the continuous optimization of pulping method in pulp and paper manufacturing process, many pulp and paper mills have invested in advanced pulping equipment such as multi-disc vacuum pulp filter and vacuum drum pulp washer, so as to continuously improve the production scale of ...

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Paper Technology Journal

Paper Machines Graphic [email protected] 2 21/06 In 1999 Gold East Paper in Dagang, China started up their PM 1 and PM 2 coated wood free grades lines supplied by Voith. Since then both paper machines, with a wire width of 10,400 mm, have con-tinually increased speed and production records. Dagang is a green-

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(PDF) Design equation for paper machine press sections

This work on modeling dewatering at the vacuum suction boxes of the paper machine, is based on previous work on modeling wet pressing. ... (real-time or faster), in process and control system ...

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optimization of wire vacuum - slideshare

Mar 03, 2014· Conclusion: There exists tremendous scope for energy conservation in paper machine wire part. Proper designing of wire table and optimization of vacuum play important role in energy conservation and wire life improvement. 19. THANK YOU D K Singhal [email protected]

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Fundamentals of Vacuum Technology

1 Preface Oerlikon Leybold Vacuum, a member of the globally active industrial Oerlikon Group of companies has developed into the world market leader in the area of vacuum technology.

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Performance Optimization of Paper Machine Clothing With ...

Performance Optimization of Paper Machine Clothing With Preventive Maintenance. ... causing bad vacuum control and breaks on the paper machine. ... in the dryer section can indicate a problem of plugged dryer fabric at that location or a failure of the anti-blow box system.

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OptNet: Differentiable Optimization as a Layer in Neural ...

3. OptNet: solving optimization within a neural network Although in the most general form, an OptNet layer can be any optimization problem, in this paper we will study OptNet layers defined by a quadratic program minimize z 1 2 zTQz+ qTz subject to Az= b;Gz h (2) where z2Rnis our optimization variable Q2R n 0 (a positive semidefinite matrix ...

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Dewatering Vacuum Pumps For Paper Machinery | Vooner

VPM provides a system approach to paper machine fabric conditioning to dewater paper to include the power of Vooner liquid ring vacuum pumps. To insure economic performance Vooner, VPM, offers performance testing of dewatering equipment such as vacuum boxes, showers, piping and vacuum pumps. VPM uses the orifice plate method for measuring ...

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PULP AND PAPER INDUSTRY

in the paper industry BAKONY Dewatering systems and equipment made of ceramic and plastic materi-als, repair and grinding service BELLMER KUFFERATH Fiber, reject and sludge dewatering systems; dandy roll for formation im - provement BELLMER LANG-HAFNER Hoods, air systems as well as steam and condensate systems for paper machines and industry ...

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Vacuum frying foods: products, process and optimization

the product, process and optimization of vacuum frying of foods. Vacuum frying system A vacuum frying system consists of three components, namely: a) a vacuum frying chamber; b) a refrigerated condenser; and c) a vacuum pump (Figure 1). The vacuum frying chamber is an airtight vessel provided with an oil heater and a frying basket.

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Paper Machine Vacuum System, Vacuum System In Paper ...

Paper machine vacuum system can effectively influence paper machine efficiency, paper sheet dehydration and press felt performance, so what's the factor will affect paper machine vacuum sysetem efficiency? Paper Machine Vacuum System Efficiency. 1. The sealing water becomes hot: The increase of the sealing water temperature (above 32.2~37.7 ...

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Vacuum system study demonstrates improvement potential .

Vacuum system study demonstrates improvement potential for optimal paper machine efficiency, flyer in Chinese Author: Valmet Corporation Subject: Valmet vacuum system study demonstrates improvement potential for optimal paper machine efficiency Keywords

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VACUUM SYSTEM DESIGN - CERN

VACUUM SYSTEM DESIGN A.G. Mathewson CERN. Geneva, Switzerland 1 . INTRODUCTION In this paper the basic terms used by the vacuum engineer are presented and some useful formulae are also given. The concept of bakeout is introduced and the physics behind it explained. However we will not dwell on the very basics of vacuum system design but

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Monitoring and Optimization of Vacuum Energy .

Monitoring and Optimization of Vacuum Energy Consumption of Paper Machine Net and Press Section Based on PLC . Wenming Ma. a,* and Wutao Lu. b. Xijing University, Xi.an 710123, China

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