• Used Paper Machines and Paper Machine Accessories .

    Paper Machines and Components. Perry Videx carries a large inventory of paper machines from headbox to winder. Many widths, weights and grades are available. Your source for paper machines manufactured by Andritz, Black Clawson, Beloit, Voith, Escher Wyss, and many more paper machine manufacturers.. As experienced used equipment dealers, our inventory of paper machines and paper machine ...

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  • Effect of the Dryer Fabric on Energy Consumption in the ...

    nergy consumption in the dryer section accounts for more than half of the energy consumed by the entire paper machine, as can be seen in Fig. 1. Rising energy costs have, once again, put the focus back on energy consumption in the drying section. Heat transfer from the condensing steam to the web is limited by a number of factors; namely,

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  • Paper-machines - Allimand

    The press section follows the formation section on the paper machine. Its objective is to remove as much water as possible from the mat before it is transferred to the dryer part. This is not only a fundamental stage for the sheet characteristics (porosity and surface appearance) but also economically, reducing steam consumption in the ...

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  • Complete Dryer Sections

    GL&V can supply dryer section upgrades from drive conversions and small additions to complete new dryer sections. Rebuilds are always custom designed and manufactured for the customer's needs. Rebuilds have encompassed anything from 400 fpm pulp machines .

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  • Paper machine drying | Valmet

    Valmet's dryer sections feature optimized steam consumption with effective ventilation and heat recovery for energy-efficient operation. As the efficiency of the entire machine is affected by the runnability of the dryer section, open draws are minimized and the wet web is well supported at the beginning of the dryer section.

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  • Paper Machine Drying - YouTube

    Visit https://goo.gl/laH7LD to view the full video and purchase access to our other Paper courses. On conventional paper and board machines, the energy requi...

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  • Papermaking PAPERMACHINE – PRESSING 1. INTRODUCTION

    dryness of the sheet entering the dryer section. It has a major impact on the structure and runnability of the paper and thus the operating efficiency of the machine (Wahlstrom, 1969). The dewatering capacity of a press section and the properties of paper depend on the design and the number of nips.

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  • Surplus Paper Equipment | Leading Supplier of Used Paper ...

    Surplus and Used Paper Equipment Sales - Browse our extensive online inventory of surplus paper machines and used paper equipment for the global Pulp and Paper Manufacturing Industry. Equipment Search Capabilities - If the equipment you need is not available .

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  • Papermaking Best Practices With Vacuum-Dewatering Systems ...

    Nov 29, 2017· Other problems can include vacuum pump reliability and maintenance problems contributing to downtime. Observations of almost 1000 paper machines in more than 320 mills in 11 countries have revealed several papermaking facts. These include: • You can get the sheet to the reel with a poorly performing vacuum system.

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  • Fabrics for every paper machine | Voith

    Dryer fabrics play a major role in the process of drying and paper machine efficiency Therefore, Voith has developed a full series of woven and spiral designs to suit all requirements. Optimal material choice and special designs support cleanliness, heat resistance and .

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  • Complete Dryer Sections

    GL&V can supply dryer section upgrades from drive conversions and small additions to complete new dryer sections. Rebuilds are always custom designed and manufactured for the customer's needs. Rebuilds have encompassed anything from 400 fpm pulp machines .

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  • Optimization for Energy Consumption in Drying Section of ...

    In order to improve the energy efficiency of the paper machine dryer section, deeper analysis and optimization of process parameters are necessary.A NLP optimization method is developed for ...

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  • (PDF) 35 Drying of Pulp and Paper - ResearchGate

    The multicylin d er dryer section of a paper mach i ne consi s ts of a nu m ber (up to 70) of larg e, hollow, cast iro n o r stee l cyl i nder s o v e r wh i c h th e we b passe s .

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  • Thermodynamic and Heat Transfer Evaluation of Pocket ...

    the paper machine drying section based on the mass and energy balance relationships written for paper, steam, moisture and cylinder dryer [19-21]. The simulation models can be utilized to evaluate the energy efficiency and heat recovery performance in the drying section of paper machines.

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  • GUIDELINES FOR Cleaning and Conditioning Paper Machine ...

    Optimum felt and press section runnability depends on maintaining "like-new" felt characteristics for a longer period of time. This can only be accomplished with an effective conditioning program. The type and use of a felt conditioning system has a pro-found effect on the runnability of the felt and the press section of the paper machine.

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  • 8 Paper Machine Troubleshooting - AstenJohnson

    paper machine. Although it is difficult to list all possible causes for all machine types, these lists can be used to provide guidance in troubleshooting most equipment. 8 1 Forming Section Troubleshooting Guide Symptom Areas to Consider Barring • Condition of rolls (vibration) • Seals on couch roll • Vibration on all machine elements

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  • Paper Machine Drying - Convergence Training

    On conventional paper and board machines, the energy required to dry the sheet to the desired moisture target at the reel is supplied by a series of rotating, steam-heated, dryer cylinders. These cylinders, or "cans," are grouped into multiple drive sections, which go progressively faster in order to adjust for machine direction stretch and to ...

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  • Troubleshooting Flooding of Paper Dryers

    10/25/2016· 8. Wedel, G. L. and Timm, G. L., "Drive Power and Torque in Paper- machine Dryers", TAPPI Technology Summit 2002, Tappi Press, Atlanta. 17. Kadant Johnson is a global leader in the design, manufacture, and service of dryer drainage systems, rotary joints, syphon systems, and related equipment for the dryer section of the paper machine.

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  • Air systems - ANDRITZ

    The PM hood keeps heat losses in the dryer section low and avoids condensation within the drying section. As a result, temperature and humidity inside the entire machine hall are improved. The PrimeDry Hood and its air system control the ventilation for the drying section with a uniform inflow of heated air in the surrounding of the paper web ...

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  • Walmsleys Limited - Index

    Walmsleys is a key engineering supplier to the worldwide paper industry, and in addition offers an engineering/design consultancy to other major industries. Our engineered solutions cover most processes on the paper machine.

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  • Steam and condensate system performance - explanation and tips

    Steam valves to atmosphere or to the condenser should be off under normal running conditions, except for the 1st dryer section blowthrough valve to the condenser. Condensate systems. Poor condensate removal can cause the ends of dryer cans to be hotter than the center due to more turbulence at the ends. This can cause moisture frown profiles.

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  • Voith | Dryer section

    In the dryer section, the remaining water is evaporated by the supply of heat energy. In this case the paper web is led over dryers that are heated from the inside by means of steam. At the end of the drying process, the paper has a residual moisture of approximately 2% to 9 % depending on the grade.

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  • paper machine manufacturers yankee dryer best dryers

    Class Paper Machine Components » Dryers » Cans And Sections Manufacturer Escher Wyss Part Number 41420 Size 110" Year Manufactured 1980 Qty 6 Description Escher Wyss Manchester (6) Dryer Can Section Rated 125 Psi At 450 F 110" Working Face 60" Diameter 112.5" With Rope Ring 115" Overall Width Enclosed Bearings With Rope System Doctors Felt ...

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  • STEAM AND CONDENSATE SYSTEM - Neles

    in the paper machine is to provide the steam for the drying. In the dryer part the moisture is evaporated as the sheet is pressed between a fabric and the hot drying cylinder. The process The steam and condensate system is a part of a paper machine. Past the press section, the paper sheet has a water content of about 60 %. The final drying is

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  • Voith | Dryer section

    In the dryer section, the remaining water is evaporated by the supply of heat energy. In this case the paper web is led over dryers that are heated from the inside by means of steam. At the end of the drying process, the paper has a residual moisture of approximately 2% to 9 % depending on the grade.

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  • GUIDELINES FOR Cleaning and Conditioning Paper Machine ...

    often made more severe by increased machine speed. All dryer fabrics should be periodically cleaned so that their original properties are retained as long as possible and their value is optimized. 18 JULY/AUGUST 2009 PaperAge paper machine clothing Correct shower oscillating speed can be calculated as: R = S x t L where R = Rate L = Loop length ...

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  • Paper Machine Drying - YouTube

    7/27/2015· Visit https://goo.gl/laH7LD to view the full video and purchase access to our other Paper courses. On conventional paper and board machines, the energy requi...

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  • R Rolling bearings in paper machines

    16. Paper web Fig 1 A modern paper machine can be more than 10 metres wide, 20 metres high and 200 metres long. Generally they consist of a forming or wire section, a press section, a drying section, a coating section, a calender and a reeler. Large machines incorporate as many as 1 500 bearings. Operating conditions for these bearings are

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  • Paper Machine Dryer Section Break, Paper Sheet Break In ...

    Paper Machine Dryer Section Break Solutions. 1. Increase paper sheet thickness; adjust the parallelism of a set of the first leading roller and the first dryer cylinder, in order to prevent the paper sheet leaning. 2. Due to speed ratio difference, check the silicon controlled failure. 3.

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  • Paper machine - Wikipedia

    The second section of the paper machine is the press section, which removes much of the remaining water via a system of nips formed by rolls pressing against each other aided by press felts that support the sheet and absorb the pressed water. The paper web consistency leaving the press section can .

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  • Breaks of the Web (Troubleshooting Guide)

    Breaks of the paper web (Dry-end, Size press, Wet-end) BREAKS of the paper web can have various causes, many of which have little to do with wet-end additives. For instance, the drives of the paper machine may be unstable or poorly adjusted. Some detective work may be needed to determine why the paper web is breaking.

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  • STEAM AND CONDENSATE SYSTEM - Neles

    in the paper machine is to provide the steam for the drying. In the dryer part the moisture is evaporated as the sheet is pressed between a fabric and the hot drying cylinder. The process The steam and condensate system is a part of a paper machine. Past the press section, the paper sheet has a water content of about 60 %. The final drying is

    Get price
  • GUIDELINES FOR Cleaning and Conditioning Paper Machine ...

    often made more severe by increased machine speed. All dryer fabrics should be periodically cleaned so that their original properties are retained as long as possible and their value is optimized. 18 JULY/AUGUST 2009 PaperAge paper machine clothing Correct shower oscillating speed can be calculated as: R = S x t L where R = Rate L = Loop length ...

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About us

Founded in 1982, Dekelon Paper Making Machinery Co.,Ltd. has always striven to meet and exceed customer expectations and continue to update and improve...

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