• Yankee dryer operation and maintenance - Valmet

    The Yankee dryer is one of the most essential parts of the tissue machine. This pressure vessel serves as a base for creping, pressing and drying of the paper sheet. Because of its importance to the tissue-making operation, mills should provide regular maintenance services to the Yankee dryer to maintain high runnability and ensure top-notch ...

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  • Inspection, Repair, and Alteration of Yankee Dryers

    A Yankee dryer is an assembly of several large gray cast-iron parts (shell, heads, multi-piece center shaft, and journals). The shell is commonly made to ASME Code Section VIII, Division 2, using SA-278, Class 30, 40, 50, or 60 gray cast-iron material and internally may be of smooth-bore or ribbed construction. Heads, center shafts, and ...

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  • Chemical technology breakthrough targets significant ...

    The Yankee Dryer reflects the sum total of all the profile and moisture variables of a paper machine. This makes the Yankee Dryer coating package the last opportunity to achieve targeted sheet specifications for the finished product. It is at the core of determining the endpoint of sheet characteristics and machine production uptime.

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  • Paper Machine Dryer Section - Paper Mill Drying Sections ...

    Paper Machine Dryer Section Even after passing the paper from entire Press Section, Paper remains still wet hence it requires to eliminate remaining water which can only be done through the application of heat. This is carried out by Paper Machine Drying section consist of a series of steam heated cylinders varying in diameter.

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  • Papermaking PAPERMACHINE – DRYING Introduction

    Paper machine dryers have been modelled using computers and rigorous application of heat and mass transfer principles. However, there is often a need for some simple estimates of dryer sections of paper machines. In this case, data compiled from industry averages are frequently used. The TAPPI drying rates shown in Figure 14 are one source.

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  • Best practices for Toscotec steel Yankee dryer maintenance ...

    Sep 05, 2019· Maintenance managers and supervisors in tissue mills are required to work to budget and cut the costs of maintenance wherever possible. An efficient management of your TT SYD (Steel Yankee Dryer) helps reduce maintenance costs and avoiding the risk of emergency stops. What to do to reduce the maintenance cost of your TT SYD: 1.

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  • Steel Yankee - ANDRITZ

    Steel Yankee. With diameters up to 26 ft. and shell lengths up to 7.4 m, ANDRITZ is the technology leader for large steel Yankees. These high performance drying cylinders are made entirely of steel, resulting in greater safety and better machine performance than cast Yankees.

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  • Best Lubrication Practices for the Paper Industry

    Also, paper machines for the production of various products include Yankee cylinders in the dryer section. Several meters in diameter, Yankee cylinders are heated by high-pressure steam that helps dry the paper web as it's pressed against the cylinder. In the dryer section, the enemy of bearings and lubricants is both heat and water.

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  • Sophisticated Technology Yankee Dryer Used For Paper ...

    Factory price paper kraft machines spare parts Yankee drying cylinder is an necessary spare part of paper making machine. It is used in drying part of a paper production line. Working with hot steam from steam boiler, dryer cylinder dry wet paper sheets, then the dry paper .

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  • Yankee dryer failures - An overview to improve tissue ...

    In recent years, as companies have sought to make ever greater quantities of tissue at ever higher quality from a given machine, increasing demands have been placed on the Yankee dryer. The largest Yankees used in tissue production are now 18 feet in diameter (5.5 m), with face widths over 300 inches (7.6 m) and speeds in excess of 7,000 feet ...

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  • Paper Machine Design and Operation--Descriptions and ...

    "Paper Machine Design and Operation--Descriptions and Explanations" By Gunnar Gavelin 1998., 222 pp., Published by Angus Wilde Item Number: 08AWPMD IS BN: 0-9694628-2-4 This new book offers an update on current paper machine developments and operating practices and compares design approaches by major paper equipment manufactur ers.

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  • Paper Machine Yankee Dryer Cylinder

    Paper Machine Yankee Dryer Cylinder. A&C Machinery is professional mineral processing equipment manufacturer in the world, not our equipment has the excellent quality, but also our product service is .

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  • The Basics of Creping in the Tissuemaking Process

    Figure 1 Dry end of tissue machine and major components Yankee Cylinder (Yankee dryer) Steam heated rotating (circumference speed ca. 30m/s) pressure vessel usually 14' to 18' diameter and slightly wider than the full width of the sheet. It firstly forms the counternip to the press roll or rolls, then dries

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  • Toscotec | Products - Tissue Machines: Toscotec

    Toscotec customizes the design of its TT Hood based on the customer's needs and the overall drying configuration of the tissue machine, including the Steel Yankee Dryer. Steam and Condensate System As an auxiliary system of the Steel Yankee Dryer, Toscotec's Steam and Condensate System is optimized to operate in association with TT SYD to ...

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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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