rush drag paper machine

Paper Machine Design and Operation--Descriptions and …

This new book offers an update on current paper machine developments and operating practices and compares design approaches by major paper equipment manufacturers. …

How to Use MD/CD ratio to Cut Costs and Meet Quality Specifications

How to drastically reduce the time needed to undertake rush/drag trials. How confidence in rush-drag settings can be increased using a continuous measurement; How sensitive different paper properties are to changes in md/cd ratio. The typical variation in md/cd ratio experienced by commercial paper machines.

Fan pump | Paper machinery-paper making machine,paper …

The fan pump propels the dilute slurry of papermaking furnish towards the headbox of a paper machine. The pumps are designed in such a way as to minimize pulsation, since the goal is to keep the basis weight constant over time and avoid "barring".

Tips for Reducing Forming Fabric Drive Load

The calculated drag load (pli) can be checked against standards listed below for Fourdrinier machines. TABLE 1 is a list for fine paper grades and TABLE 2 is a list for packaging grade drag- load guidelines. There are no firm guidelines for gap formers, but diagnosing an excessive increase in drag load or excessive

Paper Machine Evaluation by Fiber Orientation Profile …

The most significant variable is the "rush/drag" relationship between headbox jet velocity and wire speed. Fiber orientation profiles become worse as rush or drag approaches …

Papermaking

Papermaking - Machines, Formation, Sheet: In a paper machine, interrelated mechanisms operating in unison receive paper stock from the beater, form it into a sheet of the desired weight by filtration, press and consolidate the sheet with removal of excess water, dry the remaining water by evaporation, and wind the traveling sheet into reels of paper. Paper …

EFFECT OF VELOCITY GRADIENT ON PAPERMAKING …

MG paper, paper machine, process control, strength properties INTRODUCTION Paper properties, which are mainly the ... from drag -7 m/min to rush +3 m/min, shown as a grey region, TSO was between ± 1.7° and curl – from 2.0 …

(PDF) Paper Machine Clothing · Second Edition

The quest for uniformity on a paper machine is traced over a ten-year period. Non-uniformity first manifested itself in paperback books that would not lay flat. ... Vacuums (may need to increase drainage on table) Rush/drag or jet/wire ratio Fabric tension (may be too low) Excessive fabric wear Fabric drainage capacity (may need to increase ...

FINAL REPORT Title: Headbox and Forming …

machine and cross-machine directions. Fiber orientation can be controlled by headbox rush/drag adjustment; although, formation will be best at lower MD/CD tensile ratio. The overall level of sheet strength properties (geometric mean) attained will be influenced by fiber properties and degree of refining and pressing.

United States Patent (15) 3,661,701 (45) May 9, 1972

CONTROLLING RUSH-DRAG INA PAPER MACHINE (72) Inventor: Abdul-Rahman A. Al-Shaikh, Mount Kisco, N.Y. (73) Assignee: Westvaco Corporation, New York, N.Y. ... METHOD AND APPARATUS FOR CONTROLLING RUSH DRAGINA PAPER MACHINE BACKGROUND OF THE INVENTION i. Field to Which the Invention Pertains In the …

Rescheduling on Unrelated Parallel Machines with Rush Order

In this paper, an event-driven complete rescheduling strategy is proposed in consideration of rush order insertion to a hybrid multi-machine production system. The impact of rush order is considered as a deviation cost and merged into the total cost when optimizing rescheduling. Genetic algorithm is adopted to optimize the rescheduling with …

METHOD AND APPARATUS FOR CONTROLLING RUSH-DRAG IN A PAPER MACHINE

Complete Patent Searching Database and Patent Data Analytics Services.

ITP Forest Products: Improving Paper Machine Efficiency …

Improving Paper Machine Efficiency Through On-Line Control of Stock Delivery, Headbox and Forming Hydrodynamics -- DE–FC36–99GO10416 Cyrus K. Aidun ... Tensile MD-CD Ratio vs Drag & Rush -20 -10 10 20 30 40 Tensile MD-CD ratio [ …

The Complete Guide to Paper Machines and Their Installation

Paper machines are the backbone of the paper production industry, converting raw materials into a wide range of paper products. Understanding the intricacies of automatic paper machines, the various types like the Fourdrinier machine, cylinder machine, and tissue machine, and their installation processes is crucial for ensuring efficient and …

Improving Paper Machine Efficiency/Productivity through …

This technology results in significant improvements in the performance and capital effectiveness of the paper machine (PM) for a fraction of the cost to replace a headbox. In this project we have developed and demonstrated the concept of generating axial vorticity to control the fiber orientation in the converging zone of the headbox, and …

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 ISBN: 0-969 This new book offers an update on current paper machine developments and operating practices and compares design approaches by major paper equipment manufacturers.

INSTITUTE OF PAPER SCIENCE AND TECHNOLOGY …

Paper Machine Evaluation by Polar Angle Profile Analysis Irwin M. Hutten Institute of Paper Science and Technology ABSTRACT Polar angles, as determined by the velocity …

UKEN RUSH MACHINE / FLICKER FUI-02

Contact info Fine Tools Trading LLC Head Office: DIP 2. PO Box 30139 Dubai, U.A.E

Online Strength Virtual Measurements used as a new paper …

Let's look at an example where the customer increased strength at no cost by changing the rush drag to optimize the fiber orientation in the paper. A precise sheet fiber orientation square point was achieved, keeping the strength well above target while also enabling the weight target to be reduced.

How to Use MD/CD ratio to Cut Costs and Meet …

In this webinar, discover how measuring and controlling md/cd tensile ratio in real time, using the PSM-4 on-line sensor, delivers incredible benefits. Find out: How to improve product performance by 3-5%. How to …

Effect of velocity gradient on papermaking properties

from drag -7 m/min to rush +3 m/min, shown as a grey region, TSO was between . ± 1.7° and curl – from 2.0 to 2.5 m-1. ... (MD) and cross-machine drection (CD) of paper sheets. The results ...

What influences the TSI Area and how does it …

In Paper Making we also talk about Drag and Rush. This is the Ratio between the Jet Speed and the Wire Speed. Drag = Jet Speed lower then Wire Speed. Rush = Jet Speed higher then Wire Speed.

Control of the Paper Making Subsystem–A Brief Review

technology, high speed paper machines have been developed for the manufacturing of high quality paper. The quality ... Rush/Drag is the ratio of the speed of the stock out of the orifice of the headbox at the bottom and speed of the wire (i.e. Fourdrinier machine). It is also known as jet to wire ratio and has a significant influence on

Easy-Cut XL – Rush Machinery

Rush Machinery offers the new Rush Easy-Cut XL Semi-Automatic Carbide Cut-Off Machine for quick and easy cutting of carbide flat stock up to 2" x 4" or rod and tool ends with diameters between 1/8" to 2". Also great for high speed steel. Built in the USA, the Rush Easy-Cut XL is fully enclosed and has semi-automatic or manual operation.

Retrocommissioning and Energy Efficiency Applying …

horsepower as the entire paper machine. This can be from 700 hp on a small, specialty machine, to 7000+ hp on a large linerboard machine. Paper machines and supporting processes are designed and installed based on expected ranges of production rates using specific furnishes, headbox consistency, chemistry, refining, retention, fabric design, etc.

Paper Machine Troubleshooting manual for paper makers

1. Paper Machine Clothing · Second Edition | 247 This chapter includes troubleshooting guides for the forming, pressing, and drying sections of the 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 …

DYNAMIC MODELING OF A PAPER MACHINE WET END

The first concern in the project was to build a dynamic model of the paper machine wet end to describe the distribution of fines, fillers and fibers throughout the wet end system.

CHAPTER! BACKGROUND

The regulation of rush/ drag and pond level are selected as controlled variables in advanced control systems due to the following reasons: 1) Rush/drag is a calculated variable and analog methods generally become inaccurate at high machine speeds; 2) Rush/drag and level interact each other, as shown in Figure 1.3. Unless

Measuring Paper Machine Performance

Measuring Paper Machine Performance Dick Reese Dick Reese and Associates, Inc. 5121 Edgerton Dr Norcross, GA 30092 (770) 448-8002 rareese@bellsouth. Paper Machine Performance Systems

dragracemachine website

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