Study on Paper Electromagnetic Drying Rate

2013 ◽  
Vol 680 ◽  
pp. 356-359
Author(s):  
Zheng Shun Wang ◽  
Zhao Hui Zhen
Keyword(s):  
High Speed ◽  
Energy Crisis ◽  
Drying Rate ◽  
Paper Machine ◽  
Paper Drying ◽  
Developmental Potential ◽  
Toilet Paper ◽  
Drying Technology ◽  
Steam Drying ◽  
Special Meaning

Paper electromagnetic drying technology is a new paper drying technology different from traditional steam drying. Today, environmental pressure deteriorating, energy crisis approaching, doing researches on paper electromagnetic drying technology has a special meaning, especially to high speed toilet paper machine which is truly needed and has a vast developmental potential. This thesis is based on electromagnetic dryer and steam dryer study. And the changes measured in the experiment at diverse temperatures and quantities in the experiment has shown a higher efficiency of electromagnetic drying technology than conventional steam drying technology.

scholarly journals Experimental Study on Super-Heated Steam Drying of Lignite

2011 ◽  
Vol 347-353 ◽  
pp. 3077-3082 ◽  
Author(s):  
Yong Chun Shi ◽  
Jie Li ◽  
Xuan You Li ◽  
Jing Wu ◽  
Mao Gang Wu ◽  
...  
Keyword(s):  
Power Plants ◽  
Experimental System ◽  
Drying Rate ◽  
Drying Process ◽  
Operation Conditions ◽  
Hot Air ◽  
Application Potential ◽  
Drying Technology ◽  
Two Stages ◽  
Steam Drying

This paper applies super-heated steam drying technology to improve the quality of lignite. A unique experimental system was built up. In order to obtain the optimum operation conditions, the drying kinetics was measured. The temperature range of super-heated steam was from 120 to 200°C. The results showed that the drying process of super-heated steam drying of lignite can be well depicted by two stages, as a constant drying rate stage followed by a falling drying rate stage. The comparison of drying process to the hot air drying showed the superior advantages of super-heated steam drying on safety, drying capacity and energy conservation. Analysis shows the huge application potential of lignite in power plants by means of the super-heated steam drying.

UG Simulation Design of Electromagnetic Dryer

2013 ◽  
Vol 680 ◽  
pp. 398-401
Author(s):  
Zheng Shun Wang ◽  
Zhao Hui Zhen
Keyword(s):  
Software Design ◽  
Electromagnetic Induction ◽  
Three Dimensional ◽  
Technical Requirement ◽  
Simulation Design ◽  
Paper Drying ◽  
Electromagnetic Heating ◽  
Dimensional Simulation ◽  
Drying Technology ◽  
Steam Drying

The electromagnetic technology of drying Paper is that we use the principle of electromagnetic heating to dry paper, which is a new paper drying technology and quite different from the traditional steam drying . This thesis is based on the principle of electromagnetic induction, combined with technical requirement of paper drying. We used the AutoCAD software design a laboratory drying device with electromagnetic, and analyzed various parts of the selection and structure, by using UG software solid modeling, assembly modeling and other modules design a three-dimensional simulation of the various parts of the electromagnetic dryer device. The simulation graphics shown that the simulation design of electromagnetic dryer is more success, which can meet the requirements of drying paper evenly.

Research Advance on the Drying Section of Paper Machine

2012 ◽  
Vol 591-593 ◽  
pp. 520-523
Author(s):  
Zhi Guo Chang ◽  
Ji Xian Dong ◽  
Jiang Miao Yi
Keyword(s):  
Paper Industry ◽  
Paper Machine ◽  
Paper Drying ◽  
Improvement Measures ◽  
Energy Consuming ◽  
New Type ◽  
Working Principle ◽  
Research Advance ◽  
Drying Technology ◽  
Drying Section

The drying section of paper machine is not only the major energy-consuming parts of the papermaking process, but also one of the main bottleneck restricting the speed, yield and paper quality. So the research on the drying section has attracted much attention at home and abroad. In view of the traditional steam dryer shortcomings, this paper first introduces two kinds of improvement measures —— the tubulator bar and the siphon which can improve the efficiency of the traditional steam dryer. With the development of the paper industry, domestic and international research on the new type of paper drying technology has achieved some success. Then, we analyse their working principle and characteristic, and conclude that multi-channel dryer has a broad research and application prospects.

Outbreaks Where Food Workers Have Been Implicated in the Spread of Foodborne Disease. Part 9. Washing and Drying of Hands To Reduce Microbial Contamination

2010 ◽  
Vol 73 (10) ◽  
pp. 1937-1955 ◽  
Author(s):  
EWEN C. D. TODD ◽  
BARRY S. MICHAELS ◽  
DEBRA SMITH ◽  
JUDY D. GREIG ◽  
CHARLES A. BARTLESON
Keyword(s):  
High Speed ◽  
Microbial Contamination ◽  
Potable Water ◽  
Hand Washing ◽  
Skin Damage ◽  
Foodborne Outbreak ◽  
Toilet Paper ◽  
Diarrheal Episode ◽  
Single Use ◽  
Food Workers

During various daily activities at home and work, hands quickly become contaminated. Some activities increase the risk of finger contamination by pathogens more than others, such as the use of toilet paper to clean up following a diarrheal episode, changing the diaper of a sick infant, blowing a nose, or touching raw food materials. Many foodborne outbreak investigation reports have identified the hands of food workers as the source of pathogens in the implicated food. The most convenient and efficient way of removing pathogens from hands is through hand washing. Important components of hand washing are potable water for rinsing and soaps to loosen microbes from the skin. Hand washing should occur after any activity that soils hands and certainly before preparing, serving, or eating food. Antimicrobial soaps are marginally more effective than plain soaps, but constant use results in a buildup of the antimicrobial compound on the skin. The time taken to wash hands and the degree of friction generated during lathering are more important than water temperature for removing soil and microorganisms. However, excessive washing and scrubbing can cause skin damage and infections. Drying hands with a towel removes pathogens first by friction during rubbing with the drying material and then by wicking away the moisture into that material. Paper rather than cloth towels should be encouraged, although single-use cloth towels are present in the washrooms of higher class hotels and restaurants. Warm air dryers remove moisture and any surface microorganisms loosened by washing from hands by evaporation while the hands are rubbed together vigorously; however, these dryers take too long for efficient use. The newer dryers with high-speed air blades can achieve dryness in 10 to15 s without hand rubbing.

scholarly journals Brief Review and Mathematical Modelling of Air Cushioned Pressurized Paper Machine Headbox

2018 ◽  
Vol 7 (3.4) ◽  
pp. 57 ◽  
Author(s):  
Parvesh Saini ◽  
Rajesh Kumar
Keyword(s):  
Mathematical Modelling ◽  
High Speed ◽  
Paper Industry ◽  
Paper Machine ◽  
Efficient Operation ◽  
Precise Control ◽  
Paper Machines ◽  
Day By Day ◽  
Paper Machine Headbox

Today, the requirement of high grade papers is increasing day by day. To cater the need of high quality papers, new high-speed paper machines are being developed constantly. The whole economy of a pulp and paper industry depends on the quality of paper produced, quality of paper depends on the efficient operation of the major part of paper industry – paper machine. Paper machine is the heart of paper industry and has many subsystems. One of the important subsystem of paper machine is Headbox.   To have the desired quality papers, efficient working of headbox is highly required. To have desired operation from headbox, its precise control is necessary. The precise modelling of headbox, leads to design of efficient controllers for its proper control to get the desired response. This paper presents the mathematical modelling of headbox along with a brief review of various research performed on headbox.  

Research in Compositions and Coloration Performance of Polyurethane Ink Absorption Coating

2010 ◽  
Vol 174 ◽  
pp. 498-501
Author(s):  
Xu Wei Hu ◽  
Lu Hai Li ◽  
Sheng Min Zhao ◽  
Peng Du ◽  
Wen Zhao ◽  
...  
Keyword(s):  
High Speed ◽  
Hard Segment ◽  
Water Resistance ◽  
Image Resolution ◽  
Drying Rate ◽  
Color Reproduction ◽  
Solid Density ◽  
Nano Alumina ◽  
Water Based ◽  
Different Content

Water-based polyurethane forms continuous and dense film after fully drying. Ink is lowly absorbed by PU film, affecting drying rate and color reproduction. In order to improve the absorption of ink on PU film, PU/nano alumina compound was prepared by adding nano alumina in PU and stirring at high speed. PU ink absorption coating was got by being coated on the substrate. The influences of different content of nano alumina to transmittance of coating and solid density of color blocks were researched. The influences of soft and hard segment of PU to image resolution and water resistance were also researched. It can be seen that transmittance reduces when content of nano alumina increases. Droplets spread less when using PU of hard segment and image resolution and solid density are also higher. At the same time, water resistance of solid blocks is much better when printed on PU of hard segment.

Research on Constant-Temperature Drying Test of Cotton Straw and Regression Analysis of Drying Rate

2012 ◽  
Vol 472-475 ◽  
pp. 1645-1651
Author(s):  
Jian Jun Hu ◽  
Sheng Qiang Shen ◽  
Ting Zhou Lei ◽  
Hao Huang ◽  
Quan Guo Zhang
Keyword(s):  
Regression Analysis ◽  
Constant Temperature ◽  
Initial Moisture Content ◽  
Drying Rate ◽  
Regression Equations ◽  
Drying Time ◽  
Drying Curves ◽  
Drying Technology ◽  
Drying Conditions ◽  
Two Stages

Constant-temperature drying tests for cotton straw under different conditions were performed with an integrated thermal analyzer, and the influence of different drying conditions on the drying process was analyzed. The process was divided into preheating stage, constant-rate drying stage, and decelerating drying stage. Regression analysis was conducted for drying curves at the latter two stages, and then the drying time at the critical point was determined. Regression equations of drying rate at these stages were produced. Research results showed that the decelerating drying stage of cotton straw included two decelerating intervals, and the best ending point of the drying of the cotton straw that had an initial moisture content of 56.1% and a drying temperature of 100°Cwas 600s, thus providing experimental data and reference for research on drying technology of straws.

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