|JAPAN TAPPI JOURNAL Vol.61
September 2007 Abstracts
Perfect Retrofit on Quality Improvement at Stora Enso Kabel OMC 5
Voith Paper Automation Japan Ltd.
The start-up of the Stora Enso Hagen Kabel OMC5 was in 1980. The
applicator roll coaters with blades were changed in two steps to
increase the operating speed of the OMC 5. The 2 precoaters were
equipped with Voith SpeedCoaters in 1999. In 2001, as a further step,
the applicator roll coaters for top coating were further supplemented
by 2 Voith JetFlows.
As part of its consistent further development, Voith Paper now supplied
the new quality control technology. On February 9, 2005, the quality
control system was converted and the four coaters were equipped within
only three days.
With this retrofit, the OMC5 now operates on the basis of state-of-the-art
control and measuring technology.
Development and Results of Latest Energy Saving Screens
- Introduction of MAXFlow and New GranFlow -
Aikawa Iron Works Co., Ltd.
Since the resource and energy saving becomes the challenge
for the pulp and paper industry, energy saving is the most important
factor in the intense energy consuming industry. We have succeeded
to develop two kinds new screen to meet the requirements.
Efficient Mixing of Papermaking Chemicals with TrumpJet™ System
- Without Any Fresh Water -
Wetend Technologies Ltd.
Wetend Technologies Ltd has invested during past years
on development of chemical and additive mixing into stock close
to headbox. A TrumpJetTM jet injection and mixing system for papermaking
additives eliminates completely additive post dilution with fresh
water in PM Approach system process. Additives are mixed effectively
into the process by exploiting circulated headbox feed stock. The
system gives considerable energy savings as well as reduction of
CO2 emission case by case. Overdosing of additives will be also
avoided. This results to chemical savings. About 150 systems are
already in operation world wide.
The Latest Turn-Up System by Water Jet (Paprima,
KGK Engineering Corp.
Paper mills have been long after the turn-up efficiency
improvement and subsequent paper loss reduction. Our full automatic
“Reel Jet” & “Reel-Jet S” turn-up system (Paprima Industries
Inc., Montreal, Canada) uses 2 until of ultra high pressure water-jet
cutting head (1300-1500 bar/20cc per Tune-up) which run fast (2m/sec)
to their waiting position each side of the line to get the sheet
expanded to its full width keeping a completely uniformed wrapping
both ways from the center, immediately after the tail has got caught
by a new spool with the help of an air-coanda effect of a specially
designed gooseneck. Thus, “Reel Jet” & “Reel-Jet S” makes
it possible to execute turn-ups failure free in such a shorter
time span as 2 seconds since the issure of turn-up command via
DCS until the two heads come back to their park-positions. Also,
its beautifully balanced and even wrapping on a spool can release
the reel part from vibration and noise related problems.
Its sales has been expanding among big scale world famous paper
machines in Europe and North America, and they are quite satisfied
with its overwhelmingly nice performance to cut paper loss and
subsequently to improve productivity remarkably. Hereunder, we
are going to explain about its structure and performance.
Improved Runnability with TopBrane
Mantijn van Leeuwen
DSM Hybrane BV
A range of new Hyper-branched products has been introduced
by DSM under the brand name TopBrane for applications in paper
coating. TopBrane products show low viscosity in use, due to their
hyperbranched structure and high performance at low concentration,
due to their high functionality. TopBrane products can be used
to improve runnability of coaters and reduce the total cost of
operation. This paper shows an application example on Metered Size
Press coaters for production of LWC papers. Using TopBrane enables
the paper mill to effectively use more starch in the paper coating
formulation or apply more coat weight without experiencing operational
problems like misting, pilling and spitting. Using our TopBrane
products to reduce cost can achieve a reduction of total cost of
coating chemicals (binders and additives).
Learning Classifier "SmartLearn®"
Surface Inspection Systems Division, COGNEX K.K.
The Cognex SmartLearnR is a new classification software
tool set for SmartViewR web inspection system. SmartLearn was designed
such that the latest learning classification technology can be
combined with expert knowledge of each application. It has long
been known that one single classifier cannot be optimum for every
material, every process and every production line. Furthermore,
learning classifiers alone do not provide the best result. SmartLearn
provide the combination of the learning classification technology
and real-time multi-step classifier. SmartLearn dramatically improves
defect classification accuracy.
Energy Management Control System [Enemap]
Hiroto Abe and Kentaro Ohara
Energy Group, Solution Promotion Dept., ETS Development Div.,
Yokogawa Electric Corporation
The energy management control system “Enemap” is a
software package that predicts the demand for energy by the archived
operational data, the weather forecast data and so on, and leads
the optimal operation plan of equipments and the most effective
combination of the energy such as electric power, gas, and heavy
"Enemap" not only aschieves energy saving and environmental
load reduction but also supports daily plant maintenance operation
an enhancement of operation management efficiency.
This paper describes the function and the application example of
An Introduction of Biomass Utilization Methods of JFE Environmental Solutions
- Application of JFE-Babcock & Wilcox Volund Biomass Gasification
Technology Combined Heat and Power Plant to Paper Industry -
Koji Omata and Kohei Nishimura
JFE Environmental Solutions Corporation
Recently, effective use of the biomass has been paid
attention from a point of view of the global warming prevention
and recycling society formation.
JFE Environmental Solutions Corporation has advanced a development
for profit use of biomass, and now we have various types of technologies.
In this paper, we introduce the “JFE-Babcock & Wilcox Volund
Biomass Gasification Technology combined Heat and Power Plant”
that can contribute to the reduction of CO2 emission and the saving
of fossil fuel by utilizing gas and tar converted from biomass.
New Technology of Rotary Consistency Product Uses the FieldCare
System Tool for Device Condition Check
Pulp & Paper Business Unit, Field Systems Division, Metso Automation
Metso has been well known about shear force technology.
With our tradition of 50 years experience the number of shipment
has over 53,000 transmitters of consistency.
Our blade transmitters have set industry standards since launching
of Pulp-EL, our first electronics blade transmitter back in 1977,
followed with Smart-Pulp 1995, which was the first microprocessor
based blade transmitter on the market with extensive calibration
Therefore we announce our latest product of kajaaniROTARY and FieldCare system
Semi-automatic Ream Feeding System
Robot and Environment Div., SERVOARM Co., Ltd.
Servoarm Co., Ltd. is an enterprising company that
makes the best use of its long and cultivated hydraulic and electronic
control technology to develop truly useful and problem solving
devices to meet the particular needs of their customers. The company’s
primary goal is to benefit the customer by improving both their
work environment and productivity with eco-friendly, labor saving
In the finishing process, many factories still depend on manual
labor for sorting and feeding the reams to the wrapping process
due to technical problems with existing systems and the high investment
cost for fully automated systems. The newly developed Semi-automatic
Ream Feeding System eliminates the need for hard physical work
and offers a cost effective, labor saving production process. To
truly serve our customers, we offer unique custom-made systems,
designed to match their existing systems and peripheral devices.
Although there were many problems in the ream feeding process by
manual labor, the following effects and merits have been obtained:
1） Increased productivity and operating cost cuts
2） Workers relieved from hard manual labor
3) Chances of occupational hazards such as backache are lessened
4) Friendly work environment for elderly persons
Close collaboration with our customers is the key to new developments,
and we at Servoarm continuously strive to develop new and useful
devices to actively serve the paper making industry.
Proposal of MARSDEN IR DRYER System
Industrial Machinery Dept., ITOCHU SANKI CORPORATION
The MARSDEN GAS infrared dryer is an epoch-making, large-scale infrared
ray’s heater that the Marsden Co. in the United States developed. This is a large-scale
infrared ray’s heater of highly effective that uses the ceramic fiber and low
pollution. This has a lot of features compared with a past infrared rays dryer
and can adjust to a wide usage.
This chapter will explain the performance and the effect of MARSDEN system that
our company sells in detail.
Alkali Pre-treatment for the Bioethanol Fuel Production from Woody Biomasses
- Part1: Soda Cooking Conditions as an Alkali Pre-treatment -
Tsutomu Ikeda, Tomoko Sugimoto, Masanobu Nojiri, Kengo Magara, Shuji Hosoya and
Department of Biomass Chemistry, Forestry and Forest Products Research Institute
Bioethanol fuel for motor vehicle use is currently produced from
sugar cane and corn starch. However, the production costs of such crops in Japan
are much higher than in Brazil and North America. Therefore, Japanese bioethanol
fuel production from such crops is very limited. On the other hand, lignocellulosic
biomasses, especially woody biomasses, are abundant resources and large amounts
of low-cost woody biomasses are available for the bioethanol fuel production
in Japan. Bioethanol is produced from the fermentation of glucose and some oligo
sugars. However, cellulose, which is the most abundant carbohydrate in wood,
is a polymer of glucose linked by s-1, 4-glucosidic bonds and cannot be fermented
by yeast directly. Therefore, hydrolysis which converts cellulose to glucose
is required for bioethanol fuel production from wood. In response, we have developed
a new bioethanol fuel production process using alkali cooking and enzymatic hydrolysis
as a pre-treatment. In this work, we discuss suitable soda cooking conditions
for producing bioethanol fuel from wood.
Sugi wood contains more lignin, but less carbohydrate than does eucalyptus wood.
However, the xylose content of eucalyptus, which comes from hemicelluloses, is
higher than that of sugi; therefore, the overall hexoses contents of both sugi
and eucalyptus are similar. In the present study, a relationship was investigated
between the lignin contents and the enzymatic digestibility of sugi soda pulps.
As the lignin content decreased, the enzymatic digestibility increased. However,
the enzymatic digestibility of pulps reached mostly 100% without complete lignin
removal. Delignification was improved and the pulp yields were increased by the
addition of 1, 4-dihydro-9, 10-dihydroxyanthracene disodium salt (AQ) to the
soda cooking. Soda cooking with AQ around H-Factor (HF) 3000 were the best conditions
for alkali pre-treatment of sugi for bioethanol fuel production. On the other
hand, soda cooking with AQ around HF 350 were the best conditions for eucalyptus.
Keywords: bioethanol, lignocellulosic biomasses, soda cooking, AQ, pulp