Pulp & Paper Plant for the World Process for Fundamental Materials, Requires Effective Production with vast Operational Excellence
Challenges in the pulp & paper plant
Continuous technology improvement is ongoing in the pulp & paper industry to obtain the best possible performance. The improved plant performance translates to the higher quality improvement and lower cost, and simultaneously environmental friendly plant operation.
In the pulp & paper plant, there are many critical applications to measure the severe process condition, such as corrosive chemicals, aggressive pulp slurry with extremely high temperature and pressure condition. And stable and accurate measurement and control in these severe process condition and hash environments is the key to optimize the process control and the performance of plant operation.
As your best solution partner
For many years, Yokogawa has developed the process measurement & control product line-up with the collaboration with pulp & paper industry based on the process knowhow and experiences.
Yokogawa's wide and powerful sensors line-up are available with ''best-fit-model selection'' for every process in the pulp & paper plant, and delivers stability, precision, robustness in process measurement even under the challenging application such as digester and washer in chemical pulp plant. The high performance and intelligent controller helps to achieve higher quality production control in the pulp and paper.
Safe and Realizable Plant Operation
The predictive diagnostics availability of sensors delivers the predictive maintenance capability. The combination of the reliability of field-proven technology, and the latest technology of intelligent diagnosis strongly support higher level of safe and reliable plant operation at low cost.
Why buy Yokogawa?
The reliable and accurate measurement & control with Yokogawa's sensors and controllers support to achieve the dual aim of the high quality production at low cost and environmental friendly plant operation. In addition, the Yokogawa's experienced project handling and service capability in the pulp & paper industry support the successful project execution and life-cycle optimization in your plant.
Washer: Monitor Filtrate Liquor
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| FLXA202 & PEEK sensor |
Overview and Problems
- Filtrate conductivity monitor
- Existing electrode type conductivity sensors are easy to clog
Solution
- Wide measurement span
- No clogging of black liquor
Benefits
- Fast response
- Low maintenance cost and time
Bleaching filtrate: Monitoring pH Value
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| FLXA202 & PH4C |
Overview and Problems
- Excessive Cl2O weaken paper intensity
- Existing residual Chlorine deteriorate the electrode
Solution
- Special anti-corrosive glass membrane
- Special anti-corrosive structure of Ag ion trap
Benefits
- High accuracy to improve paper intensity
- Low maintenance cost and time
Digester / Blow Line: Pulp Slurry Flow Measurement
Overview and Problems
- Slurry noise (10 wt% pulp slurry)
- High abrasive fluid (solid material)
Solution
- Dual frequency excitation
- Standard high frequency 75 Hz
- Optional high frequency 160 Hz
- Ceramics lined AXF
- PFA Lined AXF with metal hat earth-ring
Benefits
- Stable and accurate measurement under aggressive slurry
- Leak-free ceramic liner construction
- Longer life-time by robust design
Adhesive Fluid Measurement
Overview and Problems
- Adhesive chemicals
- Wood resin adhesion
- Dye adhesion
Solution
- ADMAG CA
- Mirror finished AXF
- Ceramics lining
- PFA lining - Predictive electrode coating Diagnostics function
Dryer: Pressure Control
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| YS1000 series |
Overview and Problems
- Steam pressure control in drying process
- Renewal demand for obsolete controllers
- Need centralized data monitoring
Solution
- Easy to use
Color LCD display with a wide variety of screens includes meter display that is suitable for the replacement of conventional controllers - Control output backup function
Dual CPU & Hard manual - Remote data monitoring via Ethernet
Benefits
- Safe and stable control at low cost
- Less engineering for replacement
YS1000 series is available also for other processes in pulp & paper industry.
Stock Preparation: Density Control
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|
SMARTDAC+ |
Overview and Problems
- Control pulp density and flow
- Need both functions of controllers and recorders
- Need high reliability under harsh environment
Solution
- SMARTDAC+ recorder can be manipulated connected UTAdvanced controllers through the RS485 communication by touch panel operation*
- Custom display
You can make graphic objects which can be shown stock preparation process* - Powerful calculation function
Pulp dry mass fow calculation and other sequential control for stock preparation can be realized by powerful embedded calculation functions*
*Mandatory options: /C3,/CG and /MT (SMARTDAC+)
RS485 communication (UTAdvanced)
Benefits
- Integration of controller and recorder brings cost saving
- Dust-proof and water proof front panel (IP65, NEMA No.250 TYPE4* compliant)
*Except external icing test
Technologies Commit Users' Benefits
Our Goal
Our shared goal is customer satisfaction through operational excellence.
Yokogawa has brought true innovations to industry. We are committed to ensuring accuracy, reliability, and safety of your production system throughout your business life cycle. Our comprehensive solutions and expertise help you achieve more results with less total costs of ownership. Below key technologies shall aim for your operational excellence.
Inductive Conductivity Sensors
The ISC sensors use a high performance engineering plastic of PEEK (polyetheretherketone) that provides abrasion and corrosion resistance.
The sensor has a large bore (17mm) for optimal resistance to fouling processes and when properly installed ,the flow will keep the sensor clean, to help avoid measuring errors. This large bore also allows quick response even on low flow measurement. Also available upon request is a PFA lined sensor that provides excellent heat and chemical resistance.
Dual Frequency Coil Excitation
Magnetic Flow Meters measure flow volume with Faraday's law. The frequency of excitation current given to coils affects in the measurement accuracy and response time. Dual Frequency Coil Excitation is Yokogawa's original technology to ensure ± 0.35 % accurate measurement as well as 0.1 second fast response simultaneously.
Our signal processing technique enables us to bring the benefits of an AC & DC magnetic flow meter into a single magnetic flow meter.
Manual Operation "Hard Manual"
Independent manual override is built into the control circuits, ensuring that control output can continue even when a control circuit including the CPU experiences a problem.
Dust-Proof and Water-Proof Front Panel
The front panel has a dust-proof, water-proof design which is compliant with the IEC529-IP65 and NEMA No.250 TYPE4* standard. This structure provides good protection for the recorder's internal components and the removable storage media drive mechanism.
*Except external icing test.
DPharp Silicone Resonant Sensor
DPharp Pressure Transmitters with digital silicon resonant sensor delivers the maximum benefits from the elasticity of the single crystal silicon material while enhancing sensitivity and repeatability. The properties of the resonators remain constant over time. This makes DPharp the ideal pressure sensor for harsh industrial automation environments. DPharp delivers stability, repeatability and reliability that you can rely on.
For Your Operational Excellence
Inductive Conductivity Transmitter: FLXA202
- Single stain-resistant sensor covers a wide measuring range
- Process-independent customized temperature compensation
- Fieldbus communication capability
- Intrinsically safe version
pH Transmitter: FLXA202
- Designed for two-wire system configuration
- Fieldbus communication capability
- Event logbook
- Intrinsically safe version
Single Loop Controller: YS1000 Series
- Tow Programming Method
- High reliability
- Compact and Light Weight
- Expandable I/O
- Compatible with YS170 and SLPC
Control and Recording Devices: SMARTDAC+ Recorder Series / UTAdvanced Controller Series
- Variety screen with touch panel operation
- Robust data recording and SD card available
- Expandability of control and measurement modules
- Powerful control function
Magnetic Flow Meter: ADMAG AXF Series
- Best-in-class performance with dual frequency excitation method
- Predictive electrodes adhesion diagnostics
- Variety of liners & electrode materials
- Fieldbus communication capability
Pressure Transmitter: DPharp EJA/EJX Series
- Best installed performance
- Compact and rugged design
- Multi-sensing digital sensor
- SIL2 as standard (EJX)
- Fieldbus communication capability
Temperature Transmitter: YTA Series
- High resolution, high stability and high versatility
- Dual compartment housing for harsh environments
- SIL2 safety as standard feature
- Fieldbus communication capability
Subject to change without notice.
All Rights Reserved, Copyright© 2008, Yokogawa Electric Corporation.
ADMAG AXF and SMARTDAC are registered trademark of Yokogawa Electric Corporation.
DPharp is a trademark of Yokogawa Electric Corporation. Ethernet is a registered trademark of Xerox Corporation.
Other company names and product names appearing in this document are registered trademarks or trademarks of their respective holders.
Industries
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Pulp & Paper
The paper and pulp industry is highly competitive and must meet ever-changing market needs. Yokogawa helps realize energy-efficient plants which are globally sustainable.
Related Products & Solutions
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2-Wire Transmitter/Analyzer FLXA202
The FLEXA™ series analyzers are used for continuous on-line measurements in industrial installations. With an option for single or dual sensor measurement, they are the most flexible two-wire analyzer available.
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2-Wire Transmitter/Analyzer FLXA21
The FLEXA™ series analyzers are used for continuous on-line measurements in industrial installations. With an option for single or dual sensor measurement, they are the most flexible two-wire analyzer available.
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ADMAG AXF
The AXF magnetic flow meter is a sophisticated product with outstanding reliability and ease of operation, developed on the basis of decades of field experience. Based on FOUNDATION™ Fieldbus specifications, AXF Fieldbus Magnetic Flow meter models offer more flexible instrumentation.
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ADMAG CA
The ADMAG CA magnetic flow meter adopts a system to pick up the electromotive force generated in a fluid by electrodes provided outside a ceramic pipe through the capacitance of the pipe. In addition, the flowmeter employs a prominent high-frequency excitation method that reduces flow noise in low conductivity fluid.
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Inductive (Torodial, Electrodeless) Conductivity Sensor ISC40
The model ISC40 sensors are designed for use with the FLEXA ISC analyzers. This combination exceeds all expectations for conductivity measurement in terms of reliability, accuracy, rangeability and price performance.
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Mid-level UT55A/UT52A
The UT55A and UT52A temperature controllers employ an easy-to-read, 14-segment large color LCD display, along with navigation keys, thus greatly increasing the monitoring and operating capabilities. A ladder sequence function is included as standard. The short depth of the controller helps save instrument panel space. The UT55A/UT52A also support open networks such as Ethernet communication.
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Multi Channel 4-Wire Analyzer FLXA402
The FLEXA™ series analyzers are modular-designed analyzers used for continuous online measurements in industrial installations. They offer single or multi-sensor measurement.
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Touch Screen Paperless Recorder GX10/GX20
The SMARTDAC+TM GX10/GX20 is a panel mount paperless recorder with a modular architecture on the back panel and has a data logging function to acquire the required data. By supporting not only I/O but also many communication protocols, you can connect to various devices. GX utilizes AI. Supporting FDA 21 CFR Part11 and AMS2750E/NADCAP.
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YS1310
The YS1310 Indicator with Alarms is an input indicator that has alarms with two inputs. Two loops can be displayed simultaneously. A high limit alarm, low limit alarm, high-high limit alarm, and low-low limit alarm can be generated for each of the two inputs, and the AND connection or OR connection of arbitrary alarms can be output from a total of 6 contacts.
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YS1350/YS1360
The YS1350 is a manual setter that allows for manually outputting setting signals to controllers and the like. The YS1360 is a manual setter that allows for manually outputting operation signals to operation terminals.
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YS1500
The YS1500 Indicating Controller incorporates fundamental control functions required for PID control. Necessary functions can be selected in accordance with the user's purpose.
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YS1700
The YS1700 Programmable Indicating Controller can be tailored for various applications by running a user program, and offers high reliability thanks to Yokogawa's proprietary technology, user friendliness, and expandability.
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YTA110/310/320 Temperature Transmitter
The YTA110/310/320 series is Yokogawa's base traditional temperature transmitter in the field-mount transmitter line.
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YTA510 Wireless Temperature Transmitter
The high performance temperature transmitter YTA510 accepts Thermocouple, RTD, ohms or DC mill volt inputs. The transmitters transmit not only process variables but also the setting parameters using wireless signal. The transmitters run on internal batteries, and the installation cost can be decreased since hard-wiring is not required. The communication is based on ISA100.11a protocol specifications.
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Field Wireless
The flexibility of wireless solutions enables less investment in infrastructure while providing greater insights into plant operations.
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Magnetic Flowmeters
Yokogawa's experience with magnetic flowmeters spans decades. Our magnetic flow meters provide flexible configurations for industrial use in most areas.
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pH and ORP Sensors
pH electrodes and sensors are the sensing portions of a pH measurement. Various installation options including retractable, flow thru, immersion, and direct insertion. Proper pH electrode/sensor selection is critical for optimal measurement results.
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Single Loop Controllers
Single loop controllers receive temperature, flow rate, pressure, and other types of measurement readings from sensors and send corresponding instructions to control elements such as valves in order to maintain these values within a desired range.
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Temperature Transmitters
Yokogawa offers a full line of temperature transmitters that are head-mounted, panel-mounted, or field-mounted.