Pulp & Paper: Instruments and Solution for Pulp & Paper Industry

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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

ISC202G & PEEK sensor
ISC202G & 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

PH202G & Chemical sensor
PH202G & Chemical sensor

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
Chemical Pulping

Digester / Blow Line: Pulp Slurry Flow Measurement

Pulp Slurry Flow MeasurementOverview 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

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

YS1000 series
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

CX1000 / CX2000
CX1000 / CX2000

Overview and Problems

  • Control pulp density and flow
  • Need both functions of controllers and recorders
  • Need high reliability under harsh environment

Solution

  • All-in-one controller that integrates monitoring and recording functions
    6 embedded control loops, 20 measurement channels (CX2620)
  • Powerful display
    Standard variety screens for control monitoring
  • Math function
    Pulp dry mass flow can be calculated by Math function

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

Inductive Conductivity SensorsOur 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.

Dual Frequency Coil Excitation

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.

Manual Operation

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.

Dust-Proof and Water-Proof Front Panel

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

DPharp Silicone Resonant Sensor

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

ISC202G & PEEK sensorInductive Conductivity Transmitter: ISC202

  • Single stain-resistant sensor covers a wide measuring range
  • Process-independent customized temperature compensation
  • Fieldbus communication capability
  • Intrinsically safe version

PH202G & Chemical sensorpH Transmitter: PH202

  • Designed for two-wire system configuration
  • Fieldbus communication capability
  • Event logbook
  • Intrinsically safe version

YS1000 seriesSingle Loop Controller: YS1000 Series

  • Tow Programming Method
  • High reliability
  • Compact and Light Weight
  • Expandable I/O
  • Compatible with YS170 and SLPC

CX1000 / CX2000Control and Measurement Station: CX1000/CX2000 Series

  • Up to 6 embedded control loops, 20 measurement channels
  • Standard variety screens
  • Independent/synchronous program control
  • Built-in, standard Ethernet interface
  • Reliable hardware

ADMAGMagnetic 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

iab-app-dpharp-001-en.jpgPressure Transmitter: DPharp EJA/EJX Series

  • Best installed performance
  • Compact and rugged design
  • Multi-sensing digital sensor
  • SIL2 as standard (EJX)
  • Fieldbus communication capability

YTA110Temperature 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 DAQMASTER 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.

行业

相关产品&解决方案

ADMAG CA系列

ADMAG CA电磁流量计凭借陶瓷管外部设置的电极板,通过管道电容获取电动势。此外,流量计采用了一种卓越的高频励磁方式,使低电导率流体的噪声明显降低。

Data Acquisition with PID Control CX2000

CX defines the next generation in process control by fusing recording, control and networking into a single, compact product.

FLXA202/21两线制变送器/分析仪

FLEXA系列分析仪用于工业设施中的连续在线测量。它是灵活的两线制分析仪,可选择单传感器或双传感器测量。

ISC40电感式(环形、无电极)电导率传感器

ISC40型传感器与EXA ISC分析仪组合使用。在可靠性、准确性、可调性和性价比方面,该组合满足甚至优于对电导率测量的期望。 

YS1310

带报警的YS1310指示器是一款输入指示器,可以使用两个输入进行报警。可同时显示2个回路。两个输入均可以生成上限报警、下限报警、上上限报警和下下限报警,并且可以从总共6个接点输出任意报警的AND连接或OR连接。

YS1350/YS1360

YS1350是一款手动设定装置,可以手动输出设置信号至控制器等设备。YS1360是一款手动设定装置,可以手动输出操作信号至操作终端。

YS1500

YS1500指示控制器具有PID控制所需的基本控制功能。可以根据用户用途选择所需功能。

YS1700

YS1700可编程指示调节器可以通过运行用户程序为各种应用进行定制,并通过横河电机的专有技术、用户友好性和可扩展性提高可靠性。

YTA510无线温度变送器

高性能温度变送器YTA510接收热电偶、RTD、欧姆或DC mV输入信号。该变送器通过无线信号传输过程变量以及设定参数。该变送器采用内置电池,由于无需硬接线,因此可降低安装成本。通信规格以ISA100.11a协议为基础。

pH和ORP传感器

pH电极和传感器是进行pH值测量的传感部分,有伸缩式、流通式、浸入式和直插式等多种安装选项。选择合适的pH电极/传感器对优化测量结果至关重要。

单回路控制器

单回路控制器从传感器接收温度、流量、压力和其他类型的测量读数,并向阀门等控制元件发送相应指令,以便将这些值保持在期望范围内。

现场无线

无线解决方案的灵活性可减少对基础设施的投入,同时可以对工厂运营有更深入的了解。

电磁流量计

横河电机在电磁流量计方面的经验已经有数十年了。我们的电磁流量计为大多数地区的工业用途提供了灵活的配置。

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