Tuesday, October 24, 2017

PAPER MACHINE - GAIN TOTAL CONTROL

The new generation of control and monitoring system, developed by Amtech Electronics (India) Ltd, integrates the operation of sectional paper machine.


SCADA (Supervisory control and data acquisition) system provides the complete control and monitoring of whole sectional paper machine with auxiliaries control. It integrates the control system of sectional paper machine and all auxiliary control in approach flow.

Features
  • Monitoring and controlling of Sectional paper machine
  • Monitoring and controlling of approach flow and auxiliary
  • Monitoring and visualization of all the interlocks
  • Proactive action based on the running load to prevent damage of mechanical system
  • Precise and accurate control of machine synchronization
  • Real time trending of various critical parameters
  • Historical data for various parameters for troubleshooting
  • Alarming and reporting
  • Remote monitoring and SMS/Email functionality
  • Factory - tested integration
  • User - friendly Mimic for Monitoring and Controlling
Benefits
  • Centralized control and monitoring
  • Easy troubleshooting
  • Precise control of approach flow increases quality of paper
  • Monitoring and action on early detection of load of auxiliary reduces damage of mechanical system
  • Real time data helps to tune various parameters for better utilization of steam and power, which reduces cost of paper making
  • Remote monitoring and SMS/Email functionality provides up to date data to plant personnel and top management
  • Expandable system for EMS- Energy monitoring System
  • Appropriate displays are provided to assist with pin-pointing any faults
  • Quick and safe commissioning
  • Minimized maintenance costs
  • Qualified after-sales service with Amtech’s assistance


Cement Industry – Save energy in Kiln Application

The new generation of control system, developed by Amtech Electronics (India) Ltd, integrated the operation of Kiln application in cement industries along with variable frequency drive and control.


For the kiln application, DC motor and drive are used due to their excellent torque speed characteristics, but the maintenance of DC motor is a big issue. Customer replaced DC motor and drive with 220 kW, 415 V AC Motor and VFD to run the kiln. Still, they were not able to increase the speed of kiln.

Amtech installed additional 110 kW auxiliary motor and VFD and an additional controller was used for load sharing. 110kWauxiliary motor and VFD. Additional controller used for load sharing.or and VFD. Additional controller u
Limitations of previous system :
  • The speed of kiln was not possible to be increased beyond 3 RPM
  • No possibility of increasing motor capacity due to limitation of torque as kiln may bend
  • Availability of motor / gearbox was a major issue
Challenges :
  • High torque to increase kiln speed – up to 4 RPM
  • Kiln bending due to single point torque
  • Start up and interlocking of both VFDs, front and back part of process

Solution :
  • Additional 110kW auxiliary motor installed
  • Axpert controller used to match the RPM and torque of both motors for proper load sharing
  • Built-in PLC function of Axpert-Eazy VFD used to provide required interlock to the system

Features :
  • Smooth speed control of kiln through two VFDs and motor of different ratings and specs.
  • No need for additional cost or investment.
  • Latest series variable frequency drive with state-of-the-art engineered panel with protection from dusty environment, ensures trouble free operation of the kiln.
  • Built in PLC function of Axpert-Eazy VFD used to provide required interlock to the system.
  • Variable frequency drive control eliminates the problems of motor, mechanical losses.

Benefits :
  • Assistance from concept to commissioning from Amtech
  • Speed of kiln increased to 4 RPM, resulting in higher production
  • New system with existing components
  • Higher reliability - Less Mechanical wear / tear – more uptime
  • Full motor protection
  • Smooth kiln operation
  • Energy saving
  • Easy troubleshooting
  • Quick and safe commissioning
  • Qualified after-sales service from Amtech


Monday, October 16, 2017

NEXT GENERATION IN SUGAR INDUSTRY

The new generation of control and monitoring system, developed by Amtech Electronics (India) Ltd, integrates the operation of Feeder table & ACFC (Auto Cane Feeding Control) Automation by using variable frequency drive and Automation system with instrumentation for controlling and monitoring.

Operation of Feeder table & ACFC Automation by using variable frequency drive :

Cane Preparation requires automation of feeder table, cane carrier, knife & mill operation. Raw canes are unloaded on feeder table through can unloader. Level sensor senses the level of cane accumulated. Control system controls the speed of feeder table, cane carrier 1 and 2 based on the Chute level, feeder table level and cutter load. The canes are thoroughly cleaned and cut into small pieces. These cane pieces are dropped over a continuous belt of steel plates called the cane carrier, moving over roller chains. From the cane carrier, these are conveyed to a crusher fitted with a set of revolving knives, and cut into very small pieces. These small pieces in the form of a compact blanket are passed through two roller crushers and four mills.

Features
  • Complete Automation system with ACFC.
  • Infra Red type Donnelly Chute level sensors.
  • Hall Effect type Cane blanket level and Top roller lift sensors.
  • Smooth start/stop operation without any jerks.
  • Very low speed operation is possible.
  • Motor reverse operation possible in critical situation.
  • Alarms for any electrical signals.
  • User friendly HMI with Mimic.
  • Upgradable solution to SCADA level.
  • Precision Motor Load / Pressure Sensors.
  • User friendly customized software, field and data inputs ensures constant load on Mills all the time.

Benefits
  • Assistance from concept to commissioning.
  • Substantial improvement in crush rate.
  • Damage due to choking/jamming at cane preparatory device and 1st mill is totally eliminated.
  • 1st mill extraction is higher with maintained constant levels in Donnelly Chutes.
  • Substantial reduction in wear & tear reduces down time and maintenance cost; improves up time & productivity.
  • Easy troubleshooting.
  • Irregular feed was resulting in fluctuating demand of steam pressure in old system. The new system gives optimum primary extraction due to the uniform cane feed at predetermined rate.
  • Quick and safe commissioning.
  • Qualified after-sales service.