Steel Plants

The nature of steel manufacturing processes places severe limitations on the monitoring methods that can be used. Aggressive environments combined with high levels of particulates and gases make the choice very limited.
OPSIS monitoring systems are designed for such environments, where they are already meeting the demands for reliability and performance on many sites around the world. Using UV/FTIR DOAS (Differential Optical Absorption Spectroscopy) or TDL (Tuneable Diode Laser) technique, an OPSIS system provides an open-path, non-contact monitoring system unaffected by the gases, temperatures and particulates typical of steel manufacturing processes.

The technique used is the most suitable for the current application. Being able to monitor a range of user specified compounds continuously in real time with a single system, the OPSIS instruments offer high levels of accuracy, reliability and data capture. They also offer the speed of response needed for process control.
 
Besides monitoring common gases such as nitric oxide (NO), nitrogen dioxide (NO2), sulphur dioxide (SO2), carbon monoxide (CO), carbon dioxide (CO2), ammonia (NH3), hydrogen chloride (HCl), oxygen (O2) and water vapour (H2O), systems are available to meet the specific needs of particular users: 

Mini mill –Electric Arc Furnace

monitoring O2, temperature, NOx, NH3

Coke plant

monitoring VOC’s, benzene, SO2, NOX, O2, CH4, CO, CO2, NH3, H2S

Steel making – Converter

monitoring SO2, NOX, O2, CO, CO2, temperature

Sinter plant

monitoring SO2, NOX, NH3

Steel production – Hot strip mill – Slab reheating

monitoring SO2, NOX, O2, NH3, temperature

Steel rolling – Pickling line

monitoring HCl

Features

  • Multiple monitoring points using a single analyser
  • No sampling required, non-contact measurement system
  • Best performance according to QAL 1 certification
  • Longest calibration interval according to QAL 1 certification
  • Fast response time for process control applications
  • Applications with high dust level, highly corrosive environments, and high temperature
  • Can be installed in explosive areas
  • AQM and fence-line monitoring capabilities
  • Low energy consumption
  • Gas calibration only once per year
  • Internationally approved
  • Thousands of systems installed worldwide
  • Serviced by highly skilled service network

System Overview

UV and FTIR DOAS monitoringsystem for steel plants

TDL monitoring systems for steel plants


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