Temperature Measurement


Shell temperature monitoring

May 2009 Temperature Measurement

Thermal imaging system for rotating kilns.

The CS200 process imaging system from Raytek has been designed for kiln shell temperature monitoring. The Raytek CS200 is a comprehensive temperature measurement system for monitoring, control, and analysis of rotating kilns primarily used in the cement and paper industries (lime kilns). This unique combination of infrared sensor technology and a powerful industrial software programme, allows accurate detection and monitoring of refractory hot spots and internal build-up, and prevents costly kiln damage and extend production runs between refractory replacements.

Technology evolution

The CS200 expands on the successful CS100 kiln shell-monitoring product, which has seen over 170 installations worldwide. With such a broad range of experience in much diverse geography, Raytek is in the unique position of combining its broad range of temperature measurement solutions with expert application knowledge to create some of the most comprehensive kiln shell monitoring products available on the market today.

The CS200 system has features such as full-colour thermograms of the kiln surface, user-defined alarms, automatic fan control and extensive historical data analysis capability. The new CS200 system builds on the existing CS100 base and increases the number of lines scanned per revolution to 200, adds OPC server functionality, more powerful database applications, and full integration of options that were standalone accessories in the older system. Most notably, multiple point sensors can be installed and configured to monitor portions of the kiln ‘shadowed’ from the main sensor by physical obstructions, and the results displayed as one homogenous thermogram. Similarly, a separate sensor is available to monitor the burning zone of the kiln with the data seamlessly incorporated into one common display.

Options previously available, such as the live ring migration software to monitor tyre slip, are still supported by the new product but now the results are fully integrated into one display allowing the operator to monitor the complete kiln without switching back and forth between different applications. The integration does not stop at the display, all error and alarm reports are now fully integrated, as is the OPC interface.

The hardware has also been significantly enhanced with ease of installation and use in mind, and as far as possible connection boxes are pre-wired at the factory.



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