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Temperature monitoring to ensure uniform heating of sinter bed

Home  Case Studies Temperature monitoring to ensure uniform heating of sinter bed

Temperature monitoring to ensure uniform heating of sinter bed

A non-contact thermal imaging camera was used to monitor  the temperature profile of the sinter cake and  ensure uniform heating.  Hot spots could be detected in time and avoid damage to conveyor and subsequent downtime was avoided.

Home    Case Studies    Pilger mill in tube rolling mills – hot and cold pipe detection

Pilger mill in tube rolling mills - hot and cold pipe detection

  •  Increased efficiency: Precise control of burner section to ensure uniform heating
  •  Improved safety level: Hot spot detection to avoid damage to conveyor and subsequent downtime
  • Process visualization: Monitoring sinter caking on a PC

Challenges

The sintered material of desired chemical composition and grain size is charged into the Blast furnace. Iron ore fines, limestone, waste, scale and slag particles and dolomites are mixed together. As the mixture is baked and the sinter cake moves on the conveyor, it becomes critical to ensure that the sinter is homogenous through the cake. Proper sintering removes unwanted Sulphur and makes down-stream processes efficient in the blast furnace.

Solution


In order to ensure uniform heating and to monitor the temperature profile of the sinter cake, a non-contact thermal imaging camera was used. The robust and compact design made it ideal for this application.
System features included

    • Temperature Range: 150⁰C – 1500⁰C
    • Wide optic lens. 4-20mA output signal
    • Data logging feature
    • Alarm and alert function
    • Rugged outdoor housing: for installing the camera for high ambient temperature environment
    • 80 Hz frame rate for the monitoring of fast thermal processes
    • Optical resolution of 382 x 288 pixels

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