Glass manufacturing plants face numerous challenges during production, particularly in temperature measurement within glass furnaces. 

Some key issues include:

• Traditional glass production relies on manual experience to adjust furnace temperatures, which can lead to residual stress or deformation due to uneven heating.

• The internal temperature of glass furnaces typically ranges from 1500 to 2000°C, with intense thermal radiation. Conventional contact sensors, such as thermocouples, are prone to damage and have a short lifespan.

• The furnace environment contains high-temperature molten glass, flames, smoke, and dust, which can obstruct or interfere with temperature measurement signals, leading to inaccurate data.

• Temperature distribution inside the furnace is uneven (e.g., large temperature differences between the melting tank, refining zone, and throat), requiring real-time multi-point temperature monitoring.

• The emissivity of molten glass varies at different temperatures, which affects infrared temperature measurement accuracy. Incorrect calibration can result in measurement errors.

• Temperature fluctuations also significantly impact the furnace structure itself.

To address these challenges, infrared thermal imaging cameras can provide continuous 24-hour monitoring of the glass furnace's external surface. By analyzing thermal images of the furnace shell, operators can identify and map hot spots that indicate refractory material damage, enabling early detection of issues such as lining cracks and heat loss. This proactive maintenance approach helps reduce costs and enhances production safety.

For instance, our specially developed RB-TemTV-09 IR-Camera for Glass Furnace is a highly penetrative infrared thermal imaging camera capable of seeing through dust and thermal radiation, capturing images that conventional high-temperature cameras cannot. It provides real-time temperature measurement of the observed materials. Additionally, the camera features a rotating air curtain system at the lens front, enhancing airflow intensity and coverage to effectively prevent furnace dust from contacting the lens.

Moreover, the system performs real-time analysis of temperature data and retains historical temperature records and alarm data for future reference. By leveraging quantifiable furnace temperature analysis, users can optimize material combustion efficiency and overall process performance.

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