Task
Detection of slagging of furnace walls and lowest heating surface banks to control wall blower operation.
Principle of Measurement and Advantages
Thermography imaging of furnace walls by IR-Camera (3,9µm-Flamefilter):
- Detection of position and intensity of slagging by high surface temperature even at reduced image quality due to transparency of furnace atmosphere
- Transparency of furnace atmosphere in IR better than in VIS-range
- Good geometric resolution
Solution
- IR-Cameras PYROINC 320 / 380
- Furnace optic (view tilted by 60°)
- Automatic camera operation (turning, moving)
- Scanning of furnace walls by turning the furnace optic, rectification and geometric assignment
- Control of wall blowers
- Number of cameras depends on furnace geometry and transparency of atmosphere.
- Easy maintainance
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1) Scanning of furnace by turning the furnace opric 2) Rectification and geometric assignment 3) Definition of wall blower figures 4) Control of wall blowers |