Automatic monitoring of smelt flow exiting a recovery boiler
AssigneeAndritz Inc.
InventorHeikki LAPPALAINEN
Life of this patent
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Abstract
A system for automatic monitoring of smelt flow exiting a recovery boiler based on optical information. A processor is used to read at least one stationarily imaged video sequence, comprising digital image frames, including an area under examination representing at least part of the smelt flow exiting the recovery boiler. The processor is used to identify, in the area under examination, an area distinguishable based on colour and/or intensity information. The processor is used to determine, based on the identified distinguishable area, a monitored flow property of the smelt flow.
Claims23
A method for automatic monitoring of a smelt flow exiting a recovery boiler, the method comprising:
- reading, with a processor, at least one stationarily imaged video sequence, comprising digital image frames, each of the digital image frames includes at least one area under examination representing at least part of the smelt flow exiting the recovery boiler;
- identifying, with the processor, in the at least one area under examination, at least one area distinguishable based on color and/or intensity information in the digital image frames;
- and
- determining, based on the at least one distinguishable area identified with the processor, at least one monitored flow property of the smelt flow.
A computer device comprising
- at least one processor;
- and
- at least one memory comprising computer program code, wherein the at least one memory and the computer program code are arranged with at least one processor to make the computer device:
- read at least one stationarily imaged video sequence comprising digital image frames, wherein each of the digital image frames includes at least one area under examination representing at least part of a smelt flow exiting a recovery boiler;
- identify, in the at least one area under examination, at least one area distinguishable based on color and/or intensity information in the digital image frames;
- and
- determine, based on the at least one distinguishable area, at least one monitored flow property of the smelt flow.
Dependencies are inferred from the claim text.