Automatic back-blowing control system and method applied to reducing high material level frequency of ash bucket

Abstract

This application relates to an automatic backflushing control system and method for reducing the frequency of high material levels in ash hoppers. By installing a hopper pump below each ash hopper and a balancing valve between the pump and the hopper, backflushing of the balancing valves in all ash hoppers is performed via the ash conveying and control pipelines at the start of backflushing. This balances the air pressure between the pump and the hopper, ensuring that dust can fall smoothly from the hoppers. Then, the feed gates of all ash hoppers are backflushed sequentially to ensure unobstructed flow. Finally, with balanced air pressure and unobstructed feed gates, the ash falling and conveying process is carried out. This application can effectively and quickly perform backflushing, reducing or avoiding high material levels caused by poor ash falling, and playing a positive role in the safe and stable operation of electrostatic precipitator ash hoppers.

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