Intelligent diagnosis, early warning and purging system and method for coal mill primary air pipe powder accumulation
By measuring the resistance coefficient of the primary air duct and employing a multi-safety threshold verification mechanism online, an intelligent diagnosis, early warning, and purging system for dust accumulation in the primary air duct of a coal mill was constructed. This system solves the problems of early warning and non-intrusive purging of dust accumulation and blockage in the primary air duct of a coal mill, thereby improving the operational safety and efficiency of coal-fired power plants.
Patent Information
- Application Number
- CN202610683543.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-05-18
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies rely on manual monitoring for diagnosing and preventing dust accumulation and blockage in the primary air ducts of coal mills. This results in difficulties in diagnosis, low efficiency, and a large workload for manual adjustments, making it difficult to achieve early warning and effective purging, which affects the safe and stable operation of the unit.
By measuring the resistance coefficient of the pure air duct in the primary air duct online, and combining multiple safety thresholds and verification mechanisms, intelligent diagnosis and early warning of dust accumulation trends are achieved. Furthermore, an online adjustable orifice reduction device is used for imperceptible purging, thus constructing an intelligent diagnosis, early warning, and purging system for dust accumulation in the primary air duct of a coal mill.
It enables early fault warning and non-intrusive purging of coal mill primary air duct dust accumulation, improves the safety and efficiency of unit operation, reduces manual intervention, and is applicable to a wide range of intelligent applications for various units.
Smart Images
Figure CN122399984A_ABST