Screen Panel Wear Detection Using Embedded Optical Sensors
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Solution Overview
Problem
Current screening systems in mining and other industries face issues with wear in screen panels due to intense vibrations and abrasive materials, leading to contamination and premature replacement, which results in increased costs and downtime.
Innovation Solution
A system that includes sensors mounted in or adjacent to the screen panels to detect wear and provide a notification signal when the panel reaches a threshold level, allowing for timely replacement and reducing the risk of contamination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If screen panels are replaced based on past use and replacement statistics, then preventive maintenance is achieved, but premature replacement occurs leading to additional waste and costs
Solution Approach 1:
The patent replaces mechanical wear-based failure with an optical detection system. Sensors mounted on the screen panels use optical fields to detect wear conditions, eliminating the need for mechanical inspection methods and enabling precise, non-contact monitoring of panel integrity.
Solution Approach 2:
The system implements continuous feedback through sensors that monitor screen panel conditions in real-time. The sensors detect wear and provide signals to a monitoring system, which then triggers alerts for replacement at the optimal moment, preventing both premature and delayed replacement.
2Ease of operation
If planned or scheduled replacement is implemented, then maintenance planning is improved, but unusual wear cases are ignored leading to breakthrough and contamination
Solution Approach 1:
The screen panels perform self-diagnosis through embedded sensors that automatically detect their own wear conditions. This self-monitoring capability allows the panels to signal when they need replacement based on their actual condition rather than following a predetermined schedule, ensuring unusual wear cases are immediately detected.
Solution Approach 2:
The patent replaces scheduled mechanical replacement with continuous optical monitoring. Sensors use optical fields to detect wear conditions in real-time, substituting the mechanical approach of fixed-schedule replacement with an intelligent, condition-based system that responds to actual panel states.
3Difficulty of detecting and measuring
If detailed inspection of the screening arrangement is performed when not in use, then wear detection is attempted, but it is not cost effective and occurs too late to prevent contamination
Solution Approach 1:
The sensor system enables continuous monitoring of screen panel wear during operation. Instead of intermittent inspections when equipment is idle, the sensors continuously detect wear conditions in real-time, ensuring wear is detected at the precise moment it reaches critical levels without requiring downtime for inspection.
Solution Approach 2:
The patent introduces sensors as intermediary detection devices between the screen panels and the monitoring system. These sensors act as mediators that continuously translate physical wear conditions into detectable signals, enabling real-time wear detection without direct human inspection or equipment shutdown.
Data Source
AI summary
A system, method, and apparatus for detecting wear in a screening arrangement is disclosed. The system, method, and apparatus can include a sensor that is configured to provide a notification signal when a surface of a screen panel has worn to a threshold level. The threshold level can be based at least in part on the amount of wear that requires replacement of a screen panel to prevent breakthrough or contamination. The notification signal provided by the sensor can be used to identify which screen panel or region of screen panels has been worn to the threshold level so that the screen panels can be replaced in a timely manner. The sensor may be coupled to a conductor embedded in one of the screen panels that is altered when a screen panel has worn to a threshold level, triggering the sensor to provide the notification signal.