Filter leak detection with dust sensors

What causes a filter leak?

A broken bag or a damage in the filter due to wear is the main reason for a leaking filter, leading to dust breakthrough into the clean gas line of the dedusting system. If the filter leak is not detected the dust may even be released into the environment. Filter leak detection is a safety-relevant measurement - both for the process and for the people in the surrounding area.

Filter leak detection with dust sensors

To detect a filter leak a dust sensor is installed in the clean gas pipe to monitor the exhaust air in the duct and provide immediate alarm if dust is detected. The use of dust sensors for filter breakage monitoring is significantly safer than conventional methods because even the smallest amounts of dust from 0.1 mg/m³ are detected. As soon as the dust concentration rises above the level of normal operation, the dust sensor responds and issues an alarm. Filter leak detection with a dust sensor is the most reliable method for detecting leaks or malfunctions in industrial dedusting systems.

What is the working principle of a dust sensor for filter leak detection?

There are two different technologies for dust detection. In the past, the triboelectric principle was used. With the development of DYNAguard electrostatic technology, however, a more advanced technology is now available. DYNAguard electrostatic technology reliably detects filter leaks. It is not necessary for the dust to actually get in contact with the sensor rod. In addition to the wide sensitivity range, DYNAguard technology also has the advantage that it is not affected by any build-up layers of dust on the sensor.

Advantages of filter leak detection with DYNAguard

DYNAguard offers the highest sensitivity and reliability for filter leak detection.