Leak Detection
A continuous dust discharge from your dust collector is often an indication of a problem within the collector. Leaking collectors are usually diagnosed by simple visual observation. If there is a visible plume or emission from the clean-side of the dust collector, it can most likely be attributed to a problem with system integrity.
The resulting leak be caused by any of the following:
- Torn, or damaged filter media,
- A bent or damaged filter assembly,
- Incorrect installation of a filter element,
- A detached bag filter, or
- A mechanical failure of the tube sheet due to abrasion
If a simple visual inspection does not locate the leak, a more extensive leak-test with fluorescent tracing powder may be required. Very fine, fluorescent powder is added to the dirty side of the collector while the collector is run for a brief period of time. The collector is then shut down, and the clean air side is inspected using a special detection light (black light) to illuminate the clean side of the collector. If leaks are present, the fluorescent tracing powder (which passed through the leaks) will glow very brightly. This will make it very easy to spot the point of the leaks.
Although fluorescent tracing powder and detection lights are readily available commercially, this type of testing is more commonly performed by professional dust collector service businesses and organizations. In some instances, different colours of powder may be used to confirm effective corrective actions after the initial tests locate the leaks.
Envirox has leak detection solutions for all industries:
Orange Visolite
Can be used in all industries, except where iron oxide is present
Pink Visolite
Can be used in all industries
Green Visolite
Ideal in aluminium, cement and utility industries
Yellow Visolite
Can be used in all industries except in cement, lime and asphalt applications and in utility and power generation plants where sulphur-based dust is present.
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