An underperforming dust collector is often the result of very high dust loading, ineffective cleaning, or a combination of the two. Left unchecked, these problems can result in unplanned downtime and increased operating costs. So, while this is not necessarily an exhaustive rollout of potential issues, listed below you will find a handy checklist of measures you and your staff can take to avoid costly shutdowns and frequent filter changes.
1. Compressed air pressure is critical for cleaning
Compressed air pressure is vital for the performance and longevity of your dust collector. When compressed air pressure is too low, cartridges are not properly cleaned and that usually results in rapid downgrade and saturation. If air pressure is high, cartridges are used up faster and need to be replaced more frequently, driving up costs and maintenance. The quality of your compressed air is also critical. Moreover, the compressor must be strong enough to supply air at constant pressure, even when production is running at maximum speed and all users are demanding peak compressed air quantities.
There are three main boxes to tick:
- Compressed air pressure must be always within the limits of constructor recommendations,
- compressed air should be oil and water free and
- quantity of compressed air available should be sufficient for all users that perform simultaneous tasks.
2. The hopper is not meant to be used for storage
Evacuation equipment (rotary airlocks, screw conveyors, etc.) should be sized to unload the hopper before any accumulation occurs. Check and empty the dust bin regularly to avoid dust from the hopper touching the filter element.
3. Know about pressure drop
Increasing pressure drop across the collector affects negatively the ability of the dust collection system to capture the dust and allows it to escape into the facility. A simple but important safety requirement is to change filters when airflow reaches a differential pressure (above the specified maximum specifications) or 120-150daP.
Read items 4 — 6 on the Checklist on page 2.
This article is protected by copyright. You want to use it for your own purpose? Infos can be found under www.mycontentfactory.de (ID: 45042446 / Powder Bulk Handling)