Guide: Optimize the Performance of your Dust Collector/Baghouse

Avoid Problems and Optimize your Baghouse Performance

Underperforming pulse jet baghouses are usually the result of high dust loading, inefficient cleaning systems - or a combination of both. Left unchecked, these problems can result in process bottlenecks and increased operating costs. Below are some steps you can take to avoid this from happening. If you need assistance, we have the unique expertise to identify and solve baghouse problems.

Recommended General Operation parameters:

PRESSURE: 90-100 PSI (May vary depending on material type)

FREQUENCY (off time) 20 seconds or minimum time to maintain the desired differential pressure
 
DURATION (on time): 150 milliseconds

Pay special attention to:


Reservoir

Poor filter cleaning can be the result of undersized or restricted cleaning system components. It is important to make sure that there are not any restrictions starting from the compressor all the way to the reservoir. Also, ensure that your header tank size matches your cleaning requirements.


Cleaning Air

Ensure better cleaning with tanks that are kept free of moisture and debris as they can substantially impact the ability to clean the filters.


Pulse Frequency

The pulsing frequency can never be any faster than the reservoir can recover to full pulsing pressure.


Pulse Sequence

The pulse sequence should be adjusted to ensure that newly cleaned filters do not take in dust from the neighboring fi lter being pulsed. Staggering the firing order helps reduce cross contamination.


Hopper

Should not be used for storage. Evacuation equipment (rotary valves, screw conveyors, etc.) should be sized to unload hopper before accumulation occurs. Units with slide gates should be left open and equipped with sealed drum adapters.


Emission/bleed through


Depth    vs     Surface

Due to emission regulations sometimes enforcing a change of fi lter media, still more dust collector owners seize this opportunity to upgrade to a more efficient filter media, which helps filter even the smallest particles thereby providing users the potential to recycle more of their valuable product and/or meet the required reduced emissions requirements.

To reduce emission/bleed through, advantages can be achieved by upgrading from conventional filter bags to pleated bags with spunbond media or media with an ePTFE membrane.

Click here to read more about depth and surface filtration >


Choice of media

 

All dust types have specific characteristics and requires different handling. Therefore, it is often not enough to use a plain polyester media. Purchasing an enhanced treated/coated media (for example ePTFE membrane, HO treatment or antistatic surface) often turns out to be profi table as a result of better pulse cleaning.

Some of the factors that influence the right choice of media are humidity, temperature, conductivity and acid.

Read more about the most suitable solution for your industry >


Air flow

Several issues can cause reduced air fl ow in the dust collector. The most common problem is the balance between the cleaning of fi lters and dust loading into the collector. These factors strongly influence the amount of airflow the system can handle. If you need to handle more ACFM, more fi lter area is usually required.

Some customers choose to purchase longer bags or a new collector with more bags. Others choose a pleated bag solution which increases the filter area.


Drop out box

The drop out box is the distance between the bottom of the fi lters and the hopper. The greater the distance, the better the conditions are for the heavier dust particles to be dropped from the airflow before contacting the fi lter surface area. To optimize the drop out box, install pleated bags which are shorter, as well as having more surface area. The increased drop out box removes the filter from the abrasion zone.


Please notice:

Some collectors may operate successfully under less stringent settings, while other collectors may fail under more conservative settings.