After a dust collection system is installed, there is typically very little maintenance required. Maintenance frequency will vary based on how heavy the application is.
A dust collection system will continually perform well as long as it's maintained regularly. To ensure your dust collector operates to its full potential implement these 10 tips.
It's important to have a preventative maintenance plan in place to ensure that the dust collection systems components are working properly and if not, replacing any damaged or broken elements, and taking corrective action if the operation process is unlike design conditions.
We recommended keeping a record of daily, weekly, monthly, and yearly inspection logs as directed in the manufacturer's manual.
One of the most critical aspects of maintaining dust collectors is compressed air. There are a few factors that ensure compressed air is up to standard:
• High-quality air pressure is key to ensuring the best clean.
• If the pressure is too low, cartridges are not adequately cleaned resulting in saturation.
• If compressed air pressure is too high cartridges will be used and replaced more frequently.
• The power of the compressor needs to be strong enough to supply air at a constant pressure throughout maximum production and when operators require high levels of compressed air.
Inspect the clean-air side of the dust collector for leaks and the bag filter for tears.
The filter media is the most important element because it collects and controls the dust. If pressure drop within a collector becomes high it may be due to excessive dust buildup or blinding of filters.
Our dust collector replacement filters feature a pleated design that provides more surface area than bag filters. Because of their design, cartridge filters allow air to flow through them easily while capturing dust particles more efficiently. When you shop with us, you can buy with confidence. If your expectations aren't met we will replace your filter at no cost!
Hoppers may be used to direct collected dust to storage containers or transport systems, but they aren't meant for storage.
It's important to check the empty dustbin regularly to prevent bridging. Bridging traps dust in the hopper and can raise the pressure drop in the dust collector.
Keep an eye out for particulate that is discharged from the exhaust stack. Visible emissions suggest a tear in a seal or filter.
If you notice emissions leaking it's imperative to find the tear as they create health risks, property and equipment damage, and possible fines. It's recommended to integrate a broken bag detector that alerts staff of bag failure or leaks.
When filter bags accumulate dust some particulate becomes ingrained into the filter media and increases appropriate pressure drop. The airstream that filters through this dust collects the fine particulate using high-efficiency. High differential pressures can cause filter media to bleed impeding the dust collector's ability to capture dust and allowing it to escape into the surrounding environment.
• When airflow reaches a differential pressure of 120 to 150daP or above max. specifications it's time to change the filter.
• Differential pressure is the amount of static resistance across filters when operating a positive or negative pressure dust collector.
• A pressure drop is generally measured in inches of water column, or wc, and indicates the amount of dust collected on filter media and the condition of filters.
An exhaust fan is used to quickly send ventilation air from the hood or point of pick-up through the ductwork and dust collector filter and out of the exhaust stack. To determine which exhaust fan meets SCFM requirements calculate the pressure drop by gauging the static resistance of ductwork, the dust collector, and hoods or pick-up points.
The quality of a dust collector's structure can affect performance and maintenance, and reduce equipment life. It's important to inspect welds, joints, and flange seals. All leaks should be sealed mechanically or with silicone caulking.
In a positive pressure system, dust will blow out of the collector creating a potential risk to employees.
In a negative pressure system, a tear in a seal or weld will allow ambient air to enter the collector bringing in moisture and contaminants.
Signs to check for:
• Make sure all fasteners are in place and tightly fastened.
• Check the structure for excessive corrosion and signs of weakness.
• Replace and re-weld any components that have cracked welds such as bolts, cross bracing, or gussets.
• Closely evaluate the filter's external walls for corrosion or bowing.
• Repair holes in the dust collector walls or hopper.
Reverse air, pulses, and shakers are all used to loosen up dust from filter media. If the system that your dust collector uses is not properly functioning, dust will continue to build resulting in an increased pressure drop and a decreased volume of ventilation air.
If the situation escalates, airstream velocities will reduce causing a dropout of dust in the ducts which can interrupt the entire system.
Another important element in a dust collection system is the ductwork. Without ducting, particulate will not be able to reach the baghouse and the dust collector will not perform efficiently.
It's recommended to regularly check ductwork for dust accumulation. Implementing clamp-together, or quick-fit ducting, allows operators to easily disassemble ductwork for inspection and cleaning.
© 2023 Air Cleaning Specialists, Inc (An Authorized Clark Filter Distributor). Return Policy
Need Dust Collection Ducting? We Recommend Nordfab Ducting
As a manufacturer and distributor of Air Cleaning, Ducting, and Filtration products we are proud to have been identified as an essential business. We will remain open for business performing essential operations during this crisis, supplying industrial, military, and healthcare operations with our products. We are shipping orders on time, with no delay in manufacturing.
Our phone lines are open from 9am-5pm central time, Monday through Friday. Our staff is working remotely wherever possible and we will maintain a bare minimum staff on site to perform basic operations of order processing and accounting. Our onsite staff will follow the appropriate best practices and guidelines set forth by OSHA's latest release of "Guidance on Preparing Workplaces for COVID-19."
These are unprecedented times and we are committed to protecting both our employees and our communities. Clean air has never been more important, and we're making sure our customers have everything they need. From those working from home who need high quality air filters, to the other essential businesses we supply products to, we're here for you.
We thank you for your support and your business and we hope that this will all be over soon.