Best Dust Collector System
Dust Collector Systems by Baghouse America are shipped all over the globe. A baghouse, bag filter, or fabric filter is an air pollution control device that removes particulates out of air or gas released from commercial processes or combustion for electricity generation. Power plants, steel mills, pharmaceutical producers, food manufacturers, chemical producers and other industrial companies often use baghouses to control emission of air pollutants. Baghouses came into widespread use in the late 1970s after the invention of high-temperature fabrics (for use in the filter media) capable of withstanding temperatures over 500°F. Unlike other dust collection systems where performance may vary significantly depending on process and electrical conditions, functioning baghouses typically have a particulate collection efficiency of 99% or better, even when particle size is very small.
Baghouse dust collectors have been used for industrial dust collection for over 50 years, providing a full range of solutions from nuisance dust to extremely heavy dust loads along with bin venting and product reclaim.
Modular Baghouse dust collector is a simple, reliable dust collector. Modular Baghouse dust collectors are designed to ship in major assemblies and load onto standard trucks with double drop trailer beds. This facilitates rapid field installation and limits crane time. The Modular Baghouse dust collector is designed to handle applications where high air volumes with heavy dust loading are the norm.
Most baghouses use long, cylindrical bags (or tubes) made of woven or felted fabric as a filter medium. (For applications where there is relatively low dust loading and gas temperatures are 250°F or less, pleated, non-woven cartridges are sometimes used as filtering media instead of bags.) Dust-laden gas or air enters the baghouse filter through hoppers (large funnel-shaped containers used for storing and dispensing particulate) and is directed into the baghouse compartment. The gas is drawn through the bags, either on the inside or the outside depending on cleaning method, and a layer of dust accumulates on the filter media surface until air can no longer move through it. When sufficient pressure drops (delta P) occurs, the cleaning process begins. Cleaning can take place while the baghouse is online (filtering) or is offline (in isolation). When the compartment is clean, normal filtering resumes.
In reverse-pulse-jet baghouses, individual bags are supported by a metal cage (filter cage), which is fastened onto a cell plate at the top of the baghouse. Dirty gas enters from the bottom of the baghouse and flows from outside to inside the bags. The metal cage prevents collapse of the bag.
Bags are cleaned by a short burst of compressed air injected through a common manifold over a row of bags. The compressed air is accelerated by a venturi nozzle mounted at the reverse-jet baghouse top of the bag. Since the duration of the compressed-air burst is short (0.1s), it acts as a rapidly moving air bubble, traveling through the entire length of the bag and causing the bag surfaces to flex. This flexing of the bags breaks the dust cake, and the dislodged dust falls into a storage hopper below.
Reverse-pulse-jet dust collectors can be operated continuously and cleaned without interruption of flow because the burst of compressed air is very small compared with the total volume of dusty air through the collector. Because of this continuous-cleaning feature, a reverse-jet dust collector is usually not compartmentalized.
The short cleaning cycle of reverse-jet collectors reduces re-circulation and redeposit of dust. These collectors provide more complete cleaning and reconditioning of bags than shaker or reverse-air cleaning methods. Also, the continuous-cleaning feature allows them to operate at higher air-to-cloth ratios, so the space requirements are lower.
In nearly every industrial facility, a dust collection system is a vital component for efficient operation. Their operation, reliability and efficiency directly impact profits at your facility (e.g. System downtime, high energy costs, lost production, environmental/workplace safety fines, etc.). Therefore, your choice of a dust collection system is by no means one to be taken lightly. Baghouse.com can provide the exact dust collection system you require. Unlike many of our competitors who offer large product lines of “cookie cutter” designs, Baghouse.com custom manufactures each collector to meet the specific needs of the customer without charging the inflated rates commonly associated with custom design.
This is just one example of the many standard value-added features that are included in all models Other features include expanded inlet diffusers, expanded quiescent free-board zone (i.e. clear space under filters) and clean on demand (clean on pressure) controllers.
Larger inlet diffusers prevent hopper turbulence, dust re-entrainment and facilitate material drop-out. Additionally, our units come with an expanded quiescent free-board zone between the inlet and the bottom of the filter bags that reduces unnecessary dust load, filter abrasion and interstitial velocity that further enhancing material drop-out all before the air stream even reaches the filters.
Finally, our dust collectors come equipped with “Clean-on-demand” controller systems that allows for bag cleaning based on differential pressure. This results in direct savings from lower compressed air usage, extended filter life, and lower emissions over the life of the filters/unit.
This cleaning system works with the help of digital sequential timer attached to the fabric filter.
This timer indicates the solenoid valve to inject the air to the blow pipe.
Some baghouses use pleated cartridge filters, similar to what is found in home air filtration systems.