There is a certain industrial process that produces dust. The dust is then released into the air and becomes airborne. A baghouse is your best bet when it comes to controlling such dust. It is also referred to as the particulates of a productive and healthier industrial process. With such a facility, the dust can be captured for disposal or recycling depending on how valuable the dust is. For example, lithium carbonate dust is valuable because it can be used in the manufacture of lithium-ion batteries. You can rely on dust extractor filter bags manufacturers for quality supplies at affordable prices.
The Mode of Operations for a Common Baghouse
Baghouse also comes in different shapes and sizes depending on the needs of the industrial processes. Some are the size of a typical refrigerator and can be used to filter about 500 cubic feet per minute (CFM). Their working mechanism also depends on the process and can either be forced or induced air filtration. When air is passed through a filtration medium (bag), the dust particles are captured because they are not small enough to pass through the filter. In a baghouse, the dust is captured by the dust extractor filter bags and remains upstream as the air proceeds downstream.
Be sure to ask your dust extractor filter bags manufacturers about any other specifications before you purchase the baghouse. This is because the equipment ensures the filtration of air by removing any dust particles with a collection efficiency rate of 99% and above. During the process, filtered air continues downstream into the atmosphere while the captured dust particles are retained as emissions. Sometimes there is a need to recirculate the emitted air back into the baghouse especially during cold climates to reduce heat loss.
Used to Capturing other Dust Particles
A baghouse is designed to work like a bigger vacuum cleaner. In as much as it is meant to remove dust from the surrounding environment, it also requires dust for the efficient filtration process. There are acceptable limits of dust that should be maintained on the filtration medium to achieve a desirable filtration process. This is similar to how a pump is prepared to achieve optimal operating pressure. It is easy to overlook such a technical process because many people always prefer to have a brand-new filter medium. However, an effective dust extractor filter bag should be seasoned with a limited amount of dust on the surface.
Evaluating Air Flow
The incoming air is full of dust particles and is injected into the baghouse using a fan power. This dusty air is forced into the inlet by positive pressure. The cleaned air, on the other hand, is pulled from the outlet using negative pressure. The baghouse also contains several bags that are held by metal cages hanging n the tube sheet. The filter bags are then fitted on the cages and are designed to perform specific functions under specific conditions. When the dusty air enters the open cavity of the baghouse, it is directed into the filtration media where it leaves all the dust particles on the surfaces of the bags. The filtered air then leaves the chamber through downstream where it is directed to the stack or the recirculation process.
Cleaning the Pulse Jet
You need to ensure proper cleaning of the pulse jet by establishing a cleaning cycle. This cycle can be based on an activated time sequence or by setting an ideal differential pressure. When the ideal pressure is reached the jet is cleaned automatically by removing excess dust from the surfaces of the collector. The automated process is designed in such a way that the jet self cleans when the high point is reached and switched off when a low point is achieved.
Several pulse jet cleaning mechanisms utilize a right-angle diaphragm valve. This is a system where the air comes in through a specific direction then expelled at a 90-degree angle. The system is fitted with an internal diaphragm controls that determine the amount of air passing through the valve. It is also fitted with a lower and upper chamber which are separated by a flexible diaphragm. The lower chamber on the diaphragm is connected to the pulse pipe while the upper chamber is connected to the solenoid valve.
The Main Function of the Hoppers
When the filtered dust finds its way to the hoppers, it is removed regularly to prevent buildup. Dust buildup is not the desired phenomenon because it usually leads to solidification and sometimes dust bridging. A hopper is fitted with a rotary valve that is used to remove any dust particles from the hoppers. They also contain an air seal that prevents that dust on the hopper from flowing back to the air stream.