Pulse Jet Type Dust Collector

Product Details:

A pulse jet bag filter, also called a pulse jet baghouse or pulse jet dust collector, is a self-cleaning dry filtration system. The pulse jet dust collector cleaning system removes particulate matter and dust from the surface of internal filter media with bursts of compressed air. Pulse jet bag filters are the most common type of particulate air pollution control equipment found in workplaces, including factories, plants, warehouses, and other industrial or commercial environments, to meet workplace air quality safety requirements and comply with EPA requirements for emissions.
 The pulse jet dust collector contains no moving parts, thus offering reliable continuous operations along with superior filtration efficiency, engineered to effectively collect and remove potentially harmful particulate matter gas fumes that would otherwise enter the work environment or atmosphere. The popularity of the pulse jet style of dust collector is due to its ease of operation, low energy usage, and minimal maintenance requirements.
Pulse jet bag filters get their name from the short bursts or “pulses” of compressed air used to clean them. In the pulse jet system, the dust is collected on the external surface of the bag/filter, where it commonly forms into a cake of dust. Either on a timed basis or based on pressure drop when the dust cake is at an appropriate thickness, a controller activates a sequential pulse of compressed air into the interior of the filter bags, one (or more) row(s) at a time, knocking the dust and dust cake free of the filter to fall via gravity into the hopper for removal. The mechanics of the compressed air pulse and associated induced draft of additional air through a venturi nozzle create a shock wave and ripple effect on filter bags which enhances the mechanical force of the initial blast of compressed air itself to dislodge the dust particles off the fabric.

Product Details:

A pulse jet dust collector is a dry filtration system that incorporates an integral media cleaning system. It might be called a pulse-jet collector, a pulse-jet filter or a pulse-jet fabric filter. The media is usually a tubular shaped vertical bag of varying diameter and length. It’s also common to see pleated bags and “flat” bags mounted horizontally. Many bags are arranged inside a housing and particulate matter accumulates on the outside of the bags.
The cleaning system removes particulate that has accumulated into a “cake” onto the bags by blowing high pressure compressed air into the inside of the bag.
Pulse jet bag filters are a common type of dry air pollution control equipment found in industrial plants and play a critical role in the protection of workers, the general environment and also to collect valuable material for refining or re-use.
Automated cleaning control systems have become common to regulate the pulse of compressed air that the bags receive. Cleaning strategy and correct operation of the cleaning system yields improvements in the use of compressed air and therefore energy use. Bag life has been shown to improve through good maintenance practices in pulse-jet dust collectors.
What are some of the benefits of pulse-jet dust collectors?

The technology can be applied across many different gas or dust types

The mechanisms are relatively simple to install and maintain

This system has become accepted practice across many industries, bringing familiarity

Pollution control is very good and can be further enhanced by design

What are some constraints for using pulse-jet dust collectors and filters?

There must be a reliable compressed air source

Sizing of systems for airflow should be precisely calculated and re-assessed as process conditions change

Regular maintenance of the bags and cleaning system enhance lifecycle performance.