- October 7, 2015
- Category: Dust Collector
Let us first go through the introduction of duct collectors. A dust collector is simply a huge machine to collect tiny dirt that are present into air or gas in big industries. This way various industries collects dust and other impurities and helps to increase the quality of air released.
These are basically designed to handle high-volume dust loads. It has parts such as blower, dust filter, a filter-cleaning system and dust removal system.
In such a big industries there are variety of dust collectors used. Below are the types of dust collectors that are found.
- Inertial separators:
This type of dust collector uses some external force to separate the impurities from gas streams. These forces move the dust to an area where the forces exerted by the gas stream are lowest. Then these separated dust are move to hopper for storage.
There are also further classification of inertial separators such as Settling chambers, Baffle chambers and Centrifugal collectors.
- Fabric filters:
These are the dust collectors which are used to separate dust particulates from dusty gases. These are also known as Baghouse. They are one of the most efficient and cost effective dust collectors that can be found.
Now, as the dust has been collected it has to be removed. There are various techniques to perform this activity as well such as Shaking, Reverse air, Pulse jet, Sonic, Cartridge collectors
- Wet Scrubber:
In these systems, the scrubbing liquid comes into contact with a gas that contains dust particles. Greater contact of the gas and liquid tends to higher dust removal efficiency.
The gases then are passed through a eliminator to remove water droplets from the gas. The dirty water from the scrubber system is either cleaned and discharged. Dust is removed from the scrubber in a clarification unit or a drag chain tank. Here, both systems have solid elements settle on the bottom. A drag chain system removes the sludge and deposits in into a dumpster or stockpile.
- Electrostatic precipitators (ESP):
Electrostatic precipitators is a process by which we can separate the dust particles from exhaust gas by the external force such as electrostatic force. The contaminated gases afterwards flows through the passage which discharged electrodes creates.
The particles which are born in air receives a negative charge as they are allowed to pass through the ionized field. Further, these charged particles are then attracted to a positively charged electrode.
- Unit Collector:
They are small and consist of a fan and some form of dust collector. They are suitable for various operations such as for isolated and portable or frequent. These are less expensive as well as less efficient.
These are differentiated in two categories such as Fabric collectors and Cyclone collectors.
