Air Pollution Control

Waste gas / Waste fume scrubber

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Packed-bed scrubbers consist of beds of packing elements, such as rings, saddles, or other manufactured elements. The packing breaks down the liquid flow into a high-surface-area film so that the dusty gas streams passing through the bed achieve maximum contact with the liquid film.

We manufacture specially designed packed towers with very low pressure drop for cost effective scrubbing of waste gases. The various types of packed scrubbers are HCL scrubber, Ammonia Scrubber, H2S Scrubber, Scrubber for Hydro Carbons, Chlorine Gas scrubber,  SO2 scrubbers are designed to perform very efficiently  and suitable to generate by products such as Hydrochloric acid, Sodium hypo chloride etc.
Available various technical types of scrubbers are Multi-stage Sieve Tray Scrubbers, Plate Scrubbers, Bubble Cap Scrubbers.  Multi-stage Impingement Scrubbers, Venturi Scrubber,  Packed bed Columns, Absorption Columns and many more….

 


Venturi Scrubber


An ejector or venturi scrubber is an industrial pollution control device, usually installed on the exhaust flue gas stacks of large furnaces, but may also be used on any number of other air exhaust systems.

Venturis are the most commonly used scrubber for particle collection and are capable of achieving the highest particle collection efficiency of any wet scrubbing syst

em. As the inlet stream enters the throat, its velocity increases greatly, atomizing and turbulently mixing with any liquid present.

 

 


Bag Filters / Dust Collectors

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Commonly known as bag-houses, fabric collectors use filtration to separate dust particulates from dusty gases.

They are one of the most efficient and cost effective types of dust collectors available and can achieve a collection efficiency of more than 99% for very fine particulates.
Dust-laden gases enter the bag-house and pass through fabric bags that act as filters. The bags can be of woven or felted cotton, synthetic, or glass-fiber material in either a tube or envelope shape.

 


Cyclone separators / Multi Cyclone Separators
A high speed rotating (air)flow is established within a cylindrical or conical container called a cyclone.

cycloneAir flows in a helical pattern, beginning at the top (wide end) of the cyclone and ending at the bottom (narrow) end before exiting the cyclone in a straight stream through the center of the cyclone and out the top. Larger (denser) particles in the rotating stream have too much inertia to follow the tight curve of the stream, and strike the outside wall, then falling to the bottom of the cyclone where they can be removed.
Multiple-cyclone separators consist of a number of small-diameter cyclones, operating in parallel and having a common gas inlet and outlet, as shown in the figure. Multiple-cyclone separators operate on the same principle as cyclones—creating a main downward vortex and an ascending inner vortex.

 


Multi Effect Evaporators , MEE

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Evaporators are used to minimize VOC emissions from chemical industry, use of multi effect evaporator is started to recover DM water which can be further used in process. These evaporators are also used to recover product present in water wash.

In a multiple-effect evaporator, water is boiled in a sequence of vessels, each vessel at a lower pressure than the previous. As the boiling temperature of water decreases as pressure decreases, the vapor boiled off in one vessel can be used to heat the next, and only the first vessel requires an external source of heat.

Evaporators with more than four stages are rarely practical except in systems where the liquid is the desired product  in chemical recovery systems where up to seven effects are used.

 


Electrostatic Precipitator

esp
An electrostatic precipitator (ESP), or electrostatic air cleaner is a particulate collection device that removes particles from a flowing gas (such as air) using the force of an induced electrostatic charge.

Electrostatic precipitators are highly efficient filtration devices that minimally impede the flow of gases through the device, and can easily remove fine particulate matter such as dust and smoke from the air stream.
In contrast to wet scrubbers which apply energy directly to the flowing fluid medium, an ESP applies energy only to the particulate matter being collected and therefore is very efficient