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Wet Scrubber Manufacturers in India
Thermodyne Engineering Systems is a leading manufacturer of wet scrubbers for boilers in India. We pride ourselves on our ability to custom-design wet scrubbers to meet the specific needs of our customers. We use our expertise and innovation to create wet scrubbers that are effective at removing emissions and compliant with environmental regulations. We are committed to providing our customers with top-notch solutions that help them operate more cleanly and sustainably. For wet scrubber purchase query contact our sales team: Buy Wet Scrubber
What is Wet Scrubber in Boilers
A wet scrubber is a type of air pollution control device that uses a liquid to remove pollutants from flue gas. The flue gas is passed through a spray of water or another liquid, which absorbs the pollutants. Wet scrubbers are commonly used in boilers to remove sulfur dioxide (SO2), nitrogen oxides (NOx), particulate matter, and mercury from flue gas.
In boilers, wet scrubbers are typically installed in the flue gas path after the boiler. The flue gas is then passed through a spray of water or another liquid, which absorbs the pollutants. The pollutants are then removed from the water in a variety of ways, depending on the type of wet scrubber.
There are two main types of wet scrubbers used in boilers:
- Packed bed scrubbers: Packed bed scrubbers have a bed of packing material, such as gravel or plastic, through which the flue gas is passed. The packing material helps to increase the contact time between the flue gas and the water, which improves the removal efficiency of the pollutants.
- Venturi scrubbers: Venturi scrubbers use a venturi to create a high-velocity stream of water. The flue gas is then passed through the venturi, where it is mixed with the water. The high-velocity water helps to remove the pollutants from the flue gas.
Wet scrubbers are very effective at removing pollutants from flue gas. They can remove up to 99% of SO2, NOx, particulate matter, and mercury from flue gas. Wet scrubbers are also relatively easy to operate and maintain.
Why Wet Scrubber in Boiler System?
As the pollution norms are getting stringent and the government is making sure that pollution laws are being implemented, many industries are coming up with various solutions and strategies for reducing the pollution and its management. One such solution is using pollution control equipment such as Wet Scrubbers.
Sources of Pollution in Boiler?
Industries or Thermal power plants generally have boilers or furnaces installed in their processes where combustion of fuel is taking place.
The general composition of a fuel is a mixture of Carbon (C), Hydrogen (H), Sulfur (S), Oxygen (O), Nitrogen (N)and other elements. Combustion of fuel with air generates flue gases that contain Sulfur Dioxide (SO2), Carbon Dioxide (CO2), Ash, Water vapor (H2O).
Out of these SO2 and Ash are the main pollutants that are responsible for Air pollution and therefore must be treated before the flue gases are vented out of the combustion chamber.
Working Principle of a Wet Scrubber
Wet Scrubbers are the pollutant treatment equipment in which flue gases containing Sulfur Dioxide (SO2) and Ash are allowed to bring in contact with the water by either allowing the parallel flow or counter flow. Before allowing the contact between flue gases and water, water is dosed with Calcium Carbonate (CaCO3). In water SO2 creates an acidic environment and addition of CaCO3 creates alkalinity in water which negates the acidic nature of water.
Also Read: Air Pollution Control Equipment
Because of the acidic nature of SO2 in water, a tower is generally constructed in an SS material to avoid the corrosion of tower and to increase its operating life. The tower is filled with the random packing that allows the effective area of contact between the flue gases and water thereby increasing the residence time.
Increase in residence time helps in increasing the transfer of SO2 and ash from flue gases to water until they get in equilibrium before they cross each other.
Pros of Wet Scrubbers in Boiler System:-
- Reduces pollution and follow the compliance of the Pollution Control Board.
- Easy operation so trained operator is not required.
Cons of Wet Scrubbers in Boiler System:-
- High-pressure drops of gases through Wet Scrubber so fan power requirement increases.
- Since water is now acidic so it must be treated before disposing to the nearby sewers.
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Wet Scrubber Manufacturers For Boiler FAQ
A wet scrubber is a type of air pollution control device that uses a liquid to remove pollutants from flue gas. The flue gas is passed through a spray of water or another liquid, which absorbs the pollutants.
Wet scrubbers can remove a wide variety of pollutants from flue gas, including sulfur dioxide, nitrogen oxides, particulate matter, and mercury. They can also reduce the opacity of flue gas, which makes it less visible.
Wet scrubbers can be expensive to install and operate. They can also consume a lot of water and generate wastewater.
There are two main types of wet scrubbers: dry scrubbers and wet scrubbers. Dry scrubbers use a dry powder to absorb the pollutants, while wet scrubbers use a liquid.
Wet scrubbers work by passing the flue gas through a spray of water or another liquid. The pollutants in the flue gas are absorbed by the water, and the clean gas is then released into the atmosphere.
The main components of a wet scrubber are the fan, the spray nozzle, the absorber, and the sump. The fan creates the airflow through the scrubber, the spray nozzle sprays the water or other liquid, the absorber absorbs the pollutants, and the sump collects the wastewater.
Wet scrubbers need to be regularly maintained to ensure that they are operating properly. This includes tasks such as inspecting the equipment, cleaning the nozzles, and replacing the filters.
Wet scrubbers can pose a number of safety risks, including the risk of explosions, fires, and chemical exposure. It is important to take steps to mitigate these risks, such as installing safety equipment and training personnel on how to operate the scrubber safely.
More information about wet scrubbers can be found from a variety of sources, including manufacturers of wet scrubbers, government agencies, and industry associations.
The use of wet scrubbers is expected to grow in the future due to the increasing demand for air pollution control. New technologies are being developed to make wet scrubbers more efficient and cost-effective.