Flue Gas Desulfurization (FGD) Agitator

At Verito, we pride ourselves on being at the forefront of engineering excellence, delivering high-performance Flue Gas Desulfurization (FGD) agitators that stand as a benchmark in the industry. Our commitment to quality, innovation, and environmental sustainability drives us to create agitators that not only meet but exceed the rigorous demands of modern industrial processes.

 

 

 

Understanding the FGD Challenge

 

Flue Gas Desulfurization (FGD) is a critical process in reducing sulfur dioxide (SO₂) emissions from industrial exhaust gases, particularly in power plants and large-scale industrial operations. The agitator is a vital component in this process, ensuring the effective mixing of slurries to maximize the contact between the flue gas and the absorbent, leading to efficient SO₂ removal.

 

Verito: Your FGD Agitation Partner

 

Verito is a global leader in designing and manufacturing cutting-edge agitator solutions specifically tailored for FGD applications.

 

Our FGD agitators are specifically designed to handle the unique challenges presented by different types of desulfurization systems, including limestone, gypsum, magnesium oxide, and ammonia-based FGD processes. A key feature of our agitators is the use of Alloy 926 or higher-grade materials in impeller construction, ensuring exceptional resistance to corrosion and wear in aggressive environments. Here’s a detailed look at how Verito agitators enhance each critical aspect of the FGD system:

 

 

Absorber Agitators

 

Application

  • In the absorber, where flue gas comes into contact with the slurry, effective mixing is crucial to maximize the contact area between the gas and the absorbent.

Technical Features

  • Verito’s side entry agitators are designed to provide thorough mixing within the absorber, ensuring that the absorbent (e.g., limestone slurry) interacts effectively with the flue gas to optimize sulfur dioxide (SO₂) removal. These agitators are built to withstand the highly corrosive environment of the absorber.

 

Limestone Slurry Preparation and Storage

 

Application

  • Limestone slurry is a key absorbent in many FGD processes, requiring precise preparation and consistent mixing to maintain slurry homogeneity.

Technical Features

  • Our top entry agitators are employed in limestone slurry tanks to ensure that the slurry remains uniform, preventing sedimentation and ensuring a consistent feed to the absorber. These agitators are designed for high efficiency and low maintenance, making them ideal for continuous operation.

 

Absorber Drain Tank

 

Application

  • The absorber drain tank collects slurry that is not fully processed and requires further treatment or recirculation.

Technical Features

  • Verito agitators in the absorber drain tank maintain slurry movement, preventing settling and ensuring that the slurry can be easily pumped for further processing or disposal.

 

Reclaim Water/Reuse Water Tanks

 

Application

  • Reclaim and reuse water tanks are essential for the recycling of process water within the FGD system, reducing overall water consumption and waste.

Technical Features

  • Our top entry agitators are tailored for water tanks, providing efficient mixing that ensures consistent water quality and prevents stagnation. These agitators are optimized for energy efficiency and longevity, even in large tanks.

 

Gypsum Slurry

 

Application

  • Gypsum, a byproduct of the FGD process, is typically collected as a slurry and requires careful handling to avoid blockages and ensure smooth transport and processing.

Technical Features

  • Verito agitators are specifically designed for gypsum slurry tanks, offering robust mixing that prevents the slurry from solidifying or settling. This ensures that the gypsum can be efficiently processed or transported for further use.

 

Area Sumps and Wastewater Treatment

 

Application

  • Sumps collect various liquids from the FGD process, including washdown water and other waste streams, which must be mixed and treated before disposal.

Technical Features

  • Our agitators for area sumps and wastewater treatment tanks are designed to handle high solids content and aggressive chemicals, ensuring that the contents remain homogenized for efficient pumping and treatment.

 

Chloride Bleed Wastewater Treatment / Heavy Metals Removal

 

Application

  • Chloride bleed and heavy metals removal are critical to maintaining the efficiency of the FGD system and meeting environmental discharge standards.

Technical Features

  • Verito agitators in these systems ensure thorough mixing of reagents and wastewater, enhancing the effectiveness of chemical treatments designed to precipitate and remove contaminants.

 

Fly Ash Make-Down and Storage

 

Application

  • Fly ash, another byproduct of the combustion process, must be properly handled and stored to prevent dust and ensure easy transport.

Technical Features

  • Verito agitators in fly ash make-down tanks provide efficient mixing that prevents the ash from clumping, ensuring a uniform slurry that can be easily pumped and processed.

 

Technical Specification & Capabilities

 

Motor Power Upto 100 kW
% Solid Concentration 0-70% (W/W)
Impeller Diameter 300mm – 4000mm
Shaft Diameter 30-300 mm
Impeller Type Hydrofoil, Wide Foil, Turbine
Materials (Wetted Parts) EN8+RL, EN24+RL, Alloy 926 or Better Grade

 

Customization and Engineering Excellence

 

Verito’s commitment to customer satisfaction is reflected in our ability to provide tailored solutions. Our engineering team employs advanced design tools and simulation software to optimize agitator performance for specific FGD applications.

 

Material Selection

  • We carefully select materials resistant to corrosion and abrasion to ensure long equipment life

Installation and Commissioning

  • Our experts provide comprehensive support to ensure seamless integration of agitator systems.

Seals and Bearings

  • High-performance seals and bearings are used to withstand harsh FGD conditions.

 

Benefits of Verito Agitation Solutions

 

  • Improved FGD system efficiency and reliability
  • Reduced operating costs through energy savings and lower maintenance
  • Enhanced environmental performance by maximizing sulfur dioxide removal
  • Extended equipment life through robust design and material selection
  • Expert support and service throughout the project lifecycle

 

For more information on how Verito’s FGD agitators can enhance your operations, contact our team today. We are dedicated to providing solutions that are as unique as your process needs.

 

 

Know more about mixing Technology

 

These mixer agitators are comes in several specifications as per the need of our customers. The offered mixer agitators are tested from our end in order to deliver a defect free range to customer's end. Our mixer agitators are developed with quality material under the direction of skilled professionals.

 

We ensure the highest quality & performance of our Agitators. At the same time, we have a very strong performance track record of supplying various types of agitators for various applications.

 

Ask more to our Agitator Design Experts

 

  • Tip Speed
  • Pumping Capacity
  • Detention Time
  • ChemScale
  • Velocity gradient
  • Torque
  • Specific Power
  • Material of Construction

 

Agitator Manufacturing Champions

 

  • Accuracy of Machining
  • Lathe Machine, CNC, VMC
  • Qualified & Approved Welding Procedures

 

Tests Conducted by the Verito Quality Specialties

 

Performance
  • Run Trail
  • Noise
  • Vibration
  • RPM
  • Current
Dimensional
  • Run Out
  • DFT
  • Dimensions
  • Dynamic & Static Balancing
Chemical & Mechanical
  • UT
  • PMI
  • DP
  • PT

 

Final Assembly

 

  • We care about the Aesthetics of our Products

 

CFD in Mixing Technology
What is CFD ?

 

  • Computational Fluid Dynamics (CFD) represents an approved approach within the realm of fluid mechanics. Its widespread application is evident in industries such as automotive, aircraft, process, and mixing.
  • The primary objective of CFD is to address fluid flow-related inquiries by leveraging numerical techniques. The governing equations typically revolve around principles like Navier-Stokes, Euler, or potential-based equations.

 

Flow Simulation at Verito

 

  • Verito leverages cutting-edge Computational Fluid Dynamics (CFD) technology, alongside laboratory experiments and field trials, to design, scale-up, enhance, or modernize agitators and mixing systems.
  • Verito’s engineers utilize CFD technology to gain an in-depth understanding of velocity distribution, flow patterns, areas with low velocity (referred to as dead zones, as illustrated in Figures 1, 2 & 3), as well as regions with both low and high shear rates within various mixing system configurations.
  • This enables the testing of multiple system setups and tank agitator designs to achieve optimal performance. Additionally, CFD technology aids Verito in fine-tuning impeller blade designs to strike a balance between power requirements and pumping capacity.

 

Key Outcomes of CFD-Studies

 

  • In-depth Information of Flow pattern
  • Areas with the potential of low mixing intensity can be pinpointed and rectified.
  • Availability of crucial process parameters like shear and energy dissipation
  • Evaluation of different design options
  • Shortened project timelines for complex process mixing systems
  • Mitigation of project risks
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