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Agitator, Mixer, Stirrer Mixing Machine
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Agitator

agitator stirrer mixer

With an experience of over two decades in handling the various process applications in Dyes, Intermediates, Pigments, Pesticides, Fine Chemicals, Rubber Chemicals, Bulk Drugs, API and Nutraceuticals. We offer well-engineered and optimum agitation solutions, mixing agitators, industrial agitators, chemical agitator, industrial agitator, chemical agitators, for all your Mixing Tasks.

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Agitator Description :

Offering Agitators for Various Mixing Application like:

Along with the ability for Design and Fabrication of Agitator For Process Vessels, we offer complete mixing agitators, chemical agitators, mixers, blenders, reactors with shortest deliveries for trouble free lifelong operations

Agitators: Types, Uses and Parts

Agitators are equipment used to homogenize media inside a tank. They operate by rotating immersed impellers at a controlled speed, known as revolutions per minute (RPM). The impeller's action induces flow and shear within the tank, facilitating the homogenization of single or multi-component media. This ensures that the media flows uniformly and maintains a consistent pattern.

Agitators serve various functions in industrial plants, including:

  • Homogenizing solutions and suspensions to achieve a uniform consistency
  • Maintaining solutions in a mixed state and preventing concentration gradient
  • Dispersing a gas into a liquid solvent
  • Promoting chemical reaction inside a reactor
  • Maintaining a consistent temperature of the solution inside a vessel
  • Promoting heat transfer to a jacket
What are the different types of agitators used in?

Paddle Agitators

Paddle agitators consist of two flat paddle-shaped impeller blades extending to reach the tank walls. They are used if no extensive axial and radial flow is required. These impellers can produce a laminar low shear flow and are used for low viscosity liquid mixing, crystallization, dissolution, and heat transfer. They are typically operated at low speeds and predominantly give a tangential flow pattern. Secondary blades can be installed on the paddle blades to enhance the mixing of more viscous materials.

The impeller blades are inclined relative to the plane of rotation, creating an axial flow pattern. This design is commonly used for homogenizing suspensions and is a variation of the paddle agitator.

Anchor Agitators

Anchor agitators feature impellers shaped like anchors, typically with a U-shape that matches the tank's contour. They predominantly generate a tangential flow pattern but can incorporate angled blades on their horizontal supports to produce an axial flow.

These agitators are used for blending and heat transfer of highly viscous liquids. Their impellers create a laminar, low-shear flow, making them ideal for mixing shear-sensitive media. Anchor agitators are among the most economical options for laminar flow agitation and are suitable for tanks with rounded or conical bottoms. The impeller design allows for low clearance with the tank wall.

Helical Ribbon Agitators

Helical ribbon agitators feature a helical impeller blade mounted on a shaft by rods. These impellers serve as an alternative to anchor impellers and are designed to generate an axial flow pattern. They provide a higher fluid contact area, making them effective for mixing fluids with higher viscosities.

Double Helical Ribbon Agitators

Double helical ribbon agitators feature two helical blade flights running through the shaft in opposite directions. This design improves the mixing of more viscous fluids. They are also used in heat transfer applications and are regarded as the best impeller for high-viscosity laminar flow. The impeller can be designed with low clearance to the tank wall.

Propeller Agitators

Propeller agitators primarily produce an axial flow pattern, though they can also create a tangential flow. The fluid is displaced and accelerated along the length of the tank as the impeller blades draw it in. The inclination of the impeller blades affects how the fluid is deflected. These blades are tapered towards the shaft to minimize centrifugal force and maximize axial flow.

Operating at medium to high speeds, propeller agitators often use marine propellers.

They are commonly used for homogenizing, dispersing, and suspending low-viscosity products. In solid-liquid suspension systems and chemical reactors, propeller agitators help prevent solids from settling at the tank bottom. They can be installed in unbaffled tanks, either vertically inclined from the centerline or positioned off-center.

Agitator Type
Applications
Advantages
Disadvantages
Anchor
* Highly used in Pharma Industry for Several Operations
* Increase possible heat transfer rate in reactors, from reactor heat transfer surface to Mass.
* Required high Efficiency Gearbox,
* Required high Power.
Paddle
* Mixing of Solids,
* Slurry Mixing,
* Used during Crystals
 forming phase during
Super saturated Cooling
* Heavy duty,
* Apt for Slow operation,
* Can have 2 or 4 blades
* Power Consumption is very high,
* Inefficient Mixing
Propeller
* Suitable for GLR's, ANFD's, can handle Corrosive materials with Glass lining.
* Will increase the homogeneity,
* Can be used in two different patterns for drying and pressing. 
* Need to be operated at high speed to avoid solid settlings in reactors.
* Need to be operated at low speeds in drying operations.
Turbine *Straight Blade
*Pitched Blade
*Curved Blade
*Disk Blade
* Liquids and Gas reactions,
* Highly used during Reaction and Extraction Operations.
* Generates high  Radial Flow,
* Highly used for  dispersion operations
* Not preferred for solvents with high viscosity[NMT 20 cP]
Screw type
* Have to use in addition  to other agitators.
* Mostly used in Food processing.
* Uniform mixing of High viscous masses.
* Not preferred for im-miscible solvents.
Helical Blade
*Ribbon Type
*Helical Screw
* Most Probably used in Paint industry.
* Can handle Visco-elastic liquids efficiently
* Low possibility for Radial mixing
Gate
* Highly used for blending Operations
* Provides efficient Mixing and agitation control,
* Can handle Psuedo-plastic liquids.
* Not preferred when both liquids and gases combine involves 

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Mobile No.: +91 9879091953 - Mr. Hitesh Gandhi
Phone No.: + 91 79 22748046
sales@abfindia.co.in
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