Types of Agitators – Design and Usage

Types of Agitators

 
types of agitators

Type of agitators used in reactors

Abster Equipment is a manufacturers and suppliers Types of Agitators, Stirrer. These mixers are manufactured with the highest quality materials. The Agitator Stirrer is basically designed to agitate and mix several types of viscose liquids. We offer a variety types of Agitators Stirrer. We design and manufacture a wide range of liquid agitators and slurries for all processes in the pharmaceutical, chemical, food, cosmetic and similar industries.

To meet your mixing needs, We are one of the prime Agitator Stirrer Manufacturer In India. We offer complete fluid mixing solutions for all your process needs. Side Entry Mixer, heat exchangers, high speed dispersers,Hydraulic High speed disperser reactor pressure vessels and Agitator Stirrer in India.

anchor type Agitators

Anchor Agitators: Anchor Agitators consists of a shaft and an anchored propeller that can be mounted centrally or at an angle. It is mainly used in reactors.

anchor type stirrer

Paddle Agitators: Paddle Agitators is one of the most important types of agitators whose blades reach the tank wall. A Paddle Agitators is used where a uniform laminar fluid is required. It implements heavy-duty mixing and proves to be an excellent device for low speed. Its simple structure makes the machine easy to manage.

Radial Propeller Agitators: The radial agitator consists of a propeller similar to a marine propeller. They consist of two to four blades that move in a screw-like manner, pushing the material parallel to the shaft for agitation.

propeller type agitator

Propeller Agitators: It is an axial flow high performance mixer consisting of three blades mounted on the main shaft. They are ideal for mixing low viscosity and medium viscosity fluids and improving uniformity. Propeller agitators are popular for simple mixing jobs.

turbine agitator

Turbine Agitators: Turbine Agitators are widely used to perform all types of mixing operations and to handle fluid and liquid or gas reactions of various viscosity. Its ability to produce high radial flow facilitates the dispersion operation.

turbine agitator

Helical Agitators: These agitators have blades with a twisting mechanism, just like the threads of a screw. The curve results in strenuous movement of the fluid to be agitated. Spiral mixers are best suited for mixing viscous liquids.

top entry mixer is designed for stirring low viscosity material or heavy material. It manufactured with high strength and hard surface gear transmission. Gear drive agitators utilize oversize tapered roller bearings on the output shafts to provide excess capacity to adjust the loads.

Helical Agitators: These agitators have blades with a twisting mechanism, just like the threads of a screw. The curve results in strenuous movement of the fluid to be agitated. Spiral mixers are best suited for mixing viscous liquids.

 

Applications of Agitator Stirrer

  • Seed,Bump or Innoculum tanks

  • Fermentation Products Holding

  • Antibiotics

  • Medicants Antiseptics

  • Cosmetics And Perfumes

  • Insecticides & Disinfectants

  • Compounds & General Processing

  • Shampoo

  • Shower Gels

  • Creams And Lotion

Types of agitators models, application and comparison:

Agitator models Application AdvantagesDisadvantages
Paddle:

  • Flat paddles
  • Finger paddles
  • Gate paddles
  • Solid mixing
  • Slurry mixing
  • Heavy duty mixing
  • Adjustable to 2 or 4 blades
  • Excellent for low-speed
  • High power consumption
  • Inefficient liquid circulation
Counter-rotating paddlesPaste mixing
  • Efficient in the laminar condition
  • Blending
  • Vibrates at high speed
  • Not suitable for liquid mixing
TumblingBlendingPaste and viscous material mixingNot suitable for  fluid solutions
Disk and conePolymers and dispersion preparationViscous solution mixing with 60 revolutions per secondPaste mass cannot be handled
Free shaft suspensionSugar processingSuspension, Thickening operationHigh power requirement
Impeller typeEmulsion preparations
  • Good temperature control
  • Creates axial flow
  • Good phase mixing
Not for viscous materials
Turbine agitator

  • Straight blade
  • Pitched blade
  • Vaned disk
  • Curved blade
Liquid and gas reactions
  • Excellent for dispersion operations
  • Creates good radial flow
Only for less viscous liquid below 15 to 20 Ns/m2
Slotted rotary

  • Rotating disk
Powders and
cosmetics
Unique particle size and homogeny product formation
  • Minimum axial flow
  • Operates better only for 0.1 to 0.01mm particle size solids
Screw

  • Screw in cone
Food and snack processingHomogenization of high viscous materialsNot suitable for miscibility operations
Helical

  • Ribbon type
  • Helical screw
Polymer and paints processingHandles viscoelastic liquids that are more than 20 Ns/m2Less radial flow patterns
GateBlending operations
  • Good speed control
  • Handles pseudoplastic liquids
Not suitable for gas to liquid operations
Anchor

  • Round anchor
  • Combine anchor and gate
Milk and fat processingEfficient heat exchange between the reactor walls and reaction mass (fluids)
  • High power consumption
  • Requires heavy duty gearbox
Propeller
  • Dairy and food processing
  • Chemicals processing
  • Less  Metzner –Ott shear rate constant
  • Homogenization
  • Good miscibility
  • Motion of liquid starts on one spot
  • Dead spots formation at high rotation speeds
  • The occurrence of solids settling at low speeds