Difference between revisions of "Air Dispersion Dryers"

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The '''Air Dispersion Dryers''' are used for drying applications of wet cakes, pastes, sludges and  production of powders from aqueous suspension. Due to the dewatering  mechanism, these dryers provide effective solutions and converted to  either filter cakes, pastes or sludges. These air dispersion dryers are  chosen on the basis of wet deed cake particle size distribution of final  powder and drying curve. Our range of air dispersion dryers includes  spray dryers, rotary dryers, flash dryers, spin flash dryers, vibrated  fluid bed dryers and fluid bed dryer.
 
==Features==
* Smooth functionality
* Easy operation
* Durable performance
==Spin Flash Dryers==
If the wet cake is a paste or sludge, swirl flash  dryer is the most suited for drying application. The dryer is fitted  with a mechanical agitator which helps to disperse the wet cake without  any need for back mixing of the dry powder. the feeding system  includes a feed tank with agitator and a screw feeder for feeding into  the drying unit. The heart of drying process is cylindrical drying  chamber, where the drying air enters the air distributor. The tangential  air distributor of special design introduces the air as an intense  swirl flow. the simple spin flash dryer is designed to handle  materials that can be suspended directly in air. The drying process  usually is completed in 0. 5 - 2 sees, and the final moisture is generally in the constant rate drying zone. Various types of spin flash  dryers designs are available based on uniform / non uniform particle  size of the feed / product. the feeding of cake is through  specially designed paddle mixer / screw conveyor with / without rotary  injector depending on rheology of feed material. For difficult to handle  feed materials part of dried powder can be re-cycled. Spin flash dryers  are suited for filter cakes, semi dried powders.
==Rotary Dryers==
Rotary dyers that are classified as direct  or indirect (air heating method), current or counter current (material  air contact). While using the dryers the material should be dried and  uniformly dispersed over the entire cross-section. These dyers can also  be customized based on the properties of the material.
===Features===
* Material is Passage through heated air
* Dryer is driven through a girth gear and tyre arrangement
* Minimum air leakage
 
===Advantages===
* Low operating costs* Low maintenance costs
* Ideally suited for high volumes
* High thermal efficiency
 
'''These dryers are used to handle following material'''
* Sand
* Clays
* Maize germs
* Coal
* Ore
* Industrial sludge
==Fluid Bed Dryers==
Fluid Bed Dryers are known for single stage operation and extensively used to convert  solutions, suspensions, and slurries into dry powder within a few  seconds without any intermediate handling. The high speed of the process  and controlled temperature ensure the optimum efficiency of the  process.
===Feature===
Easy to install
High functionality
Optimum performance
Smooth operation

Revision as of 07:24, 24 July 2012


The Air Dispersion Dryers are used for drying applications of wet cakes, pastes, sludges and production of powders from aqueous suspension. Due to the dewatering mechanism, these dryers provide effective solutions and converted to either filter cakes, pastes or sludges. These air dispersion dryers are chosen on the basis of wet deed cake particle size distribution of final powder and drying curve. Our range of air dispersion dryers includes spray dryers, rotary dryers, flash dryers, spin flash dryers, vibrated fluid bed dryers and fluid bed dryer.

Features

  • Smooth functionality
  • Easy operation
  • Durable performance

Spin Flash Dryers

If the wet cake is a paste or sludge, swirl flash dryer is the most suited for drying application. The dryer is fitted with a mechanical agitator which helps to disperse the wet cake without any need for back mixing of the dry powder. the feeding system includes a feed tank with agitator and a screw feeder for feeding into the drying unit. The heart of drying process is cylindrical drying chamber, where the drying air enters the air distributor. The tangential air distributor of special design introduces the air as an intense swirl flow. the simple spin flash dryer is designed to handle materials that can be suspended directly in air. The drying process usually is completed in 0. 5 - 2 sees, and the final moisture is generally in the constant rate drying zone. Various types of spin flash dryers designs are available based on uniform / non uniform particle size of the feed / product. the feeding of cake is through specially designed paddle mixer / screw conveyor with / without rotary injector depending on rheology of feed material. For difficult to handle feed materials part of dried powder can be re-cycled. Spin flash dryers are suited for filter cakes, semi dried powders.

Rotary Dryers

Rotary dyers that are classified as direct or indirect (air heating method), current or counter current (material air contact). While using the dryers the material should be dried and uniformly dispersed over the entire cross-section. These dyers can also be customized based on the properties of the material.

Features

  • Material is Passage through heated air
  • Dryer is driven through a girth gear and tyre arrangement
  • Minimum air leakage

Advantages

  • Low operating costs* Low maintenance costs
  • Ideally suited for high volumes
  • High thermal efficiency

These dryers are used to handle following material

  • Sand
  • Clays
  • Maize germs
  • Coal
  • Ore
  • Industrial sludge

Fluid Bed Dryers

Fluid Bed Dryers are known for single stage operation and extensively used to convert solutions, suspensions, and slurries into dry powder within a few seconds without any intermediate handling. The high speed of the process and controlled temperature ensure the optimum efficiency of the process.

Feature

Easy to install High functionality Optimum performance Smooth operation