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Drum Dryer
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Drum Dryer |
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PRINCIPLES OF OPERATION:
The feed stock is introduced into a single
or twin steam heated drum/s in a uniform film by use of variety of feeding devices and arrangements depending upon the material to be dried.The moisture is dried off in less than one revolution and the dried solid is removed usually in the form of a thin sheet/powder by doctor blade.
ADVANTAGES:
Minimum Thermal degradation
High thermal efficiency
Fine and spheroidal product
Minimum labor requirements
High output
Continous process
Accomplishment of drying in single step,eliminating need for any intermediate concentration processes.
more...- Shanta Flaker And Dryer Company Private Limited
RVDF, Drum Dryer, Drum Flaker
- Sharpenn Technologies Pvt. Ltd.
Operating Principle
Hot air at desired temprature and flow rate is made to flow through the tumbling bed of wet feed. The wet material gets progressively dried to the final level of desired moisture and exits at the discharge end. The humid air carrying moisture transferred from the drying material is exhausted via a dust separator.
Special Features of Rotary Louvre Dryer
- Can handle both, surface and bound moisture in the drying solids
- Very gentle handling of drying solids avoiding attrition.
- Excellent mixing action ensures uniform drying of all the particles.
- High thermal efficiency
- Continuous operation
- Compact installation
- Minimum electrical power
Typical Applications
more...- Arrowhead Seperation Engg. Pvt. Ltd.
Operating Principle
This drum dryer is basically a conduction dryer. Wet feed film (in liquid or paste form) is applied to the rotating metal cylinder inside which, a heating medium is supplied. Material film dries to the final moisture level and is scraped off.
Special Features of Drum Dryer
- Suitable for handling liquid or pasty feeds.
- Product is powdery, flaky form
- Uniform drying due to uniform application of film.
- Medium range capacities.
- Very High thermal efficiency
- Continuous operation
- Compact installation
- Closed construction is possible
Typical Applications
more...- Arrowhead Seperation Engg. Pvt. Ltd.
PRINCIPLES OF OPERATION:
The feed stock is introduced into a single
or twin steam heated drum/s in a uniform film by use of variety of feeding devices and arrangements depending upon the material to be dried.The moisture is dried off in less than one revolution and the dried solid is removed usually in the form of a thin sheet/powder by doctor blade.
ADVANTAGES:
Minimum Thermal degradation
High thermal efficiency
Fine and spheroidal product
Minimum labor requirements
High output
Continous process
Accomplishment of drying in single step,eliminating need for any intermediate concentration processes.
more...- Shanta Flaker And Dryer Company Private Limited
Operating Principle
Feed in the form of melt is applied as a thin film over the rotating metal cylinder, internally cooled. The melt is solidified to a solid layer which is scraped out as flakes.
Special Features of Cooling Drum Flaker
- Product has easy to handle flake form.
- Melts with wetting property to metal surface, can be flaked.
- Low power demand
- Continuous operation
- Compact installation
- Closed construction available
- To minimise vapour nuisance
- To avoid dust contamination
- For inert gas blanketing
- For maintenance of suction conditions for purposes of operator comfort.
- For maintenance of low RH air blanket.
Applications of Drum Flaker more...- Arrowhead Seperation Engg. Pvt. Ltd.
The system is employed for evaporation of water ; crystallization /separation of dissolved inorganic salts like Sodium Sulphate / Sodium Chloride / Manganese Sulphate etc.and drying of these solids. Additionally water is recovered making this system also a Zero Discharge System.
FILTRATION STAGE : Pre filtration of effluent stream to remove suspended solids. Pressure leaf filters ( PLF/CD ) with mechanised discharge are employed for this operation.
EVAPORATION STAGE : Multiple Effects Evaporator are used to get the required final concentration of liquid stream. Steam economy of high order is achieved because of use of Multiple Effect Evaporatos. Thermo Compressor is also employed to get additional steam economy. Concentrations upto 20% are achieved by using conventional Forced Circulation Evaporators. Higher concentration is obtained in Crystallizing Evaporator ( Oslo type ). Chance of choking more...- Arrowhead Seperation Engg. Pvt. Ltd.
Operating Principle
Granular free flowing wet feed material is made to shower repeatedly in a cascade manner in a stream of hot air, when moisture gets transferred to the air, rendering the product progressively dry as it travels the length of the dryer cylinder provided with suitable lifters. The humid air is exhausted via a dust collection system to trap any fines escaping with the exhaust air.
Special Features of Rotary Cascade Dryer
- Suitable for free flowing granular feeds.
- Intimate contact with air results in uniform drying.
- Large evaporation capacities.
- Gentle drying
- High thermal efficiency
- Low power demand
- Continuous operation
Typical Applications
more...- Arrowhead Seperation Engg. Pvt. Ltd.
Our company also manufactures a range of dryers for different applications in the chemical industry. These vary according to the fuel it is used on and can be customized according to the use for the clients. Our expertise consists of tray type / drum type / tunnel type / flash type / spin flash type/ rotary drum type/ fluid bed – batch/continuous type of dryers.
- Swami Vessels Private Limited
We are engrossed into manufacturing three types of Rotary Drum Dryers namely: more...
- Jyoti Engineering, Navi Mumbai
Drying, Cooling, Composing, Maturing & Granulating. The wet feed
is fed continuously to the drying drum by means of feeding devices
adapted to suit the characteristics of the product. Scoops located at
the intake collect the material and convey to the drum internals. The
choice of internals to be installed will depend on the drying
characteristics of the product. In most cases internals are selected to
facilitate free flow, thus obtaining intensive convective heat and mass
transfer rate between the drying gases and the veil of the product
showering down. The alternative is to select internals that will
facilitate a rolling-down motion, in which case heat transfer is
effected primarily by contact between the product and the hot surfaces
of these internals.
Rotary coolers using air as cooling medium are very much like counter
flow drying drums.Applications:Non- Metallic Minerals Industry: clay, fire clay, coal, limestone,
plaster more...- Voice Engineers Limited
