Hengyang Rotary Dryer .pdfSilica Sand Double Shell or Drum Rotary Dryer
Double drum rotary dryer is a drying device, widely used in mining
equipment.It can be divided into two categories,direct and indirect
heat transfer drum dryers.
Double Drum Dryer(Rotary Dryer) is a combination of advanced
technology both at home and abroad .This roasting machine is mainly
used to dry the limestone slag,coal powder,slag,clay stone in the
production of building materiasl. It is also applied to chemical
,metallurgical and cement industries.
Operating Principle of Silica Sand Double Shell or Drum Rotary
Dryer:
Wet feed is charged as a batch and is subjected to indirect heating
while undergoing agitation due to the action of tumbling. The
operation is normally carried out in vacuum. Recovery of solvent is
possible by condensing the vapours generated during the drying
operation.
Silica Sand Double Shell or Drum Rotary Dryer Main internal
structure:
In order to increase the material evenly distributed in the rotor
parts of the cross section in good contact with the drying medium,
in the cylinder body installation raise plates.There are several
types of elevating plate.
1). Lifting type: For large or easy to bond the material in the
tube wall
2). Four formats type: Suitable for big density, not crisp or not
easily scattered materials.The raise plate will be divided into
four pane,and were mutually connected fan-shaped workout room,
Materials and the contact surface of the hot gas than large of the
lifting type, And also can increase of the filling material rate
and reduce material landing height and reduce dust quantity loss
and so on.
3). Cross-shaped or frame-shaped:applicable to brittle and easy
dispersion small pieces of material,make the material can be evenly
dispersed in cylinder whole section.
4). Sleeve type:For double entry Heat transfer for the double (or
half the diameter heating) rotary drum dryer raise plate.
5). Separate format(fan): For very fine particles and the material
prone to flying powder.materials accumulate on grid board when it
into,then cylinder rotates, the material is turning and continue
contacts with the hot gases, at the same time, the decrease of
height landing, reducing the dry material being gas away
possibility
Silica Sand Double Shell or Drum Rotary Dryer Special Features:
1. Granular wet materials can be handled.
2 . Low temperature operation is possible.
3. Solvent recovery can be carried out
4. System is batch
5 . High energy efficient
6. Mode of heating is indirect
8. Closed operation
Silica Sand Double Shell or Drum Rotary Dryer Tehcnical Details:
Model
| unit | Φ2.0×7m | Φ2.5×7.5m | Φ3.2×8m | Φ3.6×8.5m | Φ4.2×9m |
| Drum diameter | m | 2.0 | 2.5 | 3.2 | 3.6 | 4.2 |
| Drum length | m | 7 | 7.5 | 8 | 8.5 | 9 |
| Drum Capacity | m3 | 21.98 | 36.8 | 64.3 | 86.48 | 124.6 |
| Rotate speed | rpm | 4-10 | 4-10 | 4-10 | 4-10 | 4-10 |
| Input moisture | % | 8-20 | 8-20 | 8-20 | 8-20 | 8-20 |
Output moisture
| % | ≤1 | ≤1 | ≤1 | ≤1 | ≤1 |
Inlet temprature (max.) | degrees | 750-900 | 750-900 | 750-900 | 750-900 | 750-900 |
| Capacity | T/h | slag | 12-18 | 22-25 | 30-38 | 40-48 | 55-65 |
| flyash | 8-10 | 15-20 | 25-30 | 35-40 | 40-50 |
| coal | 8-10 | 13-18 | 23-28 | 33-38 | 40-45 |
| sand | 15-20 | 23-28 | 35-43 | 40-50 | 60-70 |
| Motor model | | Yr160m-4 | Yr132m-4E | Yr132m-4E | Yr160m-4E | Yr160m-4E |
Motor power
| kw | 5.5×2 | 7.5×2 | 7.5×4 | 11×4 | 15×4 |
| Reducer model | | XWD-6 | XWD-6 | XWD-6 | XWD-6 | XWD-6 |
| Reducer rotate speed | I | 23-29 | 23-29 | 23-29 | 23-29 | 19-22 |
