The document describes a cylinder dryer machine used for drying fabrics. It uses indirect drying through heated stainless steel cylinders. The fabric moves over several heated drums where it is dried at temperatures of 120-130°C using steam at pressures of 1-3 atm. This is an efficient and low-cost drying method suitable for intermediate drying of flat fabrics that cannot withstand high tension. The main components of the cylinder dryer are the hollow cylinders, guide rollers, free rollers and pin rollers. Proper maintenance such as checking motor RPM, even heating of cylinders, and ensuring smooth roller movement is important.

1. Cylinder Dryer

3. Description:
1. Indirect drying using Stainless Steel Cylinders.
2. suitable for one or two sided drying of all types of fabrics.
3. High Efficiency method for intermediate or final drying.
Cylinder drier m/c

4. 1. Drum dryer: with this system, the fabric moves forward arranged
on several heated drums.
2. The drying temperature ranges between 120-130° C and the
cylinders are heated by means of steam at a pressure of 1-3 atm.
3. This very efficient and low-cost drying system is particularly
suitable for flat fabrics, with slightly evidenced structure, which
cannot be easily affected by tension during feeding.
4. Used for intermediate drying and for light finishes; this system is
not suitable for durable thermosetting resin finishes.
Contact drying

5. 1. To know the gearing mechanism.
2. To know the different types of maintenance.
3. To inspect different controlling points.
Objects:

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Condensed water outlet pipe
Fig: Schemetic diagram of Cylinder Dryer Machine
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8. Main parts:
1. Hollow cylinder
2. Guide roller
3. Free roller
4. Pin roller
Utilities:
1. Electricity
2. Water
3. Steam
Main parts:

9. Guide roller:
Here we have to look over the movement of guide roller. We have to
provide the steady of guide roller or without movement of guide roller.
Free roller movement:
Free roller should be move freely as the path of material. So we always
look over of the free movement of free roller.
Proper gearing:
It is very important that the lack of proper gearing will hamper the
correct function. So we have to maintain the gearing properly.
Maintenance

10. Motor revolution:
For proper speed the correct rpm(10 to 150) of motor should be check
as maintenance.
Proper heating:
We have to confirm of even & proper heating of every cylinder as the
action of drying.
Uses of cylinder dryer:
1. To dry the fabric
2. To remove the remaining excess water from fabric.
Maintenance

11. .
Technical Details
Cylinder Width 1200 to 3600 mm
No of Cylinders per stack 2 to maximum 12
Cylinder Diameter 400, 570, 762 or 800 mm
Design Pressure 5 Bar
Drive Belt Drive, Individual or
Alternate Motor Drive
Speed 10 to 150 mtrs/min

12. No Steam Trap / Group Trapping in Vertical Cylinder Dryer

14. General Practice in Vertical Dryers
Group trapping
4 bar(g)
Over
heated +
excess
dried
cloth