The indirect heat rotary dryer design provides for heating under oxidizing, reducing, or inert
atmospheric conditions. The rotary dryer design consists
principally of a rotating cylinder that is enclosed in an electric
heating along its active length. With heat transfer indirect and
through the cylinder wall.
Applications that are appropriate for indirect heat rotary dryers
involve a wide variety of fine powders, granular materials, pellets
and extrudates that require product temperatures 200- 500°C, bed
temperature profiling and special atmospheres.
In order to get maximum utilization of radiation heat transfer, the
interior of the dryer cylinder is fitted with agitating flights or
special internals to gently handle and promote even heat transfer
to the process material.
Indirect Heat Rotary Dryer Features:
Automatic temperature, pressure and electrical controls with
furnaces featuring electrical heating elements arranged in zones.
Available in sizes ranging from 600-4500mm in diameter with lengths
from 8-35m.
Typical materials processed in indirect rotary dryers:
Alumina, Activated Carbon, Metallic Oxides, Rare Earth Compounds,
Manganese Oxide, Catalysts, Coke, Coal, Ferrites, Nuclear
Materials, Metal Scrap, Pigments
Indirect Heat Rotary Dryer Technical Details
| Type | Spec | Dia of Roll | Length of roll | Gradient | Speed(rpm) | Weight(t) | Motor Power(kw) | Heating Power (KW) |
| HY600 | φ 0.6× 8 | φ 600 | 8m | 3-5 | 8 | 5.1 | 4/6p | 45 |
| HY800 | φ 0.8× 10 | φ 800 | 10 m | 3-5 | 7.2 | 6.9 | 4/6p | 60 |
| HY1000 | φ 1.0× 10 | φ 1000 | 10m | 3-5 | 6.73 | 7.5 | 5.5/6p | 90 |
| HY1200 | φ 1.2× 12 | φ 1200 | 12m | 3-5 | 5.8 | 13.1 | 11/6p | 120 |
| HY1500 | φ 1.5× 12 | φ 1500 | 12m | 3-5 | 4.8 | 22.3 | 15/6p | 150 |
| HY2200 | φ 2.2× 14 | φ 2200 | 14m | 3-5 | 3.2 | 52.8 | 30 | 200 |
| HY2400 | φ 2.4× 18 | φ 2400 | 18m | 3-5 | 3 | 73.3 | 37 | 300 |
| HY2800 | φ 2.8× 24 | φ 2800 | 24m | 3-5 | 2.59 | 97 | 75 | 400 |
