Changzhou Solution Magnetic Powder Drum Dryer Machine for Solution
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Product Description
Su li dry professional production rotary dryer.
The rotary dryer is a type of industrial dryer employed to reduce
or minimize the liquid moisture content of the material it is
handling by bringing it into direct contact with a heated gas.
The dryer is made up of a large, rotating cylindrical tube, usually
supported by concrete columns or steel beams. The dryer is inclined
to slopes slightly so that the discharge end is lower than the
material feed end in order to convey the material through the dryer
under gravity. Material to be dried enters the dryer, and as the
dryer rotates, the material is lifted up by a series of internal
fins lining the inner wall of the dryer. When the material gets
high enough to roll back off the fins, it falls back down to the
bottom of the dryer, passing through the hot gas stream as it
falls. This gas stream can either be moving toward the discharge
end from the feed end (known as co-current flow), or toward the
feed end from the discharge end (known as counter-current flow).
The gas stream can be made up of a mixture of air and combustion
gases from a burner, in which case the dryer is called a direct
heated dryer. Alternatively, the gas stream may consist of air or
another (sometimes inert) gas that is preheated. When the gas
stream is preheated by some means where burner combustion gases do
not enter the dryer, the dryer known as an indirect-heated type.
Often, indirect heated dryers are used when product contamination
is a concern. In some cases, a combination of direct-indirect
heated rotary dryers are also available to improve the overall
efficiency.
Adapt to the material
1chemical, mining, metallurgy and other industries large particles,
dry material than the major, such as: mines, blast furnace slag,
coal, metal powder, phosphate fertilizer, ammonium sulfate.
2For the drying of powder and granular materials with special
requirements, such as: HP foaming agent, distiller's grains, light
calcium carbonate, activated clay, magnetic powder, graphite, and
dregs.
3Requires low-temperature drying, and large batches of continuous
drying materials.
Performance characteristics
4Rotary dryer has a high degree of mechanization and a large
production capacity.
5The resistance of the fluid through the cylinder is small and the
function consumption is low.
6The adaptability to material properties is relatively strong.
7Stable operation, low operating cost, and good product drying
uniformity.
Schematic
Technical specifications
model | Direct heating downstream | Direct heating downstream | Direct heating countercurrent | Direct heating countercurrent | Composite heating | Composite heating |
Material type | ore | HP foaming agent | Blast furnace slag | Thiammonium | Phosphate fertilizer | coal |
Processing capacity (kg/h) | 1,000 | 466 | 15000 | 20000 | 12000 | 5000 |
Water content (%) | 30 | 13 | 6 | 1.5 | 5 | 6.5 |
Final moisture content (%) | 15 | 0.3 | 1 | 0.1 | 0.1 | 0.1 |
Average particle size (mm) | 6.5 | 0.05 | 4.7 | 0.5-1.7 | 0.5 | 5 |
Material accumulation weight (kg/m 3 ) | 770 | 800 | 1890 | 1100 | 1500 | 750 |
Hot air volume (kg/h) | 3900 | 5400 | 10750 | 9800 | 6500 | 16000 |
Inlet gas temperature ( oC) | 600 | 165 | 500 | 180 | 650 | 570 |
Material outlet temperature ( o C) | | 42 | 100 | 70 | 80 | 75 |
heating method | gas | Steam heating | heavy oil | Coal hot stove | heavy oil | heavy oil |
Loading factor | | 6.3 | 7 | 7.5 | 7.8 | 18 |
Speed (rpm) | 4 | 4 | 3.5 | 3 | 4 | 2 |
Tilt | 0.04 | 0.005 | 0.03 | 0.05 | 0.05 | 0.043 |
Copy board number | 12 | twenty four | 12 | twenty two | Inner cylinder outer 8 Inner cylinder outer 16 | 6 12 |
Dryer diameter (m) | 2.0 | 1.5 | 2 | 2.3 | Outer cylinder 2 inner cylinder 0.84 | Outer cylinder 2.4 Inner cylinder 0.95 |
Dryer length (m) | 20 | 12 | 17 | 15 | 10 | 16 |
Drive power (kw) | twenty two | 7.5 | 15 | 11 | 11 | 15 |