summary:
After being fed into one end of the dryer, the wet material is evenly distributed and dispersed inside the dryer by flipping the plate reader evenly distributed in the inner cylinder, and flows in parallel (counter current)The full contact of hot air accelerates the driving force of drying and mass transfer. During the drying process, the material can be controlled to move to the star shaped discharge valve at the other end of the dryer to discharge the finished product under the action of the inclined plate and hot air flow.
Application:
In industries such as chemical, mining, and metallurgy, large particles with high specific gravity are dried, such as ores, blast furnace slag, coal, metal powders, phosphate fertilizers, and ammonium sulfate.
Drying of powder and granular materials with special requirements, such as HP foaming agent, distiller's residue, light calcium carbonate, activated clay, magnetic powder, graphite, and slag.
Materials that require low-temperature drying and require continuous drying in large quantities.
characteristic:
The rotary dryer has a high degree of mechanization and a large production capacity.
The fluid has low resistance and low functional consumption when passing through the cylinder.
Has strong adaptability to material characteristics.
Stable operation, low operating costs, and good uniformity of product drying.
Technical parameter table:
model | Direct heating downstream type | Direct heating counter current type | Composite heating | |||
Material type | ore | HP foaming agent | blast furnace slag | ammonium sulfate | phosphate fertilizer | Coal coal |
Processing capacity kg/h | 1000 | 466 | 15000 | 20000 | 12000 | 5000 |
Initial moisture 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 | 0.5-0.7 | 0.5 | 5 |
Material stacking density kg/m2 | 770 | 800 | 1890 | 1100 | 1500 | 750 |
Hot air intensity m3/kg | 39000 | 5400 | 10750 | 9800 | 6500 | 16000 |
Inlet gas temperature ℃ | 600 | 165 | 500 | 180 | 650 | 570 |
Material export temperature ℃ | 42 | 100 | 70 | 80 | 75 | |
Heating method | gas | Steam electric heating | heavy oil | JRF | heavy oil | heavy oil |
loading coefficient | 6.3 | 7 | 7.5 | 7.8 | 18 | |
RPM (revolutions per minute) | 4 | 4 | 3.5 | 3 | 4 | 2 |
Tilt angle m/m | 0.04 | 0.005 | 0.03 | 0.05 | 0.05 | 0.043 |
Number of copied boards | 12 | 24 | 12 | 22 | Outer side of inner cylinder 8 Outer cylinder inner surface 16 |
Outer side of inner cylinder 6 Outer cylinder inner surface 12 |
Drier diameter m | 2.0 | 1.5 | 2 | 2.3 | Outer tube 2 Inner cylinder 0.84 |
Outer tube 2.4 Inner cylinder 0.95 |
Drying machine length m | 20 | 12 | 17 | 15 | 10 | 16 |
Drive power kw | 22 | 7.5 | 15 | 11 | 11 | 15 |
Note: Some parameters may be adjusted according to different materials during design, and the design shall prevail