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HZG series rotary drum dryer

Introduction: working principleAfter the wet material is input from one end of the dryer, the material is evenly distributed and dispersed in the dryer under the turning of the evenly distributed plate copying device in the inner cylinder, and fully contacted with …

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working principle
  After the wet material is input from one end of the dryer, the material is evenly distributed and dispersed in the dryer under the turning of the evenly distributed plate copying device in the inner cylinder, and fully contacted with the co-current (counter-current) hot air, which speeds up the drying and heat transfer. Pass to the driving force. During the drying process, the material can be moved to the other section of the dryer to discharge the finished product under the action of the inclined plate and the hot air flow.
Adapt to materials
◎In the chemical, mining, metallurgical and other industries, large particles and dry materials with high specific gravity, such as mines, blast furnace slag, coal, metal powder, phosphate fertilizer, and ammonium sulfate
◎Dry powder and granular materials with special requirements, such as HP foaming agent, vinasse, light calcium carbonate, activated clay, magnetic powder, graphite, and medicine residue.
◎Materials that require low-temperature drying and continuous drying in large quantities.

Performance characteristics
◎The drum dryer has a high degree of mechanization and a large production capacity.
◎The resistance of fluid passing through the cylinder is small, and the function consumption is low.
◎Strong adaptability to material characteristics.
◎The operation is stable, the operation cost is low, and the product drying uniformity is good.

Schematic

回转滚筒干燥机
Technical specifications

model

Direct heating

 downstream

Direct heating

 downstream

Direct heating

 countercurrent

Direct heating 

countercurrent

Compound 

heating

Compound

 heating

Material type ore HP blowing agent Blast furnace slag Ammonium Sulfate Phosphate Fertilizer coal

Processing

 capacity(kg/h)

1000 466 15000 20000 12000 5000
Water content(%) 30 13 6 1.5 5 6.5
Final water content(%) 15 0.3 1 0.1 0.1 0.1

The average

 particle size(mm)

6.5 0.05 4.7 0.5-1.7 0.5 5

Heavy material 

accumulation(kg/m3)

770 800 1890 1100 1500 750
Hot air volume(kg/h) 3900 5400 10750 9800 6500 16000

Inlet gas 

temperature(℃)

600 165 500 180 650 570

Material outle

t temperature(℃)

  42 100 70 80 75
heating method gas Steam electric heating heavy oil Coal-fired hot blast stove heavy oil heavy oil
Loading factor   6.3 7 7.5 7.8 18
Rotating speed(rpm) 4 4 3.5 3 4 2
Inclination 0.04 0.005 0.03 0.05 0.05 0.043

Number of 

copy boards

12 24 12 22

Outside the inner

 cylinder8

Outside the inner 

cylinder16

6 12
Dryer diameter(m) 2.0 1.5 2 2.3 Outer tube2
Inner tube0.84
Outer tube2.4
Inner tube0.95
Length of dryer(m) 20 12 17 15 10 16
Driving power(kw) 22 7.5 15 11 11 15
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