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  • HZG Rotary Drum Dryer
  • HZG Rotary Drum Dryer

HZG Rotary Drum Dryer

Overview: Wet material is loaded from one head of the dryer , and then it is stirred by the bafflers that is uniformly distributed in the barrel. Material is uniformly distributed and dispersed in the dryer , fully contact the hot air of parallel…


Rotary Drum Drier is a kind of dryer with rotating cylinder body which is a little bit incline. The wet material is loaded from one end from the screw material adding device continuously, and is stirred by the bafflers that are uniformly distributed in the barrel.

The material is uniformly distributed and dispersed in the dryer and fully contacts the hot air of counter flow. When the material passing through the cylinder inside surface, it will contact with the hot air circling inside and being dried .Most of the dried product will be discharged from the other end of the dryer. Small part of the fine granule goes into the cyclone separator with the exhaust air. The powder will be separated and collected, and the exhausted air will be ejected to the atmosphere. During the drying course, the material will slowly move to the lower end from the higher part recur to the slowness rotating of the cylinder.

(1) Large throughput capacity and continuous operation
(2) Simple configuration and easy to operate
(3) Good adaptability of materials
(4) Low energy consumption
(5) Low maintenance cost

This dryer widely used in the following industries:
-Drying large particles and heavy material for chemical, mining, metallurgy and other industries, such as mining, blast furnace slag, coal, metal powder, fertilizer, ammonium sulfate.
-Drying powder or granular materials which have special requirements, such as HP vesicant, lees residue, precipitated calcium carbonate, activated clay, magnetic powder, graphite, dregs.
-Drying the material which required low-temperature and continuous drying process.

Rotating Barrel Dryer

Technical Parameter

Model direct heating clockwise way direct heating clockwise way direct heating counterclockwise way direct heating counterclockwise way compound heating compound heating
kinds of raw material Ore HP Vesicant Blast furnace slag Ammonium sulfate Phosphate Coal
Amount to treated (kg/h) 1000 466 15000 20000 12000 5000
Primary moisture (%) 30 13 6 1.5 5 6.5
Final moisture (%) 15 0.3 1 0.1 0.1 0.1
Average diameter (mm) 6.5 0.05 4.7 0.5-1.7 0.5 5
Bulk density of raw material (kg/m3) 770 800 1890 1100 1500 750
Amount of hot air (kg/h) 3900 5400 10750 9800 6500 16000
Temperature of air at inlet (oC) 600 165 500 180 650 570
Temperature of raw material at outlet(oC)   42 100 70 80 75
Way of heating Gas Steam,electric heating Heavy oil Coal fuel hot air furnace Heavy oil Heavy oil
Filling coefficient   6.3 7 7.5 7.8 18
Revolution (rpm) 4 4 3.5 3 4 2
gradient 0.04 0.005 0.03 0.05 0.05 0.043
Quantity of stirring-up rake 12 24 12 22 Outer of inner cylinder 8
Inner of Outer cylinder 16
6 12
Diameter of drier (m) 2.0 1.5 2 2.3 Outer cylinder 2
Inner cylinder 0.84
Outer cylinder 2.4
Inner cylinder0.95
Lenght of drier (m) 20 12 17 15 10 16
Driving power (kw) 22 7.5 15 11 11 15

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HZG Rotary Drum Dryer
HZG Rotary Drum Dryer
HZG Rotary Drum Dryer
HZG Rotary Drum Dryer

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