Keywords:
Spin flash dryer, Vacuum dryer, Spray drying granulator, Efficient grinder, Double tapered nixer, Vibrating screen, Stove, Dust collector
General Manager: Bo Jijun
Address: Changzhou City, Jiangsu Province Cheng Town jiaoxi
Tel: 0086-519-88901234 88905678
Fax: 0086-519-88900668
Post Code: 213116
E-mail: bojijun@aliyun.com
WORKING PRINCIPLE
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.
FEATURES
(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
APPLICATION
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.
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 |
Changzhou Qunli Drying Equipment Co., Ltd. is a professional design and manufacturing expertise drying, mixing, granulating and other equipment, is located in China's most economically developed Yangtze River Delta - a "dry town" Coke Town, thanks to the surrounding sound industrial base and advanced machinery manufacturing industry, and their own strong technical force.
