Drum dryer description:
After the damp raw material is put into the drier from on end, it is turned over through strring-up rake inside the cylinder and distributed uniform in the drier and contacted with countercurrent hot air fully. It speeds up heat and mass conducting of dry. During the oeriod of dry, raw material is effcted by stirring-up rake with gradient and hot air, it can be moved and passed through the dry region and to star valve and then discharge the finished product.
Drum dryer Technical parameters :
| item(m) |
priductive capacity(t/h) |
revolution(r/min) |
motor power(Kw) |
install angle(.) |
Temp.of final |
| Φ1.0×5.0 |
0.5-1.2 |
0.6-6 |
4 |
3-5 |
≤1.5% |
| Φ1.2×6-10 |
1.5-3 |
0.6-6 |
5.5 |
3-5 |
≤1.5% |
| Φ1.5×12-18 |
3-5.5 |
0.6-6 |
15 |
3-5 |
≤1.5% |
| Φ1.8×12-18 |
5-6.5 |
0.6-6 |
18.5 |
3-5 |
≤1.5% |
| Φ2.2×12-22 |
7-12 |
0.6-6 |
22 |
3-5 |
≤1.5% |
| Φ2.4×15-20 |
9-15 |
0.6-6 |
30 |
3-5 |
≤1.5% |
| Φ3.0×25 |
16 |
0.6-6 |
55 |
3-5 |
≤1.5% |
| model |
heat direct and sequence |
heat direct and retrograde |
compound heating |
| type of material |
mineral |
HP |
|
ammonium sulphate |
phosphorus fertilizer |
coal |
| capacity kg/h |
1000 |
-66 |
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 dim. mm |
6.5 |
0.05 |
4.7 |
0.5-0.7 |
0.5 |
5 |
| thickness of material mm |
770 |
800 |
1890 |
1100 |
1500 |
750 |
| capacity of hot air kg/h |
39000 |
5400 |
10750 |
9800 |
6500 |
16000 |
| temp. of air in |
600 |
165 |
500 |
180 |
650 |
570 |
| temp. of material out |
|
42 |
100 |
70 |
80 |
75 |
| heating style |
gas |
steam electric+heating |
heavy oil |
coal fuel furnace |
heavy oil |
heavy oil |
| ratio of feed |
|
6.3 |
7 |
7.5 |
7.8 |
18 |
| rotation speed rpm |
4 |
4 |
3.5 |
3 |
4 |
2 |
| angel . |
0.04 |
0.005 |
0.03 |
0.05 |
0.05 |
0.043 |
| quatity of oar |
12 |
24 |
12 |
22 |
8
16 |
6
12 |
| dim. of drier m |
2.0 |
1.5 |
2 |
2.3 |
2
0.84 |
24
0.95 |
| length of drier m |
20 |
12 |
17 |
15 |
10 |
16 |
| driving power kw |
22 |
7.5 |
15 |
11 |
11 |
15 |
