 
●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.
●It is suitable for drying raw materials that have large size and heavy specific gravity.For example:ore,slag of blast furnace,coal,metallic powder,phosphorus fertilizer,ammonium sulphate and so on.
●Dry powder,granule rae materiels which have special requirments to drying.
For example:HP vesicant,less,light calcium carbonate,active white earth,magnetic powder,graphite,medical slag and so on.
|
item (m) |
productive capacity（t/h） |
revolution （r/min） |
motor power （kw） |
install angle （°） |
Temp. of final |
|
ø1.0×5.0 |
0.5-1.2 |
0.6-6 |
4 |
3-5 |
≤1.5％ |
|
ø1.2×6－10 |
1.5-3 |
0.6-6 |
5.5 |
3-5 |
≤1.5％ |
|
ø1.5×12－18 |
3-5.5 |
0.6-6 |
15 |
3-5 |
≤1.5％ |
|
ø1.8×12－18 |
5-6.5 |
0.6-6 |
18.5 |
3-5 |
≤1.5％ |
|
ø2.2×12－22 |
7-12 |
0.6-6 |
22 |
3-5 |
≤1.5％ |
|
ø2.4×15－20 |
9-15 |
0.6-6 |
30 |
3-5 |
≤1.5％ |
|
ø3.0×25 |
16 |
0.6-6 |
55 |
3-5 |
≤1.5％ |
|
form |
heat direct and sequence |
heat direct and retrograde |
compound heating |
|
kinds of raw materials |
矿石 |
HP发泡剂 |
高炉矿渣 |
ammonium sulphate |
phosphorus fertilizer |
coal |
|
disposal amount kg/h |
1000 |
466 |
15000 |
20000 |
12000 |
5000 |
|
primary content of water % |
30 |
13 |
6 |
1.5 |
5 |
6.5 |
|
final content of water % |
15 |
0.3 |
1 |
0.1 |
0.1 |
0.1 |
|
average diameter mm |
6.5 |
0.05 |
4.7 |
0.5-0.7 |
0.5 |
5 |
|
bulk density of raw material mm |
770 |
800 |
1890 |
1100 |
1500 |
750 |
|
amount of hot air kg/h |
39000 |
5400 |
10750 |
9800 |
6500 |
16000 |
|
temp of air inlet ℃ |
600 |
165 |
500 |
180 |
650 |
570 |
|
temp of material at outlet ℃ |
|
42 |
100 |
70 |
80 |
75 |
|
heating way |
gas |
steam electric+heating |
heavy oil |
coal fuel furnace |
heavy oil |
heavy oil |
|
ratio of feed |
|
6.3 |
7 |
7.5 |
7.8 |
18 |
|
speed rpm |
4 |
4 |
3.5 |
3 |
4 |
2 |
|
gradient ° |
0.04 |
0.005 |
0.03 |
0.05 |
0.05 |
0.043 |
|
diameter of drier |
12 |
24 |
12 |
22 |
内筒外面8外筒内面16 |
内筒外面6外筒内面12 |
|
amount of blade m |
2.0 |
1.5 |
2 |
2.3 |
外筒2内筒0.84 |
外筒24内筒0.95 |
|
length of drier m |
20 |
12 |
17 |
15 |
10 |
16 |
|
driving power driving kw |
22 |
7.5 |
15 |
11 |
11 |
15 | |
