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Model
|
Direct heating clockwise
|
Direct heating clockwise
|
Direct heating counter-clockwise
|
Direct heating counter-clockwise
|
Compund heating
|
Compund heating
|
Kinds of raw material
kg/h
|
Ore
|
HP vesicant
|
Slag of blast furnace
|
Ammonium
sulphate |
Phosphorus fertilizer
|
Coal
|
Amount to be treated
|
1000
|
466
|
15000
|
20000
|
5000
|
1000
|
Initial moisture %
|
30
|
13
|
6
|
1.5
|
6.5
|
30
|
Final moisture %
|
15
|
0.3
|
1
|
0.1
|
0.1
|
15
|
Average granule diameter mm
|
6.5
|
0.05
|
4.7
|
0.5-1.7
|
5
|
6.5
|
Bulk density of raw material kg/m 3
|
770
|
800
|
1890
|
1100
|
750
|
770
|
Amount of hot air kg/h
|
39000
|
5400
|
10750
|
9800
|
16000
|
39000
|
Temperature of air inlet
a??
|
600
|
165
|
500
|
180
|
570
|
600
|
Temperature of air outlet
a??
|
150
|
42
|
100
|
70
|
75
|
150
|
Way of heating
|
Coal
|
Heavy Oil
|
Coal fuel hot air oven
|
Steam ecectric heating
|
Heavy oil
|
Heavy oil
|
Filling coefficient %
|
|
6.3
|
7
|
7.5
|
18
|
|
Revolution speed r.p.m
|
4
|
4
|
3.5
|
3
|
2
|
4
|
Gradient m/m
|
0.04
|
0.005
|
0.03
|
0.05
|
0.043
|
0.04
|
Quantity of stirring-up rake
|
12
|
24
|
12
|
12
|
Outer of inner cylinder8
Inner of outer cylinder16 |
6 12
|
Diameter of Dryer m
|
2.0
|
1.5
|
2
|
2.0
|
Outer cylinder2
Outer of inner0.84 |
Outer cylinder2.4
Outer of inner0.94 |
Length of dryer m
|
20
|
12
|
17
|
10
|
16
|
2.0
|
Driving power kw
|
22
|
7.5
|
15
|
11
|
15
|
22
|
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