.jpg)
Features
High degree of mechanization and large production capacity;
Small resistance and low consumption;
Stable operation, low cost and fine eveness;
Scope of application:
Used in chemical, mining and metallurgy industry for drying of large particle and large specific gravity material, for example, ore, blast furnace slag, coal, metal power, phosphatic fertilizer, ammonium sulfate;
For drying of powder and particle material with special requirement, for example, HP foaming agent, vinasse, light calcium carbonate, activated clay, magnetic powder, graphite;
Technical parameters:
|
Model
|
direct heating cocurrent
|
direct heating cocurrent
|
direct heating reverse-flow
|
direct heating reverse-flow
|
composite heating
|
composite heating
|
|
type of material
|
ore
|
HP foaming agent
|
blast furnace slag
|
ammonium sulfate
|
phosphatic fertilizer
|
coal
|
|
handling capacity(kg/h)
|
1000
|
466
|
15000
|
20000
|
12000
|
5000
|
|
initial water content(%)
|
30
|
13
|
6
|
1.5
|
5
|
6.5
|
|
terminal water content(%)
|
15
|
0.3
|
1
|
0.1
|
0.1
|
0.1
|
|
mean grain size(mm)
|
6.5
|
0.05
|
4.7
|
0.5-1.7
|
0.5
|
5
|
|
bulk density(kg/m3)
|
770
|
800
|
1890
|
1100
|
1500
|
750
|
|
hot blast capacity(kg/h)
|
3900
|
5400
|
10750
|
9800
|
6500
|
16000
|
|
gas inlet temperature(℃)
|
600
|
165
|
500
|
180
|
650
|
570
|
|
outlet temperature(℃)
|
|
42
|
100
|
70
|
80
|
75
|
|
heating method
|
coal gas
|
electric heating steam
|
heavy oil
|
coal hot air furnace
|
heavy oil
|
heavy oil
|
|
coefficient of charge
|
|
6.3
|
7
|
7.5
|
7.8
|
18
|
|
rotation speed(rpm)
|
4
|
4
|
3.5
|
3
|
4
|
2
|
|
gradient
|
0.04
|
0.005
|
0.03
|
0.05
|
0.05
|
0.043
|
|
numbers of shovelling plate
|
12
|
24
|
12
|
22
|
outside of inner drum 8
inside of outer drum 16
|
6
12
|
|
diameter of dryer(m)
|
2.0
|
1.5
|
2
|
2.3
|
outer drum 2
inner drum 0.84
|
outer drum 2.4
inner drum 0.95
|
|
length of drier(m)
|
20
|
12
|
17
|
15
|
10
|
16
|
|
drive power (kw)
|
22
|
7.5
|
15
|
11
|
11
|
15
|
HZG direct heating rotary drum dryer 
