Specifications
coal rotary dryer
1.high dry strength&short dry time
2.energy saving
3.thermal Efficient can be 60%
4.smooth&reliable
1.high dry strength&short dry time
2.energy saving
3.thermal Efficient can be 60%
4.smooth&reliable
Coal Rotary dryer
1.Introduction of Coal rotary dryer
Rotary drier is widely used for drying materials in the industries of cemet, mine, contruction, chemical, food, compoud fertilizer, etc. Feeding and discharging unit is installed with thermocouple to control drier temperature. The temperature change of drier's feeding end can be indicated by the thermometer to control the inner drier temperature ( generally 250-350°C)
2.Structure of Coal rotary dryer
Rotary drier machine is mainly composed of shell, back and forth supporting wheel, feeding and discharging unit and gear cap. The accessories which are not in the the scope of this machine include firebox, feeding and discharging equipment, dust catcher, etc.
3. Working principle of Coal rotary dryer
Rotary drier adopts direct flow type of heating with heat soure from firing unit. The material to be dried is pushed back immindiately by spiral board when enters the shell from feeding tank and feeding chute. Because the drier is installed in slope, material flows to the back end under gravity and rotation force, meanwhile, it is lifted by board repeatedly and thrown down accordingly, which make the material form even curtain, and exchange heat sufficiently with inner the heat flow. In the end, water in the material is dried by repeatedly scattering.
Rotary drier adopts direct flow type of heating with heat soure from firing unit. The material to be dried is pushed back immindiately by spiral board when enters the shell from feeding tank and feeding chute. Because the drier is installed in slope, material flows to the back end under gravity and rotation force, meanwhile, it is lifted by board repeatedly and thrown down accordingly, which make the material form even curtain, and exchange heat sufficiently with inner the heat flow. In the end, water in the material is dried by repeatedly scattering.
4.Technical paraneters of Coal rotary dryer
|
Model
|
The Diameter
(mm)
|
The Length
(m)
|
Slope(°)
|
Speed
(r/min)
|
Power
(kw)
|
Volume
(m3)
|
|
0.6×8-12
|
600
|
8-12
|
3-5
|
8
|
4
|
2.26
|
|
0.8×10-10
|
800
|
10-12
|
3-5
|
7.2
|
4
|
5.02
|
|
1.0×10-12
|
1000
|
10-12
|
3-5
|
6.73
|
5.5
|
7.85
|
|
1.2×12-18
|
1200
|
12-18
|
3-5
|
5.8
|
11-15
|
13.31
|
|
1.5×12-18
|
1500
|
12-18
|
3-5
|
4.8
|
15-22
|
21.2
|
|
1.8×12-18
|
1800
|
12-18
|
3-5
|
3.2
|
18-30
|
48.22
|
|
2.2×12-22
|
2200
|
12-22
|
3-5
|
3
|
22-30
|
70.43
|
|
2.8×15-24
|
2800
|
15-24
|
3-5
|
2.59
|
30-55
|
147.8
|