The rotary dryer is an efficient industrial dryer used for drying bulk solids such as minerals, fertilizers, sand, sawdust, and corrosive materials. It reduces coal and electricity consumption by more than 10%-15% than ordinary dryers, while increasing output by more than 10%.
The rotary dryer is mainly used in mineral processing, cement, clay, agriculture, construction, metallurgy, chemistry and other industries to remove moisture from materials. Its fuel is anthracite, combustible gas, and biomass fuel. The drying temperature reaches 700℃–800℃. The humidity after drying can reach within 0.5%–1%.
Get the Latest PriceHigh-moisture granules and powders below 20 mm, such as cement raw materials, chemical fertilizers, sand (river sand and artificial sand), metal ore powder (iron ore powder, copper ore powder, etc.), non-metallic ore powder (talcum powder, calcium carbonate) powder, quartz powder, etc.), coal slime, slag, etc.
|
Spec./m
(Dia.×Length) |
Shell Cubage
(m³) |
Capacity
(t/h) |
Installation
Obliquity (%) |
Highest Inlet
Air Temperature (℃) |
Main Motor
(kw) |
Weight
(t) |
|
Φ1.2×8.0
|
9.0
|
1.9～2.4
|
3～5
|
700～800
|
7.5
|
9
|
|
Φ1.2×10
|
11.3
|
2.4～3.0
|
3～5
|
700～800
|
7.5
|
11
|
|
Φ1.5×12
|
21.2
|
4.5～5.7
|
3～5
|
700～800
|
15
|
18.5
|
|
Φ1.5×14
|
24.7
|
5.3～6.6
|
3～5
|
700～800
|
15
|
19.7
|
|
Φ1.5×15
|
26.5
|
5.7～7.1
|
3～5
|
700～800
|
15
|
20.5
|
|
Φ1.8×12
|
30.5
|
6.5～8.1
|
3～5
|
700～800
|
18.5
|
21.5
|
|
Φ1.8×14
|
35.6
|
7.6～9.5
|
3～5
|
700～800
|
18.5
|
23
|
|
Φ2.2×12
|
45.6
|
9.7～12.2
|
3～5
|
700～800
|
22
|
33.5
|
|
Φ2.2×14
|
53.2
|
11.4～14.2
|
3～5
|
700～800
|
22
|
36
|
|
Φ2.2×16
|
60.8
|
13.0～16.2
|
3～5
|
700～800
|
22
|
38
|
|
Φ2.4×14
|
63.3
|
13.5～16.9
|
3～5
|
700～800
|
37
|
45
|
|
Φ2.4×18
|
81.4
|
17.4～21.7
|
3～5
|
700～800
|
37
|
49
|
|
Φ2.4×20
|
90.4
|
19.3～24.1
|
3～5
|
700～800
|
45
|
54
|
|
Φ2.4×22
|
99.5
|
21.2～26.5
|
3～5
|
700～800
|
45
|
58
|
|
Φ2.6×24
|
127.4
|
27.2～34.0
|
3～5
|
700～800
|
55
|
73
|
|
Φ3.0×20
|
141.3
|
30.1～37.7
|
3～5
|
700～800
|
75
|
85
|
|
Φ3.0×25
|
176.6
|
37.7～47.1
|
3～5
|
700～800
|
75
|
95
|
|
Φ3.2×25
|
201
|
42.9～53.6
|
3～5
|
700～800
|
90
|
110
|
|
Φ3.6×28
|
285
|
60.8～76.0
|
3～5
|
700～800
|
160
|
135
|
Technical parameters of indirect heat dryer:
| Shell diameter ×shell Length Items |
Inside diameter of outer shell (mm) |
Inside diameter of inner shell (mm) |
Shell Length (m) |
Shell cubage (m³) |
Shell obliquity |
Lifting blade form |
Highest inlet air temperature (℃) |
Dimensions (m) |
| Φ1.5×15m | 1500 | 500 | 15 | 20.27 | 3-5% | Lifting form | 850 | 16.2×2.7×2.7 |
| Φ1.5×17m | 17 | 22.97 | 18.2×2.7×2.7 | |||||
| Φ1.5×19m | 19 | 25.68 | 20.0×2.9×2.9 | |||||
| Φ1.8×21m | 1800 | 650 | 21 | 35.91 | 3-5% | Lifting form | 850 | 22.5×2.7×2.7 |
| Φ1.8×23m | 23 | 39.33 | 24.5×2.9×2.9 | |||||
| Φ1.8×25m | 25 | 42.75 | 26.5×2.9×2.9 | |||||
| Φ2.2×21m | 2200 | 800 | 21 | 58.10 | 3-5% | Lifting form | 850 | ---- |
| Φ2.2×23m | 23 | 63.61 | ||||||
| Φ2.2×25m | 25 | 69.15 |
When the material enters the cylinder and moves along the axial direction of the cylinder, it is subject to heat transfer by the cylinder on the one hand, and on the other hand it is lifted up by the lifting plate and exchanges heat with the hot air during its fall.
When the wet material is heated, the water is evaporated, gradually reducing the moisture content.
The roller body is made of high-grade alloy steel plate to extend the service life by more than 3 times. The feed end is welded with a spiral plate (to facilitate feeding), the middle of the cylinder is welded with lifting plates, and the discharge end is welded with an annular material blocking ring (to prevent the material from being thrown out before reaching humidity).
Multiple combination lifting plates can fully contact the clay with heat, eliminate the adhesion phenomenon on the inner cylinder wall, improve drying efficiency, and ensure that the final moisture content is below 0.5–1%. According to the humidity and grain type, the shape and angle of the lifting plates need to be selected (90°, 135°, 150°, etc.).
Using an automated control system, different heating temperatures and heating times can be configured according to drying requirements, which can effectively control the moisture content of the finished product.
There are generally 200 stainless steel sheets, which vary from model to model. They have good elasticity and heat resistance and can track and adapt to the beating of the cylinder during operation. It has good sealing performance and can reduce heat loss.
We collaborate with clients globally to deliver top-notch mineral processing equipment and tailored solutions, aiming to optimize plant efficiency and reduce operating costs. Additionally, we prioritize ESG (Environmental, Social, and Governance) initiatives, actively advocating for the sustainable advancement of eco-friendly mining and recycling sectors.
Based on high quality and perfect after-sales service, our products have been exported to more than 120 countries and regions. FTM Machinery has become the first choice of more than 2,000,000 customers.
