High efficient Rotary drum dryer for drying lignite coal powder
Introduction of rotary dryer:
The rotary dryer is a type of industrial dryer employed to reduce or minimize the liquid moisture content of the material.
The dryer is made up of a large, rotating cylindrical tube, usually supported by concrete columns or steel beams. The dryer slopes slightly so that the discharge end is lower than the material feed end in order to convey the material through the dryer under gravity. Material to be dried enters the dryer, and as the dryer rotates, the material is lifted up by a series of internal fins lining the inner wall of the dryer. When the material gets high enough to roll back off the fins, it falls back down to the bottom of the dryer, passing through the hot gas stream as it falls. This gas stream can either be moving toward the discharge end from the feed end (known as co-current flow), or toward the feed end from the discharge end (known as counter-current flow). The gas stream can be made up of a mixture of air and combustion gases from a burner, in which case the dryer is called a direct heated dryer. Alternatively, the gas stream may consist of air or another (sometimes inert) gas that is preheated. When the gas stream is preheated by some means where burner combustion gases do not enter the dryer, the dryer known as an indirect-heated type. Often, indirect heated dryers are used when product contamination is a concern. In some cases, a combination of direct-indirect heated rotary dryers are also available to improve the overall efficiency.
Working principle:
The sleeve column structure of the rotary drying machine or rotary dryer shortens the dryer length in multiple times. As the heat delivery area is greatly reduced, so is the heat consumption. However, the multiplication heat exchange area increases the heat performance. For those untouchable materials, the multi-drum rotary dryer provides inner smoke tube and annular smoke tube relevantly in the inner drum and external drum. These smoke tubes connect each other through radial tubes to increase high efficiency. It's obvious that hot materials and cold medium, the rotary dryer is also known as sleeve type rotary cooler and kiln dryer.
Features:
1. The rotary drying machine or rotary dryer is with high mechanization, strong production capability and continuous operation
2. Excellent and simple structure, steady operating process under resistance of the drum, easy operation
3. Little malfunction, low maintenance cost and power consumption
4. Wide application range and good drying effect.
Technical parameters:
| Model (mm) |
Inclination (%) |
Rotate speed (r/min) |
Air inlet temperature (°C) |
Power (kw) |
Production capacity(t/h) |
Weight (t) |
| Φ600x6000 |
3-5 |
3-8 |
≤700 |
3 |
0.5-1.5 |
2.9 |
| Φ800x8000 |
3-5 |
3-8 |
≤700 |
4 |
0.8-2.0 |
3.5 |
| Φ800x10000 |
3-5 |
3-8 |
≤700 |
4 |
0.8-2.5 |
4.5 |
| Φ1000x10000 |
3-5 |
3-8 |
≤700 |
5.5 |
1.0-3.5 |
5.6 |
| Φ1200x10000 |
3-5 |
3-8 |
≤700 |
7.5 |
1.8-5 |
14.5 |
| Φ1200x12000 |
3-5 |
3-8 |
≤700 |
11 |
2-6 |
14.8 |
| Φ1500x12000 |
3-5 |
2-6 |
≤800 |
15 |
3.5-9 |
17.8 |
| Φ1800x12000 |
3-5 |
2-6 |
≤800 |
18 |
5-12 |
25 |
| Φ2200x12000 |
3-5 |
1.5-6 |
≤800 |
18.5 |
6-15 |
33 |
| Φ2200x18000 |
3-5 |
1.5-6 |
≤800 |
22 |
10-18 |
53.8 |
| Φ2200x20000 |
3-5 |
1.5-6 |
≤800 |
30 |
12-20 |
56 |
| Φ2400x20000 |
3-5 |
1.5-5 |
≤800 |
37 |
18-30 |
60 |
| Φ3000x20000 |
3-5 |
1.5-5 |
≤800 |
55 |
25-35 |
78 |
| Φ3000x25000 |
3-5 |
1.5-5 |
≤800 |
75 |
32-40 |
104.9 |
Service Pre-sale support
We can enable them to get rich and generous returns on their investments:
1 Select equipment model;
2 Design and manufacture products according to clients' special requirement;
3 Train technical personnel for clients.
Services during the sale
We respect clients and always devote ourselves to improving the total value of clients:
1 Pre-check and accept products ahead of delivery;
2 help clients to draft solving plans.
After-sales service support
After we signed the purchase contract and have a certain reputation guarantee, we will contact the professional group that responsible for ship bookings, commodity inspection, commercial invoices, packing list, insurance policy and so on, in order to provide you the perfect goods trading services, until the product you purchased properly to your hands.
If any question or needs pls call me freely at mobile : 0086-13353909201
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