Zhengzhou Dongding Machinery Co., Ltd.

Coal Slag Rotary Dryer

Capacity: 300-2500 T/D
Final Moisture: ≦12%
Total Power: 109-1200 Kw
Floor Area: 175-1600 m2

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Coal Slag Rotary Dryer Introduction
Coal slag dryer is mainly used for drying  particulate materials of a certain humidity and granularity, such as coal, sand, gypsum, etc.  According to the final moisture requirements, the moisture content after drying can reach 1%-0.5% or below.
Coal Slag Rotary Dryer Working Principle
The wet material is fed into the inner layer of the three-layer drum by the feeding device to achieve downstream drying. The material is continuously picked up and scattered under the copying board in the inner layer and spirally conveyed to achieve heat exchange. The material moves to the other end of the inner layer and enters. In the middle layer, counter-current drying is performed, and the materials are continuously raised in the middle layer. This is a two-step progress. The material in the middle layer not only fully absorbs the heat dissipated by the inner drum, but also absorbs the heat from the middle drum while prolonging its drying time, the material in this state will achieve the best dry state. The material goes to the other end of the middle layer and falls into the outer layer. The material in the outer drum is in a rectangular multi-loop manner. The material that achieves the drying effect quickly moves out of the drum under the action of hot air. The wet material that does not reach the drying effect cannot be fast due to its own weight. The material is fully dried in this rectangular copying board to achieve a drying effect and the drying process is completed. Dust-laden dust discharged through the dust collection equipment to collect dust.

Coal Slag Rotary Dryer Characteristic
a. The internal structure of the drying equipment design has a unique delay-out device, extending the stay time of the material in the drum, improving the exchange time between material and hot air, which obtains better drying effect.
b. The main drive of the drying drum adopts frequency conversion control to reduce the power consumption, and the drum speed can be adjusted and controlled precisely to meet the non-uniformity of moisture in the dry feed.
c. The interior is equipped with a cleaning device to prevent the adhesion caused by the material over-adhesion phenomenon.
d. The system has a power outage protection system to prevent fire, explosion and other security hazards caused by power failure.
e. Drying system for the discharge device uses the company's latest patented technology, which has been in a number of projects and other applications.
f. PLC control system to realize automatic monitoring of the whole system, with centralized and in-situ conversion function.
g. High-distribution system is equipped with monitoring system, the workshop without dead-ends, the operator in the control room according to the material and after drying the product material situation, at any time to regulate the drying system operating parameters.
h. The system has simple operation and low maintenance rate.

Specifications

Coal Slag Rotary Dryer Technical Parameter

Specification

Capacity
(T/D)

Initial Moisture
(%)

Final Moisture
(%)

Total Power
(kw)

Floor Area
(m2)

DDMG1918

300±10

25±5

≤12

109

7m*25m

DDMG2218

500±30

25±5

≤12

128

8m*30m

DDMG2520

700±30

25±5

≤12

240

8m*30m

DDMG2822

1000±30

25±5

≤12

400

8m*40m

DDMG3024

1200±30

25±5

≤12

480

12m*50m

DDMG3428

1500±30

25±5

≤12

600

12m*60m

DDMG3830

1800±30

25±5

≤12

800

16m*70m

DDMG4032

2000±30

25±5

≤12

1000

18m*70m

DDMG4238

2500±30

25±5

≤12

1200

20m*80m


We also provided customized models.

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