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Rotary drum dryer is a kind of direct heating method. This direct heating method is of high efficiency and low lost.
A rotary dryer is suitable to dry metallic and nonmetallic mineral, clay in cement industrial and coal slime in coal mine, etc. Rotary dryers can be widely used to dry various materials,
most commonly seen in the mineral industry for drying sands, limestone, stones and soil, ores, fertilizers, wood chips, coal, iron sulphate, filter cakes, sewage sludge, other sludge, etc.
The technical solutions are as varied as the materials. Depending on the raw material, application and water content involved, we design and manufacture the right rotary dryer system for customers.
In addition to a precisely controlled drying process, another important factor for drying biomass is a facility's cost-effectiveness - making use of free waste heat.
Dongding biomass drying systems are designed to be robust and easy to control.
Why Choose Our Rotary Drum Dryer?
1. Customized Solution. According to the properties of different coal slurry to change the operating parameters.
2. Special internal structure, eliminating the adhesion phenomenon of the inner wall.
3. Multiple Heating Source. Customers can choose the heating source according their situation, we can design the customized solutions.
4. Designed Inner Structure For Sawdust Material. High drying efficiency to 90-95%.
5. The system is equipped with PLC system and video monitoring system, with a high degree of automation and simple operation.
6. HighThe system has a unique sealing structure, no thermal energy leakage.
7. Low investment, low operating cost, and short investment recovery time.
8. Provide Accessory Parts. Accessory parts quality assured.
Firstly, wet material is crushed by the crushing machine(if needed), transported to the screw conveyor by the belt conveyor, then go into the rotary drum.
After drying, most of the dry material will be discharged through the belt conveyor, the left material will go into the cyclone dust collector,
where the dust will be collected, with the function of induced draft fan, the left material will discharged through the conveyor.
| Model | Capacity(T/h) | Length (m) | Diameter (m) | Temperature(ºC) | Motor Power(kw) |
| DD1208 | 1.9-2.4 | 8 | 1.2 | 600-750 | 7.5 |
| DD1210 | 2.4-3.0 | 10 | 1.2 | 600-750 | 7.5 |
| DD1612 | 4.5-5.7 | 12 | 1.6 | 600-750 | 15 |
| DD1812 | 6.5-8.1 | 12 | 1.8 | 600-750 | 18.5 |
| DD2212 | 9.7-12.2 | 12 | 2.2 | 600-750 | 22 |
| DD2418 | 17.4-21.7 | 18 | 2.4 | 600-750 | 37 |
| DD2420 | 19.3-24.1 | 20 | 2.4 | 600-750 | 45 |
| DD2624 | 27.2-34.0 | 24 | 2.6 | 600-750 | 55 |
| DD3020 | 30.1-37.7 | 20 | 3.0 | 600-750 | 75 |
| DD3225 | 42.9-53.6 | 25 | 3.2 | 600-750 | 90 |
| DD3628 | 60.8-76.0 | 28 | 3.6 | 600-750 | 160 |
Zhengzhou Dongding Machinery Co., Ltd is a high-tech enterprise integrating R&D design, production installation, production management, sales, after-sales service and technical consultation.
We have core technology system, which integrates the thermal combustion, dehydration, drying, molding, separation and dust removal. Scientific equipment selection and technical process optimization are adopted according to different material characteristics. Currently our equipment has been successfully applied in the coal, feed, biomass fuel, organic fertilizer processing industries. Especially the coal dryers like lignite coal dryer, coal ash dryer, raw coal rotary dryer, coal slime dryer, etc. are well received by the customers at home and abroad.
At present, our products have been recognized by customers in China and all over the world, and successfully exported to Indonesia, South Africa, Vietnam, Thailand, Myanmar, India, Egypt and other countries and regions.
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