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Rotary drum dryer is the most common and widely used drying equipment. The heat medium directly contacts with the dried material by convection heat transfer. The rotary drum dryer is mainly used for fully volatilizing the moisture in the materials to be dried by means of heat conduction through the rotating drum, so as to achieve the purpose of drying. It can be divided into parallel flow type and counter flow type, according to the flow direction between hot air and materials
Main Features of Rotary Drum Dryer
1. High mechanization degree, large production capacity and continuous operation
2. Simple structure, smooth running and convenient operation
3. Less fault, low maintenance cost and low power consumption
4. Wide application range and good drying uniformity
5. High drying temperature, high drying intensity and low cost
Rotary Drum Dryer Application
The rotary drum dryer is special designed for drying muddy and high humidity materials, like coal, lignite, wood chips, sawdust, rice husk, herbal medicine, forage grass, chicken manure, minerals, ore powder, bean dregs, fruit residues, etc. It is widely used in agricultural, building materials, chemical industry, and other industries.
The wet material is evenly distributed and dispersed in the rotary dryer after entering the dryer from one end under the turning of the lifting board uniformly distributed in the inner cylinder. The wet material fully contacts with the parallel flow (countercurrent) hot air, thus accelerating the heat transfer. In the drying process, under the action of inclined plate and hot air flow, the material moves to the star discharge valve of the other section of the dryer to discharge the finished product
| 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, focuses on the manufacturing of dewatering and drying equipment for biomass waste, alfalfa, brewery waste, coal and kinds of minerals, etc.
* More than 15 years of experience in R&D and manufacturing of drying equipment
* 5000 square meters of standardized industrial workshop
* Manufacturing capacity of 300 sets of dryers and auxiliary machines
* Total online staff more than 200 people
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.
With more than 15 years of experience, the company has nearly 60 patents related to the research and manufacture of drying equipment, and has obtained the certification of Integration of Informationization and Industrialization, CE, and Quality Management System Certifications (ISO9001 certification, ISO14001 certification, ISO45001 certification).
