Brief introduction of rotary drum dryer/drying machine:
The rotary dryer is a type of industrial dryer used for reduce or minimize the liquid moisture content of the material it is handling by bringing it into direct contact with a heated gas.
The working principle of rotary drum dryer/drying machine:
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.
Applications of rotary drum dryer/drying machine:
Rotary dryer is suitable to dry metallic and nonmetallic mineral, clay in cement industrial and coal slime in coal mine,etc. Rotary dryer can be widely used to dry various materials, and it is simple to be operated.
Rotary Dryers have many applications but are 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, etc.
Technical Parameters:
| Model | Gradient(%) | Rotating speed(r/min) | Inlet temperature(degrees centigrade) | Motor power(kw) | Capacity(t/h) | Weight(t) |
| 600x6000 | 3-5 | 3-8 | < =700 | 3 | 0.5-1.5 | 2.9 |
| 800x8000 | 3-5 | 3-8 | < =700 | 4 | 0.8-2.0 | 3.5 |
| 800x10000 | 3-5 | 3-8 | < =700 | 4 | 0.8-2.5 | 4.5 |
| 1000x10000 | 3-5 | 3-8 | < =700 | 5.5 | 1.0-3.5 | 5.6 |
| 1200x12000 | 3-5 | 3-8 | < =700 | 11 | 2-6 | 14.8 |
| 1500x12000 | 3-5 | 2-6 | < =800 | 18.5 | 3.5-9 | 17.8 |
| 1800x18000 | 3-5 | 2-6 | < =800 | 22 | 5-12 | 31 |
| 2000x18000 | 3-5 | 1.5-6 | < =800 | 30 | 6-15 | 43 |
| 2200x18000 | 3-5 | 1.5-6 | < =800 | 37 | 10-18 | 52 |
| 2400x20000 | 3-5 | 1.5-5 | < =800 | 45 | 18-30 | 60 |
| 2800x20000 | 3-5 | 1.5-5 | < =800 | 55 | 25-35 | 72 |
| 3000x20000 | 3-5 | 1.5-5 | < =800 | 55 | 32-40 | 91 |
| 3000x25000 | 3-5 | 1.5-5 | < =800 | 75 | 40-55 | 104.9 |
Zhengzhou Ruiyong machinery Co., Ltd. is a company that integrates the design, the research, the manufacture and the marketing and the after-sale service as a whole. It was founded in 1990. Its predecessor is Ruichang Company. Zhengzhou Ruiyong machinery is located in the national transport hub city of Henan Zhengzhou. The geographical position is superior, its factory is 100 meters far from the Cross between Zhongyuan west Road and Hangzhou Road, 2 km north to the Lianhuo high-speed entrance, 15 km south to the airport, 13 km east to the railway station and in the city you can take the bus NO. 11 or 12 to arrive.
The company is one of the biggest suppliers of coal equipment production line in China. Our company is devoted to the development and the research of the coal equipment for many years. Recently, our company has obtained the breakthrough development in the field of new energy and renewable energy equipment manufacturing. According to the national demand for new energy equipment, we have developed a new generation of energy saving products, they specialize in the production of coal rods machine, stick machine, carbon black machine, carbon powder machine, type coal production line equipment, mixer, avoid drying equipment type coal and so on, they are widely used in all fields. At the same time, we have so many departments to serve for the company; They are market research, technology innovation, product design, equipment manufacture, after-sale service, environmental science, network construction and other departments. Our productions have passed the ISO9001, 2000 Quality Certification and 3A Certification. What's more, the company has been awarded the advanced enterprise more than once.
The purpose of the enterprise
Supply the creative, excellent products and programs and service; Comprehensively assist to customers and enterprises to achieve the way to the success
