A:
All Dongding dryers come with a 12-month warranty covering parts and workmanship from the date of commissioning. Lifetime technical support and spare parts supply are provided.
Introduction of Single Pass Rotary Dryer
Also known as a single-cylinder dryer or rotary drier, the single-pass rotary dryer is widely used in the food, feed, fertilizer, chemical, pharmaceutical and mining industries. It mainly consists of a rotating drum, internal lifting plates and a transmission unit. As the inclined drum rotates, the lifting plates continuously lift and shower the material, allowing it to fall through and make full, even contact with the hot airflow inside the drum.
It is especially suitable for high-moisture, high-viscosity materials such as lignite, coal slime, sludge, mineral ore, slag, fruit pomace and poultry manure, and can be fitted with different heat sources to meet specific requirements. The dryer features a rational structure, stable and simple operation, and convenient maintenance.
Advantages of Single Pass Rotary Dryer
01
Energy Saving
A new transmission device saves over 20% more coal than conventional dryers, cutting operating costs.
02
Precise Control
Drying time and temperature are precisely controlled.
03
No Dust Pollution
A reasonably designed air outlet prevents dust pollution.
04
Multiple Heat Sources
Multiple heat-source choices with tailored solutions for each customer.
05
Large Capacity, Low Cost
Strong overload resistance with large processing capacity, less fuel consumption and low drying cost.
06
High Thermal Efficiency
Concurrent-flow drying improves moisture evaporation and thermal efficiency; a new feeding and discharging device eliminates blockage and reduces the dust-removal load.
Working Principle of Single Pass Rotary Dryer
Single pass rotary dryer mainly consists of heat source, feeding machine, rotary drum, discharging machine, induced draft fan, unloading feeder, cyclone dust remover, odor removal equipment and power distribution cabinet form.
Wet material enters the drum through the feeder. As the drum slowly rotates, the material is continuously lifted and thrown down by gravity and the lifting plates, making full contact with the hot air.
Hot air, generated by a combustion furnace or other heat source, is transported into the drum through pipes. It exchanges heat with the material, causing the water in the raw material to evaporate, thus achieving the purpose of drying.
Specifications of Single Pass Rotary Dryer
| Model | Capacity (TPH) | Evaporation Capacity (TPH) | Feed Moisture (%) | Final Moisture (%) | Drying Temperature (℃) | Installed Power (kW) |
| DDSG1212 | 2.8 | 0.45 | ≤83 | ≤12 | 270±30 | 30.7 |
| DDSG1409 | 4.0 | 0.6 | 37.7 | |||
| DDSG1415 | 5.4 | 0.85 | 40.2 | |||
| DDSG1615 | 7.8 | 1.2 | 48.7 | |||
| DDSG1918 | 13.5 | 2.1 | 58.3 | |||
| DDSG2618 | 17 | 2.7 | 63.7 | |||
| DDSG2620 | 21 | 3.3 | 84.5 |
Notice:
1. Any change of technical data shall not be advised additionally.
2. Parameters above are for reference; final configuration is tailored to your material and capacity.
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- 600+
- Projects Worldwide
With drying projects running across the globe, Dongding has earned long-term trust through reliable quality and responsive after-sales service.
Frequently Asked Questions
Common questions about our rotary dryers — pricing, customization, installation and after-sales.
A:
Please share your raw material, initial and target moisture content, required capacity (t/h), available fuel or heat source, and your target market. With these details our engineers can recommend the right model and send an accurate quotation.
A:
As a manufacturer, we accept orders starting from a single machine. We can also deliver complete drying production lines with auxiliary equipment such as hot air furnaces and dust collectors. Contact us for tailored pricing.
A:
Standard models are usually delivered within 25-40 days after the deposit. Customized machines or larger production lines may take longer depending on the configuration. The exact schedule is confirmed in your contract.
A:
Yes. Every dryer is engineered around your material, capacity, moisture and site layout. Heat source, material of construction, dust collection and automation level can all be customized to your process.
A:
Yes. We provide installation guidance, commissioning, operator training and lifetime after-sales support. Our engineers can also travel to your site, and all equipment comes with a warranty.
