Drying is a key step after rice harvest. How to dry rice with a rice dryer? Taking 20 tons of rice as an example, this article will explain why rice needs drying, the rice drying process, the key factors of rice drying, and the advantages of the Shuliy tower rice dryer. The rice dryer mentioned here is also called a tower dryer.
Why dry Rice?
Freshly harvested rice usually has about 20% moisture. If not dried in time, it may cause:
- Mold, spoilage, and yellow rice grains;
- Insect damage and shorter storage time;
- Low milling yield and more broken rice;
- Higher storage and transport costs.
Using a rice drying machine can reduce and stabilize moisture at about 12%. This ensures quality and makes long-term storage and transport easier. For large-scale grain processing, a tower dryer is the ideal choice, offering continuous, large-volume, and uniform drying.
Rice Drying Process
The tower rice dryer uses hot air in counterflow or parallel flow with the rice. Through multi-layer air ducts, the rice falls slowly and dries evenly.
Technical Parameters (model 5hxg-32 as an example)
- capacity: 20 tons rice/hour (20,000 kg/h)
- final moisture: about 12%
- size: length 4770 mm × width 5090 mm × height 11430 mm
- heat source: biomass, coal, natural gas, electricity, steam
- total power: about 10.65 kW (including blower and exhaust fan)
- control system: Siemens PLC, full automatic intelligent control
20-ton Rice Drying Plan
- Input material: 20,000 kg/h rice (initial moisture 20%)
- dry matter: 16,000 kg/h
- finished rice: 18,182 kg/h (final moisture 12%)
- water to evaporate: 1,818 kg/h
- required heat: about 1,129,000 kcal/h
- drying time: about 65 minutes
- air flow: circulation fan 15,000–22,000 m³/h; exhaust fan 25,000–35,000 m³/h
This plan ensures fast and uniform rice drying, with a low broken rate and high product quality.
Three Key Factors of Rice Drying
Temperature Control
- initial stage: 50–55°c, to avoid rice cracking
- middle and final stage: 55–60°c, to ensure full moisture removal
Airflow Distribution
uniform air supply, to avoid local overheating and uneven drying
Moisture Monitoring
real-time monitoring and smart adjustment, to keep the final rice moisture stable
Advantages of Shuliy Rice Dryer
- Efficient: single machine capacity 15–32 tons/hour, broken rice rate less than 1%
- Smart control: Siemens PLC automatic system, precise adjustment of temperature and time
- Multiple heat sources: biomass, coal, natural gas, electricity, or steam, according to local energy supply
- Wide application: suitable not only for rice, but also for corn, wheat, soybean, rapeseed, and other grains
Work with Shuliy
By using the tower rice drying machine, you can dry rice quickly, safely, and with energy saving under large-scale production of 20 tons per hour. The 4th-generation shuliy tower dryer, with high efficiency, smart control, and wide application, has become a leading rice drying solution worldwide, bringing great benefits to grain storage and processing.
