Working principle of paddy grains dryer

Date2024-05-09 Back To List

The working principle of the paddy grain dryer is mainly based on the evaporation of water in the paddy grain by hot air. Here's how it works in detail:

First, the paddy grain dryer generates heat energy through a heat source (such as gas, oil, biomass, etc.), and then converts the heat energy into high-temperature hot air through a hot air furnace. The hot air is transported into the drying chamber through hot air ducts. At the same time, the hot air fan will also suck the air and mix it with the hot air to ensure that there is sufficient hot air flow in the drying chamber.

In the drying chamber, the paddy grain is fed through the conveyor belt and evenly distributed in the drying chamber. Hot air is blown into the drying chamber from above or below and comes into contact with the paddy grain. Since the hot air has a higher temperature than the paddy rice, it causes the moisture on the surface of the paddy rice grain to begin to evaporate. As the hot air passes through the layers of paddy rice grain, it pulls the moisture out layer by layer and then out of the drying chamber through the exhaust system.

In order to ensure uniform drying of paddy rice grain, different vents and rotating mechanisms are designed inside the drying chamber. These designs allow hot air to be evenly distributed in the paddy rice grain, ensuring that every corner of the paddy rice grain is fully dried.

During the drying process, the control system will detect and adjust parameters such as temperature, humidity, and air volume in the drying chamber. This is to ensure the effect and quality of drying and to prevent over-drying or under-drying.

When the paddy rice grain reaches the preset dryness level, it can be taken out through the discharge port for subsequent packaging and storage.


Dingli paddy rice grain dryer is suitable for corn, barley, soybeans and other grains. To learn more please contact us!


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