3kw ISO Vertical Rotary Drying Machine Rice Truck Mounted 380V

Rice is a particularly popular crop all over the world and it offers the opportunity to grow different varieties of grains. It is a basic element in the nutrition of almost half of the world's population (Ricestat, 2018): around 500 million tons of processed rice are produced globally and about 90% of this production comes from Asian countries.

In fact, the moisture content of paddy rice after harvest is generally higher than 20%, while for its correct shelf life it is necessary to reduce it to 12-14%. After harvesting, the paddy rice should be dried as soon as possible: the ideal would be to proceed with the treatment within 24 hours, in order to avoid the onset of mold, but also the germination of the product, with consequent losses. In fact, the drying of wet paddy rice carried out in a non-optimal way is responsible for the loss of quality of the cereal and the increase in economic losses.

In this article, Mecmar explains how a correct rice drying process allows to reduce post-harvest losses by minimizing the microbial activity and respiration of the cereal.

Rice: characteristics and types

Rice is a hygroscopic material: it can absorb water molecules present in the environment. Therefore, if it is exposed to air with higher humidity than that of rice grains, they will absorb the water present in the air by increasing their internal moisture; otherwise, if the wet rice is exposed to an air with low humidity compared to that of the rice grains, these will release water into the air.

For proper storage of the rice, it is essential to provide for a drying phase and, if possible, also a cleaning phase of the grains, to allow a uniform drying, free from moisture stains. To obtain optimal drying, it is necessary to accurately determine the temperature of the humidity of the air that will surround the grains, to prevent the humidity of the grain from increasing with a consequent deterioration in the quality of the seed.

Application:

The wheat, maize, paddy grain dryer is suitable for efficient drying all cereals, grains, pulses, beans, and seeds of all crops such as coffee bean, wheat, paddy, barley, maize, millets, sunflower seed, soybean, oilseeds, rice etc.

Specification: