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:
| Model | HYT-500 | HYT-1000 | HYT-3000 |
| Capacity | 500kg/time | 1000kg/time | 3000kg/time |
| Hopper Capacity | 500L | 1000L | 4800L |
| Speed of mainshaft | 330 (r/min) | 330 (r/min) | 330 (r/min) |
| Motor power | 3kw | 3 kw | 4kw |
| Heating power | 24kw | 36 kw | 48kw |
| Voltage | 380V/50HZ | 380V/50HZ | 380V/50HZ |
| Machine size | 1000*2700mm | 1300*2880mm | 1800*3500mm |
