Dingli Grain Dryer has strong adaptability and can dry a variety of grains. It has good drying effects on corn, rice, soybeans, wheat, sorghum, rapeseed, etc.; it is mechanized for continuous operation, with stable performance and easy operation. Save civil construction investment.

Working principle of Dingli grain dryer

After the grain crops are cleaned in the grain drying tower, they are sent to the tower by the elevator. The drying process is completed through the grain storage section, preheating section, slow-soaking section, drying section, slow-soaking section and cooling section to achieve the required moisture. It is discharged from the machine through the discharging section and then sent into the barn by the conveyor. After the dry air is sent into the hot air stove by a hot air blower and heated to the required temperature (the temperature can be adjusted from 40°C to 140°C according to the drying materials), it enters the grain drying tower and then passes through the angular ventilation box to penetrate the grain in multiple directions. The moisture and heat exchange between the layer and the wet food turns into moisture and is discharged into the atmosphere. This machine uses hot air as the heat medium to dry grain. Its interior is mainly composed of angular ventilation boxes arranged in layers. The outside of the angular box is filled with grain, and the grain flows from top to bottom. Hot air enters through the intake angular box and passes through the grain layer in the up and down direction. The exhaust gas is discharged through the exhaust angular box. Hot air and grain flow both flow in the same direction and in opposite directions, which is called mixed flow. When the hot air passes through the grain layer, it transfers heat and moisture with the grain: the hot air transfers heat to the grain grains, causing their temperature to rise. The grain grains are heated and the water evaporates into the air and is discharged as waste gas. The dried hot grain flows downward to the slow-cooling section. After passing through the slow-cooling section, the temperature and moisture of the inner and outer layers of the grains tend to be balanced to achieve uniform precipitation. After slow cooling, the grain enters the cooling section. After cooling, the grain is cooled to the storage temperature and then discharged from the grain discharge section.