Grain drying tower capable of automatically changing layers of grains

Abstract

The invention relates to the field of grain processing equipment, in particular to a grain drying tower capable of automatically changing layers of grains. The grain drying tower capable of automatically changing the layers of grains comprises a husk screening mechanism, a split-flow drying mechanism, a first layer changing agitator, a first shutter type opening and closing device, a second shell,a cooling mechanism, a second layer changing agitator and a second shutter type opening and closing device, wherein the bottom discharge end of the husk screening mechanism communicates with a firstshell; the split-flow drying mechanism comprises multiple groups of split-flow hot air dryer, the split-flow hot air dryers are sequentially arranged in the first machine shell, and discharging gaps of each set of split-flow hot air dryers are perpendicular to the vertical projection of discharging gaps of the split-flow hot air dryers on the lower layer; the first layer changing agitator is arranged inside the first shell; the first shutter type opening and closing device is arranged at the bottom end of the first shell; the second shell is arranged at the bottom end of the first shell; the cooling mechanism is coaxially arranged inside the second shell; the working end of the second layer changing agitator faces the discharging end of the cooling mechanism; and the second shutter type opening and closing device is arranged at the discharge end of the bottom end of the cooling mechanism, and is electrically connected with a controller. The grain drying tower can effectively and automatically change the grains between a drying area and a cooling area, and is high in drying efficiency.

Description

technical field [0001] The invention relates to the field of grain processing equipment, in particular to a grain drying tower with automatic layer change for grain. Background technique [0002] Grain drying tower is an important grain storage and transportation equipment, which is used to dry wet grain. The grain drying tower is usually composed of a grain storage section, a drying section, a cooling section and a grain discharge section. In the drying section, the hot air in the same direction as the grain flow is used for downstream drying, and then the hot air in the opposite direction to the grain flow is used. For countercurrent drying, in order to fully dry the grain in the grain drying tower with this structure, it is necessary to slow down the flow speed of the grain in the drying chamber, increase the contact time of the grain with the hot air, and the moisture of the grain itself is not enough. For reasons such as uniformity, it is easy to produce burnt grains, ...

AI Technical Summary

Problems solved by technology

The grain drying tower is usually composed of a grain storage section, a drying section, a cooling section and a grain discharge section. In the drying section, the hot air in the same direction as the grain flow is used for downstream drying, and then the hot air in the opposite direction to the grain flow is used. For countercurrent drying, in order to fully dry the grain in the grain drying tower with this structure, it is necessary to slow down the flow speed of the grain in the drying chamber, increase the contact time of the grain with the hot air, and the moisture of the grain itself is not enough. Because of uniformity and other reasons, it is easy to produce burnt grains, which will affect the quality of grain drying

[0003] Chinese patent CN201720696644.8 discloses a grain drying tower, which is easy to accumulate and difficult to change layers when drying grain

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