A sorting and drying mechanism for grain dryer

Abstract

The present invention relates to the technical field of grain dryers, and more specifically relates to a material distribution and drying mechanism for grain dryers, including a feed gate channel, a feeder and a drying tank, and the feeder includes a No. The motor, the central shaft and the dispersing disc, the drying trough includes sub-troughs, hot air blowers and slow-down units, with a ventilation net between the sub-troughs, the slow-down unit includes No. 2 motor, driving roller and driven roller, and the driven roller passes through the conveyor belt Connected with the driving roller, there are auxiliary rollers evenly distributed between the driving roller and the driven roller. The driving roller, auxiliary roller and driven roller are all fixedly connected with slow-down shafts, and the slow-down shafts are alternately distributed with positive arc grooves and inverted arcs Groove; the present invention thins the valley layer through each sub-groove, increases the ventilation area, prolongs the air path, makes the grain dry evenly, reduces the resistance of the hot air passing through the valley layer, cleans the grain up and down twice, and increases the cleaning of the dried grain Degree, by increasing the resistance and residence time, improve the efficiency of impurity removal and drying.

Description

technical field [0001] The invention relates to the technical field of grain dryers, in particular to a material distribution and drying mechanism for grain dryers. Background technique [0002] The existing grain dryer adopts the method of circulating drying to dry. The process flow is: after the grain enters from the hopper, the moisture is detected in the elevator. The upper auger lifts the grain to the feed sluice, and then falls from the feed sluice into the drying bin to be dried by hot air. The outlet of the drying bin is connected to the elevator through the grain discharge wheel and the lower auger, so that the grain is circulated and dried, monitored by a moisture detector. The qualified grains are discharged from the grain discharge pipe. [0003] When the layer thickness of the grains falling into the drying bin is large, the temperature and humidity measured at the inlet and outlet of the hot air are greatly different, the data is unreliable, and the resistance...

AI Technical Summary

Problems solved by technology

[0003] When the layer thickness of the grain falling into the drying bin is large, the temperature and humidity measured at the inlet and outlet of the hot air vary greatly, the data is unreliable, and the resistance of the hot air passing through the valley layer is large, the drying is uneven, and dust is easy to accumulate between the grains

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