Drying machine with purification pretreatment function

Abstract

A drying machine with a purification pretreatment function comprises a drying tower. The drying tower includes a tempering layer, a diversion layer, a drying layer and a circulation layer sequentially from top to bottom. A discharging outlet of the circulation layer is higher than a feeding inlet in the bottom of a lift and is connected with the feeding inlet through an inclined slideway. A discharging outlet in the top of the lift is higher than a feeding inlet of the tempering layer and is connected with the feeding inlet through an inclined slideway. The drying layer is divided into multiple sub-layers, each sub-layer is provided with a plurality of diverters, and the diverters on each sub-layer are arranged between the diverters on the upper adjacent sub-layer and the diverters on the lower adjacent sub-layer. The top end of each diverter is shaped like an inverted V, and air outlets are formed in two sides of each diverter. A cyclone separator is arranged above the tempering layer. Downward sliding of grain under the action of self gravity is used, an upper auger, a lower auger and an auger power motor are omitted, the manufacturing cost is greatly reduced, the machining, manufacturing and maintenance processes are simple, and the grain damage rate is greatly lowered. Therefore, drying is more uniform, and the drying effect is better. In addition, an overturning layer does not need to be arranged independently, the size of the drying tower is reduced, and space is saved.

Description

technical field [0001] The invention relates to the technical field of grain drying, in particular to a dryer capable of impurity removal and pretreatment. Background technique [0002] The process of grain from harvesting to storage requires drying of grain for subsequent processing or long-term storage of grain, so grain dryers are generally used for drying before grain storage. At present, the general dryer uses auger for conveying, but the grain damage caused by the conveying process of the upper and lower augers accounts for 40-50% of the total damage of the dryer, and the mechanical failure caused by the operation of the upper and lower augers accounts for 40% of the total failure of the dryer. About 60%, due to the use of the upper and lower augers, it must be equipped with a power mechanical motor, which not only increases the cost of the dryer itself, but also increases a certain amount of expenses for the customer. The total power accounts for 25% of the total powe...

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Problems solved by technology

At present, the general dryer uses auger for conveying, but the grain damage caused by the upper and lower auger transportation accounts for 40-50% of the total damage of the dryer, and the mechanical failure caused by the upper and lower auger work accounts for 40% of the total failure of the dryer. About 60%, due to the use of the upper and lower augers, it must be equipped with a power mechanical motor, which not only increases the cost of the dryer itself, but also increases the cost of the customer. The total power accounts for 25% of the total power of the dryer

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