Counterflow Grain Drying Equipment

Abstract

The invention relates to a grain drying equipment used for drying grain, in particular to a countercurrent grain drying equipment. It includes a barn, a drying bin located under the barn, and a recovery bin located under the drying bin. An auger conveyor is arranged in the recovery bin, and the output end of the auger conveyor is connected to the input end of the material lifter , the output end of the material lifter is connected to the feed port at the upper end of the barn, and several inclined deflectors are arranged in the drying bin; the upper end of the drying bin is provided with exhaust holes; the recovery bin is fixedly installed There is an obliquely arranged material guide and ventilation plate, and an air inlet is arranged on the side wall of the recovery bin below the material guide and ventilation plate. When the countercurrent grain drying equipment works, the drying air flow flows from bottom to top, which prolongs the heating path of the grain and reduces the speed of the grain falling. The drying efficiency is high, the drying speed is fast, and the thermal efficiency is high, which is beneficial to reduce energy consumption, Energy saving.

Description

technical field [0001] The invention relates to a grain drying equipment used for drying grain, in particular to a countercurrent grain drying equipment. Background technique [0002] The barn of the existing circulating grain dryer is set above the drying bin, and the recovery bin is set under the drying bin. The hot air enters from the air inlet on one side of the drying bin and is discharged from the air outlet on the other side. The grains are heated and dried by hot air during the falling process, and the grains that fall into the recovery bin are transported to the barn through the lifting device, and the drying cycle is repeated in this way. With this kind of dryer, the hot air flows horizontally in the drying bin, the grains fall fast and the heating time is short, the grains are only heated briefly in the drying bin, and no longer heated in the recovery bin, and the drying efficiency of a single cycle is low , the exhaust outlet temperature is high, and the thermal...

AI Technical Summary

Problems solved by technology

With this kind of dryer, the hot air flows horizontally in the drying bin, the grains fall fast and the heating time is short, the grains are only heated briefly in the drying bin, and no longer heated in the recovery bin, and the drying efficiency of a single cycle is low , high exhaust temperature, low thermal efficiency

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