Grain transfer, impurity removal and sorting methods

Abstract

The invention provides a method for transferring conveyance, impurity removal and sorting of grain and a sorting device. The method for transferring conveyance, impurity removal and sorting of the grain comprises the following steps that firstly, primary impurity removal is conducted, primary screening is conducted, the grain screened by a primary screening device falls to a discharging lifting mechanism, and the discharging lifting mechanism drives and lifts the grain into a fine screening device; secondly, fine screening is conducted, the grain is screened in the manner that the wind speed of a fine screen draught fan arranged in the fine screening device is controlled, the screened grain is screened again by a grain discharging screen, qualified grain is discharged from a grain outlet and falls onto a granary conveyer belt, and tailings generated after screening of the grain discharging screen enter a tailing screening mechanism; and finally, the tailings are screened, the screened grain falls onto a tailing grain conveyer belt and is conveyed onto the granary conveyer belt by the tailing grain conveyer belt and put in storage, and then the purposes of transferring conveyance, impurity removal and sorting are achieved. By the adoption of the method for transferring conveyance, impurity removal and sorting of the grain and the sorting device, the automation degree is high, the use effect is good, and the screened grain is plump and free from impurities.

Description

technical field [0001] The invention relates to the technical field of grain production, in particular to methods for transporting, removing impurities and sorting grains. Background technique [0002] Harvested grain needs to be removed from frivolous objects such as rice leaves and rice stalks. At present, the grain is mostly pushed flat on the sun-drying field, and then the larger rice leaves and rice stalks are screened while turning with a bamboo rake, and then passed through a windmill. , sieves and other equipment for screening, and finally into the warehouse, this method is all manual work, which has many procedures and high labor intensity. Contents of the invention [0003] The object of the present invention is to overcome the deficiencies of the prior art, and provide a method for transferring, removing impurities and sorting grains with high degree of automation and good use effect. [0004] In order to achieve the above object, the technical solution provide...

AI Technical Summary

Problems solved by technology

[0002] Harvested grain needs to be removed from frivolous objects such as rice leaves and rice stalks. At present, the grain is mostly pushed flat on the sun-drying field, and then the larger rice leaves and rice stalks are screened while turning with a bamboo rake, and then passed through a windmill. , sieves and other equipment for screening, and finally put into the warehouse. This method is all manual work, which has many procedures and high labor intensity.

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