A kind of sesame grain classification and cleaning system and method based on positive and negative pressure separation

Abstract

The invention discloses a classification and cleaning system for sesame seeds separated by positive and negative pressure. The classification and cleaning system comprises a screening system (1), an impurity removal system (2) and a classification system (3). The screening system (1) comprising a hopper and at least one layer of filter screen for blocking impurities larger than the screen openings from entering the classification system (3); the impurity removal system (2) is used for removing impurities by conveying airflow towards the filter screen; the The grading system (3) is used for grading and cleaning sesame based on positive and negative pressure. According to the characteristics of sesame seeds, the present invention adopts a device combining positive and negative air pressure, so as to realize the classification of sesame seeds into good and bad grades. First, the sesame seeds are adsorbed to the seed suction hole of the separation drum through negative pressure, and then the separation drum is driven to rotate into the positive pressure zone by the transmission of the sprocket, and the sesame seeds are blown out from the seed suction hole by the positive pressure and transported to the collection bag through the seed collection bin. middle. The invention has many advantages such as safety, reliability, convenience and flexibility, and high efficiency.

Description

technical field [0001] The invention relates to the technical field of grading of crop grain quality, in particular to a grading device and method for cleaning sesame grains. Background technique [0002] Sesame is one of the oldest crops known to man. Today, sesame is widely planted in tropical and subtropical regions and is an important high-quality oil crop in the world, as well as an important oil crop and specialty agricultural product for producing high-quality edible oil in China. At present, sesame is grown in about 65 countries in the world, but it is mainly distributed in developing countries and underdeveloped regions such as Asia and Africa. The research and development of sesame production and processing technology is relatively regional. China is one of the main sesame producing countries in the world. The main producing provinces are Henan, Anhui, Hubei, Jiangxi, etc., accounting for about two-thirds of the country's sesame area. Chinese sesame enjoys a high...

AI Technical Summary

Problems solved by technology

Due to the small size and light weight of sesame seeds, it is difficult to quickly separate high-quality sesame seeds by using equipment such as sieves and color sorters in the past. Therefore, the inventor needs to design a novel quick separation device according to the material characteristics of sesame. The rapid grading of sesame is of great significance

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