Grain fine screening device

Abstract

The invention discloses a grain fine screening device. The grain fine screening device comprises a feeding device and a separating screening bin chamber; the feeding device comprises an inclined feeding cylinder; a feed port is mounted on one side of the bottom of the inclined feeding cylinder; a transmission bin is mounted at the top of the inclined feeding cylinder; a conveying shaft is mounted in the inclined feeding cylinder; a conveying spiral plate is mounted on the conveying shaft; the conveying shaft is connected with a power motor on one side of the inclined feeding cylinder through the transmission bin; a conveying outlet is formed in the side, near the separating screening bin chamber, of the top of the inclined feeding cylinder; the conveying outlet is connected with a top opening of the separating screening bin chamber through a conveying channel; and one end of the bottom of the conveying shaft is mounted on the bottom surface of the inner side of the inclined feeding cylinder through a fixed bearing. Through mutual cooperation between the feeding device and the separating screening bin chamber, the grain fine screening device can finely screen grains, and can remove dust, bran, gravels and sand contained in the grains; the influence of the outside on the whole device in the working process is low; the working state is constant; and the screening effect can be effectively guaranteed.

Description

technical field [0001] The invention relates to the technical field of grain screening devices, in particular to a fine grain screening device. Background technique [0002] Grain refers to grains of grain. Any of the seeds of various cereals used as food. [0003] Grains are composed of four parts: bran, aleurone layer, endosperm and germ (bud), and the structures of various cereal seeds are basically similar. [0004] Grain husk: it is the shell of the grain, accounting for about 5% of the grain, mainly composed of cellulose, hemicellulose, etc., and also contains a certain amount of protein, fat, B vitamins and minerals, but this part is processed during grain processing. are generally removed during the process. [0005] Aleurone layer: located between the husk and endosperm, composed of thick-walled cells, accounting for about 8% of the grain, with more cellulose content, higher protein, fat, B vitamins and minerals, and important nutrients Meaning, but it is easy t...

AI Technical Summary

Problems solved by technology

[0010] When harvesting grains, dust, chaff, gravel or sand are often mixed into the grains. The traditional method is to artificially oxygenate the grains and rely on natural wind to remove impurities in the grains. This method not only brings It requires a lot of physical labor, and is also limited by the external environment, and the effect cannot be well guaranteed, and the cleanliness of the grains obtained often cannot meet the demand.

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