Grain fine screening device

Abstract

The invention discloses a grain fine sieving device, which comprises a feeding device and a sieving chamber. The feeding device includes an inclined feeding cylinder, a feeding port is installed on one side of the bottom of the inclined feeding cylinder, and a feeding port is installed on the top of the inclined feeding cylinder. The transmission chamber, the inside of the inclined feeding cylinder is equipped with a conveying shaft, and a conveying screw plate is installed on the conveying shaft. The conveying shaft is connected with the power motor on one side of the inclined feeding cylinder through the transmission chamber, and the top of the inclined feeding cylinder is close to the screening chamber. There is a material delivery outlet on one side, and the delivery outlet is connected with the top opening of the sieving chamber through the delivery channel; the bottom end of the delivery shaft is installed on the inner bottom surface of the inclined delivery cylinder through a fixed bearing. Through the mutual cooperation between the feeding device and the sub-sieving chamber, the present invention can finely screen the grain, and can screen out the dust, chaff, gravel and sand contained in the grain, and the whole device is working The process is less affected by the outside world, and the working state is constant, which can effectively guarantee the screening effect.

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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