Buckwheat processing process

Abstract

The invention discloses a buckwheat processing process. The buckwheat processing process comprises the following steps: screening hulled mixed materials containing a few buckwheat husks, buckwheat grains and buckwheat with husks through a vibrating classifying screen, introducing oversize materials of a lower-layer screen into a color selector to carry out color selection and separation, sequentially carrying out color selection for three times, screening and classifying separated semi-finished product buckwheat grains which are subjected to color selection for three times through the vibrating classifying screen to obtain high-quality finished product buckwheat grains; and uniformly mixing small-particle type buckwheat with husks which are subjected to color selection by the first time and by the second time with large-particle type buckwheat with husks retained on an upper-layer screen, carrying out cold-heat treatment, and introducing the buckwheat with husks into a huller in batches to carry out secondary husking. The final material-particle separating rate reaches 99.9%, the secondary husking yield is higher than 95%, the purity of the buckwheat grains can be higher than 99.9%, imperfect grain mass is less than or equal to 1%, the impurities are less than or equal to 0.10%, the broken buckwheat is less than or equal to 1%; and the processed buckwheat is bright and clean in surface, and has obvious buckwheat fragrance, so that the purpose that material-particle separation is high in quality, is high in efficiency, is high in yield and is large-scale is realized after buckwheat husking.

Description

technical field [0001] The invention relates to buckwheat processing, in particular to a buckwheat processing technology. Background technique [0002] Buckwheat belongs to the dicotyledonous Polygonaceae, buckwheat genus, its growth period is short, suitable for growth in cold climate environment, commonly known as jade wheat, triangle wheat, rye wheat, is a very ideal miscellaneous grain crops. Because of its unique nutritional value, it has been paid more and more attention by people. However, based on the characteristics of buckwheat such as small size, strong shell toughness, large kernel brittleness, and small gap between kernel and shell, coupled with the limitations and imperfections of the mechanical properties of the existing buckwheat shelling machine, the existing shelling machine is used for its It is very difficult to shell the buckwheat. The chaff cannot be completely removed after the buckwheat is shelled by the sheller. According to the requirements of the ...

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Problems solved by technology

[0004] The technical problem solved by the present invention is to overcome the defects of the separation of shelled buckwheat and shelled buckwheat and the low secondary shelling rate in the existing buckwheat processing process, and the buckwheat contains a small part of buckwheat husk, buckwheat and The mixture of hulled buckwheat is firstly screened through the vibrating grading sieve A equipped with upper and lower screens, using the particle size difference between hulled buckwheat and buckwheat and automatic grading characteristics, with the help of a screen with suitable mesh and movement form For the first paddy separation, the buckwheat husks are sent to the collection bin of the air net system by the suction type vertical suction separator; The material is broken buckwheat and dust, and enters the collection bin; the material on the lower screen is mainly buckwheat and some small-grained buckwheat with shells, and this part of the mixed material enters the color sorter through the elevator for color separation and separation. The shelled small-grained buckwheat is mixed with the upper sieve (large-grained shelled buckwheat) and then enters the shelling machine for secondary shelling. The separated qualified pure buckwheat continues to be used in two layers. The vibrating grading sieve B of the sieve is screened, and the broken buckwheat and light impurities are separated again to produce high-purity and high-quality buckwheat products

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